DE202004020530U1 - Chair e.g. office chair, has backrest support connected with frame of backrest through three fixing points that are provided on respective arms of support, where height adjustment of backrest is integrated to lower region of support - Google Patents

Abstract

The chair has a seat support that is supported by a foot rest, and a Y-shaped backrest support (1) attached to the seat support for supporting a backrest of the chair. The support (1) is connected with a frame of the backrest through three fixing points (2, 3, 4) that are provided on respective arms (6, 7, 8) of the support (1). The backrest has a height adjustment that is integrated to a lower region of the support (1).

Description

The The invention relates to a chair, in particular an office chair, with a pedestal, one from the pedestal towering chair column, a supported on the foot column seat support with a seat mounted thereon and one attached to the seat carrier Backrest support for Attachment of the backrest of the chair.

Of the Invention is based on the object to offer a chair at the backrest wearer especially safe and easy to install connected to the backrest.

These Task is characterized by a chair with the characteristics of the characteristic Part of claim 1 in conjunction with the features of Topic solved. Advantageous embodiments of the chair are described in the subclaims 2-9.

Of the inventive chair has a backrest support that at least three attachment points connected to the backrest of the chair is. As a result, the chair according to the invention is easy to install trained and it must be Connection of the backrest support with the backrest only in particular exactly three attachment points at the three attachment points for establishing the connection between backrest support and backrest to be edited. This is the chair of the invention particularly easy to install and can be used within the shortest possible time Time to be mounted.

To In a particularly advantageous embodiment, the backrest support is in particular behind Formed about a Ypsilon and has on each of the three Arms of the Ypsilons an attachment point, thus altogether exactly three attachment points.

In In this case, there is a central bottom attachment point and two left and right above it upper attachment points, in each case in particular in the end regions the three arms of the Ypsilon.

To a first further embodiment directly on the backrest support Skidding (with or without upholstery) as a backrest or a plastic back (with or without padding) attached to the backrest support become.

To a further embodiment can the backrest wearer with its three attachment points be attached to a frame, the one with a mesh overlay to form a compliant and elastic backrest (so-called "mesh back") is provided.

By the attachment of the backrest support such frame becomes the frame at three attachment points fixed exactly. In the middle areas of the frame in which If the mesh covering is located, the mesh covering can within certain Travels be stretched elastically. By attaching the backrest support in Edge of the frame, namely is at a left, a right and a lower frame part a particularly advantageous embodiment for such backrests created with mesh, since this the desired freedom of movement of the mesh back in the middle range by more or less heavy load of the leaning back User of the chair allows becomes.

at direct attachment of the backrest support the backrests made of wood or plastic ensures an advantageous introduction of forces, by the user of the chair by loading the backrest be applied. These are over the backrest at three attachment points in the backrest support and with it in the seat carrier initiated.

Especially in training the backrest support in Shape of a wye can so also outside the middle area of the backrest initiated forces reliable detected and about the Backrest support in the seat support be derived.

To In another advantageous embodiment, the frame is approximately square shaped. Such a geometric shape corresponds in particular with a trained as Ypsilon backrest support, the then at the three attachment points on a left, right and a lower portion of the frame is attached. The frame can also be oval or round.

To a further advantageous embodiment is in a lower Area of the backrest support one height adjustment the backrest integrated. This allows the entire backrest support against the seat support be moved up or down to one for the user to achieve a comfortable sitting position.

The sitting comfort of the chair according to the invention can be further increased by the fact that a lumbar element is attached to the backrest support. By a depth adjustment of such a lumbar element, an individual adjustment of the position of the lumbar element to the Be the needs of the user of the chair.

A Such depth adjustment can be done via a screw in integrated the backrest support be so that at activity the screw mechanism the lumbar element against the backrest support in one recessed middle or extended position according to the needs of the User can be attached.

The Invention is based on an embodiment further explained in the drawing figures. Show it:

1 a view of the backrest support with attached frame,

2 a side view of 1 .

3 a section AA of 1 .

4 a section CC of 2 .

5 a top view 1 such as

6 a section BB of 1

1 shows without illustration of a known per se chair (eg according to EP 0 635 228 B1 . 1 ) With its parts seat, seat support, seat post and base a backrest support according to the invention 1 with one foot 13 for attachment to a seat carrier, the backrest support 1 at the three attachment points 2 . 3 and 4 with a backrest, here a frame 5 for covering with a network is connected.

Instead of the frame 5 can also be directly on the backrest support 1 a wooden back (with or without upholstery) as a backrest or a plastic back (with or without padding) be attached (not shown).

The backrest carrier 1 has approximately the shape of a Ypsilons with a first side arm 6 , a second side arm 7 and a down-facing arm B. The attachment points 2 . 3 and 4 are in the arms 6 . 7 and B.

there the term "attachment point" is to be understood generally and may consist of one or more locally concentrated attachments, e.g. Screw connections exist.

In addition, has the backrest support 1 to 1 a lumbar element 9 which provides support in the lumbar spine area to support the user's back. The lumbar element 9 is in a central area 10 of the mounting bracket - here between the arms 6 and 7 - on the backrest support 1 appropriate.

A particularly advantageous effect of the chair with backrest support 1 and lumbar element 9 arises when the backrest wearer 1 on a frame 5 is attached and the frame 5 is covered with a seat net (so-called "net back"). This seat net is somewhat bent and stretched under load, so that then the burdening back in the lumbar region on the lumbar element 9 can rest.

2 shows the lumbar element 9 that towards 16 was delivered. The lumbar element 9 is with the backrest support 1 via a screw connection known per se with a set screw 17 connected.

According to a further advantageous embodiment, the backrest support 1 an integrated height adjustment (see eg 4 ), wherein by operation of a known switching element 11 in the direction 12 a vertical displacement of the backrest support 1 opposite the foot 13 of the backrest wearer 1 in the direction 15 can be done.

The 2 . 3 . 4 . 5 and 6 show specified views according to the illustration 1 , wherein identical reference numerals also designate identical parts.

1

Backrest support

2

fastening point

3

fastening point

4

fastening point

5

frame

6

poor

7

poor

8th

poor

9

Lordosenelement

10

Central area

11

switching element

12

direction

13

foot

14

Area

15

direction

16

direction

17

screw

Claims (9)

Chair, in particular office chair, with a base frame, a chair column projecting from the base frame, a seat support supported on the foot column with a seat mounted thereon and a backrest support attached to the seat support Attaching the backrest of the chair, characterized in that the backrest support ( 1 ) at least three attachment points ( 2 . 3 . 4 ) is connected to the backrest. Chair according to claim 1, characterized in that the backrest support ( 1 ) is formed in the shape of a Ypsilon and at each of the three arms of the Ypsilons an attachment point ( 2 . 3 . 4 ) having. Chair according to one of the preceding claims, characterized in that the three attachment points ( 2 . 3 . 4 ) are mounted directly on the backrest. Chair according to one of the preceding claims, characterized in that the three attachment points ( 2 . 3 . 4 ) on a frame attached to the backrest ( 5 ) are attached. Chair according to claim 4, characterized in that the frame ( 5 ) is formed approximately square. Chair according to one of the preceding claims, characterized in that in a lower region of the backrest support ( 1 ) a height adjustment of the backrest is integrated. Chair according to one of the preceding claims, characterized in that the backrest support ( 1 ) a lumbar element ( 9 ) is attached. Chair according to claim 7, characterized in that the lumbar element ( 9 ) is depth adjustable. Chair according to claim 8, characterized in that the depth adjustment of the lumbar element ( 9 ) via a screw mechanism in the backrest support ( 1 ) is integrated.