[go: up one dir, main page]

WO1988004903A1 - Chaise - Google Patents

Chaise Download PDF

Info

Publication number
WO1988004903A1
WO1988004903A1 PCT/AU1986/000396 AU8600396W WO8804903A1 WO 1988004903 A1 WO1988004903 A1 WO 1988004903A1 AU 8600396 W AU8600396 W AU 8600396W WO 8804903 A1 WO8804903 A1 WO 8804903A1
Authority
WO
WIPO (PCT)
Prior art keywords
body support
configuration
support member
frame
chair
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.)
Ceased
Application number
PCT/AU1986/000396
Other languages
English (en)
Inventor
Robert Craig Hart
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
Priority to PCT/AU1986/000396 priority Critical patent/WO1988004903A1/fr
Publication of WO1988004903A1 publication Critical patent/WO1988004903A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
    • A47C9/005—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects with forwardly inclined seat, e.g. with a knee-support
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C13/00—Convertible chairs, stools or benches

Definitions

  • CHAIR This invention relates to "chairs" or body support devices and particularly but not exclusively to chairs or body support devices capable of being from one "seating" configuration to another.
  • the chair or body support device is capable of being altered from a conventional seating configuration to a semi-kneeling configuration.
  • Conventional chairs or body support devices are well known. Such devices include a base, a "seat” portion and a back rest. In such conventional chairs, the weight of a user is almost solely supported by the seat portion of the chair with little or no support being provided by the back rest. It is known that such chairs can result in fatigue or backache, particularly in the lower back region, due to the fact mentioned above that the majority of the weight of the user is transmitted to the seat by the posterior or buttocks, or both of the user.
  • chairs or body support devices may be made in which the weight of the user is distributed between a seat portion supporting the posterior of the user and a kneeling pad which supports the knees and/or shins of the user.
  • the seat portion of the chair is disposed at an angle of about 30° to a conventional "seating" disposition, and a knee pad, disposed at an appropriate angle, is provided in front of and below the "seating" portion.
  • Such “semi-kneeling" chairs or body support devices are claimed to reduce fatigue when in use (compared to conventional chairs or body support devices) as the spine of the user assumes a more natural configuration and the weight distribution of the user is not solely cetered, through the posterior and/or buttocks of the user, on the "seating" portion of the chair or body support device.
  • Such "semi-kneeling" chairs or body support devices suffer from the disadvantage that they are, for some prospective users, initially uncomfortable and difficult to adjust to, due to the somewhat different weight distribution experienced during the use of such devices. Whilst beneficial results are claimed to be obtained by use of such devices, full benefit of such advantages may not be gained if a prospective user finds difficulty in becoming accustomed to such semi-kneeling chairs or body support devices. Indeed such, an alleged beneficial seating device may well be discarded.
  • the present invention seeks to overcome the disadvantages of presently known semi-kneeling chairs or body support devices by providing a chair or body support device which is readily convertible from a conventional sitting configuration to a semi-kneeling configuration.
  • the present invention therefore provides a chair or body support device, adjustable from a first or conventional seating configuration in which a first body support means is adapted to support the posterior of a user and a second body support means is adapated to support the back of the user, to a second or semi-kneeling configuration in which the first body support means is adapated to support the posterior of the user and the second body support means is adapated to support the knees and/or shins of the user, and in which the angular disposition of the first body support means in the first configuration is different from the angular disposition of the first body support means in the second configuration.
  • Fig. 1 shows a chair in a first configuration, having a back support and a seat portion
  • Fig. 2 shows the chair of Fig. 1 in a second configuration having a seat portion and a knee or shin supporting portion;
  • Fig. 3 shows an alternative construction of chair or body support device in accordance with the invention showing the device in perspective in (a) the first configuration and (b) the second configuration.
  • Fig. 4 shows the chair or body support device of Fig. 3 in side elevation, again in the first configuration (a) and the second configuration (b).
  • a chair 10 disposed in a conventional seating configuration, having a base or frame 11, a first support or seat means 12, and a second support means 13.
  • the base 11 ' comprises a flat steel bar, formed as by bending to provide a substantially horizontal section 14, a substantially vertical section 15, an inclined seat supporting section 16, a substantially horizontal seat support section 17 and an inclined second support means section 18.
  • the frame 11 also includes two or more other horizontal sections 19 disposed to stabilize and support the chair.
  • the substantially horizontal section 14 and the two or more other horizontal support sections 19 may include feet or castors 20 as desired.
  • the first support or seat means 12 comprises seat 21 fixed to seat support frame 22 in the form of a steel bar bent to include set support end 23.
  • the second support means 13 comprises second support 24 fixed to second support frame 25 in the form of a steel bar bent to include second support end 26.
  • Inclined second support section 18 has fixed thereon steel stirrups 27 adapted to releasably engage and hold second support end 26.
  • Inclined seat support section 17 has fixed thereon steel stirrups 28 adapted to releasably engage and hold seat support end 23 in a first configuration as shown.
  • a chair in accordance with this embodiment may readily be converted from a chair of conventional configuration to a chair of semi-kneeling configuration and vice versa.
  • FIGs. 3 and 4 there is shown a chair of similar construction to the chair of Figs. 1 and 2.
  • the only difference between the chair of Figs. 1 and 2 on the one hand and Figs. 3 and 4 on the other hand is the method of attachment of the various parts.
  • the first support or seat means and second support means may include padded sections as shown, however, this is not essential.
  • the base or frame of the chair of the invention and the first or second support bars are preferably made from a flat steel bar but may be made of any suitable material as may be desired.
  • the frame members may be made of flat bar shaped suitable synthetic plastics material or the flat bar may be replaced by appropriately formed circular or non-circular tubular members.
  • the method of attachment. of various releasably attached and "movable" parts is not particularly important to the performance of the invention.
  • a chair 50 having a base 51 including a front base section 52 and rear base section 53 formed from tubular steel and joined such as by welds 54.
  • the front base section comprises forwardly directed feet sections 55 substantially vertical leg sections 56 and forwardly directed substantially U-shaped upper section 57 having a substantially horizontal front seat support rail 58.
  • the rear base section similarly comprises rearwardly directed feet sections 59, upwardly directed leg sections 60 and rearwardly directed substantially U-shaped upper section 61 having a substantially horizontal rear seat support rail 62.
  • Seat 63 is supported substantially horizontally on front 58 and rear 62 support rails and is pivotally connected by a hinge or hinges to front rail 58.
  • rear base section feet 59 may be joined by further tubular rear rail 64. It wil be seen that in this preferred form the rear base section may be formed from a single tubular steel member appropriately formed and joined at its ends such that the rear base section forms a continuous "loop" of tubular steel material. Similarly (although not shown) the front base section may form a continuous "loop" of tubular steel material. The embodiment as shown however shows the front base section terminating at the ends of the feet 55 remote from legs 56. Thus it will be seen that the base 51 supports seat
  • the back rest or second support means 64 of the chair in its normal or first configuration (or the knee or shin rest of the chair in its semi-kneeling or second configuration) comprises a pad 65 held within a U- shaped tubular position 66 of the pivoting support 66.
  • the pivoting support 66 includes the tubular portion 66, arm rests 67, rest portions 68, pivot leg sections 69 joined by second configuration seat support rail 70.
  • the pivoting support is pivotally fixed to the base by means of pivots 71.
  • seat 63 is substantially horizontal and second support 64 is disposed above and behind the seat 63 to support the back of a person occupying the chair. It will be seen that the posterior of the occupant is supported by the upper face of seat 63.
  • the second support is pivotable about pivots 71 and in the first configuration the second support is prevented from pivoting beyond a normal seat configuration by abutment of second seat support rail against the rear base section feet 59. Excess pivotal movement in the direction of arrow A of Fig. 4(a) is thus prevented.
  • Appropriate manipulation of the second support in a direction opposite to arrow A causes the second support to rotate about pivots 71.
  • Rail 70 approaches the second or semi-kneeling configuration it contacts and bears upon the rear of the underside of seat 63 causing it to pivot about the hinge as previously described until such time as rail 70 is abutting the floor on which the chair 50 is placed.
  • Seat 63 is thus raised at the rear to an angle of abut 30° to the horizontal and supported in that position by rail 70 when occupied by a user in the second or semi- kneeling position.
  • pivoting support are so constructed to permit case of access to the device in the second configuration.
  • rest portions 68 of the upper pivoting support between "the arm rests 67 and the pivot leg sections 69 are so formed as to rest along the floor on which the device is situated when the device is in the second configuration.
  • this preferred feature whilst not essential does allow ready access by a user to the device when in the second configuration by providing clear space or access area 72 for the feet of the user.
  • the device preferably has plastics material sleeves or inserts 73 on the underside of the front and rear feet sections of the base to provide a base for the device or on the top of rear feet to provide a base for the rail 70 to rest upon when the chair is in the first configuration.
  • the underneath of the rear of the seat 63 includes lug 74 to prevent accidental sudden pivoting of the device from the second to the first configuration if pressure is applied in the direction of arrow B of Figure 4(b) as by application of the posterior of a person in a manner not intended.
  • the device may be readily converted from the second to the first configuration by merely lifting upper section 64 and allowing it to return, by pivotal motion to the first configuration. Operation of the device from or to either configuration may be assisted by provision of a spring or other biasing means which operates on an "over centre” locking principle so that the device is biassed by the spring or other means to either the first or second configuration once a "centre" point in the travel from one to another configuration is reached.
  • the second support means may be of substantially triangular transverse cross- section to provide the appropriate angles between the back support face 75 and the knee or shin support face 76.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

Une chaise ou un appareil pour s'asseoir est convertible à partir d'une position de siège traditionnel comportant un siège et un dossier en une position de semi-agenouillement comportant un siège incliné et un support pour le genou ou le tibia. Ledit appareil pour s'asseoir comprend de préférence un organe à pivot destiné à permettre la conversion simple d'une position à l'autre.
PCT/AU1986/000396 1985-10-07 1986-12-24 Chaise Ceased WO1988004903A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/AU1986/000396 WO1988004903A1 (fr) 1985-10-07 1986-12-24 Chaise

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH278085 1985-10-07
PCT/AU1986/000396 WO1988004903A1 (fr) 1985-10-07 1986-12-24 Chaise

Publications (1)

Publication Number Publication Date
WO1988004903A1 true WO1988004903A1 (fr) 1988-07-14

Family

ID=25640606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1986/000396 Ceased WO1988004903A1 (fr) 1985-10-07 1986-12-24 Chaise

Country Status (1)

Country Link
WO (1) WO1988004903A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4015841A1 (de) * 1990-05-17 1991-11-21 Hans Prof Roericht Mehrzweckstuhl
DE4234883C1 (de) * 1992-10-16 1994-04-21 Pius Ponticelli Stuhl
EP1733648A1 (fr) * 2005-06-17 2006-12-20 Pro-Cord S.P.A. Chaise convertible en chaise longue
US7252336B2 (en) * 2001-11-06 2007-08-07 Matthew Stephen Frisina Pivotable boat seat
US7293825B2 (en) * 2004-09-10 2007-11-13 Advantage Branch & Office Systems, Llc Multi-position chair
US7887136B2 (en) * 2007-08-16 2011-02-15 Stefan Zoell Device for supporting a human body in various positions
US7946972B2 (en) 2006-08-28 2011-05-24 Gayo Labs Ltd. Adjustable chair for accommodating multiple body positions and methods of use thereof
RU2497427C1 (ru) * 2012-04-28 2013-11-10 Сергей Александрович Чувилов Ортопедический стул
US20240041215A1 (en) * 2020-12-17 2024-02-08 Runnerfly Ltd Convertible chair

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000275A1 (fr) * 1983-07-08 1985-01-31 Mengshoel Hans Chr Siege et son utilisation
GB2171005A (en) * 1985-02-18 1986-08-20 Mengshoel Hans Chr Device for use in a kneeling-like sitting position

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000275A1 (fr) * 1983-07-08 1985-01-31 Mengshoel Hans Chr Siege et son utilisation
GB2171005A (en) * 1985-02-18 1986-08-20 Mengshoel Hans Chr Device for use in a kneeling-like sitting position

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4015841A1 (de) * 1990-05-17 1991-11-21 Hans Prof Roericht Mehrzweckstuhl
DE4234883C1 (de) * 1992-10-16 1994-04-21 Pius Ponticelli Stuhl
US7252336B2 (en) * 2001-11-06 2007-08-07 Matthew Stephen Frisina Pivotable boat seat
US7293825B2 (en) * 2004-09-10 2007-11-13 Advantage Branch & Office Systems, Llc Multi-position chair
US7357315B2 (en) 2004-09-10 2008-04-15 Advantage Branch & Office Systems, Llc Customer interaction console and configurable console system
EP1733647A1 (fr) * 2005-06-17 2006-12-20 Pro-Cord S.P.A. Chaise convertible en chaise longue
EP1733648A1 (fr) * 2005-06-17 2006-12-20 Pro-Cord S.P.A. Chaise convertible en chaise longue
US7387332B2 (en) 2005-06-17 2008-06-17 Pro-Cord Spa Chair convertible into chaise-longue
US7946972B2 (en) 2006-08-28 2011-05-24 Gayo Labs Ltd. Adjustable chair for accommodating multiple body positions and methods of use thereof
US7887136B2 (en) * 2007-08-16 2011-02-15 Stefan Zoell Device for supporting a human body in various positions
RU2497427C1 (ru) * 2012-04-28 2013-11-10 Сергей Александрович Чувилов Ортопедический стул
US20240041215A1 (en) * 2020-12-17 2024-02-08 Runnerfly Ltd Convertible chair
US12414632B2 (en) * 2020-12-17 2025-09-16 Runnerfly Ltd Convertible chair

Similar Documents

Publication Publication Date Title
JP3162325B2 (ja) 背もたれおよび座席の調整が連動している、腰掛け用家具部材
US4650249A (en) Ergonomic seating assembly system with front chest support component, pelvic tilt seat component and related attachments
US5536067A (en) Chair
EP0163437B1 (fr) Chaise
CA1287291C (fr) Chaise therapeutique pouvant etre convertie pour l'adapter a diverses positions
EP1453461B1 (fr) Structures de support du torse
JP3255592B2 (ja) 背もたれおよび座席の調整が連動している、腰掛け用家具部材、および接続補強材
EP0017450B1 (fr) Dispositif d'assise
US6923503B2 (en) Chair with movable seat and backrest
US4632455A (en) Chair with occupant assisting features
US7497515B2 (en) Ergonomic chair
US2272980A (en) Chair construction
JPS5929244B2 (ja) 調節自在背付椅子
JPS61113412A (ja) 椅子
EP0592409A1 (fr) Fauteuil pour personnes handicapees.
JPH0614884B2 (ja) 椅子例えば複合椅子における配置
CA2383399A1 (fr) Dispositif de soutien du torse et de l'avant-bras pour fauteuils, postes de montage et autres du meme genre
EP0941679B1 (fr) Mécanisme de basculement et de glisse
WO1988004903A1 (fr) Chaise
US5213395A (en) Adjustable seating assembly
US2702074A (en) Chair
EP0320478A1 (fr) Chaise réglable
US5599061A (en) Seat for sitting in the middle position
AU640409B2 (en) Improved adjustable seating assembly
GB2359740A (en) Hand or arm operated rocking chair

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): DK FI JP KR NO US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT DE FR GB IT NL SE