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US 8,739,587 B2Granted
Rekeyable lock assembly with blown cylinder protection
AssigneeKwikset Corporation
InventorHenry Chen
Life of this patent
Estimating the term…
Abstract
A rekeyable lock cylinder includes a plug body with a keyway opening along a longitudinal axis and a multiple of channels transverse to the axis. A locking bar generally parallel to the longitudinal axis, the locking bar having an extension. A slide movably mounted to an end section of the plug body, the slide having a slot which selectively permits passage of the extension during a rekeying procedure.
Claims12
A rekeyable lock cylinder comprising:
- a plug body with a keyway opening along a longitudinal axis and a multiple of channels transverse to said axis, said plug body having a first position in which said lock cylinder operates and a second position in which said lock cylinder is configured to be rekeyed by a new key insertable in said keyway;
- a locking bar generally parallel to said longitudinal axis;
- a multiple of racks slidably movable transverse to said longitudinal axis, wherein the locking bar is configured to engage the multiple of racks;
- a slide movably mounted to said plug body, said slide having a slot that allows passage of said locking bar if said new key is completely inserted in said keyway such that said plug body may be moved to said first position;
- wherein said slide includes a first leg and a second leg, wherein said first leg is not in contact with said second leg, the first and second legs connected by a transverse member;
- wherein said slide further comprises an arm extends in an opposite direction from said transverse member with respect to said first leg and said second leg;
- and
- a spring post that extends from said arm.
5 more elements
A rekeyable lock cylinder comprising:
- a cylinder body which defines a longitudinal axis;
- a plug body with a keyway opening along said longitudinal axis and a channel transverse to said longitudinal axis;
- a carrier disposed adjacent said plug body;
- a locking bar mounted at least partially within said carrier generally parallel to said longitudinal axis, said locking bar having an extension;
- a multiple of racks slidably movable transverse to said longitudinal axis, wherein the locking bar is configured to engage the multiple of racks;
- and
- a slide movably mounted to an end section of said plug body, said slide having a slot that selectively permits passage of said extension depending on whether a rekeying process is successful;
- wherein said slide includes a first leg and a second leg, wherein said first leg is not in contact with said second leg, the first and second legs connected by a transverse member, said longitudinal axis intersects said transverse member;
- an arm that extends in an opposite direction from said transverse member with respect to said first leg and said second leg;
- and
- a spring post which extends from said arm.
8 more elements
A rekeyable lock cylinder comprising:
- a cylinder which defines a longitudinal axis;
- a plug body rotatable within said cylinder;
- a multiple of pins movably mountable within said plug body transverse said longitudinal axis;
- a multiple of biasing members to bias said multiple of pins toward a keyway;
- a carrier mountable adjacent said plug body;
- a multiple of racks slidably movable transverse to said longitudinal axis, said multiple of racks engaged with said multiple of pins in response to said carrier being at a first predetermined position, said carrier axially displaceable along said longitudinal axis to selectively disengage said multiple of racks from said multiple of pins in response to said carrier being at a second predetermined position;
- and
- a locking bar mounted at least partially within said carrier generally parallel to said longitudinal axis, said locking bar having an extension;
- and
- a slide movably mounted to an end section of said plug body, said slide having a slot that selectively permits passage of said extension during a rekeying procedure.
7 more elements
Dependencies are inferred from the claim text.