US2847062A - Chair back construction - Google Patents
Chair back construction Download PDFInfo
- Publication number
- US2847062A US2847062A US678899A US67889957A US2847062A US 2847062 A US2847062 A US 2847062A US 678899 A US678899 A US 678899A US 67889957 A US67889957 A US 67889957A US 2847062 A US2847062 A US 2847062A
- Authority
- US
- United States
- Prior art keywords
- chair
- backrest
- chair back
- members
- supports
- 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.)
- Expired - Lifetime
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/42—Support for the head or the back for the back of detachable or loose type
Definitions
- the present invention relates to chairs and more particularly to a chair back construction.
- the primary objects of the invention are to provide a chair having a frame including upright back supports and a backrest mounted on the upper ends of the back supports in such a way as to be self-adjusting in its angle of tilt t-o fit the chair occupants back in any position; to provide a chair back having integrally molded plastic backrest, mounting members and canopy, and in which the self-adjustment of the backrest is provided by a slight resilience in the plastic material so as to permit flexing of the backrest relative to the mounting members and back supports; and in general to provide such a chair back construction which is eificient and quiet in its intended use, simple and reasonably economical in manufacture, and attractive in appearance.
- Figure 1 is a rear perspective view of a chair utilizing the new construction
- Figure 2 is a fragmentary rear elevational view of the upper part of the chair back, with portions broken away;
- Figure 3 is a vertical sectional view of the same taken on line 33 of Figure 2;
- Figure 4 is a vertical sectional view of the same taken on line 44 of Figure 2;
- Figure 5 is a side elevational view of the same, the backrest being indicated in several different tilted positions in solid, dotted and broken lines;
- Figure 6 is a perspective view of a retaining element utilized in the construction.
- the chair shown in Figure 1 generally comprises a frame including legs 10, cross bars 11 and a pair of back supports 12, and a chair seat 13 and chair back 14.
- the spaced, upstanding, tubular metal back supports 12 are open at their upper ends. If desired, these back supports 12 may be connected at their upper ends by a cross brace 15 as seen in Figure 2, but since this is optional the cross brace has been omitted in Figures 3, 4 and 5.
- the chair back 14 comprises a backrest 16 of concave form, a pair of depending tubular members 17 extending rearwardly from the backrest and then downwardly, and a canopy 18 extending rearwardly and downwardly from the backrest and enclosing the depending tubular members 17.
- the chair back 14 is assembled to the tubular back supports 12 by first pressing the upper ends of the retaining elements 19 into the lower ends of the depending tubular members 17 of the chair back 14 so that the upper washers 20 grip the internal walls of the members 17, and then fitting the members 17 into the open upper ends of the tubular back supports 12 so that the lower retainer washers 21 grip the internal walls of the back supports.
- the backrest 16, depending members 17 and canopy 18, which together constitute the chair 14, are all integrally molded of a slightly resilient plastic material which permits flexing of the backrest 16 relative to the members 17 and the back supports 12, as indicated in Figure 5.
- the backrest 16 is thus self-adjusting as to tilt so as to accommodate itself to the form and position of the chair occupant resulting in better posture and greater comfort for the occupant.
- the invention provides a simple and relatively inexpensive self-adjusting chair back which is free of the more conventional mechanical pivots, which is quickly and easily assembled to the chair, and which is quiet and effective in use. While but one specific embodiment of the invention has been herein shown and described it will be understood that numerous details may be altered or omitted without departing from the spirit of the invention as defined by the following claims.
- a frame including an upstanding back support; and a chair back comprising a backrest and a member extending rearwardly from the backrest and connected to the upper end of said back support, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said member and said back support.
- a frame including an upstanding back support; and a chair back comprising a backrest and a depending member extending rearwardly from the backrest and then downwardly and connected to the upper end of said back support, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said depending member and said back support.
- a frame including a pair of spaced upstanding back supports; and a chair back comprising a backrest and a pair of depending members extending rearwardly from the backrest and then downwardly and connected to the upper ends of said back supports, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said depending members and said back supports.
- a chair structure according to claim 3 in which the chair back includes .an integrally molded canopy'extending rearwardly and downwardly from the backrest and enclosing said depending members and the upper ends of said back supports.
- a frame including .a pair of spaced upstanding tubular metal back supports open at their upper ends; and a chair back comprising a backrest and a pair of depending members extending rearwardly from the backrest and then downwardly and fitted into the open upper ends of said back supports, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said depending members and said back supports.
- a chair structure according to claim 5 in which the chair back includes an integrally molded canopy extending rearwardly and downwardly from the backrest and enclosing the depending members and the upper ends of said back supports.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
Aug. 12,1958 I B. w. HENRIKSON ETAL 2,347,062
CHAIR BACK CONSTRUCTION Filed Aug. 19, 1957 2 sheets-sheen INVENTORS Brat 7V. Henvihdon Alfred C. H0062: 27'" WITNESS 13 211-1122 E. Naz-dmarb;
ATTORNEY B. w. HENRIK'SON ETAL (2mm BACK CONSTRUCTION Aug. 12, 1958 2 Sheets-Sheet 2 Filed Aug. 19, 1957 INVENTORS Ffflnrilza'on, Alfred LZJIozJen v Wall-er E. Nbrdmarb; BY $44M WITNESS ATTORNEY United States Patent CHAIR IIACK CONSTRUCTION Bror W. Henrikson, Alfred C. Hoven, and Walter E.
Nordmark, Grand Rapids, Mich., assignors to American Seating Company, Grand Rapids, Mich., a corporation of New Jersey Application August 19, 1957, Serial No. 678,899
6 Claims. (Cl. 155- 191) The present invention relates to chairs and more particularly to a chair back construction.
The primary objects of the invention are to provide a chair having a frame including upright back supports and a backrest mounted on the upper ends of the back supports in such a way as to be self-adjusting in its angle of tilt t-o fit the chair occupants back in any position; to provide a chair back having integrally molded plastic backrest, mounting members and canopy, and in which the self-adjustment of the backrest is provided by a slight resilience in the plastic material so as to permit flexing of the backrest relative to the mounting members and back supports; and in general to provide such a chair back construction which is eificient and quiet in its intended use, simple and reasonably economical in manufacture, and attractive in appearance.
An illustrative embodiment of the invention is shown in the accompanying drawings, wherein:
Figure 1 is a rear perspective view of a chair utilizing the new construction;
Figure 2 is a fragmentary rear elevational view of the upper part of the chair back, with portions broken away;
Figure 3 is a vertical sectional view of the same taken on line 33 of Figure 2;
Figure 4 is a vertical sectional view of the same taken on line 44 of Figure 2;
Figure 5 is a side elevational view of the same, the backrest being indicated in several different tilted positions in solid, dotted and broken lines; and
Figure 6 is a perspective view of a retaining element utilized in the construction.
Referring now in detail to these drawings the chair shown in Figure 1 generally comprises a frame including legs 10, cross bars 11 and a pair of back supports 12, and a chair seat 13 and chair back 14. The spaced, upstanding, tubular metal back supports 12 are open at their upper ends. If desired, these back supports 12 may be connected at their upper ends by a cross brace 15 as seen in Figure 2, but since this is optional the cross brace has been omitted in Figures 3, 4 and 5.
The chair back 14 comprises a backrest 16 of concave form, a pair of depending tubular members 17 extending rearwardly from the backrest and then downwardly, and a canopy 18 extending rearwardly and downwardly from the backrest and enclosing the depending tubular members 17. A pair of retaining elements 19, one of which is seen per se in Figure 6, each has a pronged upper retainer washer 20 and a larger pronged lower retainer washer 21.
The chair back 14 is assembled to the tubular back supports 12 by first pressing the upper ends of the retaining elements 19 into the lower ends of the depending tubular members 17 of the chair back 14 so that the upper washers 20 grip the internal walls of the members 17, and then fitting the members 17 into the open upper ends of the tubular back supports 12 so that the lower retainer washers 21 grip the internal walls of the back supports.
The backrest 16, depending members 17 and canopy 18, which together constitute the chair 14, are all integrally molded of a slightly resilient plastic material which permits flexing of the backrest 16 relative to the members 17 and the back supports 12, as indicated in Figure 5. The backrest 16 is thus self-adjusting as to tilt so as to accommodate itself to the form and position of the chair occupant resulting in better posture and greater comfort for the occupant.
The invention provides a simple and relatively inexpensive self-adjusting chair back which is free of the more conventional mechanical pivots, which is quickly and easily assembled to the chair, and which is quiet and effective in use. While but one specific embodiment of the invention has been herein shown and described it will be understood that numerous details may be altered or omitted without departing from the spirit of the invention as defined by the following claims.
We claim:
1. In a chair structure: a frame including an upstanding back support; and a chair back comprising a backrest and a member extending rearwardly from the backrest and connected to the upper end of said back support, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said member and said back support.
2. In a chair structure: a frame including an upstanding back support; and a chair back comprising a backrest and a depending member extending rearwardly from the backrest and then downwardly and connected to the upper end of said back support, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said depending member and said back support.
3. In a chair structure: a frame including a pair of spaced upstanding back supports; and a chair back comprising a backrest and a pair of depending members extending rearwardly from the backrest and then downwardly and connected to the upper ends of said back supports, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said depending members and said back supports.
4. A chair structure according to claim 3 in which the chair back includes .an integrally molded canopy'extending rearwardly and downwardly from the backrest and enclosing said depending members and the upper ends of said back supports.
5. In a chair structure: a frame including .a pair of spaced upstanding tubular metal back supports open at their upper ends; and a chair back comprising a backrest and a pair of depending members extending rearwardly from the backrest and then downwardly and fitted into the open upper ends of said back supports, said chair back being integrally molded of slightly resilient material so as to permit flexing of the backrest relative to said depending members and said back supports.
6. A chair structure according to claim 5 in which the chair back includes an integrally molded canopy extending rearwardly and downwardly from the backrest and enclosing the depending members and the upper ends of said back supports.
References Cited in the file of this patent UNITED STATES PATENTS 1,567,695 Angell Dec. 29, 1925 2,538,634 Vogelsang Jan. 16, 1951 2,577,050 Van Buren Dec. 4, 1951 2,670,226 Becker Feb. 23, 1954 2,812,800 Eames Nov. 12, 1957
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US678899A US2847062A (en) | 1957-08-19 | 1957-08-19 | Chair back construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US678899A US2847062A (en) | 1957-08-19 | 1957-08-19 | Chair back construction |
Publications (1)
Publication Number | Publication Date |
---|---|
US2847062A true US2847062A (en) | 1958-08-12 |
Family
ID=24724755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US678899A Expired - Lifetime US2847062A (en) | 1957-08-19 | 1957-08-19 | Chair back construction |
Country Status (1)
Country | Link |
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US (1) | US2847062A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959212A (en) * | 1958-07-14 | 1960-11-08 | Gendron Wheel Company | Seat tube guide for folding wheel chairs |
US2959213A (en) * | 1958-10-20 | 1960-11-08 | Nat Lock Co | Hinge swivel for chair back |
US3008764A (en) * | 1958-07-07 | 1961-11-14 | Miller Herman Inc | Chair |
US3027195A (en) * | 1958-12-01 | 1962-03-27 | Miller Herman Inc | Multi-piece formed furniture construction |
US3111344A (en) * | 1962-02-05 | 1963-11-19 | American Seating Co | Chair |
US3317242A (en) * | 1965-05-17 | 1967-05-02 | Hamilton Cosco Inc | Chair construction |
US3879087A (en) * | 1973-10-12 | 1975-04-22 | Gerard Russo | Cycle seat backrest |
US3934930A (en) * | 1974-11-07 | 1976-01-27 | Leggett & Platt, Incorporated | Back support for chair |
US5195804A (en) * | 1988-07-19 | 1993-03-23 | Stolle Herbert D | Back-rest having two oval shaped shells each concave to vertical and convex to horizontal |
USD429926S (en) * | 1999-04-27 | 2000-08-29 | Zi-Wen Cao | Backrest support frame for a chair |
US20080036267A1 (en) * | 2006-04-24 | 2008-02-14 | Sedus Stoll Ag | Backrest attachment device |
US20090315383A1 (en) * | 2008-06-12 | 2009-12-24 | Milsco Manufacturing | Vehicle Seat Assembly |
US7775600B2 (en) | 2006-04-28 | 2010-08-17 | Steelcase Development Corporation | Seating construction and method of assembly |
US8998338B2 (en) | 2012-09-20 | 2015-04-07 | Steelcase Inc. | Chair assembly with upholstery covering |
USD932204S1 (en) | 2020-01-02 | 2021-10-05 | Steelcase Inc. | Chair |
USD932202S1 (en) | 2020-01-02 | 2021-10-05 | Steelcase Inc. | Chair |
US11304528B2 (en) | 2012-09-20 | 2022-04-19 | Steelcase Inc. | Chair assembly with upholstery covering |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1567695A (en) * | 1923-09-21 | 1925-12-29 | White S Dental Mfg Co | Backrest |
US2538634A (en) * | 1949-09-14 | 1951-01-16 | Webster B Harpman | Chair bumper |
US2577050A (en) * | 1947-04-04 | 1951-12-04 | Tracy Henry Van Buren | Resilient back rest for posture chairs |
US2670226A (en) * | 1951-01-13 | 1954-02-23 | United Carr Fastener Corp | Fastening device |
US2812800A (en) * | 1956-05-03 | 1957-11-12 | Herman Miller Furniture Compan | Multiple seating assembly |
-
1957
- 1957-08-19 US US678899A patent/US2847062A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1567695A (en) * | 1923-09-21 | 1925-12-29 | White S Dental Mfg Co | Backrest |
US2577050A (en) * | 1947-04-04 | 1951-12-04 | Tracy Henry Van Buren | Resilient back rest for posture chairs |
US2538634A (en) * | 1949-09-14 | 1951-01-16 | Webster B Harpman | Chair bumper |
US2670226A (en) * | 1951-01-13 | 1954-02-23 | United Carr Fastener Corp | Fastening device |
US2812800A (en) * | 1956-05-03 | 1957-11-12 | Herman Miller Furniture Compan | Multiple seating assembly |
Cited By (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3008764A (en) * | 1958-07-07 | 1961-11-14 | Miller Herman Inc | Chair |
US2959212A (en) * | 1958-07-14 | 1960-11-08 | Gendron Wheel Company | Seat tube guide for folding wheel chairs |
US2959213A (en) * | 1958-10-20 | 1960-11-08 | Nat Lock Co | Hinge swivel for chair back |
US3027195A (en) * | 1958-12-01 | 1962-03-27 | Miller Herman Inc | Multi-piece formed furniture construction |
US3111344A (en) * | 1962-02-05 | 1963-11-19 | American Seating Co | Chair |
US3317242A (en) * | 1965-05-17 | 1967-05-02 | Hamilton Cosco Inc | Chair construction |
US3879087A (en) * | 1973-10-12 | 1975-04-22 | Gerard Russo | Cycle seat backrest |
US3934930A (en) * | 1974-11-07 | 1976-01-27 | Leggett & Platt, Incorporated | Back support for chair |
US5195804A (en) * | 1988-07-19 | 1993-03-23 | Stolle Herbert D | Back-rest having two oval shaped shells each concave to vertical and convex to horizontal |
USD429926S (en) * | 1999-04-27 | 2000-08-29 | Zi-Wen Cao | Backrest support frame for a chair |
US20080036267A1 (en) * | 2006-04-24 | 2008-02-14 | Sedus Stoll Ag | Backrest attachment device |
US7552975B2 (en) * | 2006-04-24 | 2009-06-30 | Sedus Stoll Ag | Backrest attachment device |
US7775600B2 (en) | 2006-04-28 | 2010-08-17 | Steelcase Development Corporation | Seating construction and method of assembly |
US20090315383A1 (en) * | 2008-06-12 | 2009-12-24 | Milsco Manufacturing | Vehicle Seat Assembly |
US8096621B2 (en) | 2008-06-12 | 2012-01-17 | Milsco Manufacturing Company | Vehicle seat assembly |
US9027998B2 (en) | 2012-09-20 | 2015-05-12 | Steelcase Inc. | Chair assembly |
US9451826B2 (en) | 2012-09-20 | 2016-09-27 | Steelcase Inc. | Chair assembly |
US9010859B2 (en) | 2012-09-20 | 2015-04-21 | Steelcase Inc. | Chair assembly |
US9022476B2 (en) | 2012-09-20 | 2015-05-05 | Steelcase Inc. | Control assembly for chair |
US9027999B2 (en) | 2012-09-20 | 2015-05-12 | Steelcase Inc. | Control assembly for chair |
US8998338B2 (en) | 2012-09-20 | 2015-04-07 | Steelcase Inc. | Chair assembly with upholstery covering |
US9027997B2 (en) | 2012-09-20 | 2015-05-12 | Steelcasel Inc. | Chair assembly |
US9049935B2 (en) | 2012-09-20 | 2015-06-09 | Steelcase Inc. | Control assembly for chair |
US9173491B2 (en) | 2012-09-20 | 2015-11-03 | Steelcase Inc. | Chair assembly with upholstery covering |
USD742676S1 (en) | 2012-09-20 | 2015-11-10 | Steelcase Inc. | Chair |
US9179777B2 (en) | 2012-09-20 | 2015-11-10 | Steelcase Inc. | Method of assembling a chair component |
USD742677S1 (en) | 2012-09-20 | 2015-11-10 | Steelcase Inc. | Chair |
US9345328B2 (en) | 2012-09-20 | 2016-05-24 | Steelcase Inc. | Chair assembly with upholstery covering |
US9004597B2 (en) | 2012-09-20 | 2015-04-14 | Steelcase Inc. | Chair back mechanism and control assembly |
US9462888B2 (en) | 2012-09-20 | 2016-10-11 | Steelcase Inc. | Control assembly for chair |
US9492013B2 (en) | 2012-09-20 | 2016-11-15 | Steelcase Inc. | Chair back mechanism and control assembly |
US9526339B2 (en) | 2012-09-20 | 2016-12-27 | Steelcase Inc. | Control assembly for chair |
US9681750B2 (en) | 2012-09-20 | 2017-06-20 | Steelcase Inc. | Chair assembly with upholstery covering |
US9844267B2 (en) | 2012-09-20 | 2017-12-19 | Steelcase Inc. | Chair back mechanism and control assembly |
US9861201B2 (en) | 2012-09-20 | 2018-01-09 | Steelcase, Inc. | Chair assembly |
US9918552B2 (en) | 2012-09-20 | 2018-03-20 | Steelcase Inc. | Control assembly for chair |
US10165861B2 (en) | 2012-09-20 | 2019-01-01 | Steelcase Inc. | Chair assembly with upholstery covering |
US10206507B2 (en) | 2012-09-20 | 2019-02-19 | Steelcase Inc. | Control assembly for chair |
US10765212B2 (en) | 2012-09-20 | 2020-09-08 | Steelcase Inc. | Chair assembly with upholstery covering |
US11304528B2 (en) | 2012-09-20 | 2022-04-19 | Steelcase Inc. | Chair assembly with upholstery covering |
USD932202S1 (en) | 2020-01-02 | 2021-10-05 | Steelcase Inc. | Chair |
USD932204S1 (en) | 2020-01-02 | 2021-10-05 | Steelcase Inc. | Chair |
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