Patent ID: 6550296
Filing Date: 2003-04-22
Classification: E05B,Y10T

Abstract:
In a door locking handle assembly with a built-in combination lock (19), the assembly being provided with a base body (1) which is fixedly mounted on a door (2), wherein a door handle (13) is pivoted to said base body (1) so as to be capable of being pulled out forward and pushed back rearward relative to said base body (1) and also turning sideward on a locking shaft (10) after completion of a pulling-out operation, wherein a rack (12) serving as a door bolt for said door (2) is directly or indirectly connected with said door handle (13) so as to be engaged with and disengaged from a receiving portion of a stationary frame element such as a main body of a box when said door handle (13) is pulled out forward and then turned sideward on said locking shaft (10) after completion of the pulling-out operation of said door handle (13), said rack (12) being slidably supported and guided in up and down linear motion relative to said door (2), the improvement wherein:said combination lock (19), which is provided with a plurality of marked dial discs (22), is incorporated in said door handle (13) and opened by turning each of said marked dial discs (22) a given number of times to establish a predetermined combination of marks provided in outer peripheral surfaces of said dial discs (22); a locking member (24) for preventing said door handle (13) from being pulled out of said base body (1) is juxtaposed with an inner surface of said door handle (13) to pass through a central portion of each of said plurality of said marked dial discs (22) of said combination lock (19); a rotor (44) of a cylinder lock (43) is embedded in a lock sleeve (46) in a manner such that said rotor (44) is not capable of rotating relative to said lock sleeve (46), said cylinder lock (43) being embedded in said base body (1); said lock sleeve (46) is provided with a locking projection (48) in an cuter peripheral surface to make said locking projection (48) engageable with a lower-end latch member (35) connected with a lower end portion of said locking member (24); both said marked dial discs (22) and said locking member (24) are resiliently pressed under a spring member (27), which permits said lower-end latch member (35) to be engaged with and disengaged from said locking projection (48) of said lock sleeve (46) when said rotor (44) of said cylinder lock (43) is turned to a locked and unlocked position by means of a key, respectively, said key being inserted into a keyhole of said rotor (44); and formed in said locking projection (48) of said lock sleeve (46) is a rear cam slope (50) for driving said locking member (24) upward against a resilient force exerted by said spring member (27) when said door handle (13) is pulled out of said base body (1) after said combination lock (19) is unlocked.