Bolt restraint
AssigneeSurelock McGill Limited
InventorsStuart Parker, Glen Davies
Life of this patent
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Abstract
A bolt restraint mechanism for restraining a bolt of a bolting mechanism. The bolt restraint mechanism includes a bolt moveable between thrown and retracted positions and a catch plate having an aperture through which the bolt extends. The catch plate is biased to pivot such that a restraint surface of the aperture pushes against the bolt to restrain movement of the bolt. A release trigger is arranged such that when depressed the release trigger pushes against the catch plate to pivot thereby releasing the restraint surface from pushing against the bolt to release the bolt. The catch plate may be biased such that when the restraint surface pushes against the bolt to restrain movement of the bolt, the catch plate is non-orthogonal to the bolt.
Claims22
A bolt restraint mechanism for restraining a bolt of a bolting mechanism, the bolt restraint mechanism comprising:
- a bolt moveable between thrown and retracted positions;
- a catch plate having (a) edges outlining an aperture through which the bolt extends and (b) acting as a restraint surface, the catch plate biased to pivot such that the restraint surface pushes against the bolt to restrain movement of the bolt;
- and
- a release trigger arranged such that when depressed the release trigger pushes against the catch plate to pivot releasing the restraint surface from pushing against the bolt to release the bolt wherein the release trigger comprises a first end extending from a housing of the bolt restraint mechanism to be depressed and a second end arranged to push against the catch plate, wherein the release trigger is arranged for compression between the first end and the second end and biased against compression.
A bolt restraint mechanism for restraining a bolt of a bolting mechanism, the bolt restraint mechanism comprising:
- a bolt moveable between thrown and retracted positions;
- a catch plate having edges (a) outlining an aperture through which the bolt extends, and (b) acting as a restraint surface, the catch plate biased to pivot such that the restraint surface pushes against the bolt to restrain movement of the bolt;
- and
- a release trigger arranged such that when depressed the release trigger pushes against the catch plate to pivot releasing the restraint surface from pushing against the bolt to release the bolt wherein the release trigger comprises (i) an adjustment screw or adjustment bolt and (ii) an adjustment rod into which the adjustment screw or bolt couples, wherein one of the adjustment screw, the adjustment bolt or the adjustment rod comprises a head with chamfered surfaces, the head received in a hole with a plurality of chamfered countersink surfaces such that the adjustment screw, the adjustment bolt or the adjustment rod is keyed.
Dependencies are inferred from the claim text.