| 摘要 |
Apparatus for automatically resetting tethered bowling pins including a tether tension responsive device, a lift mechanism for raising and resetting the pins, a clutch assembly asociated with each tether, and a device for controlling the clutch assemblies. The tension responsive device includes a pawl associated with each tether in such manner as to be disengaged therefrom in response to the tension in the tether which results from the felling of the associated pin. Upon the sensing of any felled pin, the lift mechanism is operated to raise all of the pins to a standby position. After the pins have been raised to their standby position, those tethers associated with felled pins are braked by their respective clutch assemblies, and the remaining pins are reset by the lift mechanism. In the event that all the pins are felled by a ball, the operation as described above is repeated with the exception that after all of the tethers have been braked by the clutch assemblies, the latter are restored to neutral positions by the clutch assembly control device to thereby allow all the pins to be reset. |
