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 Manual cover drive for swimming pools

Details
Inventors: Last, Harry J.;
Assignee:
Primary Examiner: Fetsuga; Robert M.
Assistant Examiner:
Attorney, Agent or Firm: Schaap; Robert J.

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.

DETAILED DESCRIPTION I claim: 1.
A manual cover drive for winding a cover around a cover drum for retracting an extended cover comprising, in combination: a) a drive shaft coupled for rotating the cover drum in a winding direction to wind the cover around the cover drum, b) at least one overrunning one way clutch mechanism overrunning around and engaging the drive shaft and being oriented to engage the drive shaft when rotated in a winding direction, c) said overrunning one way clutch mechanism comprising: 1) an inner race overrunning around the drive shaft, 2) an outer race to overrun around the drive shaft when the drive shaft rotates in a winding direction and to engage and rotate with the shaft when the drive shaft rotates in an unwinding direction, d) a passive brake mechanism coupled to said overrunning one way clutch mechanism and comprising a friction bushing surface normally engaged against the outer race of the clutch mechanism for preventing rotation of the outer race, e) means for causing manually powered movement releasably coupled to and causing rotation of said overrunning one way clutch mechanism, whereby, movement of the overrunning one way clutch mechanism journaled around the drive shaft rotates the cover drum winding the cover around the cover drum and thereby retracting the extended cover while said passive brake mechanism prevents overspinning thereof.
2.
The manual cover drive for winding a cover around a cover drum for retracting a cover of claim 1 and also comprising: a) at least one lever handle, b) said overrunning one way clutch mechanism mounted at the distal end of each lever handle sized to slip onto, overrun around and engage the drive shaft, whereby, slipping the overrunning one way clutch mechanism mounted at the distal end of one lever handle around the drive shaft and reciprocating the lever handle back and forth in a power and a return stroke responsive to human limb movement rotates the cover drum winding the cover around the cover drum thereby retracting the extended cover


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