EP0539377A1 - Chaises souples empilables en nombre - Google Patents
Chaises souples empilables en nombreInfo
- Publication number
- EP0539377A1 EP0539377A1 EP91907969A EP91907969A EP0539377A1 EP 0539377 A1 EP0539377 A1 EP 0539377A1 EP 91907969 A EP91907969 A EP 91907969A EP 91907969 A EP91907969 A EP 91907969A EP 0539377 A1 EP0539377 A1 EP 0539377A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- back portion
- seat
- curvilinear
- support legs
- chair
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/02—Rocking chairs
- A47C3/021—Rocking chairs having elastic frames
- A47C3/023—Rocking chairs having elastic frames made of tubular material
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/04—Stackable chairs; Nesting chairs
-
- 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
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
Definitions
- the present invention relates to chair design, more specifically, to a design for a high density stacking chair with a tilting back.
- a high density stacking chair with a tiltable back portion is presented, wherein a single
- the back portion is curved and hollow, and engages the frame at upper and lower curved sections of the frame, which sections have radii of curvatures less than that of the back portion and which sections are positioned at a downward angle such that the effective horizontal radii of the sections in the upright position is shorter than the actual radii, causing the back portion to rest against the curved sections and limit forward tilting of the chair back.
- Fig. 1 is a chair built according to the present invention.
- Fig. 2 is the preferred embodiment of a chair built according to the present embodiment.
- Figs. 3-5 are views taken across section 3-3 of Fig. 1 and showing the chair extending through its range of backward tilt.
- Fig. 6 is a view taken across Section 6-6 of Fig. 4 and represents a plan view of the chair according to the present invention.
- Fig. 7 is a perspective view of the chair according to the present invention.
- a first embodiment of a chair according to the present invention is shown.
- the back portion is curved to adapt to a user's back and is composed of a front section 32 and a rear section 34, each of which has a lip 33, 35 or other spacer which creates a hollow interior space between
- the frame 10 is ideally a continuous structure, constructed of solid rod or tubular steel or the like. Alternatively, it may consist of welded or otherwise connected sections.
- the frame 10 has an upper curved section 12 which is enclosed within the back portion 30 with cylindrical bearing sections 12a at either end and which extends through the middle of the back portion and is angled downward.
- the frame 10 then extends from each end of the upper curved section 12 outward from the hollow interior, the back portion 30 being pivotally attached thereto at the cylindrical sections 12a. This pivotal attachment can be accomplished by bearings attached to the front section 32, but is preferably accomplished by
- the frame 10 has a pair of rear support legs 16 which extend downward and rearward to a floor surface and forwardly along the floor.
- a pair of front support legs 18 then extend upward and rearward to the front of the seat portion 20, then rearward supporting the seat portion 20, then slightly inward, then upward into the back portion 30, then inward, where the back portion is again pivotally attached in a manner similar to the pivot connection 12a and 12b.
- the frame 10 continues to a lower curved section 14 which is enclosed within the back portion and which extends through the back portion having a downward angle.
- the distance d 1 between the opposing legs of the frame 10 as it sits on the floor is lesser than the width d 2 of the seat portion 20, so as to
- the seat supporting portion of the frame 10 is positioned inwardly from the edges of the seat portion 20 and connected by welded struts 22 to improve the support of the seat portion and lateral stability of the frame.
- lateral stability can be provided by a pair of stabilizers 50, 52.
- clips 24 are attached to the bottom surface of the seat portion 20 in order to easily attach/detach the seat portion to frame 10.
- the back portion 30 is a one-piece molded unit, having openings or clips 40 which are adapted to pivotally engage the rear support legs 16 at
- Openings or clips 42 are likewise adapted to pivotally engage the front support legs 18. In this way, the back portion 30 may be easily and securely fitted to frame 10.
- the curved sections 12 and 14 remain in a fixed position relative to frame 10 to provide pivotal limits, as will be next described.
- Figs. 3-5 the tilting action of the back portion 30 is illustrated.
- the rear support legs 16 of the frame 10 are inclined at a forward angle so as to provide a natural spring- type action which holds the back portion 30 forward.
- the curved sections 12 and 14 of frame 10 are parallel, each extending outward and downward from the back of the front section 32 at a twenty-two and one-half degree angle.
- the radii of curvature for both curved sections 12 and 14 is lesser than that of the back portion.
- the radius of curvature of section 12 projected at a plane inclined to the plane of section 12 by an angle of 22.5 degrees equals the radius of curvature of the back portion 30, such that the inside of the front section 32 is in contact with the curved sections 12 and 14 at points 36 and 37 as a result of the effective radius of the curved sections 12 and 14 being equal to the radius of the back portion 30.
- the front section 32 pivots about point 50 on the upper curved section, causing the upper half of the front section to rotate backwards, and the lower half to rotate forward about point 50.
- the seat portion 20 will be lifted by the forward rotation of the lower curved section 14. Since the back portion 30 has a greater radius of curvature than both curved sections, the back portion lifts away from the curved sections as it is tilted, reengaging the curved sections at points 38 and 39, located further down the back portion, where the effective radii of the back portion is again equal to the radii of the curved sections after the back portion has tilted 45 degrees.
- FIG. 6 A clearer view of the relationship of the curved sections 12 and 14 to the overall frame structure 10 is illustrated in Fig. 6 where the cylindrical sections of the frame 12a are apparent providing straight bearing areas.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Stackable Containers (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50671690A | 1990-04-10 | 1990-04-10 | |
US506716 | 1990-04-10 | ||
PCT/US1991/002305 WO1991015139A1 (fr) | 1990-04-10 | 1991-04-03 | Chaises souples empilables en nombre |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0539377A1 true EP0539377A1 (fr) | 1993-05-05 |
EP0539377A4 EP0539377A4 (en) | 1993-06-16 |
EP0539377B1 EP0539377B1 (fr) | 1998-06-17 |
Family
ID=24015733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91907969A Expired - Lifetime EP0539377B1 (fr) | 1990-04-10 | 1991-04-03 | Chaises souples empilables en nombre |
Country Status (12)
Country | Link |
---|---|
US (1) | USRE36335E (fr) |
EP (1) | EP0539377B1 (fr) |
JP (2) | JPH0815446B2 (fr) |
KR (1) | KR0182297B1 (fr) |
AT (1) | ATE167369T1 (fr) |
AU (1) | AU651971B2 (fr) |
CA (1) | CA2080248C (fr) |
DE (1) | DE69129628T2 (fr) |
ES (1) | ES2118081T3 (fr) |
IL (1) | IL97762A (fr) |
NZ (1) | NZ237726A (fr) |
WO (1) | WO1991015139A1 (fr) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6722735B2 (en) | 2001-04-16 | 2004-04-20 | Ditto Sales, Inc. | Chair with synchronously moving seat and seat back |
US6623078B2 (en) | 2001-04-30 | 2003-09-23 | First Source Furniture Group Llc | Adjustable height chair arm supported on back upright |
USD477926S1 (en) | 2002-05-29 | 2003-08-05 | Lifetime Products, Inc. | Chair |
USD466712S1 (en) | 2002-07-17 | 2002-12-10 | Lifetime Products, Inc. | Chair |
USD472723S1 (en) | 2002-07-23 | 2003-04-08 | Lifetime Products, Inc. | Chair frame |
USD472745S1 (en) | 2002-07-23 | 2003-04-08 | Lifetime Products, Inc. | Chair back and seat |
US20040075328A1 (en) * | 2002-10-16 | 2004-04-22 | Royal Seating Corporation | Versatile chair system |
US6974188B2 (en) * | 2003-08-13 | 2005-12-13 | Cosco Management, Inc. | Chair with pivotable chair back |
US20050194823A1 (en) * | 2004-01-29 | 2005-09-08 | Perry Marco C. | Flexible chair with post base |
WO2005107529A2 (fr) * | 2004-05-06 | 2005-11-17 | Perry Marco C | Chaise souple inclinable |
US7114782B2 (en) * | 2004-05-26 | 2006-10-03 | Center For Design Research And Development N.V. | Flexible chair with stiffener inserts and method for forming a chair |
JP4792233B2 (ja) * | 2005-03-02 | 2011-10-12 | 株式会社イトーキ | 椅子 |
JP4792234B2 (ja) * | 2005-03-02 | 2011-10-12 | 株式会社イトーキ | 椅子 |
US7806473B1 (en) | 2005-11-21 | 2010-10-05 | Faiks Frederick S | Stackable chair and framework therefor |
ES2255466A1 (es) * | 2006-02-17 | 2006-06-16 | Sellex. S.A | Mueble de asiento. |
JP4896631B2 (ja) * | 2006-08-29 | 2012-03-14 | 株式会社イトーキ | 椅子 |
KR100754469B1 (ko) | 2006-12-14 | 2007-09-03 | 김성수 | 의자 |
CN102151027B (zh) * | 2007-01-29 | 2016-03-16 | 赫尔曼米勒有限公司 | 座位结构及其使用方法 |
CA2895942A1 (fr) * | 2007-03-13 | 2008-09-13 | Hni Technologies Inc. | Systeme dynamique de support lombaire pour dossier |
US20090096266A1 (en) * | 2007-10-11 | 2009-04-16 | Chun-Chang Tai | Seat frame assembly |
USD668072S1 (en) | 2009-03-09 | 2012-10-02 | Aichi Co., Ltd. | Chair |
US20100244515A1 (en) * | 2009-03-31 | 2010-09-30 | Dragomir Ivicevic | Reclining Chair |
USD669278S1 (en) | 2009-05-08 | 2012-10-23 | Aichi Co., Ltd. | Chair |
USRE42027E1 (en) | 2009-05-08 | 2011-01-18 | Aichi Co., Ltd | Chair |
GB2492706B (en) | 2010-05-05 | 2016-06-22 | Allsteel Inc | Moveable and demountable wall panel system for butt-glazed wall panels |
US9533766B2 (en) * | 2011-05-20 | 2017-01-03 | Zodiac Seats France | Kinematic seat with elastic pivot |
US9504326B1 (en) | 2012-04-10 | 2016-11-29 | Humanscale Corporation | Reclining chair |
CA2906736C (fr) | 2013-03-15 | 2021-11-02 | Hni Technologies Inc. | Chaise ayant une flexion arriere activee |
USD731805S1 (en) * | 2013-11-20 | 2015-06-16 | B&B Italia S.P.A. | Chair |
US10064493B2 (en) | 2014-04-17 | 2018-09-04 | Hni Technologies Inc. | Flex lumbar support |
USD731833S1 (en) | 2014-04-17 | 2015-06-16 | Allsteel Inc. | Chair |
USD743180S1 (en) | 2014-10-15 | 2015-11-17 | Hni Technologies Inc. | Chair |
US9801470B2 (en) | 2014-10-15 | 2017-10-31 | Hni Technologies Inc. | Molded chair with integrated support and method of making same |
DE102016102556A1 (de) | 2016-02-15 | 2017-08-17 | Interstuhl Büromöbel GmbH & Co. KG | Rückenlehne für einen Bürostuhl |
DE102016102557A1 (de) | 2016-02-15 | 2017-08-17 | Interstuhl Büromöbel GmbH & Co. KG | Sitzmöbel mit einem Rückneigeanschlag |
WO2019161168A2 (fr) * | 2018-02-16 | 2019-08-22 | Barrett Studios, Inc. | Ensemble chaise |
JP7083157B2 (ja) * | 2018-05-30 | 2022-06-10 | 愛知株式会社 | 背もたれ及び椅子 |
US11253078B2 (en) * | 2018-08-02 | 2022-02-22 | Whiteside Mfg. Co | Mobile chair |
JPWO2020255195A1 (fr) * | 2019-06-17 | 2020-12-24 | ||
JP7382178B2 (ja) | 2019-08-30 | 2023-11-16 | 株式会社イトーキ | 椅子 |
US20210146634A1 (en) * | 2019-11-14 | 2021-05-20 | Aussco Hong Kong Limited | Three-dimensional loop structure by additive printing |
CN111288869B (zh) * | 2020-02-28 | 2021-09-24 | 保隆(安徽)汽车配件有限公司 | 一种新型通止规装置 |
IT202100006467A1 (it) * | 2021-03-18 | 2022-09-18 | Pro Cord Spa | Sedia con sedile e schienale oscillanti |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE464380A (fr) * | 1945-04-13 | 1946-05-31 | ||
EP0173372A2 (fr) * | 1984-08-08 | 1986-03-05 | Cirkel B.V. | Meuble pour s'asseoir, notamment chaise tournante |
EP0295214A1 (fr) * | 1987-06-09 | 1988-12-14 | Protoned B.V. | Chaise |
Family Cites Families (72)
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US346454A (en) * | 1886-08-03 | Willis baldwin | ||
US142145A (en) * | 1873-08-26 | Improvement in spring rocking-chairs | ||
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CA632397A (en) * | 1961-12-12 | Mackintosh Charles | Nesting chairs | |
US790242A (en) * | 1905-02-10 | 1905-05-16 | Maurice W Yeager | Swing. |
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FR60468E (fr) * | 1950-07-27 | 1954-11-03 | Siège ou chaise longue de tubes métalliques, modifiable et démontable avec bâti de support oscillant élastiquement | |
US2803291A (en) * | 1954-04-22 | 1957-08-20 | Alvin F Meyer | Television chair |
US2961035A (en) * | 1954-05-26 | 1960-11-22 | Lorenz Anton | Article of repose for supporting the body of a person |
GB754209A (en) * | 1954-11-12 | 1956-08-01 | Lea Bridge Ind Ltd | Improvements in chairs |
US2857958A (en) * | 1955-03-30 | 1958-10-28 | Shwayder Brothers | Pivoted backrest |
US2874755A (en) * | 1955-05-02 | 1959-02-24 | Marion J Smith | Nesting chairs |
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FR77026E (fr) * | 1957-10-09 | 1962-01-08 | Siège ou autres articles tels que canapé, etc. | |
FR1196751A (fr) * | 1958-06-04 | 1959-11-26 | Siège inclinable | |
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DE3100770A1 (de) * | 1981-01-13 | 1982-08-12 | Porsche, Ferdinand Alexander, 5662 Gries, Pinzgau | Ruhemoebel, insbesondere sessel |
DE3139448C2 (de) * | 1981-10-03 | 1984-06-07 | Kusch & Co Sitzmöbelwerke KG, 5789 Hallenberg | Stuhl |
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DE8401000U1 (de) * | 1984-01-14 | 1984-04-05 | Mauser Waldeck AG, 3544 Waldeck | Drehsessel |
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IT206947Z2 (it) * | 1986-06-12 | 1987-10-26 | Pro Cord Srl | Sedia con schienale articolato |
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-
1991
- 1991-04-03 KR KR1019920702522A patent/KR0182297B1/ko not_active IP Right Cessation
- 1991-04-03 CA CA002080248A patent/CA2080248C/fr not_active Expired - Lifetime
- 1991-04-03 DE DE69129628T patent/DE69129628T2/de not_active Expired - Lifetime
- 1991-04-03 JP JP3507861A patent/JPH0815446B2/ja not_active Expired - Lifetime
- 1991-04-03 AU AU76916/91A patent/AU651971B2/en not_active Expired
- 1991-04-03 AT AT91907969T patent/ATE167369T1/de not_active IP Right Cessation
- 1991-04-03 EP EP91907969A patent/EP0539377B1/fr not_active Expired - Lifetime
- 1991-04-03 WO PCT/US1991/002305 patent/WO1991015139A1/fr active IP Right Grant
- 1991-04-03 ES ES91907969T patent/ES2118081T3/es not_active Expired - Lifetime
- 1991-04-03 IL IL9776291A patent/IL97762A/en not_active IP Right Cessation
- 1991-04-08 NZ NZ237726A patent/NZ237726A/en unknown
-
1997
- 1997-01-23 US US08/786,994 patent/USRE36335E/en not_active Expired - Lifetime
- 1997-04-07 JP JP9103917A patent/JP3065274B2/ja not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE464380A (fr) * | 1945-04-13 | 1946-05-31 | ||
EP0173372A2 (fr) * | 1984-08-08 | 1986-03-05 | Cirkel B.V. | Meuble pour s'asseoir, notamment chaise tournante |
EP0295214A1 (fr) * | 1987-06-09 | 1988-12-14 | Protoned B.V. | Chaise |
Non-Patent Citations (1)
Title |
---|
See also references of WO9115139A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU7691691A (en) | 1991-10-30 |
WO1991015139A1 (fr) | 1991-10-17 |
CA2080248C (fr) | 1996-10-29 |
DE69129628T2 (de) | 1998-10-15 |
KR0182297B1 (ko) | 1999-05-01 |
JP3065274B2 (ja) | 2000-07-17 |
IL97762A (en) | 1994-08-26 |
DE69129628D1 (de) | 1998-07-23 |
USRE36335E (en) | 1999-10-12 |
EP0539377B1 (fr) | 1998-06-17 |
EP0539377A4 (en) | 1993-06-16 |
ATE167369T1 (de) | 1998-07-15 |
AU651971B2 (en) | 1994-08-11 |
JPH05507632A (ja) | 1993-11-04 |
ES2118081T3 (es) | 1998-09-16 |
JPH0815446B2 (ja) | 1996-02-21 |
JPH1033294A (ja) | 1998-02-10 |
IL97762A0 (en) | 1992-06-21 |
CA2080248A1 (fr) | 1991-10-11 |
NZ237726A (en) | 1994-08-26 |
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