EP0891145B1 - Chair - Google Patents

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

The invention relates to a chair with a frame a seat, a backrest and legs all in one Center converge, of which a profile arises the backrest and the seat with a height adjustment are arranged.

Chairs are known in many forms and designs on the market. Your design is aimed above all according to their task and functionality, whether the chair for example as a normal chair, height adjustable Office chair or the like. Application should be.

There are many, especially for children's chairs Refinements that are mainly in their mechanism to adapt to the growth of the child.

From FR-A-2 163 306 a chair is known in which in a center, four legs converge, the lower the legs provided elongated training are.

DE 195 19 739 Al is a piece of seating furniture of the abovementioned. kind with a seat and one held on a carrier element Backrest recognizable, with seat and backrest in their Height adjustable and the backrest in relation to the Seat is horizontally adjustable to the seat of the To enlarge or reduce the seat.

A similar chair is also known from WO95 / 07641 the profile on both legs at least one backrest as well as a seat are slidably arranged.

The present invention is based on the object to create a chair that has very diverse functions can fulfill and at the same time in its shape very is peculiarly designed, this shaping itself again very cheap on stability and Impact security of the chair and the chair with one Child should grow with them.

The frame leads to the solution of this task legs of different lengths, approximately star-shaped has and the profile is integrated in the backrest and the height adjustment a support arm for the seat has, which by an approximately vertical Reaches through the slot in the backrest and with the Profile is connected.

The present embodiment of a height adjustment is extremely easy to use, but very designed effectively and safely. For this purpose the profile to which the backrest is attached, cross-sectionally rectangular and has one longitudinal profile slot.

A guide plate is slidable in the profile itself stored, with a sliding of this guide plate still is supported by appropriate roles. Of the A guide strip protrudes through the profile slot and a slot in the backrest to the outside. With the Strip is in turn connected to a support plate which the seat or a corresponding upholstery rests.

For releasably fixing the guide plate inside the Profils is on the one hand a brake plate and on the other hand one Clamping device provided. The brake plate is located on the back of the guide plate and works with one inner rear wall of the profile together. Will the brake plate pressed against this back wall, so is the whole Fixed height adjustment. This happens through a Clamping device, with a clamping plate in the clamping position against an inner surface opposite the rear wall of the profile of the profile so that the pressure Brake plate is pressed against the rear wall.

The clamping device is released by pivoting the Clamp from the inner surface of the profile, which also the brake plate is released.

Swiveling the jaw away is done for simplicity for the sake of a swivel lever, which is in the clamped position under the Pressure of a spring stands, for example, against a Underside of the seat or the support plate supports. about Lever can release the pressure of the spring so that the jaw or the jaws from the inner surface of the Profile swung away on both sides of the profile slot. The guide plate can then go up along the profile or be led down.

The legs below the seat are designed to train longer than the rest of the legs. This makes the whole chair one given significant security as the chair over this longer trained legs can not tilt. The weight the body of the seated person lies longer over it trained legs, so that, for example, with one Tilting of a child does not cause the chair to fall forward is possible. The legs stand to the rear and to the side sufficiently far beyond the backrest so that too it is hardly possible to drop the chair here.

Furthermore, this division of the different long legs taken into account that for example young families usually own smaller apartments. There the longer legs are arranged under the seat, don't take up additional space that other legs can be made shorter, which makes the the space occupied by the entire chair is significantly reduced becomes.

The legs converge in a center from which the Profile rises, on which the backrest is fixed. At the The backrest is the seat. For the The backrest is connected to the frame collar-shaped wall provided the center of the frame circulates. This collar-shaped wall is preferably like this designed to go straight up from your legs runs while the backrest is in its outer contour is inserted into the collar-shaped wall so that the collar-shaped wall runs into the backrest. Since the Backrest in a preferred embodiment example The body of an octopus is reshaped Appearance of an octopus for the entire chair whose aesthetic idiosyncrasies are particularly influenced, without negatively affecting his Functionality is coming. This makes the chair especially for Children very suitable.

Figur 1 eine perspektivische Ansicht eines erfindungsgemässen Stuhles;

Figur 2 eine Drauf sicht auf ein Fahrgestell des Stuhles gemäss Figur 1;

Figur 3 eine Draufsicht auf eine Rückenlehne des Stuhles gemäss Figur 1;

Figur 4 einen Querschnitt durch ein Profil zur Verbindung der Rückenlehne gemäss Figur 3 mit dem Fahrgestell gemäss Figur 2;

Figur 5 eine Draufsicht auf eine Höhenverstellung für einen Sitz des Stuhles gemäss Figur 1;

Figur 6 eine Seitenansicht der Höhenverstellung gemäss Figur 5;

Figur 7 eine perspektivische Ansicht eines weiteren Ausführungsbeispiels eines erfindungsgemässen Stuhles;

Figur 8 eine perspektivische Ansicht einer Kopfstütze;

Figur 9 eine explosionsartige Darstellung der Kopfstütze gemäss Figur 8.

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

Figure 1 is 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.

According to FIG. 1, a chair R has a frame 1, of which a backrest 2 rises, on which a seat 3 adjustable in height.

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

The center 4 is surrounded by a collar-shaped wall 7 limited, in the use position the backrest 2 sits, the backrest 2 directly into the collar-shaped wall 7 passes over and this in turn runs out in legs 5. This makes the entire chair R the shape of an octopus given. For this purpose, the backrest 2 also has as shown in Figure 3, roughly the contour of an egg, which is modeled on the body of the octopus.

The backrest 2 is fixed on the frame 1 via a profile 8, which is shown in Figure 4. This is a rectangular profile, which in a corresponding receptacle 9 in the center 4 of the Chassis 1 is used. It is then at an angle above, with the backrest 2 on this profile 8 is postponed. Fixing the backrest 2 on the Profile 8 is then done using any fasteners or, for example, through adhesion promoters.

However, the profile 8 has the further function that him a height adjustment 10 can be arranged, such as it is shown in Figures 5 and 6. This Height adjustment 10 is used for height adjustment only dotted indicated seat 11. This seat is 11th fixed on an approximately horizontal support arm 12. This Support arm 12 has a support plate 13 outside of Backrest 2 and an approximately vertical one Strip 14, which in its rear area by a Slot 15 in the backrest 2 and a profile slot 16 reaches through in the profile 8 and there on a vertical Guide plate 17 hits. This guide plate 17 runs within the profile 8, their sliding rollers 18 is supported.

To set the height adjustment 10 is on the back the guide plate 17, a brake plate 19 is provided cooperates with a clamping device. The Clamping device has two clamping jaws 20 inside the Profile 8 on the next to the profile slot 16 on a Inner surface 21 of the profile 8 presses. This will create a Back wall 22 of profile 8 against brake plate 19 printed. Clamping jaws 20 and brake plate 19 are preferred formed from a rubber-like material, so that this the braking effect is increased.

To release the clamping device, the clamping jaws 20 of the inner surface 21 pivoted away, what about a Swing lever 23 happens between two strips 24 is articulated. On the one hand this joint 25 is on the pivot lever 23 of the jaws 20 set that the other end of the pivot lever 23 is supported by a spring 26 acts, which is supported against the support plate 13. This spring 26 can also be seen in Figure 1, the Pressure of the spring 26 by two levers 27.1 and 27.2 can be canceled. This then takes place Swinging the jaw 20 away from the inner surface 21 of the Profile 8. Then the guide plate 17 within the Profile 8 slide, causing the seat 3 in height is adjusted.

In a further exemplary embodiment of a chair R ₁ according to FIG. 7, it has a rotatable frame 28 instead of a movable frame 1. This frame 28 is equipped so that a larger part of the frame 28 is located under the seat 3. Therefore, the legs 5.5 and 5.6 are equipped 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 in this chair R ₁ , which is shown separately from the chair R ₁ 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.

Claims (10)

1. Chair, having a frame (1, 28) formed from a seat (3), a backrest (2) and legs (5), which converge in a centre (4), and from which there protrudes a profile (8), on which the backrest (2) and the seat (3), provided with a vertical adjuster (10), are disposed, characterised in that the frame (1, 28) has legs (5) which are of different lengths and extend substantially in a star-shaped manner, and the profile (8) is incorporated in the backrest (2), and the vertical adjuster (10) has a supporting arm (12) for the seat (3), which supporting arm extends through a substantially vertically extending slot (15) in the backrest (2) and is connected to the profile (8).
2. Chair according to claim 1, characterised in that the vertical adjuster (10) has a guide plate (17), which is displaceably disposed in the profile (8) and is connected to a supporting plate (13) for the seat (3) through a profile slot (16).
3. Chair according to claim 2, characterised in that castors (18) are associated with the guide plate (17).
4. Chair according to claim 2 or 3, characterised in that a retarding plate (19) is disposed on the guide plate (17).
5. Chair according to claim 4, characterised in that a clamping device co-operates with the retarding plate (19).
6. Chair according to claim 5, characterised in that the retarding plate (19) presses against a rear wall (22) of the profile (8) when a clamping jaw (20) of the clamping device pressurises an internal surface (21) of the profile (8), which internal surface is situated opposite the rear wall (22).
7. Chair according to claim 6, characterised in that the clamping jaw (20) is mounted on a pivotal lever (23), the other end of which lever is acted upon by a spring (26).
8. Chair according to claim 7, characterised in that a pivot joint (25) is provided between clamping jaw (20) and spring (26).
9. Chair according to at least one of claims 1 to 8, characterised in that a collar-like wall is provided in the centre (4), which wall extends into the backrest (2).
10. Chair according to claim 9, characterised in that the backrest (2) resembles the body of an octopus.

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