Title:
EXIT DOOR LATCH ASSEMBLY
Document Type and Number:
WIPO Patent Application WO2001025574
Kind Code:
A3
Abstract:
A latch assembly (10) comprising a latch frame (24) mounted to a door (12). A latch bolt (40) is mounted to the latch frame (24) for pivotal movement between a biased position extended position and a retracted position. The latch bolt (40) includes a tip portion (48) with opposing planar locking (50) and shaped engagement (50) surfaces. A link is pivotally mounted to the frame (24) for movement between a biased blocking position and a release position. In the blocking position the link prevents movement of the latch bolt (40) from the extended position. A push bar (102) pivots the link to the release position in response to an applied force. A frame bolt (82) is mounted to a door frame (14) for linear displacement between a position projecting from the door frame (14) and a position displaced toward the door frame (14). The frame bolt (82) includes opposing engagement (86) and planar locking (84) surfaces. When the door is closed the planar locking surfaces (50, 84) are in opposing surface-to-surface contact securing the door (12) to the frame (14).
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Inventors:
FROLOV GEORGE
Application Number:
PCT/US2000/027297
Publication Date:
January 10, 2002
Filing Date:
October 04, 2000
Export Citation:
Assignee:
HARROW PRODUCTS INC (US)
International Classes:
E05B63/24; E05B65/10; (IPC1-7): E05B65/10
Foreign References:
| US4709950A | 1987-12-01 | |||
| AU600834B2 | 1990-08-23 | |||
| US5219385A | 1993-06-15 |
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