| 摘要 |
<p>. To permit individual retensioning and readjustment of cable length, to compensate for stretch of cables (2) attached to the heads of bowling pins (1), each cable (2) is looped about an individual associated storage drum (6), which is secured to an individual rocker plate (9), held in a first predetermined or rest position by a spring (8). The storage drum is prevented from rotation in a cable pay-out direction by a ratchet (22, 28), but can be rotated in cable pick-up direction by an externally controllable cable tensioning drive. If the cable tension applied between the head of the pin and the storage drum exceeds the force of the restoring spring (8) applied to the rocker plate, the rocker plate will pivot, thus permitting: engagement of the latch (28) of the ratchet with an electromagnetically positionable engagement element (10), thus permitting notation of the storage drum in the cable pay-out direction (D).</p> |
