| 摘要 |
A manually powered swimming pool cover drive for extending and retracting swimming pool covers and which includes a pair of overrunning one way clutch devices for intermittent coupled rotation with and also freewheeling about a drive shaft. A drum rotates with the drive shaft and allows winding of a cover about the drum when retracted from a covered position over a swimming pool. A pair of one way clutches may be trained around a drive shaft and coupled for rotating a cable reel allowing for the winding of cables used to extend a swimming pool cover. The respective pairs of overrunning, one-way clutches are reciprocated back and forth respectively in a type of indexing operation, manually and with long lever handles for rotating the drive shafts. |
