WO2018109877A1 - Surface fastener - Google Patents

Abstract

Connectable and separable first and second surface fastener members (10, 20) are each provided with engagement element groups (14, 24) in which engagement elements (15, 25) are arranged in concentric circles, and flat-plate-shaped substrates (12, 22), the first surface fastener member being provided with: projections (16) that project farther than the engagement element groups from the center part of the concentric circles in which the engagement element groups on one surface of the substrate are arrayed, which is the inner side in the radial direction of the engagement element groups; and accommodating recessed sections (18) that are formed in the gaps in the radial direction between the projections and the plurality of engagement elements positioned on the innermost side of the engagement element groups in the radial direction, and the second fastener member being provided with holes (28) for accommodating the tips of the projections in the center part of the concentric circles in which the engagement element groups on one surface of the substrate are arrayed, the plurality of engagement elements positioned on the innermost side in the radial direction of the engagement element group also being used as guide parts (26) for guiding the projections so as to be able to move toward the holes, and being accommodated in the accommodating recessed sections.

Description

Translated fromJapanese

面ファスナーHook-and-loop fastener

　本発明は面ファスナーに関する。The present invention relates to a hook-and-loop fastener.

　面ファスナーは、連結および分離可能な一対の面ファスナー部材を備えるものである。面ファスナー部材は、通常、基板と、基板の厚み方向の一面から突出する多数の連結素子の集合である連結素子群とを備えるものである。また連結素子の一例として、キノコと類似する形状をしていることから、俗にキノコ型と称される連結素子が存在する。キノコ型の連結素子同士は、キノコ状の頭部が噛み合うようにして連結することから、以後、キノコ型の連結素子を「噛合素子」と称する。The hook-and-loop fastener includes a pair of hook-and-loop fastener members that can be connected and separated. A hook-and-loop fastener member is normally provided with a board | substrate and the connection element group which is a group of many connection elements which protrude from one surface of the thickness direction of a board | substrate. As an example of the connecting element, there is a connecting element commonly called a mushroom type because it has a shape similar to a mushroom. Since the mushroom-type coupling elements are coupled so that the mushroom-shaped heads mesh with each other, the mushroom-type coupling elements are hereinafter referred to as “meshing elements”.

　そして噛合素子を備える面ファスナーの一例として、一対の面ファスナー部材同士を位置決めして連結できるように、基板と噛合素子群の他に、位置決め手段を備えるものが存在する（特許文献１，２）。And as an example of a hook_and_loop | surface fastener provided with a meshing element, what has a positioning means other than a board | substrate and a meshing element group exists so that a pair of surface fastener members can be positioned and connected (patent documents 1, 2). .

　特許文献１の図３に開示されている位置決め手段は、一方の面ファスナー部材には噛合素子群の中心部において基板の厚み方向の一面から突出する柱状突起を備え、他方の面ファスナー部材には噛合素子群の中心部であって基板の厚み方向の一面に柱状突起を抜き差し可能な孔を備えるものである。より詳しくは、柱状突起は、噛合素子群の中心部において噛合素子群よりも基板から突出するように形成されている。なお特許文献２の図３に開示されている位置決め手段は、特許文献１の図３に開示されている位置決め手段と比べて、少し形状が異なる程度であり、同じ構成要素を備えるものである。In the positioning means disclosed in FIG. 3 ofPatent Document 1, one hook-and-loop fastener member has a columnar protrusion protruding from one surface in the thickness direction of the substrate at the center of the engagement element group, and the other hook-and-loop fastener member has It is a central portion of the meshing element group and has a hole through which a columnar protrusion can be inserted and removed on one surface in the thickness direction of the substrate. More specifically, the columnar protrusion is formed so as to protrude from the substrate more than the meshing element group at the center of the meshing element group. The positioning means disclosed in FIG. 3 of Patent Document 2 is slightly different from the positioning means disclosed in FIG. 3 ofPatent Document 1 and has the same components.

　上記面ファスナー部材を用いて、一対の面ファスナー部材同士を連結するときには、１）まず孔の外周に配置された複数の噛合素子の内側に柱状突起を通過させ、２）次に柱状突起を孔に差し込むと共に、一対の面ファスナーの噛合素子同士を連結させる。When connecting a pair of hook-and-loop fastener members using the hook-and-loop fastener member, 1) first pass the columnar protrusions inside the plurality of meshing elements arranged on the outer periphery of the hole, and 2) then insert the columnar protrusions into the holes. And the meshing elements of the pair of hook-and-loop fasteners are connected to each other.

特許３６３６７３５号公報Japanese Patent No. 3636735特開平８－１１２１１３号公報Japanese Patent Laid-Open No. 8-112113

　しかしながら特許文献１の図３に示された位置決め手段は、孔の直径に対して柱状突起の直径が非常に小さいので、孔の中心と柱状突起の中心とを一致させることは非常に困難であり、位置決め精度が悪い。However, since the positioning means shown in FIG. 3 ofPatent Document 1 has a very small diameter of the columnar protrusion with respect to the diameter of the hole, it is very difficult to match the center of the hole and the center of the columnar protrusion. The positioning accuracy is poor.

　また仮に位置決め手段が特許文献１の図３とは違って、孔の直径と柱状突起の直径を殆ど同じに設定すると、噛合素子同士が連結し難くなる。それは以下の理由による。
　特許文献１の図３に示された面ファスナーでは、柱状突起の中心と孔の中心を一致させると、柱状突起の外周を最も近くで取り囲む複数の噛合素子（半径方向に関して最も内側に位置する複数の噛合素子）は、孔の外周を最も近くで取り囲む複数の噛合素子よりも半径方向内側に配置されている。つまり特許文献１の図３に示された面ファスナーの技術的思想は、柱状突起の外周を最も近くで取り囲む複数の噛合素子における半径方向内側に、孔側の噛合素子を収容する思想が無いものである。
　噛合素子同士が連結するときは、噛合素子が基板側を中心にして瞬間的に倒れ、噛合素子が復元力によって元に戻ったり、戻ろうとして倒れた状態を保ったりして、噛合素子が噛み合うものである。したがって噛合素子が倒れる空間が必要となる。
　それにも関わらず、位置決め手段が孔の直径と柱状突起の直径を殆ど同じに設定したものであると、柱状突起の外周を最も近くで取り囲む複数の噛合素子と柱状突起との間が非常に狭くなる。そうすると柱状突起の外周を最も近くで取り囲む複数の噛合素子は、倒れる空間が狭くなり、相手の面ファスナー部材の噛合素子に連結し難くなる。Also, if the positioning means is different from FIG. 3 ofPatent Document 1 and the diameter of the hole and the diameter of the columnar protrusion are set to be almost the same, the meshing elements are difficult to connect. The reason is as follows.
In the hook-and-loop fastener shown in FIG. 3 ofPatent Document 1, when the center of the columnar protrusion is aligned with the center of the hole, a plurality of meshing elements that surround the outer periphery of the columnar protrusion closest to each other (a plurality of innermost elements in the radial direction) The meshing element) is disposed radially inward of the plurality of meshing elements that most closely surround the outer periphery of the hole. In other words, the technical idea of the hook-and-loop fastener shown in FIG. 3 ofPatent Document 1 is that there is no idea of accommodating the engagement element on the hole side inside the plurality of engagement elements that surround the outer periphery of the columnar protrusion closest. It is.
When the meshing elements are connected to each other, the meshing element is momentarily tilted around the substrate side, and the meshing element meshes with the restoring element to return to its original state or keep the tilted state to return. Is. Therefore, a space where the meshing element falls is necessary.
Nevertheless, if the positioning means has the hole diameter and the columnar protrusion diameter almost the same, the space between the plurality of meshing elements and the columnar protrusion that surround the outer periphery of the columnar protrusion closest is very narrow. Become. As a result, the plurality of meshing elements that surround the outer periphery of the columnar protrusion closest to each other have a narrow space for falling, and are difficult to connect to the meshing elements of the mating surface fastener member.

　本発明は上記実情を考慮して創作されたもので、その目的は、位置決め精度を向上させると共に、一対の面ファスナー部材を連結し易くすることである。The present invention was created in consideration of the above circumstances, and its purpose is to improve positioning accuracy and to easily connect a pair of hook-and-loop fastener members.

　本発明の面ファスナーは、連結および分離可能な第１、第２の面ファスナー部材を備える。
　第１、第２の面ファスナー部材は、柱状の柱部、柱部の先端から柱部の延長方向に対して交差する方向および前記延長方向に突出する頭部を備える噛合素子を同心円状に配列してある噛合素子群と、平板状をなすと共にその厚み方向の一面から噛合素子群の各柱部が突出する基板とをそれぞれ備える。
　第１の面ファスナー部材は、噛合素子群の半径方向内側であって基板の前記一面の噛合素子群が配列する同心円の中心部から噛合素子群よりも突出する突起部と、噛合素子群のうち半径方向に関して最も内側に位置する複数の噛合素子と突起部とによって、それらの半径方向の間に形成される収容凹部とを備える。
　第２の面ファスナー部材は、基板の前記一面の噛合素子群が配列する同心円の中心部において突起部の先部を収容する穴部を備え、噛合素子群のうち半径方向に関して最も内側に位置する複数の噛合素子を、突起部を穴部へ向かって移動可能に案内すると共に、収容凹部に収容される案内部として兼用する。The hook-and-loop fastener of the present invention includes first and second hook-and-loop fastener members that can be connected and separated.
The first and second hook-and-loop fastener members are arranged concentrically with columnar column portions, a direction intersecting with the extension direction of the column portion from the tip of the column portion, and a head protruding in the extension direction. Each engaging element group, and a substrate that has a flat plate shape and from which one column of the engaging element group protrudes from one surface in the thickness direction.
The first hook-and-loop fastener member is a radially inner side of the meshing element group, and a protrusion protruding from the meshing element group from the center part of the concentric circle where the meshing element group on the one surface of the substrate is arranged, and the meshing element group A housing recess formed between the plurality of meshing elements and the protrusions located on the innermost side in the radial direction is formed between the radial directions.
The second hook-and-loop fastener member includes a hole portion that accommodates the tip portion of the protruding portion at the center portion of the concentric circle where the meshing element groups on the one surface of the substrate are arranged, and is located on the innermost side in the radial direction among the meshing element groups. The plurality of meshing elements guide the protrusions so as to be movable toward the holes, and also serve as guides accommodated in the accommodating recesses.

　突起部が穴部に収容されるものであれば、穴部の直径と突起部の直径との関係は問わず、たとえば穴部の直径は突起部の直径と同じであったり、突起部の直径よりも僅かに長かったりしても良い。しかし穴部に突起部を差し込みやすくし、しかも突起部の中心と穴部の中心をできるだけ一致させ、第１の面ファスナー部材と第２の面ファスナー部材との位置決め精度を向上させるには、それには次の１）、２）のようにすることが望ましい。As long as the protrusion is accommodated in the hole, the relationship between the diameter of the hole and the diameter of the protrusion does not matter. For example, the diameter of the hole is the same as the diameter of the protrusion, or the diameter of the protrusion It may be slightly longer than. However, in order to improve the positioning accuracy of the first surface fastener member and the second surface fastener member by making it easier to insert the protrusion into the hole and making the center of the protrusion and the center of the hole coincide as much as possible, It is desirable to perform the following 1) and 2).

　１）穴部の直径は突起部の直径よりも長くすることである。また仮想の円であって第１の面ファスナー部材の噛合素子群のうち半径方向に関して最も内側に位置する複数の噛合素子における中心を通過する仮想の円の直径は、第２の面ファスナー部材の案内部における外接円の直径よりも大きいものとすることである。そのうえで穴部の直径と突起部の直径との差は、仮想の円の半径と案内部の外接円の半径との差よりも小さくすることである。1) The diameter of the hole is longer than the diameter of the protrusion. The diameter of the virtual circle that passes through the center of the plurality of meshing elements located on the innermost side in the radial direction among the meshing element group of the first surface fastener member is the diameter of the second surface fastener member. The diameter is larger than the diameter of the circumscribed circle in the guide portion. In addition, the difference between the diameter of the hole portion and the diameter of the projection portion is to be smaller than the difference between the radius of the virtual circle and the radius of the circumscribed circle of the guide portion.

　２）穴部の直径は突起部の直径よりも長くすることである。そのうえで穴部の直径と突起部の直径との差は、第１又は第２の面ファスナー部材の柱部の直径よりも小さくすることである。2) The diameter of the hole is longer than the diameter of the protrusion. In addition, the difference between the diameter of the hole and the diameter of the protrusion is to be smaller than the diameter of the column portion of the first or second hook-and-loop fastener member.

　案内部が突起部を案内するものであれば、案内部の直径と突起部の直径との関係は問わず、たとえば穴部の直径は突起部の直径と同じであったり、突起部の直径よりも僅かに長かったりしても良い。しかし案内部に突起部を差し込みやすくし、しかも突起部の中心と穴部の中心をできるだけ一致させ、第１の面ファスナー部材と第２の面ファスナー部材との位置決め精度を向上させるには、次のようにすることが望ましい。
　案内部の内接円の直径は、突起部の直径よりも長くすることである。そのうえで案内部の内接円の直径と突起部の直径との差は、第１、第２の面ファスナー部材の柱部の直径よりも小さくすることである。If the guide part guides the protrusion part, the relationship between the diameter of the guide part and the diameter of the protrusion part does not matter. For example, the diameter of the hole part is the same as the diameter of the protrusion part or the diameter of the protrusion part. May be slightly longer. However, in order to improve the positioning accuracy of the first surface fastener member and the second surface fastener member by making it easy to insert the protrusion into the guide portion and making the center of the protrusion and the center of the hole coincide as much as possible, It is desirable to do as follows.
The diameter of the inscribed circle of the guide part is longer than the diameter of the protrusion part. In addition, the difference between the diameter of the inscribed circle of the guide portion and the diameter of the protrusion is to be smaller than the diameter of the column portion of the first and second hook-and-loop fastener members.

　突起部の先端面が第２の面ファスナー部材における噛合素子群の中に入らないようにするためには次のようにすることが望ましい。
　すなわち、突起部の先端面の直径は、第２の面ファスナー部材の中心部よりも半径方向外側の領域において隣り合う噛合素子同士の最短距離よりも長くすることである。In order to prevent the front end surface of the protrusion from entering the meshing element group in the second hook-and-loop fastener member, it is desirable to do the following.
That is, the diameter of the front end surface of the protrusion is set to be longer than the shortest distance between adjacent meshing elements in the region radially outward from the center portion of the second hook-and-loop fastener member.

　本発明の面ファスナーによれば、第２の面ファスナー部材の噛合素子群のうち半径方向に関して最も内側に位置する複数の噛合素子が案内部として機能し、その案内部が突起部を穴部へ向かって移動可能に案内するので、突起部を第２の面ファスナー部材の穴部に挿入し易くなる。しかも第１の面ファスナー部材の噛合素子群のうち半径方向に関して最も内側の複数の噛合素子がその半径方向内側には収容凹部を介して突起部を備えるので、たとえば収容凹部のない従来のようなものに比べれば、半径方向内側に倒れることも可能となり、噛合素子同士が連結し易くなる。さらに案内部が収容凹部に収容されることによって、第１、第２の面ファスナー部材の位置決め精度が向上する。According to the surface fastener of the present invention, a plurality of meshing elements located on the innermost side in the radial direction among the meshing element groups of the second surface fastener member function as a guide portion, and the guide portion serves as a projection portion into the hole portion. Since it guides so that it can move toward, it becomes easy to insert a projection part in the hole of a 2nd surface fastener member. Moreover, since the plurality of innermost engaging elements in the radial direction among the engaging element groups of the first hook-and-loop fastener member are provided with protrusions via the receiving recesses on the inner side in the radial direction, Compared with a thing, it also becomes possible to fall inward in the radial direction, and the meshing elements are easily connected. Furthermore, the positioning accuracy of the first and second hook-and-loop fastener members is improved by the guide portion being housed in the housing recess.

　また穴部の直径が突起部の直径よりも長く、仮想の円の直径が第２の面ファスナー部材の案内部における外接円の直径よりも大きく、且つ穴部の直径と突起部の直径との差が仮想の円の半径と案内部の外接円の半径との差よりも小さい面ファスナーであれば、穴部よりも突起部が僅かに小さいので、突起部が穴部に差し込みやすくなると共に、第１の面ファスナー部材と第２の面ファスナー部材との位置決め精度が向上する。The diameter of the hole is longer than the diameter of the protrusion, the diameter of the virtual circle is larger than the diameter of the circumscribed circle in the guide part of the second surface fastener member, and the diameter of the hole and the diameter of the protrusion If the surface fastener is smaller than the difference between the radius of the virtual circle and the radius of the circumscribed circle of the guide portion, the protrusion is slightly smaller than the hole, so that the protrusion can be easily inserted into the hole, Positioning accuracy between the first hook-and-loop fastener member and the second hook-and-loop fastener member is improved.

　また穴部の直径が突起部の直径よりも長く、穴部の直径と突起部の直径との差が第１又は第２の面ファスナー部材の柱部の直径よりも小さい面ファスナーであれば、穴部よりも突起部が僅かに小さいので、突起部が穴部に差し込みやすくなると共に、第１の面ファスナー部材と第２の面ファスナー部材との位置決め精度が向上する。In addition, if the diameter of the hole is longer than the diameter of the protrusion, and the difference between the diameter of the hole and the diameter of the protrusion is smaller than the diameter of the column part of the first or second surface fastener member, Since the protruding portion is slightly smaller than the hole portion, the protruding portion can be easily inserted into the hole portion, and positioning accuracy between the first hook-and-loop fastener member and the second hook-and-loop fastener member is improved.

　また案内部の内接円の直径が突起部の直径よりも長く、案内部の内接円の直径と突起部の直径との差が第１、第２の面ファスナー部材の柱部の直径よりも小さい面ファスナーであれば、案内部の内接円よりも突起部が僅かに小さいので、突起部が案内部に差し込みやすくなり、第１の面ファスナー部材と第２の面ファスナー部材との位置決め精度が向上する。Further, the diameter of the inscribed circle of the guide portion is longer than the diameter of the projection portion, and the difference between the diameter of the inscribed circle of the guide portion and the diameter of the projection portion is larger than the diameter of the column portion of the first and second hook-and-loop fastener members. If the surface fastener is smaller, the protrusion is slightly smaller than the inscribed circle of the guide portion, so that the protrusion can be easily inserted into the guide portion, and the first surface fastener member and the second surface fastener member are positioned. Accuracy is improved.

　また突起部の先端面の直径が第２の面ファスナー部材の中心部よりも半径方向外側の領域において隣り合う噛合素子同士の最短距離よりも長い面ファスナーであれば、突起部の先端面が第２の面ファスナー部材における噛合素子群の中に入らなくなるので、第１、第２の面ファスナー部材を連結し易い。Further, if the surface fastener has a diameter that is longer than the shortest distance between adjacent meshing elements in a region radially outward from the center portion of the second surface fastener member, the tip end surface of the protrusion is the first surface of the protrusion. The first and second hook-and-loop fastener members can be easily connected because they do not enter the meshing element group of the two hook-and-loop fastener members.

本発明の第一実施形態の面ファスナーが連結している状態を簡易的に示した部分断面図である。It is the fragmentary sectional view which showed simply the state which the surface fastener of 1st embodiment of this invention has connected.第一実施形態の面ファスナーが分離している状態を示す断面図である。It is sectional drawing which shows the state which the surface fastener of 1st embodiment has isolate | separated.第１の面ファスナー部材を示す平面図である。It is a top view which shows a 1st surface fastener member.図３のIV－IV線断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3.第２の面ファスナー部材を示す平面図である。It is a top view which shows a 2nd surface fastener member.図５のVI－VI線断面図である。FIG. 6 is a sectional view taken along line VI-VI in FIG. 5.面ファスナーの使用状態を示す断面図であり、拡大図を併用している。It is sectional drawing which shows the use condition of a hook_and_loop | surface fastener, and uses the enlarged view together.

　本発明の第一実施形態の面ファスナー１は図１に示すように、連結および分離可能な第１、第２の面ファスナー部材１０，２０を備えるものである。なお図１では、第１、第２の面ファスナー部材１０，２０を視覚的に区別し易くするために、第１の面ファスナー部材１０を部分断面図で表している。また図１では、第１、第２の面ファスナー部材１０，２０の連結状態を視覚的に理解し易くするために、後述する噛合素子群１４，２４の位置を、少し不正確なものとしてある。噛合素子群１４，２４の正確な位置は、図２～６に示されている。The hook andloop fastener 1 according to the first embodiment of the present invention includes first and second hook andloop fastener members 10 and 20 that can be connected and separated as shown in FIG. In FIG. 1, the first hook-and-loop fastener member 10 is shown in a partial cross-sectional view so that the first and second hook-and-loop fastener members 10 and 20 can be easily distinguished visually. Moreover, in FIG. 1, in order to make it easy to visually understand the connection state of the first and second hook-and-loop fastener members 10 and 20, the positions of the meshingelement groups 14 and 24 described later are slightly inaccurate. . The exact positions of the meshingelement groups 14, 24 are shown in FIGS.

　第１の面ファスナー部材１０は樹脂製で、図３、４に示すように、基板１２と、基板１２の厚み方向の一面から突出する噛合素子群１４とを備える。
　第２の面ファスナー部材２０も樹脂製で、図５、６に示すように、基板２２と、基板２２の厚み方向の一面から突出する噛合素子群２４とを備える。The first hook-and-loop fastener member 10 is made of resin, and includes asubstrate 12 and ameshing element group 14 protruding from one surface in the thickness direction of thesubstrate 12 as shown in FIGS.
The second hook-and-loop fastener member 20 is also made of resin, and includes asubstrate 22 and ameshing element group 24 protruding from one surface in the thickness direction of thesubstrate 22 as shown in FIGS.

　第１、第２の面ファスナー部材１０，２０が連結する場合、各基板１２，２２の厚み方向の二面のうち噛合素子群１４，２４が突出する面は、相手方の面ファスナー部材１０，２０に対向する面なので、以後、「対向面」と称する。
　このように基板１２，２２と噛合素子群１４，２４は、第１、第２の面ファスナー部材１０，２０において共通の構成部分であるので、以下では、第１の面ファスナー部材１０の基板１２と噛合素子群１４を中心に説明する。第２の面ファスナー部材２０の基板２２と噛合素子群２４は、第１の面ファスナー部材１０の基板２２と噛合素子群２４と同じ部分については、説明をできる限り省略し、相違する部分については、説明を詳細にする。When the first and second hook-and-loop fastener members 10 and 20 are connected, the surface from which themeshing element groups 14 and 24 protrude out of the two surfaces in the thickness direction of thesubstrates 12 and 22 is the mating hook-and-loop fastener members 10 and 20. Hereinafter, it will be referred to as an “opposing surface”.
Thus, since the board |substrates 12 and 22 and themeshing element groups 14 and 24 are a common component part in the 1st, 2ndsurface fastener members 10 and 20, below, the board |substrate 12 of the 1stsurface fastener member 10 is hereafter. The meshingelement group 14 will be mainly described. For thesubstrate 22 and themeshing element group 24 of the second hook-and-loop fastener member 20, the same parts as those of thesubstrate 22 and themeshing element group 24 of the first hook-and-loop fastener member 10 are omitted as much as possible, and different parts are described. Detailed explanation.

　第１の面ファスナー部材１０の基板１２は図３、４に示すように、平板状をなすと共に円形である。また基板１２は、噛合素子群１４を配置するための基準点１２ｃを説明の便宜上備えるもので、円形の中心が基準点１２ｃである。Thesubstrate 12 of the first hook-and-loop fastener member 10 is flat and circular as shown in FIGS. Thesubstrate 12 is provided with areference point 12c for arranging themeshing element group 14 for convenience of explanation, and the center of the circle is thereference point 12c.

　第２の面ファスナー部材２０の基板２２も図５、６に示すように、第１の面ファスナー部材１０の基板１２と同様に平板状をなすと共に外形が円形である。また基板２２は、噛合素子群２４を配置するための基準点２２ｃを説明の便宜上備えるもので、円形の中心が基準点２２ｃである。
　なお図１の例では、第２の面ファスナー部材２０の基板２２の直径は、第１の面ファスナー部材１０の基板１２の直径よりも大きくしてあるが、逆に第２の面ファスナー部材２０の基板２２の直径よりも小さくても良いし、図２の例のように第２の面ファスナー部材２０の基板２２の直径と同じであっても良い。As shown in FIGS. 5 and 6, thesubstrate 22 of the second hook-and-loop fastener member 20 has a flat plate shape and a circular outer shape like thesubstrate 12 of the first hook-and-loop fastener member 10. Thesubstrate 22 is provided with areference point 22c for arranging themeshing element group 24 for convenience of explanation, and the center of the circle is thereference point 22c.
In the example of FIG. 1, the diameter of thesubstrate 22 of the second hook-and-loop fastener member 20 is larger than the diameter of thesubstrate 12 of the first hook-and-loop fastener member 10, but conversely the second hook-and-loop fastener member 20. The diameter may be smaller than the diameter of thesubstrate 22, or may be the same as the diameter of thesubstrate 22 of the second hook-and-loop fastener member 20 as in the example of FIG. 2.

　第１の面ファスナー部材１０の噛合素子群１４は図３、４に示すように、多数の噛合素子１５の集合であり、基板１２の中心部よりも半径方向外側に多数の噛合素子１５を同心円状に配列したものである。図示の例では、全ての噛合素子１５は、中心を共有し、半径の異なる４つの仮想の円の円周上に配列されている。説明の便宜上、半径方向に関して最も内側の円の円周上に配列された噛合素子１５の集まりを第１集団と称し、残りの各円の円周上に配列された噛合素子１５の集まりを、第１集団に対して半径方向に近い方から順に、第２、第３、第４集団と称する。As shown in FIGS. 3 and 4, theengagement element group 14 of the first hook-and-loop fastener member 10 is a set of a large number ofengagement elements 15, and theengagement elements 15 are concentrically arranged radially outward from the center portion of thesubstrate 12. Are arranged in a shape. In the illustrated example, all themeshing elements 15 share the center and are arranged on the circumference of four virtual circles having different radii. For convenience of explanation, a group of the meshingelements 15 arranged on the circumference of the innermost circle in the radial direction is referred to as a first group, and a group of the meshingelements 15 arranged on the circumference of each remaining circle is The first group is referred to as a second group, a third group, and a fourth group in order from the radial direction.

　第１の面ファスナー部材１０の全ての噛合素子１５は同じ形態をしている。噛合素子１５は、基板１２の対向面からその厚み方向に突出する柱状（より詳しくは円柱状）の柱部１５ａ、柱部１５ａの先端から柱部１５ａの延長方向に対して交差する方向および前記延長方向に突出する頭部１５ｈを備えるものである。柱部１５ａの延長方向に対して交差する方向とは、本実施形態では、柱部１５ａが円柱状であるので、柱部１５ａの半径方向外側とも言える。噛合素子１５は基板１２側を中心にして倒れるように弾性変形可能なものである。また頭部１５ｈは、図示の例では、半球状である。したがって図示の例では、頭部１５ｈの直径Ｄ１５ｈは、半球状の頂部側と基板１２側とでは異なることになるが、ここでの頭部の直径Ｄ１５ｈとは、最も長い直径のことであり、基板１２側の部分（半球の底面の外周部分）の直径である。また頭部１５ｈは、半球状の底面の中心部に柱部１５ａが配置されている。
　また第１～第４の各集団を構成する複数の噛合素子１５は、円周方向に等間隔あけて配列されている。また隣り合う２つの集団の半径方向の間隔は、いずれも均等にしてある。なお隣り合う２つの集団の半径方向の間隔は、頭部１５ｈ，１５ｈ同士よりも柱部１５ａ，１５ａ同士の方が広くなっている。ちなみに図３の例では、隣り合う２つの集団の半径方向の間隔のうち柱部１５ａ，１５ａ同士の間隔とは、半径方向内側の集団を構成する複数の噛合素子１５の柱部１５ａの外接円Ｃ１と、半径方向外側の集団を構成する複数の噛合素子１５の柱部１５ａの内接円Ｃ２との間隔Ｗ１であり、この間隔Ｗ１は、噛合素子１５の柱部１５ａの直径Ｄ１５ａと同じ長さである。All theengaging elements 15 of the first hook-and-loop fastener member 10 have the same form. Theengagement element 15 has a columnar (more specifically, a columnar)columnar portion 15a protruding in the thickness direction from the opposing surface of thesubstrate 12, a direction intersecting the extending direction of thecolumnar portion 15a from the tip of thecolumnar portion 15a, and the aforementionedA head portion 15h protruding in the extending direction is provided. In the present embodiment, the direction intersecting with the extending direction of thecolumn portion 15a can be said to be the radially outer side of thecolumn portion 15a because thecolumn portion 15a is cylindrical. The meshingelement 15 can be elastically deformed so as to fall around thesubstrate 12 side. Thehead 15h is hemispherical in the illustrated example. Therefore, in the illustrated example, the diameter D15h of thehead portion 15h is different between the hemispherical top side and thesubstrate 12 side, but the head diameter D15h here is the longest diameter, This is the diameter of the portion on thesubstrate 12 side (the outer peripheral portion of the bottom surface of the hemisphere). Thehead portion 15h has acolumn portion 15a disposed at the center of the hemispherical bottom surface.
The plurality of meshingelements 15 constituting each of the first to fourth groups are arranged at equal intervals in the circumferential direction. The intervals between two adjacent groups in the radial direction are all equal. In addition, as for the space | interval of the radial direction of two adjacent groups,column part 15a, 15a is wider thanhead 15h, 15h. Incidentally, in the example of FIG. 3, the interval between thecolumn portions 15 a and 15 a among the intervals in the radial direction of two adjacent groups is the circumscribed circle of thecolumn portions 15 a of the plurality of meshingelements 15 constituting the group inside in the radial direction. The distance W1 between C1 and the inscribed circle C2 of thepillar portions 15a of the plurality of meshingelements 15 constituting the radially outer group, and this distance W1 is the same length as the diameter D15a of thepillar portions 15a of the meshingelements 15 That's it.

　第２の面ファスナー部材２０の噛合素子群２４も図５、６に示すように多数の噛合素子２５の集合であり、噛合素子２５の配列以外、第１の面ファスナー部材１０の噛合素子群１４と同じである。
　第２の面ファスナー部材２０の噛合素子群２４は、基板２２の中心部よりも半径方向外側に多数の噛合素子２５を同心円状に配列した点では、第１の面ファスナー部材１０の噛合素子群１４と同じである。また図示の例では、全ての噛合素子２５は、中心を共有し、半径の異なる４つの仮想の円の円周上に配列されている。したがって第２の面ファスナー部材２０の噛合素子群２４も４つの集団より構成される。そして説明の便宜上、半径方向に関して最も内側の円の円周上に配列された噛合素子１５の集まりを第１集団と称し、残りの各円の円周上に配列された噛合素子１５の集まりを、第１集団から半径方向に近い方から順に、第２、第３、第４集団と称する。
　また第２の面ファスナー部材２０の噛合素子群２４を構成する４つの集団は、第１の面ファスナー部材１０の噛合素子群１４を構成する４つの集団と比べて、たがいの基準点２２ｃ、１２ｃに対する配列（距離）の点では、相違している。つまり第２の面ファスナー部材２０の噛合素子群２４と第１の面ファスナー部材１０の噛合素子群１４とが、互いの基準点１２ｃ、２２ｃを一致させた状態で連結された状態を想定すると、第２の面ファスナー部材２０の半径方向に隣り合う集団の間に、第１の面ファスナー部材１０の一つの集団が配置される。より詳しく言えば第１の面ファスナー部材１０の第４集団と第３集団の間に、第２の面ファスナー部材１０の第４集団が配置される。また第２の面ファスナー部材２０の第１集団は、第１の面ファスナー部材１０の第１集団よりも半径方向内側（当該第１集団と後述の突起部１６との間）に配列される。The meshingelement group 24 of the second hook-and-loop fastener member 20 is also a set of many meshingelements 25 as shown in FIGS. 5 and 6, and themeshing element group 14 of the first hook-and-loop fastener member 10 except for the arrangement of the meshingelements 25. Is the same.
The meshingelement group 24 of the second hook-and-loop fastener member 20 is a meshing element group of the first hook-and-loop fastener member 10 in that a large number of meshingelements 25 are arranged concentrically outside the central portion of thesubstrate 22. 14 is the same. In the illustrated example, all themeshing elements 25 share the center and are arranged on the circumference of four virtual circles having different radii. Therefore, the meshingelement group 24 of the second hook-and-loop fastener member 20 is also composed of four groups. For convenience of explanation, a group of meshingelements 15 arranged on the circumference of the innermost circle in the radial direction is referred to as a first group, and a group of meshingelements 15 arranged on the circumference of each remaining circle is referred to as a first group. These are referred to as second, third, and fourth groups in order from the first group in the radial direction.
Further, the four groups constituting the meshingelement group 24 of the second hook-and-loop fastener member 20 are compared with the four groups constituting the meshingelement group 14 of the first hook-and-loop fastener member 10, and thereference points 22 c and 12 c of each other. Is different in terms of the arrangement (distance) for. That is, assuming a state in which themeshing element group 24 of the second hook-and-loop fastener member 20 and themeshing element group 14 of the first hook-and-loop fastener member 10 are connected in a state where thereference points 12c and 22c are aligned with each other, One group of the first hook-and-loop fastener members 10 is disposed between the groups of the second hook-and-loop fastener members 20 adjacent to each other in the radial direction. More specifically, the fourth group of second hook-and-loop fastener members 10 is arranged between the fourth group and the third group of first hook-and-loop fastener members 10. The first group of second hook-and-loop fastener members 20 is arranged radially inward (between the first group and aprotrusion 16 described later) with respect to the first group of first hook-and-loop fastener members 10.

　第２の面ファスナー部材２０の全ての噛合素子２５は、第１の面ファスナー部材１０の噛合素子１５と同じ形態である。したがって噛合素子２５は、柱部２５ａ、頭部２５ｈを備え、基板１２側を中心にして倒れるように弾性変形可能なものである。All theengaging elements 25 of the second hook-and-loop fastener member 20 have the same form as theengaging elements 15 of the first hook-and-loop fastener member 10. Therefore, the meshingelement 25 includes acolumn part 25a and ahead part 25h, and can be elastically deformed so as to fall around thesubstrate 12 side.

　また第１、第２の面ファスナー部材１０，２０は、互いの基準点１２ｃ、２２ｃを殆ど一致させた状態で連結するために、専用の構成部分をそれぞれ有する。The first and second hook-and-loop fastener members 10 and 20 each have a dedicated component for connecting thereference points 12c and 22c so that thereference points 12c and 22c are almost coincident with each other.

　第１の面ファスナー部材１０は図３、４に示すように、基板１２と噛合素子群１４の他に、噛合素子群１４の内側であって基板１２の対向面の中心部から噛合素子群１４よりも突出する突起部１６と、噛合素子群１４のうち第１集団（半径方向に関して最も内側の円周上に位置する複数の噛合素子１５）と突起部１６によって、それらの半径方向の間に形成される収容凹部１８とを備える。As shown in FIGS. 3 and 4, the first hook-and-loop fastener member 10, in addition to thesubstrate 12 and theengagement element group 14, is located inside theengagement element group 14 and from the center of the opposing surface of thesubstrate 12. Theprotrusion 16 that protrudes further, and the first group of the engagement element group 14 (a plurality ofengagement elements 15 located on the innermost circumference with respect to the radial direction) and theprotrusion 16, between the radial directions. And ahousing recess 18 to be formed.

　突起部１６は、基板１２の対向面の中心部に基準点１２ｃに対して同心状に形成されると共に、円柱状である。また突起部１６は、先部の外周部、つまり先端面１６ａと側面１６ｂとが交差する角部１６ｃを面取りした形状である。より詳しくは角部１６ｃは、基板１２側から先端へ向かうにつれて徐々に直径を狭めるようにしてあるもので、図３の例では、その外面を円弧状に膨らむ曲面としてある。
　突起部１６の先端面１６ａは、基板１２の対向面と平行な平面であって、円形状である。この突起部１６の先端面１６ａは、第１、第２の面ファスナー部材１０，２０を連結するときに、第２の面ファスナー部材２０の噛合素子群２４の中に入らないようにするために、第２の面ファスナー部材２０の中心部よりも半径方向外側の領域において隣り合う噛合素子２５同士の最短距離よりも、長い円形状にしてある。より具体的には、第２の面ファスナー部材２０の中心部よりも半径方向外側の領域において円周方向と半径方向に隣り合う３つまたは４つの噛合素子２５で囲まれる間の領域よりも、大きな円形状にしてある。これにより第１、第２の面ファスナー部材を連結し易くなる。
　なお突起部１６の側面１６ｂは、基準点１２ｃに対して同心状の円筒面である。Theprotrusion 16 is formed concentrically with respect to thereference point 12c at the center of the opposing surface of thesubstrate 12, and has a cylindrical shape. Theprotrusion 16 has a chamferedcorner portion 16c where the outer peripheral portion of the tip portion, that is, thetip surface 16a and theside surface 16b intersect. More specifically, thecorner 16c has a diameter that gradually decreases from thesubstrate 12 side toward the tip. In the example of FIG. 3, the outer surface is a curved surface that swells in an arc.
Thetip end surface 16 a of theprotrusion 16 is a plane parallel to the facing surface of thesubstrate 12 and has a circular shape. In order to prevent thefront end surface 16a of theprotrusion 16 from entering theengagement element group 24 of the secondsurface fastener member 20 when the first and secondsurface fastener members 10 and 20 are connected. The second hook-and-loop fastener member 20 has a circular shape that is longer than the shortest distance between adjacent meshingelements 25 in a region radially outward from the center of the second hook-and-loop fastener member 20. More specifically, in a region radially outer than the center portion of the second hook-and-loop fastener member 20, in a region surrounded by three or four meshingelements 25 adjacent in the circumferential direction and the radial direction, It has a large circular shape. This makes it easy to connect the first and second hook-and-loop fastener members.
Theside surface 16b of theprotrusion 16 is a cylindrical surface concentric with thereference point 12c.

　突起部１６、噛合素子１５、噛合素子群１４は、基板１２からの突出長さ（基板１２の厚み方向に延長する長さであって、以下、「突出長さ」という。）を以下のようにしてある。
　噛合素子１５の突出長さＬ１５は、図３，４の例では基板１２の厚み１２ｔよりも僅かに長くしてある。柱部１５ａの突出長さＬ１５ａは、頭部１５ｈの突出長さＬ１５ｈよりも長くしてある。なお、噛合素子１５の突出長さＬ１５とは、基板１２の対向面から噛合素子１５の突出方向先端までの長さであり、柱部１５ａの突出長さＬ１５ａとは、基板１２の対向面から柱部１５ａと頭部１５ｈの境界までの長さであり、頭部１５ｈの突出長さＬ１５ｈとは、柱部１５ａと頭部１５ｈの境界から噛合素子１５の突出方向先端までの長さである。また噛合素子群１４の突出長さとは、全ての噛合素子１５の中で、最も長い突出長さのことであり、本実施形態では、全ての噛合素子１５が同じ突出長さであるので、噛合素子１５の突出長さと同一である。
　突起部１６の突出長さＬ１６は、噛合素子群１４の基板１２からの突出長さよりも長い。また突起部１６の突出長さＬ１６は、基板１２の厚み１２ｔと噛合素子１５の突出長さＬ１５を合わせた合計値以下であって、噛合素子１５の突出長さＬ１５の二倍以上にしてある。突起部１６の突出長さＬ１６とは、基板１２の対向面から突起部１６の突出方向の先端までの長さである。図示の例では、突起部１６の突出長さＬ１６は、噛合素子１５の突出長さＬ１５の二倍よりも長い。また、図７に示す通り、第１及び第２の面ファスナー部材の連結状態において、突起部１６の先端面１６ａは、第２の面ファスナー部材の噛合素子２５が突出する基板２２の上面位置よりも下方に突出し、第２の面ファスナー部材の噛合素子２５が突出する基板２２の下面（基板２２の上面とは反対側の面）の位置からは突出しない。Theprotrusion 16, the meshingelement 15, and themeshing element group 14 have a protruding length from the substrate 12 (the length extending in the thickness direction of thesubstrate 12, hereinafter referred to as “projecting length”) as follows. It is.
The protrusion length L15 of the meshingelement 15 is slightly longer than thethickness 12t of thesubstrate 12 in the examples of FIGS. The protruding length L15a of thecolumn portion 15a is longer than the protruding length L15h of thehead portion 15h. The protrusion length L15 of theengagement element 15 is the length from the facing surface of thesubstrate 12 to the tip of theengagement element 15 in the protrusion direction, and the protrusion length L15a of thecolumn portion 15a is the distance from the opposite surface of thesubstrate 12. The length to the boundary between thecolumn portion 15a and thehead portion 15h, and the protruding length L15h of thehead portion 15h is the length from the boundary between thecolumn portion 15a and thehead portion 15h to the tip of theengagement element 15 in the protruding direction. . The protruding length of the meshingelement group 14 is the longest protruding length among all themeshing elements 15. In this embodiment, all themeshing elements 15 have the same protruding length. It is the same as the protruding length of theelement 15.
The protruding length L16 of theprotrusion 16 is longer than the protruding length of the meshingelement group 14 from thesubstrate 12. The protrusion length L16 of theprotrusion 16 is equal to or less than the total value of thethickness 12t of thesubstrate 12 and the protrusion length L15 of theengagement element 15, and more than twice the protrusion length L15 of theengagement element 15. . The protrusion length L16 of theprotrusion 16 is the length from the facing surface of thesubstrate 12 to the tip of theprotrusion 16 in the protrusion direction. In the illustrated example, the protruding length L16 of the protrudingportion 16 is longer than twice the protruding length L15 of the meshingelement 15. Further, as shown in FIG. 7, in the connected state of the first and second hook-and-loop fastener members, thefront end surface 16a of theprotrusion 16 is from the position of the upper surface of thesubstrate 22 from which theengagement element 25 of the second hook-and-loop member protrudes. Also protrudes downward and does not protrude from the position of the lower surface of the substrate 22 (surface opposite to the upper surface of the substrate 22) from which theengagement element 25 of the second surface fastener member protrudes.

　収容凹部１８は、突起部１６の突出方向に開口する円筒状の空間部であり、その内周側は突起部１６の外周面によって区画され、その外周側は、第１集団を構成する複数の噛合素子１５によって、円周方向を等間隔おきに区画されると共に、円周方向に隣り合う噛合素子１５，１５の間を半径方向外側に開口している。Thehousing recess 18 is a cylindrical space that opens in the projecting direction of theprotrusion 16, and the inner periphery thereof is partitioned by the outer periphery of theprotrusion 16, and the outer periphery includes a plurality of members constituting the first group. The meshingelement 15 divides the circumferential direction at equal intervals, and opens between the meshingelements 15, 15 adjacent in the circumferential direction outward in the radial direction.

　収容凹部１８は、半径方向の間隔、つまり突起部１６と第１集団の噛合素子１５の間隔に関して、以下のようになっている。突起部１６と噛合素子１５の頭部１５ｈとの間隔Ｗ１８ｈは、最も狭い部分では、柱部１５ａの直径よりも広く、頭部１５ｈの直径よりも狭くなっている。また突起部１６と噛合素子１５の柱部１５ａとの間隔Ｗ１８ａは、柱部１５ａの直径Ｄ１５ａよりも広く、頭部１５ｈの直径Ｄ１５ｈよりも狭くしてある。したがって収容凹部１８の内周面を形成する突起部１６と、収容凹部１８の外周面を形成する噛合素子１５の柱部１５ａとの間には、第２の面ファスナー部材２０の噛合素子２５の頭部２５ｈは寸法上では嵌ることができず、円周方向に隣り合う２つの噛合素子１５，１５と突起部１６との間に、通常嵌る。Theaccommodating recess 18 is as follows with respect to the radial interval, that is, the interval between theprotrusion 16 and the first group of meshingelements 15. The space W18h between theprotrusion 16 and thehead portion 15h of the meshingelement 15 is wider than the diameter of thecolumn portion 15a and narrower than the diameter of thehead portion 15h in the narrowest portion. The interval W18a between theprotrusion 16 and thecolumn 15a of the meshingelement 15 is wider than the diameter D15a of thecolumn 15a and smaller than the diameter D15h of thehead 15h. Therefore, theengagement element 25 of the second hook-and-loop fastener member 20 is interposed between theprotrusion 16 that forms the inner peripheral surface of theaccommodation recess 18 and thecolumn portion 15a of theengagement element 15 that forms the outer periphery of theaccommodation recess 18. Thehead 25 h cannot be fitted in size, and is usually fitted between the two meshingelements 15, 15 adjacent to the circumferential direction and theprotrusion 16.

　第２の面ファスナー部材２０は図５，６に示すように、基板２２に突起部１６の先部を収容する穴部２８を備える。
　穴部２８は、基板２２の対向面の中心部に基準点２２ｃに対して同心状に形成されると共に、図示の例では基板２２の厚み方向に貫通する穴である。穴部２８の内面は、突起部１６の形状に対応させた形状、より詳しくは突起部１６のうち先部よりも基板１２側の部分の形状に対応させた円筒面である。また穴部２８は、その深さ方向のうち噛合素子群２４側の端部、つまり基板２２の対向面と穴部２８の円筒面とが交差する角部２８ｃを面取りした形状である。より詳しくは角部２８ｃは、基板２２の対向面側へ向かうにつれて徐々に直径を広げるようにしてあるもので、図示の例では、その内面を円弧状に膨らむ曲面としてある。
　また穴部２８の直径Ｄ２８（角部２８ｃ以外の部分の直径）は図２に示すように、突起部１６の直径Ｄ１６（角部１６ｃ以外の部分の直径）よりも僅かに長い。より詳しくは、穴部２８の直径Ｄ２８と突起部の直径Ｄ１６との差は、第１、第２の面ファスナー部材１０，２０の前記柱部１５ａ、２５ａの直径Ｄ１５ａ、Ｄ２５ａよりも小さい。As shown in FIGS. 5 and 6, the second hook-and-loop fastener member 20 includes ahole portion 28 that accommodates the tip portion of the protrudingportion 16 in thesubstrate 22.
Thehole 28 is a hole formed concentrically with respect to thereference point 22 c at the center of the opposing surface of thesubstrate 22, and penetrates in the thickness direction of thesubstrate 22 in the illustrated example. The inner surface of thehole 28 is a cylindrical surface corresponding to the shape corresponding to the shape of theprotrusion 16, more specifically, the shape of the portion of theprotrusion 16 closer to thesubstrate 12 than the tip. Further, thehole portion 28 has a shape in which acorner portion 28 c where the end portion on the side of the meshingelement group 24 in the depth direction, that is, the opposite surface of thesubstrate 22 intersects the cylindrical surface of thehole portion 28 is chamfered. More specifically, thecorner portion 28c gradually increases in diameter toward the opposite surface side of thesubstrate 22, and in the illustrated example, the inner surface is a curved surface that swells in an arc shape.
Further, as shown in FIG. 2, the diameter D28 of the hole portion 28 (the diameter of the portion other than thecorner portion 28c) is slightly longer than the diameter D16 of the projection portion 16 (the diameter of the portion other than thecorner portion 16c). More specifically, the difference between the diameter D28 of thehole 28 and the diameter D16 of the protrusion is smaller than the diameters D15a and D25a of thepillars 15a and 25a of the first and second hook-and-loop fastener members 10 and 20.

　また第２の面ファスナー部材２０の噛合素子群２４は、第１の集団（半径方向に関して最も内側の円周上に位置する複数の噛合素子２５）を、突起部１６を穴部２８へ向かって移動可能に案内すると共に収容凹部１８に収容される案内部２６として兼用する。
　案内部２６の内接円２６ａの半径Ｒ２６は図２に示すように、突起部１６の半径Ｒ１６よりも僅かに大きい。そして案内部２６の内接円２６ａの半径Ｒ２６と突起部１６の半径Ｒ１６との差ΔＸは、たとえば柱部１５ａ，２５ａの直径Ｄ１５ａ，Ｄ２５ａ、より望ましくは柱部１５ａ，２５ａの半径よりも小さい。したがって案内部２６の内接円２６ａの直径Ｄ２６は、突起部１６の直径Ｄ１６よりも僅かに長いものであり、案内部２６の内接円２６ａの直径Ｄ２６と突起部１６の直径Ｄ１６との差は、第１、第２の面ファスナー部材１０，２０の前記柱部１５ａ、２５ａの直径Ｄ１５ａ、Ｄ２５ａよりも小さい。
　ちなみに案内部２６の内接円２６ａとは図５に示すように、第１の集団を構成する全ての噛合素子２５の頭部２５ｈの半径方向内側に接する円である。いっぽう案内部２６の外接円２６ｂとは、第１の集団を構成する全ての噛合素子２５の頭部２５ｈの半径方向外側に接する円である。
　また案内部２６の外接円２６ｂの直径は図３に示すように、仮想の円Ｃ３の直径であって、第１の面ファスナー部材１０の収容凹部１８の外周を形成する複数の噛合素子１５、つまり第１集団を形成する全ての噛合素子１５の中心（柱部１５ａの半径方向の中心）を通過する仮想の円Ｃ３の直径よりも、小さい。そして案内部２６の内接円２６ａの半径Ｒ２６と突起部１６の半径Ｒ１６との差ΔＸは図２に示すように、仮想の円Ｃ３の半径と案内部２６の外接円２６ｂの半径との差ΔＹと同じにしてある。また仮想の円Ｃ３の半径と案内部２６の外接円２６ｂの半径との差ΔＹは、穴部２８の直径Ｄ２８と突起部１６の直径Ｄ１６との差よりも大きい。Further, the meshingelement group 24 of the second hook-and-loop fastener member 20 includes the first group (a plurality of meshingelements 25 positioned on the innermost circumference in the radial direction) and theprotrusion 16 toward thehole 28. It is also used as aguide portion 26 that guides it so as to be movable and is accommodated in theaccommodating recess 18.
The radius R26 of the inscribedcircle 26a of theguide portion 26 is slightly larger than the radius R16 of theprotrusion 16 as shown in FIG. The difference ΔX between the radius R26 of the inscribedcircle 26a of theguide portion 26 and the radius R16 of theprojection portion 16 is, for example, smaller than the diameters D15a and D25a of thecolumn portions 15a and 25a, more preferably the radii of thecolumn portions 15a and 25a. . Therefore, the diameter D26 of the inscribedcircle 26a of theguide portion 26 is slightly longer than the diameter D16 of theprojection portion 16, and the difference between the diameter D26 of the inscribedcircle 26a of theguide portion 26 and the diameter D16 of theprojection portion 16 is as follows. The diameters D15a and D25a of thecolumn portions 15a and 25a of the first and second hook-and-loop fastener members 10 and 20 are smaller.
Incidentally, the inscribedcircle 26a of theguide portion 26 is a circle in contact with the inner side in the radial direction of theheads 25h of all themeshing elements 25 constituting the first group, as shown in FIG. On the other hand, the circumscribedcircle 26b of theguide portion 26 is a circle that is in contact with the outer side in the radial direction of theheads 25h of all themeshing elements 25 constituting the first group.
Further, as shown in FIG. 3, the diameter of the circumscribedcircle 26 b of theguide portion 26 is the diameter of a virtual circle C <b> 3, and a plurality of meshingelements 15 that form the outer periphery of thehousing recess 18 of the first hook-and-loop fastener member 10 That is, it is smaller than the diameter of the imaginary circle C3 passing through the center of all themeshing elements 15 forming the first group (the center in the radial direction of thecolumn portion 15a). The difference ΔX between the radius R26 of the inscribedcircle 26a of theguide portion 26 and the radius R16 of theprojection portion 16 is the difference between the radius of the virtual circle C3 and the radius of the circumscribedcircle 26b of theguide portion 26, as shown in FIG. Same as ΔY. The difference ΔY between the radius of the virtual circle C3 and the radius of the circumscribedcircle 26b of theguide portion 26 is larger than the difference between the diameter D28 of thehole portion 28 and the diameter D16 of theprojection portion 16.

　案内部２６の内接円２６ａの直径Ｄ２６と突起部１６の直径Ｄ１６との差は、穴部２８よりも半径方向外側において隣り合う噛合素子２５，２５の最短距離よりも小さい。図示の例では、隣り合う噛合素子２５，２５の最短距離とは、半径方向に隣り合う噛合素子２５，２５の頭部２５ｈ，２５ｈ同士の距離である。言い換えれば隣り合う集団のうち半径方向内側の集団における外接円と、半径方向外側の集団における内接円との半径方向の距離である。The difference between the diameter D26 of the inscribedcircle 26a of theguide portion 26 and the diameter D16 of theprojection portion 16 is smaller than the shortest distance between the meshingelements 25, 25 adjacent to each other on the radially outer side of thehole portion 28. In the illustrated example, the shortest distance between theadjacent meshing elements 25 and 25 is the distance between theheads 25h and 25h of the meshingelements 25 and 25 adjacent in the radial direction. In other words, it is the radial distance between the circumscribed circle in the inner group in the radial direction and the inscribed circle in the outer group in the radial direction.

　上記した第一実施形態の面ファスナー１は、以下の１）～６）のようにして連結する。
　１）第１、第２の面ファスナー部材１０，２０を互いの基板１２，２２の厚み方向に間隔をあけて対向させる。
　２）第１の面ファスナー部材１０の突起部１６と第２の面ファスナー部材２０の穴部２８に差し込むことを目的として、第１、第２の面ファスナー部材１０，２０を相対的に接近させる。
　３）相対的に接近させたときに、第１、第２の面ファスナー部材１０，２０の互いの中心である基準点１２ｃ、２２ｃが少しずれていると、突起部１６の先端面１６ａが第２の面ファスナー部材２０の案内部２６の半径方向内側に嵌らず、突起部１６の先端面１６ａが第２の面ファスナー部材２０の噛合素子群２４の頭部２５ｈの表面に接触した不安定な状態となる。そしてこの不安定な状態を解消するために、第１、第２の面ファスナー部材１０，２０同士を相対的に突起部１６の突出方向に直交する方向に動かして、第１、第２の面ファスナー部材１０，２０の互いの基準点１２ｃ、２２ｃがほぼ一致すると、突起部１６の先端面１６ａが案内部２６の半径方向内側に案内され、突起部１６の先部が案内部２６の半径方向内側に入っていく。このとき、突起部１６の角部１６ｃを面取りした形状にしてあるので、突起部１６が案内部２６の半径方向内側に入り易くなる。また、案内部２６を兼用する噛合素子２５は、その頭部２５ｈが半球状であるため、突起部１６が案内部２６の半径方向内側に入り易くなる。
　４）さらに第１、第２の面ファスナー部材１０，２０を相対的に接近させると、突起部１６の側面１６ｂが案内部２６の半径方向内側に案内され、突起部１６の先端面１６ａが穴部２８に接近する。
　５）さらに第１、第２の面ファスナー部材１０，２０を相対的に接近させると、突起部１６の角部１６ｃと穴部２８の角部２８ｃとが互いに面取りした形状であることから、突起部１６が穴部２８の中に滑らかに案内され、突起部１６が穴部２８に少し入った後に、第１、第２の面ファスナー部材１０，２０の噛合素子１５，２５が頭部１５ｈ、２５ｈ同士で接触する。
　６）さらに第１、第２の面ファスナー部材１０，２０を相対的に接近させると、噛合素子１５，２５が基板１２，２２側を中心にして瞬間的に倒れるように弾性変形し、第１の面ファスナー部材１０の噛合素子１５の頭部１５ｈが、第２の面ファスナー部材２０の噛合素子２５の頭部２５ｈを相対的に乗り越えて、復元力によって噛合素子１５，２５が元の形状に戻ろうとして、噛合素子群１４，２４同士が頭部１５ｈ，２５ｈにおいて噛合する。またそれとほぼ同時に、穴部２８に突起部１６が深く嵌る。このようにして第１、第２の面ファスナー部材１０，２０が連結し、面ファスナー１が連結した状態となる。
　なお連結した面ファスナー１に対して、第１、第２の面ファスナー部材１０，２０を互いの基板１２，２２の厚み方向に相対的に離隔させれば、噛合素子群１４，２４同士の噛合が解除され、第１、第２の面ファスナー部材１０，２０が分離する。しかもこれら基板１２，２２は平板状であるため、撓み易い。従って第１、第２の面ファスナー部材１０，２０を互いの基板１２，２２の厚み方向に相対的に離隔させた際には、基板１２，２２同士が撓むことによって噛合素子群１４，２４同士の噛合が解除され易くなり、第１、第２の面ファスナー部材１０，２０が分離し易い。The hook-and-loop fastener 1 of the first embodiment described above is connected as follows 1) to 6).
1) The first and second hook-and-loop fastener members 10 and 20 are opposed to each other with a space in the thickness direction of thesubstrates 12 and 22.
2) The first and second hook-and-loop fastener members 10 and 20 are relatively brought closer to each other for the purpose of being inserted into theprotrusion 16 of the first hook-and-loop fastener member 10 and thehole 28 of the second hook-and-loop fastener member 20. .
3) When thereference points 12c and 22c that are the centers of the first and second hook-and-loop fastener members 10 and 20 are slightly shifted when they are relatively close to each other, thetip end surface 16a of theprotrusion 16 is Instability in which thefront end surface 16a of theprotrusion 16 is in contact with the surface of thehead 25h of the meshingelement group 24 of the secondsurface fastener member 20 without being fitted inside theguide portion 26 of the secondsurface fastener member 20 in the radial direction. It becomes a state. In order to eliminate this unstable state, the first and secondsurface fastener members 10 and 20 are moved relative to each other in a direction perpendicular to the protruding direction of the protrudingportion 16, and the first and second surfaces are moved. When thereference points 12c and 22c of thefastener members 10 and 20 substantially coincide with each other, thefront end surface 16a of theprotrusion 16 is guided inward in the radial direction of theguide 26, and the tip of theprotrusion 16 is in the radial direction of theguide 26. Go inside. At this time, since thecorner portion 16c of theprotrusion portion 16 is chamfered, theprotrusion portion 16 can easily enter the inside of theguide portion 26 in the radial direction. Further, the meshingelement 25 that also serves as theguide portion 26 has ahemispherical head portion 25 h, so that the protrudingportion 16 can easily enter the inside of theguide portion 26 in the radial direction.
4) When the first and second hook-and-loop fastener members 10 and 20 are further moved closer to each other, theside surface 16b of theprojection 16 is guided radially inward of theguide 26, and thetip 16a of theprojection 16 is a hole.Approach part 28.
5) Further, when the first and second hook-and-loop fastener members 10 and 20 are relatively moved closer, thecorner portion 16c of theprojection portion 16 and thecorner portion 28c of thehole portion 28 are chamfered with each other. After thepart 16 is smoothly guided into thehole 28 and theprotrusion 16 slightly enters thehole 28, the meshingelements 15 and 25 of the first and second hook-and-loop fastener members 10 and 20 are connected to thehead 15h, Contact with each other for 25 hours.
6) Further, when the first and second hook-and-loop fastener members 10 and 20 are relatively moved closer, the meshingelements 15 and 25 are elastically deformed so as to be instantaneously tilted around thesubstrates 12 and 22 side, and the first Thehead 15h of theengagement element 15 of the hook-and-loop fastener member 10 moves over thehead 25h of theengagement element 25 of the second hook-and-loop fastener member 20 relatively, and theengagement elements 15 and 25 are restored to the original shape by the restoring force. In an attempt to return, the meshingelement groups 14 and 24 mesh at theheads 15h and 25h. At substantially the same time, theprotrusion 16 is deeply fitted into thehole 28. In this way, the first and second hook-and-loop fastener members 10 and 20 are connected, and the hook-and-loop fastener 1 is connected.
If the first and second hook-and-loop fastener members 10 and 20 are relatively separated from each other in the thickness direction of thesubstrates 12 and 22 with respect to the connected hook-and-loop fastener 1, the meshingelement groups 14 and 24 are engaged with each other. Is released, and the first and second hook-and-loop fastener members 10 and 20 are separated. Moreover, since thesubstrates 12 and 22 are flat, they are easily bent. Therefore, when the first and second hook-and-loop fastener members 10 and 20 are relatively separated from each other in the thickness direction of thesubstrates 12 and 22, the meshingelement groups 14 and 24 are caused by thesubstrates 12 and 22 being bent. The meshing between the first and second hook-and-loop fastener members 10 and 20 is easily separated.

　上記した第一実施形態の面ファスナー１は上記した以外に、以下の効果を有する。
　第２の面ファスナー部材２０の噛合素子群２４のうち第１の集団（半径方向に関して最も内側に位置する全ての噛合素子２５）が案内部２６として機能し、その案内部２６が突起部１６を穴部２８へ向かって移動可能に案内するので、突起部を第２の面ファスナー部材の穴部に挿入し易くなる。In addition to the above, the hook-and-loop fastener 1 of the first embodiment described above has the following effects.
Of the meshingelement group 24 of the second hook-and-loop fastener member 20, the first group (all themeshing elements 25 positioned on the innermost side in the radial direction) functions as theguide part 26, and theguide part 26 defines theprotrusion 16. Since it guides so that it can move toward thehole part 28, it becomes easy to insert a projection part into the hole part of a 2nd surface fastener member.

　また案内部２６の内接円２６ａの直径Ｄ２６と突起部１６の直径Ｄ１６との差２ΔＸは、第１、第２の面ファスナー部材１０，２０の柱部１５ａ、２５ａの直径Ｄ１５ａ、Ｄ２５ａよりも小さい。このように案内部２６の内接円２６ａの直径Ｄ２６が突起部１６の直径Ｄ１６よりも僅かに長いので、第１、第２の面ファスナー部材１０，２０の基準点１２ｃ、２２ｃである中心同士が殆ど一致したまま、突起部１６が穴部２８の半径方向内側に案内され、突起部１６を穴部２８に差し込み易くなる。The difference 2ΔX between the diameter D26 of the inscribedcircle 26a of theguide portion 26 and the diameter D16 of theprotrusion 16 is larger than the diameters D15a and D25a of thecolumn portions 15a and 25a of the first and second hook-and-loop fastener members 10 and 20. small. Thus, since the diameter D26 of the inscribedcircle 26a of theguide portion 26 is slightly longer than the diameter D16 of theprojection portion 16, the centers that are thereference points 12c and 22c of the first and second hook-and-loop fastener members 10 and 20 are formed. Theprojections 16 are guided inward in the radial direction of thehole 28 while substantially matching, so that theprojection 16 can be easily inserted into thehole 28.

　しかも第１の面ファスナー部材１０の噛合素子群１４のうち第１の集団は、その半径方向内側には収容凹部１８を介して突起部１６を備えるので、たとえば収容凹部１８のない従来のようなものに比べれば、半径方向内側に倒れることも可能となり、噛合素子１５，２５同士が連結し易くなる。さらに案内部２６が収容凹部１８に収容されることによって、第１、第２の面ファスナー部材１０，１０は、半径方向の位置が定まることになり、互いの位置決め精度が向上する。Moreover, since the first group of the meshingelement group 14 of the first hook-and-loop fastener member 10 includes theprotrusions 16 via the receiving recesses 18 on the radially inner side thereof, for example, as in the conventional case without the receiving recesses 18. Compared with a thing, it also becomes possible to fall inward in the radial direction, and themeshing elements 15 and 25 are easily connected. Further, when theguide portion 26 is accommodated in theaccommodating recess 18, the first and second hook-and-loop fastener members 10 and 10 are positioned in the radial direction, and the mutual positioning accuracy is improved.

　仮想の円Ｃ３の直径が第２の面ファスナー部材２０の案内部２６における外接円２６ｂの直径よりも大きく、且つ穴部２８の直径Ｄ２８と突起部１６の直径Ｄ１６との差が仮想の円Ｃ３の半径と案内部２６の外接円２６ｂの半径との差よりも小さい。また穴部２８の直径Ｄ２８と突起部１６の直径Ｄ１６との差が第１、第２の面ファスナー部材１０，２０の柱部１５ａ，２５ａの直径よりも小さい。このように穴部２８の直径Ｄ２８が突起部１６の直径Ｄ１６よりも僅かに大きいので、突起部１６が穴部２８に差し込みやすくなると共に、第１の面ファスナー部材１０と第２の面ファスナー部材２０との位置決め精度が向上する。The diameter of the virtual circle C3 is larger than the diameter of the circumscribedcircle 26b in theguide portion 26 of the second hook-and-loop fastener member 20, and the difference between the diameter D28 of thehole 28 and the diameter D16 of theprotrusion 16 is the virtual circle C3. And the difference between the radius of the circumscribedcircle 26b of theguide portion 26 and the radius of theguide portion 26 is smaller. Further, the difference between the diameter D28 of thehole 28 and the diameter D16 of theprotrusion 16 is smaller than the diameters of thecolumn portions 15a and 25a of the first and second hook-and-loop fastener members 10 and 20. Thus, since the diameter D28 of thehole 28 is slightly larger than the diameter D16 of theprotrusion 16, theprotrusion 16 can be easily inserted into thehole 28, and the first hook-and-loop fastener member 10 and the second hook-and-loop fastener member. The positioning accuracy with respect to 20 is improved.

　上記した第一実施形態の面ファスナー１は、たとえば二枚の板を接合する用途に用いられる。これら二枚の板は、たとえば図７に示すように、自動車のボディ側を形成する外板４１と、外板４１の内側に固定される内板４２である。この場合、外板４１と内板４２を複数組の第一実施形態の面ファスナー１で固定する。そして外板４１の内面には各組の面ファスナー１における第１、第２の面ファスナー部材１０，２０のうち一方（図示の例では第１の面ファスナー部材１０）を接着あるいは溶着等して固定し、内板４２の一面には第１、第２の面ファスナー部材１０，２０のうち他方（図では第２の面ファスナー部材２０）を接着あるいは溶着等して固定する。なお第１、第２の面ファスナー部材１０，２０の固定位置は、外板４１に対して内板４２を固定する位置を想定して、設定する。The hook-and-loop fastener 1 of the first embodiment described above is used, for example, for joining two plates. For example, as shown in FIG. 7, these two plates are anouter plate 41 that forms the body side of the automobile, and aninner plate 42 that is fixed to the inner side of theouter plate 41. In this case, theouter plate 41 and theinner plate 42 are fixed by a plurality of sets of hook-and-loop fasteners 1 of the first embodiment. Then, one of the first and second hook-and-loop fastener members 10 and 20 (the first hook-and-loop fastener member 10 in the illustrated example) of each set of hook-and-loop fasteners 1 is bonded or welded to the inner surface of theouter plate 41. The other one of the first and second hook-and-loop fastener members 10 and 20 (second hook-and-loop fastener member 20 in the figure) is fixed to one surface of theinner plate 42 by bonding or welding. The fixing positions of the first and second hook-and-loop fastener members 10 and 20 are set on the assumption that theinner plate 42 is fixed to theouter plate 41.

　外板４１の内面側に内板４２を配置すると、内板４２の内面側からは各組の面ファスナー１が見えなくなるが、第１の面ファスナー部材１０の突起部１６が、噛合素子群１４よりも突出しているので、作業者は感覚を頼りに、突起部１６を案内部２６に合わせることができる。そのうえで作業者は内板４２を外板４１に押し付けるようにすれば、突起部１６を穴部２８に嵌めて第１及び第２の面ファスナー部材１０，２０の中心を正確に位置決めし、第１、第２の面ファスナー部材１０，２０の噛合素子群１４，２４同士を噛合させることができる。When theinner plate 42 is disposed on the inner surface side of theouter plate 41, each set of hook-and-loop fasteners 1 cannot be seen from the inner surface side of theinner plate 42, but theprotrusion 16 of the first hook-and-loop fastener member 10 is connected to themeshing element group 14. Therefore, the operator can fit theprotrusion 16 to theguide 26 with a sense. Then, if the operator presses theinner plate 42 against theouter plate 41, theprojection 16 is fitted in thehole 28 to accurately position the centers of the first and second hook-and-loop fastener members 10, 20, and the first The engagingelement groups 14 and 24 of the second hook-and-loop fastener members 10 and 20 can be engaged with each other.

　本発明は上記実施形態に限定されるものではなく、その趣旨を逸脱しない範囲において適宜変更可能である。例えば穴部２８は上記実施形態では、貫通する穴であったが、本発明ではこれに限らず、貫通していなくても良い。また基板１２，２２の外形は、上記実施形態では、円形であったが、本発明ではこれに限らず、円形以外の形状であっても良い。The present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, thehole portion 28 is a through-hole in the above-described embodiment, but the present invention is not limited to this and may not penetrate. Moreover, although the external shape of the board |substrates 12 and 22 was circular in the said embodiment, in this invention, not only this but shapes other than circular may be sufficient.

　１　面ファスナー
　１０　第１の面ファスナー部材
　１２　基板
　１２ｃ　基準点
　１２ｔ　基板の厚み
　１４　噛合素子群
　１５　噛合素子
　Ｌ１５　噛合素子の突出長さ
　Ｌ１５ａ　柱部の突出長さ
　Ｌ１５ｈ　頭部の突出長さ
　Ｃ１　外接円
　Ｃ２　内接円
　Ｗ１　隣り合う外接円と内接円との間隔
　１５ａ　柱部
　Ｄ１５ａ　柱部の直径
　１５ｈ　頭部
　Ｄ１５ｈ　頭部の直径
　１６　突起部
　Ｌ１６　突起部の突出長さ
　Ｄ１６　突起部の直径
　Ｒ１６　突起部の半径
　１６ａ　先端面
　１６ｂ　側面
　１６ｃ　角部
　１８　収容凹部
　Ｗ１８ａ　収容凹部の間隔（突起部と噛合素子の頭部との間隔）
　Ｗ１８ｈ　収容凹部の間隔（突起部と噛合素子の柱部との間隔）
　Ｃ３　仮想の円
　２０　第２の面ファスナー部材
　２２　基板
　２２ｃ　基準点
　２４　噛合素子群
　２５　噛合素子
　２５ａ　柱部
　Ｄ２５ａ　柱部の直径
　２５ｈ　頭部
　Ｄ２５ｈ　頭部の直径
　２６　案内部
　Ｄ２６　案内部の内接円の直径
　Ｒ２６　案内部の内接円の半径
　２６ａ　案内部の内接円
　２６ｂ　案内部の外接円
　ΔＸ　案内部の内接円の半径と突起部の半径との差
　２８　穴部
　２８ｃ　角部
　Ｄ２８　穴部の直径
　ΔＹ　仮想の円の半径と案内部の外接円の半径との差
　４１　外板
　４２　内板1 hook-and-loop fastener 10 first hook-and-loop fastener member 12substrate12c reference point12t substrate thickness 14meshing element group 15 meshing element L15 meshing element projecting length L15a pillar projecting length L15h head projecting length C1 circumscribed circle C2 Inscribed circle W1 Distance between adjacent circumscribed circle and inscribedcircle 15a ColumnD15a Column diameter 15h HeadD15h Head diameter 16 Projection L16 Projection length D16 Projection diameterR16 Projection Radius 16adistal end face16b sideface 16c corner 18 receiving recess W18a interval between receiving recesses (interval between protrusion and head of engagement element)
W18h Interval between receiving recesses (interval between projection and column of engaging element)
C3Virtual circle 20 Second hook andloop member 22Substrate22c Reference point 24Engagement element group 25Engagement element 25a ColumnD25a Column diameter 25h HeadD25h Head diameter 26 Guide part D26 Guide circle inscribed circle Diameter R26 Radius of the inscribed circle of theguide portion 26a Inscribed circle of theguide portion 26b circumscribed circle of the guide portion ΔX Difference between the radius of the inscribed circle of the guide portion and the radius of theprojection portion 28hole portion 28c corner portion D28 of the hole portion Diameter ΔY Difference between the radius of the virtual circle and the radius of the circumscribed circle of theguide part 41Outer plate 42 Inner plate

Claims (5)

Translated fromJapanese

　連結および分離可能な第１、第２の面ファスナー部材（１０，２０）を備え、
　前記第１、第２の面ファスナー部材（１０，２０）は、
　柱状の柱部（１５ａ，２５ａ）、前記柱部（１５ａ，２５ａ）の先端から前記柱部（１５ａ，２５ａ）の延長方向に対して交差する方向および前記延長方向に突出する頭部（１５ｈ，２５ｈ）を備える噛合素子（１５，２５）を同心円状に配列してある噛合素子群（１４，２４）と、
　平板状をなすと共にその厚み方向の一面から前記噛合素子群（１４，２４）の前記各柱部（１５ａ，２５ａ）が突出する基板（１２，２２）とをそれぞれ備え、
　前記第１の面ファスナー部材（１０）は、
　前記噛合素子群（１４）の半径方向内側であって前記基板（１２）の前記一面の前記噛合素子群（１４）が配列する同心円の中心部から前記噛合素子群（１４）よりも突出する突起部（１６）と、
　前記噛合素子群（１４）のうち半径方向に関して最も内側に位置する複数の前記噛合素子（１５）と前記突起部（１６）によって、それらの半径方向の間に形成される収容凹部（１８）とを備え、
　前記第２の面ファスナー部材（２０）は、
前記基板（２２）の前記一面の前記噛合素子群（２４）が配列する同心円の中心部において前記突起部（１６）の先部を収容する穴部（２８）を備え、前記噛合素子群（２４）のうち半径方向に関して最も内側に位置する複数の前記噛合素子（２５）を、前記突起部（１６）を前記穴部（２８）へ向かって移動可能に案内すると共に、前記収容凹部（１８）に収容される案内部（２６）として兼用することを特徴とする面ファスナー。First and second hook-and-loop fastener members (10, 20) that can be connected and separated,
The first and second hook-and-loop fastener members (10, 20) are
Columnar column parts (15a, 25a), heads (15h, 25a) projecting in the direction intersecting with the extending direction of the column parts (15a, 25a) and the extending direction from the tips of the column parts (15a, 25a) A meshing element group (14, 24) in which meshing elements (15, 25) provided with 25h) are arranged concentrically;
Each having a flat plate shape and a substrate (12, 22) from which each column portion (15a, 25a) of the meshing element group (14, 24) protrudes from one surface in the thickness direction;
The first hook-and-loop fastener member (10)
A protrusion that protrudes more inward than the meshing element group (14) from a concentric center portion where the meshing element group (14) on the one surface of the substrate (12) is arranged on the radially inner side of the meshing element group (14). Part (16),
An accommodating recess (18) formed between the plurality of meshing elements (15) and the projections (16) located in the innermost side in the radial direction in the meshing element group (14) With
The second hook-and-loop fastener member (20)
A hole (28) for receiving the tip of the protrusion (16) at the center of a concentric circle in which the meshing element group (24) on the one surface of the substrate (22) is arranged; and the meshing element group (24 ) Of the plurality of meshing elements (25) located on the innermost side in the radial direction are guided so that the protrusion (16) can move toward the hole (28), and the receiving recess (18) A hook-and-loop fastener that is also used as a guide portion (26) to be accommodated in the bag.　前記穴部（２８）の直径（Ｄ２８）は前記突起部（１６）の直径（Ｄ１６）よりも長いものであり、
　仮想の円（Ｃ３）であって前記第１の面ファスナー部材（１０）の前記噛合素子群（１４）のうち半径方向に関して最も内側に位置する複数の前記噛合素子（１５）における中心を通過する前記仮想の円（Ｃ３）の直径は、前記第２の面ファスナー部材（２０）の前記案内部（２６）における外接円（２６ｂ）の直径よりも大きいものであり、
　前記穴部（２８）の直径（Ｄ２８）と前記突起部（１６）の直径（Ｄ１６）との差は、前記仮想の円（Ｃ３）の半径と前記案内部（２６）の外接円（２６ｂ）の半径との差（ΔＹ）よりも小さいことを特徴とする請求項１に記載の面ファスナー。The diameter (D28) of the hole (28) is longer than the diameter (D16) of the protrusion (16),
An imaginary circle (C3) that passes through the center of the plurality of meshing elements (15) located on the innermost side in the radial direction in the meshing element group (14) of the first hook-and-loop fastener member (10). The diameter of the virtual circle (C3) is larger than the diameter of the circumscribed circle (26b) in the guide portion (26) of the second hook-and-loop fastener member (20),
The difference between the diameter (D28) of the hole (28) and the diameter (D16) of the protrusion (16) is the radius of the virtual circle (C3) and the circumscribed circle (26b) of the guide part (26). The hook-and-loop fastener according to claim 1, wherein the surface fastener is smaller than a difference (ΔY) from a radius of the hook.　前記穴部（２８）の直径（Ｄ２８）は前記突起部（１６）の直径（Ｄ１６）よりも長いものであり、
　前記穴部（２８）の直径（Ｄ２８）と前記突起部（１６）の直径（Ｄ１６）との差は、前記第１又は第２の面ファスナー部材（１０，２０）の前記柱部（１５ａ、２５ａ）の直径（Ｄ１５ａ、Ｄ２５ａ）よりも小さいことを特徴とする請求項１に記載の面ファスナー。The diameter (D28) of the hole (28) is longer than the diameter (D16) of the protrusion (16),
The difference between the diameter (D28) of the hole (28) and the diameter (D16) of the protrusion (16) is the difference between the pillar portion (15a, 2) of the first or second hook-and-loop fastener member (10, 20). The hook-and-loop fastener according to claim 1, wherein the hook-and-loop fastener is smaller than a diameter (D15a, D25a) of 25a).　前記案内部（２６）の内接円（２６ａ）の直径（Ｄ２６）は、前記突起部（１６）の直径（Ｄ１６）よりも長いものであり、
　前記案内部（２６）の内接円（２６ａ）の直径（Ｄ２６）と前記突起部（１６）の直径（Ｄ１６）との差は、前記第１、第２の面ファスナー部材（１０，２０）の前記柱部（１５ａ、２５ａ）の直径（Ｄ１５ａ、Ｄ２５ａ）よりも小さいことを特徴とする請求項１に記載の面ファスナー。The diameter (D26) of the inscribed circle (26a) of the guide part (26) is longer than the diameter (D16) of the protrusion (16),
The difference between the diameter (D26) of the inscribed circle (26a) of the guide portion (26) and the diameter (D16) of the protrusion (16) is the first and second hook-and-loop fastener members (10, 20). The hook-and-loop fastener according to claim 1, wherein the surface fastener is smaller than the diameter (D15a, D25a) of the column part (15a, 25a).　前記突起部（１６）の先端面（１６ａ）の直径は、前記第２の面ファスナー部材（２０）の中心部よりも半径方向外側の領域において隣り合う噛合素子（２５）同士の最短距離よりも長いものであることを特徴とする請求項１に記載の面ファスナー。The diameter of the front end surface (16a) of the protrusion (16) is larger than the shortest distance between the meshing elements (25) adjacent to each other in the region radially outward from the center of the second hook-and-loop fastener member (20). The hook-and-loop fastener according to claim 1, which is long.

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