Invalid transfer arrangement

Claim 1

An invalid transfer system comprising a wheelchair removably held in position at the end of a bed by a latch; the wheelchair having wheels, a chair frame with two sides, and a removable back rest; a leg rest with a foot rest attached thereto; a support frame having a front, a back and two sides and being attached by pivots to each side of the chair frame; a seat having a front and a back; the front of the seat being connected by a hinge to the front of the support frame; the seat being horizontal in a seating position and resting on the support frame when the support frame is horizontal; a leg rest hinged at one end to the front of the support frame and being pivotably connected by links to the chair frame such that the leg rest is movable between a seating position sloping down from the seat and a substantially level transfer position over the seat; the support frame and the seat rotating from a normal horizontal position to an inverted horizontal position when the leg rest is moved from the seating position to the transfer position; seat rollers on the seat and roller supports on the chair frame for supporting the back of the seat as the leg rest is moved up from the seating position; the back of the seat dropping and rotating down to the support frame after further motion of the leg rest causes the seat rollers to move beyond the roller supports; a spring for holding the seat against the support frame; the support frame rotating to an inverted position as the leg rest moves to to the transfer position; the roller supports having sections pivoted to move up to allow the seat rollers to pass when the seat and support frame rotate from the inverted position to the seating position; said bed having a mattress in vicinity of and at substantially the height of said leg rest in said transfer position; a transport sheet on which a person may recline extending across the mattress between rollers in vicinity of head and foot ends of the bed; the transport sheet being attached and partially rolled up on said rollers; sheet drive means on the bed for rolling the transport port sheet onto one of said rollers and off another said rollers and thereby moving said transport sheet across the mattress and transporting a a reclining person across the bed and onto the leg rest when the leg rest is in said transfer position; leg rest drive means for moving the leg rest and seat to said seating position and moving the person onto the seat; lift means for lifting part of the mattress and raising the reclining person to a sitting position on the seat; control means for regulating operation of the transfer system.