US3902754A - Upholstered chair with adjustable seat and back supports - Google Patents

Upholstered chair with adjustable seat and back supports Download PDF

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Publication number
US3902754A
US3902754A US444750A US44475074A US3902754A US 3902754 A US3902754 A US 3902754A US 444750 A US444750 A US 444750A US 44475074 A US44475074 A US 44475074A US 3902754 A US3902754 A US 3902754A
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United States
Prior art keywords
seat
frame
chair
backrest
base
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
Application number
US444750A
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English (en)
Inventor
Egon F Braeuning
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.)
MillerKnoll Inc
Original Assignee
Herman Miller Inc
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Filing date
Publication date
Application filed by Herman Miller Inc filed Critical Herman Miller Inc
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Publication of US3902754A publication Critical patent/US3902754A/en
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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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs

Definitions

  • An upholstered chair with a tubular frame includes a tubular leg-supporting segment mounted to a base and a tubular seat frame pivotally coupled to the legsupporting segment rearwardly of its coupling to the base.
  • the seat frame extends rearwardly and upwardly and a length adjustable member is pivotally coupled at one end to the base and at an opposite end to the upper portion of the seat frame for tiltably adjusting the seat and back of the chair.
  • the tubular frame is spanned by an elastic material and filled with an elastic material.
  • An upholstery covering and filling material surrounds the frame structure so formed.
  • the invention relates to a chair with adjustable seat and back supports and with a frame made of steel tubing.
  • the purpose of the present invention is to provide a chair of the type mentioned above in which the upholstery is suspended practically self-contained between the segments of the framework, the latter being mutually adjustable for the purpose of varying the angle of the backrest.
  • the chair of the invention is characterized by the fact that the seat portion has a supporting framework composed of two segments which are tiltable with respect to each other and joined by hinge means in the two side segments of the supporting framework.
  • the upholstery of the seat portion is retained on one of the side segments of the supporting framework, over whose entire length there is elastic tension.
  • the frame segment corresponding to the upper leg support is securely attached to the seat frame while the segment corresponding to the seat and back support is connected to the seat frame by pivotal and length variable means.
  • FIG. 1 is a side view of the chair showing two extreme positions of the seat and back supports;
  • FIG. 3 is a perspective view of the supporting frame of the seat portion of the chair of FIG. I.
  • FIG. 4 is an enlarged fragmentary view partly in cross section showing the connection between the upper leg support and the scat frame.
  • a seat frame or base 1 is made of steel tubing, in which a seat portion 2 is mounted or suspended.
  • This seat portion consists essentially of an upper leg unit 3 which extends from the left end of the structure to the region of the tilting point 4, a seating unit 5 which begins to the right of tilting point 4 and extends to the lower end of the back unit 6, and a headrest 7 on the upper end of the back unit 6.
  • the segment of seat 2 containing the seating, backand headrest units is held at a certain height by a supporting device 8 adjustable as to its length, and is pivoted as a whole about point 4.
  • FIG. 2 is a perspective view of the seat frame 1 shown in FIG. 1.
  • this frame is made of steel tubing and is composed of one or more parts.
  • the two practically circular vertical loop members 11 are also tubular. Members 11 are located generally inside the base framework and include elbows 12 for supporting the seat 2 in the region of the upper segment 3.
  • the rear segment 13 of the piping joining the two sides has a pivot coupling 14 pivotally coupling the lower end of supporting member 8 to frame 1. Details of the connection between the seat frame 1 and the supporting frame of the seat are shown in FIG. 4. i
  • the supporting framework for the seat portion consists of twoside pieces l6, 17 (FIG. 3), which preferably are made of steel tubing, each having a hinged segment 18, 19 which make possible the tilting of the back portion with respect to the upper leg unit 3.
  • Hinges 18, 19 are located at the pivot point 4 and are conventional pivot members permitting pivoting of members 16 and 17 with respect to mem bers 16' and17' respectively.
  • the .two side pieces l6, 17 are connected by cross pieces 20, 21 and 22 and secured toa bent frame.
  • the segmentslfiand 17' at the front of the side pieces l6, 17 are provided with couplings 23 and 24, respectively, for example, in the form of stud bearings which cooperate with the side pieces or elbows 12 on the seat frame.
  • the cross piece 22 in the region of the top ends of the side pieces has a pivot coupling 25 pivotally coupling the upper end of support 8 to member 22.
  • l1 designates a section of the tube 11, shown entirely in FIG. 2 as the frame 1 0f the seat, and 12 designates in this figure the seat supporting means.
  • the latter consists of an arm 31 and an angle piece 32 with a centering lug 33.
  • the number 34 designates a part of the upholstering of seat 2
  • 16 is the similarly designated front part of a side member of the seat-supporting frame.
  • Connected to the front part 16 is a pivot bearing 35 whose bore 36 serves to receive the centering lug 33.
  • the seat portion 2 is, therefore, in one piece by means of the supporting section 12 and the couplings 23, 24 and, on the other hand, is joined by the device 8 and the couplings 12 and 14 in such a manner as to be variable with respect to the seating frame.
  • the number 38 designates an elastic covering which as shown is applied to the side pieces 16, 17 (FIG. 3).
  • This material is preferably of a rubber band or rubber cord fabric which had been formed into a hose or tubing and pulled over the entire length of the side pieces 16, 17.
  • the interspace 39 is filled with an elastic material.
  • foam material 40 which consists of shaped foam in which the foam material can be eliminated at any point.
  • the upholstery covering 41, 42 forms the outer seal of the upholstery. It can be the same material above and below or the two can be of different materials.
  • the coverings of the upper and lower sides are joined to one another at the side of the seat by means of a closure 43 such as a zipper.
  • a chair By means of the frame structure 15, as described in FIG. 3, and the arrangement of the upholstery, especially the covering 38, a chair can be made which will meet modern demands.
  • the seating surface is subjected to a load by the user, there is never a sharp ridge or break at the tilting point 4, as shown in FIG. 1, but there is a tilting corresponding to the contour of the body so that at all positions of the seat, backrest and headrest, there is a shortening or lengthening of the supporting structure 8 to correspond to the contour of the body.
  • a chair comprising:
  • a base including support means extending upwardly from opposite sides thereof;
  • a frame including a frontal portion and a rearward portion, said frontal portion defining the front part of a seat and mounted to said support means; a rearwardly and upwardly extending frame member forming said rearward portion and defining a backrest and the rearward part of a seat said rearward portion being pivotally coupled to said frontal portion;
  • an extensible and collapsible link pivotally coupled at one end to said base and at the'opposite end to said rearward portion near the top of said backrest to permit tilting adjustment of the chair by pivoting the rear part of said seat and said backrest as a unit about its pivotal connection to said front part of said seat;
  • a chair having a seat and a back, said back being integral with the rear of said seat, a base for said chair, the improvement in said chair comprising: said seat having a rigid frame hingedly jointed at a point substantially removed from the front thereof dividing said seat into a forward portion and rear portion a backrest rigidly attached to said rear portion of said seat and extending upwardly therefrom; said rear portion of said seat and said backrest being pivotal as a unit about the rear of the forward portion of said seat; said forward portion of said seat being rigidly secured to said base; means adjustably supporting said rear portion of said seat and said backrest.
  • said frame having a generally U-shaped rearward portion and a generally U-shaped forward portion and an upstanding loop on each side between and joining said forward and rearward portions and integral with both said forward and rearward portions; said juncture between said forward seat portion and said base being located on said loop.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs Characterized By Structure (AREA)
US444750A 1973-08-20 1974-02-22 Upholstered chair with adjustable seat and back supports Expired - Lifetime US3902754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1194573A CH568738A5 (zh) 1973-08-20 1973-08-20

Publications (1)

Publication Number Publication Date
US3902754A true US3902754A (en) 1975-09-02

Family

ID=4378379

Family Applications (1)

Application Number Title Priority Date Filing Date
US444750A Expired - Lifetime US3902754A (en) 1973-08-20 1974-02-22 Upholstered chair with adjustable seat and back supports

Country Status (4)

Country Link
US (1) US3902754A (zh)
CH (1) CH568738A5 (zh)
DE (1) DE2434104C3 (zh)
FR (1) FR2241277A1 (zh)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005903A (en) * 1974-09-06 1977-02-01 Albert Jenni Seat with an adjustable back
US20100176633A1 (en) * 2009-01-12 2010-07-15 Faurecia Automotive Seating, Inc. Vehicle seat pad
US20100207443A1 (en) * 2009-02-19 2010-08-19 Faurecia Automotive Seating, Inc. Vehicle seat cushion with inflatable air bladder
US20110227389A1 (en) * 2010-03-22 2011-09-22 Faurecia Automotive Seating, Inc. Vehicle seat cushion with integrated ventilation
US20120280554A1 (en) * 2009-12-02 2012-11-08 Faurecia Automotive Seating, Inc. Vehicle seat cushion with inflatable support
US20160235203A1 (en) * 2015-02-12 2016-08-18 Wilkhahn Wilkening + Hahne Gmbh + Co. Seating furniture product
CN107007055A (zh) * 2016-01-28 2017-08-04 郑雪峰 一种依靠弹性调节靠背角度的椅架
US20190374035A1 (en) * 2018-06-08 2019-12-12 Series International, Llc Chair Frame With Injection Molded Foam Padding

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031881C2 (de) * 1980-08-23 1985-06-20 Lutz, Friedrich, 7100 Heilbronn Schaukelstuhl
US4560199A (en) * 1983-07-22 1985-12-24 Pamont Ag Recliner chair
FR2565802B1 (fr) * 1984-06-19 1987-07-10 Orthopedique Realisa Assi Cent Siege dont la partie d'assise presente une premiere partie, sensiblement horizontale, et une seconde partie, inclinee vers le bas, qui est raccordee au dossier
US5224760A (en) * 1992-01-07 1993-07-06 Shin Yeh Enterprise Co., Ltd. Detachable lawn chair
WO1998016140A1 (de) * 1996-10-14 1998-04-23 Protoned B.V. Rahmenkonstruktion, stellmechanik und polsterbezug für einen stuhl
US6557939B1 (en) 1998-10-21 2003-05-06 Vitra Patente Ag Adjustment mechanism, back cover and arm rest for a chair
DE102016108253A1 (de) * 2016-05-03 2017-11-09 GARDAMO GmbH & Co. KG Sitzmöbel mit einem Rohrrahmen mit Geflechtbespannung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713890A (en) * 1953-12-07 1955-07-26 Holbrook Merrill Co Folding chair
US3150898A (en) * 1962-12-31 1964-09-29 Knudson William Lewis Dental patients' reclining chair
US3712666A (en) * 1969-12-17 1973-01-23 Giroflex Entwicklungs Ag Chair

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713890A (en) * 1953-12-07 1955-07-26 Holbrook Merrill Co Folding chair
US3150898A (en) * 1962-12-31 1964-09-29 Knudson William Lewis Dental patients' reclining chair
US3712666A (en) * 1969-12-17 1973-01-23 Giroflex Entwicklungs Ag Chair

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005903A (en) * 1974-09-06 1977-02-01 Albert Jenni Seat with an adjustable back
US8328279B2 (en) 2009-01-12 2012-12-11 Faurecia Automotive Seating, Llc Vehicle seat pad
US20100176633A1 (en) * 2009-01-12 2010-07-15 Faurecia Automotive Seating, Inc. Vehicle seat pad
US20100207443A1 (en) * 2009-02-19 2010-08-19 Faurecia Automotive Seating, Inc. Vehicle seat cushion with inflatable air bladder
US9278633B2 (en) 2009-12-02 2016-03-08 Faurecia Automotive Seating, Inc. Vehicle seat cushion with inflatable support
US20120280554A1 (en) * 2009-12-02 2012-11-08 Faurecia Automotive Seating, Inc. Vehicle seat cushion with inflatable support
US8827371B2 (en) * 2009-12-02 2014-09-09 Faurecia Automotive Seating, Llc Vehicle seat cushion with inflatable support
US8672411B2 (en) 2010-03-22 2014-03-18 Faurecia Automotive Seating, Llc Vehicle seat cushion with integrated ventilation
US20110227389A1 (en) * 2010-03-22 2011-09-22 Faurecia Automotive Seating, Inc. Vehicle seat cushion with integrated ventilation
US20160235203A1 (en) * 2015-02-12 2016-08-18 Wilkhahn Wilkening + Hahne Gmbh + Co. Seating furniture product
US9700138B2 (en) * 2015-02-12 2017-07-11 Wilkhahn Wilkening + Hahne Gmbh + Co. Seating furniture product
CN107007055A (zh) * 2016-01-28 2017-08-04 郑雪峰 一种依靠弹性调节靠背角度的椅架
US20190374035A1 (en) * 2018-06-08 2019-12-12 Series International, Llc Chair Frame With Injection Molded Foam Padding
US10588414B2 (en) * 2018-06-08 2020-03-17 Series International, Llc Chair frame with injection molded foam padding
US10835045B2 (en) 2018-06-08 2020-11-17 Series International, Llc Chair frame with injection molded foam padding
US11457744B2 (en) 2018-06-08 2022-10-04 Series International, Llc Chair frame with injection molded foam padding

Also Published As

Publication number Publication date
DE2434104C3 (de) 1980-02-21
FR2241277A1 (en) 1975-03-21
DE2434104B2 (de) 1979-06-21
DE2434104A1 (de) 1975-02-27
FR2241277B3 (zh) 1977-06-03
CH568738A5 (zh) 1975-11-14

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