Hospital bed
First Claim
1. A hospital bed comprising a base frame, a displaceable frame supported above said base frame by adjustable leg supports, said leg supports being connected in pair and spaced apart adjacent a respective end of said frames, said leg supports of each pair operating in unison and each having an upper link arm and a lower link arm, said link arms being connected at a common end to a fixed pivot rod for displacement of their axes thereabout, said pivot rod being fixed relative to said displaceable frame, first drive means connected to said adjustable leg supports for causing said displaceable frame to be displaced above said base frame, and follower means connected to a lower end of said leg supports to maintain said displaceable frame in lateral relationship with said base frame when displaced relative thereof.
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Accused Products
Abstract
A hospital bed of the type having a base frame and a displaceable frame supported above the base frame by adjustable leg supports whereby the adjustable frame may be displaced vertically above the base frame in parallel relation or at an angular position such as a trendelenburg position. The leg supports are connected in pair and spaced apart adjacent a respective end of the frames. An articulated panelized frame is supported above the displaceable frame and the panels are articulated by an actuating mechanism. A first drive is connected to the adjustable leg supports to cause the displaceable frame to be displaced above the base frame. A follower mechanism is connected to a lower end of the leg supports to maintain the displaceable frame in lateral relationship with the base frame when displaced relative thereto. A second drive is connected to the actuating mechanism of the panelized frame to selectively displace the angular position of the panels.
53 Citations
18 Claims
- 1. A hospital bed comprising a base frame, a displaceable frame supported above said base frame by adjustable leg supports, said leg supports being connected in pair and spaced apart adjacent a respective end of said frames, said leg supports of each pair operating in unison and each having an upper link arm and a lower link arm, said link arms being connected at a common end to a fixed pivot rod for displacement of their axes thereabout, said pivot rod being fixed relative to said displaceable frame, first drive means connected to said adjustable leg supports for causing said displaceable frame to be displaced above said base frame, and follower means connected to a lower end of said leg supports to maintain said displaceable frame in lateral relationship with said base frame when displaced relative thereof.
Specification