Locking mechanism
AssigneeHenry Squire & Sons Holdings Ltd
InventorGlyn Green
Life of this patent
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Abstract
A lock mechanism is disclosed. The lock mechanism includes a body and a clasp with a hole in. The clasp engages and locks with the body. There is also a key receiver with a keyway and a latch biased in a first direction by a spring. The latch has a protrusion for engaging the aperture to lock the clasp to the body. There are split pins which straddle a shear line between the latch and key receiver when in a locked condition and that do not straddle the shear line when the correct key is in the keyway. The split pins are biased by springs in a second direction, transverse to said first direction. The lock mechanism also has a retainer for maintaining the engagement of the latch and the key receiver.
Claims13
A lock mechanism comprising:
- a body and a clasp having an aperture therein, the clasp engaging and locking with said body, the body comprising:
- a key receiver having a keyway formed therein;
- a latch biased by a first biasing member, said first biasing member acting in a first direction, wherein a shared boundary between said latch and said key receiver defines a shear line and said latch has at least one protrusion for selectively engaging said aperture to maintain said clasp in locking engagement with said body;
- at least one pin for movement between a locked condition, wherein said pin straddles said shear line and enters said keyway and an unlocked condition wherein said pin does not straddle said shear line wherein said pin is biased in a second direction, transverse to said first direction, by a second biasing member;
- and
- a retainer for maintaining the engagement of the latch and the key receiver;
- wherein the keyway receives the key in a third direction which is transverse to said second direction and said first direction;
- and
- wherein movement of the latch between the locked and unlocked condition is translational without rotation about a pivot.
A lock mechanism comprising:
- a body and a clasp having an aperture therein, the clasp engaging and locking with said body, the body comprising:
- a key receiver having a keyway formed therein;
- a latch biased in a first direction by a first biasing member, wherein a shared boundary between said latch and said key receiver defines a shear line and said latch has at least one protrusion for selectively engaging said aperture to maintain said clasp in locking engagement with said body;
- at least one pin for movement between a locked condition, wherein said pin straddles said shear line and enters said keyway and an unlocked condition wherein said pin does not straddle said shear line wherein said pin is biased in a second direction, transverse to said first direction, by a second biasing member;
- and
- a retainer for maintaining the engagement of the latch and the key receiver;
- wherein said pin is a split pin;
- wherein the keyway is configured to receive the key in a third linear direction that is substantially orthogonal to both said first linear direction and said second linear direction;
- and
- wherein movement of the latch between the locked and unlocked condition is translational without rotation about a pivot.
Dependencies are inferred from the claim text.