JP2006102925A - Power tool - Google Patents

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Publication number
JP2006102925A
JP2006102925A JP2004297027A JP2004297027A JP2006102925A JP 2006102925 A JP2006102925 A JP 2006102925A JP 2004297027 A JP2004297027 A JP 2004297027A JP 2004297027 A JP2004297027 A JP 2004297027A JP 2006102925 A JP2006102925 A JP 2006102925A
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Japan
Prior art keywords
cover
impact
motor
impact mechanism
protrusion
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Withdrawn
Application number
JP2004297027A
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Japanese (ja)
Inventor
Takuya Teranishi
卓也 寺西
Takuma Saito
琢磨 斉藤
Toshihiko Tachibana
俊彦 立花
Yuichi Sato
友一 佐藤
Masato Sakai
正登 坂井
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki Co Ltd
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Publication date
Application filed by Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP2004297027A priority Critical patent/JP2006102925A/en
Publication of JP2006102925A publication Critical patent/JP2006102925A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an impact tool good in operability. <P>SOLUTION: The impact tool is equipped with an impact mechanism part to generate pulsated impact torque, a cover to cover the impact mechanism part, a motor to drive the impact mechanism part, and a decelerating mechanism part installed between the impact mechanism part and the motor, wherein projections are formed on the outside surface of the cover, at least five pieces at uniform intervals over the peripheral circumference of the cover, and each projection is shaped so that its side in the axial direction is larger than in the circumferential direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電動工具の操作性を向上させる技術に関するものであり、特にカバーを備えた電動工具に関するものである。   The present invention relates to a technique for improving the operability of a power tool, and particularly to a power tool provided with a cover.

図1に示されるような従来のインパクト工具には、インパクト機構部を保護するハンマケース2が設けられている。近年図2に示すようなカバー25を設けたインパクト工具が多く見うけられる。このようなカバー25はハンマケース2による相手部材へのこすれ傷を防止したり、インパクト本体が不注意で落下させた場合のクッションの役目を果たしたり、さらにはハンマケース2からの熱伝達を防止することができるため、作業者が慎重な作業をするためにハンマケース2部分を握るような場合に、作業者への火傷防止に役立っている。   A conventional impact tool as shown in FIG. 1 is provided with a hammer case 2 for protecting the impact mechanism. In recent years, many impact tools provided with a cover 25 as shown in FIG. 2 can be seen. Such a cover 25 prevents the hammer case 2 from rubbing against the mating member, acts as a cushion when the impact body is inadvertently dropped, and further prevents heat transfer from the hammer case 2. Therefore, when the operator grasps the hammer case 2 portion to perform careful work, it helps to prevent burns to the worker.

また図3に示すように、大きなボルト(M16〜)を締め付けるために、大型(全長250mm〜、本体重量2.5kg〜)でしかも大きなトルク(250N・m〜)を発生するインパクトレンチ30においては、片手でスイッチ31を引き、もう片方の手でカバー40を持つ場合が多く、カバー40の材質にはゴムを用いている。さらに図4に示すようにカバー40の両脇には数本の直線状突起41を設けてすべり止め施し、作業性を向上させている。   In addition, as shown in FIG. 3, in order to tighten a large bolt (M16 ~), in an impact wrench 30 that generates a large torque (250mm. In many cases, the switch 31 is pulled with one hand and the cover 40 is held with the other hand, and the cover 40 is made of rubber. Further, as shown in FIG. 4, several linear protrusions 41 are provided on both sides of the cover 40 to prevent slipping, thereby improving workability.

特開2003−245865号公報JP 2003-245865 A

図5に示すように、前記従来のインパクト工具のカバー40を握る場合、手がカバー40に接触する主要な場所としては親指部42、その他の指部43及び手のひら部44の主にこの3箇所である。   As shown in FIG. 5, when gripping the cover 40 of the conventional impact tool, the main part where the hand contacts the cover 40 is mainly the thumb part 42, the other finger part 43 and the palm part 44. It is.

そこで、カバー40に数本の直線状突起41を設けてすべり止めを行っているが、図5に示すような手角度の状態では、親指部42とその他の指部43の位置に突起41が配置されているため、突起41がすべり止めの効果を発揮する。しかし、図6に示すような状態では、親指部42とその他の指部43の位置に突起41が配置されてないため、突起41がすべり止めの効果を発揮することができないという問題がある。   Therefore, the cover 40 is provided with several linear protrusions 41 to prevent slipping. However, when the hand angle is as shown in FIG. 5, the protrusions 41 are located at the positions of the thumb part 42 and other finger parts 43. Since they are arranged, the protrusion 41 exhibits an anti-slip effect. However, in the state shown in FIG. 6, there is a problem that the protrusion 41 cannot exhibit the effect of preventing the slip because the protrusion 41 is not disposed at the position of the thumb part 42 and the other finger parts 43.

本発明の目的は、より操作性の良いインパクト工具を提供することにある。   An object of the present invention is to provide an impact tool with better operability.

パルス的な衝撃トルクを発生させるインパクト機構部と、該インパクト機構部を覆うカバーと、該インパクト機構部を駆動させるモータと、該インパクト機構部と該モータ間に配置した減速機構部と、を備えたインパクト工具において、該カバーの外表面に突起を設け、該突起が該カバーの全周に均等にすくなくとも5個以上は配置されており、該突起は周方向に比べて軸方向に長くなるように構成する。   An impact mechanism that generates a pulsed impact torque; a cover that covers the impact mechanism; a motor that drives the impact mechanism; and a speed reduction mechanism disposed between the impact mechanism and the motor. In the impact tool, a protrusion is provided on the outer surface of the cover, and at least five protrusions are arranged evenly on the entire circumference of the cover so that the protrusion is longer in the axial direction than in the circumferential direction. Configure.

より好ましくは、該突起は、第1の辺が大きなRもしくは直線で構成されており、該第1の辺に対して軸と対象な位置にある第2の辺は、三角形の二つの短辺から構成する。   More preferably, the protrusion is configured by a large R or straight line on the first side, and the second side at the target position with respect to the axis with respect to the first side is the two short sides of the triangle Consists of.

さらに好ましくは、該短辺間の頂点が軸方向の長さに対して半分よりもモータ側に位置するように構成する。   More preferably, it is configured such that the apex between the short sides is positioned closer to the motor side than half the length in the axial direction.

請求項1に記載の構成によれば、カバーを把持する手の角度・位置に関わらず、突起が滑り止めとして作用する。従って、操作性の良い電動工具を提供することができる。   According to the configuration of the first aspect, the protrusion acts as a slip stopper regardless of the angle and position of the hand holding the cover. Therefore, an electric tool with good operability can be provided.

請求項2記載の構成によれば、第1の辺にかかった指はスムーズに辺上を動くことができ、第2の辺にかかった指は頂点がひっかかりとなることで辺上を動きにくくなる。これにより、電動工具を相手材に合わせて位置決めする時に作業しやすくなる。従って、操作性の良い電動工具を提供することができる。   According to the configuration of the second aspect, the finger on the first side can move smoothly on the side, and the finger on the second side is difficult to move on the side because the apex is caught. Become. Thereby, it becomes easy to work when positioning an electric tool according to a partner material. Therefore, an electric tool with good operability can be provided.

請求項3記載の構成によれば、人差し指、中指、薬指が反モータ側の短辺に、小指がモータ側の短辺にかかりる。力の強い人差し指、中指、薬指が揃うことによって把持力が増し、力の弱い小指が頂点に引っ掛かることで軸方向の位置がずれにくくなる。従って、操作性の良い電動工具を提供することができる。   According to the configuration of the third aspect, the index finger, the middle finger, and the ring finger are applied to the short side on the counter motor side, and the little finger is applied to the short side on the motor side. When the strong index finger, middle finger, and ring finger are aligned, the gripping force is increased, and the little finger with weak force is caught on the apex, so that the position in the axial direction is difficult to shift. Therefore, an electric tool with good operability can be provided.

以下実施例図面を参照して本発明を説明する。   Hereinafter, the present invention will be described with reference to the accompanying drawings.

図7に本発明のカバー50を示す。カバー50には突起51が円周方向に均等に12個配置されており、突起51は軸方向に長く円周方向に短い形状で、突起51の軸方向に対して第1の辺である右辺52は大きなRを形成している。第1の辺に対して軸と対象な位置にある第2の辺である左辺53は、三角形の二つの短辺53aと53bから構成されおり、その短辺間の頂点53cが軸方向の長さに対して半分よりも手前(図では左方向)に位置している。短辺53aよりも53bの方が短い。   FIG. 7 shows the cover 50 of the present invention. Twelve protrusions 51 are equally arranged in the circumferential direction on the cover 50, the protrusions 51 are long in the axial direction and short in the circumferential direction, and the right side that is the first side with respect to the axial direction of the protrusions 51. 52 forms a large R. The left side 53, which is the second side located at the target position with respect to the axis with respect to the first side, is composed of two short sides 53a and 53b of the triangle, and the vertex 53c between the short sides is the length in the axial direction. It is located on the near side (left direction in the figure) more than half. 53b is shorter than the short side 53a.

図8に示すように、右辺52の突起部54は親指により引っ掛かることですべり止めの効果を発揮され、一方の人差し指は55、中指は56、薬指は57において右辺53aの突起部に引っ掛かり、小指は58において右辺の53bに形状良く引っ掛かるため、すべり止めの効果を発揮しやすい。人差し指から小指にかけての4本は、カバー50を握っている時は比較的固定しているが、インパクト工具本体を微少に動かしてボルトに位置合わせするために、親指側は微少に移動しやすいように突起51の右辺52は滑らかなRか直線で構成されている。   As shown in FIG. 8, the protrusion 54 on the right side 52 is hooked by the thumb, so that the effect of preventing slipping is exerted. Is easily hooked to the right-hand side 53b at 58, so that it is easy to exert an anti-slip effect. The four fingers from the index finger to the little finger are relatively fixed when grasping the cover 50, but the thumb side is likely to move slightly because the impact tool body is moved slightly to align with the bolt. In addition, the right side 52 of the protrusion 51 is formed of a smooth R or straight line.

さらに図9及び図10に示すように、突起51をカバー50の全周に配置しているため、手の握り角度位置に関わらず、すべり止めの効力を有効に使用することが可能である。   Further, as shown in FIGS. 9 and 10, since the protrusions 51 are arranged on the entire circumference of the cover 50, the anti-slip effect can be effectively used regardless of the hand grip angle position.

なお図11に示すように、小さなサイズのカバー60においても図7と同様の突起61を施すことで、すべり止めの効果を発揮することが可能で、さらに左利き用は60で、突起の右辺と左辺を入れかえることで、右利き用62に変更することも可能である。   As shown in FIG. 11, even with a small-sized cover 60, it is possible to exert an anti-slip effect by providing the same protrusion 61 as in FIG. It is also possible to change to the right-handed 62 by replacing the left side.

特許文献1における従来インパクト工具の外観図である。It is an external view of the conventional impact tool in patent document 1. 特許文献1における従来のカバーを施したインパクト工具の外観図である。It is an external view of the impact tool which gave the conventional cover in patent documents 1. 従来の他のインパクト工具の外観図である。It is an external view of another conventional impact tool. 従来の他のインパクト工具のカバー外観図である。It is a cover external view of the other conventional impact tool. 従来の他のインパクト工具のカバーへの下からの握り様子図である。It is a state of gripping from the bottom to the cover of another conventional impact tool. 従来の他のインパクト工具のカバーへの横からの握り様子図である。It is a state of gripping from the side to the cover of another conventional impact tool. 本発明のインパクト工具のカバー外観図である。It is a cover external view of the impact tool of this invention. 本発明のインパクト工具のカバーへの指握り部を図示した図である。It is the figure which illustrated the finger grip part to the cover of the impact tool of this invention. 本発明のインパクト工具のカバーへの下からの握り様子図である。It is a grip state figure from the bottom to the cover of the impact tool of this invention. 本発明のインパクト工具のカバーへの横からの握り様子図である。It is a state of gripping from the side to the cover of the impact tool of the present invention. 本発明のインパクト工具の他の実施例であるカバー外観図である。It is a cover external view which is another Example of the impact tool of this invention. 本発明のインパクト工具の他の実施例であるカバー外観図である。It is a cover external view which is another Example of the impact tool of this invention.

符号の説明Explanation of symbols

1はハウジング,2はハンマケース,25はカバー,40はカバー,41は直線状突起,50はカバー,51は突起,52は第1の辺、53は第2の辺,60はカバー,61は突起、62はカバー,63は突起である。
1 is a housing, 2 is a hammer case, 25 is a cover, 40 is a cover, 41 is a linear protrusion, 50 is a cover, 51 is a protrusion, 52 is a first side, 53 is a second side, 60 is a cover, 61 Is a protrusion, 62 is a cover, and 63 is a protrusion.

Claims (3)

パルス的な衝撃トルクを発生させるインパクト機構部と、
該インパクト機構部を覆うカバーと、
該インパクト機構部を駆動させるモータと、
該インパクト機構部と該モータ間に配置した減速機構部と、
を備えたインパクト工具において、
該カバーの外表面に突起を設け、該突起が該カバーの全周に均等にすくなくとも5個以上は配置されており、該突起は周方向に比べて軸方向に長いことを特徴とする電動工具。
An impact mechanism that generates a pulse-like impact torque;
A cover covering the impact mechanism,
A motor for driving the impact mechanism,
A speed reduction mechanism disposed between the impact mechanism and the motor;
In impact tools with
A power tool characterized in that a projection is provided on the outer surface of the cover, and at least five or more projections are arranged evenly on the entire circumference of the cover, and the projections are longer in the axial direction than in the circumferential direction. .
該突起は、第1の辺が大きなRもしくは直線で構成されており、該第1の辺に対して軸と対象な位置にある第2の辺は、三角形の二つの短辺から構成されていることを特徴とする請求項1記載の電動工具。 The protrusion has a large R or straight line on the first side, and the second side at the target position with respect to the first side is composed of two short sides of the triangle. The power tool according to claim 1, wherein 該短辺間の頂点が軸方向の長さに対して半分よりもモータ側に位置することを特徴とする請求項2記載の電動工具。
3. The electric tool according to claim 2, wherein the apex between the short sides is located closer to the motor side than half the length in the axial direction.
JP2004297027A 2004-10-08 2004-10-08 Power tool Withdrawn JP2006102925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004297027A JP2006102925A (en) 2004-10-08 2004-10-08 Power tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004297027A JP2006102925A (en) 2004-10-08 2004-10-08 Power tool

Publications (1)

Publication Number Publication Date
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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004297027A Withdrawn JP2006102925A (en) 2004-10-08 2004-10-08 Power tool

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102361731A (en) * 2009-03-28 2012-02-22 博朗公司 Surface structure for a working device
JP2014028412A (en) * 2012-07-31 2014-02-13 Makita Corp Power tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102361731A (en) * 2009-03-28 2012-02-22 博朗公司 Surface structure for a working device
JP2012521305A (en) * 2009-03-28 2012-09-13 ブラウン ゲーエムベーハー Work device gripping area
JP2014028412A (en) * 2012-07-31 2014-02-13 Makita Corp Power tool

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