EP2648570A1

EP2648570A1 - Chair having two positions

Info

Publication number: EP2648570A1
Application number: EP11805902.1A
Authority: EP
Inventors: Fabrice Sprenger
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-06
Filing date: 2011-12-05
Publication date: 2013-10-16
Also published as: WO2012076769A1; FR2968178A1; FR2968178B1

Abstract

The present invention relates to a chair (10) having two positions, comprising a first seat part (13) extended by a backrest (12), a first underframe (15) supporting said first seat part, a second seat part (14) extended by said backrest, this second seat part being located on the opposite side to said backrest with respect to the first seat part, and a second underframe (16) supporting said second seat part, this second underframe having a part (17) in common with said first underframe. The first seat-part angle (A1) defined between the first seat part and the backrest and the second seat-part angle (A2) defined between the second seat part and the backrest are different, and the first underframe (15, 25) and the second underframe (16, 26) have different heights, such that said chair (10, 20) is designed to be able to take up two different stable positions, specifically a normal-height chair position and a long low chair position, the passage from one position to the other being effected by pivoting said chair about the common part (17, 27) of said underframes.

Description

CHAIR WITH TWO POSITIONS

Technical Field: The present invention relates to a chair with two positions comprising at least a first seat extended by a backrest, and at least a first base supporting said first seat.

Prior art:

In the field of indoor and outdoor furniture, there are commonly in the same space fixed or reclining chairs that are used to take meals and on which the user is seated, and fixed chairs or recliners that are used for moments of rest and on which the user is lying partially or completely. There is currently no chair convertible chaise longue and conversely to have only one product that can be adapted to the needs and times of the day. Presentation of the invention

The present invention aims to overcome this shortage by providing a chair, two in one, simple design, economic, without mechanism, which can adopt two different stable seating positions.

For this purpose, the invention relates to a chair of the type indicated in the preamble, characterized in that it comprises a second seat extended by said backrest, this second seat being disposed on the opposite side to said seat relative to the first seat, and a second base supporting said second seat, this second base having with said first base a common part, so that said chair is arranged to occupy two different stable positions, the passage from one position to another is effected by tilting said chair around the common portion of said legs. In a preferred embodiment, the first seat angle defined between the first seat and the backrest and the second seat angle defined between the second seat and the backrest are different, and the first base and the second base have a height. different, so that the chair can occupy either a normal high chair position or a long low chair position.

In the preferred embodiment, the first base comprises the common part and the second base, and the second base comprises the common part and the first seat, so that the two legs are adjacent and included in a four-sided polyhedron defined by four angles.

The first seat angle can be between 95 ° and 110 ° and the second seat angle between 130 ° and 145 °, so that the first angle of the polyhedron having for vertex that of the first seat angle can be understood between 105 ° and 135 °. Advantageously, the second angle of the polyhedron having at its summit the base of the common part resting on the ground and extending between the ground support plane defined by the first base and the ground support plane defined by the second base can be between 100 ° and 120 °, so that the tilting of the chair between its two positions can be performed on an angle between 60 ° and 80 °.

The third angle of the polyhedron having for its summit the base of the second seat resting on the ground may be between 60 ° and 80 °, and the fourth angle of the polyhedron having for vertex the base of the first seat in ground support may be understood between 60 ° and 80 °. In the preferred embodiment, the ratio between the height of the second base and the height of the first base is between 70 and 90%, the height of the first base can be between 420 and 440 mm, and the height of the second base between 310 and 350 mm.

According to the embodiment, the top of the first seat angle and the top of the second seat angle can be merged or offset in height.

The chair may have a tubular structure and panels attached to said structure to form at least two seats and backrest, or a solid structure forming at least two seats and backrest, or a combination of both.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention and its advantages will appear better in the following description of two embodiments given as non-limiting examples, with reference to the appended drawings, in which:

FIG. 1 is a perspective view of a chair according to a first embodiment of the invention,

FIGS. 2A and 2B are side views of the chair of FIG. 1 respectively in the chair position and in the chaise lounge position,

FIG. 3 is a perspective view of a chair according to a second embodiment of the invention, and

Figures 4A and 4B are side views of the chair of Figure 3 respectively in chair position and lounge chair position.

Illustrations of the invention and different ways of making it:

With reference to the appended figures, the two-position chair 10, 20 according to the invention is represented by a tubular structure 11, 21 defining a backrest 12, 22, a first seat 13, 23 extending from one side of the backrest, a second seat 14, 24 extending from the other side of the backrest, a first base 15, 25 supporting the first seat 13, 23, and a second base 16, 26 supporting the second seat 14, 24, this second base having with the first base a common portion 17, 27. In the two embodiments shown, the first base 15, 25 comprises the common part 17, 27 and the second seat 14, 24, and the second base 16, 26 has the common part 17, 27 and the first seat 13, 23. These two legs 15, 25 and 16, 26 are adjacent and included in a four-sided polyhedron defined by four angles A3, A4, A5 and A6 described later.

Thanks to the provision of the ground supports formed by the legs and the position of the center of gravity of the chair with or without a user within these supports on the ground, the chair 10, 20 according to the invention can occupy two positions different stable positions, ie a normal high chair position (see Figs 1 and 2A, Figs 3 and 4A) and a long low chair position (see Fig. 2B, Fig. 4B), the transition from one position to the other being effected by manually tilting the chair around the common part 17, 27 of the legs 15, 16 and 25, 26 by the double arrow F.

To respectively create a sitting position and an extended position with the same chair 10, 20, the first seat angle A1 defined between the first seat 13, 23 and the backrest 12, 22 and the second seat angle A2 defined between the second seat 14, 24 and the file 12, 22 are different. The first seat angle A1 is for example between 95 ° and 110 °, and the second seat angle A2 is for example between 130 ° and 145 °. In the first embodiment according to FIGS. 1 and 2, where the vertices of the angles A1 and A2 coincide, the first seat angle Al is equal to 105 °, and the second seat angle A2 is equal to 138, 5 °. The remaining angle A3, corresponding to the first total angle of the two adjacent legs 15, 16 having at the top the base of the backrest 12 and extending between the first seat 13 and the second seat 14 is between 105 ° and 135 °, and preferably equal to 116.5 °. In this case, the sum of the three angles A1, A2 and A3 is equal to 360 °. In the second mode of embodiment according to Figures 3 and 4, where the vertices of the angles A1 and A2 are not confused, the angle Al is equal to 103 ° and the angle A2 is equal to 136 °. On the other hand, the angle A3 remains substantially the same as in the previous example, this angle A3 being defined between the first seat 23 and the fictitious plane represented in dashed lines extending between the base of the second seat 24 resting on the ground and the top of the angle Al, corresponding to the polyhedron encompassing the two legs. Of course, these figures are given for information only and are not limiting.

Similarly, to create respectively a sitting position and an elongated position, both ergonomic, with the same chair 10, 20, the height Hl of the first base 15, 25 and the height H2 of the second base, these heights being taken from the base from the back 12, 22 to the floor, are different. The ratio between the height H2 of the second base 16, 26 and the height H1 of the first base 15, 25 may for example be between 70 and 90%. Specifically, the height Hl of the first base 15, 25 may be between 420 and 440 mm, and the height H2 of the second base 16, 26 may be between 310 and 350 mm. In the first embodiment according to FIGS. 1 and 2, the height H 1 of the first base 15 is preferably equal to 430 mm, and the height H 2 of the second base 16 is preferably equal to 338 mm. In the second embodiment according to FIGS. 3 and 4, the height H 1 of the first base 25 is equal to 428 mm, and the height H 2 of the second base 26 is equal to 316 mm. Of course, these figures are given for information only and are not limiting.

The second total angle A4 of the two legs 15, 16; 25, 26 adjacent having for vertex the base of the common part 17, 27 resting on the ground and extending between the ground support plane PI defined by the first base 15, 25 and the ground support plane P2 defined by the second base 16, 26 is for example between 100 ° and 120 ° and preferably equal to 104.5 °. Thus, the tilting along the double arrow F of the chair 10, 20 between its two stable positions is performed at an angle of between 60 ° and 80 °, and preferably equal to 75.5 °. The change of position is by therefore very simple and fast. The user grasps the chair 10, 20 from the top of the backrest 12, 22 to rotate it around the base of the common part 17, 27 resting on the ground. It does not need to lift the chair, to maneuver any mechanism, or to make complicated movements or large amplitude. Of course, these figures are given for information only and are not limiting.

The third angle A5 of the first base 15, 25 having for its summit the base of the second seat 14, 24 resting on the ground is for example between 60 ° and 80 °, and preferably equal to 68.5 °, and the fourth A6 angle of the second base 16, 26 having for top the base of the first seat 13, 23 in support of the ground is for example between 60 ° and 80 °, and preferably equal to 70.5 °. Of course, these figures are given for information only and are not limiting. The sum of the four angles A3, A4, A5 and A6 of the polyhedron encompassing the two adjacent legs shall be 360 °.

In the embodiment of Figures 1 and 2, the top of the first seat angle A1 and the top of the second seat angle A2 are coincident, while in the embodiment of Figures 3 and 4, they are offset. The vertex of the angle A2 is located lower than the vertex of the angle A1 and has a value greater than the angle A2 of the first embodiment. This difference makes it possible to create a lower lounge chair position. Possibilities of industrial application:

The chair 10, 20 according to the invention can be made in various ways and can be declined in a multitude of models, depending on the manufacturing prices, the industrial processes used and the raw materials chosen. It may comprise a tubular structure 11, 21 formed of tubes, assembled by welding, gluing, mechanical fastening, or the like. The tubes may be solid, hollow or perforated and have a closed section in square, round, triangular, or open section I, U, C or the like. They can be made of various materials such as wood, synthetic materials, composite and / or recycled, steel, stainless steel, or the like. In this case, the tubular structure 11, 21 is dressed with panels attached and fixed to the structure by gluing, riveting, stapling, nailing, sewing, or the like, to form at least the two seats 13, 23; 14, 24 and the back 12, 22. These reported panels can also dress the side of the legs 15, 25; 16, 26, as well as the front face and the rear face of these legs according to the desired aspect of the chair. The panels may be solid, hollow or perforated, rigid or semi-rigid wood panels, synthetic materials, composite and / or recycled, translucent or not, covered or not with a fabric covering, non-woven, leather, canvas, or similar. These panels can be flexible panels stretched on the structure, made of canvas, film, or the like, or weaving thread, rope or strap. The chair 10, 20 according to the invention may also comprise a solid structure forming at least the two seats and the backrest, the legs may consist of a solid polyhedral block, hollow or openwork, or a combination between a tabular structure and a solid structure, in materials or combinations of materials such as those defined above.

It is clear from this description that the invention achieves the goals set, namely a versatile chair, simple and easy to handle, offering two seating options. The present invention is not limited to the embodiments described but extends to any modification and variation obvious to a person skilled in the art while remaining within the scope of protection defined in the appended claims.

Claims

claims

A chair (10, 20) with two positions comprising at least a first seat (13, 23) extended by a backrest (12, 22), and at least a first base (15, 25) supporting said first seat, characterized in that it comprises a second seat (14, 24) extended by said backrest, this second seat being disposed on the opposite side to said backrest relative to the first seat, and a second base (16, 26) supporting said second seat, this second base having with said first base a common portion (17, 27), so that said chair (10, 20) is arranged to be able to occupy two different stable positions, the passage from one position to the other is effected in rocking said chair around the common portion (17, 27) of said legs.

2. Chair according to claim 1, characterized in that the first seat angle (A1) defined between the first seat and the backrest and the second seat angle (A2) defined between the second seat and the backrest are different, and in that the first base (15, 25) and the second base (16, 26) have a different height, so that said chair (10, 20) is arranged to occupy either a normal high chair position or a position long low chair.

3. Chair according to any one of claims 1 and 2, characterized in that said first base (15, 25) comprises said common portion (17, 27) and the second seat (14, 24), and in that said second base (16, 26) comprises said common portion (17, 27) and the first seat (13, 23), so that the two legs are adjacent and included in a four-sided polyhedron defined by four angles (A3, A4 , A5, A6).

4. Chair according to claim 3, characterized in that the first seat angle (Al) is between 95 ° and 110 ° and in that the second seating angle (A2) is between 130 ° and 145 °, so that the first angle (A3) of the polyhedron having for vertex that of the first seat angle (Al) is between 105 ° and 135 °.

5. Chair according to claim 4, characterized in that the second angle (A4) of the polyhedron having at the top the base of the common part (17, 27) resting on the ground and extending between the support plane on the ground (PI) defined by the first base and the ground support plane (P2) defined by the second base is between 100 ° and 120 °, so that the tilting of the chair between its two positions is effected on a angle between 60 ° and 80 °.

6. Chair according to claim 5, characterized in that the third angle (A5) of the polyhedron having at the top the base of the second seat (14, 24) resting on the ground is between 60 ° and 80 °, and in that that the fourth angle (A6) of the polyhedron having at the top the base of the first seat (13, 23) resting on the ground is between 60 ° and 80 °.

7. Chair according to any one of the preceding claims, characterized in that the ratio between the height (H2) of the second base and the height (Hl) of the first base is between 70 and. 90%.

8. Chair according to claim 7, characterized in that the height (Hl) of the first base is between 420 and 440 mm, and in that the height (H2) of the second base is between 310 and 350 mm.

9. Chair according to any one of the preceding claims, characterized in that the top of the first seat angle (Al) and the top of the second corner angle (A2) are merged.

10. Chair according to any one of claims 1 to 8, characterized in that the top of the first seat angle (Al) and the top of the second seat angle (A2) are offset in height.

11. Chair according to any one of the preceding claims, characterized in that it comprises a tubular structure (11, 21) and panels attached to said structure to form at least two seats (13, 14; 23, 24). and the file (12, 22).

12. Chair according to any one of claims 1 to 10, characterized in that it comprises a solid structure forming at least two seats and the backrest.