Quick release coupling for head section of a hospital bed

Details Quick release coupling for head section of a hospital bed Quick release coupling for head section of a hospital bed

1992-10-21

1994-07-19

Grosz, Alexander

Beds

Invalid bed or surgical support

Sectional user supporting surface

5616, 74 8914, 74 8915, A61G 7015, A61G 7018

Patent

active

053296575

ABSTRACT:
A hospital bed includes an articulatable patient support with a fowler portion movable between horizontal and inclined positions relative to a frame of the bed. A reversible electric drive motor is supported on the frame of the bed and, through a reduction gearing arrangement and a releasible coupling mechanism, can rotatably drive a threaded shaft. A nut engages and is held against rotation with the shaft, and a linkage arrangement couples the nut to the fowler portion to effect reciprocal movement of the fowler portion in response to reciprocal movement of the nut along the shaft. A manual release is provided on the fowler portion and, when actuated, disengages the releasible coupling mechanism so that the threaded shaft is free to rotate independently of the motor and gearing arrangement.

REFERENCES:
patent: 4038709 (1977-08-01), Kerwit
patent: 4222131 (1980-09-01), Holdt et al.
patent: 4346487 (1982-08-01), Holdt et al.
patent: 4559655 (1985-12-01), Peck

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