EP0891145A1

EP0891145A1 - Chair

Info

Publication number: EP0891145A1
Application number: EP97915385A
Authority: EP
Inventors: Pius Ponticelli
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-19
Filing date: 1997-03-19
Publication date: 1999-01-20
Anticipated expiration: 2017-03-19
Also published as: DE19610714A1; ES2200167T3; WO1997034515A1; AU2288797A; DE59710176D1; ATE241303T1; EP0891145B1

Abstract

The invention concerns a chair with a seat (3), a backrest (2) and a base part (1, 28) comprising legs (5), the legs (5) being of different lengths and extending approximately in a star-shaped manner.

Description

S t u h l

The invention relates to a chair with a frame made of legs, a seat and a backrest.

Chairs are known in many forms and designs and are on the market. Their design depends primarily on their task and functionality, whether the chair is to be used, for example, as a normal chair, height-adjustable office chair or the like.

Especially for children's chairs, there are many different configurations, which are primarily geared towards adapting to the growth of the child.

The object of the present invention is to create a chair which can fulfill a very wide range of functions and at the same time has a very unique shape, which in turn has a very favorable effect on the stability and safety of the chair should. To achieve this object, the frame has legs of different lengths, approximately star-shaped.

In particular, it is contemplated to make the legs below the seat longer than the other legs. This gives the whole chair considerable security, since the chair cannot tip over these longer legs. The weight of the seated person's body lies just above these longer legs, so that the chair cannot fall forward even when a child tilts. To the rear and to the side, the legs protrude sufficiently far beyond the backrest that the chair can hardly fall over here either.

This division of legs of different lengths also takes into account the fact that, for example, young families generally have smaller apartments. Since the longer legs are arranged under the seat, they do not take up any additional space, the other legs can be made shorter, which significantly reduces the space occupied by the entire chair.

The legs converge in a center, from which a profile rises, to which the backrest is fixed. The seat is in turn arranged on the backrest. For the connection of the backrest to the frame, a collar-shaped wall is provided which runs around the center of the frame. This collar-shaped wall is preferably designed in such a way that it runs straight up from the legs, while the outer contour of the backrest is inserted into the collar-shaped wall in such a way that the collar-shaped wall runs out into the backrest. Since the backrest in a preferred embodiment is shaped like the body of an octopus, the appearance of an octopus results for the entire chair, as a result of which its aesthetic character is particularly influenced, without adversely affecting its functionality. This makes the chair particularly suitable for children.

In order to grow with a child, the seat should be adjustable in height. The present embodiment of a height adjustment is extremely easy to use, but is designed to be very effective and safe. For this purpose, the profile on which the backrest is also fixed is of rectangular cross-section and has a longitudinal profile slot.

A guide plate is slidably mounted in the profile itself, with sliding of this guide plate being supported by corresponding rollers. A strip protrudes from the guide plate through the profile slot and a slot in the backrest to the outside. A support plate is in turn connected to the strip, on which the seat or corresponding upholstery rests.

A brake plate and a clamping device are provided for releasably fixing the guide plate within the profile. The brake plate is located on the back of the guide plate and interacts with an inner rear wall of the profile. If the brake plate is pressed against this rear wall, the entire height adjustment is fixed. This is done by a clamping device, a clamping plate in the clamping position pressing against an inner surface of the profile opposite the rear wall of the profile, so that the brake plate is pressed against the rear wall by this pressure.

The clamping device is released by pivoting the clamping jaw away from the inner surface of the profile, as a result of which the brake plate is also released. For the sake of simplicity, the clamping jaw is pivoted away via a pivoting lever which is in the clamping position under the pressure of a spring which is supported, for example, against an underside of the seat or the support plate. The pressure of the spring can be released via levers, so that the clamping jaw or the clamping jaws are pivoted away from the inner surface of the profile on both sides of the profile slot. The guide plate can then be guided up or down along the profile.

In a further embodiment of the chair, the backrest can be assigned a headrest, the design of which is arbitrary.

Another feature of the present invention is directed to the use of the chair as a children's chair. A special child seat is provided for sitting a toddler, for which separate protection is desired, but which harmonizes excellently, in particular in connection with the design of the entire chair just described. This child seat consists of two parts which are telescopically connected to one another so that a space between a backrest and a front yoke can be changed. For this purpose, the backrest and front yoke are telescopically connected.

In a preferred embodiment, sleeve-like receptacles protrude from the backrest, in which rounded arms can slide. The receptacles and arms are connected to one another by corresponding releasable locking elements, so that the distance between the backrest and the yoke can vary. It goes without saying that the receptacles and arms can be of any design; they only have to allow a telescopic movement relative to one another.

The yoke is in turn detachably connected to the seat via an angle strip, with part of the angle strip being preferably engages under the support plate for the seat and is fixed there, for example by screws.

In this way, the chair according to the invention can be used for a toddler up to an adult. Thanks to its various adjustment options, it grows with the child. It is designed to be extraordinarily safe and diverse in its functionality.

In a further embodiment of the invention it is provided to create a support element for both children and adults and to connect it to the seat in such a way that a backrest or an armrest can be replaced at any time. An embodiment of such an element consists of an angular profile on which a sleeve is fixed obliquely. The angle profile is connected to the seat in any way, preferably via latching elements, so that the angle profile can be easily detached from the seat at any time and fixed at another location.

A push strip is slidably arranged in the sleeve and has bores which are to be brought into line with holes in the sleeve. The sleeve and push strip are fixed by means of corresponding latching elements, a bolt penetrating both a hole in the sleeve and a bore in the push strip.

Padding is fixed at one end of the push strip, a round piece being provided for this purpose, which is rotatably connected to the push strip. There is also the possibility that the round piece is rotatable in itself, that is, consists of two parts that can be rotated against each other.

With such a combined backrest or armrest element, the seat can easily be placed in one Child seat can be converted, with the two back cushions facing each other inside. If, on the other hand, the elements are detached from the seat and moved to the other side of the seat, then only the push strip needs to be pulled out of the sleeve and rotated by 180 ° to be inserted again by a further rotation of the poster around the round piece from a child seat Make chair with armrest. If, moreover, the angle between the upholstery and push strip is selected so that when the push strip is moved, the backrest immediately becomes an armrest, the round piece need not be designed to be rotatable, but can be firmly connected to the push strip.

Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and with reference to the drawing; this shows in

FIG. 1 shows a perspective view of a chair according to the invention;

Figure 2 is a plan view of a chassis of the chair according to Figure 1;

3 shows a plan view of a backrest of the chair according to FIG. 1;

FIG. 4 shows a cross section through a profile for connecting the backrest according to FIG. 3 to the chassis according to FIG. 2;

Figure 5 is a plan view of a height adjustment for a seat of the chair according to Figure 1;

FIG. 6 shows a side view of the height adjustment according to FIG. 5;

FIG. 7 shows a perspective view of a further exemplary embodiment of a chair according to the invention;

Figure 8 is a perspective view of a headrest;

FIG. 9 shows an exploded illustration of the headrest according to FIG. 8;

FIG. 10 shows a side view of the chair according to FIG. 7 with a seat according to the invention for a child;

FIG. 11 shows a side view of the chair according to FIG. 10 in a further position of use for a larger child; Figure 12 is an exploded view of the child seat.

FIG. 13 shows a side view of the chair according to FIG. 7 with a further exemplary embodiment of a seat for a child;

FIG. 14 shows a side view of the chair according to FIG. 7 with the exemplary embodiment of a seat for an older child;

FIG. 15 shows a side view of the chair according to FIGS. 13 and 14, the seat being converted into an armrest for a child;

FIG. 16 shows a side view of the seat according to FIG. 15 in a further position of use;

FIG. 17 shows an enlarged side view of a back or armrest according to the invention;

FIG. 18 shows a rear view of the back or armrest according to FIG. 17.

According to FIG. 1, a chair R has a frame 1, from which a backrest 2 projects, on which a seat 3 is fixed in a height-adjustable manner.

In the frame 1, 4 legs 5 protrude in a star shape from a center, four legs 5.1 to 5.4 being of approximately the same length, while the two front legs 5.5 and 5.6, which are arranged under the seat 3, are elongated. At the end, a rotating roller 6 is fixed on each leg 5.

The center 4 is delimited by a collar-shaped wall 7, in which the backrest 2 is seated in the position of use, the backrest 2 directly in the collar-shaped wall 7 passes over and this in turn runs out in legs 5. This gives the entire chair R the shape of an octopus. For this purpose, the backrest 2, as shown in FIG. 3, has approximately the contour of an egg, which is modeled on the body of the octopus.

The backrest 2 is fixed to the frame 1 via a profile 8, which is shown in FIG. This is a rectangular profile which is inserted into a corresponding receptacle 9 in the center 4 of the chassis 1. It then stands diagonally upwards, with the backrest 2 being pushed onto this profile 8. The backrest 2 is then fixed to the profile 8 using any fastening means or, for example, also by means of adhesion promoters.

However, the profile 8 has the further function that a height adjustment 10, as shown in FIGS. 5 and 6, can be arranged on it. This height adjustment 10 serves to adjust the height of a seat 11, which is only indicated by dots. This seat 11 is fixed on an approximately horizontal support arm 12. This support arm 12 has a support plate 13 outside the backrest 2 and an approximately vertical strip 14, which in its rear area extends through a slot 15 in the backrest 2 and a profile slot 16 in the profile 8 and there to a vertical guide ¬ approximately 17 meets. This guide plate 17 runs within the profile 8, its sliding being supported by rollers 18.

To fix the height adjustment 10, a brake plate 19 is provided on the back of the guide plate 17, which cooperates with a clamping device. The clamping device has two clamping jaws 20 in the interior of the profile 8, which presses on the inner surface 21 of the profile 8 in addition to the profile slot 16. As a result, a rear wall 22 of the Profiles 8 pressed against the brake plate 19. Clamping jaws 20 and brake plate 19 are preferably formed from a rubber-like material, so that the braking effect is thereby increased.

To release the clamping device, the clamping jaw 20 is pivoted away from the inner surface 21, which is done via a pivoting lever 23 which is articulated between two strips 24. On the one hand, this joint 25 is fixed to the pivoting lever 23 of the clamping jaws 20, the other end of the pivoting lever 23 is acted upon by a spring 26 which is supported against the support plate 13. This spring 26 can also be seen in FIG. 1, wherein the pressure of the spring 26 can be released by two levers 27.1 and 27.2. This then causes the clamping jaw 20 to pivot away from the inner surface 21 of the profile 8. The guide plate 17 can then slide within the profile 8, as a result of which the height of the seat 3 is adjusted.

In a further exemplary embodiment of a chair Rη_ according to FIG. 7, the chair has a rotatable frame 28 instead of a movable frame 1. This frame 28 is designed such that a larger part of the frame 28 is located under the seat 3. For this reason, legs 5.5 and 5.6 are longer than other legs 5.4 and 5.3. All in all, legs 5 are encircled and combined by a ring 29.

Furthermore, a headrest 30 is provided for this chair R] _, which is shown separately from the chair R _] _ in FIG. According to FIG. 9, it essentially consists of an inner support structure 31, which also gives the headrest 30 its outer shape. A cushion 32 and, if necessary, a cover 33 are fixed on this support structure 31. In FIGS. 10 and 11, a child seat 34 is additionally assigned to the seat 3. This consists essentially of two parts, as shown in Figure 12. One part has a backrest 35 from which receptacles 36.1 and 36.2 each project laterally. These recordings 36.1 and 36.2 should run approximately parallel and are designed as sleeves in the present case. They have a number of bores 37.

The receptacles 36 cooperate with telescopically adjustable arms 38.1 and 38.2 which, in the present exemplary embodiment, can be inserted into the sleeve-like receptacles 36 and slide therein. The arms 38.1 and 38.2 have locking elements 39.1 and 39.2, which in the present case are designed as push buttons and interact with the bores 37 in the receptacles 36.1 and 36.2. In this way, a space between the backrest 35 and a yoke 40 connecting the two arms 38.1 and 38.2 can be enlarged, whereby an adolescent child or his changing size is taken into account. This is shown in FIGS. 10 and 11.

To fix the child seat 34, an angle strip 41 is provided, which extends from the yoke 40 to below the support plate 13 and is fixed there. The fixing should preferably be done releasably so that the child seat 34 can be removed if it is no longer needed.

A further exemplary embodiment of a child seat 34.1 is shown in FIGS. 13 to 18. This child seat 34, 1 has two identical parts, only one of them being shown in FIGS. 17 and 18. Each part has an angular hollow profile 43 which can be connected to the support arm 12. It is preferred in one Inserted element of the support arm 12 and fixed there by a fastening or locking element.

A cross-sectional, approximately oval sleeve 44 is formed on the angular hollow profile 43 and extends at an angle to the angular hollow profile 43. This sleeve 44 has holes 45 through which a locking element 46 can be inserted. This locking element 46 engages with a pin 47 in bores 48 in a push strip 49, this push strip 49 being guided in the sleeve 44.

A round piece 50 is fixed on the pushing strip 49, which can possibly be rotated relative to the pushing strip 49 or in itself. If a suitable angle is selected for the push strip, the round piece can be fixed to the push strip.

On the round piece 50 there is a skeleton profile 51 on which an upholstery 52 is fixed. _£

The operation of this combined backrest or armrest 53 is as follows:

According to FIGS. 13 and 14, the back or armrest 53 serves as a backrest for a child. According to FIG. 14, it serves as a backrest for an older child, the push strip 49 in the sleeve 44 being displaced upward to the left, so that the larger body of the child can be taken into account.

By loosening a fastening or latching element, the entire back or armrest 53 can be removed from the support arm 12, rotated by 180 ° and connected again to the support arm 12 on the other side, but now in the rear area. Then only the padding 52 needs to be rotated into the horizontal position shown in FIGS. 15 and 16, so that it is there now the padding faces outwards, can serve as an armrest for adults. The armrest is also adjustable in height, as shown in FIG. 16.

Item number list

Claims

Patent claims

1. chair with a frame (1, 28) made of legs (5), a seat (3) and a backrest (2),

characterized,

that the frame (1, 28) has legs (5) of different lengths, approximately star-shaped.

2. Chair according to claim 1, characterized in that the legs (5.5, 5.6) below the seat (3) are longer than the other legs (5.1 - 5.4).

3. Chair according to claim 1 or 2, characterized in that the legs (5.1 - 5.6) converge in a center (4), from which a profile (8) rises, on which the backrest (2) is fixed.

4. Chair according to claim 3, characterized in that a collar-shaped wall is provided in the center (4) which merges into the backrest (2).

5. Chair according to claim 4, characterized in that the backrest (2) is shaped into the body of an octopus.

6. Chair according to one of claims 3-5, characterized thereby that a height adjustment (10) for the seat (3) is arranged in the profile (8).

7. Chair according to claim 6, characterized in that the height adjustment has a support arm (12) for the seat (3) which engages through an approximately vertical slot (15) in the backrest (2).

8. Chair according to claim 7, characterized in that the height adjustment (10) has a guide plate (17) which is arranged displaceably in the profile (8) and through a profile slot (16) with a support plate (13) for the seat (3rd ) connected is.

9. Chair according to claim 8, characterized in that the guide plate (17) rollers (18) are assigned.

10. Chair according to claim 8 or 9, characterized in that a brake plate (19) is arranged on the guide plate (17).

11. Chair according to claim 10, characterized in that a clamping device cooperates with the brake plate (19).

12. Chair according to claim 11, characterized in that the brake plate (19) presses against a rear wall (22) of the profile (8) when a clamping jaw (20) of the clamping device has an inner surface (21) of the profile opposite the rear wall (22) (8) pressurized.

13. Chair according to claim 12, characterized in that the clamping jaw (20) is attached to a pivot lever (23), the other end of which is acted upon by a spring (26).

14. Chair according to claim 13, characterized in that a joint (25) is provided between the jaw (20) and the spring (26).

15. Chair according to at least one of claims 1-14, characterized in that the backrest (2) is assigned a headrest (30).

16. Chair with a seat (3), characterized in that on the seat (3) a child seat (34) with a changeable space between a backrest (35), a yoke (40) and side arms (38.1, 38.2 ) is set.

17. Chair according to claim 16, characterized in that the backrest (35) laterally approximately parallel recordings

(36.1, 36.2) protrude, which interact telescopically with arms (38.1, 38.2) attached to the yoke (40).

18. Chair according to claim 17, characterized in that the receptacles (36.1, 36.2) are sleeve-like and have bores (37) for receiving latching elements (39).

19. Chair according to one of claims 16 - 18, characterized ge indicates that an angle strip (41) is provided between the seat (3) and yoke (40).

20. Chair with seat (3), characterized in that on the seat (3) two elements (53) can be fixed, which serve as a backrest and / or armrest.

21. Chair according to claim 20, characterized in that the elements (53) on each side of the seat are interchangeable and thereby change their function.

22. Chair according to claim 21, characterized in that a sleeve (44) is connected obliquely to an angular profile (43), in which there is a push strip (49) on which an upholstery (52) or the like is fixed.

23. Chair according to claim 22, characterized in that the push strip (49) relative to the sleeve (44) is fixed by rest elements (46).

24. Chair according to claim 22 or 23, characterized in that the padding (52) is rotatable relative to the push strip (49) or is firmly connected to the push strip (49) via a round piece (50).