US3565482A - Adjustable contour chair - Google Patents

Adjustable contour chair Download PDF

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Publication number
US3565482A
US3565482A US3565482DA US3565482A US 3565482 A US3565482 A US 3565482A US 3565482D A US3565482D A US 3565482DA US 3565482 A US3565482 A US 3565482A
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guideway
chair
links
seat
hinge
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Expired - Lifetime
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Leif Blodee
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LEIF BLODEE
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LEIF BLODEE
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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
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/405Support for the head or the back for the back with double backrests
    • 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
    • A47C7/14Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • 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
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • 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
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/46Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs

Abstract

A CONTOUR CHAIR WITH A FRAME INCLUDING A CENTRAL GUIDEWAY MEMBER DISPOSED IN A VERTICAL PLANE, AND ALSO HAVING A PLURALITY OF SEAT-BACK ELEMENTS SUPPORTED BY LINKS EXTENDING TO MEMBERS ADJUSTABLY POSITIONED ALONG SAID GUIDEWAY MEMBER, WHEREBY VARIATION IN THE ATTITUDE OF THE LINKS WITH RESPECT TO THE GUIDEWAY RESULTS IN ALTERING THE RELATIVE POSITION OF THE SEAT-BACK ELEMENTS.

Description

Feb. 23, 1971 L. BLODEE ADJUSTABLE CONTOUR CHAIR 2 Sheets-Sheet 1 Filed June 24, 1968 INVENTOR. LE/F BLUDEE l iiq Feb. 23, 1971 I BLODEE 3,565,432

7 I ADJUSTABLE CONTOUR CHAIR Filed June 24; 1968 2 Sheets-Sheet 2 lNVE/VTO/P. LE/F BLODEE United States Patent Oifice 3,565,482 ADJUSTABLE CONTOUR CHAIR Leif Blodee, 205 Indian Trail, Poland, Ohio 44514 Filed June 24, 1968, Ser. No. 739,451 Int. Cl. A47c 1/031 US. Cl. 297-284 Claims ABSTRACT OF THE DISCLOSURE A contour chair with a frame including a central guideway member disposed in a vertical plane, and also having a plurality of seat-back elements supported by links extending to members adjustably positioned along said guideway member, whereby variation in the attitude of the links with respect to the guideway results in altering the relative position of the seat-back elements.

SUMMARY OF THE INVENTION necessarily results in missing the necessary configurations for any particular occupant. This situation can be accepted where the chair is to be used in public areas, where no particular individual is likely to use the chair continually. When the chair is used in the home or office, however, it becomes very desirable to accommodate the chair to the peculiarities of body structure of the person that will be using it most of the time. Custom-made chairs are available, but the cost of these is usually prohibitive. The present invention provides a contour chair with body-supporting units that can be adjusted with respect to their relative positions, which permits the chair to be manufactured according to normal production techniques while preserving all of the advantages of custom-made furniture.

In the preferred form of the invention, the frame of the chair includes a central beam provided with guideways, and the seat-back elements are mounted upon links extending from these elements to terminal members adjustable along the guideways. This arrangement permits the attitude of the links to be varied with respect to the guideway, which brings the associated point of the seatback member toward or away from the guideway. The maximum distance of the seat-back member from the guideway will, of course, be determined by a positioning of the link perpendicular to the guideway. The progressively increased slant will result in bringing the associated point of connection of the seat-back member nearer to the guideway. The seat-back elements are preferably hingedly inter-connected, with the supporting links being pivoted coaxially with these points of hinge connection. In the most satisfactory arrangement, each point of hinge connection between the seat-back elements is provided with a pair of links, which can be spread or brought to approaching parallelism to vary the distance of the hinge axis from the guideway beam. These terminal members, or shoes, which support the links are lockable in a selected position on the guideway, and the chair can thus be progressively adjusted from one end to the other to accommodate a particular person. As his body configuration changes with age or weight variations, the chair can be 3,565,482 Patented Feb. 23, 1971 continually re-adjusted to produce the maximum degree of comfort.

DETAILED DESCRIPTION The several features of the invention will be analyzed in detail through a discussion of the particular embodiment illustrated in the accompanying drawings. In the drawings:

FIG. 1 is a side elevation showing the preferred form of the invention.

FIG. 2 is a rear elevation of the chair shown in FIG. 1.

FIG. 3 is an enlarged fragmentary sectional view on the plane 33 of FIG. 2.

FIG. 4 is a section on the plane 44 of FIG. 3.

FIG. 5 is a section on the plane 5-5 of FIG. 3.

FIG. 6 is a section on the plane 66 of FIG. 5.

FIG. 7 is a perspective view showing the central guideway beam on the frame, the links, and the supporting plate for the seat-back elements.

FIG. 8 is a view similar to FIG. 1, but showing a variation of the relative position of the seat-back elements obtainable with the adjustment of the structure.

The frame generally indicated at 10 includes front legs 11, the rear legs 12, and the central guideway beam 13. The guideway beam 13 is disposed in a generally vertical plane, and is bent to a configuration (in side elevation) intended as an approximate shape for the average user of the chair, assuming that the body-supporting surfaces of the seat-back elements 14 would be arranged on a path generally parallel to the configuration of the beam 13. The front and rear legs 11 and 12 are preferably U-shaped in configuration, and the resulting frame produces a very attractive design. This frame is normally made of metal, with the guideway member 13 being preferably of some extrudable material such as aluminum. The head-supporting unit 15 is supported in the same way as the seat-back members 14, and differs from them only in the provision of the side wings 15a and 15b. The seat member 16 may be provided with arm rests 17 and 18 supported on vertical extensions as shown at 19in FIG. 1.

In the illustrated embodiment of the invention, each of the seat-back members (including the seat 16 and the head rest 15) are pivotally interconnected, as shown in FIGS. 3, 6, and 7. A supporting plate 20 is provided for each of these seat-back elements, and the upholstery 21 and cover 22 are conveniently secured in the usual manner to a base panel 23, which will usually be of plywood. This base can be attached to the plate 20 by screws, bolts, or adhesive material.

The plates 20 have enlargements at each end to provide for the hinge elements, and these enlargements are drilled out to receive the hinge bolts 24. These can either be in the shape of a conventional hinge pin or may be bolts with recessed heads so that they can be threaded into one of the hinge elements to maintain the axial position of the bolt. This configuration of the plates 20 is obtainable through extruding this member in a direction perpendicular to FIG. 3. The separate interengaged hinge elements can then be machined away in any desired pattern so that hinge elements (as indicated at 25 and 26 in FIG. 7) will be associated with each of the plates 20 at each hinge.

Each of the hinge assemblies is supported by a pair of links as shown at 27 and 28. The hinge elements 29 may be associated with the link 28, and the hinge element 30 with the link 27. The opposite end of the link 27 is pivotally interconnected with the terminal shoes 31 and 32 by the bolt 33. The portion 34 of the link 27 has been machined at its ends to provide cut-outs for receiving the shoes 31 and 32, and the length of the portion 34 has been selected to permit the bolt 33 to draw the shoes 31 and 32 toward each other, as a result of the threaded engageu ment of the bolt 33 with the shoe 31. The bolt 33 is freely rotatable with respect to the shoe 32. This action binds the shoes 31 and 32 against the adjacent walls of the guideway grooves 35 and 36, and thus locks the position of the shoes along the guideway. The securing of the bolts 33 in this manner will therefore lock the adjusted positions of the links with respect to the guideway beam 31, and thus will establish the adjusted relative positions of the seat-back elements. The link 28, and the remainder of the links of the entire assembly, are supported and constructed in the same fashion as the link 27.

While the chair will normally be manufactured in a configuration in which the seat-back elements are relatively disposed with the supporting surfaces approximately parallel to the back 13, a readjustment of the relative position of the links will produce the variation in the alignment of the supporting surfaces shown in FIG. 8. The links themselves can be extruded in the same manner as described above in connection with the plates 20. If desired, links of various lengths can be used at different positions along the beam 13, as experience suggests more or less freedom of adjustment.

The particular embodiments of the present invention which have been illustrated and discussed herein are for illustrative purposes only and are not to be considered as a limitation upon the scope of the appended claims. In these claims, it is my intent to claim the entire invention disclosed herein, except as I am limited by the prior art.

I claim:

1. A contour chair having a plurality of body-supporting members and a frame including leg members, wherein the improvement comprises:

a central beam component of said frame, said beam component having a guideway; and

link means pivotally connected at one end to at least certain of said body-supporting members, and movably mounted at the opposite end on said guideway, and securable at selected positions thereon, to place said link means in adjustable angular relatonship with respect to said beam component.

2. A contour chair having a plurality of body-supporting members pivotally interconnected by hinge means, and also having a frame including leg members, wherein the improvement comprises:

a central beam component of said frame; and

a pair of links each pivotally connected at one end to each of said hinge means coaxially therewith, and movably secured at the opposite ends to said guideway to place said links in adjustable angular relationship with respect to said beam components, and thereby adjust the relative position of said bodysupporting members.

3. A chair as defined in claim 2, wherein said beam component has a groove forming a guideway, and said links are each pivotally connected to at least one shoe engaging said guideway.

4. A chair as defined in claim 3, wherein said shoes are connected to said links by a bolt, and said bolt is adapted to generate a clamping action securing said shoes in position along said guideway.

5. A chair as defined in claim 4, wherein said beam component has a pair of spaced grooves, and said links each have shoes engaging each of said grooves, and said bolt is operative to draw said shoes toward each other to generate said clamping action.

References Cited UNITED STATES PATENTS 21,562 9/1858 Holmes 297284 2,139,028 12/1938 Mensendieck 297284 2,685,327 8/1954 Pitman 297284 3,112,137 11/1963 Drenth 297284 3,288,525 11/1966 Cerf 297-284 3,379,472 4/1968 Hilfiker 297-284 FRANCIS K. ZUGEL, Primary Examiner US. Cl. X.R.

US3565482D 1968-06-24 1968-06-24 Adjustable contour chair Expired - Lifetime US3565482A (en)

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Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753592A (en) * 1971-02-11 1973-08-21 C Jensen Lounge
US3862454A (en) * 1972-08-26 1975-01-28 Icf De Padova S R L Divan having adjustable catenary and horizontal layout positions
US3877750A (en) * 1972-08-05 1975-04-15 Porsche Ag Reposing furniture
US4182533A (en) * 1978-12-26 1980-01-08 Uop Inc. Seat backrest having an adjustable lumbar support
US4347840A (en) * 1980-10-27 1982-09-07 Orthotech, Incorporated Orthopedic correctional support system
US4484778A (en) * 1981-03-31 1984-11-27 University College London Shapeable matrix, and a chair using a matrix
US4585272A (en) * 1982-10-22 1986-04-29 Castelli S.P.A. Chair having a back comprising a plurality of articulated segments
US4601514A (en) * 1983-07-08 1986-07-22 Messrs. Willibald Grammer Seat having an adjustable back support arrangement
EP0202386A2 (en) * 1985-05-17 1986-11-26 Zani Collezione Poltrone Di Zani Guiseppe An armchair structure having an adjustable anatomical configuration
US4688853A (en) * 1983-07-11 1987-08-25 Watts Robert J Shape-defining articulated structures
US4730872A (en) * 1985-07-22 1988-03-15 Goelzer Siegbert Bench with V-shaped slats
US4798414A (en) * 1987-01-13 1989-01-17 Vincent Hughes Physiotherapeutic chair like device
US4799732A (en) * 1987-10-06 1989-01-24 Okamura Corporation Chair seat inclining and moving device
US5871258A (en) * 1997-10-24 1999-02-16 Steelcase Inc. Chair with novel seat construction
US5975641A (en) * 1995-06-06 1999-11-02 Delesie; Patrick Undulatory motion relaxation device for furniture with a suspension system
US6089664A (en) * 1996-01-27 2000-07-18 Yoshida; Atsuo Support for backrest and seat of seat furniture
US6238001B1 (en) * 1996-09-30 2001-05-29 Amos Yoran Adjustable chair
US20020021040A1 (en) * 2000-07-03 2002-02-21 Caruso Jerome Carmel Cellular chair construction
US6877816B1 (en) * 1999-10-08 2005-04-12 Westmont Technik Gmbh & Co. Kg Adjusting device for beds, mattresses, seats and the like adjustable slatted bed-frames and adjustables seat or couch cushions
US6910736B2 (en) * 2001-06-14 2005-06-28 Factory Design Limited Seats with twistable seat elements
US20050275263A1 (en) * 2004-06-10 2005-12-15 Norman Christopher J Back construction with flexible lumbar
US20050275264A1 (en) * 2004-06-10 2005-12-15 Norman Christopher J Back construction with flexible lumbar
US20060033369A1 (en) * 2004-07-06 2006-02-16 Eysing Volker W Rest
EP1655010A2 (en) * 2004-11-05 2006-05-10 Meyra Wilhelm Meyer Gmbh & Co. Kg Chair with a seat and a back
US20060202534A1 (en) * 2005-03-08 2006-09-14 Heidmann Kurt R Seating with shape-changing back support frame
WO2007110737A2 (en) 2006-03-24 2007-10-04 Herman Miller Inc. Ergonomic seat
US20080067850A1 (en) * 2006-09-19 2008-03-20 Permobil Ab Backrest for a chair
WO2008054225A1 (en) * 2006-11-01 2008-05-08 Anders Berget Chair
US20090102268A1 (en) * 2007-09-20 2009-04-23 Johann Burkhard Schmitz Load support structure
US20090167072A1 (en) * 2007-12-26 2009-07-02 Dennis Cochran Occupational support system
US20090236887A1 (en) * 2007-09-18 2009-09-24 Shunjie Lu Back support for a seat
US20090250984A1 (en) * 2008-04-08 2009-10-08 Gm Global Technology Operations, Inc. Motor vehicle seat having a wing rest having cover plate and seating configuration having such a motor vehicle seat
US20090250983A1 (en) * 2008-04-08 2009-10-08 Gm Global Technology Operations, Inc. Motor vehicle seat with pivotable wing rests and seat arrangement with such a motor vehicle seat
US20090250985A1 (en) * 2008-04-08 2009-10-08 Gm Global Technology Operations, Inc. Motor vehicle seat with preloaded wing-rest and seat arrangement with such a motor vehicle seat
US20090250987A1 (en) * 2008-04-08 2009-10-08 Gm Global Technology Operations, Inc. Motor vehicle seat having lockable wing rest and seating configuration having such a motor vehicle seat
US20100072799A1 (en) * 2008-05-26 2010-03-25 Peterson Gordon J Conforming back for a seating unit
US20100289308A1 (en) * 2006-03-24 2010-11-18 Johann Burkhard Schmitz Seating Arrangement
US20120119551A1 (en) * 2010-11-11 2012-05-17 Faurecia Automotive Seating, Inc. Compliant shell for vehicle seat
DE102012015344A1 (en) * 2012-03-15 2013-03-14 Keiper Gmbh & Co. Kg Support structure for vehicle seat, has auxiliary frame that is operatively connected to backrest frame using lever, and drivable threaded spindle
US20130076092A1 (en) * 2011-09-26 2013-03-28 Faurecia Automotive Seating, Llc Vehicle seat backrest with flexural joint motion-control
US20130127220A1 (en) * 2010-07-15 2013-05-23 Ekornes Asa sitting arrangement
US20130241255A1 (en) * 2011-09-12 2013-09-19 Faurecia Automotive Seating, Inc. Controllable comfort shell for vehicle seat
USD696545S1 (en) 2013-07-30 2013-12-31 Steelcase, Inc. Rear surface of a chair back
DE102013205784A1 (en) * 2013-04-02 2014-10-02 Siemens Aktiengesellschaft Adjustable vehicle seat
US20140312676A1 (en) * 2011-12-21 2014-10-23 Jsp Corporation Seat back for vehicles
US20150091353A1 (en) * 2012-05-04 2015-04-02 Itoki Corporation Chair, especially, office chair
US20150130237A1 (en) * 2012-04-23 2015-05-14 Toyota Jidosha Kabushiki Kaisha Seat for moving body
US9332851B2 (en) * 2013-03-15 2016-05-10 Hni Technologies Inc. Chair with activated back flex
US9504331B2 (en) 2007-03-13 2016-11-29 Hni Technologies Inc. Dynamic chair back lumbar support system
DE102006008234B4 (en) 2006-02-22 2017-03-30 Volkswagen Ag Konturadaptiver vehicle seat
USD796883S1 (en) 2014-10-15 2017-09-12 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
US10064493B2 (en) 2014-04-17 2018-09-04 Hni Technologies Inc. Flex lumbar support
US10219627B2 (en) 2016-09-29 2019-03-05 Steelcase Inc. Compliant seating structure

Cited By (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753592A (en) * 1971-02-11 1973-08-21 C Jensen Lounge
US3877750A (en) * 1972-08-05 1975-04-15 Porsche Ag Reposing furniture
US3862454A (en) * 1972-08-26 1975-01-28 Icf De Padova S R L Divan having adjustable catenary and horizontal layout positions
US4182533A (en) * 1978-12-26 1980-01-08 Uop Inc. Seat backrest having an adjustable lumbar support
US4347840A (en) * 1980-10-27 1982-09-07 Orthotech, Incorporated Orthopedic correctional support system
US4484778A (en) * 1981-03-31 1984-11-27 University College London Shapeable matrix, and a chair using a matrix
US4585272A (en) * 1982-10-22 1986-04-29 Castelli S.P.A. Chair having a back comprising a plurality of articulated segments
US4601514A (en) * 1983-07-08 1986-07-22 Messrs. Willibald Grammer Seat having an adjustable back support arrangement
US4688853A (en) * 1983-07-11 1987-08-25 Watts Robert J Shape-defining articulated structures
EP0202386A2 (en) * 1985-05-17 1986-11-26 Zani Collezione Poltrone Di Zani Guiseppe An armchair structure having an adjustable anatomical configuration
EP0202386A3 (en) * 1985-05-17 1987-05-20 Zani Collezione Poltrone An armchair structure having an adjustable anatomical configuration
US4730872A (en) * 1985-07-22 1988-03-15 Goelzer Siegbert Bench with V-shaped slats
US4798414A (en) * 1987-01-13 1989-01-17 Vincent Hughes Physiotherapeutic chair like device
US4799732A (en) * 1987-10-06 1989-01-24 Okamura Corporation Chair seat inclining and moving device
US5975641A (en) * 1995-06-06 1999-11-02 Delesie; Patrick Undulatory motion relaxation device for furniture with a suspension system
US6089664A (en) * 1996-01-27 2000-07-18 Yoshida; Atsuo Support for backrest and seat of seat furniture
US6238001B1 (en) * 1996-09-30 2001-05-29 Amos Yoran Adjustable chair
US6394548B1 (en) 1997-10-24 2002-05-28 Steelcase Development Corporation Seating unit with novel seat construction
US5975634A (en) * 1997-10-24 1999-11-02 Steelcase Development Inc. Chair including novel back construction
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US7131700B2 (en) 1997-10-24 2006-11-07 Steelcase Development Corporation Back construction for seating unit
US6394545B2 (en) 1997-10-24 2002-05-28 Steelcase Development Corporation Back for seating unit
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US6749261B2 (en) 1997-10-24 2004-06-15 Steelcase Development Corporation Seating unit including novel back construction
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US6991291B2 (en) 1997-10-24 2006-01-31 Steelcase Development Corporation Back construction for seating unit having spring bias
US6905171B2 (en) 1997-10-24 2005-06-14 Steelcase Development Corporation Seating unit including novel back construction
US20050127729A1 (en) * 1997-10-24 2005-06-16 Knoblock Glenn A. Back construction for seating unit having spring bias
US5871258A (en) * 1997-10-24 1999-02-16 Steelcase Inc. Chair with novel seat construction
US20050179292A1 (en) * 1997-10-24 2005-08-18 Knoblock Glenn A. Back construction for seating unit having inverted U-shaped frame
US20050231013A1 (en) * 1997-10-24 2005-10-20 Knoblock Glenn A Back construction for seating unit
US7114777B2 (en) 1997-10-24 2006-10-03 Steelcase Development Corporation Chair having reclineable back and movable seat
US6877816B1 (en) * 1999-10-08 2005-04-12 Westmont Technik Gmbh & Co. Kg Adjusting device for beds, mattresses, seats and the like adjustable slatted bed-frames and adjustables seat or couch cushions
US20090096273A1 (en) * 2000-07-03 2009-04-16 Herman Miller, Inc. Body support structure having a molded elastomeric member
US7455365B2 (en) 2000-07-03 2008-11-25 Herman Miller, Inc. Seating structure having flexible support surface
US20050001464A1 (en) * 2000-07-03 2005-01-06 Herman Miller, Inc. Seating structure having flexible seating surface
US6726285B2 (en) * 2000-07-03 2004-04-27 Herman Miller, Inc. Cellular chair construction
US20060103222A1 (en) * 2000-07-03 2006-05-18 Caruso Jerome C Seating structure having flexible support surface
US7059682B2 (en) 2000-07-03 2006-06-13 Herman Miller, Inc. Seating structure having flexible seating surface
US20020021040A1 (en) * 2000-07-03 2002-02-21 Caruso Jerome Carmel Cellular chair construction
US7472962B2 (en) 2000-07-03 2009-01-06 Herman Miller Inc. Seating structure having flexible support surface
US7794022B2 (en) 2000-07-03 2010-09-14 Herman Miller, Inc. Body support structure having a molded elastomeric member
US6910736B2 (en) * 2001-06-14 2005-06-28 Factory Design Limited Seats with twistable seat elements
US20050275264A1 (en) * 2004-06-10 2005-12-15 Norman Christopher J Back construction with flexible lumbar
US7237841B2 (en) 2004-06-10 2007-07-03 Steelcase Development Corporation Back construction with flexible lumbar
US7458637B2 (en) 2004-06-10 2008-12-02 Steelcase Inc. Back construction with flexible lumbar
US20050275263A1 (en) * 2004-06-10 2005-12-15 Norman Christopher J Back construction with flexible lumbar
US7320503B2 (en) 2004-07-06 2008-01-22 Volker W. Eysing Backrest for seats and chairs having pressure and tensile elements
US20060033369A1 (en) * 2004-07-06 2006-02-16 Eysing Volker W Rest
EP1655010A3 (en) * 2004-11-05 2008-05-21 Meyra Wilhelm Meyer Gmbh & Co. Kg Chair with a seat and a back
EP1655010A2 (en) * 2004-11-05 2006-05-10 Meyra Wilhelm Meyer Gmbh & Co. Kg Chair with a seat and a back
US20060202534A1 (en) * 2005-03-08 2006-09-14 Heidmann Kurt R Seating with shape-changing back support frame
US7396079B2 (en) 2005-03-08 2008-07-08 Steelcase Inc. Seating with shape-changing back support frame
US7422287B2 (en) 2005-03-08 2008-09-09 Steelcase Inc. Seating with shape-changing back support frame
US7686399B2 (en) 2005-03-08 2010-03-30 Steelcase Inc. Seating with shape-changing back support frame
DE102006008234B4 (en) 2006-02-22 2017-03-30 Volkswagen Ag Konturadaptiver vehicle seat
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US20100289308A1 (en) * 2006-03-24 2010-11-18 Johann Burkhard Schmitz Seating Arrangement
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US8414073B2 (en) 2006-03-24 2013-04-09 Herman Miller, Inc. Seating arrangement
US20100117419A1 (en) * 2006-03-24 2010-05-13 Johann Burkhard Schmitz Seat
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US7992936B2 (en) * 2006-03-24 2011-08-09 Herman Miller, Inc. Seat
US20080067850A1 (en) * 2006-09-19 2008-03-20 Permobil Ab Backrest for a chair
WO2008054225A1 (en) * 2006-11-01 2008-05-08 Anders Berget Chair
US9504331B2 (en) 2007-03-13 2016-11-29 Hni Technologies Inc. Dynamic chair back lumbar support system
US7909402B2 (en) 2007-09-18 2011-03-22 Synergy Product Development, Inc. Back support for a seat
US20090236887A1 (en) * 2007-09-18 2009-09-24 Shunjie Lu Back support for a seat
US8967726B2 (en) 2007-09-20 2015-03-03 Herman Miller, Inc. Load support structure
US8282169B2 (en) 2007-09-20 2012-10-09 Herman Miller, Inc. Load support structure
US10016060B2 (en) 2007-09-20 2018-07-10 Herman Miller, Inc. Load support structure
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