Locking device
AssigneeGretsch-Unitas GmbH Baubeschlage
InventorsDaniel Gründler, Udo Dieners
Life of this patent
Estimating the term…
Abstract
A locking device for a door, window, or the like, has a main lock casing, at least one additional lock casing and at least one pushrod connecting the additional lock casing with the main lock casing. The additional lock casing has a retractable latch bolt, which can be freely pushed out of the latch position into the additional lock casing, which can be pushed into its locking position by means of a spring and/or a gear. The latch bolt on its side located opposite a leading incline and in the area of the latch end has a protrusion, on which a latch restoring lever acts, and the latch restoring lever has a first catch, by means of which a pushrod is taken along in the, and; one direction, a second catch, by means of which it is taken along by the pushrod in the other.
Claims6
A locking device for a door, window, or the like, comprising:
- a main lock casing;
- at least one additional lock casing;
- and
- at least one pushrod connecting each additional lock casing with said main lock casing, wherein:
- each additional lock casing has a retractable latch bolt which defines a latch position and a locking position, biasing means for biasing said retractable latch bolt between its latch position to its locking position, a latch restoring lever and a latch blocking lever,
- said retractable latch bolt including an inclined leading edge, a protrusion at a latch end located opposite to said leading edge,
- said latch blocking lever serving to block said retractable latch bolt in its locking position;
- and
- said latch restoring lever acted upon by said protrusion, and having a first catch by means of which said pushrod is moved in one direction, and a second catch by means of which said latch restoring lever is moved by said pushrod in a direction opposite to said one direction said latch restoring lever serving to engage said latch blocking lever to unblock said retractable latch bolt in its locking position.
Dependencies are inferred from the claim text.