EP0136796A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Adjustable chair
Assignee: Individual
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Filing: 1984-08-17
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Granted: —
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Expires: 2004-08-17
Abstract
Abstract @ A plastic adjustable chair having a base section (12) which has a central base column (82) and integral legs (84) radiating therefrom, all of moulded plastic, and a seat section (14) having a seat shell of moulded plastic tiltably mounted on a plastic seat column. The seat column is pivotally mounted on the base column (82) by a gas cylinder (88). A plastic backrest column is pivotally mounted on the seat shell and is adjustable with a gas cylinder. A plastic backrest shell (18) can slide vertically on the backrest column, controlled by a flexible plastic locking lever. Upholstered plastic back and seat cushions can be snapped onto the back and seat shells or removed for reupholstery or cleaning. Plastic arms (16), bolt onto the underside of the seat shell for easy removal, and plastic castors (20) can be snapped into or removed from the legs.
Inventors
- 👤 Paolo Favaretto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 00:12
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/002; A47C7/006; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/0244; A47C3/00; A47C3/20; A47C3/30; A47C7/004; A47C7/36; A47C7/40; A47C7/402
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
179 words
A chair formed primarily of plastic material characterised by: a base, comprising a vertical central base column and legs radiating outwardly therefrom, said base column and legs all being integrally formed of plastic; a seat section comprising a plastic seat shell, having upper and lower surfaces, a plastic central seat column extending downwardly below said seat shell, and a plurality of reinforcing plastic ribs integrally formed on the lower surface of said seat shell; means connecting said seat shell to said seat column; means connecting said seat column to said base column for rotation of said seat section about a vertical axis relative to said base; a backrest column formed of plastic; means connecting said backrest column to said seat shell; a backrest shell of plastic removably connected to said backrest column and having a front surface; upholstered back cushion means, and means for removably connecting said back cushion means to said first surface of said backrest shell; and upholstered seat cushion means, and means for removably connecting said seat cushion means to said upper surface of seat shell.
Claim 2
Dependent Claim
179 words
A chair formed primarily of plastic material characterised by: a base, comprising a vertical central base column and legs radiating outwardly therefrom, said base column and legs all being integrally formed of plastic; a seat section comprising a plastic seat shell, having upper and lower surfaces, a plastic central seat column extending downwardly below said seat shell, and a plurality of reinforcing plastic ribs integrally formed on the lower surface of said seat shell; means connecting said seat shell to said seat column; means connecting said seat column to said base column for rotation of said seat section about a vertical axis relative to said base; a backrest column formed of plastic; means connecting said backrest column to said seat shell; a backrest shell of plastic removably connected to said backrest column and having a front surface; upholstered back cushion means, and means for removably connecting said back cushion means to said first surface of said backrest shell; and upholstered seat cushion means, and means for removably connecting said seat cushion means to said upper surface of seat shell.
Claim 3
Dependent Claim
50 words
A chair according to claim 1, characterised in that said means connecting said seat column to said base comprises a gas cylinder to allow raising and lowering of said seat section relative to said base, said gas cylinder projecting upwardly into said seat column and downwardly into said base column.
Claim 4
Dependent Claim
85 words
A chair according to claim 1 or claim 2, characterised in that said means connecting said backrest column to said seat shell comprises pivot means pivotally connecting said backrest column to said seat shell for rotation of said backrest column about a horizontal axis relative to said seat shell, and a horizontally oriented gas cylinder pivotally connected between said backrest column and a position on said seat section adjacent said seat column for permitting front to rear tilting of said backrest column and backrest shell.
Claim 5
Dependent Claim
20 words
A chair according to claim 3 characterised in that said horizontally oriented gas cylinder is connected to said seat shell.
Claim 6
Dependent Claim
89 words
A chair according to any of claims 1 to 4, characterised in that said means connecting said seat shell to said seat column includes means pivotally connecting said seat shell to said seat column adjacent the rear of said seat column for rotation of said seat shell about a horizontal axis relative to said seat column, and a vertically oriented gas cylinder adjacent the front of said seat column and connected between said seat shell and said seat column to allow front to rear tilting of said seat shell.
Claim 7
Dependent Claim
47 words
A chair according to any of claims 1 to 5, characterised by including a pair of arms, each arm having an upper arm rest and a lower inwardly extending support, and means removably securing said lower inwardly projecting support to said lower surface of said seat shell.
Claim 8
Dependent Claim
58 words
A chair according to any of claims 1 to 6, characterised in that said backrest column includes a plurality of vertically spaced teeth, said backrest shell being slideable vertically on said backrest column and including means to engage said teeth to lock said backrest shell onto said backrest column in any one of a plurality of vertical positions.
Claim 9
Dependent Claim
28 words
A chair according to claim 7, characterised in that said means for engaging said teeth comprises a substantially U-shaped flexible locking lever having a plurality of teeth thereon.
Claim 10
Dependent Claim
24 words
A chair according to claim 8 characterised in that said locking lever is formed of plastic and is removably inserted into said backrest shell.
Claim 11
Dependent Claim
91 words
A seat according to claim 9, characterised in that said backrest shell has a pair of vertically extending laterally spaced ribs, one on each side of said backrest column, said locking lever being located between said ribs and having a box-like structure at its lower end, said box-like structure having said teeth at its front surface and having a pair of slots at its rear surface, and a pair of studs located on said backrest shell between said ribs and projecting into said slots to locate and secure said locking lever.
Claim 12
Dependent Claim
68 words
A seat according to any of claims 1 to 10, characterised by a plurality of plastic castors, one for each leg, each castor having a plastic housing, a horizontal axle having wheel means mounted thereon, said housing having flexible sidewalls, said sidewalls including detent means therein for removably securing said axle so that when said sidewalls are bent outwardly said axle with said wheel may be removed therefrom.
Claim 13
Dependent Claim
109 words
A chair according to any of claims 1 to 11, characterised in that said means connecting said seat column to said base column comprises means to allow raising and lowering of said seat section relative to said base, and wherein said means connecting said backrest column to said seat shell comprises pivot means pivotally connecting said backrest column to said seat shell for rotation of said backrest column about a horizontal axis relative to said seat shell, and means pivotally connected between said backrest column and a position on said seat section adjacent said seat column for permitting front to rear tilting of said backrest column and backrest shell.
Claim 14
Dependent Claim
81 words
A chair according to claim 12, characterised in that said means connecting said seat shell to said seat column includes means pivotally connecting said seat shell to said seat column adjacent the rear of said seat column for rotation of said seat shell about a horizontal axis relative to said seat column, and means adjacent the front of said seat column and connected between said seat shell and said seat column to allow front to rear tilting of said seat shell.
References Cited (Backward Citations)
No citation records indexed.
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