【考案の詳細な説明】本考案は管の継手部の離脱防止に好適な管継手離脱防止
用金具に関するものである。[Detailed Description of the Invention] The present invention relates to a fitting for preventing separation of a pipe joint, which is suitable for preventing separation of a joint portion of a pipe.
従来、管の受口に管の挿口をバッキングを介して挿嵌し
た管継手の離脱防止手段として、管の受口及び挿口に夫
々被設したフランジ間を通常のボルト、ナツト等で固定
的に連結しているが、一連なボルトによりフランジが連
結されているため、管継手の曲がりの自由性や管継手の
軸線方向への伸縮の自由性が阻害され、また施工性及び
部品管理を有利とするために前記ボルト等を予めフラン
ジに取付けておくと、両フランジが一体化するため同時
的に管に取付けねばならず、このため施工性に劣るもの
であった。Conventionally, as a means to prevent the separation of a pipe fitting in which a pipe socket is inserted into a pipe socket via a backing, ordinary bolts, nuts, etc. are used to secure the flanges installed on the pipe socket and pipe socket, respectively. However, since the flanges are connected by a series of bolts, the flexibility of bending the pipe joint and the freedom of expansion and contraction in the axial direction of the pipe joint is inhibited, and it also makes workability and parts management difficult. If the bolts and the like are attached to the flange in advance for this advantage, both flanges must be attached to the pipe at the same time since they are integrated, resulting in poor workability.
そこで本考案は管継手の曲がりや伸縮の自由性を妨げず
、しかも管継手への施工性に優れた管継手離脱防止用金
具を提供しようとするものである。Therefore, the present invention aims to provide a fitting for preventing separation of a pipe joint, which does not hinder the freedom of bending, expansion and contraction of the pipe joint, and has excellent workability on the pipe joint.
以下、本考案の図示の一実施例について説明すると、本
例は、合成樹脂製管１の挿口２を合成樹脂製管１の受口
３内にバッキング４を介して規定量挿入した管継手５に
適用した場合を示すもので、挿口２外周及び受口３０基
部外周に夫々フランジ６．６′を被設し、両フランジ６
．６′を離脱防止用金具７で連結している。Hereinafter, one illustrated embodiment of the present invention will be described. This example is a pipe joint in which the insertion port 2 of the synthetic resin pipe 1 is inserted into the socket 3 of the synthetic resin pipe 1 by a specified amount through the backing 4. 5, flanges 6 and 6' are provided on the outer periphery of the socket 2 and the outer periphery of the base of the socket 30, respectively, and both flanges 6
．． 6' are connected by a detachment prevention fitting 7.
離脱防止用金具Ｔは、ボルト部８の頭部９＆ＣＴ字状杆
部１０を突設した連係ボルト１１と、ボルト部１２０頭
部１３Ｉｌｃフック状杆部１４を突設した連係ボルト１
５とを備え、連係ボルト１５はフック状杆部１４の鈎先
１６を残して屈曲部１６から背面１８にかげて一連の長
孔１９を設けている。The detachment prevention metal fittings T include a linking bolt 11 with a head 9 of a bolt part 8 and a CT-shaped rod 10 projecting thereon, and a linking bolt 1 with a bolt part 120 head 13Ilc hook-shaped rod 14 projecting.
5, and the connecting bolt 15 has a series of elongated holes 19 extending from the bent portion 16 to the back surface 18, leaving the hook tip 16 of the hook-shaped rod portion 14.
更に、離脱防止用金具Ｔは連係ボルトのＴ字状杆部１０
を第２図の仮想線２０で示すようにフック状杆部の長孔
１９に挿通してから、Ｔ字状杆部１０を杆軸中心に略９
０度回転させてＴ字状杆部１０を長孔１９から抜止めし
、次にフック状杆部１４を長孔１９に沿って屈曲部１Ｔ
側に倒して鈎先１６により離脱防止下にフック状杆部１
４とＴ字状杆部１０を係合している。Furthermore, the detachment prevention metal fitting T is connected to the T-shaped rod portion 10 of the linking bolt.
is inserted into the long hole 19 of the hook-shaped rod portion as shown by the imaginary line 20 in FIG. 2, and then the T-shaped rod portion 10 is inserted approximately 9
Rotate 0 degrees to prevent the T-shaped rod portion 10 from coming out from the long hole 19, and then move the hook-shaped rod portion 14 along the long hole 19 to the bent portion 1T.
When tilted to the side, the hook-shaped rod part 1 is prevented from detaching by the hook tip 16.
4 and the T-shaped rod portion 10 are engaged with each other.
そして本例は、連係用ボルトのボルト部８，１２を夫々
フランジ６．６′の周方向等分位置の張出部２１．２１
に設けたボルト挿通孔２２，２２に挿通して連係ポル）
１１，１５を管継手５の軸線方向に沿わせ、ボルト軸８
，１２０端部に挿嵌した所要長のポリエチレン製弾性リ
ング２３，２３を夫々ボルト部８，１２の端部に螺合し
たナツト２４゜２４とフランジの張出部２１．２１間に
介在し、ナラ）２４．２４０適度の緊締により張出部２
１゜２１を夫々頭部９，１３に衝合している。In this example, the bolt portions 8 and 12 of the linking bolt are connected to protruding portions 21 and 21 at equal positions in the circumferential direction of the flange 6 and 6', respectively.
(Insert into the bolt insertion holes 22, 22 provided in the linking port)
11 and 15 along the axial direction of the pipe joint 5, and the bolt shaft 8
, 120, interposed between a nut 24° 24 screwed into the end of the bolt portions 8, 12, and an overhanging portion 21, 21 of the flange. Oak) 24.240 Protruding part 2 with moderate tightening
1°21 abut against the heads 9 and 13, respectively.
なお、フランジ６．６′は夫々二つ割りした一対の割フ
ランジ２５．２５で構成され、割フランジ２５．２５の
対向した張出端部２６，２６をボルト２７、ナツト２８
で締付けで割フランジ２５，２５の内周面に設げた係止
爪２９を管１，１の外周面に喰込ませている。The flange 6.6' is composed of a pair of split flanges 25.25, each of which is split in half, and the opposed projecting ends 26, 26 of the split flanges 25.25 are connected to bolts 27 and nuts 28.
By tightening, the locking claws 29 provided on the inner peripheral surfaces of the split flanges 25, 25 are bitten into the outer peripheral surfaces of the tubes 1, 1.
このようにした本例は、埋設施工状態に於いて肩囲の土
の変位等により管継手５が伸縮しようとすると、その伸
長時には管１，１に夫々固定化したフランジ６．６′と
ナツト２４，２４との間隙が縮まって弾性リング２３．
２３が圧縮され、その撓曲反力により管継手５の抜出防
止力が管継手５の抜出量に応じて徐々に高まり、これと
逆に管継手５の短縮時には連係ボルトのＴ字状杆部１０
とフック状杆部１４とが第３図の仮想線３０で示すよう
に相対的に移動し、こうして管継手５の一定範囲での伸
縮が支障なく行われる。In this example, when the pipe joint 5 tries to expand or contract due to displacement of the soil around the shoulders during underground construction, the flanges 6, 6' and nuts fixed to the pipes 1, 1, respectively, 24, 24 is narrowed, and the elastic ring 23.
23 is compressed, and due to the bending reaction force, the pullout prevention force of the pipe fitting 5 gradually increases according to the amount of the pipe fitting 5 being pulled out, and conversely, when the pipe fitting 5 is shortened, the T-shape of the linking bolt Rod part 10
The pipe joint 5 and the hook-shaped rod portion 14 move relative to each other as shown by the imaginary line 30 in FIG. 3, and thus the pipe joint 5 can be expanded and contracted within a certain range without any problem.
また管継手５の相対的曲がりに対しても、管継手５は許
容範囲内で曲がることができるが、この場合にも離脱防
止用金具７は連係ボルトのＴ字状杆部１０とフック状杆
部１４との係合部で曲がると共に曲げ内側位置のＴ字状
杆部１０とフック状杆部１４との相対移動によりｍなく
行われる。In addition, the pipe fitting 5 can be bent within an allowable range even when the pipe fitting 5 is bent relative to the other, but even in this case, the detachment prevention fitting 7 is connected to the T-shaped rod part 10 of the linking bolt and the hook-shaped rod. The bending is performed at the engagement portion with the portion 14, and the bending is performed smoothly by relative movement between the T-shaped rod portion 10 and the hook-shaped rod portion 14 at the inside position of the bending.
なお、弾性リング２３を用いることなくナラ士２４をフ
ランジ６゜６′に直接締付けた場合には予め前記仮想線
３０で示すように、Ｔ字状杆部１０をフック状杆部１４
に対し所要の係合用隙間３１を付与して施工しておけば
前記管継手５の伸縮□の自由性を維持できる。In addition, when the tensioner 24 is directly tightened to the flange 6° 6' without using the elastic ring 23, as shown by the virtual line 30, the T-shaped rod portion 10 is attached to the hook-shaped rod portion 14 in advance.
By providing a required engagement gap 31 to the pipe joint 5, the freedom of expansion and contraction of the pipe joint 5 can be maintained.
また施工に際してＧＬ連係゛ボルト１１，１５を夫々前
記のようにフランジ６．６′にナツト２４゜２４で固定
しておき、一方のフランジ６又は１を管ＩＫボルト２７
．ナツト２８で被設してから、前記のように連係ボルト
のＴ字状杆部１０をフック状杆部１４に係合し、次にフ
ランジ６′又は６をボルト２７、ナツト２８で管１に被
設することにより、予め連係ポルＮｌ、１５を夫々取付
けたフランジ６．６′を互に独立的に管１，１に施工で
きるので、施工性を向上できる。Also, during construction, the GL linkage bolts 11 and 15 are each fixed to the flanges 6 and 6' with nuts 24 and 24 as described above, and one flange 6 or 1 is fixed to the pipe IK bolt 27.
．． After mounting with the nut 28, the T-shaped rod part 10 of the linking bolt is engaged with the hook-shaped rod part 14 as described above, and then the flange 6' or 6 is attached to the pipe 1 with the bolt 27 and the nut 28. By installing the flanges 6 and 6' to which the connecting poles N1 and 15 are attached in advance, respectively, can be installed on the pipes 1 and 1 independently of each other, thereby improving workability.
上記のように本考案０気ボルト部の頭部にＴ字状杆部を
突設した連係ボルトと、ボルト部の頭部にフック状杆部
を突設し且つ鈎先を残してフック状杆部に前記Ｔ字状杆
部を挿入して係合する長孔な設けた連係ボルトとを備え
、前記Ｔ字状杆部を前記フック状杆部の、長孔に挿通し
Ｔ字状杆部の杆軸中心に略９０度回転した際、前記Ｔ字
状杆部が前記フック状杆部に抜止め可能とされているこ
とを特徴としており、Ｔ字状杆部とフック状杆部を抜止
め状態下に係合した使用時に該係合部で管継手の曲がり
や伸縮に応じることができて管継手の曲がりや伸縮の自
由性を維持でき、また二つ割したフランジ等に取付けた
後でもＴ字状杆部をフック状杆部に抜止め状態下に係合
できるので管継手への施工性を向上でき、且つ単なる係
合式のものと異なり使用状態に於いて管継手が曲がりや
伸縮を生じてひＴ字状杆部がフック状杆部の鈎先や長孔
から離脱する虞れがなく管継手の離脱防止を確実に行い
うる。As mentioned above, the present invention has a linking bolt in which a T-shaped rod protrudes from the head of the zero tension bolt part, and a hook-shaped rod in which a hook-shaped rod protrudes from the head of the bolt part and leaves the hook tip. a connecting bolt provided with a long hole into which the T-shaped rod part is inserted and engaged; the T-shaped rod part is inserted into the long hole of the hook-shaped rod part; When the rod is rotated approximately 90 degrees about the axis of the rod, the T-shaped rod portion can be prevented from being pulled out by the hook-shaped rod portion, and the T-shaped rod portion and the hook-shaped rod portion can be pulled out. When used in a stopped state, the engagement part can respond to the bending and expansion and contraction of the pipe joint, maintaining the freedom of bending and expansion and contraction of the pipe joint, and after attaching it to a flange that has been split into two, etc. However, the T-shaped rod part can be engaged with the hook-shaped rod part in a state that prevents it from coming out, which improves the workability of the pipe fitting.In addition, unlike simple engagement type, the pipe fitting does not bend or expand or contract during use. There is no risk that the T-shaped rod part will separate from the hook tip or elongated hole of the hook-shaped rod part due to this, and the separation of the pipe joint can be reliably prevented.
図面は本考案の一実施例を示すもので第１図は施工状態
に於ける正面図、第２図は第１図のＡ−Ａ線矢視に於け
る断面図、第３図は第２図の平面図である。１・・・・・・管、２・・・・・・挿口、３・・・・・
・受口、４・・・・・・バッキング、５・・・・・・管
継手、６，６′・・・・・・フランジ、７・・・・・・
離脱防止用金具、８・・・・・・ボルト部、９・・・・
・・頭部、１０・・・・・・Ｔ字状杆部、１１・・・・
・・連係ボルト、１２・・・・・・ボルト部、１３・・
・・・・頭部、１４・・・・・・フック状杆部、１５・
・・・・・連係ボルト、１６・・・・・・鈎先、１７・
・・・・・屈曲部、１８・・・・・・背面、１９・・・
・・張孔、２０・・・・・・仮想線、２１・・・・・・
張出部、２２・・・・・・ボルト挿通孔、２３・・・・
・弾性リング、２４・・・・・・ナツト、２５・・・・
・・割フランジ、２６・・・・・・張出端ｔ２７−・・
・・・ボルト、２８・・・・・・ナツト、２９・・・・
・・係止爪、３０・・・・・・仮想線、３１・・・・・
係合用隙間。The drawings show one embodiment of the present invention, and Fig. 1 is a front view in the construction state, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a FIG. 1...tube, 2...insert, 3...
・Socket, 4... Backing, 5... Pipe fitting, 6, 6'... Flange, 7...
Removal prevention metal fitting, 8... Bolt part, 9...
...Head, 10...T-shaped rod, 11...
... Linking bolt, 12 ... Bolt part, 13 ...
... Head, 14 ... Hook-shaped rod part, 15.
... Linking bolt, 16 ... Hook tip, 17.
...Bending part, 18... Back, 19...
...Zhang Kong, 20...Virtual line, 21...
Overhanging part, 22... Bolt insertion hole, 23...
・Elastic ring, 24...Nut, 25...
...Split flange, 26...Protruding end t27-...
...Bolt, 28...Natsuto, 29...
...Latching claw, 30...Virtual line, 31...
Engagement gap.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980128254UJPS5853506Y2 (en) | 1980-09-08 | 1980-09-08 | Fittings to prevent pipe fittings from coming off |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980128254UJPS5853506Y2 (en) | 1980-09-08 | 1980-09-08 | Fittings to prevent pipe fittings from coming off |
| Publication Number | Publication Date |
|---|---|
| JPS5749986U JPS5749986U (en) | 1982-03-20 |
| JPS5853506Y2true JPS5853506Y2 (en) | 1983-12-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980128254UExpiredJPS5853506Y2 (en) | 1980-09-08 | 1980-09-08 | Fittings to prevent pipe fittings from coming off |
| Country | Link |
|---|---|
| JP (1) | JPS5853506Y2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6071787U (en)* | 1983-10-22 | 1985-05-21 | 北村 皓一 | Pipe connection separation prevention device |
| JP2596193Y2 (en)* | 1993-11-12 | 1999-06-07 | 株式会社スイケンテクノロジー | Pipe fittings |
| JP4986776B2 (en)* | 2007-09-06 | 2012-07-25 | 株式会社水道技術開発機構 | Pipe joint movement prevention device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50110818U (en)* | 1974-02-19 | 1975-09-10 | ||
| JPS50128713U (en)* | 1974-04-05 | 1975-10-22 | ||
| JPS5368422A (en)* | 1976-11-30 | 1978-06-17 | Kubota Ltd | Falling-off preventive joint |
| Publication number | Publication date |
|---|---|
| JPS5749986U (en) | 1982-03-20 |
| Publication | Publication Date | Title |
|---|---|---|
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