[go: up one dir, main page]

US2619153A - Tilting chair - Google Patents

Tilting chair Download PDF

Info

Publication number
US2619153A
US2619153A US187878A US18787850A US2619153A US 2619153 A US2619153 A US 2619153A US 187878 A US187878 A US 187878A US 18787850 A US18787850 A US 18787850A US 2619153 A US2619153 A US 2619153A
Authority
US
United States
Prior art keywords
seat
base member
arms
chair
arm
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
US187878A
Other languages
English (en)
Inventor
Willem Van Osselen
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2619153A publication Critical patent/US2619153A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
    • 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
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting 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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity

Definitions

  • My present invention relates to chairs of the type wherein the seat is pivotally mounted, at or close to its front edge, upon a base member and adapted to be held by a spring member in normal, substantially horizontal position, said spring member being loaded when the seat is depressed so as to swing about its pivot.
  • chairs of this kind be of a character such that the seat is held in normal, i. e. unoccupied, substantially horizontal position as long as the person using the chair is sitting on the same in the normal and usual way, but that it is readily and smoothly tilted or tipped against the action of the spring member when said person shifts his center of gravity rearwards to lean back, so that the comfort of the person is best provided for.
  • a ohair comprising in combination a base member, a seat pivoted to the base member about a cross axis close to its front edge, and a spring member tending to hold.
  • the seat substantially horizontal is provided with at least one arm whose lower end is rotatably mounted upon the base member about an axis in parallel relation with the pivot of the seat and whose upper end is urged by the spring member into supporting engagement with the seat so as to assume a position wherein it has only a slight rearward deviation from the vertical when the seat is substantially horizontal, an abutment being provided preventng the arm from being moved by said spring member in forward direotion beyond said position.
  • Fig. 1 is a plan view of the base member of the char
  • Fig. 2 is a side elevational view of part of the base member and the seat, and
  • Fig. 3 is a somewhat diagrammatio side view, on a reduced scale, of the complete chair with a rearwardl leaning person sitting thereon.
  • the chair comprises a base member 4 supported by our casters 5 and accommodating a central, vertical spindle 6.
  • a cross-pece l Rigidly seoured to the top end of spindle 6 is a cross-pece l, to whose ends are rigidly secured two parallel supporting bars 8, 9 of equal lengths and extending in forward direotion.
  • the oiset ends of said bars are interoonneoted by a cross rod Hl rotatably supported in suitable bearings thereof.
  • Bod 10 in combnation with two rearwardly extending bars Il, I2 rigidly secured thereto, constitute the tiltable frame for supportng the seat I3 and the back [4 of the char.
  • Hinged to the bars 8, 9 in points spaced a small distance from the cross-piece 'l are arms [5, 16 adapted to swing about aligned axes parallel with rod
  • Each of said arms is provided, in addition to aroller I5a (I6a) pivoted thereto near its upper end and rotatable relative thereto about an axis parallel with rod
  • the projecting end of said screw is in threaded engagement with a nut 2! (22) having a milled head.
  • the sprngs Il, l8 can be tensioned so that the arms I5, I6, through their rollers 15a, 16a, are urged into engagement with the lower edges of bars II, 12 and thereby tend to swing the seat upwards about its pivot Ill.
  • I-Iowever when the seat assumes its normal, substantially horizontal position the hooks 1%, [62) of said arms engage abutments Ha, I2a provided on bars II, I2, thus positively preventing the seat from swinging upwards beyond normal position.
  • Fig. 2 the seat in normal position is shown in full lines. If, now, a person sits down in the chair in the usual way, the seat remains substantially horizontal, provided the springs IT, IS, have been suitably tensioned in accordance with the weight of said person. Sinoe, in this position of the seat, the arms [5, [6 are almost vertcal, it is obvious that the pull exerted b said springs on said arms need only be comparatively slight.
  • a tilting chair comprsng a base member, a seat having a front edge and pvotally mounted adjacent said front edge on said base member for swnging about a horizontal cross axis, a back rest rigidly secured to said seat, at least one upwardly directed arm pvotally mounted at its lower end on sad base member for swingng about an axs spaced rearwardly from said front edge and in a vertical plane dsposed at right ang1es to said horzontal cross axis, a spring member interconnecting sad base member wth said arm to resilently urge the latter in the direction towards said front edge of .the seat,

Landscapes

  • Chairs Characterized By Structure (AREA)
US187878A 1950-02-22 1950-10-02 Tilting chair Expired - Lifetime US2619153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL151829A NL68714C (de) 1950-02-22 1950-02-22

Publications (1)

Publication Number Publication Date
US2619153A true US2619153A (en) 1952-11-25

Family

ID=1821219

Family Applications (1)

Application Number Title Priority Date Filing Date
US187878A Expired - Lifetime US2619153A (en) 1950-02-22 1950-10-02 Tilting chair

Country Status (6)

Country Link
US (1) US2619153A (de)
BE (1) BE497986A (de)
CH (1) CH286426A (de)
GB (1) GB668617A (de)
LU (1) LU30315A1 (de)
NL (1) NL68714C (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936094A (en) * 1974-10-15 1976-02-03 William Arthur Conrad Lockable tilting chair with frictional tilt resistance
US4018415A (en) * 1976-01-13 1977-04-19 Herman Miller, Inc. Mechanism for tilting chairs
US4652050A (en) * 1984-01-11 1987-03-24 Herman Miller, Inc. Chair tilt mechanism
US4792187A (en) * 1986-06-07 1988-12-20 Simon Desanta Pivot mechanism for seats
US4796950A (en) * 1987-02-09 1989-01-10 Haworth, Inc. Tilt mechanism, particularly for knee-tilt chair
US4818019A (en) * 1987-02-09 1989-04-04 Haworth, Inc. Tilt control mechanism, particularly for knee-tilt chair
US4962962A (en) * 1987-01-09 1990-10-16 Voko Franz Vogt & Co. Piece of seating furniture
US5026117A (en) * 1987-11-10 1991-06-25 Steelcase Inc. Controller for seating and the like
US5042876A (en) * 1987-11-10 1991-08-27 Steelcase Inc. Controller for seating and the like
EP1419718A1 (de) * 2002-11-14 2004-05-19 Hodry Metallwarenfabrik R.Hoppe Ges.m.b.H & Co. KG Beschlag für Fernsehsessel
US9801471B2 (en) 2014-04-17 2017-10-31 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods
US11253077B2 (en) * 2016-12-21 2022-02-22 Kokuyo Co., Ltd. Chair with return force mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL85451C (de) * 1955-06-02 1957-06-15

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US240888A (en) * 1881-05-03 Tilting chair
US2447601A (en) * 1946-02-19 1948-08-24 Sikes Company Tilting chair seat and back rest

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US240888A (en) * 1881-05-03 Tilting chair
US2447601A (en) * 1946-02-19 1948-08-24 Sikes Company Tilting chair seat and back rest

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936094A (en) * 1974-10-15 1976-02-03 William Arthur Conrad Lockable tilting chair with frictional tilt resistance
US4018415A (en) * 1976-01-13 1977-04-19 Herman Miller, Inc. Mechanism for tilting chairs
US4652050A (en) * 1984-01-11 1987-03-24 Herman Miller, Inc. Chair tilt mechanism
US4792187A (en) * 1986-06-07 1988-12-20 Simon Desanta Pivot mechanism for seats
FR2618314A1 (fr) * 1986-06-07 1989-01-27 Kusch Co Sitzmoebel Mecanisme de basculement pour sieges reglables en hauteur
US4962962A (en) * 1987-01-09 1990-10-16 Voko Franz Vogt & Co. Piece of seating furniture
US4818019A (en) * 1987-02-09 1989-04-04 Haworth, Inc. Tilt control mechanism, particularly for knee-tilt chair
US4796950A (en) * 1987-02-09 1989-01-10 Haworth, Inc. Tilt mechanism, particularly for knee-tilt chair
US5026117A (en) * 1987-11-10 1991-06-25 Steelcase Inc. Controller for seating and the like
US5042876A (en) * 1987-11-10 1991-08-27 Steelcase Inc. Controller for seating and the like
US5160184A (en) * 1989-07-18 1992-11-03 Steelcase, Inc. Controller for seating and the like
EP1419718A1 (de) * 2002-11-14 2004-05-19 Hodry Metallwarenfabrik R.Hoppe Ges.m.b.H & Co. KG Beschlag für Fernsehsessel
US9801471B2 (en) 2014-04-17 2017-10-31 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods
US10455940B2 (en) 2014-04-17 2019-10-29 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods
US11253077B2 (en) * 2016-12-21 2022-02-22 Kokuyo Co., Ltd. Chair with return force mechanism

Also Published As

Publication number Publication date
BE497986A (de) 1950-09-30
LU30315A1 (de) 1951-05-25
GB668617A (en) 1952-03-19
CH286426A (fr) 1952-10-31
NL68714C (de) 1951-09-15

Similar Documents

Publication Publication Date Title
US2619153A (en) Tilting chair
US3741607A (en) Chair
US2670030A (en) Reclining article of furniture
US3292972A (en) Chair with a folding tablet arm and to a tablet arm unit of novel structure
US2764224A (en) Reclining chair with foot rest articulation
US2919746A (en) Reclining chair
US3367712A (en) Step stool-chair-table
US3235307A (en) Reclining chair
US1626069A (en) Reclining chair
GB785194A (en) Improvements in and relating to tilting chairs
US2927630A (en) Adjustable reclining chairs
US2965155A (en) Single standard stadium chair
US1731293A (en) Folding writing arm
US2681691A (en) Reclining chair
US2485387A (en) Krakora
US2139205A (en) Chair
US2767777A (en) Adjustable back in a dual purpose chair structure
US2545950A (en) Swivel chair iron
US2828802A (en) Combined tilting chair and foot rest
US2618313A (en) Reclining chair
US3492045A (en) Lever adjusting mechanism for reclining chairs
US2430577A (en) Adjustable reclining chair
US4125286A (en) Convertible chair
US903361A (en) Reclining-chair.
US2520741A (en) Swinging lawn chair