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US 9,359,791 B2Granted
Rekeyable lock assembly with blown cylinder protection
AssigneeKwikset Corporation
InventorJack Zhang
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 rekeying feature located adjacent to the keyway opening.
Claims17
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;
- a rekeying feature adjacent to said keyway opening wherein said rekeying feature includes a first wall and a second wall in a perpendicular arrangement, said first wall parallel to said keyway opening;
- and,
- a first support and a second support, said first support forward of said second support relative to a plug face of said plug body and wherein said first support defines a first recess generally along said first wall and a second recess is generally along said second wall, said first recess at least partially intersects with said second recess.
1 more element
A rekeyable lock cylinder comprising:
- a cylinder body which defines a longitudinal axis;
- a plug body positionable within said cylinder body, said plug body includes a keyway opening along said longitudinal axis;
- a carrier disposed adjacent said plug body;
- a plurality of pins disposed in said plug body;
- and
- a rekeying feature adjacent to said keyway opening wherein said rekeying feature receives a lock assembly movable with respect to insertion of a key, wherein said lock assembly includes a holding bar with a key engagement member movable with respect to insertion of said key wherein said key engagement member includes a relatively flat section which faces said keyway opening and a raised section opposite thereto, and wherein said raised section is engageable with a detent recess located within an interior surface of a cylinder wall of said lock cylinder body when said key is not fully inserted into said keyway opening.
3 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 respective multiple of pins toward a keyway opening;
- 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 rekeying feature adjacent to the keyway opening wherein said rekeying feature includes a first wall and a second wall in a perpendicular arrangement, said first wall parallel to said keyway opening, a first support defines a first recess generally along said first wall and a second recess is generally along said second wall, said first recess at least partially intersects with said second recess.
5 more elements
A rekeyable lock cylinder comprising:
- a plug body with a keyway opening extending along a longitudinal axis within said plug body and a channel transverse to said axis;
- a rekeying feature adjacent to and extending into said keyway opening wherein said rekeying feature includes a portion that moves radially inwardly and outwardly relative to said longitudinal axis in response to insertion of a key, said portion not interfering with locking or unlocking operations of said lock cylinder if a key is not fully inserted if said plug body is in a first position and said portion interfering with rekeying of said lock cylinder by extending outside of said plug body if a new key is not fully inserted in said keyway opening if said plug body is in a second position;
- and
- wherein said rekeying feature includes a first wall and a second wall in a perpendicular arrangement, said first wall parallel to said keyway opening, a first support defines a first recess generally along said first wall and a second recess is generally along said second wall, said first recess at least partially intersects with said second recess.
1 more element
Dependencies are inferred from the claim text.