| 主权项 |
1. A padlock comprising:
a shackle having a short leg portion, a long leg portion, and a toe at an end of the short leg portion and a heel at an end of the long leg portion; a housing having holes formed therein dimensioned to receive the toe and the heel of the shackle; the heel of the shackle positioned inside the housing, the shackle movable between an unlocked position with the toe positioned away from the housing and a locked position with the toe located inside the housing; a pole and a pole cover secured around a portion of the long leg of the shackle, a key mechanism having a locked state and an unlocked state, the key mechanism including a tumbler for receipt of a key, and a shackle contacting member, the shackle contacting member passing through a slot formed in the pole and the pole cover, the shackle contacting member in contact with the shackle so as to prevent movement of the shackle relative to the key mechanism when the key mechanism is in the locked state, the shackle contacting member configured to move in the housing relative to the shackle so as to allow the shackle to move relative to both the housing and the pole so as to release the toe from the housing when the key mechanism is in the unlocked state; and a combination mechanism connected to the pole, the combination mechanism having a clutch-end engaged with slopes formed in the pole when the combination mechanism is in a locked state, the combination mechanism including a plurality of dials with teeth, a spindle placed in proximity to the dials and an overall clutch comprising a plurality of clutches such that when the dials are in an opening combination, extended protrusions of the spindle align with opening gaps of the clutches, allowing the clutches to move relative to the housing into a lock open position and allowing the pole and the pole cover to move relative to the housing so as to release the toe of the shackle from the housing when the shackle is pulled away from the housing, wherein the clutches comprise extended-fins movably engaged with the teeth of the dials and wherein the clutch-end has a lower slope and an upper slope movably engaged with the slopes formed in the pole, the lower slope configured to control movement of the pole in a first direction so as to release the toe of the shackle from the housing while the extended-fins of the clutches remain engaged with the teeth of the dials and the opening gaps of the clutches are engaged with the extended protrusions of the spindle so as to prevent the clutches from having rotational movement and thereby restricts rotation and movement of the dials, and the upper slope configured to control a reset state of the combination mechanism when the toe of the shackle has been released from the housing such that as the pole is caused to move in a second direction opposite to the first direction, the pole pushes the clutch-end, causing the clutches to move further relative to the housing in a third direction different from the first and second directions such that the extended-fins of the clutches disengage with the teeth of the dials, allowing the opening combination of the combination mechanism to be reset. |
