Lock, in particular mortise lock for an exterior door
AssigneeGretsch-Unitas GmbH
InventorsJulius von Resch, Walter Renz, Daniel Gründler, Udo Dieners
Life of this patent
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Abstract
A lock for a door including a latch bolt and a further bolt mounted in a housing for parallel displacement relative to the housing. A bearing is fixed in place in the housing and along with a turning element and a two-armed hinged lever, also mounted to the housing operate on the latch bolt and the further bolt. The two arms of the two-armed hinged lever are pivotably connected with each other at their free ends with one of the arms receiving the fixed bearing between its ends, and with one of the arms being connected to the turning element and the other of its arms being connected to the further bolt.
Claims21
A lock for a door, comprising:
- a housing including an opening;
- a latch bolt and a further bolt both mounted to said housing for parallel displacement relative to said housing, said further bolt being operated for said parallel displacement by one of a key, a turning knob, and a key and turning knob, and said latch bolt being selectively operated by one of a latch with a follower, a key, and the turning knob;
- a turning element mounted to said housing, said turning element being actuated by a key or a turning knob;
- a two-armed hinged lever pivotably connected to said turning element with one arm of said two-armed hinged lever and pivotably coupled to said further bolt with the other arm of said two-armed hinged lever;
- and
- a bearing fixed in place in said housing;
- wherein the two arms of said two-armed hinged lever each have a free end and are pivotably connected with each other at their free ends, with one arm of said two-armed hinged lever receiving said bearing between the ends thereof.
Dependencies are inferred from the claim text.