Adjustable bed having adjustable height legs with synchronizatio

Details Adjustable bed having adjustable height legs with synchronizatio Adjustable bed having adjustable height legs with synchronizatio

1991-02-07

1992-08-04

Trettel, Michael F.

Beds

Adjustable height

5611, 744248R, 74459, 74 8915, 192141, A61G 700, F16H 2702

Patent

active

051347318

ABSTRACT:
An adjustable bed comprises a head end, a foot end, and a planar mattress portion extending therebetween. The head end and foot end feature a drive screw and nut housing assembly. Each head end and foot end features tubes which are slidingly received within the head end and foot end. The tubes are attached via a cable to the nut housing. Upon rotation of the drive screw, the nut housing rises or descends, thereby adjusting the height of the bed. The translational movement of the nut housing along the drive screw is limited by a drive screw pin at the upper and lower extremities of each drive screw. The drive screw pin selectively engages a similar slip nut pin located on a slip nut which is received within the nut housing. Frictional force between the slip nut and the nut housing is maintained by a pair of pressure plates which are compressively received within the nut housing. The compressive force between the slip nut and the nut housing is adjusted by means of a pair of set screws and springs.

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