Patent ID: 7004516
Filing Date: 2006-02-28
Classification: B60J,B61D,E05B,E05F,E05Y,Y10S,Y10T

Abstract:
1. A locking device disposed within a door operator of a passenger transit vehicle door system for locking a door hanger of such transit vehicle door system in a fully locked position, said door hanger attached to a door of such transit vehicle, said locking device further unlocking said door hanger of such transit vehicle door system from said fully locked position, said locking device comprising: (a) a lock bar disposed within said door hanger, said lock bar having at least one locking cavity; (b) a lock shaft disposed within said locking device; (c) a lock actuator rotatably attached on said lock shaft for enabling rotation of said lock shaft; (d) a lock lever attached to said lock shaft for engagement with said at least one locking cavity for maintaining said door hanger in said fully locked position, said lock lever movable into an unlock position enabled by said lock actuator; and (e) a lock latch mechanism disposed within such passenger transit door system, said lock latch mechanism including an unlocking cam attached to one end of said lock shaft for rotation therewith, a lock latch lever pivotally biased for engagement with a first portion of said unlocking cam for maintaining said lock lever in said unlock position and for enabling movement of said door hanger in an opening direction and for enabling movement of said door into an open position, said lock latch lever biased for engagement with a second portion of said unlocking cam when said lock lever engaged with said at least one locking cavity of said lock bar and a reset lever attached to said door hanger and engageable with said lock latch lever for pivotably moving thereof from engagement with said first portion into engagement with said second portion of said unlocking cam and for enabling rotation of said lock shaft and engagement of said lock lever with said locking cavity upon movement of said door hanger in said closing direction.