JPH0580624U - Saw blade holding structure for cutting tools - Google Patents
Saw blade holding structure for cutting toolsInfo
- Publication number
- JPH0580624U JPH0580624U JP2271192U JP2271192U JPH0580624U JP H0580624 U JPH0580624 U JP H0580624U JP 2271192 U JP2271192 U JP 2271192U JP 2271192 U JP2271192 U JP 2271192U JP H0580624 U JPH0580624 U JP H0580624U
- Authority
- JP
- Japan
- Prior art keywords
- saw blade
- pin
- saw
- plunger
- blade holding
- 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.)
- Withdrawn
Links
Landscapes
- Sawing (AREA)
Abstract
(57)【要約】
【目的】 本考案は取付け部の幅が違い用途の異なる2
種類ののこ刃を必要とする電気レシプロソーのような切
断工具ののこ刃保持構造に関するものであり、その目的
は、2種類ののこ刃のどちらを取り付けてもピンの根元
に隙間なく取り付けられるようにして、ピンを折れにく
くすることである。
【構成】 プランジャ3の先端に設けられたのこ刃取付
け部8に、幅の狭いのこ刃6Bに緊密に嵌合すると共に
のこ刃6Bの厚さよりも若干浅い厚さt′とした凹部1
3Bを設け、のこ刃保持部材4に幅の広いのこ刃6Aに
緊密に嵌合する凹部13Aを設けたことを特徴とする。
(57) [Abstract] [Purpose] The present invention has different widths of mounting parts and different uses.
The present invention relates to a saw blade holding structure for a cutting tool such as an electric reciprocating saw that requires two types of saw blades, and its purpose is to attach the two types of saw blades without leaving a gap at the base of the pin. To prevent the pin from breaking easily. [Structure] A saw blade mounting portion 8 provided at the tip of the plunger 3 is closely fitted to a saw blade 6B having a narrow width, and a recess having a thickness t'which is slightly shallower than the thickness of the saw blade 6B. 1
3B is provided, and the saw blade holding member 4 is provided with a concave portion 13A that is closely fitted to the wide saw blade 6A.
Description
【0001】[0001]
本考案は用途の異なる2種類ののこ刃を装着する電気レシプロソーのような切 断工具ののこ刃保持構造に関するものである。 The present invention relates to a saw blade holding structure for a cutting tool such as an electric reciprocating saw having two types of saw blades for different purposes.
【0002】[0002]
図1、図5、図6を用いて従来ののこ刃保持部材によるのこ刃保持構造を説明 する。プランジャ3の先端に一体成形されているのこ刃取付け部8と、のこ刃保 持部材4によりのこ刃6を挟持し該のこ刃6の往復動により被削材を切断する切 断工具は、取付け部の幅が違う用途の異なった複数ののこ刃6を必要とするため 従来ののこ刃保持構造は図5、図6に示すように、のこ刃保持部材4の同一面に 2種類ののこ刃6A、6Bの両方の幅にあう2段階の凹部と、のこ刃6のピン挿 入穴12と係合するピン11が設けられている。 A conventional saw blade holding structure using a saw blade holding member will be described with reference to FIGS. 1, 5, and 6. Saw blade mounting portion 8 formed integrally with the tip of the plunger 3 and the saw blade holding member 4 sandwiches the saw blade 6, and the reciprocating movement of the saw blade 6 cuts the work material. Since the tool requires a plurality of saw blades 6 having different widths of mounting portions and different uses, the conventional saw blade holding structure has the same saw blade holding member 4 as shown in FIGS. The surface is provided with a two-step concave portion that fits both widths of the two types of saw blades 6A and 6B, and a pin 11 that engages with a pin insertion hole 12 of the saw blade 6.
【0003】[0003]
通常幅の広いのこ刃6Aは高荷重をかけて使用され、幅の狭いのこ刃6Bは低 荷重で使用される。図5のように幅の広いのこ刃6Aを取り付けて作業を行った 場合、幅の狭いのこ刃6Bに嵌合する溝の凹部の上に重なるため、のこ刃6Aと のこ刃保持部材4の間には隙間14が生じるため、幅の狭いのこ刃6Bを取り付 けた場合に比べピン11根元からの荷重点の距離が長くなり、ピン11の先端部 に非常に大きな曲げモーメントが働きピン11は根元から折れやすくなる。 Normally, the wide saw blade 6A is used under a high load, and the narrow saw blade 6B is used under a low load. As shown in Fig. 5, when the wide saw blade 6A is attached and the work is performed, the saw blade 6A and the saw blade are held because the saw blade 6A is overlapped with the recess of the groove that fits into the narrow saw blade 6B. Since a gap 14 is formed between the members 4, the distance from the root of the pin 11 to the load point is longer than when a narrow saw blade 6B is attached, and the tip of the pin 11 has a very large bending moment. Works, and the pin 11 is easily broken from the root.
【0004】 またピン11を平坦なプランジャ3側に設けた場合は2種類ののこ刃6A、6 B共、ピン11の根元に隙間なく取り付き折れにくくなるが、切断中ののこ刃6 が被削材に挾まれ過大な負荷がピン11に作用し、ピン11根元から剪断される ことがある。プランジャ3に一体成形されているピンが剪断されれば、プランジ ャ3は非常に高価なので修理費が高くなる。またピン11がプランジャ3に対し 交換可能に取り付けられていても、プランジャ3を本体から取り外すのに機構部 からの分解が必要となるため、交換が非常に困難であるという問題があった。 本考案の目的は、のこ刃保持部材を交換することなく2種類ののこ刃を取付け 可能なままピンを折れにくくし、なおかつピンが折れた場合でも安価でかつ容易 に交換できるようにすることである。When the pin 11 is provided on the side of the flat plunger 3, both the two types of saw blades 6A and 6B are hard to attach and break without a gap at the base of the pin 11, but the saw blade 6 during cutting is There is a case where the work is caught in the work material and an excessive load acts on the pin 11, and the pin 11 is sheared from its root. If the pin formed integrally with the plunger 3 is sheared, the plunger 3 will be very expensive and the repair cost will be high. Further, even if the pin 11 is attached to the plunger 3 in a replaceable manner, there is a problem that replacement is very difficult because the mechanism must be disassembled to remove the plunger 3 from the main body. The purpose of the present invention is to make it possible to attach two kinds of saw blades without replacing the saw blade holding member, to make the pins hard to break, and to make it possible to replace the pins cheaply and easily even if they break. That is.
【0005】[0005]
上記目的は、のこ刃保持部材側に幅の広いのこ刃用の凹部とピンを設け、プラ ンジャ側に幅の狭いのこ刃用の凹部を設けることにより達成される。 The above-mentioned object can be achieved by providing a concave portion and a pin for a wide saw blade on the saw blade holding member side and a narrow concave portion for a saw blade on the plunger side.
【0006】[0006]
上記のように構成された切断工具では、のこ刃保持部材側に幅の広いのこ刃用 の凹部とピンとを設け、プランジャ側に幅の狭いのこ刃用の凹部を設けたので、 のこ刃保持部材を交換することなく2種類ののこ刃を取り付けることができ、か つ2種類ののこ刃ともピンの根元に突き当たるように取り付けられるため、ピン に高荷重が加わりやすい幅の広いのこ刃を取り付けた場合でもピンが折れにくく なる。また、ピンはのこ刃保持部材側に設けたので、ピンが折れた場合でも安価 で容易に交換することができる。 In the cutting tool configured as described above, the concave portion for the wide saw blade and the pin are provided on the saw blade holding member side, and the concave portion for the narrow saw blade is provided on the plunger side. Two types of saw blades can be attached without exchanging the saw blade holding member, and both types of saw blades are attached so as to abut the root of the pin, so that a width where the high load is easily applied to the pin Pins are hard to break even when a wide saw blade is attached. Further, since the pin is provided on the saw blade holding member side, even if the pin is broken, it can be easily replaced at low cost.
【0007】[0007]
本考案の一実施例を図1〜図4を用いて説明する。 図1に示すようにモータ1からの回転運動がギヤカバー2内部の機構部を経て プランジャ3の往復運動へと変換される。図2、図3において、プランジャ3の 先端部に設けられたのこ刃取付け部8と、幅の広いのこ刃6Aに緊密に嵌合する ような溝13Aをのこ刃保持部材4に形成する。また図2、図4において、のこ 刃取付け部8に幅の狭いのこ刃6Bの厚さtよりも若干浅いt′の厚さの凹部1 3Bを設けた。のこ刃保持部材4にはのこ刃6A又は6Bを嵌合させた状態での こ刃6のピン挿入穴12と一致するピン11を形成すると共に、のこ刃6の切欠 き部9と一致しかつ前記のこ刃取付け部8に設けられたねじ穴5と一致するよう な一関係に貫通穴10が形成されている。幅の広いのこ刃6Aはのこ刃保持部材 4に形成された凹部13Aとのこ刃取付け部8の間に、また幅の狭いのこ刃6B はのこ刃取付け部8に形成された凹部13Bとのこ刃保持部材4の間にそれぞれ ねじ7により挟持される。 An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the rotational movement from the motor 1 is converted into the reciprocating movement of the plunger 3 via the mechanical portion inside the gear cover 2. In FIG. 2 and FIG. 3, a saw blade attaching portion 8 provided at the tip of the plunger 3 and a groove 13A for tightly fitting the wide saw blade 6A are formed in the saw blade holding member 4. To do. 2 and 4, the saw blade mounting portion 8 is provided with a concave portion 13B having a thickness t ', which is slightly shallower than the thickness t of the narrow saw blade 6B. The saw blade holding member 4 is formed with a pin 11 which is aligned with the pin insertion hole 12 of the saw blade 6 with the saw blade 6A or 6B fitted, and the cutout portion 9 of the saw blade 6 is formed. Through holes 10 are formed so as to coincide with each other and to coincide with the screw holes 5 provided in the saw blade mounting portion 8. The wide saw blade 6A is between the recess 13A formed in the saw blade holding member 4 and the saw blade mounting portion 8, and the narrow saw blade 6B is the recess 13B formed in the saw blade mounting portion 8. It is clamped between the saw blade holding members 4 by screws 7.
【0008】 更にのこ刃保持部材4は背中合わせに貫通穴10を共通とし、ピン11や凹部 13Aを同一形状同一位置関係に形成することにより一方のピン11が破損した としてももう一面を使用することができる。Further, the saw blade holding member 4 has a common through hole 10 for back to back, and by forming the pin 11 and the recess 13A in the same shape and the same positional relationship, even if one pin 11 is damaged, the other surface is used. be able to.
【0009】[0009]
本考案によれば、のこ刃保持部材に幅の広いのこ刃用の凹部とピンを設け、プ ランジャののこ刃取付け部に幅の狭いのこ刃用の凹部を設けたので、2種類のの こ刃共ピンの根元に突き当たるように取り付けることができ、高荷重がかかりや すい幅の広いのこ刃を取り付けた場合でも、ピンの根元にかかる曲げ応力が小さ くなるためピンが折れにくくなる。 According to the present invention, since the saw blade holding member is provided with the recess and pin for the wide saw blade, and the saw blade mounting portion of the plunger is provided with the recess for the narrow saw blade, Both types of saw blades can be mounted so as to abut the root of the pin, and even when a saw blade with a wide width and high load is attached, the bending stress applied to the root of the pin is small Hard to break.
【図1】 本考案の一実施例を示す断面側面図。FIG. 1 is a sectional side view showing an embodiment of the present invention.
【図2】 本考案ののこ刃保持構造を示す斜視図。FIG. 2 is a perspective view showing a saw blade holding structure of the present invention.
【図3】 本考案切断工具に幅の広いのこ刃を取り付け
た場合の正面図。FIG. 3 is a front view when a wide saw blade is attached to the cutting tool of the present invention.
【図4】 本考案切断工具に幅の狭いのこ刃を取り付け
た場合の正面図。FIG. 4 is a front view when a narrow saw blade is attached to the cutting tool of the present invention.
【図5】 従来ののこ刃保持構造で幅広いのこ刃の取付
けた場合の正面図。FIG. 5 is a front view of a conventional saw blade holding structure with a wide saw blade attached.
【図6】 従来ののこ刃保持構造で幅広いのこ刃の取付
けた場合の正面図。FIG. 6 is a front view of a conventional saw blade holding structure with a wide saw blade attached.
1はモータ、2はギヤカバー、3はプランジャ、4はの
こ刃保持部材、5はねじ穴、6はのこ刃、6Aは幅の広
いのこ刃、6Bは幅の狭いのこ刃、7はねじ、8はのこ
刃取付け部、9は切欠き部、10は貫通穴、11はピ
ン、12はピン挿入穴、13は凹部、14は隙間であ
る。1 is a motor, 2 is a gear cover, 3 is a plunger, 4 is a saw blade holding member, 5 is a screw hole, 6 is a saw blade, 6A is a wide saw blade, 6B is a narrow saw blade, 7 Is a screw, 8 is a saw blade mounting portion, 9 is a notch portion, 10 is a through hole, 11 is a pin, 12 is a pin insertion hole, 13 is a concave portion, and 14 is a gap.
Claims (1)
該プランジャの先端に一体成形されているのこ刃取付け
部とのこ刃保持部材との間にのこ刃を保持し、該のこ刃
の往復動により被削材を切断する切断工具において、 前記のこ刃保持部材側に幅の広いのこ刃が装着される凹
部及びのこ刃のピン挿入穴と係合するピンを設けると共
に前記プランジャののこ刃取付け部には幅の狭いのこ刃
が装着される凹部を設け、のこ刃の幅が異なる二種類の
のこ刃を保持可能としたことを特徴とする切断工具のの
こ刃保持構造。1. A plunger driven by a motor,
A cutting tool for holding a saw blade between a saw blade mounting portion and a saw blade holding member integrally formed at the tip of the plunger, and cutting a work material by reciprocating movement of the saw blade, On the side of the saw blade holding member, a recess for mounting a wide saw blade and a pin that engages with a pin insertion hole of the saw blade are provided, and a narrow saw blade is attached to the saw blade mounting portion of the plunger. A saw blade holding structure for a cutting tool, which is provided with a concave portion to be mounted so that two types of saw blades having different widths can be held.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2271192U JPH0580624U (en) | 1992-04-10 | 1992-04-10 | Saw blade holding structure for cutting tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2271192U JPH0580624U (en) | 1992-04-10 | 1992-04-10 | Saw blade holding structure for cutting tools |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0580624U true JPH0580624U (en) | 1993-11-02 |
Family
ID=12090421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2271192U Withdrawn JPH0580624U (en) | 1992-04-10 | 1992-04-10 | Saw blade holding structure for cutting tools |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0580624U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011161576A (en) * | 2010-02-10 | 2011-08-25 | Hitachi Koki Co Ltd | Reciprocating tool |
-
1992
- 1992-04-10 JP JP2271192U patent/JPH0580624U/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011161576A (en) * | 2010-02-10 | 2011-08-25 | Hitachi Koki Co Ltd | Reciprocating tool |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19960801 |