发明名称 |
Switch machine with ratchet mechanism on hand throw mechanism |
摘要 |
There is provided an improved hand throw device of an electric motor driven switch machine having a ratchet mechanism that permits torque to be applied to the hand throw device in either a clockwise or counter-clockwise direction as desired by an operator. The ratchet mechanism is a self contained module that can be easily installed to either side of the switch machine. The ratchet mechanism also permits the operator to assume a favorable position for application of force to the hand throw device with minimum stress and strain to his or her body. In addition, the ratchet mechanism has a gear system that provides a 2 to 1 mechanical advantage so that less torque is required for movement of the hand throw device.
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申请公布号 |
US5582370(A) |
申请公布日期 |
1996.12.10 |
申请号 |
US19940293125 |
申请日期 |
1994.08.19 |
申请人 |
GENERAL RAILWAY SIGNAL CORPORATION |
发明人 |
MYERS, STEVEN W.;VAN ALSTINE, DANIEL W. |
分类号 |
B61L5/02;B61L5/06;(IPC1-7):B61L5/02 |
主分类号 |
B61L5/02 |
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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