公开(公告)号：US3673830A

公开(公告)日：1972-07-04

申请号：US3673830D

申请日：1970-08-26

申请人： RENE ALFREDO BILLINO

发明人： BILLINO RENE ALFREDO

IPC分类号： E05B15/10 ,  E05B59/00 ,  E05B25/08

CPC分类号： E05B59/00 ,  E05B15/108 ,  Y10T70/7531 ,  Y10T70/7836 ,  Y10T70/7921

摘要： A safety lock having a latch bolt and at least one key-operated bolt both movable to an unlocking position by turning of a single key. Combination tumbler plates are located on opposite sides of an operating plate connected to the key-operated bolt. The tumbler plates are constructed to be moved to a releasing position, permitting movement of the operating plate, regardless whether the key is inserted from one or the other side of a box in which the elements of the lock are mounted. The key-operated bolt is moved to the unlocking position during turning of the key in one direction and means are provided to move the latch bolt to its unlocking position during further turning of the key in the one direction without further withdrawing the key-operated bolt.