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专利名称：Device for locking and unlocking doors发明人：STIER, BERNHARD,RATHMANN, KLAUS申请号：EP82101771.2申请日：19820306公开号：EP0066044B1公开日：19841121
摘要：the device has a pneumatic sperreinrichtung (41).by a third schaltstellung ahauptschlosses (1) in addition to the hauptt\ürschlo\ß (1) all
nebent\ürschl\össer (3) that are closedthat they either from within or fromoutside, and only a skeleton key (8) of hauptschlo\ß (1) can be opened.a 3 \\/ 2 -wegeventil (30) for controlling the stellglieds (35) of the nebent\ürschlosses (3) andthe sperreinrichtung (41) is designedthat it is in a position by an electric stelleinrichtung(29), in the other, however, by a pneumatic stelleinrichtung (37) movements.the
pneumatic stelleinrichtung (37) is controlled by changing pressure, which the pump (21) isproduced which is switched and controlled.that they necessarily alternately with eachattempt, negative pressure or overpressure provides.
申请人：VDO ADOLF SCHINDLING AG
地址：Gräfstrasse 103 D-60487 Frankfurt DE
国籍：DE
代理机构：Könekamp, Herbert, Dipl.-Ing.
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