WO2001078557A1 - Seat, such as an armchair or a sofa - Google Patents

Seat, such as an armchair or a sofa Download PDF

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Publication number
WO2001078557A1
WO2001078557A1 PCT/FI2001/000338 FI0100338W WO0178557A1 WO 2001078557 A1 WO2001078557 A1 WO 2001078557A1 FI 0100338 W FI0100338 W FI 0100338W WO 0178557 A1 WO0178557 A1 WO 0178557A1
Authority
WO
WIPO (PCT)
Prior art keywords
part
back
parts
14a
seat
Prior art date
Application number
PCT/FI2001/000338
Other languages
French (fr)
Inventor
Leena Palsanen
Original Assignee
Martela Oyj
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 FI20000887A priority Critical patent/FI108841B/en
Priority to FI20000887 priority
Application filed by Martela Oyj filed Critical Martela Oyj
Publication of WO2001078557A1 publication Critical patent/WO2001078557A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/54Supports for the arms
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/54Supports for the arms
    • A47C7/543Supports for the arms movable to inoperative position

Abstract

The invention concerns a seat (10), such as an armchair or a sofa, which includes a body (11) and a bottom part (13) joined to it, which includes a cushioning (13a2). The chair includes hinge parts (16) both in the armrest parts (14a1, 14a2) and in the back part/back parts (15), whereby the said armrest parts (14a1, 14a2) an back part/back parts (15) are adapted to return in relation to the body (11) of the chair.

Description

Seat, such as an armchair or a sofa

The invention concerns a seat, such as an armchair or a sofa.

Known in the art are various lands of flexible chair structures, wherein flexibility of the chair is brought about by making the bottom part as soft and flexible as possible. In many state-of-the-art chair solutions the back of the chair is also made flexible in the same way by using cushioning.

This application presents a seat solution of an entirely new type, preferably an armchair or a sofa. Flexibility of the bottom is achieved in such a way that the bottom part is soft and it flexes as such, but additional flexibility is also brought about with the aid of hinge parts. The armrest parts and the back part/back parts, which are to be joined to the body of the bottom part, are joined to the framework of the body through a hinge part, whereby both the armrest part and the back part/back parts will turn supported by the hinge part allowing elastic flexibility of the cushioned piece. The cushionings act in the manner of counter springs in relation to each other, and thus they form an optimally flexible total structure for the armchair/sofa.

According to the invention, the body is formed as a framework by using tube parts, which are joined together and which include a bottom framework part and side frame parts as well as aback support. According to the invention, with the aid of the hinge part both the armrest parts and the back part/back parts are joined to the side frame parts and to the back support. The back part/back parts are joined to the back support and, correspondingly, the armrest parts are joined to the respective side frame part located on the side. According to the invention, the hinge part includes a cavity, which will at least partly surround the tube structure of the body's side frame part/the tube structure of the back support. According to the invention, both the armrest parts and the back part are joined to the body through the joining hinge part. In form a united seat structure. In addition, the armchair/sofa according to the invention is a lightweight structure, so that it can easily be moved supported by its wheels.

The bottom part is joined by screws to the bottom framework part of the rigid body. The bottom part includes a plywood body located on the bottom and on top of this a cushioning, e.g. Superlon cushioning, and then upholstery surrounding these. A vertical support is added to the plywood body to act as a stop part for the ttirtiing parts of the chair structure, that is, for the armrest parts / the back part, to limit the ttirning motion at its one extreme position. At the other extreme position, limiting of the turning motion takes place at the back feet of the back, while the partial motion of the armrests is stopped at the front feet.

The seat, such as an armchair or a sofa, according to the invention is characterised by that which is stated in the claims.

In the following, the invention will be described with reference to some advantageous embodiments of the invention shown in the figures of the appended drawings, but the purpose is not to restrict the invention solely to these embodiments.

Figure 1 A shows a so-called exploded view of a seat according to the invention, its armchair embodiment, wherein the parts joined to the chair are shown separate from each other before assembly.

Figure IB shows the chair according to the invention assembled.

Figure 1C shows the chair in direction K\ of Figure IB.

Figure ID shows the chair according to the invention in direction K2 of Figure IB.

Figure IE is a separate view of the hinge part. Figure 2 illustrates how the armrest parts back part according to the invention turn and how flexibility is brought about owing to the above-mentioned function.

Figure 3 A is a view from the front and Figure 3B is a view from the back of a sofa embodiment of the seat according to the invention.

Seat 10 may be an armchair for one person or a sofa seating two or more persons. Figure 1 A shows the chair according to the invention disassembled in order to show the structural parts. Figure IB shows the chair in its assembled state. Figure 1C shows the chair in direction Kι of Figure IB, whereby the armrest parts 14aι and 14a of bottom part 13 and the back part 15 are joined to a framework 11 through a hinge part 16. Figure ID shows the chair in direction K of Figure IB. The figure shows how the back part 15 turns supported by the hinge part 16. The dashed lines and arrows Si show the reclining position of back part 15.

Seat 10 includes such a rigid body 11, which is formed in the shape of a framework. The framework 11 includes parts having a circular cross-section and preferably formed by tubes. Framework 11 also includes a bottom framework part 11a, which includes a part 12aι and 12a forming a lattice. In addition, the framework 11 in- eludes side frame parts 12a3 and 12a4 located higher in the vertical plane on both sides of the seat and a back support 12a5 located at the back at the same height level. The side frame parts 12a3 and 12_u continue to feet parts 12a8 and 12a9 extending downwards. In addition, the feet parts 12_tø and 12a7 located at the back are joined to the back support 15 as , for example, by welding .

Joined by screws to the bottom framework 12al512a2 is a bottom part 13, which includes a lowermost plywood body 13aι and on top of this a cushioning 13a , e.g. a Superlon cushioning, and also upholstery 13a3, e.g. cloth upholstery, surrounding these.

The seat 10 also includes two armrest parts 14ai and 14a and between these at least the sofa embodiment there are e.g. two back parts, h the embodiments shown in the figures, the armrest parts 14al5 14a and the back part/back parts 15 include a plywood body ej. and a cushioning e2. Each hinge part 16 is joined to its plywood body ei.

In the structure according to the invention, the turning parts, that is, the armrest parts 14aι, 14a2 and the back part/back parts 15 are provided with cushioning e2. This allows elastic flexibility for the turning parts along a large area of motion owing to the ttirning motion. The turning part, such as the armrest part 14aι , 14a2 or the back part 15, includes a cushioning e , which in the ttirmng motion will hit a counter cushioning in the bottom part. Hereby elastic flexibility is offered to the turning parts in a , large area of motion.

Bottom part 13 also includes stops or vertical supports 17aι, 17a2, 17a3 joined to its plywood body 13aι^ on both sides of bottom part 15 and behind it. With the aid of the said vertical supports 17aι, 17a2, 17a3 , that is, the stop surfaces, a stop is formed for the armrest parts 14aι and 14a and the back part 15, which are adapted to turn, in order to limit their turning motion. The other extreme position of the motion is limited for back part 15 by back feet 12a6, 12a7 and for armrest 14al5 14a2 by front feet 12a8, 12a9. Each armrest part 14al5 14a is joined by a hinge part 16 to a side frame part 12a3, 12a of framework 11. Correspondingly, the back part 15 is joined by hinge part 16 to back support 12a5. Both the side frame parts 12a3 and 12a4 _he back support part 12a5 are tube parts and circular cross-sections located at the same height level, and a cavity 160 in the hinge part 16 can be fitted to them by a so-called snap- ping attachment. Hinge part 16 and the structures joined to it in each part of the chair, that is, both the armrest parts 14ai and 14a2 and the back part 15, turn around the geometrical axis G\ of hinge part 16. Hinge part 16 is preferably made of plastic and it is flexible, so that a tube can be placed into cavity 160, whereby the walls 160', 160" of the cavity will flex. Hinge part 16 may also be made of e.g. a ceramic mate- rial, metal, wood. By way of through holes ti, t2 in each hinge part 16 the hinge part 16 can be joined by screws to the armrest part 14aι, 14a2 or to the back part 15. Each it extends into a hole or groove u located in the inner side of cavity 160 in the hinge part 16. Groove u extends in a certain angular sector along the periphery of cavity 160. Cotter pin f prevents the hinge part 16 and the joined armrest part 14al5 14a2 from moving in the depth direction of the chair/sofa, that is, in the longitudinal di- rection of tube 12a , 12a4 joined to hinge part 16, and it prevents the back part 15 from moving in the lateral direction of the chair/sofa, that is, in the longitudinal direction of body tube 12a5 joined to the hinge part 16. The diameter of cotter pin f is slightly smaller than the width of groove u.

In the structure according to the invention, the bottom part 13 and both the armrest parts 14als 14a2 and the back part 15, which are articulated to turn separately, will yield flexibly to the sitting person. Thus, seat 10 is very flexible owing both to the cushioning and to the effect of the above-mentioned εurticulation/hinging. The structure can also be easily disassembled and assembled. The chair/sofa is also a light- weight structure as a whole and it is thus easily movable. Body 11 is provided with wheels 20a1...20a .

Figure IE shows a separate view of the hinge part 16 joined to the armrest part. It may be joined to the side frame part of the body formed by a tube structure. A hole or groove u located in the middle of the hinge part 16 positions the armrest parts and the back part in their correct positions in the body part. The body part has fixed cotter pins f (pins) for each armrest part and for the back part/back partsl5, with which the hinge parts are aligned. The longitudinal hole or groove u allows the hinge 16 and the joining structure to turn around the tube along a path of motion of a certain length. The rotation of this path of motion is larger than the rotation allowed by the stop 17aι, 17a2, 17a for the actual motion of the armrests and the back, that is, the motion of armrests 14al5 14a and back 15 outwards from the centre of the chair is actually limited by stop 17aι, 17a2, 17a3 in the bottom plywood. Stops 17al5 17a2, 17a3 may also be formed by one board structure. In front of the stop parts 17al3 17a , 17a3 there is preferably a cushioning layer to allow elastic flexibility for the turning parts. Figure 2 illustrates by dashed lines the turning of the back part 15 and the turning of armrest part 14a2 supported by their hinge part 16. The turning of back part 15 is shown by arrows Si and the turning of armrest part 14a2 is shown by arrows S2.

Figures 3A and 3B show such an embodiment of the seat, which is a sofa seating two persons. Hereby there are two bottom parts 13 and, coixespondingly, there are two back parts 15. The body 11 is formed by a tube framework body, as in the chair embodiment, whereby the bottom parts 13 are joined e.g. by screws to the bottom framework part 11 a of the body 11.

Claims

Claims
1. Seat (10), such as an armchair or a sofa, which includes a body (11) and a bottom part (13) joined to it, which includes a cushioning (13a2), characterised in that the chair includes hinge parts (16) both in the armrest parts (14aι,14a2) and in the back part/back parts (15), whereby the said armrest parts (14aι,14a2) and back part/back parts (15) are adapted to turn in relation to the body (11) of the chair and that the turning parts, such as the armrest part (14aι, 14a2) and the back part (15), include a cushioning layer (e2), which when turning hits the bottom part (13), pref- erably its cushioning layer, whereby with the aid of the said cushionings and with the aid of the turning motion an elastic flexibility is brought about for the tiirning parts, such as the armrest part (14aι, 14a2) and the back part (15).
2. Seat as defined in claim 1, characterised in that the hinge part (16) is joined to the armrest part (14al514a2) and to the back part (15), and that the hinge part (16) includes a cavity (160), which will surround a tubular part joined to the said hinge part of the body (11).
3. Seat as defined in claim 2, characterised in that the hinge part (16) joined to the armrest parts (14aι,14a2) surrounds the tubular side frame part (12a3,12a4) of the body (11), and that the hinge part (16) joined to the back part (15) will surround the tubular back support (12as).
4. Seat as defined in any one of the preceding claims, characterised in that the bottom part (13) includes a plywood body (13aι) located on the bottom, a cushioning (13a2), preferably a Superlon cushioning, located on top of it and upholstery (13a3), preferably upholstery cloth, surrounding these both.
5. Seat as defined in the previous claim, characterised in that the bottom part (13) is joined by screws or such to a rigid body (11) on top of its bottom framework part (11a).
6. Seat as defined in any one of the preceding claims, characterised in that the bottom part (13) also includes a vertical support (17aι,17a2 ,17a3), which limits one extreme position of the turning motion of the armrest parts (14aι,14a2) and the back part (15), which are articulated for a turning motion, whereas the other ex- treme position is limited for the back (15) at the back feet (12a6, 12a7), and for the armrest part (14aι, 14a2) at the front feet (12a8, 12a9).
7. Seat as defined in any one of the preceding claims, characterised in that the hinge part (16) includes a longitudinal cavity (160), which includes flexible walls, whereby the tubular part of the body (11) can be placed with a so-called snapping attachment into the cavity (160) of the hinge part (16).
8. Seat as defined in any one of the preceding claims, characterised in that the armrest parts (14ai,14a2) and the back part (15) are adapted to turn around the swivel axis (Gi) of the cavity (160) in the hinge part (16).
9. Seat as defined in any one of the preceding claims, characterised in that the wheels (20aι,20a2,20a3,20a4) are joined to the body (11), on which wheels the seat (10) is movable.
10. Seat as defined in any one of the preceding claims, characterised in that the hinge part (16) is of a plastic material.
11. Seat as defined in any one of the preceding claims, characterised in that the hinge part (16) includes through holes (ti, t2) for attaching the hinge part (16) to the armrest parts (14a1? 14a2) or to the back part/back parts (15), and that the hinge part (16) includes a groove (u), into which a cotter pin (f) or such joined to the body tube can be fitted, whereby rotation of the hinge part (16) and of its associated structure is made possible, but the hinge part (16) and the associated structure are prevented from moving in the direction of the body tube joined to the hinge part.
PCT/FI2001/000338 2000-04-13 2001-04-06 Seat, such as an armchair or a sofa WO2001078557A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20000887A FI108841B (en) 2000-04-13 2000-04-13 The seat, such as a recliner and sofa
FI20000887 2000-04-13

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU52309/01A AU5230901A (en) 2000-04-13 2001-04-06 Seat, such as an armchair or a sofa
DE2001196081 DE10196081T1 (en) 2000-04-13 2001-04-06 Seat, such as a chair or a sofa
SE0202868A SE523279C2 (en) 2000-04-13 2002-09-30 Seat, such as an armchair or a sofa

Publications (1)

Publication Number Publication Date
WO2001078557A1 true WO2001078557A1 (en) 2001-10-25

Family

ID=8558202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2001/000338 WO2001078557A1 (en) 2000-04-13 2001-04-06 Seat, such as an armchair or a sofa

Country Status (5)

Country Link
AU (1) AU5230901A (en)
DE (1) DE10196081T1 (en)
FI (1) FI108841B (en)
SE (1) SE523279C2 (en)
WO (1) WO2001078557A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338094A (en) * 1988-04-25 1994-08-16 Perry Charles O Flexible reclining chair
US5383712A (en) * 1988-04-25 1995-01-24 Perry; Charles O. Flexible chair

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338094A (en) * 1988-04-25 1994-08-16 Perry Charles O Flexible reclining chair
US5383712A (en) * 1988-04-25 1995-01-24 Perry; Charles O. Flexible chair

Also Published As

Publication number Publication date
FI108841B (en) 2002-04-15
SE523279C2 (en) 2004-04-06
FI20000887A (en) 2001-10-14
FI20000887D0 (en)
SE0202868L (en) 2002-12-13
FI108841B1 (en)
AU5230901A (en) 2001-10-30
DE10196081T0 (en)
DE10196081T1 (en) 2003-07-03
SE0202868D0 (en) 2002-09-30
FI20000887A0 (en) 2000-04-13

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