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1. 发明授权

US06441517B1 Drive mechanism for oscillating electric products of personal use, particularly dry shavers 有权
公开(公告)号：US06441517B1
公开(公告)日：2002-08-27
申请号：US09885993
申请日：2001-06-21
申请人： Thomas Brum , Alexander Klös , Holger Port , Werner Port , Uwe Schaaf
发明人： Thomas Brum , Alexander Klös , Holger Port , Werner Port , Uwe Schaaf
IPC分类号： H02K3302
CPC分类号： B26B19/282 , B26B19/28 , H02K33/16
摘要： The invention is directed to a drive mechanism for driving a working unit, movable in a rotary oscillating manner, of domestic appliances, particularly dry shavers. The drive mechanism of the invention includes a permanent magnet motor which has a stator with an exciter winding and a rotor with at least one permanent magnet positioned in the stator field and rotatably mounted on a shaft, a reset device for returning the rotor to a position of rest in such a way as to enable the rotor to oscillate about the position of rest, a coupling device for coupling the rotor to the working unit, wherein the coupling device is connected to the rotor in spaced relationship to the rotor shaft, a detecting device for detecting the oscillatory motion of the rotor, and an actuating unit for actuating the permanent magnet motor in response to the detected oscillatory motion, provision being made for frequency control elements for actuating the permanent magnet motor with a frequency corresponding approximately to the resonant frequency of the rotor.

2. 发明授权

US4019252A Electric shaver 失效
标题翻译：电动剃须刀
公开(公告)号：US4019252A
公开(公告)日：1977-04-26
申请号：US551843
申请日：1975-02-21
申请人： Werner Port , Christian Schmieder
发明人： Werner Port , Christian Schmieder
IPC分类号： B26B19/04 , B26B19/28 , F16C11/04 , F16D3/00
CPC分类号： F16C11/04 , B26B19/28 , Y10T403/32008 , Y10T403/32041 , Y10T403/32631
摘要： A shear head is mounted in a housing of the shaver and includes two cutters one of which is reciprocable relative to the other. An electric motor has a rotatable output shaft and motion-transmitting linkage connects the output shaft with the reciprocable cutter. The linkage includes a crank which is movable by the output shaft and a swing arm which is connected with the reciprocable cutter, and a joint which connects the crank and the swing arm with one another. The joint includes a spherical surface provided on the crank or the swing arm, and a pair of socket members provided on the swing arm or crank and contacting portions of the spherical surface along annular lines, there being sufficient play in the joint to permit relative tumbling movements of the element thereof about the center of the spherical surface.
摘要翻译：剪切头安装在剃须刀的壳体中，并且包括两个切割器，其中一个可相对于另一个往复运动。电动机具有可旋转的输出轴，运动传动联动装置将输出轴与往复式切割器连接。联动装置包括可由输出轴移动的曲柄和与往复运动切割器连接的摆臂以及将曲柄与摇臂彼此连接的接头。接头包括设置在曲柄或摆臂上的球形表面，以及设置在摆臂或曲柄上的一对插座构件，并且沿着环形线接触球形表面的一部分，在接头处有足够的间隙以允许相对翻滚其元件围绕球面的中心运动。

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