Swimming pool cover

DETAILED DESCRIPTION A swimming pool cover for an indoor swimming pool has an upper surface which is flush with the floor surface of the room in which the swimming pool is placed, and which can be raised through a suitable mechanism to a position wherein it is substantially above the pool so the pool can be used.
The pool cover is sturdy enough to provide a floor surface when in place covering the pool, so that the room can be used for normal use such as recreation room for a dance floor or the like.
The lifting apparatus includes a winch that operate cables to raise and lower the pool cover.
The pool cover is guided by suitable upright guides that stabilize the cover and prevent it from twisting or swaying, and further include safety latches that prevent falling of the cover unless it is desired that such reverse movement be permitted (when the cover is lowered).
Mechanical latches are used so that during the raising if a cable breaks it would not cause any damage.
Upon raising the pool cover to the desired height, the latches can be used for holding the cover in place and then when the pool cover is to be lowered, the cover may first be raised to a full height where the one set of latches is disabled, after which the pool cover can be lowered, without the latches engaging.
The lift cables also are connected to the pool cover through spring loaded safety catches which are held disengaged when the cables are under tension, but as soon as tension is gone the latches will engage to prevent accidental dropping of the pool cover.
During the lowering operation the main latches are disengaged, but, during that time the operators and others will be out of the way because the pool is going to be covered, and the cable tension sensitive latches are still operable.
When the pool cover is fully lowered the latch is reset mechanically so that it will be operable the next time the pool cover is raised.
The floor is made so that it is rigid enough to provide adequate suport, and because it is guided into position it fits easily within the recess