Apparatus for covering a liquid basin, and roller-blind type cover for use therein
OwnerEngbert J. Duintjerinventor
Life of this patent
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Abstract
Apparatus for covering a liquid basin, such as a swimming pool. The apparatus comprises a roller-blind type cover assembled from hollow slats arranged to be spread over the surface of the liquid. According to the invention the cover is constructed so as to be stackable accordion-wise by the side of a shaft or roller with which the cover is spread over the surface of the liquid or withdrawn from it, thereby to reduce weight on said shaft or roller compared with a prior construction in which the cover is wound upon the shaft.
Claims4
Apparatus for covering a liquid basin, in particular a swimming pool, the apparatus being arranged outside the liquid basin, comprising a roller-blind type cover composed of hollow, elongated slats arranged to be spread over the surface of the liquid in floating condition, and to be removed from said surface wherein the longitudinal edge of each of the elongated slats is provided with a moulding of a first type, and the other longitudinal edge is provided with a moulding of a second type, the slats being assembled to form a roller-blind type cover in a pattern in which, in each adjacent pair of slats, the longitudinal edge with the moulding of the first type of one slat is slid into the moulding of the second type of the longitudinal edge of the other slat to form a slide connection permitting a hinge effect which, in each adjacent pair of slats includes an angle of at least approximately 90.degree. in the direction of one of the sides of the spread roller-blind type cover, and includes a considerably smaller angle than 90.degree. towards the other side, and the cover is assembled from a plurality of packets of slats, each packet including a plurality of slats in which, in one packet, in each pair of adjacent slats, the hinge effect includes the angle of at least approximately 90.degree., relative to the spread cover, towards one side thereof, and in the adjacent packet of slats towards the other side thereof, the adjacent packets of slats being interconnected by means of an elongated coupling member having moulded longitudinal edges, one longitudinal edge of which coupling member is slid into the moulding of the first type of the longitudinal edge belonging to the end slat of one packet of slats, and the other longitudinal edge of which coupling member is slid into the moulding of the second type of the longitudinal edge belonging to the initial slat of the adjacent packet of slats to form a coupling which, relative to the spread roller-blind cover, has a hinge effect including an angle of substantially 180.degree. to provide for an accordion-wise stacking of the cover upon retraction of said cover from the surface of the liquid in the liquid basin.
Apparatus for covering a liquid basin, in particular a swimming pool, the apparatus being arranged outside the liquid basin, comprising a roller-blind type cover composed of hollow, elongated slats arranged to be spread over and removed from the surface of the liquid in floating condition by a horizontal rotatable shaft, wherein the longitudinal edge of each of the slats is provided with a moulding of a first type, and the other longitudinal edge is provided with a moulding of a second type, the slats being assembled to form a roller-blind type cover in a pattern in which, in each adjacent pair of slats, the longitudinal edge with the moulding of the first type of one slat is slid into the moulding of the second type of the longitudinal edge of the other slat to form a slide connection permitting a hinge effect which, in each adjacent pair of slats includes an angle of at least approximately 90.degree. in the direction of one of the sides of the spread roller-blind type cover, and includes a considerably smaller angle than 90.degree. towards the other side, and the cover is assembled from a plurality of packets of slats, each packet including an equal number of slats in which, in one packet in each pair of adjacent slats, the hinge effect includes the angle of at least approximately 90.degree., relative to the spread cover, towards one side thereof, and in the adjacent packet of slats towards the other side thereof, the adjacent packets of slats being interconnected by means of an elongated coupling member having moulded longitudinal edges, one longitudinal edge of which coupling member is slid into the moulding of the first type of the longitudinal edge belonging to the end slat of one packet of slats, and the other longitudinal edge of which coupling member is slid into the moulding of the second type of the longitudinal edge belonging to the initial slat of the adjacent packet of slats to form a coupling which, relative to the spread roller-blind type cover, has a hinge effect including an angle of substantially 180.degree. to provide for an accordion-wise stacking of the cover upon retraction of said cover from the surface of the liquid in the liquid basin, and wherein the rotatable shaft is driven by a motor and is formed as a supporting roller with a non-slip surface combined with a superimposed compression roller to form a roller pair defining a rip between them through which the roller-blind cover is passed and transported to and from the liquid surface.
Dependencies are inferred from the claim text.