| 摘要 |
A padlock comprises a shackle, a housing and a combination lock mechanism. The shackle comprises a leg. The housing comprises a first shell and a second shell. The first and second shells co-define a channel for receiving the leg. The first shell has an inner wall formed with a row of first protrusions. The combination lock mechanism comprises a set of teethed sleeves rotatably coupled around the leg of the shackle and a set of numeral wheels rotatably coupled around the teethed sleeves such as to control movements of the leg. The teethed sleeves each defines a first groove corresponding to a respective one of the first protrusions of the first shell. Accordingly, as long as the numeral wheels are dialed to a correct number, all the first grooves of the teethed sleeves are aligned with the first protrusions of the first shell correspondingly so that the leg of the shackle is allowed to move vertically.
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