Title:
IMPROVED DOOR LATCH ASSEMBLY WITH ACCELERATED BOLT MOTION, DEADBOLT AND REPLACEMENT FACE PLATES
Document Type and Number:
WIPO Patent Application WO2001059241
Kind Code:
A3
Abstract:
A door latch has an adjustable cam (25) to accommodate two backsets of the bore (24) through a door. The cam (25) is operably attached to a handle (14). Rotation of the handle (24) approximately 45 DEG fully retracts latch bolt (54) and deadbolt (56) through a slide actuator (100) that pulls a link (112) which pivots a cam lever (104) that retracts the bolt (54). The bolt (54) retracting motion is magnified with respect to the motion of actuator (100) via the link (112) and cam lever (104). The link (112) and cam lever (104) are mounted within cylinder section half (52) of housing (28) so as not to interfere with the deadbolt (56) and its slide (150) and deadbolt locking plate (170) that are mounted in a complementary cylinder half (51).
Inventors:
WHEATLAND GRAHAM JOHN
Application Number:
PCT/US2001/004392
Publication Date:
July 18, 2002
Filing Date:
February 08, 2001
Export Citation:
Assignee:
WEISER LOCK CORP (US)
International Classes:
E05B9/00; E05B63/00; E05B63/06; E05C1/16; E05B55/00; (IPC1-7): E05C1/00
Foreign References:
| US4974884A | 1990-12-04 | |||
| US4957315A | 1990-09-18 | |||
| US5501492A | 1996-03-26 | |||
| US4871202A | 1989-10-03 |
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