WO2006008473A1 - Chair - Google Patents

Chair Download PDF

Info

Publication number
WO2006008473A1
WO2006008473A1 PCT/GB2005/002765 GB2005002765W WO2006008473A1 WO 2006008473 A1 WO2006008473 A1 WO 2006008473A1 GB 2005002765 W GB2005002765 W GB 2005002765W WO 2006008473 A1 WO2006008473 A1 WO 2006008473A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat portion
support means
chair
locking
sleeve
Prior art date
Application number
PCT/GB2005/002765
Other languages
French (fr)
Inventor
Anthony Edwin Hill
Kenneth Paul Poberezny
Bruce James Renfrew
Original Assignee
Anthony Hill Designs Limited
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 Anthony Hill Designs Limited filed Critical Anthony Hill Designs Limited
Priority to CA002573792A priority Critical patent/CA2573792A1/en
Priority to JP2007520893A priority patent/JP2008506438A/en
Priority to AU2005263919A priority patent/AU2005263919A1/en
Priority to US11/632,579 priority patent/US20080136238A1/en
Priority to EP05759711A priority patent/EP1778052A1/en
Publication of WO2006008473A1 publication Critical patent/WO2006008473A1/en

Links

Classifications

    • 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
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/34—Chairs or stools with vertically-adjustable seats with pins coacting with holes or bolt-and-nut adjustment

Definitions

  • the present invention relates to a chair or other such object for supporting a user in a seated position.
  • a chair comprising a seat portion for enabling a user to sit on the chair; support means for supporting the seat portion; characterised in that the seat portion is movable between a plurality of different height positions on the support means, and in which the seat portion includes locking means adapted for engagement with and disengagement from the support means at each height position, by rocking the seat portion relative to the support means, wherein the seat portion is locked relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
  • the support means includes a plurality of locating formations spaced apart from one another, the locating formations corresponding generally to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
  • the seat portion includes sleeve means adapted for receiving aportion of the support means for enabling the seat portion to be raised or lowered on said portion of the support means.
  • the sleeve means are configured for rocking movement relative to said portion of the support means.
  • the locking means are provided on the sleeve means, and may be arranged for movement with the sleeve means.
  • the locking means comprises pin means.
  • the support means defines apair of legs, each leg including a plurality of spaced apart apertures along apportion of the leg, the position of the apertures generally corresponding to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
  • the seat portion is arranged between the sleeve formations.
  • the support means is generally S-shaped when viewed from the side, and may be adapted for nestling with a plurality of said support means.
  • Figure 1 is a schematic perspective view showing a preferred embodiment of chair in accordance with the present invention
  • Figure 2 is a schematic front view of the chair shown in Figure 1;
  • Figure 3 is a schematic side view of a chair similar to the chair shown in Figures 1 and 2;
  • Figure 4 is an exploded part cross-sectional view of the area encircled in Figure 3 , showing the seat portion in an engaged condition;
  • Figure 5 is a view similar to Figure 4, showing the seat portion in a disengaged condition.
  • a chair according to a preferred embodiment of the invention is indicated generally at 10.
  • the chair 10 includes a seat portion 12 for supporting a user (not shown) in a seated position, the seat portion 12 being received on a support means in the form of tubular frame, indicated at 14.
  • Sleeve-type formations 16 are provided on either side of the seat portion 12, as can be seen in Figure 2, either formed integrally with the remainder of the seat portion 12 or attached thereto.
  • the tubular frame 14 defines a base 17 and a pair of legs 18.
  • the chair 10 is configured such that the seatportion 12 canbe received on the frame 14, with the upper ends of the legs 18 extendingup through the sleeve formations 16.
  • stabiliser means 19 are provided at the base 17 of the frame 14, which add stability to the chair 10 when placed on a planar surface such as a floor or the like.
  • FIG 3 a chair virtually identical to that shown in Figures 1 and 2, but differing slightly in relatively immaterial aspects of the aesthetic appearance of the seat portion, is also indicated at 10. Other similar components are also given the same reference numerals used with respect to Figures 1 and 2.
  • the tubular frame 14 is curved so as to be of generally S-shaped when viewed from the side. Together with the positioning of the seat portion 12 between the legs 18, the curved configuration of the legs 18 enables the chair 10 to be easily nestled with correspondingly shaped articles, for example with a plurality of identical chairs 10.
  • the seat portion 12 is movable between different height positions relative to the frame 14.
  • the sleeve formation 16 includes a substantially conical shaft having a bore 20 defining an effective front surface 22 and an effective rear surface 24.
  • a locking pin 26 is provided adj acent the lower end of the front surface 22.
  • the locking pin 26 is rigidly connected to the sleeve formation 16 for movement therewith.
  • apertures 28 are provided in a spaced apart relationship along an upper portion of each leg 18, four of which are shown in Figures 4 and 5.
  • Each aperture 28 is configured for receiving the locking pin 26 on the sleeve formation 16.
  • Each aperture 28 is aligned with a similarly positioned aperture on the other leg 18, so as to define aplurality of different height positions on the frame 14, wherein the position of seat portion 12 can be raised or lowered on the frame 14.
  • the locking pin 26 is shown in engagement with the lowermost aperture 28 A in the leg 18, so that the seat portion 12 is securely held under the action of the locking pins 26 on the sleeve formations 16 on either side ofthe seat portion 12 at that height on the frame 14.
  • the front of the leg 16 is generally in abutment with the front surface 22 of the bore 20.
  • the upper region of the rear surface 24 also includes an inclined portion, indicated at 30, and the rear leg 16 is generally in abutment with the transition between the rear surface 24 and the inclined surface 30.
  • a user can sit on the seat portion 12 of the chair 10.
  • the sleeve formations 16 and seat portion 12 are arranged so that, with a user sat on the seat portion 12, the direction of the load on the chair 10 acts to impart a rotational force on the lower end of the sleeve formation
  • the user If a user wishes to raise the seat portion 12 to a different height position, the user must first lift the front end of the seat portionl 2, indicated at 32 in Figure 3 , thereby rotating the seat portion 12 clockwise as viewed in Figure 3, until the lockiiigpins 26 are disengaged from the apertures 28 A, as shownin Figure 5. The seat portion 12 can thenbe moved upwards along the upper portion ofthe legs l ⁇ .
  • the front 32 of the seat portion 12 is rotated anti-clockwise as viewed in Figure 3, towards the legs 18, to engage the locking pins 26 in the apertures 28 at the desired height position, substantially as described above with respect to Figure 4.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs Characterized By Structure (AREA)

Abstract

A chair comprises a seat portion for enabling a user to sit on the chair and support means for supporting the seat portion. The seat portion is movable between a plurality of different height positions on the support means, and includes locking means adapted for engagement with and disengagement from the support means at each height position, by rocking the seat portion relative to the support means, wherein the seat portion is locked relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.

Description

Chair
The present invention relates to a chair or other such object for supporting a user in a seated position.
In recent years, there has been an increasing emphasis placed on the ergonomics of furniture, in particular for use in office and school environments. For example, it is common for office furniture such as chairs to be adapted for users having different height requirements.
It is an obj ect of the invention to provide an improved chair, which can be adapted for users having different height requirements.
According to the present invention, there is provided a chair comprising a seat portion for enabling a user to sit on the chair; support means for supporting the seat portion; characterised in that the seat portion is movable between a plurality of different height positions on the support means, and in which the seat portion includes locking means adapted for engagement with and disengagement from the support means at each height position, by rocking the seat portion relative to the support means, wherein the seat portion is locked relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
Preferably, the support means includes a plurality of locating formations spaced apart from one another, the locating formations corresponding generally to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
Preferably, in which the seat portion includes sleeve means adapted for receiving aportion of the support means for enabling the seat portion to be raised or lowered on said portion of the support means. Conveniently, the sleeve means are configured for rocking movement relative to said portion of the support means.
Preferably, the locking means are provided on the sleeve means, and may be arranged for movement with the sleeve means.
Preferably, the locking means comprises pin means.
In a preferred embodiment, the support means defines apair of legs, each leg including a plurality of spaced apart apertures along apportion of the leg, the position of the apertures generally corresponding to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
Conveniently, apair of sleeve formations is provided spaced apart from one another on the seat portion, with the legs of the support means arranged to extend through the respective sleeve formations.
Preferably, the seat portion is arranged between the sleeve formations.
Preferably, the support means is generally S-shaped when viewed from the side, and may be adapted for nestling with a plurality of said support means.
Other preferred features of the invention willbe readily apparent from the following description and the dependent claims.
The invention will now be described, byway of example only, with reference to the accompanying drawings, in which: Figure 1 is a schematic perspective view showing a preferred embodiment of chair in accordance with the present invention;
Figure 2 is a schematic front view of the chair shown in Figure 1;
Figure 3 is a schematic side view of a chair similar to the chair shown in Figures 1 and 2;
Figure 4 is an exploded part cross-sectional view of the area encircled in Figure 3 , showing the seat portion in an engaged condition; and
Figure 5 is a view similar to Figure 4, showing the seat portion in a disengaged condition.
Referring to Figures 1 and 2, a chair according to a preferred embodiment of the invention is indicated generally at 10. The chair 10 includes a seat portion 12 for supporting a user (not shown) in a seated position, the seat portion 12 being received on a support means in the form of tubular frame, indicated at 14.
Sleeve-type formations 16 are provided on either side of the seat portion 12, as can be seen in Figure 2, either formed integrally with the remainder of the seat portion 12 or attached thereto. The tubular frame 14 defines a base 17 and a pair of legs 18. The chair 10 is configured such that the seatportion 12 canbe received on the frame 14, with the upper ends of the legs 18 extendingup through the sleeve formations 16. In this embodiment, stabiliser means 19 are provided at the base 17 of the frame 14, which add stability to the chair 10 when placed on a planar surface such as a floor or the like.
As can be seen clearly in Figure 2, with the seat portion 12 in place on the frame 14, the seat portion is effectively suspended between the legs 18 via the sleeve formations 16.
Looking now at Figure 3 , a chair virtually identical to that shown in Figures 1 and 2, but differing slightly in relatively immaterial aspects of the aesthetic appearance of the seat portion, is also indicated at 10. Other similar components are also given the same reference numerals used with respect to Figures 1 and 2.
As with the chair shown in Figures 1 and 2, the tubular frame 14 is curved so as to be of generally S-shaped when viewed from the side. Together with the positioning of the seat portion 12 between the legs 18, the curved configuration of the legs 18 enables the chair 10 to be easily nestled with correspondingly shaped articles, for example with a plurality of identical chairs 10.
As will be described in more detail below, the seat portion 12 is movable between different height positions relative to the frame 14.
Referring to Figures 4 and 5 , the internal configuration of one of the sleeve formations 16 and its relationship with one of the frame legs 18 is clearly illustrated.
The sleeve formation 16 includes a substantially conical shaft having a bore 20 defining an effective front surface 22 and an effective rear surface 24. A locking pin 26 is provided adj acent the lower end of the front surface 22. The locking pin 26 is rigidly connected to the sleeve formation 16 for movement therewith.
As can be seen, apertures 28 are provided in a spaced apart relationship along an upper portion of each leg 18, four of which are shown in Figures 4 and 5. Each aperture 28 is configured for receiving the locking pin 26 on the sleeve formation 16. Each aperture 28 is aligned with a similarly positioned aperture on the other leg 18, so as to define aplurality of different height positions on the frame 14, wherein the position of seat portion 12 can be raised or lowered on the frame 14.
hi Figure 4, the locking pin 26 is shown in engagement with the lowermost aperture 28 A in the leg 18, so that the seat portion 12 is securely held under the action of the locking pins 26 on the sleeve formations 16 on either side ofthe seat portion 12 at that height on the frame 14. Ascanbeseen, the front of the leg 16 is generally in abutment with the front surface 22 of the bore 20. The upper region of the rear surface 24 also includes an inclined portion, indicated at 30, and the rear leg 16 is generally in abutment with the transition between the rear surface 24 and the inclined surface 30.
In this engaged position, a user can sit on the seat portion 12 of the chair 10. The sleeve formations 16 and seat portion 12 are arranged so that, with a user sat on the seat portion 12, the direction of the load on the chair 10 acts to impart a rotational force on the lower end of the sleeve formation
16, anti-clockwise as shown in Figure 4, thereby biasing the locking pin 26 into the aperture 28 A.
It will be appreciated that this action transmits a similar rotational force to the upper portion of the leg 18 , bringing it further into contact with front surface 22 of the sleeve bore 20. This rotational effect acts to securably hold the seat portion 12 in the chosen height position on the frame 14.
If a user wishes to raise the seat portion 12 to a different height position, the user must first lift the front end of the seat portionl 2, indicated at 32 in Figure 3 , thereby rotating the seat portion 12 clockwise as viewed in Figure 3, until the lockiiigpins 26 are disengaged from the apertures 28 A, as showninFigure 5. The seat portion 12 can thenbe moved upwards along the upper portion ofthe legs lδ.
To re-locate the seat portion 12 in a locked position on the frame 14, the front 32 of the seat portion 12 is rotated anti-clockwise as viewed in Figure 3, towards the legs 18, to engage the locking pins 26 in the apertures 28 at the desired height position, substantially as described above with respect to Figure 4.
The above described forward andbackward rotational movement of the front portion of the chair 10 essentially causes a rocking movement of the lower end of the sleeve formations 16 and the locking pins 26. Hence, it will be understood that the seat portion 12 is arranged for rocking engagement with the frame 14, via the locking pins 26, at each height position, for selectively locking the seat portion 12 at a desired height position.

Claims

Claims
1. A chair comprising:
a seat portion for enabling a user to sit on the chair;
support means for supporting the seat portion;
in which the seat portion is movable between a plurality of different height positions on the support means, characterised in that the seat portion includes locking means adapted for engagement with and disengagement from the support means at each height position, by rocking the seat portion relative to the support means, wherein the seat portion is locked relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
2. A chair as claimed in claim 1 , in which the support means includes a plurality of locating formations spaced apart from one another, the locating formations corresponding generally to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
3. A chair as claimed in claim 1 or claim 2, in which the seat portion includes sleeve means adapted for receiving a portion of the support means for enabling the seat portion to be raised or lowered on said portion of the support means.
4. A chair as claimed in claim 3, in which the sleeve means are configured for rocking movement relative to said portion of the support means.
5. A chair as claimed in claim 3 or claim 4, in which the locking means are provided on the sleeve means.
6. A chair as claimed in claim 5 , in which the locking means are arranged for movement with the sleeve means.
7. A chair as claimed in any preceding claim, in which the locking means comprises pin means.
8. A chair as claimed in any preceding claim, in which the support means defines a pair of legs, each leg including a plurality of spaced apart apertures along apportion of the leg, the position of the apertures generally corresponding to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
9. A chair as claimed in claim 8, in which apair of sleeve formations is provided spaced apart from one another on the seat portion, with the legs of the support means arranged to extend through the respective sleeve formations.
10. A chair as claimed in claim 9, in which the seat portion is arranged between the sleeve formations.
11. A chair as claimed in any preceding claim, in which the support means is generally S- shaped when viewed from the side.
12. A chair as claimed in any preceding claim, in which the support means is adapted for nestling with a plurality of said support means.
13. A chair as hereinbefore described and as illustrated in any of Figures 1 to 5.
PCT/GB2005/002765 2004-07-15 2005-07-14 Chair WO2006008473A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002573792A CA2573792A1 (en) 2004-07-15 2005-07-14 Chair
JP2007520893A JP2008506438A (en) 2004-07-15 2005-07-14 Chair
AU2005263919A AU2005263919A1 (en) 2004-07-15 2005-07-14 Chair
US11/632,579 US20080136238A1 (en) 2004-07-15 2005-07-14 Chair
EP05759711A EP1778052A1 (en) 2004-07-15 2005-07-14 Chair

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0415805.1A GB0415805D0 (en) 2004-07-15 2004-07-15 Chair
GB0415805.1 2004-07-15

Publications (1)

Publication Number Publication Date
WO2006008473A1 true WO2006008473A1 (en) 2006-01-26

Family

ID=32893585

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/002765 WO2006008473A1 (en) 2004-07-15 2005-07-14 Chair

Country Status (7)

Country Link
US (1) US20080136238A1 (en)
EP (1) EP1778052A1 (en)
JP (1) JP2008506438A (en)
AU (1) AU2005263919A1 (en)
CA (1) CA2573792A1 (en)
GB (1) GB0415805D0 (en)
WO (1) WO2006008473A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9775759B2 (en) * 2014-01-14 2017-10-03 Acuity Ophthalmics, Llc Chair for use with ophthalmic instruments
USD867778S1 (en) * 2017-10-17 2019-11-26 TON a.s. Chair (leaf)
USD904054S1 (en) * 2017-11-30 2020-12-08 Norix Group, Inc. Modern furniture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9214190U1 (en) * 1992-10-21 1992-12-10 Stecher, Roland, Götzis Chair
DE29720990U1 (en) * 1997-11-27 1998-02-05 Nehring, Werner, 22419 Hamburg Backrest grid chair with adjustable seat plate
DE19733785A1 (en) * 1997-08-05 1999-02-11 Loh Kg Hailo Werk chair
US20040056525A1 (en) * 2002-09-20 2004-03-25 Moll System- Und Funktionsmobel Gmbh Chair

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637371A (en) * 1950-07-13 1953-05-05 Harold S Boutin Chair having resilient frame
US3697130A (en) * 1971-04-20 1972-10-10 American Seating Co Connector assembly for chairs
DE2618292C3 (en) * 1976-04-27 1978-10-05 Fa. Heinrich Wilhelm Dreyer, 4515 Bad Essen Standing work seat
DE10142081A1 (en) * 2001-08-30 2003-03-20 Pius Ponticelli chair
US7234777B2 (en) * 2004-03-16 2007-06-26 Kimball International, Inc. Chair with adjustable armrests and backrest

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9214190U1 (en) * 1992-10-21 1992-12-10 Stecher, Roland, Götzis Chair
DE19733785A1 (en) * 1997-08-05 1999-02-11 Loh Kg Hailo Werk chair
DE29720990U1 (en) * 1997-11-27 1998-02-05 Nehring, Werner, 22419 Hamburg Backrest grid chair with adjustable seat plate
US20040056525A1 (en) * 2002-09-20 2004-03-25 Moll System- Und Funktionsmobel Gmbh Chair

Also Published As

Publication number Publication date
US20080136238A1 (en) 2008-06-12
JP2008506438A (en) 2008-03-06
EP1778052A1 (en) 2007-05-02
CA2573792A1 (en) 2006-01-26
GB0415805D0 (en) 2004-08-18
AU2005263919A1 (en) 2006-01-26

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