US20070170756A1 - Chair seat and back structure - Google Patents

Chair seat and back structure Download PDF

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Publication number
US20070170756A1
US20070170756A1 US11/338,790 US33879006A US2007170756A1 US 20070170756 A1 US20070170756 A1 US 20070170756A1 US 33879006 A US33879006 A US 33879006A US 2007170756 A1 US2007170756 A1 US 2007170756A1
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US
United States
Prior art keywords
loop
part
shaped
shaped part
covering
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
US11/338,790
Inventor
Ming-Shiang Kang
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.)
Russell International Corp
Original Assignee
Russell International Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Russell International Corp filed Critical Russell International Corp
Priority to US11/338,790 priority Critical patent/US20070170756A1/en
Assigned to RUSSELL INTERNATIONAL CORPORATION reassignment RUSSELL INTERNATIONAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KANG, MING-SHIANG
Publication of US20070170756A1 publication Critical patent/US20070170756A1/en
Application status is Abandoned legal-status Critical

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/02Seat parts
    • A47C7/28Seat parts with tensioned springs, e.g. of flat type
    • A47C7/282Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C31/00Details 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
    • A47C31/02Upholstery attaching means
    • A47C31/023Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like

Abstract

A chair seat and back structure includes a loop-shaped part with a space encompassed by an inner edge thereof, and an elastic covering part; the loop-shaped part has a curvature and a loop-shaped holding groove near to a circumferential edge thereof; the covering part positioned over the loop-shaped part, in tension and with a circumferential edge thereof being passed into the loop-shaped holding groove and secured to the loop-shaped part; therefore, the covering part will be changed in the shape by the sitter's body curvature, and the sitter's body will touch the chair with increased area.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a chair seat and back structure, more particularly one, which makes the chair more comfortable to sit on.
  • 2. Brief Description of the Prior Art
  • In order for allowing people to sit on chairs for a long period of time, chair seats and backs are usually formed with convexities and concavities according to ergonomics.
  • Referring to FIGS. 1 and 2, a currently existing chair seat and back structure includes a board-shaped basic part 41, a foam part 42, and a piece of cloth 43. The board-shaped basic part 41 has a proper curvature, and it can be plastic or alternatively it can be wooden. The foam part 42 is stuck on the board-shaped basic part 41, and the cloth 43 is stuck on the foam part 42 and secured to the board-shaped basic part 41.
  • The chair seat and back structure is found to have the following disadvantages:
  • 1. When a person is seated on the chair, the foam part will be compressed owing to the sitter's body weight, and the sitter's body will feel the board-shaped basic part, which is relatively hard, even if the foam part is somewhat soft and elastic. Consequently, the sitter will have bad blood circulation and feel numbness and pain after having been seated on the chair for a long period of time.
  • 2. The sitter will feel hot and uncomfortable after having been seated on the chair for an extended period of time because air can't travel through the seat and the back.
  • 3. It will take relatively much time and labor to make the board-shaped basic part curve smoothly if the board-shaped basic part is wooden. Furthermore, wooden materials are relatively expensive.
  • SUMMARY OF THE INVENTION
  • It is a main object of the present invention to provide an improvement on a chair seat and back structure to overcome the above-mentioned problems. The seat and back structure of the invention includes a loop-shaped part with a space encompassed by an inner edge, and an elastic covering part. The loop-shaped part has a curvature and a loop-shaped holding groove near to a circumferential edge thereof. The covering part is positioned over the loop-shaped part, in tension and with a circumferential edge thereof being passed into the loop-shaped holding groove and secured to the loop-shaped part. Therefore, the covering part will be changed in the shape by the sitter's body curvature, and the sitter will be comfortably supported on the chair, with his body touching the seat and back structure with increased area.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will be better understood by referring to the accompanying drawings, wherein:
  • FIG. 1 is a lateral sectional view of the currently existing structure,
  • FIG. 2 is a rear perspective view of the currently existing structure,
  • FIG. 3 is a lateral sectional view of the present invention,
  • FIG. 4 is a partially exploded perspective view of the invention,
  • FIG. 5 is a lateral sectional view of the first preferred embodiment in the present invention, and
  • FIG. 6 is a lateral sectional view of the second embodiment.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Referring to FIGS. 3 to 5, a first preferred embodiment of a chair seat and back structure in the present invention includes a loop-shaped part 1, and a covering part 2.
  • The loop-shaped part 1 has a proper curvature and a loop-shaped holding groove 12 near to a circumferential edge thereof, and it is preferably made of plastic by means of injection molding. And, a space 11 is encompassed by an inner edge of the loop-shaped part 1.
  • The covering part 2 is secured over the loop-shaped part 1, and it includes an inner covering sheet 21, a foam part 22, and an outer covering sheet 23, which foam part 22 can be made of foam rubber. The outer covering sheet 23 can be a piece of cloth or alternatively it can be a piece of leather. The foam part 22 is stuck on the inner covering sheet 21, and the outer covering sheet 23 is positioned over the foam part 22.
  • In assembly, first the inner covering sheet 21 is positioned over the loop-shaped part 1, in tension and with a circumferential edge thereof being passed into the loop-shaped holding groove 12 and secured to the loop-shaped part 1 by means of staples, and glue is applied over the inner covering sheet 21. Next, the foam part 22 is stuck on the inner covering sheet 21, and the outer covering sheet 23 is positioned over the foam part 22 and the loop-shaped part 1, in tension and with a circumferential edge thereof being passed into the loop-shaped holding groove 12 and secured to the loop-shaped part 1 by means of staples. Finally, an elongate insert 3 is tightly fitted into the loop-shaped groove 12 of the loop-shaped part 1 to embellish the circumferential edges of both the inner and the outer covering sheets 21 and 23, thus making the chair more pleasant-looking.
  • Therefore, when a person is seated on the chair, a major proportion of his/her bodyweight will be supported by that portion of the covering part 2 that is over the space 11 encompassed by the loop-shaped part 1, which is relatively soft and allows the sitter to comfortably rest on, preventing the sitter from having bad blood circulation and feeling numbness after he/she has been seated on the chair for a long period of time.
  • Referring to FIG. 6, a second preferred embodiment of a chair seat and back structure in the present invention includes a loop-shaped part 1, and a covering part 2′. The covering part 2′ is secured over the loop-shaped part 1, and it includes an inner covering sheet 21′, and an outer covering mesh sheet 22′ positioned over the inner covering sheet 21′. The covering part 2′ is positioned over the loop-shaped part 1, in tension and with circumferential edges of both the inner covering sheet 21′ and the outer covering mesh sheet 22′ being passed into a loop-shaped holding groove 12 of the loop-shaped part 1 and secured to the loop-shaped part 1 by means of staples. And, an elongate insert 3 is tightly fitted into the loop-shaped groove 12. Therefore, when a person is seated on the chair, he/she will be comfortably supported by the covering part 2.
  • From the above description, it can be seen that the chair seat and back structure of the present invention has the following advantages:
  • 1. Because the inner and the outer covering sheets of the covering part are elastic and in tension, and they cover the space encompassed by the loop-shaped part, the covering part will be changed in its curvature by the sitter's body curvature. Consequently, the sitter will be comfortably supported on the chair, with his body touching the seat and back structure with increased area.
  • 2. Because the covering part is positioned over the space encompassed by the loop-shaped part, air can travel through the seat and back structure very easily, preventing the sitter from feeling hot and uncomfortable after he has been seated on the chair for a long period of time.

Claims (4)

1. A chair seat and back structure, comprising
a loop-shaped part with a space encompassed by an inner edge thereof; the loop-shaped part having a curvature and a loop-shaped holding groove near to a circumferential edge thereof; and
a covering part secured over the loop-shaped part; the covering part including:
(a) an inner covering sheet, the inner covering sheet being positioned over the loop-shaped part in tension, and with a circumferential edge thereof being passed into the loop-shaped holding groove and secured to the loop-shaped part;
(b) a foam part stuck on the inner covering sheet; and
(c) an outer covering sheet, the outer covering sheet being positioned over the foam and the loop-shaped part in tension, and with a circumferential edge thereof being passed into the loop-shaped holding groove and secured to the loop-shaped part.
2. The chair seat and back structure as recited in claim 1, wherein an elongate insert is tightly fitted into the loop-shaped groove of the loop-shaped part to cover the circumferential edges of both the inner and the outer covering sheets.
3. A chair seat and back structure, comprising
a loop-shaped part with a space encompassed by an inner edge thereof; the loop-shaped part having a curvature and a loop-shaped holding groove near to a circumferential edge thereof; and
a covering part secured over the loop-shaped part; the covering part including:
(a) an inner covering sheet, the inner covering sheet being positioned over the loop-shaped part, in tension and with a circumferential edge thereof being passed into the loop-shaped holding groove and secured to the loop-shaped part; and
(b) an outer covering mesh sheet, the outer covering mesh sheet being positioned over the loop-shaped part, in tension and with a circumferential edge thereof being passed into the loop-shaped holding groove and secured to the loop-shaped part.
4. The chair seat and back structure as recited in claim 3, wherein an elongate insert is tightly fitted into the loop-shaped groove of the loop-shaped part to cover the circumferential edges of both the inner covering sheet and the outer covering mesh sheet.
US11/338,790 2006-01-25 2006-01-25 Chair seat and back structure Abandoned US20070170756A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/338,790 US20070170756A1 (en) 2006-01-25 2006-01-25 Chair seat and back structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/338,790 US20070170756A1 (en) 2006-01-25 2006-01-25 Chair seat and back structure

Publications (1)

Publication Number Publication Date
US20070170756A1 true US20070170756A1 (en) 2007-07-26

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Family Applications (1)

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US11/338,790 Abandoned US20070170756A1 (en) 2006-01-25 2006-01-25 Chair seat and back structure

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080079307A1 (en) * 2006-09-30 2008-04-03 Tung-Hua Su Chair Backrest
US20110057496A1 (en) * 2009-09-08 2011-03-10 Tsan-Ching Wang Seats for vehicles
US20110181092A1 (en) * 2010-01-25 2011-07-28 Cheng-Hung Lin Seat assembly
US20120025574A1 (en) * 2008-12-12 2012-02-02 Formway Furniture Limited Chair, a support, and components
US20120313419A1 (en) * 2010-02-10 2012-12-13 Okamura Corporation Stretching structure of chair upholstery material
US9913540B2 (en) 2012-09-21 2018-03-13 Steelcase Inc. Chair construction
US10194749B1 (en) 2017-05-23 2019-02-05 Yeti Coolers, Llc Portable chair and methods of forming a portable chair
USD843150S1 (en) 2018-01-10 2019-03-19 Yeti Coolers, Llc Portable chair
USD843151S1 (en) 2018-01-10 2019-03-19 Yeti Coolers, Llc Portable chair
USD843152S1 (en) 2018-01-10 2019-03-19 Yeti Coolers, Llc Portable chair
USD850810S1 (en) 2018-01-10 2019-06-11 Yeti Coolers, Llc Portable chair

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US662647A (en) * 1900-05-21 1900-11-27 Martin V B Howe Chair-seat.
US3024068A (en) * 1959-04-08 1962-03-06 Miller Herman Inc Demountable furniture web construction
US4558904A (en) * 1983-03-23 1985-12-17 Schultz Moses R Hoop chair
US5318348A (en) * 1991-11-19 1994-06-07 Winston Furniture Company, Inc. Cushioned sling chair
US6035901A (en) * 1992-06-15 2000-03-14 Herman Miller, Inc. Woven fabric membrane for a seating surface
US6102482A (en) * 1999-05-07 2000-08-15 Collins & Aikman Products Co. Lightweight suspension panel for vehicle seats and door panels
US6439665B1 (en) * 2000-06-09 2002-08-27 Stylex Ergonomic chair with mesh seat and back
US20020195863A1 (en) * 2001-06-25 2002-12-26 Tung-Hua Su Chair backrest with ventilating function
US6623079B2 (en) * 1999-09-29 2003-09-23 Peter G. G. Gregory Chair
US20040262975A1 (en) * 2003-06-27 2004-12-30 Tung-Hua Su Backrest assembly

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US662647A (en) * 1900-05-21 1900-11-27 Martin V B Howe Chair-seat.
US3024068A (en) * 1959-04-08 1962-03-06 Miller Herman Inc Demountable furniture web construction
US4558904A (en) * 1983-03-23 1985-12-17 Schultz Moses R Hoop chair
US5318348A (en) * 1991-11-19 1994-06-07 Winston Furniture Company, Inc. Cushioned sling chair
US6035901A (en) * 1992-06-15 2000-03-14 Herman Miller, Inc. Woven fabric membrane for a seating surface
US6102482A (en) * 1999-05-07 2000-08-15 Collins & Aikman Products Co. Lightweight suspension panel for vehicle seats and door panels
US6623079B2 (en) * 1999-09-29 2003-09-23 Peter G. G. Gregory Chair
US6439665B1 (en) * 2000-06-09 2002-08-27 Stylex Ergonomic chair with mesh seat and back
US20020195863A1 (en) * 2001-06-25 2002-12-26 Tung-Hua Su Chair backrest with ventilating function
US20040262975A1 (en) * 2003-06-27 2004-12-30 Tung-Hua Su Backrest assembly

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080079307A1 (en) * 2006-09-30 2008-04-03 Tung-Hua Su Chair Backrest
US20120025574A1 (en) * 2008-12-12 2012-02-02 Formway Furniture Limited Chair, a support, and components
US9622579B2 (en) 2008-12-12 2017-04-18 Formway Furniture Limited Chair, a support, and components
US9033421B2 (en) * 2008-12-12 2015-05-19 Formway Furniture Limited Chair, a support, and components
US20110057496A1 (en) * 2009-09-08 2011-03-10 Tsan-Ching Wang Seats for vehicles
US8109576B2 (en) * 2010-01-25 2012-02-07 Uei Yuang Enterprise Co., Ltd. Seat assembly
US20110181092A1 (en) * 2010-01-25 2011-07-28 Cheng-Hung Lin Seat assembly
US20120313419A1 (en) * 2010-02-10 2012-12-13 Okamura Corporation Stretching structure of chair upholstery material
US8777321B2 (en) * 2010-02-10 2014-07-15 Okamura Corporation Stretching structure of chair upholstery material
US9913540B2 (en) 2012-09-21 2018-03-13 Steelcase Inc. Chair construction
US10194749B1 (en) 2017-05-23 2019-02-05 Yeti Coolers, Llc Portable chair and methods of forming a portable chair
USD843150S1 (en) 2018-01-10 2019-03-19 Yeti Coolers, Llc Portable chair
USD843151S1 (en) 2018-01-10 2019-03-19 Yeti Coolers, Llc Portable chair
USD843152S1 (en) 2018-01-10 2019-03-19 Yeti Coolers, Llc Portable chair
USD850810S1 (en) 2018-01-10 2019-06-11 Yeti Coolers, Llc Portable chair

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Legal Events

Date Code Title Description
AS Assignment

Owner name: RUSSELL INTERNATIONAL CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KANG, MING-SHIANG;REEL/FRAME:017226/0192

Effective date: 20060120

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION