| 摘要 |
1,120,167. Escapements. W. HOLZER. 7 March, 1966 [8 April, 1965], No. 9775/66. Heading F2X. An escapement, which may be used in a washing machine, has a continuously windable spring force storage means 3, a stepping mechanism 5 and a coil-spring clutch 12 acting on the stepping mechanism under control of the storage means 3. The clutch consists of a coil spring wound around separate coaxial shafts 9, 10 and having its upper end free while its lower end is anchored to a control disc 8 driven through gearing from a motor 2 which also winds the spring storage means 3 through gearing. The movement of the stepping mechanism 5 is released after every half or full revolution of the spring storage means 3 by an escapement 6. Initially, the shaft 10 drives the shaft 9 by friction until the speed of the latter shaft falls sufficiently to unwind the spring 12 when the drive is disengaged. Rotation of the disc 8 eventually tightens the spring to re-engage the drive and the process is continuously repeated. In a further embodiment, the clutch 12 is replaced by a lever escapement spring-loaded into engagement with a constantly driven eccentric and having claws to engage teeth on the periphery of the stepping mechanism. The latter may also be directly driven from the spring storage means and be connected by feedback gearing to an over-ride clutch in the drive from the motor to the spring means. |
