Combination lock
AssigneeC.G.V. S.a.S. di Claudio Castiglioni & C.
InventorsClaudio Castiglioni, Italo Azzalin
Life of this patent
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Abstract
The combination can be set by discs which are toothed on one of their faces. This toothing causes movement of internal bushes or rings which are at least partly contained in seats in a manually controllable slider, which can be moved against a spring when, having set the exact combination, a radial passage in said bushes or rings becomes disposed in a position such as to allow radial movement of the bushes and thus movement of the slider and opening of the lock. The combination can be changed by setting the existing combination and moving the slider and thus the rings, so that these latter disengage from the toothed discs which can thus be rotated into another position without dragging the bushes with them.
Claims6
An improved combination lock, comprising an engagement member
- intended for fixing to one of the parts of an article, and a combination mechanism fixed to the other part of the article and provided with a pawl arranged to cooperate with said engagement member, said mechanism comprising a series of rotatable discs
- for setting the combination, an equal series of stop bodies removably engaged with said discs so as to be able to be rotated together therewith, and an element associated with said bodies
- and slidable against a spring when said bodies assume a predetermined position corresponding to the required combination, characterised in that:
- (a) the combination-setting discs comprise circular toothing on one of their flat faces;
- (b) the stop bodies
- are of ring shape and contain toothed formations arranged to engage the toothing of the cooperating combination-setting disc in such a manner as to move angularly with this latter, but allowing a radial movement of said bodies with respect to said discs producing disengagement between the toothed formations and toothing when a radial path present in said ring faces, when in a predetermined position, a stationary profiled means;
- and (c) said stop bodies are housed in seats
- in the slidable element in such a manner as to govern its possibility of movement.
Dependencies are inferred from the claim text.