| 摘要 |
An invented track construct component system with a threaded radial bearing end pulley is described for pool cover systems that includes an extruded longitudinal cover track having a top longitudinal anchoring slot, a C-channel longitudinal slot along one side edge for capturing and holding a side edge of a pool cover and associated sliders carrying a leading (front) edge structures, a cable return channel with a longitudinal slot opening along the other side edge for receiving and protecting cabling connecting between sliders/front cover comers and associated cable reels. Each cover track is secured within separate extruded side wall channel structures having a top channel side wall with a depending longitudinal shaped for snuggly fitting into the longitudinal anchoring slot of the cover track. The extruded side wall channel structures are incorporated into the side wall of the pool. A longitudinal spacer plate is inserted between the bottom channel side wall of the wall channel structure and the planar base face of the anchor track for mechanically holding the cover track within the wall channel with its anchoring slot snuggly receiving the depending longitudinal land of the wall channel. A similar extruded wall channel structure is incorporated into the end wall of the pool for accommodating an extending coupling plate-radial bearing end pulley assembly fastened at the distal end of the cover track.The radial bearing end pulley includes a novel inner annular race with an interior helical thread for screwing onto a perpendicularly extending, complementarily threaded, post integral with the coupling plate, and a rotating outer annular race with a concave exterior, circumferential groove for receiving, carrying and returning cabling connecting between a slider/front cover corner and a cable reel.
|
