| 摘要 |
Block lock for intruder alarm systems (EMA), in which the bolt is movable, by means of the vertical stroke of a toothed slide, via a toggle joint coupled to a toothed pinion and can be locked in the closed-off position by means of an electromagnetically controllable detent, and in which, in the closing position of the bolt and in the lower position of the slide, a switching contact is actuated by the latter and consequently the intruder alarm system (EMA) is primed, there being inserted in the circuit of the said switching contact two junction points in touch contact with the lock-case cover and at least two resistors connected easily releasably, in a freely accessible position, to solder support points.
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