EP0309369B1 - Verformbare Struktur - Google Patents
Verformbare Struktur Download PDFInfo
- Publication number
- EP0309369B1 EP0309369B1 EP88440070A EP88440070A EP0309369B1 EP 0309369 B1 EP0309369 B1 EP 0309369B1 EP 88440070 A EP88440070 A EP 88440070A EP 88440070 A EP88440070 A EP 88440070A EP 0309369 B1 EP0309369 B1 EP 0309369B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deformation
- seats
- gutters
- gutter
- flattening
- 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
Links
Images
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
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S297/00—Chairs and seats
- Y10S297/02—Molded
Definitions
- the present invention relates to a new semi-rigid structure with controlled ability to unidirectional deformation, usable in particular in the construction of ergonomic seats.
- US Pat. No. 4,557,521 describes a seat whose backrest can be inclined elastically towards the rear, under the thrust of the occupant's back, thanks to a flexible elastic zone, in the form of a cylindrical segment, bringing together the seat, fixed, on the back, made in a single rigid piece.
- a flexible elastic zone in the form of a cylindrical segment, bringing together the seat, fixed, on the back, made in a single rigid piece.
- the occupant to rest the head on the upper part of the backrest, the occupant must tilt the entire backrest, without there being a safety limit to this tilting backwards.
- the invention relates to a structure of this kind, but offering a much greater comfort to the user thanks to the fact that its deformation gives rise to a generally rounded shape, thus conforming exactly to the curvature of the back of the user.
- the invention relates to a semi-rigid structure with controllable ability to unidirectional deformation, usable in particular in an embodiment of the ergonomic seats, characterized in that it consists of a succession of parallel blocks of rigid material, joined together by narrow gutters made of thin and / or more flexible material, extending over the entire length of said blocks, the deformation of the structure resulting from the flattening of all the gutters, such flattening being limited by ribs arranged at the interior of said gutters.
- Such a structure according to the invention is therefore particularly advantageous for the production of such seats, in particular office seats, the back of which comprises an upper portion slightly reclining towards the rear to increase the comfort of the occupant by allowing him to relax by throwing the shoulders back.
- such structures can be adapted to any other portion of seats of any kind with the same advantages.
- the structure is specially designed for an armchair whose back is curved to adapt to the rounded shape of the body.
- the structure according to the invention is located, the elements of which are curved, while the lateral, flat portions are integral with the structure and play the role of hinges maintaining this central portion.
- FIGS. 1 a and 1 b there are shown two conventional structures, one of corrugated material, comprising recesses 1, 1 ′, 1 ⁇ on one face and recesses 2, 2 ′, 2 ⁇ on the other side, and the other in accordion, having folds 3, 3 ′, 3 ⁇ on one side and 4, 4 ′, 4 ⁇ on the other side.
- the structure of FIG. 1 is rectilinear, in the direction XX ′, the hollows 1 being equal to the hollows 2
- the structure of FIG. 2 is also rectilinear, in the direction YY ′, the angles of the folds 3 being equal to the angles of the folds 4.
- the structure according to the invention consists of rigid blocks 5, spaced from one another by ribs 6 and joined by gutters 7, made of thinner material and / or more flexible, which constitute the only deformable portions of the structure.
- each gutter being small, when an effect is exerted on the structure in the direction F, the overall direction of the structure will pass from ZZ′ to ZZ ⁇ , the whole Z′ZZ ⁇ being small, and function the number of gutters.
- ribs 8 in the interior of the gutters there are provided, according to the invention, ribs 8 in the interior of the gutters. The control of the deformation of the structure therefore depends on two factors, which can be provided on request, namely the ratio between the width and the depth of each gutter 7 and the thickness of each rib 8.
- FIGS. 3 and 4 The practical realization of this structure is illustrated in FIGS. 3 and 4, where the same elements have the same references, but where the dimensional factors appear which condition the behavior of the structure.
- each block 5 has a thickness of 3 mm, while the rounding of each gutter 7 has only a thickness of 2.25 mm.
- Each gutter has a depth of 12 mm, and an opening of 4 mm, while each rib 8 has a thickness of 2 mm, which leaves to each gutter only a clearance of 2 mm, which represents a deformation of 1 ° of angle.
- the reinforcing ribs 6 between each gutter have a thickness of 1.5 mm.
- FIG. 5 there are shown schematically in horizontal section the back of a chair having a central portion C curved in the vertical direction to conform to the back of the occupant and two flat side portions 9 and 9 '. It is obvious that normally, a portion curved in the vertical direction cannot be bent in the horizontal direction. On the contrary, the structure according to the invention allows such bending, which represents considerable progress and constitutes an important characteristic of the invention.
- the two flat lateral portions 9 and 9 ′ control the horizontal bending of the structure 4-5 by playing the role of hinges.
- the invention therefore provides the problem of making such seats with a fundamentally new and original solution, adaptable to all situations.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88440070T ATE72738T1 (de) | 1987-09-22 | 1988-08-30 | Verformbare struktur. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8713247A FR2620791B1 (fr) | 1987-09-22 | 1987-09-22 | Structure deformable |
FR8713247 | 1987-09-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0309369A1 EP0309369A1 (de) | 1989-03-29 |
EP0309369B1 true EP0309369B1 (de) | 1992-02-26 |
Family
ID=9355203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88440070A Expired - Lifetime EP0309369B1 (de) | 1987-09-22 | 1988-08-30 | Verformbare Struktur |
Country Status (8)
Country | Link |
---|---|
US (1) | US4913493A (de) |
EP (1) | EP0309369B1 (de) |
AT (1) | ATE72738T1 (de) |
CA (1) | CA1285470C (de) |
DE (1) | DE3868575D1 (de) |
ES (1) | ES2029530T3 (de) |
FR (1) | FR2620791B1 (de) |
GR (1) | GR3004689T3 (de) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4427754C2 (de) * | 1994-08-05 | 1997-09-11 | Mauser Office Gmbh | Stuhl, insbesondere Drehstuhl |
KR200154297Y1 (ko) * | 1997-04-03 | 1999-08-02 | 한무길 | 등받이용 탄성가동수단을 구비한 고정의자 |
US6726285B2 (en) | 2000-07-03 | 2004-04-27 | Herman Miller, Inc. | Cellular chair construction |
US6779846B2 (en) * | 2002-08-06 | 2004-08-24 | Mity-Lite, Inc. | Chair with flexible, resilient back support |
ES2292989T3 (es) | 2003-07-18 | 2008-03-16 | Creanova Ag | Tapon articulado moldeado en posicion cerrada. |
NL1025833C2 (nl) * | 2004-03-26 | 2005-10-03 | Bma Ergonomics B V | Stoel met automatische rugleuningshoekinstelling. |
GB2419281A (en) * | 2004-10-25 | 2006-04-26 | Keith Dixon | Magnetically-suspended chair |
US20080272083A1 (en) | 2005-03-14 | 2008-11-06 | Druitt Rodney M | Closure |
JP2007125221A (ja) * | 2005-11-04 | 2007-05-24 | Okamura Corp | 椅子の背凭れ装置 |
CN101534679B (zh) * | 2006-03-24 | 2011-06-15 | 赫尔曼米勒有限公司 | 座椅 |
US8414073B2 (en) * | 2006-03-24 | 2013-04-09 | Herman Miller, Inc. | Seating arrangement |
JP5041510B2 (ja) * | 2006-06-13 | 2012-10-03 | テイ・エス テック株式会社 | 車両用シート |
EP2798977B1 (de) | 2007-09-20 | 2017-11-08 | Herman Miller, Inc. | Lasttragende Struktur |
EP2110051A1 (de) * | 2008-04-18 | 2009-10-21 | Pro-Cord S.P.A. | Stuhl |
US7654617B2 (en) * | 2008-06-06 | 2010-02-02 | Mity-Lite, Inc. | Flexible chair seat |
US8454093B2 (en) | 2008-12-24 | 2013-06-04 | Mity-Lite, Inc. | Mesh chair with open-end hoop |
US8033598B2 (en) | 2008-12-24 | 2011-10-11 | Mity-Lite, Inc. | Mesh folding chair |
US8317269B2 (en) | 2008-12-24 | 2012-11-27 | Mity-Lite, Inc. | Mesh stacking chair |
US8322787B2 (en) | 2008-12-24 | 2012-12-04 | Mity-Lite, Inc. | Clamping joint for a chair |
USD648554S1 (en) | 2009-11-04 | 2011-11-15 | Mity-Lite, Inc. | Mesh stacking chair |
USD660612S1 (en) | 2010-11-16 | 2012-05-29 | Mity-Lite, Inc. | Mesh banquet chair |
CN102529772B (zh) * | 2010-12-29 | 2015-01-14 | 株式会社塔捷斯 | 车辆用座椅的座椅座垫 |
ITTO20110204A1 (it) * | 2011-03-08 | 2012-09-09 | Pro Cord Spa | Sedia con schienale oscillante |
US8567864B2 (en) | 2011-08-12 | 2013-10-29 | Hni Corporation | Flexible back support member with integrated recline stop notches |
DE102012013208B4 (de) * | 2012-05-07 | 2019-07-25 | Adient Luxembourg Holding S.À R.L. | Sitzteil eines Fahrzeugsitzes |
CN104284799B (zh) | 2012-05-07 | 2017-03-22 | 约翰逊控制技术公司 | 用于垂直调节车辆座椅的座椅调节装置 |
DE102012208721A1 (de) * | 2012-05-24 | 2013-11-28 | Lufthansa Technik Ag | Flugzeugsitz mit einer Sitzbaugruppe |
US8820835B2 (en) | 2012-08-29 | 2014-09-02 | Hni Technologies Inc. | Resilient chair incorporating multiple flex zones |
ITTO20131015A1 (it) * | 2013-12-13 | 2015-06-14 | Pro Cord Spa | Sedia con schienale oscillante |
US20170028888A1 (en) * | 2014-05-27 | 2017-02-02 | Johnson Controls Technology Company | Seat system |
US9173492B1 (en) * | 2014-06-06 | 2015-11-03 | Jacques Fortin | Self-reclining chair |
US9560917B2 (en) | 2014-11-26 | 2017-02-07 | Steelcase Inc. | Recline adjustment system for chair |
WO2016115488A1 (en) | 2015-01-16 | 2016-07-21 | Herman Miller, Inc. | Zoned suspension seating structure |
ITUB20150149A1 (it) * | 2015-02-17 | 2016-08-17 | Pro Cord Spa | Sedia con sedile oscillante |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
US10194750B2 (en) | 2015-04-13 | 2019-02-05 | Steelcase Inc. | Seating arrangement |
BR112017022038B1 (pt) | 2015-04-13 | 2021-11-03 | Steelcase Inc. | Disposição de assento |
US10966527B2 (en) | 2017-06-09 | 2021-04-06 | Steelcase Inc. | Seating arrangement and method of construction |
CN109788851B (zh) | 2016-09-29 | 2022-05-27 | 斯迪尔科斯公司 | 柔顺的座椅结构 |
WO2019032971A1 (en) | 2017-08-10 | 2019-02-14 | Hni Corporation | CHAIRS COMPRISING FLEXIBLE FRAMES |
US11291305B2 (en) | 2017-12-05 | 2022-04-05 | Steelcase Inc. | Compliant backrest |
US10813463B2 (en) | 2017-12-05 | 2020-10-27 | Steelcase Inc. | Compliant backrest |
WO2021055441A1 (en) | 2019-09-18 | 2021-03-25 | Steelcase Inc. | Body support member with lattice structure |
IT202100014576A1 (it) * | 2021-06-04 | 2022-12-04 | Pro Cord Spa | Sedia con schienale flessibile |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR860938A (fr) * | 1939-07-11 | 1941-01-28 | Faure Bertrand Ets | Perfectionnement apporté dans l'établissement des sièges et notamment des siègespour véhicules |
IT1132630B (it) * | 1980-09-03 | 1986-07-02 | Interieur Forma Sa | Sedile inclinabile |
GR79649B (de) * | 1982-10-22 | 1984-10-31 | Castelli Spa | |
US4733910A (en) * | 1985-03-18 | 1988-03-29 | Sebel Furniture Ltd. | Article of furniture |
DE3604534A1 (de) * | 1986-02-13 | 1987-08-20 | Hartmut Lohmeyer | Sitzmoebel mit einem sitz und einer in sich elastisch nachgebenden rueckenlehne |
-
1987
- 1987-09-22 FR FR8713247A patent/FR2620791B1/fr not_active Expired
-
1988
- 1988-08-30 ES ES198888440070T patent/ES2029530T3/es not_active Expired - Lifetime
- 1988-08-30 DE DE8888440070T patent/DE3868575D1/de not_active Expired - Fee Related
- 1988-08-30 EP EP88440070A patent/EP0309369B1/de not_active Expired - Lifetime
- 1988-08-30 AT AT88440070T patent/ATE72738T1/de not_active IP Right Cessation
- 1988-09-13 US US07/243,903 patent/US4913493A/en not_active Expired - Fee Related
- 1988-09-15 CA CA000577457A patent/CA1285470C/fr not_active Expired - Fee Related
-
1992
- 1992-05-26 GR GR920400820T patent/GR3004689T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
ATE72738T1 (de) | 1992-03-15 |
DE3868575D1 (de) | 1992-04-02 |
US4913493A (en) | 1990-04-03 |
FR2620791A1 (fr) | 1989-03-24 |
CA1285470C (fr) | 1991-07-02 |
FR2620791B1 (fr) | 1989-12-29 |
ES2029530T3 (es) | 1992-08-16 |
EP0309369A1 (de) | 1989-03-29 |
GR3004689T3 (de) | 1993-04-28 |
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