US 12,264,513 B2
Integrated primary lock and isolation lock emergency release mechanism
Daniel Filion, Mirabel (CA)
Assigned to Westinghouse Air Brake Technologies Corporation, Pittsburgh, PA (US)
Filed by Westinghouse Air Brake Technologies Corporation, Pittsburgh, PA (US)
Filed on Oct. 21, 2021, as Appl. No. 17/506,937.
Claims priority of provisional application 63/110,614, filed on Nov. 6, 2020.
Prior Publication US 2022/0145676 A1, May 12, 2022
Int. Cl. E05B 81/90 (2014.01); B61D 19/02 (2006.01); E05B 77/02 (2014.01); E05B 79/20 (2014.01); E05B 83/36 (2014.01)
CPC E05B 81/90 (2013.01) [B61D 19/02 (2013.01); E05B 77/02 (2013.01); E05B 79/20 (2013.01); E05B 83/363 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A lock mechanism comprising:
an isolation lock comprising a lever arm body and one or more tenons interconnected with the lever arm body, the one or more tenons configured to pivot into and out of one or more mortises of one or more door panel suspensions to engage and disengage the isolation lock to control isolation locking of a door, the isolation lock further comprising a lock shaft configured to rotate in a first rotational direction to engage the isolation lock, the lock shaft configured to rotate in a second rotational direction to disengage the isolation lock;
a slide plate interconnected with the lock shaft and configured to move in opposite linear directions as driven by the lock shaft motion in the first and second rotational directions; and
a release cam interconnected with the lever arm body of the isolation lock and with the slide plate, the release cam configured to be rotated around a spindle axis of a spindle to sequentially pivot the lever arm body to pivot the one or more tenons out of the one or more mortises, and at least partially synchronously move the slide plate to rotate the lock shaft of the isolation lock to disengage the isolation lock, wherein the isolation lock also includes a tenon shaft to which the one or more tenons are coupled and configured to pivot about an axis of the tenon shaft, the lever arm body of the isolation lock coupled with the tenon shaft and including a first arm and a second arm on opposite sides of the tenon shaft.