Combination locks
AssigneeKidde, Inc. (Presto Lock Company Division)
InventorLazlo Bako
Life of this patent
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Abstract
A dial and sleeve type combination lock is provided with a shift mechanism for moving the sleeves out of coupling engagement with the dials for changing the combination of the lock. The shift mechanism includes a rotary actuator mounted coaxially with the sleeves and having a portion of its periphery extending through an opening in the face plate of the lock. When the lock is on combination, the actuator can be rotated to move the sleeves out of coupling engagement with the respective dials by a camming action.
Claims11
A combination lock including a plurality of combination elements disposed on a common axis in a casing for axial movement in unison out of coupling engagement with cooperating combination components in order to change the combination of the lock, a shift mechanism for moving said elements axially, said shift mechanism including an actuator mounted for rotation about said axis, means providing a camming action between said actuator and said elements for causing said shift mechanism to move said elements axially responsive to rotary motion of said actuator in one direction, and means for restricting the rotary motion of the actuator to forward and reverse motion between opposed extreme positions, the combination elements in one extreme position of the actuator being in coupling engagement with the cooperating components and in the other extreme position of the actuator being out of coupling engagement with the cooperating components.
Dependencies are inferred from the claim text.