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1. 发明授权

US5601149A Noise reduction mechanism for percussion tools 失效
标题翻译：打击乐器降噪机构
公开(公告)号：US5601149A
公开(公告)日：1997-02-11
申请号：US378374
申请日：1995-01-25
申请人： Yoshimitsu Kawasaki , Mitsuyuki Ishikawa , Takao Tanabe , Toshiaki Uchida
发明人： Yoshimitsu Kawasaki , Mitsuyuki Ishikawa , Takao Tanabe , Toshiaki Uchida
IPC分类号： B23B45/16 , B25B21/02 , B25D17/11 , B25D17/24
CPC分类号： B25D17/24 , B25B21/02 , B25B21/026 , B25D17/11
摘要： A percussion hammer tool comprises a spindle 1 causing rotation about an axis thereof. The spindle 1 is driven by a motor M. A hammer 3, slidably coupled with the spindle 1, generates a percussion force to rotate and hit an anvil. The anvil is divided into an engaging portion 7 engageable with the hammer 3 and a tip tool holding portion 8 holding a tip tool 16. The engaging portion 7 and the tip tool holding portion 8 are locked with each other. A torque transmitting mechanism 11 makes the engaging portion 7 and the tip tool holding portion 8 displaceable with each other telescopically in an axial direction. A cushion member 10 is provided in a clearance 9a between the engaging portion 7 and the tip tool holding portion 8, thereby transmitting an angular component of the percussion force while absorbing an axial component of the percussion force. An additional cushion member 13 may be interposed between the spindle 1 and the anvil.
摘要翻译：冲击锤工具包括绕其轴线旋转的主轴1。主轴1由马达M驱动。与主轴1可滑动地连接的锤3产生旋转并撞击砧座的冲击力。砧座被分成与锤子3接合的接合部分7和保持尖端工具16的尖端工具保持部分8.接合部分7和尖端工具保持部分8彼此锁定。扭矩传递机构11使得接合部7和末端工具保持部8能够沿轴向可伸缩地彼此位移。缓冲构件10设置在接合部分7和尖端工具保持部分8之间的间隙9a中，从而在吸收冲击力的轴向分量的同时传递冲击力的角分量。可以在主轴1和砧之间插入附加的缓冲构件13。

2. 发明授权

US06619410B2 Electric power tool 失效
公开(公告)号：US06619410B2
公开(公告)日：2003-09-16
申请号：US09921605
申请日：2001-08-06
申请人： Junichi Kamimura , Mitsuo Ogura , Mitsuyuki Ishikawa , Yoshimitsu Kawasaki , Juurou Kobayashi , Naoya Eto , Hiroto Inagawa , Takuhiro Murakami , Satsuo Sato , Yoshikazu Yokoyama
发明人： Junichi Kamimura , Mitsuo Ogura , Mitsuyuki Ishikawa , Yoshimitsu Kawasaki , Juurou Kobayashi , Naoya Eto , Hiroto Inagawa , Takuhiro Murakami , Satsuo Sato , Yoshikazu Yokoyama
IPC分类号： E21B404
CPC分类号： B25F5/006 , B24B23/02 , B24B41/04 , B25F5/001 , F16D1/0805 , Y10T74/19907
摘要： Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission key 7 composed of high-strength plastic is provided between an output shaft 3 and a gear 4, and a plane or a V-groove is formed on each of the output shaft 3 and the gear 4 contacting the power transmission key 7.

3. 发明授权

US06863135B2 Electric power tool 失效
标题翻译：电动工具
公开(公告)号：US06863135B2
公开(公告)日：2005-03-08
申请号：US10649648
申请日：2003-08-28
申请人： Junichi Kamimura , Mitsuo Ogura , Mitsuyuki Ishikawa , Yoshimitsu Kawasaki , Juurou Kobayashi , Naoya Eto , Hiroto Inagawa , Takuhiro Murakami , Satsuo Sato , Yoshikazu Yokoyama
发明人： Junichi Kamimura , Mitsuo Ogura , Mitsuyuki Ishikawa , Yoshimitsu Kawasaki , Juurou Kobayashi , Naoya Eto , Hiroto Inagawa , Takuhiro Murakami , Satsuo Sato , Yoshikazu Yokoyama
IPC分类号： B24B23/02 , B24B41/04 , B25F5/00 , F16D1/08 , E21B4/04
CPC分类号： B25F5/006 , B24B23/02 , B24B41/04 , B25F5/001 , F16D1/0805 , Y10T74/19907
摘要： Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission key 7 composed of high-strength plastic is provided between an output shaft 3 and a gear 4, and a plane or a V-groove is formed on each of the output shaft 3 and the gear 4 contacting the power transmission key 7.
摘要翻译：公开了一种具有齿轮机构的电动工具，其通过吸收齿轮的碰撞而降低噪音并且能够抵抗高扭矩。在输出轴3和齿轮4之间设置有由高强度塑料构成的动力传递键7，并且在输出轴3和与动力传递键7接触的齿轮4的每一个上形成有平面或V形槽。

4. 发明授权

US5090606A Combustion gas powered fastener driving tool 失效
标题翻译：燃气动力紧固件驱动工具
公开(公告)号：US5090606A
公开(公告)日：1992-02-25
申请号：US603659
申请日：1990-10-26
申请人： Takuji Torii , Hiromu Utsumi , Shinki Ohtsu , Yo Kawakami , Teruo Suzuki , Yoshimitsu Kawasaki , Toshifumi Kubota , Yoshinori Ishizawa , Tsunehisa Terayama
发明人： Takuji Torii , Hiromu Utsumi , Shinki Ohtsu , Yo Kawakami , Teruo Suzuki , Yoshimitsu Kawasaki , Toshifumi Kubota , Yoshinori Ishizawa , Tsunehisa Terayama
IPC分类号： B25C1/08
CPC分类号： B25C1/08
摘要： A combustion gas powered fastener driving tool includes inlet and outlet openings through which the combustion gases are discharged from a combustion chamber. These openings are located above the uppermost driving position (top dead center) of a slidable piston, so that an air and fuel mixture is fully trapped in the combustion chamber until after it is combusted. Since an outflow of the unburnt air and fuel mixture is completely prevented, the rate of fuel consumption of the fastener driving tool is high and there is no danger of accidental explosion of unburned fuel even when the fastener driving tool is used in a badly ventilated working place or site. An electric fan for forcing fresh air into the combustion chamber is disposed outside the cylinder and isolated from high temperatures. The fan is durable in structure and reliable in operation.

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