| 摘要 |
It is fitted in the inner escutcheon and is able to be adapted to any lock and in left- and right-handed doors. Once the lock has been opened, after a certain length of time it becomes locked again even though the handle has not been turned. It includes two inner (12) and outer (11) square bars in prolongation, connected to individual tumblers (21, 22) and bearing the operating handles. Both tumblers (21, 22) have a relative angular displacement, turning simultaneously, after the release of a displaceable piece (23) or latch, introduced into a groove (214) of the outer tumbler (21), the latch (23) being assisted by a spring (30). The latch (23) is displaceable from the inside by means of rocker arms (24, 25) operated by lugs (224, 225) of the inner tumbler (22), projecting from the groove (214). From the outside, a reducer motor (40) acts on an endless screw (401), which displaces the spring (30) connected to the latch (23) through a certain angle in order to release it.
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