| 摘要 |
<p>SWIMMING POOL COVER of the Invention A protective swimming pool covering apparatus is disclosed wherein the apparatus includes a flexible impervious cover sheet capable of being extended and retracted over a swimming pool. Each lateral side of the cover sheet is adapted with a longitudinally beaded side edge which is slideably held in a longitudinal open channel or track cut into a slideway member fixed to the longitudinal margins of the swimming pool. The longitudinal opening of the slideway means is sized such that it is slightly smaller than the diameter of the beaded side edge such that under normal operating conditions the bead will be slideably held within the track or channel. However, under conditions of excessive lateral stress, the bead will be sufficiently compressed and be pulled through the opening and away from the channel. In addition, the end sections of the slideway means is adapted with a stationary channeled guide piece having a pair of flared end sections and a longitudinal side opening. The stationary guide piece is mounted such that the channels of the guide piece and the slideway means are in aligned registry with each other. The longitudinal side opening of the stationary guide piece is substantially smaller than the longitudinal side opening of the slideway means making disengagement of the bead from the channel opening substantially more difficult than that from the slideway means.</p> |
