Foldable bed frames and supports and connecting mechanisms for foldable bed frames

Patent metadata

Field	Value
Publication number	US-10602852-B2
Application number	US-201615144597-A
Country	US
Kind code	B2
Filing date	May 2, 2016
Priority date	Apr 30, 2015
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

Disclosed are foldable bed frames, and oblique supports and connecting mechanisms for foldable bed frames. A foldable bed frame includes first and second sub-frames, and first and second side leg assemblies. The first and second sub-frames, each having top and bottom surfaces, are pivotally connected to each other. The first and second side leg assemblies are pivotally connected to the sub-frames and positioned within the space between the top and bottom surfaces of the sub-frames when folded. In some cases, the foldable bed frame includes a middle leg assembly, oblique supports, connecting pieces, and/or support connecting mechanisms.

First claim

What is claimed is:

1. A foldable bed frame comprising:
first and second sub-frames pivotally connected to each other at proximal sides thereof, each sub-frame having a top surface and a bottom surface; and
first and second side leg assemblies corresponding to the first and second sub-frames, wherein:
each of the first and second leg assemblies has a width less than a thickness of the corresponding sub-frame defined by a distance between the top and bottom surfaces of the sub-frame;
for each sub-frame, the side leg assembly is disposed at a distal side of the sub-frame, pivotally connected to the sub-frame, confined within a space between the top surface and the bottom surface of the sub-frame when folded, and supports the sub-frame when unfolded; and
an overall thickness of the bed frame when folded is substantially the same as a sum of the thicknesses of the first and second sub-frames.

2. A foldable bed frame comprising:
first and second sub-frames pivotally connected to each other at proximal sides thereof, each sub-frame having a top surface and a bottom surface;
first and second side leg assemblies corresponding to the first and second sub-frames, wherein for each sub-frame, the side leg assembly is disposed at a distal side of the sub-frame, pivotally connected to the sub-frame, positioned within a space between the top surface and the bottom surface of the sub-frame when folded, and supports the sub-frame when unfolded; and
a plurality of leg connecting pieces for pivotally connecting the side leg assemblies to the sub-frames,
wherein each sub-frame comprises a peripheral frame having left and right longitudinal peripheral bars, and left and right interior longitudinal bars disposed within the peripheral frame and substantially parallel to the left and right longitudinal peripheral bars, respectively, and
wherein each respective leg connecting piece is disposed between corresponding longitudinal peripheral and interior bars, pivotally connected to the corresponding longitudinal peripheral and interior bars, and fixedly connected to a corresponding side leg assembly.

3. The foldable bed frame of claim 2 , wherein the leg connecting piece comprises a protrusion disposed in a leg of the side leg assembly.

4. The foldable bed frame of claim 2 , the foldable bed frame further comprising:
a plurality of leg limiting pieces, each corresponding to a leg connecting piece and rotating along with the corresponding leg connecting piece.

5. The foldable bed frame of claim 2 , the foldable bed frame further comprising:
a plurality of oblique supports, each having a first end connected to a corresponding sub-frame, and a second end connected to a corresponding side leg assembly.

6. The foldable bed frame of claim 5 , wherein corresponding to each of the first and second sub-frames, the side leg assembly comprises:
a left leg pivotally connected to a left side of the sub-frame;
a right leg pivotally connected to a right side of the sub-frame; and
a leg lateral bar connecting the left and right legs;
wherein the first end of a corresponding oblique support is connected to the left leg, the right leg or the lateral bar of the side leg assembly, and the second end of the corresponding oblique support is connected to a frame lateral bar of the sub-frame.

7. The foldable bed frame of claim 6 , wherein the frame lateral bar is a peripheral lateral bar disposed at the proximal side of the sub-frame.

8. The foldable bed frame of claim 6 , wherein the frame lateral bar is an interior lateral bar of the sub-frame.

9. The foldable bed frame of claim 6 , wherein each of the first and second ends of an oblique support is formed with an assembly hole for coupling with the sub-frame and the side leg assembly.

10. The foldable bed frame of claim 6 , wherein the first or second end of an oblique support is formed with an open slot for releasably or adjustably coupling with the sub-frame or the side leg assembly.

11. The foldable bed frame of claim 6 , wherein corresponding to an oblique support, the side leg assembly further comprises a first connecting piece fixedly disposed at the left leg, the right leg or the leg lateral bar, wherein the first connecting piece is formed with an assembly hole or an opening slot for coupling with the first end of the oblique support.

12. The foldable bed frame of claim 6 , wherein corresponding to an oblique support, the sub-frame further comprises a second connecting piece fixedly disposed at the frame lateral bar, wherein the second connecting piece is formed with an assembly hole or an opening slot for coupling with the second end of the oblique support.

13. The foldable bed frame of claim 6 , wherein:
the first end of an oblique support in the plurality of oblique supports is fixedly or pivotally connected to the leg lateral bar of the side leg assembly; and
the second end of the oblique support is releasably locked with the frame lateral bar of the sub-frame.

14. The foldable bed frame of claim 13 , wherein the second end of the oblique support is releasably locked with the sub-frame by one of the following:
(i) the sub-frame is formed with an assembly hole, and the second end of the oblique support is formed with an opening slot corresponding to the assembly hole of the sub-frame, wherein the assembly hole of the sub-frame and the opening slot of the oblique support are coupled to each other by a fastener;
(ii) the sub-frame includes a connecting piece corresponding to the second end of the oblique support and formed with an assembly hole, and the second end of the oblique support is formed with an opening slot, wherein the assembly hole of the connecting piece and the opening slot of the oblique support are coupled to each other by a fastener; and
(iii) the sub-frame includes a connecting piece corresponding to the second end of the oblique support and formed with an opening slot, and the second end of the oblique support is formed with an assembly hole, wherein the opening slot of the connecting piece and the assembly hole of the oblique support are coupled to each other by a fastener.

15. The foldable bed frame of claim 14 , wherein the opening slot of the oblique support or the connecting piece has a “U” shape or a “C” shape.

16. The foldable bed frame of claim 6 , wherein an oblique support in the plurality of oblique supports comprises:
an inner tube having a first restriction hole;
an outer tube movably coupled to the inner tube and having a second restriction hole corresponding to the first restriction hole of the inner tube;
a locking mechanism comprising a positioning piece configured to be inserted into the first and second restriction holes, thereby restricting the inner and outer tubes from moving with respect to each other; and
an unlocking mechanism disposed at the outer tube and configured to release the positioning piece from one or more of the first and second restriction holes, thereby allowing the inner and outer tunes to move with respect to each other.

17. The foldable bed frame of claim 16 , wherein:
the locking mechanism comprises an elastic member disposed inside of the inner tube, and a protrusion disposed at or formed with the elastic member, the protrusion serving as the positioning piece and configured to be selectively protruded out of the first and second restriction holes; and
the unlocking mechanism comprises a sliding block and a push button disposed at the sliding block, the push button comprising a pillar corresponding to the protrusion of the locking mechanism.

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Assignees

• Inno Sports Co Ltd

Inventors

• Choi Kwanjun

Classifications

• A47C19/024

  Legs · CPC title

• A47C19/122 Primary

  foldable head to foot only · CPC title

• A47C19/025

  Direct mattress support frames, Cross-bars · CPC title