Combination lock assembly
AssigneeFederal Lock Co., Ltd.
InventorTien-Kao Liu
Life of this patent
Estimating the term…
Abstract
A lock includes a housing in which a combination lock is received. The combination lock is unlocked when the combination unit of the combination lock is located at an unlocked position. The combination lock has a cam pin which is operated when the combination lock is unlocked and locked. A button is pushed to drive a cam which is located beside the combination lock. When the combination lock is locked, the cam pin is connected to the restriction hole to restrict the cam, and the latch is in its locked status. When the combination lock is unlocked, the cam pin is removed from the restriction hole. When the button is pushed, the cam is rotated to release the latch from the room of the housing. The combination of the combination lock can be changed by operating the operation bar when the combination lock is unlocked.
Claims20
A lock comprising:
- a housing (1) being a cylindrical housing and having a lateral hole (11), a recessed portion (12) defined in the housing (1) and communicating with the lateral hole (11), a cover (121) connected to the housing (1) and sealing the recessed portion (12), the housing (1) having a through hole (13), a room (14) defined in one end of the lateral hole (11), a latch path (15) defined radially in the housing (1) and communicating with the room (14);
- a combination lock (2) having a combination unit and received in the recessed portion (12), the combination unit having a portion thereof located corresponding to the lateral hole (11), the combination lock (2) having a cam pin (22) which is located at a first position when the combination lock (2) is in an unlocked status, the cam pin (22) located at a second position when the combination lock (2) is a locked status;
- a button (3) extending through the through hole (13), a first end of the button (3) in the housing (1) actuating a cam (4) which is rotated by the button (3), the cam (4) located beside the combination lock (2), the cam pin (22) located corresponding to a restriction hole (41) within a periphery of the cam (4), the cam (4) located corresponding to a side of the latch path (15), and
- a latch (5) located corresponding to the latch path (15) and having a locking portion (51), when the combination lock (2) is in the locked status, the cam pin (22) is located in the restriction hole (41) to restrict the cam (4), the latch (5) is engaged with the room (14), the cam (4) is stopped by the locking portion (51), when the combination lock (2) is in the unlocked status, the cam pin (22) is removed from the restriction hole (41), the cam (4) is rotated by pushing the button (3) and the cam (4) is not stopped by the locking portion (51), and the latch (5) is removed from the room (14).
Dependencies are inferred from the claim text.