Hospital bed collapsible for storage and transport

• US 5,257,428 A
• Filed: 06/24/1992
• Issued: 11/02/1993
• Est. Priority Date: 06/24/1991
• Status: Expired due to Fees

• Current Assignee: Carroll Intelli Corporation
• Original Assignee: Carroll Equipment Sales Corporation
• Inventors: Carroll, Timothy, Kellins, Margaret L.
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): Saether, Flemming
• Application Number:
  US07/903,409
• Time in Patent Office: 496 Days
• Field of Search: 5/600, 5/611, 5/618, 5/620, 5/201, 5/285, 5/286, 5/287, 5/613, 5/313.1, 5/310
• US Class Current: 5/620
• CPC Class Codes: A47C 19/122 foldable head to foot only
• CPC Class Codes: A61G 7/002 having adjustable mattress frame

Abstract

A hospital bed, particulary suitable for home use comprises a plurality of sections which can be releasably connected together, and can be assembled for delivery and storage with head and foot sections, and head and foot boards stacked on a seat section. When thus assembled the bed can be put into a box and for ease of movement wheels project through the bottom of the box. The various sections and parts are releasably connected by pairs of brackets which clip together, the brackets held together by a clip which prevents disengagement. Power means are provided for raising the head section board and the foot section board. The bed has fixed legs which are provided with wheels. Movable legs can also be provided, extendable and retractable. When the movable legs are extended the fixed legs are raised, the wheels clear the floor. Power means are provided for moving the movable legs, and the movable legs, power means and associated parts can be removably mounted on the bed.

Claims

1. A knock-down bed separable into three frame components and a head board and a foot board for re-assembly into a packed bed for ease of storage and transport comprising:

a head section, a foot section and a seat section, each section including a frame;

means for releasably connecting said head section at an inner end to one end of said seat section and for releasably connecting said foot section at an inner end to the other end of said seat section;

a set of fixed support legs comprising a pair of legs mounted on the frames of each of said head and foot section;

a mattress deck comprising a head section board pivotally mounted at the inner end of the head section, a seat section board secured to the seat section and articulated foot section boards pivotally mounted at the inner end of the foot section;

means mounted on said head section frame for pivotally raising said head section board;

means mounted on said foot section frame for pivotally raising said foot section boards;

a head board and a foot board and means for releasably mounting said head board and said foot board respectively at outer ends of the head section and the foot section; and

wheels detachably mounted on bottom ends of said fixed legs, whereby upon knock-down of the bed into components the head board and the foot board are securable to the seat section to form a base for receiving the head section and the foot section.

2. A bed as claimed in claim 1, said means for releasably connecting said head section and said foot section to said seat section and said means for releasably mounting said head board and said foot board to the head section and the foot section comprising a plurality of pairs of cooperating brackets, one bracket of a pair having laterally extending projections and the other bracket of a pair having slots for receiving said projections.

3. A bed as claimed in claim 2, each pair of cooperating brackets including a clip extending over an edge of the pair of brackets and engaging with a projection to prevent movement of said projection in its slot.

4. A bed as claimed in claim 2, each pair of cooperating brackets comprising a first bracket and a cooperative bracket;

a first bracket at each side of said head section at said inner end and a cooperative bracket at each side of said one end of said seat section; and

a first bracket at each side of said foot section at said inner end and a cooperative bracket at each side of said other end of said seat section

5. A bed as claimed in claim 4, said projections formed on one of said first bracket and said cooperative bracket of each pair and said slots formed in the other of said first bracket and said cooperative bracket of each pair.

6. A bed as claimed in claim 5, said projections comprising pins extending laterally, a clip extending over an edge of the pair of brackets, said clip comprising a U-shaped member having parallel legs, extending over each pair of brackets, at least one leg having a hole for engagement over a pin.

7. A bed as claimed in claim 1, said means for raising said head section board including an electric motor, a linear jack driven at one end by said motor and at least one arm pivotally attached at one end to the other end of said jack, said arm fixedly attached at its other end to said head section board, whereby on actuation of said motor of said head section board is caused to move up and down pivoting about an inner edge.

8. A bed as claimed in claim 7, said means for raising said foot section boards including an electric motor, a linear jack driven at one end by said motor, and at least one arm pivotally attached at one end to the other end of said jack, said arm fixedly attached at its upper end to one of said foot section boards, whereby an actuation of said motor said foot section boards are caused to move up and down at their adjacent edges, pivoting at their spaced edges

9. A bed as claimed in claim 8, including a connecting box mounted on said seat board, electrical connecting means for connecting said electric motors to said connecting box, and further electrical connecting means for connecting said electrical box to a power supply.

10. A bed as claimed in claim 9, including a control box connected to said connecting box for controlling said motors.

11. A bed as claimed in claim 1, further comprising;

a set of movable legs and means mounting a movable leg on each fixed leg;

said means mounting each movable leg including an arm pivotally attached at one end to a fixed leg and pivotally attached at the other end to a movable leg;

a lever pivotally attached at one end to a movable leg a distance from said arm, said lever fixedly mounted at the other end on a shaft;

said shaft pivotally mounted on a said pair of fixed legs, a shaft, levers and arms provided at each of said head section and said foot section;

at least one further lever pivotally mounted on one end of each of said shafts, and an elongate connecting member pivotally connected at its ends to the other ends of said further levers;

and means for rotating said shafts whereby said movable legs can be extended and retracted.

12. A bed as claimed in claim 11, said means for rotating said shafts comprising an electric motor mounted on said frame of one of said head section and said foot section, a linear jack driven at one end by said motor, said jack pivotally connected at its other end to one end of a third lever fixedly attached at its other end on the shaft mounted at said one of said head section and said foot section.

13. A bed as claimed in claim 12, said shafts and said arms, said jack and said motor, removably mounted on said fixed legs.

14. A bed as claimed in claim 12 including a connecting box mounted on said seat board, electrical connecting means for connecting said motor to said connecting box, and further electrical connecting means for connecting said connecting box to a power supply.

15. A bed as claimed in claim 14, including a control box connected to said connecting box for controlling said motor.

16. A bed as claimed in claim 1, said means for releasably mounting said head board and said foot board comprising a plurality of pairs of cooperating brackets, one bracket of a pair having laterally extending projections and the other bracket of a pair having slots receiving said projections.

17. A bed as claimed in claim 16, each pair of cooperating brackets including a clip extending over an edge of the pair of brackets and engaging with a projection, to prevent movement of the projection in its slot.

18. A bed as claimed in claim 17, each pair of cooperating brackets comprising a first bracket and a cooperative bracket;

a first bracket at each side of said head section at an outer end and a cooperative bracket at each side of said head board, and a first bracket at each side of said foot section at an outer end and a cooperative bracket at each side of said foot board.

19. A bed as claimed in claim 18, said projections formed on one of said first bracket and said cooperative bracket of each pair and said slots formed in the outer of said first bracket and said cooperative bracket of each pair.

20. A bed as claimed in claim 19, said projections comprising pins extending laterally and said clip comprising a U-shaped member having parallel legs extending over each pair of brackets, at least one leg having a hole for engagement over a pin.