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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=32893585

Family Applications (1)

Country Status (7)

Families Citing this family (3)

Family Cites Families (9)

• 2004
  • 2004-07-15 GB GBGB0415805.1A patent/GB0415805D0/en not_active Ceased
• 2005
  • 2005-07-14 US US11/632,579 patent/US20080136238A1/en not_active Abandoned
  • 2005-07-14 WO PCT/GB2005/002765 patent/WO2006008473A1/en active Application Filing
  • 2005-07-14 CA CA002573792A patent/CA2573792A1/en not_active Abandoned
  • 2005-07-14 EP EP05759711A patent/EP1778052A1/de not_active Withdrawn
  • 2005-07-14 AU AU2005263919A patent/AU2005263919A1/en not_active Abandoned
  • 2005-07-14 JP JP2007520893A patent/JP2008506438A/ja active Pending

Non-Patent Citations (1)

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