US20220265050A1 - Seat mesh fabric easily and securely installed by insertion - Google Patents

Seat mesh fabric easily and securely installed by insertion Download PDF

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Publication number
US20220265050A1
US20220265050A1 US17/625,481 US202017625481A US2022265050A1 US 20220265050 A1 US20220265050 A1 US 20220265050A1 US 202017625481 A US202017625481 A US 202017625481A US 2022265050 A1 US2022265050 A1 US 2022265050A1
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United States
Prior art keywords
seat
mesh
reinforcement
embedded
connecting rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US17/625,481
Inventor
Qing Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dxracer Technology Wuxi Co Ltd
Original Assignee
Dxracer Technology Wuxi Co Ltd
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Publication date
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Assigned to DXRACER TECHNOLOGY WUXI CO., LTD. reassignment DXRACER TECHNOLOGY WUXI CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WU, QING
Publication of US20220265050A1 publication Critical patent/US20220265050A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/023—Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/04—Clamps for attaching flat elastic strips or flat meandering springs to frames
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes

Definitions

  • the present invention belongs to the technical field of seat mesh, in particular to an embedded anti-falling and easy-to-install seat mesh.
  • the mesh stretching for E-sports chairs on the current market is mostly performed by fixing mesh on plastic frame with reinforced steel nails by nail gun, which is prone to damage the performance of mesh itself, making mesh fall off chairs after a period of use with short service life.
  • the quantity of gun nails used to fix mesh on a chair is not expressly specified, which completely depends on the experience of workers and repeated adjustments, resulting in waste of materials and time and non-standard mesh stretching technique.
  • the present invention provides an embedded anti-falling and easy-to-install seat mesh, which is easy to install and free from falling off.
  • an embedded anti-falling and easy-to-install seat mesh comprising a seat body, wherein a seat reinforcement is fixed to the inner wall of the seat body by welding.
  • a mesh body is laid on the side of the seat body.
  • a mesh connecting rod is fixed at one end of the mesh body.
  • the mesh connecting rod rounds the side of the seat body and embedded into the inner side of the seat reinforcement.
  • a through hole is opened respectively in the seat reinforcement and the outer surface of the seat body.
  • a fixing bolt is arranged to penetrate through the holes, and a limit assembly is arranged between the seat reinforcement and the seat body.
  • the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein the limit assembly comprises a limit piece and a retracting groove.
  • the retracting groove is arranged on the outer surface of the seat body.
  • the limit piece is integrally arranged on the outer wall of the seat reinforcement, and embedded into the inside of the retracting groove.
  • the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein an auxiliary rubber strip is fixed on the surface of the mesh body at the side close to the fixing bolt by injection molding, and the auxiliary rubber strip is a strip component.
  • the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein the mesh connecting rod and the seat reinforcement are both solid cylindrical components. Rubber sheaths are sleeved on the outer wall of the mesh connecting rod and the seat reinforcement by injection molding.
  • the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein the limit piece is an isosceles-trapezoidal rubber component, and the retracting groove is embedded with the limit piece.
  • the present invention has the following beneficial effects: During the installation of the mesh, the fixing bolt is removed from the seat reinforcement, and the mesh connecting rod rounds the side of the seat body and embedded into the inner side of the seat reinforcement, i.e. the mesh body is preliminarily fixed. Then, the mesh body is completely fixed on the seat body by turning the fixing bolt on the seat reinforcement.
  • the embedded fixing structure of the mesh can effectively prevent the mesh body from falling and facilitate the installation of the mesh body.
  • FIG. 1 is a structural schematic diagram of the present invention.
  • FIG. 2 is a side view of the structure in the present invention.
  • FIG. 3 is a schematic diagram of the limit structure in the present invention.
  • An embedded anti-falling and easy-to-install seat mesh wherein it comprises the seat body 1 , and the seat reinforcement 2 is fixed to the inner wall of the seat body 1 by welding.
  • the mesh body 3 is laid on the side of the seat body 1 .
  • the mesh connecting rod 31 is fixed at one end of the mesh body 3 .
  • the mesh connecting rod 31 rounds the side of the seat body 1 and embedded into the inner side of the seat reinforcement 2 .
  • the through hole 21 is opened respectively in the outer surface of the seat reinforcement 2 and the seat body 1 .
  • the fixing bolt 4 is arranged to penetrate through the through holes 21 , and the limit assembly is arranged between the seat reinforcement 2 and the seat body 1 .
  • the mesh body 3 can be further locked by the fixing bolt 4 to improve the stability of the mesh body 3 and prevent the mesh body 3 from falling.
  • the limit assembly comprises the limit piece 22 and the retracting groove 11 .
  • the retracting groove 11 is opened on the outer surface of the seat body 1 .
  • the limit piece 22 is integrally arranged on the outer wall of the seat reinforcement 2 , and embedded into the inside of the retracting groove 11 .
  • the limit assembly improves the stability of the mesh body 3 when fixing it.
  • the auxiliary rubber strip 32 is fixed on the surface of the mesh body 3 at the side close to the fixing bolt 4 by injection molding, and the auxiliary rubber strip 32 is a strip component.
  • the auxiliary rubber strip 32 improves the wear resistance of side surfaces of the mesh body 3 , and prevents wire rods on the side of the mesh body 3 from fracture.
  • the mesh connecting rod 31 and the seat reinforcement 2 are both solid cylindrical components.
  • the rubber sheaths 5 are sleeved on the outer wall of the mesh connecting rod 31 and the seat reinforcement 2 by injection molding. In this embodiment, the rubber sheaths 5 protect the mesh connecting rod 31 and the seat reinforcement 2 to prevent the mesh connecting rod 31 and the seat reinforcement 2 from being deformed.
  • the limit piece 22 is an isosceles-trapezoidal rubber component.
  • the retracting groove 11 is embedded with the limit piece 22 .
  • the limit piece 22 limits the mesh body 3 to prevent it from being worn when moving back and forth.
  • the working principle and operating process of the present invention During the installation of the mesh, the fixing bolt 4 is removed from the seat reinforcement 2 , and the mesh connecting rod 31 rounds the side of the seat body 1 and embedded into the inner side of the seat reinforcement 2 , i.e. the mesh body 3 is preliminarily fixed. Then, the mesh body 3 is completely fixed on the seat body 1 by turning the fixing bolt 4 on the seat reinforcement 2 .
  • the fixing bolt 4 remains connected to the seat reinforcement 2 and the seat body 1 through threads, enabling the mesh body 3 to be fixed on the seat body 1 .
  • the limit piece 22 is embedded into the inside of the retracting groove 11 , and limits the mesh body 3 and the auxiliary rubber strip 32 to prevent the mesh body 3 from excessive wear.
  • the rubber sheath 5 can prevent the seat reinforcement 2 and the mesh connecting rod 31 from being deformed due to excessive extrusion pressure caused by collision between the seat reinforcement 2 and the mesh connecting rod 31 .
  • the embedded fixing structure of the mesh can effectively prevent the mesh body 3 from falling and facilitate the installation of the mesh body 3 .

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Revetment (AREA)
  • Woven Fabrics (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention belongs to the technical field of seat mesh, in particular to an embedded anti-falling and easy-to-install seat mesh, wherein it comprises a seat body, and a seat reinforcement is fixed to the inner wall of the seat body by welding. A mesh body is laid on the side of the seat body. A mesh connecting rod is fixed at one end of the mesh body. The mesh connecting rod rounds the side of the seat body and embedded into the inner side of the seat reinforcement. During the installation of the mesh, the fixing bolt is removed from the seat reinforcement, and the mesh connecting rod rounds the side of the seat body and embedded into the inner side of the seat reinforcement, i.e. the mesh body is preliminarily fixed. Then, the mesh body is completely fixed on the seat body by turning the fixing bolt on the seat reinforcement. The embedded fixing structure of the mesh can effectively prevent the mesh body from falling and facilitate the installation of the mesh body.

Description

    FIELD OF THE INVENTION
  • The present invention belongs to the technical field of seat mesh, in particular to an embedded anti-falling and easy-to-install seat mesh.
    • BACKGROUND OF THE INVENTION
  • The mesh stretching for E-sports chairs on the current market is mostly performed by fixing mesh on plastic frame with reinforced steel nails by nail gun, which is prone to damage the performance of mesh itself, making mesh fall off chairs after a period of use with short service life. In addition, the quantity of gun nails used to fix mesh on a chair is not expressly specified, which completely depends on the experience of workers and repeated adjustments, resulting in waste of materials and time and non-standard mesh stretching technique. To solve the problems in the current process of mesh fixation, it is necessary to improve and optimize the fixing structure of mesh.
    • SUMMARY OF THE INVENTION
  • In order to solve the above-described problems in the prior art, the present invention provides an embedded anti-falling and easy-to-install seat mesh, which is easy to install and free from falling off.
  • In order to achieve the above purpose, the present invention provides the following technical solutions: an embedded anti-falling and easy-to-install seat mesh comprising a seat body, wherein a seat reinforcement is fixed to the inner wall of the seat body by welding. A mesh body is laid on the side of the seat body. A mesh connecting rod is fixed at one end of the mesh body. The mesh connecting rod rounds the side of the seat body and embedded into the inner side of the seat reinforcement. A through hole is opened respectively in the seat reinforcement and the outer surface of the seat body. A fixing bolt is arranged to penetrate through the holes, and a limit assembly is arranged between the seat reinforcement and the seat body.
  • As the preferred technical scheme, the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein the limit assembly comprises a limit piece and a retracting groove. The retracting groove is arranged on the outer surface of the seat body. The limit piece is integrally arranged on the outer wall of the seat reinforcement, and embedded into the inside of the retracting groove.
  • As the preferred technical scheme, the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein an auxiliary rubber strip is fixed on the surface of the mesh body at the side close to the fixing bolt by injection molding, and the auxiliary rubber strip is a strip component.
  • As the preferred technical scheme, the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein the mesh connecting rod and the seat reinforcement are both solid cylindrical components. Rubber sheaths are sleeved on the outer wall of the mesh connecting rod and the seat reinforcement by injection molding.
  • As the preferred technical scheme, the present invention provides an embedded anti-falling and easy-to-install seat mesh, wherein the limit piece is an isosceles-trapezoidal rubber component, and the retracting groove is embedded with the limit piece.
  • Compared with the prior art, the present invention has the following beneficial effects: During the installation of the mesh, the fixing bolt is removed from the seat reinforcement, and the mesh connecting rod rounds the side of the seat body and embedded into the inner side of the seat reinforcement, i.e. the mesh body is preliminarily fixed. Then, the mesh body is completely fixed on the seat body by turning the fixing bolt on the seat reinforcement. The embedded fixing structure of the mesh can effectively prevent the mesh body from falling and facilitate the installation of the mesh body.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The accompanying drawings are included to provide a further understanding of the present invention, and constitutes part of this specification, together with the embodiment of the present invention serves to explain the invention, and is not construed as limited to the present invention. In the drawings:
  • FIG. 1 is a structural schematic diagram of the present invention.
  • FIG. 2 is a side view of the structure in the present invention.
  • FIG. 3 is a schematic diagram of the limit structure in the present invention.
    •
  • Description of the reference numerals: 1. Seat body; 11. Retracting groove; 2. Seat reinforcement; 21. Through hole; 22. Limit piece; 3. Mesh body; 31. Mesh connecting rod; 32. Auxiliary rubber strip; 4. Fixing bolt; 5. Rubber sheath.
    • DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
  • The technical solutions provided in the embodiment of the present invention will be described clearly and completely below in accordance with the drawings in the embodiment of the present invention. Apparently, the described embodiment is merely a part rather than all of the embodiments of the present invention. All other embodiments made by those of ordinary skill in the art based on the embodiment of the present invention without creative work shall fall within the protection scope of the present invention.
    • Embodiment
  • As shown in FIGS. 1-3, the present invention provides the following technical solutions: An embedded anti-falling and easy-to-install seat mesh, wherein it comprises the seat body 1, and the seat reinforcement 2 is fixed to the inner wall of the seat body 1 by welding. The mesh body 3 is laid on the side of the seat body 1. The mesh connecting rod 31 is fixed at one end of the mesh body 3. The mesh connecting rod 31 rounds the side of the seat body 1 and embedded into the inner side of the seat reinforcement 2. The through hole 21 is opened respectively in the outer surface of the seat reinforcement 2 and the seat body 1. The fixing bolt 4 is arranged to penetrate through the through holes 21, and the limit assembly is arranged between the seat reinforcement 2 and the seat body 1. In this embodiment, the mesh body 3 can be further locked by the fixing bolt 4 to improve the stability of the mesh body 3 and prevent the mesh body 3 from falling.
  • Specifically, the limit assembly comprises the limit piece 22 and the retracting groove 11. The retracting groove 11 is opened on the outer surface of the seat body 1. The limit piece 22 is integrally arranged on the outer wall of the seat reinforcement 2, and embedded into the inside of the retracting groove 11. In this embodiment, the limit assembly improves the stability of the mesh body 3 when fixing it.
  • Specifically, the auxiliary rubber strip 32 is fixed on the surface of the mesh body 3 at the side close to the fixing bolt 4 by injection molding, and the auxiliary rubber strip 32 is a strip component. In this embodiment, the auxiliary rubber strip 32 improves the wear resistance of side surfaces of the mesh body 3, and prevents wire rods on the side of the mesh body 3 from fracture.
  • Specifically, the mesh connecting rod 31 and the seat reinforcement 2 are both solid cylindrical components. The rubber sheaths 5 are sleeved on the outer wall of the mesh connecting rod 31 and the seat reinforcement 2 by injection molding. In this embodiment, the rubber sheaths 5 protect the mesh connecting rod 31 and the seat reinforcement 2 to prevent the mesh connecting rod 31 and the seat reinforcement 2 from being deformed.
  • Specifically, the limit piece 22 is an isosceles-trapezoidal rubber component. The retracting groove 11 is embedded with the limit piece 22. In this embodiment, the limit piece 22 limits the mesh body 3 to prevent it from being worn when moving back and forth.
  • The working principle and operating process of the present invention: During the installation of the mesh, the fixing bolt 4 is removed from the seat reinforcement 2, and the mesh connecting rod 31 rounds the side of the seat body 1 and embedded into the inner side of the seat reinforcement 2, i.e. the mesh body 3 is preliminarily fixed. Then, the mesh body 3 is completely fixed on the seat body 1 by turning the fixing bolt 4 on the seat reinforcement 2. The fixing bolt 4 remains connected to the seat reinforcement 2 and the seat body 1 through threads, enabling the mesh body 3 to be fixed on the seat body 1. The limit piece 22 is embedded into the inside of the retracting groove 11, and limits the mesh body 3 and the auxiliary rubber strip 32 to prevent the mesh body 3 from excessive wear. The rubber sheath 5 can prevent the seat reinforcement 2 and the mesh connecting rod 31 from being deformed due to excessive extrusion pressure caused by collision between the seat reinforcement 2 and the mesh connecting rod 31. The embedded fixing structure of the mesh can effectively prevent the mesh body 3 from falling and facilitate the installation of the mesh body 3.
  • Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiment, those skilled in the art can still modify the technical solutions described in the foregoing embodiment, or substitute some of the technical features of the embodiment. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention should fall within the protection scope of the present invention.

Claims (5)

What is claimed is:
1. An embedded anti-falling and easy-to-install seat mesh, wherein it comprises a seat body (1), and a seat reinforcement (2) is fixed to the inner wall of the seat body (1) by welding. A mesh body (3) is laid on the side of the seat body (1). A mesh connecting rod (31) is fixed at one end of the mesh body (3). The mesh connecting rod (31) rounds the side of the seat body (1) and embedded into the inner side of the seat reinforcement (2). A through hole (21) is opened respectively in the seat reinforcement (2) and the outer surface of the seat body (1). A fixing bolt (4) is arranged to penetrate through the holes (21), and a limit assembly is arranged between the seat reinforcement (2) and the seat body (1).
2. The embedded anti-falling and easy-to-install seat mesh according to claim 1, wherein the limit assembly comprises a limit piece (22) and a retracting groove (11). The retracting groove (11) is arranged on the outer surface of the seat body (1). The limit piece (22) is integrally arranged on the outer wall of the seat reinforcement (2), and embedded into the inside of the retracting groove (11).
3. The embedded anti-falling and easy-to-install seat mesh according to claim 1, wherein an auxiliary rubber strip (32) is fixed on the surface of the mesh body (3) at the side close to the fixing bolt (4) by injection molding, and the auxiliary rubber strip (32) is a strip component.
4. The embedded anti-falling and easy-to-install seat mesh according to claim 1, wherein the mesh connecting rod (31) and the seat reinforcement (2) are both solid cylindrical components. Rubber sheaths (5) are sleeved on the outer wall of the mesh connecting rod (31) and the seat reinforcement (2) by injection molding.
5. The embedded anti-falling and easy-to-install seat mesh according to claim 1, wherein the limit piece (22) is an isosceles-trapezoidal rubber component, and the retracting groove (11) is embedded with the limit piece (22).
US17/625,481 2019-12-11 2020-07-23 Seat mesh fabric easily and securely installed by insertion Abandoned US20220265050A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201922216665.7U CN212165377U (en) 2019-12-11 2019-12-11 Prevent to drop and embedded seat screen cloth of installation of being convenient for
CN201922216665.7 2019-12-11
PCT/CN2020/103777 WO2021114677A1 (en) 2019-12-11 2020-07-23 Seat mesh fabric easily and securely installed by insertion

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US20220265050A1 true US20220265050A1 (en) 2022-08-25

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US17/625,481 Abandoned US20220265050A1 (en) 2019-12-11 2020-07-23 Seat mesh fabric easily and securely installed by insertion

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US (1) US20220265050A1 (en)
CN (1) CN212165377U (en)
DE (1) DE212020000646U1 (en)
WO (1) WO2021114677A1 (en)

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US2839126A (en) * 1953-12-14 1958-06-17 Ralph A O'neill Attachment of webbing strip or the like, and novel frame support and attaching means
US3438099A (en) * 1967-10-13 1969-04-15 Harold Green Fastener connections
US3720568A (en) * 1971-03-22 1973-03-13 D Rowland Seating and sub-assembly for seats and backs
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US4456301A (en) * 1981-08-17 1984-06-26 Homecrest Industries Incorporated Furniture construction
US4558904A (en) * 1983-03-23 1985-12-17 Schultz Moses R Hoop chair
US4872724A (en) * 1987-11-24 1989-10-10 Ecia-Equipements Et Composants Pour L'industrie Automobile Fixing device for a covering, especially a covering of a seat
US5338091A (en) * 1991-11-07 1994-08-16 Miller Elmo E Welt lock furniture construction
US6293624B1 (en) * 2000-04-18 2001-09-25 Robert A. Gaylord Sling chair
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US3438099A (en) * 1967-10-13 1969-04-15 Harold Green Fastener connections
US3720568A (en) * 1971-03-22 1973-03-13 D Rowland Seating and sub-assembly for seats and backs
US4456301A (en) * 1981-08-17 1984-06-26 Homecrest Industries Incorporated Furniture construction
DE3211117A1 (en) * 1982-03-26 1983-10-06 Oke Heyde & Tillner V D Arrangement for attaching upholstery belts
US4558904A (en) * 1983-03-23 1985-12-17 Schultz Moses R Hoop chair
US4872724A (en) * 1987-11-24 1989-10-10 Ecia-Equipements Et Composants Pour L'industrie Automobile Fixing device for a covering, especially a covering of a seat
US5338091A (en) * 1991-11-07 1994-08-16 Miller Elmo E Welt lock furniture construction
US6375269B1 (en) * 1997-11-25 2002-04-23 Ts Tech Co., Ltd. Seat having seating face made of sheet resilient material
US6370714B1 (en) * 1998-08-28 2002-04-16 Rössle & Wanner GmbH Lounge chair
US6293624B1 (en) * 2000-04-18 2001-09-25 Robert A. Gaylord Sling chair
US20020105220A1 (en) * 2001-02-08 2002-08-08 Dewey Hodgdon Chair fabric suspension arrangement
US20050200189A1 (en) * 2004-03-12 2005-09-15 Richard Schultz Interior weld and improved sling
US20080122284A1 (en) * 2006-08-10 2008-05-29 Jui Hung Yang Supporting structure for a chair
US20090302662A1 (en) * 2008-06-04 2009-12-10 Groelsma John C Suspension seating
US20120139323A1 (en) * 2010-12-07 2012-06-07 Chuen-Jong Tseng Backrest Device For A Chair
US20160174718A1 (en) * 2014-12-19 2016-06-23 Emu Group S.P.A. Support equipment for supporting a person at rest having a rigid supporting structure with supporting elements
US20190335915A1 (en) * 2016-09-08 2019-11-07 Agio International Co., Ltd. Sling chair
US9980569B1 (en) * 2017-01-13 2018-05-29 Xi Chen Axial and compressive load support assembly for a seat
US20200383481A1 (en) * 2019-06-04 2020-12-10 Yeti Coolers, Llc Portable Chair
US20220287464A1 (en) * 2019-12-12 2022-09-15 Dxracer Technology Wuxi Co., Ltd. Spring-type iron frame mesh chair

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DE212020000646U1 (en) 2022-01-24
CN212165377U (en) 2020-12-18

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