Movatterモバイル変換


[0]ホーム

URL:


JP5500055B2 - Portable cutting machine - Google Patents

Portable cutting machine
Download PDF

Info

Publication number
JP5500055B2
JP5500055B2JP2010270320AJP2010270320AJP5500055B2JP 5500055 B2JP5500055 B2JP 5500055B2JP 2010270320 AJP2010270320 AJP 2010270320AJP 2010270320 AJP2010270320 AJP 2010270320AJP 5500055 B2JP5500055 B2JP 5500055B2
Authority
JP
Japan
Prior art keywords
saw blade
wall
dust collection
collection box
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2010270320A
Other languages
Japanese (ja)
Other versions
JP2012115969A (en
Inventor
和信 吉村
琢磨 野中
朋典 一場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Max Co Ltd
Original Assignee
Max Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Max Co LtdfiledCriticalMax Co Ltd
Priority to JP2010270320ApriorityCriticalpatent/JP5500055B2/en
Priority to CN201110399471.0Aprioritypatent/CN102528854B/en
Publication of JP2012115969ApublicationCriticalpatent/JP2012115969A/en
Application grantedgrantedCritical
Publication of JP5500055B2publicationCriticalpatent/JP5500055B2/en
Activelegal-statusCriticalCurrent
Anticipated expirationlegal-statusCritical

Links

Images

Landscapes

Description

Translated fromJapanese

本発明は携帯用切断機に関する。  The present invention relates to a portable cutting machine.

一般に、回転するチップソーで部材を切断する携帯用切断機は、木板のほかに鉄、アルミなどの金属製部材を切断することができる。これらの金属製部材を切断する際には切粉が飛散するので、のこ刃を回転自在に設けた定盤(ベース)の上部には飛散した切粉を集めるための集塵ボックスが設けられている。集塵ボックスは、のこ刃の上方を覆うように配置されているので、のこ刃よりも大きく、定盤と密接するように配置されている。  Generally, a portable cutting machine that cuts a member with a rotating tip saw can cut a metal member such as iron or aluminum in addition to a wooden board. When cutting these metal parts, chips are scattered, so a dust collection box for collecting the scattered chips is provided on the top of the surface plate (base) provided with a saw blade. ing. Since the dust collection box is disposed so as to cover the upper side of the saw blade, it is larger than the saw blade and disposed so as to be in close contact with the surface plate.

部材を切断するときは、部材を定盤の下面にあてがうが、のこ刃がどこにあるのかがわからないと切断位置を特定することができない。そこで、集塵ボックスを透明な合成樹脂から構成し、集塵ボックスからのこ刃の先端を透視して切断位置の狙いが定められるようになっている(特許文献1参照)。さらに、定盤にも、のこ刃の中心の延長上で集塵ボックスに覆われない位置にのぞき窓を開口形成し、真上からのぞき窓越しに刃先と部材に設けられた切断用マークとを合せられるようになっている。  When cutting a member, the member is applied to the lower surface of the surface plate, but the cutting position cannot be specified unless the location of the saw blade is known. Therefore, the dust collection box is made of a transparent synthetic resin, and the cutting position is aimed by seeing through the tip of the saw blade from the dust collection box (see Patent Document 1). Furthermore, on the surface plate, an inspection window is formed at a position that is not covered by the dust collection box on the extension of the center of the saw blade, and a cutting mark provided on the blade edge and the member through the observation window from above. Can be matched.

特開平10−202609号公報JP-A-10-202609

しかしながら、切粉は金属で、熱くなっているから、切断時に定盤の上方に飛び散って合成樹脂製集塵ボックスの内面に衝突するので、切断作業を繰り返すうちに、内面を少しずつ傷つけていく。特に集塵ボックスの内周面には切粉が直接に当たる。このため、集塵ボックスの内周面が徐々に削られてついには外周面にまで達して周壁の端部に削りによる溝ができる。同時に、内面にできた小さな傷のために曇りが発生し、表面が白濁して透明性が損なわれ、のこ刃の視認性も失われていく。このため、作業者はのぞき窓から切断位置を確認することになるが、従来ののぞき窓はのこ刃の刃先から遠い位置に設けられているので、被切断部材の切断部分がのこ刃に近づくと、のこ刃が見えにくく、狙いが狂いやすいという問題があった。  However, since the chips are metal and are hot, they scatter over the surface of the platen and collide with the inner surface of the dust collection box made of synthetic resin. As the cutting operation is repeated, the inner surface is gradually damaged. . In particular, chips hit the inner peripheral surface of the dust collection box directly. For this reason, the inner peripheral surface of the dust collection box is gradually scraped, and finally reaches the outer peripheral surface to form a groove by shaving at the end of the peripheral wall. At the same time, clouding occurs due to small scratches on the inner surface, the surface becomes clouded and the transparency is lost, and the visibility of the saw blade is lost. For this reason, the operator checks the cutting position from the observation window, but since the conventional inspection window is provided at a position far from the blade edge of the saw blade, the cutting portion of the member to be cut becomes the saw blade. When approaching, there was a problem that the saw blade was difficult to see and the aim was likely to go wrong.

本発明は、上記問題点を解消し、集塵ボックスの透明性を維持し、長期間視認性を確保することができるとともに、耐久性を向上させることができ、また集塵ボックスに曇りが発生した際にも、のこ刃に近い位置ののぞき窓より、のこ刃の情報をわかりやすくすることができる携帯用切断機を提供することをその課題とする。  The present invention solves the above problems, maintains the transparency of the dust collection box, can ensure visibility for a long time, and can improve durability, and clouding occurs in the dust collection box. In this case, it is an object of the present invention to provide a portable cutting machine that can make the information on the saw blade easier to understand from the observation window located near the saw blade.

前記第1の課題を解決するため、請求項1に係る発明は、切断用ののこ刃を通す開口部を貫通形成した定盤の上部に、切断時に飛散した切粉を集めるための透明な合成樹脂製集塵ボックスを上記のこ刃の周囲を覆うように設けた携帯用切断機において、上記集塵ボックスは、半円弧状の周壁部と略半円形の内側壁部と外側壁部とによって構成され、上記周壁部の内周壁側と、上記内側壁部及び上記外側壁部と、に沿って金属製のプロテクタを取り付け、上記プロテクタを、透明な上記内側壁部側から上記のこ刃の刃先を透視するのに邪魔にならない位置に設け、上記集塵ボックスの内側壁部から上記のこ刃の刃先を透視可能としたことを特徴とする。In order to solve the first problem, the invention according toclaim 1 is a transparent device for collecting chips scattered at the time of cutting on an upper part of a surface plate formed by penetrating an opening through which a saw blade for cutting is passed. In the portable cutting machine provided with a synthetic resin dust collection box so as to cover the periphery of the saw blade, thedust collection box includes a semicircular arc-shaped peripheral wall portion, a substantially semicircular inner wall portion, and an outer wall portion. is constituted by an inner peripheral wall ofthe peripheral wall portion, andthe inner wall portion andthe outer wall, install a metal protector alongsaid saw blade the protector, a transparent the inner wall portion The blade edge of the saw blade can be seen through from the inner wall portion of the dust collection box.

請求項2に係る発明は、請求項1において、上記のこ刃の刃先を透視可能な内側壁部を外側に膨出させ、のこ刃を通す上記開口部を外側に拡開させて形成したことを特徴とする。  According to a second aspect of the present invention, in the first aspect, the inner wall portion through which the blade edge of the saw blade can be seen is bulged outward, and the opening through which the saw blade is passed is expanded outward. It is characterized by that.

請求項3に係る発明は、請求項1又は2において、上記集塵ボックスの内側壁部の内側に、硬質ガラスを接着したこと、または、上記集塵ボックスの内側壁部に開口部を形成し、この開口部に硬質ガラスを固着したことを特徴とする。  The invention according toclaim 3 is the invention according to claim 1 or 2, wherein hard glass is adhered to the inside of the inner wall portion of the dust collection box, or an opening is formed in the inner wall portion of the dust collection box. The hard glass is fixed to the opening.

請求項4に係る発明は、請求項1において、上記定盤には、集塵ボックスに覆われない位置で上記のこ刃の中心の延長上には、上記のこ刃の刃先に近い位置と遠い位置とにそれぞれ第1ののぞき窓と第2ののぞき窓とを開口形成し、第1ののぞき窓の開口形成された底角を結ぶ線と第2ののぞき窓の開口形成された前後の対角を結ぶ線とが上記のこ刃の延長上にあることを特徴とする。  According to a fourth aspect of the present invention, in the first aspect, the surface plate includes a position near the blade edge of the saw blade on an extension of the center of the saw blade at a position not covered by the dust collection box. A first observation window and a second observation window are formed at distant positions, respectively, and a line connecting a bottom angle of the first observation window and a second observation window before and after the second observation window is formed. The line connecting the diagonals is on the extension of the saw blade.

請求項5に係る発明は、請求項4において、上記集塵ボックスの外側壁部の前側を絞り込んでくさび状にしたことを特徴とする。  The invention according toclaim 5 is characterized in that, inclaim 4, the front side of the outer wall portion of the dust collection box is narrowed down into a wedge shape.

請求項1に係る発明によれば、被切断部材を切断するにあたっては、のこ刃の先端がどこにあるかを確認しなければならないが、集塵ボックス内側壁部は透明であり、内側壁側のプロテクタは、集塵ボックスの内側壁部からのこ刃の刃先を透視するのに邪魔にならない位置に設けられているから、作業者は集塵ボックスの内側壁からのこ刃の刃先を透視することができる。したがって、刃先と被切断部材との位置関係を確実に把握して正確に切断することができる。  According to the first aspect of the invention, when cutting the member to be cut, it is necessary to confirm where the tip of the saw blade is located, but the inner wall portion of the dust collection box is transparent and the inner wall side Since the protector is provided at a position that does not obstruct the saw blade edge from the inner wall of the dust collection box, the operator sees the blade edge of the saw blade from the inner wall of the dust collection box. can do. Therefore, the positional relationship between the blade edge and the member to be cut can be reliably grasped and cut accurately.

また、集塵ボックスの内側壁部において、のこ刃を透視できる部位は、切粉が直接に当たりにくい部位であるから、集塵ボックスの透明性は長く維持され、長期間視認性を確保することができる。  In addition, the part that can see through the saw blade on the inner wall of the dust collection box is a part that is difficult for chips to hit directly. Therefore, the transparency of the dust collection box is maintained for a long time and visibility is ensured for a long time. Can do.

さらに、集塵ボックスの内周壁とその近傍には、切断時に飛び散った切粉が直接に当たるが、ここには金属製のプロテクタ、が取り付けられ、切粉で特に削れ易い部分がプロテクタによって良好に保護されるから、集塵ボックスの耐久性が向上する。  In addition, chips scattered during cutting directly hit the inner peripheral wall of the dust collection box and its vicinity, but a metal protector is attached here, and the parts that are particularly easily scraped by the chips are well protected by the protector. Therefore, the durability of the dust collection box is improved.

請求項2に係る発明によれば、のこ刃の刃先を透視可能な内側壁部の一部を、外側に膨出させるとともに、のこ刃を通す開口部を外側に拡開形成したので、視認領域が増大し、のこ刃の位置をより広い範囲で認識することができる。  According to the invention ofclaim 2, since a part of the inner wall portion through which the blade edge of the saw blade can be seen is bulged outward and the opening through which the saw blade is passed is formed to expand outward, The viewing area increases, and the position of the saw blade can be recognized in a wider range.

そして、この場合、外側に膨出させた分だけ集塵カバーの内側壁には切粉が接触しにくくなるので、内側壁部が白濁しにくく、視認性がより良好に持続する。  In this case, the chips are less likely to come into contact with the inner wall of the dust collection cover by the amount bulged outwardly, so that the inner wall is less likely to become cloudy and the visibility is maintained more favorably.

請求項3に係る発明によれば、上記集塵ボックスの内側壁部の内側に硬質ガラスを接着した、または、上記集塵ボックスの内側壁部に開口部を形成し、この開口部に硬質ガラスを固着したので、硬質ガラスは硬く表面に傷がつきにくいから、長期間にわたり透明度を維持することができる。  According to the invention which concerns onClaim 3, hard glass was adhere | attached inside the inner wall part of the said dust collection box, or an opening part was formed in the inner wall part of the said dust collection box, and hard glass was formed in this opening part. Since the hard glass is hard and the surface is not easily scratched, transparency can be maintained for a long time.

請求項4に係る発明によれば、切断時に発生した切粉はプロテクタで覆った部分だけでなく、それ以外の部分にも飛び散るから、切断作業が繰り返されると、のこ刃の先端を透視する内側壁部も徐々に白濁し、ついにはのこ刃の先端が見えなくなる。このような状態になったときでも、のこ刃の先端位置を第1ののぞき窓と第2ののぞき窓から確認しながら正確に切断することができる。  According to the fourth aspect of the invention, the chips generated at the time of cutting are scattered not only in the part covered with the protector but also in other parts, so when the cutting operation is repeated, the tip of the saw blade is seen through. The inner wall also gradually becomes cloudy and eventually the tip of the saw blade disappears. Even in such a state, cutting can be accurately performed while confirming the tip position of the saw blade from the first and second observation windows.

請求項5に係る発明によれば、集塵ボックスの外側壁部の前側を絞り込んでくさび状の形状にしたので、集塵ボックスは前方が先細となり、作業者が上からのぞいたときに、特に第1ののぞき窓からのこ刃の先端位置が見やすくなる。  According to the invention according toclaim 5, since the front side of the outer wall portion of the dust collection box is squeezed into a wedge shape, the dust collection box is tapered forward, and when the operator peeks from above, The tip position of the saw blade can be easily seen from the first viewing window.

本発明に係る携帯用切断機の斜視図The perspective view of the portable cutting machine which concerns on thisinvention図1の一部の拡大図1 is an enlarged view of a part of FIG.上記携帯用切断機を図1の反対側から見た斜視図The perspective view which looked at the said portable cutting machine from the opposite side of FIG.上記携帯用切断機の側面図Side view of the above portable cutting machine上記携帯用切断機の平面図Top view of the portable cutting machine図4のa−a線上の前側の一部の拡大断面図Partial enlarged sectional view of the front side on the aa line in FIG.図4のb−b線上の断面図Sectional drawing on the bb line of FIG.図5のc−c線上の断面図Sectional drawing on the cc line of FIG.図6のd−d線上の断面図Sectional drawing on the dd line of FIG.集塵ボックスの内側壁部を外側に膨出させた状態の拡大断面図Enlarged cross-sectional view of the dust collection box with its inner wall bulged outward定盤を下側から見た状態を示す底面図Bottom view showing the surface plate as seen from below

図1〜図9において符号Aは携帯用切断機を示す。この切断機Aは、切断機本体1を定盤2に回動自在に設けたもので、定盤2の一側には、切断機本体1に設けられたのこ刃(丸鋸)3を通す開口部4が貫通形成され、のこ刃3の一部は定盤2の下方に突出可能に構成されている。  1-9, the code | symbol A shows a portable cutting machine. In this cutting machine A, a cutting machinemain body 1 is rotatably provided on asurface plate 2, and a saw blade (round saw) 3 provided on the cutting machinemain body 1 is provided on one side of thesurface plate 2. Anopening 4 is formed so as to pass therethrough, and a part of thesaw blade 3 is configured to protrude downward from thesurface plate 2.

切断機本体1には、切断用ののこ刃3とのこ刃3を回転させる回転駆動機構と操作用ハンドル5とが設けられている。回転駆動機構には、図7に示されるように、のこ刃3の回転軸7と減速歯車9を介して作動連結する電動モータ6と、電動モータ6に電力を供給するバッテリパック21とが含まれる。電動モータ6はモータハウジングの内部に配置されている。操作用ハンドル5には電動モータの作動を制御するトリガ8が取り付けられている。  The cutting machinemain body 1 is provided with acutting blade 3 for cutting, a rotation drive mechanism for rotating thesaw blade 3 and anoperation handle 5. As shown in FIG. 7, the rotation drive mechanism includes an electric motor 6 that is operatively connected via the rotary shaft 7 of thesaw blade 3 and areduction gear 9, and abattery pack 21 that supplies electric power to the electric motor 6. included. The electric motor 6 is disposed inside the motor housing. A trigger 8 for controlling the operation of the electric motor is attached to theoperation handle 5.

定盤2は切断機本体1の下部に配置された金属製の板状部材で、のこ刃3を通す開口部4の下方にはのこ刃3の一部が露出し、円弧状のロアガード10によって覆われている。このロアガード10はのこ刃3の回転軸7を中心に後方から上方に回動可能に装着されている。また、定盤2の上部には、切断時に飛散した切粉を集めるための透明なポリカーボネート等の合成樹脂製集塵ボックス11が上記のこ刃3の周囲を覆うように設けられている。なお、集塵ボックス11は、図7に示されるように、半円弧状の周壁部11aと略半円形の内側壁部11bと外側壁部11cとによって構成され、内側壁部11bは切断機本体1と一体的に配設され、また周壁部11aと外側壁部11cとは一体になって、内側壁部11bに対して着脱できるように構成されている。また、外側壁部11cの前側は図6に示すように一重だが、中心側は内壁部12と外壁部13の二重構造になっており、外側壁部11cはのこ刃3をはさんで内側壁部11bに対向し、内壁部12と外壁部13との間には切粉収容部14が形成されている。内壁部12には穴15が形成され、切断によって生じた切粉は、図8に示すように穴15から切粉収容部14に飛び込んで切粉が溜まるように形成されている。なお、集塵ボックス11はのこ刃3の上部を保護するアッパーガードを兼ねている。  Thesurface plate 2 is a metal plate-like member disposed at the lower part of thecutting machine body 1. A part of thesaw blade 3 is exposed below theopening 4 through which thesaw blade 3 passes, and an arc-shapedlower guard 10 is covered. Thelower guard 10 is mounted so as to be rotatable upward from the rear about the rotation shaft 7 of thesaw blade 3. Further, a synthetic resindust collection box 11 such as a transparent polycarbonate for collecting chips scattered at the time of cutting is provided on the upper surface of thesurface plate 2 so as to cover the periphery of thesaw blade 3. As shown in FIG. 7, thedust collection box 11 is composed of a semicircular arc-shapedperipheral wall portion 11a, a substantially semicircularinner wall portion 11b, and anouter wall portion 11c, and theinner wall portion 11b is a cutting machine body. 1 and theperipheral wall portion 11a and theouter wall portion 11c are integrated so as to be detachable from theinner wall portion 11b. Further, the front side of theouter wall portion 11c is single as shown in FIG. 6, but the center side has a double structure of theinner wall portion 12 and theouter wall portion 13, and theouter wall portion 11c sandwiches thesaw blade 3. Achip container 14 is formed between theinner wall 12 and theouter wall 13 so as to face theinner wall 11b.Holes 15 are formed in theinner wall portion 12, and the chips generated by cutting are formed so as to jump into thechip accommodating portion 14 from theholes 15 and collect the chips as shown in FIG. Thedust collection box 11 also serves as an upper guard that protects the upper part of thesaw blade 3.

次に、集塵ボックス11は透明であるから、内側壁部11bから定盤2の開口部4を通してのこ刃3の前側先端部を透視することができる。なお、開口部4の全体は図11に示したとおりである。  Next, since thedust collection box 11 is transparent, the front end portion of thesaw blade 3 can be seen through from theinner wall portion 11 b through theopening 4 of thesurface plate 2. Theentire opening 4 is as shown in FIG.

ところで、切断時に形成された切粉は定盤2の開口部4から上方に飛び散り、集塵ボックス11の内面に衝突するが、その際、直接に当たるのは、のこ刃3の刃先の接線方向である。そこで、集塵ボックス11の内周壁20とその近傍の切粉が直接に当たる位置には金属製のプロテクタ16、17が取り付けられている。  By the way, the chips formed at the time of cutting scatter upward from theopening 4 of thesurface plate 2 and collide with the inner surface of thedust collection box 11. It is. Therefore,metal protectors 16 and 17 are attached at positions where the innerperipheral wall 20 of thedust collection box 11 and the chips in the vicinity thereof directly hit.

特に、内側壁部11b側のプロテクタ17は、集塵ボックス11の内側壁部11b側からのこ刃3の刃先を透視するのに邪魔にならない位置に設けられている。  In particular, theprotector 17 on theinner wall portion 11 b side is provided at a position that does not interfere with the see-through of the blade edge of thesaw blade 3 from theinner wall portion 11 b side of thedust collection box 11.

次に、定盤2には、集塵ボックス11に覆われない位置で、のこ刃3の延長上に、のこ刃3の刃先に近い位置と遠い位置とにそれぞれ第1ののぞき窓18と第2ののぞき窓19とが開口形成されている。第1ののぞき窓18は二等辺三角形に、また第2ののぞき窓19は菱形に形成され、のこ刃3の延長は第1ののぞき窓18の底角を結ぶ線と第2ののぞき窓19の前後の対角を結ぶ線P(図5参照)上にあるように形成されている。  Next, on thesurface plate 2, thefirst observation window 18 is positioned at a position not covered by thedust collection box 11, on the extension of thesaw blade 3, and at a position near and far from the blade tip of thesaw blade 3. And asecond viewing window 19 are formed. Thefirst viewing window 18 is formed in an isosceles triangle, and thesecond viewing window 19 is formed in a rhombus, and the extension of thesaw blade 3 extends from the line connecting the bottom angle of thefirst viewing window 18 to the second viewing window. 19 is formed so as to be on a line P (see FIG. 5) connecting diagonals before and after 19.

上記切断機によって被切断部材を切断するときは、被切断部材の表面に定盤2の下面を当て、トリガ8を引き操作し、電動モータ2を作動させ、ハンドル5を押しつつ定盤2を被切断部材の表面に沿って移動させればよい。  When the member to be cut is cut by the cutting machine, the lower surface of thesurface plate 2 is applied to the surface of the member to be cut, the trigger 8 is pulled, theelectric motor 2 is operated, and thesurface plate 2 is moved while pushing thehandle 5. What is necessary is just to move along the surface of a to-be-cut member.

被切断部材を切断するにあたっては、のこ刃3の先端がどこにあるかを確認しなければならない。これに対応し、集塵ボックス11の内側壁部11bは透明であり、内側壁側のプロテクタ16、17は、集塵ボックス11の内側壁部11b側からのこ刃3の刃先を透視するのに邪魔にならない位置に設けられているから、図1及び図2に示されるように、作業者は集塵ボックス11の内側壁からのこ刃3の刃先を透視することができる。したがって、刃先と被切断部材との位置関係を確実に把握して正確に切断することができる。  When cutting the member to be cut, it is necessary to confirm where the tip of thesaw blade 3 is. Correspondingly, theinner wall 11b of thedust collection box 11 is transparent, and theprotectors 16 and 17 on the inner wall side see through the cutting edge of thesaw blade 3 from theinner wall 11b side of thedust collection box 11. 1 and 2, the operator can see through the blade edge of thesaw blade 3 from the inner wall of thedust collection box 11. Therefore, the positional relationship between the blade edge and the member to be cut can be reliably grasped and cut accurately.

また、集塵ボックス11の内側壁部11bで、のこ刃3を透視できる部位は、切粉が直接に当たりにくい部位であるから、集塵ボックス11の透明性は長く維持され、長期間視認性を確保することができる。  Moreover, since the site | part which can see through thesaw blade 3 in the innerside wall part 11b of thedust collection box 11 is a site | part which a chip does not hit directly, transparency of thedust collection box 11 is maintained long, and it is visible for a long period of time. Can be secured.

さらに、集塵ボックス11の内周壁20とその近傍には、切断時に飛び散った切粉が直接に当たるが、ここには金属製のプロテクタ16、17が取り付けられ、切粉で特に削れ易い部分がプロテクタ16、17によって良好に保護されるから、集塵ボックス11の耐久性が向上する。  Further, the dust scattered at the time of cutting directly hits the innerperipheral wall 20 of thedust collection box 11 and the vicinity thereof.Metal protectors 16 and 17 are attached to thedust collecting box 11, and a portion that is particularly easily scraped by the chips is protector. Since it is well protected by 16, 17, the durability of thedust collection box 11 is improved.

なお、図10に示されるように、のこ刃3の刃先を透視可能な内側壁部11bの一部を、外側に膨出させるとともに、のこ刃3を通す開口部4を外側に拡開形成するようにしてもよい。これによれば、視認領域が増大するので、のこ刃3の位置をより広い範囲で認識することができる。  As shown in FIG. 10, a part of theinner wall 11b through which the blade tip of thesaw blade 3 can be seen is bulged outward and theopening 4 through which thesaw blade 3 passes is expanded outward. You may make it form. According to this, since the visual recognition area increases, the position of thesaw blade 3 can be recognized in a wider range.

そして、この場合、外側に膨出させた分だけ集塵カバー11の内側壁には切粉が接触しにくくなるので、内側壁部11bが白濁しにくく、視認性がより良好に持続する。  In this case, the chips are less likely to come into contact with the inner wall of thedust collecting cover 11 by the amount bulged outward, so that theinner wall 11b is less likely to become cloudy and the visibility is maintained more favorably.

なお、のこ刃3の刃先を透視可能な内側壁部11bの一部又は定規2ののこ刃3を通す開口部4の近傍には、合成樹脂ではなく硬質ガラス22(図1、図2、図6、図10参照)を使用してもよい。これによれば、硬質ガラスは硬く表面に傷がつきにくいので、長期間にわたり透明度を維持することができる。特に、膨出した部分に硬質ガラスを取り付けることにより、透明度が維持される期間をさらに長くすることができる。硬質ガラスは内側壁部11bの内側に接着してもよく、あるいは内側壁部11bに開口部を形成し、開口部に硬質ガラスを固着するようにしてもよい。  It should be noted that a portion of theinner wall 11b through which the blade edge of thesaw blade 3 can be seen or the vicinity of theopening 4 through which thesaw blade 3 of theruler 2 passes is not a synthetic resin but a hard glass 22 (FIGS. 1 and 2). FIG. 6 and FIG. 10) may be used. According to this, since the hard glass is hard and hardly scratches the surface, the transparency can be maintained over a long period of time. In particular, by attaching hard glass to the bulged portion, the period during which the transparency is maintained can be further extended. The hard glass may be bonded to the inside of theinner wall portion 11b, or an opening may be formed in theinner wall portion 11b, and the hard glass may be fixed to the opening.

同様に、プロテクタ16、17は金属であるから、のこ刃3の刃先を透視することはできないが、その取付け領域は内周壁20とその近傍にのみ限定されるものではない。のこ刃3の刃先を透視する際の障害とならない限り、他の部分に延設させてもよい。  Similarly, since theprotectors 16 and 17 are metal, the cutting edge of thesaw blade 3 cannot be seen through, but the attachment region is not limited to the innerperipheral wall 20 and the vicinity thereof. Unless it becomes an obstacle at the time of seeing through the blade edge of thesaw blade 3, it may be extended to other portions.

次に、切断による切粉はプロテクタ16、17で覆った部分だけでなく、それ以外の部分にも飛び散るから、切断作業が繰り返されると、のこ刃3の先端を透視する内側壁部11bも徐々に白濁し、ついにはのこ刃3の先端が見えなくなる。このような状態になったときでも、のこ刃3の先端の直近に第1ののぞき窓18を設け、さらにその延長線上に第2ののぞき窓19を設けることで、のこ刃3の切断方向の情報を確認することができる。通常の場合、作業者は、被切断部材の表面に切断用のマークとして墨線を施しておき、定盤2の前部を被切断部材の上に置く。このとき、のこ刃3を被切断部材から少し離すので、墨線は第2ののぞき窓19から確認する。そして、のこ刃3の回転速度を最大にしてから、のこ刃3を被切断部材に近づけ、第1ののぞき窓18から切断位置を確認しながら切断を開始する。  Next, since the chips by cutting scatter not only in the parts covered by theprotectors 16 and 17 but also in other parts, when the cutting operation is repeated, theinner wall part 11b through which the tip of thesaw blade 3 is seen is also obtained. It gradually becomes cloudy and finally the tip of thesaw blade 3 becomes invisible. Even in such a state, thefirst sight glass 18 is provided in the immediate vicinity of the tip of thesaw blade 3, and thesecond sight glass 19 is provided on the extended line, thereby cutting thesaw blade 3. Direction information can be confirmed. In a normal case, an operator places a black line as a cutting mark on the surface of the member to be cut, and places the front portion of thesurface plate 2 on the member to be cut. At this time, since thesaw blade 3 is slightly separated from the member to be cut, the black line is confirmed from thesecond viewing window 19. Then, after the rotational speed of thesaw blade 3 is maximized, thesaw blade 3 is brought close to the member to be cut, and cutting is started while confirming the cutting position from thefirst viewing window 18.

なお、被切断部材に墨線を施さないときは、第1ののぞき窓18と第2ののぞき窓19から直接にのこ刃3の先端を直接に見て切断すべき部位に正確に狙いを合せて切断すればよい。このように、集塵ボックス11が白濁しても、第1又は第2ののぞき窓18又は19からのこ刃3の切断方向の情報を確認することができる。  When the black line is not applied to the member to be cut, the aim is precisely aimed at the portion to be cut by directly looking at the tip of thesaw blade 3 directly from the first andsecond sight windows 18 and 19. And cut it. Thus, even if thedust collection box 11 is clouded, information on the cutting direction of thesaw blade 3 from the first orsecond observation window 18 or 19 can be confirmed.

ところで、第1ののぞき窓18は、なるべくのこ刃3の先端に近い位置に配置するのが好ましい。近ければ近いほどよいが、開口部4から連続して延長形成すると、この部分の強度に影響が出るので、開口部4の前端部から1mm以上の位置に形成するのが好ましい。1mm以下では強度上問題が発生する。また、10mm以上になると、第1のぞき窓は定盤2の開口部4からのこ刃3の先端が見えにくくなる。  By the way, it is preferable to arrange | position the1st observation window 18 in the position near the front-end | tip of thesaw blade 3 as much as possible. The closer it is, the better. However, if it is continuously extended from theopening 4, the strength of this portion will be affected, so it is preferable to form it at a position of 1 mm or more from the front end of theopening 4. If it is 1 mm or less, a problem in strength occurs. Moreover, when it becomes 10 mm or more, it becomes difficult to see the front-end | tip of thesaw blade 3 from theopening part 4 of thesurface plate 2 at the 1st view window.

なお、のぞき窓は3個以上あってもよい。  There may be three or more viewing windows.

なお、のこ刃3の位置を容易に確認するためには、なるべく集塵ボックス11の形状を薄くするのが好ましい。特に、図3に示されるように、集塵ボックス11の外側壁部11cの前側形状を内側に絞り込んでくさび状の形状とするのがよい。これによれば、集塵ボックス11は前方が先細となるので、作業者が上からのぞいたときに、特に第1ののぞき窓18からのこ刃3の先端が見やすくなる。  In addition, in order to confirm the position of thesaw blade 3 easily, it is preferable to make the shape of thedust collection box 11 as thin as possible. In particular, as shown in FIG. 3, the front side shape of theouter wall portion 11c of thedust collection box 11 is preferably narrowed inward to have a wedge shape. According to this, since the front of thedust collection box 11 is tapered, it is easy to see the tip of thesaw blade 3 particularly from thefirst viewing window 18 when the operator peeks from above.

1 切断機本体
2 定盤
3 のこ刃
4 開口部
6 定盤2
11 集塵ボックス
11b 内側壁部
11c 外側壁部
16、17 プロテクタ
1 CuttingMachine Body 2Surface Plate 3Saw Blade 4 Opening 6Surface Plate 2
11Dust Collection Box11b Inner Wall11c Outer Wall 16, 17 Protector

Claims (5)

Translated fromJapanese
切断用ののこ刃を通す開口部を貫通形成した定盤の上部に、切断時に飛散した切粉を集めるための透明な合成樹脂製集塵ボックスを上記のこ刃の周囲を覆うように設けた携帯用切断機において、上記集塵ボックスは、半円弧状の周壁部と略半円形の内側壁部と外側壁部とによって構成され、上記周壁部の内周壁側と、上記内側壁部及び上記外側壁部と、に沿って金属製のプロテクタを取り付け、上記プロテクタを、透明な上記内側壁部側から上記のこ刃の刃先を透視するのに邪魔にならない位置に設け、上記集塵ボックスの内側壁部から上記のこ刃の刃先を透視可能としたことを特徴とする携帯用切断機。A transparent synthetic resin dust collection box is provided on the top of the surface plate that is formed through the opening to pass the cutting blade so as to cover the periphery of the saw blade. and the portable cutting,the dust collecting box is constituted by a peripheral wall and a substantially semi-circular inner wall and the outer wall of the semicircular arc, the inner peripheral wall ofthe peripheral wall portion,the inner wall portion andA metal protector is attached along the outer wall, and the protector isprovided at a position that does not interfere with the see-through of the blade edge of the saw blade from the transparent inner wall side, and the dust collecting box A portable cutting machine characterized in that the blade edge of the saw blade can be seen through from the inner wall portion. 上記のこ刃の刃先を透視可能な内側壁部を外側に膨出させ、のこ刃を通す上記開口部を外側に拡開させて形成したことを特徴とする、請求項1に記載の携帯用切断機。  The mobile phone according to claim 1, wherein an inner wall portion through which the blade tip of the saw blade can be seen is bulged outward, and the opening through which the saw blade is passed is expanded outward. Cutting machine. 上記集塵ボックスの内側壁部の内側に、硬質ガラスを接着したこと、または、上記集塵ボックスの内側壁部に開口部を形成し、この開口部に硬質ガラスを固着したことを特徴とする、請求項1又は2に記載の携帯用切断機。  Hard glass is adhered to the inside of the inner wall of the dust collection box, or an opening is formed in the inner wall of the dust collection box, and the hard glass is fixed to the opening. The portable cutting machine according to claim 1 or 2. 上記定盤には、集塵ボックスに覆われない位置で上記のこ刃の中心の延長上には、上記のこ刃の刃先に近い位置と遠い位置とにそれぞれ第1ののぞき窓と第2ののぞき窓とを開口形成し、第1ののぞき窓の開口形成された底角を結ぶ線と第2ののぞき窓の開口形成された前後の対角を結ぶ線とが上記のこ刃の延長上にあることを特徴とする、請求項1に記載の携帯用切断機。  On the surface plate, the first peep window and the second peek are located at positions near and far from the cutting edge of the saw blade on the extension of the center of the saw blade at a position not covered by the dust collection box. An extension of the blade is formed by opening a viewing window, and connecting a line connecting the bottom angle of the first monitoring window and a line connecting the front and rear diagonals of the second monitoring window. 2. The portable cutting machine according to claim 1, wherein the portable cutting machine is located above. 上記集塵ボックスの外側壁部の前側を絞り込んでくさび状にしたことを特徴とする、請求項4に記載の携帯用切断機。  The portable cutting machine according to claim 4, wherein the front side of the outer wall portion of the dust collection box is narrowed down into a wedge shape.
JP2010270320A2010-12-032010-12-03 Portable cutting machineActiveJP5500055B2 (en)

Priority Applications (2)

Application NumberPriority DateFiling DateTitle
JP2010270320AJP5500055B2 (en)2010-12-032010-12-03 Portable cutting machine
CN201110399471.0ACN102528854B (en)2010-12-032011-12-05Portable cutting machine

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP2010270320AJP5500055B2 (en)2010-12-032010-12-03 Portable cutting machine

Publications (2)

Publication NumberPublication Date
JP2012115969A JP2012115969A (en)2012-06-21
JP5500055B2true JP5500055B2 (en)2014-05-21

Family

ID=46337507

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP2010270320AActiveJP5500055B2 (en)2010-12-032010-12-03 Portable cutting machine

Country Status (2)

CountryLink
JP (1)JP5500055B2 (en)
CN (1)CN102528854B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN103506690B (en)*2012-06-292017-08-29博世电动工具(中国)有限公司Annular saw with chip barrier element
CN103537752B (en)*2012-07-132016-10-05苏州宝时得电动工具有限公司Portable cutter
CN106378491A (en)2012-07-132017-02-08苏州宝时得电动工具有限公司Portable cutting machine
JP6380931B2 (en)*2014-09-122018-08-29パナソニックIpマネジメント株式会社 Electric circular saw
CN110114178B (en)*2016-12-282021-07-09工机控股株式会社 Portable Cutter
JP7468154B2 (en)*2020-05-292024-04-16工機ホールディングス株式会社 Work Machine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS61172703A (en)*1985-01-281986-08-04日立工機株式会社Dust collector for portable electric tool
JPS62167002A (en)*1986-01-171987-07-23日立工機株式会社 Portable rotary cutting machine blade cover
JPS62144606U (en)*1986-03-071987-09-11
JPS6342801A (en)*1986-08-081988-02-24日立工機株式会社 Portable dust collection circular saw
JPH06278101A (en)*1993-03-261994-10-04Matsushita Electric Works LtdElectric circular saw
JP3214295B2 (en)*1995-05-122001-10-02日立工機株式会社 Portable dust collection circular saw
JP3802620B2 (en)*1996-09-032006-07-26新ダイワ工業株式会社 Dust collecting mechanism of portable circular saw device
JPH10113905A (en)*1996-10-111998-05-06Ryobi LtdCutter
JPH10202609A (en)*1997-01-281998-08-04Matsushita Electric Works LtdCircular saw
JP3661465B2 (en)*1999-01-082005-06-15日立工機株式会社 Metal cutting machine
JP2001062803A (en)*1999-08-272001-03-13Makita CorpCircular saw
JP2002240004A (en)*2001-02-162002-08-28Ryobi LtdDust collecting unit of circular saw
US6543143B2 (en)*2001-04-062003-04-08Black & Decker Inc.Metal cutting circular saw with integral sight window
US7526866B2 (en)*2003-10-312009-05-05Black & Decker Inc.Variable dust chute for circular saws
JP4466771B2 (en)*2008-07-072010-05-26パナソニック電工株式会社 Electric circular saw
JP5412089B2 (en)*2008-11-112014-02-12株式会社マキタ Cutting machine

Also Published As

Publication numberPublication date
CN102528854A (en)2012-07-04
CN102528854B (en)2016-02-24
JP2012115969A (en)2012-06-21

Similar Documents

PublicationPublication DateTitle
JP5500055B2 (en) Portable cutting machine
TW570855B (en)Circular saw
JP5093464B2 (en) Portable cutting machine
EP2039454A3 (en)Cutting angle indicator in jigsaw housing with dust extraction
CN101623874A (en)Electric saw
EP4324583A2 (en)Compact multi-material cut-off tool
US4741105A (en)Combined envelope opener and pencil sharpener unit
JP2007038645A (en) Dust collecting cover and cutter provided with the same
JP5162262B2 (en) Protective cover and electric tool with protective cover
EP2039453A3 (en)Housing of a cutting tool including blade storage, integral blade guard and motor ventilation pathway
CA3104419A1 (en)Circular saw
CN102343580B (en)Annular saw
JP4957228B2 (en) cutter
EP2886233A1 (en)Power circular saw
EP2953773B1 (en)Circular saw blade guard with scratch-resistant panel
JP5092567B2 (en) Portable tools
CN205888243U (en)Annular saw cutting machine
WO2011086736A1 (en)Cutting machine
KR920006075A (en) Blade grinder
JP2008114359A (en) Portable belt polishing machine
JPH05318403A (en)Motor-driven circular saw
JP3731856B2 (en) Portable circular saw
EP2995408A1 (en)Power circular saw
JP3144741U (en) Protective cover for brush cutter and brush cutter provided with the same
US20070062048A1 (en)Observation device for portable circular saws

Legal Events

DateCodeTitleDescription
A621Written request for application examination

Free format text:JAPANESE INTERMEDIATE CODE: A621

Effective date:20120824

A977Report on retrieval

Free format text:JAPANESE INTERMEDIATE CODE: A971007

Effective date:20130116

A131Notification of reasons for refusal

Free format text:JAPANESE INTERMEDIATE CODE: A131

Effective date:20130122

A521Written amendment

Free format text:JAPANESE INTERMEDIATE CODE: A523

Effective date:20130318

A131Notification of reasons for refusal

Free format text:JAPANESE INTERMEDIATE CODE: A131

Effective date:20130827

A521Written amendment

Free format text:JAPANESE INTERMEDIATE CODE: A523

Effective date:20130906

TRDDDecision of grant or rejection written
A01Written decision to grant a patent or to grant a registration (utility model)

Free format text:JAPANESE INTERMEDIATE CODE: A01

Effective date:20140212

A61First payment of annual fees (during grant procedure)

Free format text:JAPANESE INTERMEDIATE CODE: A61

Effective date:20140225

R150Certificate of patent or registration of utility model

Ref document number:5500055

Country of ref document:JP

Free format text:JAPANESE INTERMEDIATE CODE: R150


[8]ページ先頭

©2009-2025 Movatter.jp