초록 ▼

A device for cleaning a swimming pool has a pair of spaced parallel and aligned wings connected at their ends by bridge members to define a mouth, a bag fast with the wings at their trailing edges, a hinged draw-bar centrally connected to the front sides of the bridge members, triangular fins extend

A device for cleaning a swimming pool has a pair of spaced parallel and aligned wings connected at their ends by bridge members to define a mouth, a bag fast with the wings at their trailing edges, a hinged draw-bar centrally connected to the front sides of the bridge members, triangular fins extending from outer surfaces of the wings, and a connecting component for connection to a hose which supplied water under pressure, the connecting component being connected to the draw bar by a ball-and-socket joint and having two jets angled towards the draw-bar. The device is heavier than water and is such that when it sinks in water the wings pivot about the hinge of the draw bar so that their trailing edges are above their leading edges.

대표청구항 ▼

A heavier-than-water cleaning device for connection to a flexible hose to be drawn in submerged condition through the water in a swimming pool, said cleaning device comprising: a draw element having a leading end for connection to the flexible hose and a relatively wide trailing end; a wing assembly

A heavier-than-water cleaning device for connection to a flexible hose to be drawn in submerged condition through the water in a swimming pool, said cleaning device comprising: a draw element having a leading end for connection to the flexible hose and a relatively wide trailing end; a wing assembly including a pair of elongated, wing-like members, bridge members supporting the wing-like members in spaced, generally parallel condition, said wing-like members having leading edges adjacent said trailing end of said draw element, and means for securing a debris collecting bag with an open mouth to said wing-like members with the mouth opening forwardly between said wing-like members to collect debris; hinge means connecting said trailing end of said draw element to said wing assembly adjacent said leading edges to permit downward tilting of the leading edges of the wing-like members relative to the draw element and the bag; said wing assembly and said draw member having a center of gravity that is positioned closer to said leading edges than to the trailing edges of said wing-like members to cause the wing assembly to tilt said leading edges downwardly when sinking in the water, whereby the assembly will automatically assume an inclined condition and also will develop a downward hydrodynamic force when the device is drawn through the water; and longitudinally spaced triangular fins projecting outwardly from each of said wing-like members on opposite sides of the wing assembly and forming skids for engaging the floor of the pool, said fins having outer edges that are inclined away from the wing-like elements from the leading edges toward the trailing edges thereof to maintain the inclined condition of the wing assembly while the fins are in engagement with the floor of the pool.