IP Library Granted Patent US 12,551,022
Granted Patent B2
US 12,551,022 · App. 18/383,906 · Granted Feb 17, 2026

Folding sofa

Inventor: Peng Wu (Shanghai, CN)
Assignee: Shanghai Wudi Home Furnishings Co Ltd
A47C17/162A47C17/161A47C17/16
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Quick Facts
Patent No.
US 12,551,022
App. No.
18/383,906
Granted
Feb 17, 2026
Kind
B2
Abstract

A folding sofa is provided. The folding sofa includes multiple folding parts, where the folding parts include seat cushion frames, backrest frames, rotating locking elements, and support elements; the seat cushion frame and the backrest frame are rotationally connected, and are locked by the rotating locking element; the support element is provided inside the seat cushion frame and the backrest frame; multiple first seat cushion support legs are detachably provided below the first seat cushion frame, and multiple last seat cushion support legs are detachably provided below the last seat cushion frame; multiple common seat cushion support legs are detachably provided between each two adjacent seat cushion frames; and the backrest frame is provided with multiple backrest support legs for supporting when the folding sofa is used as a bed.

Claims (19)

1 . A folding sofa, comprising multiple folding parts, wherein

the folding parts comprise seat cushion frames, backrest frames, rotating locking elements, and support elements;

the seat cushion frames and the backrest frames are rotationally connected, and are locked by the rotating locking elements;

the support elements are provided inside the seat cushion frames and the backrest frames;

multiple first seat cushion support legs are detachably provided below a first seat cushion frame, and multiple last seat cushion support legs are detachably provided below a last seat cushion frame;

multiple common seat cushion support legs are detachably provided between two adjacent seat cushion frames; and

the backrest frames are provided with multiple backrest support legs for supporting when the folding sofa is configured as a bed.

2 . The folding sofa according to claim 1 , wherein the support elements comprise multiple elastic elements; and two ends of each of the elastic elements are fixed inside the seat cushion frames and the backrest frames.

3 . The folding sofa according to claim 2 , wherein the folding parts further comprise a soft elastic element; and

the soft elastic element is provided on the elastic elements inside the seat cushion frames and the backrest frames.

4 . The folding sofa according to claim 1 , wherein the folding parts are wrapped in a flexible covering.

5 . The folding sofa according to claim 1 , wherein the rotating locking elements are provided between the backrest frames and the backrest support legs; and

the backrest support legs are rotationally connected to the backrest frames, and the backrest frames and the backrest support legs are connected and locked by the rotating locking elements.

6 . The folding sofa according to claim 1 , wherein the seat cushion frames and the backrest frames are made of iron or steel tubes.

7 . The folding sofa according to claim 4 , wherein the flexible covering is provided with a zipper for an easy placement of the folding parts.

8 . The folding sofa according to claim 7 , wherein the zipper is located below the folding parts.

9 . The folding sofa according to claim 1 , wherein the folding sofa further comprises multiple fixing elements; and

the first seat cushion support legs, the common seat cushion support legs, and the last seat cushion support legs are detachably provided on the seat cushion frames by the fixing elements.

10 . The folding sofa according to claim 1 , wherein the folding sofa comprises a futon sofa, a tatami sofa, a chaise sectional sofa, or a cube sofa.

Assignments (3)
CHANGE OF NAME Recorded Nov 5, 2025
From: WUDI INDUSTRIAL (SHANGHAI) CO., LTD.
To: SHANGHAI WUDI HOME FURNISHINGS CO LTD
Reel/Frame 073448/0721 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2023
From: WU, PENG
To: SHANGHAI COASLIN TECHNOLOGY CO., LIMITED
Reel/Frame 065360/0369 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2023
From: SHANGHAI COASLIN TECHNOLOGY CO., LIMITED
To: WUDI INDUSTRIAL (SHANGHAI) CO., LTD.
Reel/Frame 065360/0398 →
Priority Claims (1)
CN 202321877421.3 · Jul 17, 2023 · national
Continuity (1)
Related Publication 20250024954A1 · Jan 23, 2025
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