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1. 发明授权

US5361853A Power tool 失效
标题翻译：电动工具
公开(公告)号：US5361853A
公开(公告)日：1994-11-08
申请号：US981600
申请日：1992-11-25
申请人： Akio Takamura , Hideto Yagi , Takao Yokota
发明人： Akio Takamura , Hideto Yagi , Takao Yokota
IPC分类号： B25B21/00 , B25B21/02 , B25F5/00 , B25F5/02 , B25D11/04 , H02K9/22
CPC分类号： B25B21/02 , B25B21/00 , B25F5/001 , B25F5/02
摘要： A power tool comprises an outer casing, a drive motor disposed in the casing for driving a tool member, a drive shaft extending from the drive motor, an electric element of operating the drive motor, a heat radiating block secured to the drive motor, a power control element secured to the heat radiating block for controlling a rotation number of the drive motor, and a mechanism for preventing a rotation of the drive motor in engagement of the heat radiating block with the outer casing. The rotation preventing mechanism comprises an engaging member integrally formed to the heat radiating block and a member formed to the casing to be engageable with the engaging member. The power tool further comprises a speed reduction mechanism connected to the drive motor for reducing the driving speed of the drive motor and a rotation transmitting mechanism operatively connected to the speed reduction mechanism for transmitting the rotation of the drive motor to the tool member. The speed reduction mechanism includes a rotating portion having a pinion and the rotation transmitting mechanism includes a shaft having one end connected to the rotating portion of the speed reduction mechanism and another end connected to the tool member, the one end of the shaft being provided with a hole into which said rotating portion is rotatably inserted.
摘要翻译：电动工具包括外壳，设置在壳体中用于驱动工具构件的驱动马达，从驱动马达延伸的驱动轴，操作驱动马达的电气元件，固定到驱动马达的散热块，固定到散热块的功率控制元件，用于控制驱动电动机的转数;以及用于防止驱动电动机与散热块与外壳接合的旋转的机构。旋转防止机构包括与散热块一体形成的接合构件和形成在壳体上以与接合构件接合的构件。电动工具还包括连接到驱动电动机的减速机构，用于降低驱动电动机的驱动速度;以及旋转传递机构，其可操作地连接到减速机构，用于将驱动电动机的旋转传递到工具构件。所述减速机构包括具有小齿轮的旋转部，所述旋转传递机构包括：一端与所述减速机构的旋转部连接的另一端和与所述工具部件连接的另一端，所述轴的一端设置有：所述旋转部可旋转地插入其中的孔。

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