Lock
First Claim
1. A lock which includes a bolt (14), a catch (12) and a handle (16) for manually moving the catch from an operative position to an inoperative position, first link means (42), electrically actuable means (24, 26, 28) for causing movement of the first link means between first and second positions, the first link means, at the first position, translating movement of the handle (16) in a first direction into movement of the bolt (14) from a locked position to an unlocked position and, at the second position, allowing handle movement in the first direction without corresponding movement of the bolt and energy storage means (74) which is operable to release energy which at least assists in moving the bolt from the unlocked position to the locked position, and which is characterized in that the lock includes a catch mechanism (58) for retaining the bolt in the unlocked position and wherein the electrically actuable means is operable to release the catch mechanism to allow the bolt to be moved from the unlocked position to the locked position under the action of the energy storage means.
1 Assignment
0 Petitions
Accused Products
Abstract
A lock which includes a bolt, a catch, a handle for manually moving the catch from an operative position to an inoperative position, first link means, and electrically actuable means for causing movement of the first link means between first and second positions, the first link means, at the said first position, translating movement of the handle in a first direction into movement of the bolt from a locked position to an unlocked position and, at the said second position, allowing handle movement in the said first direction without corresponding movement of the bolt.
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Citations
11 Claims
- 1. A lock which includes a bolt (14), a catch (12) and a handle (16) for manually moving the catch from an operative position to an inoperative position, first link means (42), electrically actuable means (24, 26, 28) for causing movement of the first link means between first and second positions, the first link means, at the first position, translating movement of the handle (16) in a first direction into movement of the bolt (14) from a locked position to an unlocked position and, at the second position, allowing handle movement in the first direction without corresponding movement of the bolt and energy storage means (74) which is operable to release energy which at least assists in moving the bolt from the unlocked position to the locked position, and which is characterized in that the lock includes a catch mechanism (58) for retaining the bolt in the unlocked position and wherein the electrically actuable means is operable to release the catch mechanism to allow the bolt to be moved from the unlocked position to the locked position under the action of the energy storage means.
Specification