Patent ID: 6170122
Filing Date: 2001-01-09
Classification: A45C,Y10T

Abstract:
A push button device for use in releasing a locking mechanism comprising:a housing comprises an upper half and a lower half defining a cavity contained therein, said upper half having an opening therethrough for a push button to more up and down freely in said opening,a pair of sliding blocks situated in the cavity of said housing capable of moving only in a longitudinal direction of said housing, each of said sliding block having a leg portion extending toward each other and an inclined top surface mirror imaged to each other, each of said leg portion having a gear face provided in a surface that faces the other leg portion, a gear wheel engaging said gear face on said surface of each of said leg portion, a pair of drive cables, each of said sliding blocks is attached to and is capable of pulling one of said drive cables toward said opening in said upper half of housing, anda push button positioned in said opening in the upper half of the housing having a pair of inclined surfaces on its bottom surface adapted for engaging the inclined surfaces on said two sliding blocks, such that when the push button is pressed down, the inclined surfaces on the bottom of the push button engages the inclined surfaces on the two sliding blocks and thereby pulling the blocks toward each other while a synchronized motion being aided by an engagement between the gear wheel and the gear faces on the two leg portions of the blocks operating in a rack-and-pinion manner such that the pair of drive cables are pulled toward said push button for releasing said locking mechanism, anda spring retracts said push button to its upper position.