发明名称 |
Gesicherte Abschliessvorrichtung. |
摘要 |
A device for closing a passageway, which device comprises a closing body that can be moved by means of a motor along a guiding from a closed position to an open position and vice versa, wherein the body is provided with a safety sensor interrupting the motor feed, is incorporated in a circuit with separate feed connected fixedly to the movable body and the circuit is provided with a conductor which extends in the direction of movement and which is guided slidably along at least one fixed coil disposed close to the guiding, which coil is a part of the control circuit for the motor, wherein the safety sensor comprises one or more break contacts connected in series, and further connected in series with a capacitor in the circuit so being able to measure the frequency change in the circuit, instead of operating on the usual measuring of a resistance or power change when the sensor is activated. <IMAGE> |
申请公布号 |
DE69014838(D1) |
申请公布日期 |
1995.01.19 |
申请号 |
DE1990614838 |
申请日期 |
1990.12.03 |
申请人 |
HERAS HOLDING COMPANY B.V., OIRSCHOT, NL |
发明人 |
BOUWMANS, HENDRICUS, HUBERTUS, ANTONIUS, 5688 BB OIRSCHOT, NL |
分类号 |
E05F15/00;(IPC1-7):E05F15/00 |
主分类号 |
E05F15/00 |
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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