Safety lock
AssigneeZeiss Ikon AG
InventorsJuergen Kruehn, Kurt Prunbauer
Life of this patent
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Abstract
An improvement for a safety lock is provided which is especially useful in a double cylinder lock having a longitudinally split lock web ring, wherein the ring has a releasable interlocking connection in the form of a hinge at one side and a pair of radially extending pegs on an opposite side which can be clamped together by a retainer in the form of a washer or a clamp to secure the two halves together. If a washer is used, the pegs may have to be swedged over, but if a clamp is used in the form of a resilient member surrounding a portion of the lock ring, no swedging is required.
Claims18
In a lock cylinder, an improved lock web ring and retaining means comprising:
- a lock web ring divided in a longitudinal direction forming two adjoining halves with a hinge connection between said two halves in the region of a lock web and having a radially projecting peg on each half at a region opposite said lock web;
- and
- a retaining means having a central opening selectively placeable over said pegs to hold said two pegs together in a clamped manner.
In a lock cylinder, an improved lock web ring and retaining means comprising:
- a lock web ring divided in a longitudinal direction forming two adjoining halves with a releasable interlocking connection formed between said two halves at a first region of said ring and having a radially projecting protrusion on each half at a region radially opposite said first region;
- and
- a retaining means having a central opening selectively placeable over said protrusions to hold said two protrusions together in a clamped manner.
Dependencies are inferred from the claim text.