Hospital bed convertible to chair
First Claim
1. A bed that converts to a chair comprising,a base including a fixed horizontal frame,a patient support consisting of serially-hinged, normally horizontal head, seat, thigh and calf panels,means mounting said patient support on said fixed frame,first power means for pivoting said head panel upwardly so as patient can sit up comfortably in bed,second power means for pivoting said head panel upwardly and swinging said calf panel down to an approximately vertical attitude to create a chair configuration of said panels.
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Accused Products
Abstract
A bed that is convertible to a chair. The bed has a retracting frame mounted on a fixed frame. A patient support is formed by serially-connected head, seat, thigh, calf and foot panels, with the seat panel being fixed to the retracting frame. Movement of the retracting frame toward the foot end of the bed causes the head panel to rise and the leg panel to drop, thereby creating a chair.
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Citations
20 Claims
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1. A bed that converts to a chair comprising,
a base including a fixed horizontal frame, a patient support consisting of serially-hinged, normally horizontal head, seat, thigh and calf panels, means mounting said patient support on said fixed frame, first power means for pivoting said head panel upwardly so as patient can sit up comfortably in bed, second power means for pivoting said head panel upwardly and swinging said calf panel down to an approximately vertical attitude to create a chair configuration of said panels.
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4. A bed that converts to a chair comprising,
a base frame having head and foot ends and casters supporting said base frame above a floor, an upwardly-inclined parallelogram support linkage pivotally connected at its lower end to said base frame at the head end of said base frame, a fixed frame connected to the upper end of said support linkage, a patient support consisting of serially-hinged, normally horizontal head, seat, thigh, calf and foot panels, said head panel overlying the head end of said base frame, means mounting said patient support on said fixed frame, power and linkage means for raising said head panel and swinging said calf and foot panels downwardly while maintaining said foot panel horizontal.
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7. A bed that converts to a chair comprising,
a base including a fixed frame having a head end and a foot end, a retracting frame slidably mounted on said fixed frame for movement between a bed position and a chair position wherein said retracting frame has moved toward said foot end of said fixed frame, chair power means for retracting said retracting frame between its two positions, a patient support consisting of serially hinged, normally horizontal head, seat, thigh, calf and foot panels, said seat panel being fixed to said retracting frame, and said foot panel being adjacent the foot end of said fixed frame, a pair of control links pivotally connected between said fixed frame and the end of said calf panel adjacent said foot panel, said control links causing said calf panel to swing downwardly when said retracting frame is moved toward the foot end of said fixed frame.
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17. A bed that converts to a chair comprising,
a base, a fixed frame mounted on said base, a retracting frame mounted on said fixed frame for movement between a forward position in which a chair is formed and a rearward position in which a bed is formed, serially-hinged head, seat, thigh, calf and foot panels, said seat panel being mounted on said retracting frame with said foot panel extending in a forward direction, a first piston and cylinder for upwardly pivoting said head panel when said retracting frame is in a rearward position and all remaining panels are substantially horizontal, a second piston and cylinder for pivoting said thigh panel upwardly when said retracting frame is in a rearward position, a third piston and cylinder for thrusting said retracting frame to its forward position, and linkage means for swinging said head panel upwardly, said calf panel downwardly and maintaining said foot panel parallel to said seat panel when said retracting frame is thrust to its forward position.
Specification