Patent ID: 6536245
Filing Date: 2003-03-25
Classification: E05B,Y10S,Y10T

Abstract:
A panic door lock comprising:a housing (1); a dead bolt (11) movable in said housing (1) between a first extended position and a first retracted position, said dead bolt (11) being spring-loaded and tending to be moved to said first extended position, said dead bolt (11) having a slot (111) defined therein; a detent (17) pivoted on said housing and having an inner claw (171) adapted to enter said slot (111) and retain said dead bolt (11) in said first retracted position as long as said dead bolt (11) is moved to said first retracted position; a tumbler (18) pivoted on said housing (1) and having an outer claw (181), said tumbler (18) being adapted to be driven to a holding position, in which said outer claw (181) enters said slot (111) and retains said dead bolt (11) in said first extended position, as long as said dead bolt (11) is moved to said first extended position; a rocker (16) for driving said tumbler (18) away from said holding position so that said outer claw (181) may exit said slot (111) and release said dead bolt from said extended position; and a spring-loaded trigger (19) having a tip normally extended out from said housing (1), said trigger (19) engageable with said detent (17) so that said inner claw (171) may exit said slot (111) and release said dead bolt (11) from said first retracted position when said tip of said trigger (19) is pressed into said housing (1).