Lock mechanism for current limiting contactor |
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| 申请号 | JP29949089 | 申请日 | 1989-11-17 | 公开(公告)号 | JPH02192626A | 公开(公告)日 | 1990-07-30 |
| 申请人 | Telemecanique; | 发明人 | ANDORE FUAFUAARU; | ||||
| 摘要 | PURPOSE: To allow high speed opening for current limiting function by providing a means for displacement from an automatic operation position to a pull-off position with an elastic means. CONSTITUTION: At least one lever 4 operated on at least one thrusting block 2 to operate a switch and mounted on a fixed shaft 8 is provided. A bearing plane is provided on the lever 4, which is formed with a roller 6 or others put in contact with the outer periphery of a rotationally moved cam 7 by an elastic means 11. A means is also provided to displace the cam 7 from an automatic operation position, locked, where the lever 4 is held apart from the thrusting block 2 to close a switch with electromagnets A, B, to a pull-off position, where the lever 4 is operated on the thrusting block 2 to keep the switch in an open state. In this way, a mechanism which is highly reliable, operable at a high speed and relatively inexpensive is obtained. COPYRIGHT: (C)1990,JPO |
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| 说明书全文 | |||||||
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