| 摘要 |
<p>A self powered lock is powered by manually driving a generator (26) through rotation of the dial (15) in a first direction. The data input to the lock is entered by rotating the dial (15) in the opposite direction and stopping and waiting a predetermined amount of time when a desired number is displayed on the lock display. The drive of the power generator (26), a stepper motor, is through a unidirectional clutch (17), such that the generator (26) is only driven when the dial (15) is rotated in a selected direction and remains stationary when the dial (15) is rotated in the opposite direction. The data input, including entry of the combination, to the lock is provided by a stepper motor (40) which generates a train of electrical pulses. The electrical pulses are used by the electronic controls of the lock to control the electronic controls including entering the combination. The data input generator (40) is similarly driven through a unidirectional clutch (44-49) and is driven only when the dial (15) is being rotated in a direction opposite the direction in which the power generator (26) is driven. Accordingly, only the power generator (26) or the data input generator (40) is driven at any one time, depending upon the direction of rotation of the dial (15). A third unidirectional clutch (51) is used to grasp the shaft (50) of the data input stepper motor (40), preventing the reverse rotation of the shaft (50) when the dial (15) of the lock is rotated to generate operating power. <IMAGE> <IMAGE></p> |
