US3092417A - Orthopaedic seating device - Google Patents

Orthopaedic seating device Download PDF

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Publication number
US3092417A
US3092417A US845897A US84589759A US3092417A US 3092417 A US3092417 A US 3092417A US 845897 A US845897 A US 845897A US 84589759 A US84589759 A US 84589759A US 3092417 A US3092417 A US 3092417A
Authority
US
United States
Prior art keywords
seat
support
user
movement
orthopaedic
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
US845897A
Other languages
English (en)
Inventor
Drabert Fritz
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
Priority to DED29064A priority Critical patent/DE1152791B/de
Priority to BE575855A priority patent/BE575855A/fr
Application filed by Individual filed Critical Individual
Priority to US845897A priority patent/US3092417A/en
Priority to AT480160A priority patent/AT221250B/de
Priority to CH719260A priority patent/CH382395A/de
Priority to FR831752A priority patent/FR1261658A/fr
Application granted granted Critical
Publication of US3092417A publication Critical patent/US3092417A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools; Workshop stools
    • 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 mounted in a rigid frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit, elastically mounted in a rigid frame with a 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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/04—Stackable chairs or 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—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 frame
    • A47C7/441—Supports for the head or the back for the back with elastically-mounted frame with adjustable elasticity
    • 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 frame
    • A47C7/443—Supports for the head or the back for the back with elastically-mounted 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
    • 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 frame
    • A47C7/445—Supports for the head or the back for the back with elastically-mounted frame with bar or leaf springs
    • A47C7/4454—Supports for the head or the back for the back with elastically-mounted frame with bar or leaf springs of torsion type
    • 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
    • A47C7/48—Supports for the head or the back for the back of freely-rotatable type

Definitions

  • the present invention is based on the realisation that the aged-old problem of correct seat construction is solved when the following features are present:
  • the back-support described should serve not only for supporting the back but equally as an orthopaedic exercising device.
  • the anatomically formed back-support, reaching down as it does into the curved region of the loin should effect exercising of the back muscles for overcoming lordosis, and for the time being straightening the spine in the loin region when the user changes from the sitting to the reading position.
  • the device therefore provides not only a support for the back, but also therapy through movement.
  • the user is therefore capable himself of varying this pressure against the spinal vertebrae, that is to say to regulate it weaker or stronger.
  • the back-support and seat can to a large extent be adjusted with respect to one another. In this Way, it is possible to occupy dilferent sitting attitudes. This is important, since according to medical and physiological research into the best form of seating furniture a change of sitting attitude is desirable, and by prolonged use of a good seat, tired muscles can gradually be relieved.
  • the seat and back-support can be automatically co-ordinated in use.
  • the seat is not fixed, but at the same time is not floating, that is to say it is not movable laterally as in the case of many known forms of chair.
  • the seat is pivoted oscillating on a chassis support so that it can turn about a horizontal axis forwards and backwards. Accordingly the back-support which likewise oscillates about a horizontal axis adjusts itself to the user in response to a very slight pressure from the body and follows each movement.
  • FIGURES 5 and 6 show by way of example one embodiment in accordance with the invention in two different positions, namely the reading position in FIGURE 5 and the writing position in FIG- URE 6.
  • the seat a is inclined a comparatively long way back.
  • the pivotal axis b of the back-support c is fixed to the seat a, namely by the arm-supports d.
  • FIGURE 7 of the drawing shows an elevation, part in section, of a chair seat having below it, part cut away, an arrangement for adjusting the inclination of the seat, the inclined position of the seat being shown in broken lines;
  • FIGURE 10 is a section on the line XX of FIG- URE 9;
  • FIGURE 11 is a section on the line XI--XI of FIG- URE 9 and FIGURE 12 is a section on the line XII-XII of FIG- URE 11.
  • a part 21 of the spindle 20 is screw-threaded and adjustably supports a spring 3 plate 22.
  • two springs 23- press, the opposite ends of which rest on the plate 18-.
  • the springs 23 limit the inclination of the chair seat in the backward direction (that is the clockwise direction in -the drawing). -'I'h-is backward inclination is represented in FIGURE 7 by the broken lines.
  • the back-support 24 shown in FIGURES 9 to 12 is rotatably supported on the bolts 25 which are fastened to arms 26 formed by steel tubes which extend at a slight downward-inclination in the rearward direction and terminate at their rearward ends in pivots for the hack-support. These steel tubes thus constitute cantilever arms. It-will be evident that the horizontal pivotal axis of the back-support, which is adjacent the loin region of the user of the chair, lies in a-horizontal plane which intersects the arms 26 at a position forward of the back-support.
  • the normal position of the back-support 24 can be controlled by a leaf-type torsion spring 3 f which one end 27 is fastened to one of the bolts 25 and the other end rests in a forked metal plate 28 which is fixed to the back-support 24.
  • the pivotal movement of the backsupport is limited by a pin 29. Against this pin a finger 30 can rest, the finger being fastened to the non-rotatable bolt 25.
  • An orthopaedic seating device comprising in combination a seat, means for supporting the seat above the floor, means mounting said seat for pivotal movement about a stationary axis in a backward direction in response to a backward movement by the user and in a forward direction in response'to a forward movement by i the user, a back-support arranged toextend down into the loin region of the user and having a protrusion for fitting and supporting this region of the user, pivots sup- J porting said back-support'on a horizontal pivotal axis for backward tilting movement in response to the user leaning backwards and for forward tilting movement in resides of said seat. and-each comprising .a-first upwardlydirected portion, means rigidly securing said first portion to the seat, and a second rearwardly-directed portion integral with said first portion and supporting one of said back-support pivots.
  • each said rearwardly-directed. arm portion includes an upwardly-curved terminal portion, said pivot being located in said terminal portion.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs Characterized By Structure (AREA)
US845897A 1958-10-01 1959-10-12 Orthopaedic seating device Expired - Lifetime US3092417A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DED29064A DE1152791B (de) 1958-10-01 1958-10-01 Stuhl mit am Traggestell gegen Federkraft verschwenkbarem Sitz
BE575855A BE575855A (fr) 1958-10-01 1959-02-18 Siège orthopédique.
US845897A US3092417A (en) 1958-10-01 1959-10-12 Orthopaedic seating device
AT480160A AT221250B (de) 1958-10-01 1960-06-23 Orthopädisches Sitzgerät
CH719260A CH382395A (de) 1958-10-01 1960-06-24 Orthopädisches Sitzgerät
FR831752A FR1261658A (fr) 1958-10-01 1960-07-01 Siège orthopédique

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DED29064A DE1152791B (de) 1958-10-01 1958-10-01 Stuhl mit am Traggestell gegen Federkraft verschwenkbarem Sitz
US845897A US3092417A (en) 1958-10-01 1959-10-12 Orthopaedic seating device
AT480160A AT221250B (de) 1958-10-01 1960-06-23 Orthopädisches Sitzgerät
CH719260A CH382395A (de) 1958-10-01 1960-06-24 Orthopädisches Sitzgerät
FR831752A FR1261658A (fr) 1958-10-01 1960-07-01 Siège orthopédique

Publications (1)

Publication Number Publication Date
US3092417A true US3092417A (en) 1963-06-04

Family

ID=42320530

Family Applications (1)

Application Number Title Priority Date Filing Date
US845897A Expired - Lifetime US3092417A (en) 1958-10-01 1959-10-12 Orthopaedic seating device

Country Status (6)

Country Link
US (1) US3092417A (de)
AT (1) AT221250B (de)
BE (1) BE575855A (de)
CH (1) CH382395A (de)
DE (1) DE1152791B (de)
FR (1) FR1261658A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850594A (en) * 1971-07-16 1974-11-26 Summit Filter Corp Filtering method utilizing a double-wall filter bag construction
US3945651A (en) * 1974-05-31 1976-03-23 Paul Boswinkel Chair with independently pivotable seat cushion and back frame
US4529246A (en) * 1980-01-07 1985-07-16 Leib Roger K Patient chair
US4555139A (en) * 1982-04-15 1985-11-26 Leib Roger K Patient's defined-motion chair
US4784435A (en) * 1986-02-26 1988-11-15 Leib Roger K Patient chair
US4946224A (en) * 1988-03-21 1990-08-07 Leib Roger K Combination wood-metal chair
USD318578S (en) 1986-07-24 1991-07-30 Leib Roger K Plural seating unit
USD323250S (en) 1988-04-25 1992-01-21 Leib Roger K Arm chair
WO1997007717A1 (en) * 1995-08-30 1997-03-06 Formway Furniture Limited Improvements in/or relating to chairs
RU215181U1 (ru) * 2022-09-30 2022-12-01 Алексей Алексеевич Сибилев Ортопедический детский стульчик для занятий
US20220378208A1 (en) * 2019-06-17 2022-12-01 Quali Co., Ltd. Tilt chair

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3654765B2 (ja) * 1998-02-27 2005-06-02 由紀恵 高橋 着座具

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US478131A (en) * 1892-07-05 Arthur m
US704109A (en) * 1901-02-11 1902-07-08 Arthur M Richards Attachment for chairs.
US1150189A (en) * 1914-10-03 1915-08-17 Barney And Smith Car Company Chair.
US2027125A (en) * 1932-05-13 1936-01-07 Stoll Albert Reclining chair
US2139205A (en) * 1937-10-12 1938-12-06 Gen Fireproofing Co Chair
US2310346A (en) * 1939-12-26 1943-02-09 Heywood Wakefield Co Driver's chair
US2345926A (en) * 1942-06-03 1944-04-04 Posture Res Corp Back rest for chairs
US2420745A (en) * 1944-03-06 1947-05-20 Frank B Harman Posture chair
US2748835A (en) * 1955-02-07 1956-06-05 American Seating Co Chair with seat tilt adjustment
US2859801A (en) * 1956-09-17 1958-11-11 Edwin R Moore Geometric controller for chairs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE716060C (de) * 1939-12-01 1942-01-12 Erwin O Haberfeld Stuhl mit verstellbarer Rueckenlehne und in der Hoehe verstellbaren Armlehnen
FR948897A (fr) * 1947-06-26 1949-08-12 Fauteuil à suspension élastique et dossier à inclinaison automatique
US2830650A (en) * 1953-10-23 1958-04-15 Lorenz Anton Article of repose for supporting the body of a person

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US478131A (en) * 1892-07-05 Arthur m
US704109A (en) * 1901-02-11 1902-07-08 Arthur M Richards Attachment for chairs.
US1150189A (en) * 1914-10-03 1915-08-17 Barney And Smith Car Company Chair.
US2027125A (en) * 1932-05-13 1936-01-07 Stoll Albert Reclining chair
US2139205A (en) * 1937-10-12 1938-12-06 Gen Fireproofing Co Chair
US2310346A (en) * 1939-12-26 1943-02-09 Heywood Wakefield Co Driver's chair
US2345926A (en) * 1942-06-03 1944-04-04 Posture Res Corp Back rest for chairs
US2420745A (en) * 1944-03-06 1947-05-20 Frank B Harman Posture chair
US2748835A (en) * 1955-02-07 1956-06-05 American Seating Co Chair with seat tilt adjustment
US2859801A (en) * 1956-09-17 1958-11-11 Edwin R Moore Geometric controller for chairs

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850594A (en) * 1971-07-16 1974-11-26 Summit Filter Corp Filtering method utilizing a double-wall filter bag construction
US3945651A (en) * 1974-05-31 1976-03-23 Paul Boswinkel Chair with independently pivotable seat cushion and back frame
US4529246A (en) * 1980-01-07 1985-07-16 Leib Roger K Patient chair
US4555139A (en) * 1982-04-15 1985-11-26 Leib Roger K Patient's defined-motion chair
US4784435A (en) * 1986-02-26 1988-11-15 Leib Roger K Patient chair
USD318578S (en) 1986-07-24 1991-07-30 Leib Roger K Plural seating unit
US4946224A (en) * 1988-03-21 1990-08-07 Leib Roger K Combination wood-metal chair
US5071191A (en) * 1988-03-21 1991-12-10 Leib Roger K Combination wood-metal chair
USD323250S (en) 1988-04-25 1992-01-21 Leib Roger K Arm chair
WO1997007717A1 (en) * 1995-08-30 1997-03-06 Formway Furniture Limited Improvements in/or relating to chairs
AU749628B2 (en) * 1995-08-30 2002-06-27 Formway Furniture Limited Improvements in/or relating to chairs
US20220378208A1 (en) * 2019-06-17 2022-12-01 Quali Co., Ltd. Tilt chair
US12089741B2 (en) * 2019-06-17 2024-09-17 Quali Co., Ltd. Tiltable chair
RU215181U1 (ru) * 2022-09-30 2022-12-01 Алексей Алексеевич Сибилев Ортопедический детский стульчик для занятий
RU215179U1 (ru) * 2022-09-30 2022-12-01 Алексей Алексеевич Сибилев Нераздельный посадочный модуль для мебельного изделия
RU215180U1 (ru) * 2022-09-30 2022-12-01 Алексей Алексеевич Сибилев Ортопедический детский стульчик для занятий
RU231411U1 (ru) * 2024-10-14 2025-01-28 Алексей Алексеевич Сибилев Стул с вращаемым рычагом для механической регулировки высоты сиденья
RU233242U1 (ru) * 2024-10-14 2025-04-14 Алексей Алексеевич Сибилев Оснащенная шпиндельным механизмом опорно-каркасная часть предмета мебели для сидения

Also Published As

Publication number Publication date
CH382395A (de) 1964-09-30
AT221250B (de) 1962-05-10
DE1152791B (de) 1963-08-14
BE575855A (fr) 1959-06-15
FR1261658A (fr) 1961-05-19

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