Vertically adjustable and tiltable bed frame
First Claim
Patent Images
1. A bed comprising a frame having a head end and a foot end;
- means mounting said frame for vertical movements and for tilting movements from and to a substantially horizontal position;
first actuating means coupled to said frame for raising and lowering said head end;
second actuating means coupled to said frame for raising and lowering said foot end;
first and second operating means coupled to the respective first and second actuating means for operating said first and second actuating means to tilt said frame to a selected tilted position relative to the horizontal; and
control means coupled to said first and second actuating means, said control means adapted to adjust the power supply to the respective activating means and operable to effect conjoint operation of said first and second actuating means for selectively raising and lowering said frame while said frame remains in a constant selected tilted position regardless of the uneven loading of the ends of the frame.
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Abstract
A vertically adjustable and tiltable bed frame has two actuators which may be used simultaneously or independently to tilt the frame and which also may be used to raise and lower the frame. A level sensor is connected to the actuators so that if the tilt varies from the adjusted and desired position, one or other actuator is adjusted to restore the desired tilted position.
210 Citations
8 Claims
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1. A bed comprising a frame having a head end and a foot end;
- means mounting said frame for vertical movements and for tilting movements from and to a substantially horizontal position;
first actuating means coupled to said frame for raising and lowering said head end;
second actuating means coupled to said frame for raising and lowering said foot end;
first and second operating means coupled to the respective first and second actuating means for operating said first and second actuating means to tilt said frame to a selected tilted position relative to the horizontal; and
control means coupled to said first and second actuating means, said control means adapted to adjust the power supply to the respective activating means and operable to effect conjoint operation of said first and second actuating means for selectively raising and lowering said frame while said frame remains in a constant selected tilted position regardless of the uneven loading of the ends of the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- means mounting said frame for vertical movements and for tilting movements from and to a substantially horizontal position;
Specification