Braking device for man conveyor |
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| 申请号 | JP27793087 | 申请日 | 1987-11-02 | 公开(公告)号 | JPH01122893A | 公开(公告)日 | 1989-05-16 |
| 申请人 | Hitachi Ltd; | 发明人 | NAKAZAWA SATOSHI; | ||||
| 摘要 | PURPOSE: To positively brake a driving shaft in the event of chain cutting or abnormality by pivotally supporting a second link releasably supported to a solenoid support part, to one end of a first link pivotally supported to a guide shoe, and supporting a third link interlocked with a brake, to the other end. CONSTITUTION: A first link 110 is pivotally supported to a guide shoe 9 detecting cutting or looseness of a driving chain 4, and a second link 120 rotatable around a horizontally movable pin 140 by a solenoid 130 is supported to one end of the first link 110. The second link 120 is releasable by the horizontal movement of the pin 140 by solenoid excitation. A third link 150 engaged with a brake 13 is pivotally supported to the other end of the first link 110. The guide shoe 9 is fitted to a lever 8. When the chain is cut, the shoe 9 is lowered, and the brake 13 is rotated to stop the rotation of a sprocket 3. At the abnormal time, the solenoid 130 is excited to release the second link 120, and the first link 150 is rotated to rotate the brake 13, thus stopping the sprocket 3. COPYRIGHT: (C)1989,JPO |
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| 说明书全文 | |||||||
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