Foldable supporting frames

Patent metadata

Field	Value
Publication number	US-10123629-B2
Application number	US-201615144575-A
Country	US
Kind code	B2
Filing date	May 2, 2016
Priority date	Apr 30, 2015
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A foldable supporting frame includes first and second frame units, each with an upper frame, a lower frame, and supports pivotally connected to the upper and lower frames and supporting the upper frame when the foldable supporting frame is unfolded. The foldable supporting frame also includes upper links for pivotally connecting the upper frames of the first and second units and lower links for pivotally connecting the lower frames of the first and second units. Upper and lower links are separated from each other, reducing the overall weight and facilitating smooth folding and unfolding of the supporting frame.

First claim

What is claimed is:

1. A foldable supporting frame, comprising:
first and second frame units, each comprising:
an upper frame having an upper proximal end at each of left and right sides of the foldable supporting frame;
a lower frame disposed below the upper frame when the foldable bed frame is unfolded, the lower frame having a lower proximal end at each of the left and right sides of the foldable supporting frame; and
a plurality of supports pivotally connected to the upper and lower frames and supporting the upper frame when the foldable supporting frame is unfolded; and

a plurality of links comprising an upper link and a lower link at each of the left and right sides of the foldable supporting frame, and pivotally connecting the first and second frame units, wherein:
the upper link pivotally connected to the upper proximal ends of the first and second frame units; and
a lower link separated from the upper link and pivotally connected to the lower proximal ends of the first and second frame units, wherein the lower link comprises:
a first lower piece having a lower segment and an upper segment, wherein the lower segment is pivotally connected to the lower proximal end of the first frame unit at a first lower pivot point of the lower segment, and pivotally connected to the lower proximal end of the second frame unit at a second lower pivot point of the lower segment; and
a second lower piece having a first end pivotally connected to the upper segment of the first lower piece and a second end pivotally connected to a support adjacent the lower proximal end of the first or second frame unit.

2. The foldable supporting frame 1 , wherein the upper link comprises:
a first upper segment elongated in a longitudinal direction of the foldable supporting frame, pivotally connected to the upper proximal end of the first frame unit at a first upper pivot point, and pivotally connected to the upper proximal end of the second frame unit at a second upper pivot point; and
a second upper segment substantially perpendicular to the first upper segment, disposed below the upper proximal ends of the first and second frame units when the foldable supporting frame is unfolded, and supports the upper proximal ends of the first and second frame units.

3. The foldable supporting frame of claim 2 , wherein a distance between the first upper pivot and the second upper pivot is longer than a distance between the first lower pivot and the second lower pivot.

4. The foldable supporting frame of claim 1 , wherein the upper frame comprises an upper peripheral frame made of a bent bar, and the lower frame comprises a lower peripheral frame made of a bent bar.

5. The foldable supporting frame of claim 1 , wherein:
the upper frame comprises an upper peripheral frame and at least one upper interior bar; and
the lower frame comprises a lower peripheral frame and at least one lower interior bar.

6. The foldable supporting frame of claim 1 , wherein:
the upper frame is formed with a hole adjacent the upper proximal end for connecting with a support;
the lower frame is formed with a hole adjacent the lower proximal end for connecting with the support,
wherein the hole of the lower frame is positioned closer to a central line than the hole of the upper frame.

7. The foldable supporting frame of claim 1 , wherein the lower and upper segments of the first lower piece collectively form a “Z” shape.

8. The foldable supporting frame of claim 1 , wherein the first lower piece is bent such that the lower and upper segments of the first lower piece form a step.

9. The foldable supporting frame of claim 1 , wherein a support in the plurality of supports comprises a first segment and a second segment collectively forming a substantial “L” shape.

10. The foldable supporting frame of claim 9 , wherein the support further comprises one or more third segments extended and bent from an edge of the first segment, wherein the second segment and the one or more third segments are located on the same side of the first segment, wherein the one or more third segments abut the upper and lower frames when the foldable supporting frame is unfolded.

11. The foldable supporting frame of claim 9 , wherein at least one support has the first segment pivotally connected to the upper frame, and the second segment pivotally connected to the lower frame.

12. The foldable supporting frame of claim 9 , wherein at least one support has the first segment pivotally connected to the lower frame, and the second segment pivotally connected to the upper frame.

13. The foldable supporting frame of claim 9 , wherein:
each support disposed adjacent the proximal ends has the first segment pivotally connected to the upper frame, and the second segment pivotally connected to the lower frame; and
each support disposed away from the proximal ends has the first segment pivotally connected to the lower frame, and the second segment pivotally connected to the upper frame.

14. The foldable supporting frame of claim 9 , wherein the first segment of a support adjacent the proximal ends is formed with a raised or recessed terrace for connecting with the lower link.

15. The foldable supporting frame of claim 1 , wherein the upper frame of each of the first and second frame units further comprises an upper interior longitudinal bar having an upper interior proximal end between left and right sides of the foldable supporting frame.

16. The foldable supporting frame of claim 15 , wherein the plurality of links further comprises an upper interior link pivotally connected to the upper interior proximal ends of the first and second frame units.

17. The foldable supporting frame of claim 1 , wherein:
the upper frame comprises a plurality of longitudinal upper bars;
the lower frame comprises a plurality of longitudinal lower bars corresponding to the plurality of longitudinal upper bars,
wherein each support in the plurality of supports is disposed between a longitudinal upper bar and a corresponding longitudinal lower bar and pivotally connected to the longitudinal upper and lower bars.

Assignees

• Inno Sports Co Ltd

Inventors

• Choi Kwanjun

Classifications

• A47C19/122 Primary

  foldable head to foot only · CPC title

• A47C19/025

  Direct mattress support frames, Cross-bars · CPC title