Closure fasteners – Bolts – Sliding
Patent
1980-05-05
1982-03-09
Moore, Richard E.
Closure fasteners
Bolts
Sliding
29216913, E05C 116
Patent
active
043185584
ABSTRACT:
A deadlocking latch bolt in a tubular housing is connected to a tailpiece front cross head having a retainer arm in a radial window in the bolt and a blocker arm abutting the opposite housing side to maintain the connection. A deadlocking tumbler is biased to bolt deadlocking position. An auxiliary bolt, when projected, holds the tumbler in release position, and when retracted relative to the bolt, allows the tumbler to take deadlocking position. A channel-shaped tailpiece cam member engaged for linear movement with the cross head has a cam face presented to move the tumbler to release position when the deadlocked bolt is drawn rearward by the tailpiece. The bolt is movable relative to the tailpiece when thrust rearward so as to be deadlocked against the tumbler before actuating the tailpiece and its cam member, but has no lost motion when pulled rearward by the tailpiece. A rear guide block in the housing forms a guideway with a side entrance for admitting a narrow tailpiece portion thereto, and is self-sustained on the tailpiece when moved rearward against a tailpiece stop. Bolt springs and the tumbler are assembled between the guide block and the bolts on the tailpiece to form a self-sustained subassembly slidably insertable in the housing.
REFERENCES:
patent: 1876081 (1932-09-01), Schlage
patent: 2930646 (1960-03-01), Ahlquist et al.
patent: 2958553 (1960-11-01), Phillips
patent: 3112944 (1963-12-01), Adler
patent: 3353858 (1967-11-01), Neary et al.
patent: 3876236 (1975-04-01), Best et al.
Best Walter E.
Foshee William R.
Best Lock Corporation
Moore Richard E.
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