Convertible bed

• US 4,862,530 A
• Filed: 07/27/1987
• Issued: 09/05/1989
• Est. Priority Date: 07/27/1987
• Status: Expired due to Fees

• Current Assignee: Chung C. Chen
• Original Assignee: Chung C. Chen
• Inventors: Chen, Chung C.
• Primary Examiner(s): Smith, Gary L.
• Assistant Examiner(s): Trettel, Michael F.
• Application Number:
  US07/078,579
• Time in Patent Office: 771 Days
• Field of Search: 5/60, 5/66-69
• US Class Current: 5/618
• CPC Class Codes: A61G 5/006 convertible to stretchers or beds
• CPC Class Codes: A61G 7/002 having adjustable mattress frame

Abstract

The convertible bed of this invention includes a bed which can be converted to a chair so that the user can sit on it. The user can push a button to actuate a driving means to rotate the chair so that the user can easily fall into sleep, where the button can be released naturally, and the chair can automatically convert to a bed. A brake means, a speed control means, a safety belt for restraining the user, and warning lights are also provided.

Claims

1. A convertible bed, comprising:

a first frame having a rotational axis and being rotatable about its rotational axis, including a back section, a seat section adjacent to said back section, and a leg section adjacent to said seat section, wherein said first frame can assume a first orientation;

first driving means for moving the back section relative to the seat section;

second driving means for moving the leg section relative to the seat section;

third driving means for rotating the first frame about its rotational axis;

first control means for controlling the third driving means so that the third driving means continually rotates the first frame about its rotational axis as long as the first control means is activated; and

;

second control means, responsive to deactivation of the first control means, for controlling the operation of the three driving means so that when the first control means is deactivated, the first frame gradually converts from said first orientation to a second orientation.

2. The convertible bed of claim 1, wherein rotation of the first frame ceases upon deactivation of the first control means.

3. The convertible bed of claim 1, wherein said first control means is arranged to be activated by an occupant of the convertible bed.

4. The convertible bed of claim 1, further comprising a support comprising an outer supporting rod fixed to the first frame, an inner supporting rod supporting the outer supporting rod, a second frame fixed to the outer supporting rod, a third frame fixed to the inner supporting rod and having gears and at least one ring, at least two rollers slidably fixed to the second frame and contacting the ring of the third frame, and a base frame fastened to the lower end of the inner supporting rod.

5. The convertible bed of claim 4, further comprising:

at least one warning light attached to the second frame.

6. The convertible bed of claim 1, wherein the third driving means includes a motor, a speed reduction means, a speed control means, and a brake means, and said convertible bed further comprises:

an occupant restraining means, said restraining means including a safety belt, a manual release mechanism, an automatic release mechanism, and an automatic rewinding mechanism.

7. The convertible bed of claim 1, wherein said first frame further comprises two wing sections, said convertible bed further comprising:

a first cushion attached to said back section; and

a second cushion attached to both said seat section and said leg section, wherein each of the first and second cushions has at least two wing sections to cover the wing sections of the first frame.