Clamping-in protection device

申请公布号：DE3838449(A1)

申请号：DE19883838449

申请日期：1988.11.12

申请公布日期：1989.04.13

申请人：

ZIMMERMANN, UWE, 6950 MOSBACH, DE

发明人：ZIMMERMANN, UWE, 6950 MOSBACH, DE

分类号：E05F15/00;F16P3/12;H01H3/14;H01H47/00

主分类号：E05F15/00

摘要：A clamping-in protection device has a transmitting part (11) with two transmitters (11.1, 11.2) which emit two different test signals. A receiving part (12) is furthermore provided, which receives the emitted signals after they have passed via test leads (14.1, 14.2) of a contact rubber strip (13). A comparator (18) investigates whether the received signals have precisely the same differences as the two transmitted signals. If this is not the case, then a warning alarm is emitted. Using a clamping-in protection device which is constructed in such a manner, all conceivable defects can be detected, that is to say, for example, incorrect connection of the contact rubber strip, at least one test lead torn off in the contact rubber strip, or a short circuit in the strip caused by said strip being crushed. <IMAGE>

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