WO2008019809A1

WO2008019809A1 - Chair

Info

Publication number: WO2008019809A1
Application number: PCT/EP2007/007138
Authority: WO
Inventors: Pius Ponticelli
Original assignee: Pius Ponticelli
Priority date: 2006-08-18
Filing date: 2007-08-13
Publication date: 2008-02-21
Also published as: DE502007003535D1; EP2053942B1; ES2345010T3; ATE464812T1; DE102006038790A1; EP2053942A1

Abstract

The invention relates to a chair comprising a backrest (1) and a seat surface (2), which are arranged on a frame and whose height can be adjusted. According to the invention, the backrest (1) and the seat surface (2) are located on at least one common column (4, 4.1, 4.2, 4.3), which is telescopic or guided along at least one supporting column (14, 14.1, 14.2, 14.3), said column extending (4, 4.1, 4.2, 4.3) deep into the backrest (1) and being primarily concealed in or on the latter (1).

Description

chair

The invention relates to a chair with a backrest and a seat, which are arranged on a frame and adjustable in height.

State of the art

Chairs are known and used in a variety of forms and designs. In the present case, it is mainly about chairs in which the seat and / or the backrest are adjustable in height. Such a chair is shown, for example, in EP 0 726 045 A3. This chair has a chair frame to be placed on the floor with two retaining bars, which extend continuously substantially continuously from the front bottom to the back upwards. Seat and backrest are each connected to a holding device in height adjustably connected to the retaining bars. The two holding spars run on both sides of the seat, which is thus arranged between the retaining bars. The seat is arranged with a depth adjustment adjustable in the depth direction of the seat holding the holding Holmen holding device. This chair has the disadvantage that its base frame always has the same height.

A chair of the type mentioned above is further known from WO 97/16091. There, backrest and seat are arranged separately from each other on parts of a tubular frame and guided telescopically on this tube frame. The possibility of reducing the height of the entire chair is very limited here. Furthermore, an individual seat depth adjustment is not possible.

task

The object of the present invention is to obviate the above-mentioned disadvantages and to provide a chair which can be adjusted very individually and which grows with the user, for example for transport but can also be made very small. At the same time, the adjustability of the chair should be done in a simple way.

Solution of the task

To achieve the object, that the backrest and the seat are arranged on at least one common column, which is telescopically guided in or on at least one support column, wherein the column extends deep into the backrest and is largely hidden in or on the backrest.

In this chair thus backrest and seat are arranged on only one support column, but they are independently adjustable. That is, the distance between the backrest and seat and between

Seat and floor can be adjusted individually. This results also the possibility to reduce the total height of the chair to a minimum, which proves to be particularly favorable for transport. A large part of the column can be concealed in the backrest itself, but this also means that the backrest is adjustably arranged along the column. To fix the backrest in a desired height on the column corresponding plug or locking elements are provided, which can be configured as desired. For example, at least one side of a rectangular bracket can be arranged on the column, which abuts at least one side wall of a guide channel and there enters into the plug-in or latching connection with the wall of the guide channel. Further plug-in or latching elements are conceivable and are intended to be encompassed by the present invention.

From the design it is preferably provided that the guide channel is formed integrally with the backrest together. This means that the one or more guide channels are fully integrated into the backrest, so that even the guided in the guide channels columns disappear completely. Of course, however, a separate design of the elements is possible and therefore be encompassed by the present invention.

Furthermore, the column should also be fixable to the support column in different positions by at least one latching element. This locking connection can be configured arbitrarily. The latching element is preferably a pin which can be removed from the column and support column against the force of a helical spring. Again, other possibilities of locking elements are conceivable, which should be encompassed by the present invention.

The column and the support column can each be a tube, with the column of the support column being pushed. Both pillar as well

Support pillar may have a round or polygonal cross-section.

It is also conceivable that the column has the cross-section of the shape of a T. and is guided in a correspondingly shaped, undercut groove in the support column. Further embodiments of the column and the support column are conceivable and encompassed by the invention.

Another feature of the present invention relates to the fact that the seat is adjustable in depth. For this purpose, a support rail is fixed to the column, on which the seat surface slidably rests. In this case, a channel is provided in the seat, which receives a clamping block, in which engages a rotary handle, wherein a bolt of the rotary handle passes through the support rail. This embodiment of the adjustability of the seat depth is just one example, in the context of the invention, other possibilities.

Especially with small children, it is also desirable that a footrest is provided on the chair. In the context of the present invention is also that this footrest can be changed in height. For this purpose, the footrest should be removably fixed to the support column. Preferably, those holes are used to determine which are used for locking connection between the column and support column.

In a designmässig very successful embodiment of the inventive chair only one support column is provided. However, then the stand must be made stable accordingly. However, in order to achieve a higher stability and a higher level of comfort, the chair can be configured with two lateral support columns, which are preferably integrally connected to one another via a support bracket. On the free ends of the support columns then the columns described above are postponed and can be telescoped along the support columns.

By this novel chair a very variable seating is created, which grows with the user. The chair can largely be pushed into each other, so that its height is minimal.

On the other hand, he can be pulled very far apart, so he too adult users can serve as seating. He is very easy to handle and therefore inexpensive to manufacture.

figure description

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing; this shows in

FIG. 1 shows a side view of a chair according to the invention in the transport position or in the position of use for a small child;

Figure 2 is a side view of the inventive chair in its greatest possible height;

Figure 3 is a front view of the chair according to Figures 1 and 2 in a medium height and with attached footrest;

Figure 4 is a side view of the chair according to Figure 3;

Figure 5 is a side view of the chair according to Figure 4, wherein the removability of the footrest is shown;

Figure 6 is a front view of another embodiment of a chair according to the invention;

Figure 7 is a side view of the chair according to Figure 6;

Figure 8 is a side view of another embodiment of a chair according to the invention;

Figure 9 is a side view of the chair according to Figure 8 in a further position of use; Figure 10 shows a cross section through the chair according to Figure 9 in the region of a support rail for a seat.

According to FIGS. 1 and 2, a chair S according to the invention has a backrest 1 and a seat 2. Preferably, the backrest 1 consists of a plastic part, which is shaped like a shell. Laterally, two guide channels 3.1 and 3.2 (see FIG. 3) are formed in the backrest 1, which accommodate columns 4.1 and 4.2.

These columns 4.1 and 4.2 are in the guide channels 3.1 and 3.2 a snap or plug connection, so that the backrest 1 relative to the columns 4.1 and 4.2 can be changed in their position. For this purpose, each side of the columns 4.1 and 4.2, respectively, a bracket 5 is provided, which is provided at appropriate intervals with holes 6, in which a pin 7 is used.

Between the two columns 4.1 and 4.2 is a cross member 8, on the approximately centrally a support rail 9 is seated. On this support rail 9, the seat 2 is located. This seat 2 is relative to the mounting rail 9 slidably. For this purpose, a channel 10 is formed in the seat 2, which receives a clamping block 11. When moving the seat 2, the position of the clamping block 11 within the channel 10 changes.

To set the seat 2 relative to the support rail 9, a rotary handle 12 is provided. This rotary handle 12 passes through a bolt 13, the support rail 9 and engages with a thread not shown in detail in the clamping block 11 a. When turning the rotary handle 12, the clamping block 11 is pulled against the bottom of the channel 10 and this pressed onto the support rail 9.

The columns 4.1 and 4.2 are telescopically pushed two support columns 14.1 and 14.2. They also go with this support column 14.1 and 14.2 a latching connection, including corresponding spaced holes 15 in the support columns 14.1 and 14.2 are located. The latching connection is effected by a tension bolt 16, which is guided within the traverse 8, but attacked from the outside. This draw bolt 16 penetrates with a pin 17 a corresponding hole in the column 4.1 or 4.2 and one of the holes 15. Against the force of a coil spring 18, the pin 17 can be pulled out of this hole.

In Figures 3 and 4, a footrest 19 is still recognizable, which also receives on both sides with the support columns 14.1 and 14.2 a latching connection, as described above. Again, a corresponding spring-loaded tie bolt 20 is provided. The removability and displacement of the footrest 19 is indicated in FIG.

In the embodiment according to the figures 1 to 5, the two support columns 14.1 and 14.2 are otherwise connected by a bracket 21 with each other.

The operation of the inventive chair S is the following:

For a toddler or for his transport position, the chair S should have its lowest height. This is shown in FIG. Here, the columns are 4.1 and 4.2 entirely the support columns 14.1 and 14.2 postponed, so they almost strike the bracket 21. Furthermore, the columns 4.1 and 4.2 are also inserted as far as possible into the guide channels 3.1 and 3.2, so that the seat 2 is located just below the backrest 1. Furthermore, the seat 2 is moved far to the rear, so that this position of use is very well suited for a toddler.

The chair S according to the invention can now grow with a child, for example. For this purpose, as desired, the distance of the seat 2 from a floor but also from the backrest 1 can be adjusted. Of the

Distance of the backrest 1 of the seat 2 is changed by that the columns 4.1 and 4.2 are pulled out of the guide channels 3.1 and 3.2 and fixed at a desired location. For the determination of the distance between the seat 2 and the bottom of the telescopic connection between the columns 4.1 and 4.2 and the support columns 14.1 and 14.2 is extended. The determination at the desired position is then done by the operations of the locking connection described above.

In the course of increasing the distance between the backrest 1 and seat 2 and between seat 2 and bottom, the seat depth is increased, including by turning the rotary handle 12 of the clamping block 11 is released and the seat 2 is moved relative to the support rail 9.

If a footrest 19 is used, this should also be adapted to the size of the user of the chair S by the pull bolts 20 being actuated, the footrest 19 being removed from the support column 14.1 or 14.2 and being clipped on again elsewhere.

The embodiment of a chair S1 according to the invention according to FIGS. 6 and 7 provides only one support column 14, only one column 4 and only one guide channel 3. In this guide channel 3, the columns 4 is supported on both sides against corresponding channel walls on bracket 5.1 and 5.2. These brackets 5.1 and 5.2 have the above-mentioned holes 6. Otherwise, the operation of this embodiment is the same as described above.

Whereas according to FIGS. 1 to 7 the columns 4, 4.1, 4.2 and the support columns 14, 14.1 and 14.2 are of round cross-section, a column 4.3 according to the embodiment of a chair S2 according to the invention according to FIGS. 8 and 9 has the shape of a T. Pillar 4.3 is guided in an undercut groove 22, as shown in FIG. This groove 22 is located in a support column 14.3. Otherwise, the function of this embodiment is the same as described above. DR. PETER WEISS, DIPL-ING. A. BRECHT & DIPL.-FORSTW. PETRAARAT

Patent Attorneys European Patent Attorney

Reference: P3579 / PCT Date: 09.08.2007 ARΛ / I

LIST OF REFERENCE NUMBERS

Claims

claims

1. chair with a backrest (1) and a seat surface (2), which are arranged on a frame and adjustable in height,

characterized,

in that the backrest (1) and the seat surface (2) are arranged on at least one common column (4, 4.1, 4.2, 4.3) which is guided telescopically in or on at least one support column (14, 14.1, 14.2, 14.3) the column (4, 4.1, 4.2, 4.3) extends deep into the backrest (1) and is largely hidden in or on the backrest (1).

2. Chair according to claim 1, characterized in that the backrest (1) on the column (4, 4.1, 4.2, 4.3) is arranged along adjustable.

3. Chair according to claim 2, characterized in that the backrest (1) forms a guide channel (3, 3.1, 3.2), in which the column (4, 4.1, 4.2,

4.3) displaceable and can be fixed by plug-in or latching elements.

4. Chair according to claim 3, characterized in that the guide channel (3,

3.1, 3.2) is integrally formed with the backrest (1) together.

5. Chair according to claim 3, characterized in that on the column (4, 4.1,

4.2, 4.3) at least on one side a rectangular bracket (5, 5.1,

5.2) is arranged, which at least one side wall of the guide channel (3, 3.1, 3.2) rests and there with the wall of the guide channel (3, 3.1, 3.2) enters the plug-in or latching connection (6, 7).

6. Chair according to at least one of claims 1 to 5, characterized in that the column (4, 4.1, 4.2, 4.3) on the support column (14, 14.1, 14.2, 14.3) in different positions by at least one latching element (16, 17 , 18) can be fixed.

7. Chair according to claim 6, characterized in that the latching element is a pin (17) which against the force of a coil spring (18) from matching holes (15) of the column (4, 4.1, 4.2, 4.3) and the support column ( 14, 14.1, 14.2, 14.3) is removable.

8. Chair according to at least one of claims 1 to 7, characterized in that column (4, 4.1, 4.2) and support column (14, 14.1, 14.2) are each a tube, wherein the column (4, 4.1, 4.2) of the support column (14, 14.1, 14.2) is postponed.

9. Chair according to claim 8, characterized in that the column (4, 4.1, 4.2) and the support column (14, 14.1, 14.2) have a round or polygonal cross-section.

10. Chair according to at least one of claims 1 to 7, characterized in that the column (4.3) has the shape of a cross-sectionally T and in a correspondingly shaped, undercut groove (22) in the support column (14.3) is guided.

11. Chair according to at least one of claims 1 to 10, characterized in that the seat surface (2) is adjustable in depth.

12. Chair according to claim 11, characterized in that on the column (4, 4.1, 4.2, 4.3) a mounting rail (9) is fixed, on which the seat surface (2) slidably rests.

13. Chair according to claim 12, characterized in that in the seat surface (2) a channel (10) is provided, which receives a clamping block (11) into which a rotary handle (12) engages, wherein a bolt (13) of the rotary handle (12) passes through the mounting rail (9).

14. Chair according to at least one of claims 1 to 13, characterized in that on the support column (14, 14.1, 14.2), a footrest (19) is removably attached.

15. Chair according to at least one of claims 1 to 14, characterized in that on the backrest (1) two columns (4.1, 4.2) are provided which are guided in or on two support columns (14.1, 14.2).

16. Chair according to claim 15, characterized in that the two support columns (14.1, 14.2) by a support bracket (21) are interconnected.

17. Chair according to claim 16, characterized in that the support columns (14.1, 14.2) and the support bracket (21) are integrally formed.