发明名称 |
Apparatus for adjusting the rotational speed of a drive mechanism |
摘要 |
The invention concerns a device for adjusting the rotational speed of a drive mechanism preferably of the type used in a movie projector and provided with a drive motor having a stationary fixed stator, a rotor rotating in only one direction and connected to a friction wheel with at least one, preferably two, oppositely disposed friction discs fixed on a drive shaft for driving engagement with the friction wheel, the friction wheel being adjustable with respect to the friction discs in a radial direction to thereby adjust the rotational speed of the driving mechanism.
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申请公布号 |
US4047442(A) |
申请公布日期 |
1977.09.13 |
申请号 |
US19760699458 |
申请日期 |
1976.06.24 |
申请人 |
VOCKENHUBER, KARL |
发明人 |
PAMMER, GOTTFRIED;KVASNICKA, RUDOLF |
分类号 |
G03B21/43;F16H61/664;G01P3/44;G05D13/62;H02K7/10;H02K7/12;(IPC1-7):F16H15/08;F16H15/10;F16H15/12 |
主分类号 |
G03B21/43 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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