JP2003251523A - Rotary shaft fixing device for power tool - Google Patents

Rotary shaft fixing device for power tool

Info

Publication number
JP2003251523A
JP2003251523A JP2002051198A JP2002051198A JP2003251523A JP 2003251523 A JP2003251523 A JP 2003251523A JP 2002051198 A JP2002051198 A JP 2002051198A JP 2002051198 A JP2002051198 A JP 2002051198A JP 2003251523 A JP2003251523 A JP 2003251523A
Authority
JP
Japan
Prior art keywords
rotary shaft
lock member
fixing device
locking
shaft fixing
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.)
Granted
Application number
JP2002051198A
Other languages
Japanese (ja)
Other versions
JP3936602B2 (en
Inventor
Kazuhiro Kakimoto
和宏 柿本
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.)
Ryobi Ltd
Original Assignee
Ryobi 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 Ryobi Ltd filed Critical Ryobi Ltd
Priority to JP2002051198A priority Critical patent/JP3936602B2/en
Publication of JP2003251523A publication Critical patent/JP2003251523A/en
Application granted granted Critical
Publication of JP3936602B2 publication Critical patent/JP3936602B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Sawing (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a rotary shaft of a power tool from biting a lock member. <P>SOLUTION: A rotary shaft fixing device for the power tool is constituted in such a way that a pair of flat faces 12a, 12b are provided in parallel on the rotary shaft 11, a lock member 14 having locking fringes 13a, 13b corresponding to the flat faces 12a, 12b is arranged in the direction crossing the rotary shaft to move the lock member 14 in the direction crossing the rotary shaft and engage or disengage the locking fringes 13a, 13b with/from the flat faces 12a, 12b in order to fix or release the rotary shaft 11. An inlet 18 and an innermost part 18a of the locking fringes 13a, 13b of the lock member 14 are formed into a fanning-out shape. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、丸鋸等の電動工具
の回転軸固定装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary shaft fixing device for a power tool such as a circular saw.

【0002】[0002]

【従来の技術】実開昭61−117655号公報は、デ
ィスクグラインダの回転軸固定装置について開示する。
この回転軸固定装置は、図7及び図8に示すように、回
転軸1に一対の平坦面2a,2bを平行に設け、該平坦
面2a,2bに対応した係止縁3a,3bを有するロッ
ク部材4を回転軸横断方向に配置し、該ロック部材4を
回転軸横断方向に移動させて係止縁3a,3bを平坦面
2a,2bに係脱させることにより回転軸1を固定又は
解放するようになっている。
2. Description of the Related Art Japanese Utility Model Laid-Open No. 61-117655 discloses a rotary shaft fixing device for a disc grinder.
As shown in FIGS. 7 and 8, this rotary shaft fixing device is provided with a pair of flat surfaces 2a and 2b in parallel with the rotary shaft 1 and has locking edges 3a and 3b corresponding to the flat surfaces 2a and 2b. The lock member 4 is arranged in the transverse direction of the rotation axis, and the lock member 4 is moved in the transverse direction of the rotation axis to engage and disengage the locking edges 3a, 3b with the flat surfaces 2a, 2b. It is supposed to do.

【0003】[0003]

【発明が解決しようとする課題】従来の回転軸固定装置
は、図8に示すように、刃物を交換する際に回転軸を回
転させる力が付加されるので、回転軸1の平坦面2a,
2bが円周面と交差する箇所に存在する角部5が、ロッ
ク部材4の係止縁3aに食い込むという問題を有する。
回転軸1の角部5がロック部材4の係止縁3aに食い込
むと、ロック部材4のアンロックを円滑に行い難い。
In the conventional rotary shaft fixing device, as shown in FIG. 8, a force for rotating the rotary shaft is added when the blade is exchanged, and therefore, the flat surface 2a of the rotary shaft 1,
There is a problem that the corner portion 5 existing at a position where 2b intersects the circumferential surface bites into the locking edge 3a of the lock member 4.
If the corner portion 5 of the rotary shaft 1 bites into the locking edge 3a of the lock member 4, it is difficult to smoothly unlock the lock member 4.

【0004】従って、本発明は、上記問題点を解決する
ことができる電動工具の回転軸固定装置を提供すること
を目的とする。
Therefore, an object of the present invention is to provide a rotary shaft fixing device for an electric power tool, which can solve the above problems.

【0005】[0005]

【課題を解決するための手段】上記課題を解決するた
め、請求項1に係る発明は、回転軸(11)に一対の平
坦面(12a,12b)を平行に設け、該平坦面(12
a,12b)に対応した係止縁(13a,13b)を有
するロック部材(14)を回転軸横断方向に配置し、該
ロック部材(14)を回転軸横断方向に移動させて係止
縁(13a,13b)を平坦面(12a,12b)に係
脱させることにより回転軸(11)を固定又は解放する
電動工具の回転軸固定装置において、上記ロック部材
(14)の係止縁(13a,13b)の入口(18)と
奥部(18a)を末広がり形に形成した電動工具の回転
軸固定装置を採用する。
In order to solve the above-mentioned problems, the invention according to claim 1 provides a pair of flat surfaces (12a, 12b) in parallel with a rotating shaft (11), and the flat surfaces (12).
The lock member (14) having the locking edges (13a, 13b) corresponding to (a, 12b) is arranged in the transverse direction of the rotation axis, and the locking member (14) is moved in the transverse direction of the rotation axis to lock the edge ( A rotary shaft fixing device for an electric tool, which locks or unlocks a rotary shaft (11) by engaging and disengaging a flat surface (12a, 12b) with a locking edge (13a, 13a, 13b) of the lock member (14). A rotary shaft fixing device for an electric tool in which the inlet (18) and the inner part (18a) of 13b) are formed in a divergent shape is adopted.

【0006】また、請求項2に係る発明は、回転軸(1
1)に一対の平坦面(12a,12b)を平行に設け、
該平坦面(12a,12b)に対応した係止縁(13
a,13b)を有するロック部材(14)を回転軸横断
方向に配置し、該ロック部材(14)を回転軸横断方向
に移動させて係止縁(13a,13b)を平坦面(12
a,12b)に係脱させることにより回転軸(11)を
固定又は解放する電動工具の回転軸固定装置において、
上記ロック部材(14)の係止縁(13a,13b)を
回転軸(11)の平坦面(12a,12b)よりも短く
形成した電動工具の回転軸固定装置を採用する。
According to the invention of claim 2, the rotary shaft (1
1) a pair of flat surfaces (12a, 12b) are provided in parallel,
Locking edge (13) corresponding to the flat surface (12a, 12b)
a, 13b) having a locking member (14) arranged in the transverse direction of the rotation axis, and moving the locking member (14) in the transverse direction of the rotation axis so that the locking edges (13a, 13b) are made flat (12).
a, 12b) for fixing or releasing the rotating shaft (11) by engaging and disengaging with the rotating shaft fixing device of the electric tool,
A rotary shaft fixing device for an electric tool in which the locking edges (13a, 13b) of the lock member (14) are formed shorter than the flat surfaces (12a, 12b) of the rotary shaft (11) is adopted.

【0007】[0007]

【発明の実施の形態】次に、本発明の実施の形態につい
て図面を参照して説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

【0008】<実施の形態1>図1に示すように、この
電動工具である丸鋸は、モータ等を内蔵したハウジング
6とベース7とを具備する。
<First Embodiment> As shown in FIG. 1, a circular saw which is an electric tool includes a housing 6 having a motor and the like built therein and a base 7.

【0009】図1及び図2に示すように、ハウジング6
は、モータにより回転駆動される刃物8の略上半分を覆
う固定カバー9を一体的に有し、刃物8の略下半分を覆
う移動カバー10をベアリングハウスを介して回転可能
に支持する。
As shown in FIGS. 1 and 2, the housing 6
Has integrally a fixed cover 9 that covers substantially the upper half of the blade 8 that is rotationally driven by a motor, and rotatably supports a movable cover 10 that covers the substantially lower half of the blade 8 via a bearing house.

【0010】ハウジング6は、各種ブラケット及び枢軸
を介してベース7に連結されることにより、ベース7に
対しその長辺に平行な軸と短辺に平行な軸をそれぞれ支
点にして傾動調整可能である。短辺に平行な軸を支点に
傾斜角を調整することで、刃物8のベース7下への突出
量を加減し切り込み深さを調整することができ、長辺に
平行な軸を支点に傾斜角を調整することで、刃物8のベ
ース7に対する傾斜角を加減しワークの切断面の角度を
調整することができる。
The housing 6 is connected to the base 7 via various brackets and pivots, so that the housing 7 can be tilted and adjusted with respect to the base 7 with axes parallel to its long sides and axes parallel to its short sides as fulcrums. is there. By adjusting the tilt angle with the axis parallel to the short side as the fulcrum, the amount of protrusion of the blade 8 below the base 7 can be adjusted to adjust the cutting depth, and the axis parallel to the long side can be used as the fulcrum to tilt. By adjusting the angle, the angle of inclination of the blade 8 with respect to the base 7 can be adjusted to adjust the angle of the cut surface of the work.

【0011】図2に示すように、この丸鋸は刃物8の回
転軸11を固定するための装置を備える。
As shown in FIG. 2, this circular saw is equipped with a device for fixing the rotary shaft 11 of the blade 8.

【0012】この回転軸固定装置は、図2乃至図4に示
すように、回転軸11に平坦面12a,12bを平行に
設け、該平坦面12a,12bに対応した係止縁13
a,13bを有するロック部材14を回転軸横断方向に
配置し、該ロック部材14を回転軸横断方向に移動させ
て係止縁13a,13bを平坦面12a,12bに係脱
させることにより回転軸11を固定又は解放するように
なっている。
In this rotary shaft fixing device, as shown in FIGS. 2 to 4, flat surfaces 12a and 12b are provided in parallel to the rotary shaft 11, and a locking edge 13 corresponding to the flat surfaces 12a and 12b.
By disposing the lock member 14 having a and 13b in the transverse direction of the rotation axis and moving the lock member 14 in the transverse direction of the rotation axis to engage and disengage the locking edges 13a and 13b with the flat surfaces 12a and 12b. 11 is fixed or released.

【0013】回転軸は、図3及び図4に示すように、回
転軸11の軸方向に平行に伸びる一対の平坦面12a,
12bを有するが、この平坦面12a,12bが回転軸
11の円周面と交差する箇所に角部19を有する。
As shown in FIGS. 3 and 4, the rotary shaft includes a pair of flat surfaces 12a extending parallel to the axial direction of the rotary shaft 11,
12b, the flat surface 12a, 12b has a corner portion 19 at a position intersecting the circumferential surface of the rotating shaft 11.

【0014】ロック部材14は、図2乃至図4に示すよ
うに、回転軸11を横断するように配置される板材であ
り、その中央部に回転軸11の最外周を囲む丸穴15
と、この丸穴15に連通する異形穴16とが形成され
る。ロック部材14は、復帰バネ17によりハウジング
6と一体の固定カバー9に連結され、丸穴15が回転軸
11を囲む位置へと常時付勢される。ロック部材14が
その一端に有する摘み片14aを把持されて復帰バネ1
7の付勢力に抗する向きに押されると、回転軸11の平
坦面12a,12bが形成された異形断面部に異形穴1
6が移動し回転軸11を回転しないようにロックする。
As shown in FIGS. 2 to 4, the lock member 14 is a plate member arranged so as to traverse the rotary shaft 11, and has a circular hole 15 surrounding the outermost periphery of the rotary shaft 11 at the center thereof.
And a deformed hole 16 communicating with the round hole 15 are formed. The lock member 14 is connected to the fixed cover 9 integrated with the housing 6 by the return spring 17, and the round hole 15 is constantly urged to the position surrounding the rotary shaft 11. The lock member 14 is grasped by the knob 14a at one end thereof and the return spring 1
7 is pressed in a direction against the biasing force of the deformed hole 7, the deformed hole 1 is formed in the deformed cross section of the rotary shaft 11 where the flat surfaces 12a and 12b are formed.
6 is moved and the rotating shaft 11 is locked so as not to rotate.

【0015】異形穴16は回転軸11の各平坦面12
a,12bに対応する一対の係止縁13a,13bを有
し、係止縁13a,13b間の幅が回転軸11の平坦面
12a,12b間の幅よりもやや大きくなるように形成
される。また、ロック部材14の係止縁13a,13b
の入口18は、八字形等の末広がり形に形成される。こ
れにより、図4と図8との対比から明らかなように、ロ
ック部材14の異形穴16内に回転軸11が嵌りこんだ
時に回転軸11の角部19が係止縁13aに食い込むこ
とがなく、従って、図4のロック位置にあるロック部材
14を図3のアンロック位置へと円滑に移動させること
ができる。
The deformed hole 16 is formed on each flat surface 12 of the rotary shaft 11.
It has a pair of locking edges 13a and 13b corresponding to a and 12b, and is formed such that the width between the locking edges 13a and 13b is slightly larger than the width between the flat surfaces 12a and 12b of the rotary shaft 11. . In addition, the locking edges 13a and 13b of the lock member 14
The entrance 18 is formed in a divergent shape such as an eight shape. As a result, as can be seen from the comparison between FIG. 4 and FIG. 8, when the rotary shaft 11 is fitted in the deformed hole 16 of the lock member 14, the corner portion 19 of the rotary shaft 11 may bite into the locking edge 13a. Therefore, the lock member 14 in the locked position shown in FIG. 4 can be smoothly moved to the unlocked position shown in FIG.

【0016】次に、上記構成の丸鋸の回転軸固定装置の
作用について説明する。
Next, the operation of the rotary shaft fixing device of the circular saw having the above-mentioned structure will be described.

【0017】ロック部材14が図2に示すアンロック位
置にあるとき、ロック部材14の丸穴15が回転軸11
に合致するので、モータの起動により回転軸11は刃物
8と一体で回転する。これにより、刃物8によるワーク
の切断が可能となる。
When the lock member 14 is in the unlocked position shown in FIG.
Therefore, when the motor is started, the rotary shaft 11 rotates integrally with the blade 8. As a result, the work can be cut by the blade 8.

【0018】モータが止められた後、ロック部材14が
復帰バネ17の付勢力に抗するように押され、その異形
穴16が図4に示すように回転軸11に合致するロック
位置へと移動すると、異形穴16の係止縁13a,13
bが回転軸11の平坦面12a,12bに係止し、回転
軸11及び刃物8の回転を阻止する。このロック状態で
刃物交換時に回転軸11を回転しようとする力が付加さ
れると、回転軸11の角部19が係止縁13a,13b
に食い込もうとするが、回転軸11の角部19は係止縁
13a,13bの末広がり形の入口18と奥部18aに
より食い込む力が逃がされ図8に示した食い込みの発生
が防止される。その結果、ロック部材14は復帰バネ1
7により引っ張られロック位置からアンロック位置へと
円滑に移行する。
After the motor is stopped, the lock member 14 is pushed against the urging force of the return spring 17, and the deformed hole 16 thereof moves to the lock position which matches the rotary shaft 11 as shown in FIG. Then, the locking edges 13a, 13 of the deformed hole 16
b engages with the flat surfaces 12a and 12b of the rotary shaft 11 to prevent the rotary shaft 11 and the blade 8 from rotating. When a force to rotate the rotary shaft 11 is applied when the blade is replaced in this locked state, the corner portion 19 of the rotary shaft 11 is locked by the locking edges 13a and 13b.
However, the corner portion 19 of the rotary shaft 11 is prevented from the biting force shown in FIG. It As a result, the lock member 14 is locked by the return spring 1.
It is pulled by 7 and smoothly shifts from the locked position to the unlocked position.

【0019】<実施の形態2>図5及び図6に示すよう
に、この実施の形態2に係る回転軸固定装置は、実施の
形態1の場合と同様に、回転軸11に平坦面12a,1
2bを平行に設け、該平坦面12a,12bに対応した
係止縁13a,13bを有するロック部材14を回転軸
横断方向に配置し、該ロック部材14を回転軸横断方向
に移動させて係止縁13a,13bを平坦面12a,1
2bに係脱させることにより回転軸11を固定又は解放
するようになっているが、上記ロック部材14の係止縁
13a,13bの幅Aは回転軸11の平坦面12a,1
2bの幅Bよりも短くなるように形成されている。
<Second Preferred Embodiment> As shown in FIGS. 5 and 6, the rotary shaft fixing device according to the second preferred embodiment has a flat surface 12a on the rotary shaft 11 as in the first preferred embodiment. 1
2b are provided in parallel, and a lock member 14 having locking edges 13a and 13b corresponding to the flat surfaces 12a and 12b is arranged in the rotation axis transverse direction, and the lock member 14 is moved in the rotation axis transverse direction and locked. The edges 13a and 13b are flat surfaces 12a and 1
The rotary shaft 11 is fixed or released by being engaged with and disengaged from the 2b. The width A of the locking edges 13a, 13b of the lock member 14 is equal to the flat surfaces 12a, 1 of the rotary shaft 11.
It is formed to be shorter than the width B of 2b.

【0020】このため、図6に示すロック状態で回転軸
11に回転方向の力が付加されても、回転軸11の角部
19に対応する位置に係止縁13aが存在せず、回転軸
11の角部19による図8に示したような食い込みの発
生が防止される。その結果、ロック部材14は復帰バネ
17(図2参照)により引っ張られロック位置からアン
ロック位置へと円滑に移行する。
Therefore, even if a force in the rotating direction is applied to the rotary shaft 11 in the locked state shown in FIG. 6, the locking edge 13a does not exist at a position corresponding to the corner portion 19 of the rotary shaft 11, and the rotary shaft 11 does not exist. The occurrence of the bite as shown in FIG. 8 due to the corner portion 19 of 11 is prevented. As a result, the lock member 14 is pulled by the return spring 17 (see FIG. 2) and smoothly moves from the locked position to the unlocked position.

【0021】[0021]

【発明の効果】請求項1に係る発明によれば、回転軸に
平坦面を平行に設け、該平坦面に対応した係止縁を有す
るロック部材を回転軸横断方向に配置し、該ロック部材
を回転軸横断方向に移動させて係止縁を平坦面に係脱さ
せることにより回転軸を固定又は解放する電動工具の回
転軸固定装置において、上記ロック部材の係止縁の入口
と奥部を末広がり形に形成した電動工具の回転軸固定装
置であるから、ロック状態で回転軸の角部が係止縁に食
い込もうとしても、回転軸の角部は係止縁の末広がり形
の入口と奥部により食い込む力が逃がされ、係止縁への
食い込みの発生が防止される。従って、ロック部材をロ
ック位置からアンロック位置へと円滑に移動させること
ができる。
According to the invention of claim 1, a flat surface is provided in parallel with the rotary shaft, and a lock member having a locking edge corresponding to the flat surface is arranged in the transverse direction of the rotary shaft. In the rotary shaft fixing device of the electric tool for fixing or releasing the rotary shaft by moving the lock shaft in the transverse direction of the rotary shaft to engage and disengage the lock edge with the flat surface, the entrance and the back of the lock edge of the lock member are Since it is a rotary shaft fixing device for a power tool that is formed in a divergent shape, even if the corner of the rotary shaft tries to bite into the locking edge in the locked state, the corner of the rotary shaft becomes the divergent inlet of the locking edge. The depth of the bite is released to prevent the bite from entering the locking edge. Therefore, the lock member can be smoothly moved from the lock position to the unlock position.

【0022】請求項2に係る発明によれば、回転軸に平
坦面を平行に設け、該平坦面に対応した係止縁を有する
ロック部材を回転軸横断方向に配置し、該ロック部材を
回転軸横断方向に移動させて係止縁を平坦面に係脱させ
ることにより回転軸を固定又は解放する電動工具の回転
軸固定装置において、上記ロック部材の係止縁を回転軸
の平坦面よりも短く形成した電動工具の回転軸固定装置
であるから、ロック状態で回転軸の角部が係止縁に食い
込もうとしても、回転軸の角部に対応する位置に係止縁
が存在せず、回転軸の角部によるロック部材への食い込
みの発生が防止される。従って、ロック部材をロック位
置からアンロック位置へと円滑に移動させることができ
る。
According to the second aspect of the present invention, a flat surface is provided in parallel with the rotary shaft, and a lock member having a locking edge corresponding to the flat surface is arranged in the transverse direction of the rotary shaft to rotate the lock member. In a rotary shaft fixing device of an electric tool for fixing or releasing a rotary shaft by moving in the transverse direction of the shaft and engaging and disengaging the lock edge with a flat surface, the locking edge of the lock member is more than the flat surface of the rotary shaft. Since it is a rotating shaft fixing device for electric tools that is formed short, even if the corner of the rotating shaft tries to bite into the locking edge in the locked state, the locking edge does not exist at the position corresponding to the corner of the rotating shaft. It is possible to prevent the corners of the rotating shaft from biting into the lock member. Therefore, the lock member can be smoothly moved from the lock position to the unlock position.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る回転軸固定装置を備えた丸鋸の正
面図である。
FIG. 1 is a front view of a circular saw provided with a rotary shaft fixing device according to the present invention.

【図2】図1中、II−II線矢視断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.

【図3】回転軸固定装置の要部をアンロック状態で示す
部分図である。
FIG. 3 is a partial view showing a main part of a rotary shaft fixing device in an unlocked state.

【図4】回転軸固定装置の要部をロック状態で示す部分
図である。
FIG. 4 is a partial view showing a main part of a rotary shaft fixing device in a locked state.

【図5】本発明の実施の形態2に係る回転軸固定装置の
要部をアンロック状態で示す部分図である。
FIG. 5 is a partial view showing a main part of a rotary shaft fixing device according to a second embodiment of the present invention in an unlocked state.

【図6】図5に示す回転軸固定装置の要部をロック状態
で示す部分図である。
FIG. 6 is a partial view showing a main part of the rotary shaft fixing device shown in FIG. 5 in a locked state.

【図7】従来の回転軸固定装置の要部をアンロック状態
で示す部分図である。
FIG. 7 is a partial view showing a main part of a conventional rotary shaft fixing device in an unlocked state.

【図8】図7に示す回転軸固定装置の要部をロック状態
で示す部分図である。
8 is a partial view showing a main part of the rotary shaft fixing device shown in FIG. 7 in a locked state.

【符号の説明】[Explanation of symbols]

11…回転軸 12a,12b…平坦面 13a,13b…係止縁 14…ロック部材 18…入口 11 ... Rotation axis 12a, 12b ... Flat surface 13a, 13b ... Locking edge 14 ... Lock member 18 ... Entrance

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 回転軸に一対の平坦面を平行に設け、該
平坦面に対応した係止縁を有するロック部材を回転軸横
断方向に配置し、該ロック部材を回転軸横断方向に移動
させて係止縁を平坦面に係脱させることにより回転軸を
固定又は解放する電動工具の回転軸固定装置において、
上記ロック部材の係止縁の入口と奥部を末広がり形に形
成したことを特徴とする電動工具の回転軸固定装置。
1. A pair of flat surfaces are provided in parallel to a rotary shaft, and a lock member having a locking edge corresponding to the flat surfaces is arranged in the transverse direction of the rotary shaft, and the lock member is moved in the transverse direction of the rotary shaft. In the rotary shaft fixing device of the electric tool for fixing or releasing the rotary shaft by engaging and disengaging the locking edge with the flat surface,
A rotary shaft fixing device for an electric power tool, characterized in that the entrance and the back of the locking edge of the locking member are formed in a divergent shape.
【請求項2】 回転軸に一対の平坦面を平行に設け、該
平坦面に対応した係止縁を有するロック部材を回転軸横
断方向に配置し、該ロック部材を回転軸横断方向に移動
させて係止縁を平坦面に係脱させることにより回転軸を
固定又は解放する電動工具の回転軸固定装置において、
上記ロック部材の係止縁を回転軸の平坦面よりも短く形
成したことを特徴とする電動工具の回転軸固定装置。
2. A pair of flat surfaces are provided in parallel with the rotary shaft, a lock member having a locking edge corresponding to the flat surfaces is arranged in the transverse direction of the rotary shaft, and the lock member is moved in the transverse direction of the rotary shaft. In the rotary shaft fixing device of the electric tool for fixing or releasing the rotary shaft by engaging and disengaging the locking edge with the flat surface,
A rotary shaft fixing device for an electric power tool, wherein a locking edge of the lock member is formed shorter than a flat surface of the rotary shaft.
JP2002051198A 2002-02-27 2002-02-27 Rotating shaft fixing device for electric tools Expired - Lifetime JP3936602B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002051198A JP3936602B2 (en) 2002-02-27 2002-02-27 Rotating shaft fixing device for electric tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002051198A JP3936602B2 (en) 2002-02-27 2002-02-27 Rotating shaft fixing device for electric tools

Publications (2)

Publication Number Publication Date
JP2003251523A true JP2003251523A (en) 2003-09-09
JP3936602B2 JP3936602B2 (en) 2007-06-27

Family

ID=28663238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002051198A Expired - Lifetime JP3936602B2 (en) 2002-02-27 2002-02-27 Rotating shaft fixing device for electric tools

Country Status (1)

Country Link
JP (1) JP3936602B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010274391A (en) * 2009-05-29 2010-12-09 Hitachi Koki Co Ltd Desktop cutting machine
JP2010274392A (en) * 2009-05-29 2010-12-09 Hitachi Koki Co Ltd Desktop cutting machine
JP2015016552A (en) * 2004-01-16 2015-01-29 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh Rotary shaft engagement mechanism
JP2019155576A (en) * 2018-03-16 2019-09-19 株式会社マキタ Power tool
US11331732B2 (en) 2019-05-22 2022-05-17 Makita Corporation Power tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103963024B (en) * 2013-01-30 2016-04-06 苏州宝时得电动工具有限公司 Power tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015016552A (en) * 2004-01-16 2015-01-29 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh Rotary shaft engagement mechanism
JP2010274391A (en) * 2009-05-29 2010-12-09 Hitachi Koki Co Ltd Desktop cutting machine
JP2010274392A (en) * 2009-05-29 2010-12-09 Hitachi Koki Co Ltd Desktop cutting machine
JP2019155576A (en) * 2018-03-16 2019-09-19 株式会社マキタ Power tool
JP7049145B2 (en) 2018-03-16 2022-04-06 株式会社マキタ Electric tool
JP7049145B6 (en) 2018-03-16 2022-04-19 株式会社マキタ Electric tool
US11331732B2 (en) 2019-05-22 2022-05-17 Makita Corporation Power tool

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