Drive-rod type drive mechanism

Details Drive-rod type drive mechanism Drive-rod type drive mechanism

1996-08-12

1998-05-19

Lindsey, Rodney M.

Closure fasteners

Bolts

Multiple

292140, 292143, E05C 910

Patent

active

057527270

ABSTRACT:
A drive type operating mechanism for locking gates, windows, double-wing doors and the like includes push rods which are movable longitudinally in opposite directions to effect locking of the upper and lower ends of the door with the surrounding framework. The mechanism is connected for actuation by a lever handle through an arrangement of follower elements that are slidable supported in a lock case. A nut sleeve follower which is rotatable by the lever handle has one claw which cooperates with a groove in one longitudinally movable follower, and a second claw which cooperates with a transversely slidable intermediate follower which in turn cooperates with a groove in the second longitudinal follower, this arrangement ensuring that upon rotation of the handle the followers (and hence the locking bolts) move in opposite directions. A lock mechanism ensures that the longitudinally movable followers are not inadvertently moved from their end limiting positions.

REFERENCES:
patent: 266799 (1882-10-01), Felsburg
patent: 699334 (1902-05-01), Lyon
patent: 1670277 (1928-05-01), Albach
patent: 4790583 (1988-12-01), Tonsmann et al.
patent: 5197771 (1993-03-01), Kaup et al.
patent: 5318333 (1994-06-01), Dreifert
patent: 5524942 (1996-06-01), Fleming

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