EP3409144A1 - Chair, specifically conference or office chair and method of producing such a chair - Google Patents

Abstract

The present invention relates to a chair (1), in particular a conference or office chair, with a seat support (2); with a backrest support (3); with a memory element (8) designed as a force storage element; and with a the seat support (2) with the backrest support (3) coupling translation (5), which allows pivoting of the backrest support and the seat support with a predetermined movement between an upright and a rearwardly pivoted position, wherein the memory element designed as a memory element ( 8) is coupled to the seat support (2) and the back support (3) such that the predetermined movement is enabled and the storage member (8) provides a force returning to the upright position and wherein the flexible-elastic storage member (8) in common with at least a first articulated pivot point (10) of the translation (5) forms a kinematic chain (15). The present invention further relates to a process for its preparation.

Description

FIELD OF THE INVENTION

The present invention relates to a chair, in particular a conference or office chair, and a method for producing such a chair.

TECHNICAL BACKGROUND

Although the present invention, as well as the problem underlying it, will be described in more detail below with respect to office swivel chairs, it is not limited thereto but can be applied to a variety of chairs, in particular conference or office chairs.

Office swivel chairs exist with a variety of configurations of a pan or synchronous mechanism. A synchronous mechanism provides a precise sequence of movements and has an integrated spring, which provides a bias for the movement.

An office swivel chair with swivel mechanism is for example in the document US 2002/0149247 A1 described. Base and handlebars such a pivot mechanism are designed relatively massive. Overall, therefore, it requires a relatively large amount of space, so that the entire structure of such an office swivel chair below the seat support acts very massive, which is particularly disadvantageous in design aspects.

From the DE 10 2016 217503 one already knows a chair with contrast feinfliederigerer appearance, in which the backrest support and seat support have an articulated connection and in which the pivoting mechanism is realized with a arranged between the backrest support and the seat support power storage element in the form of a provided with a spring armrest support. At the chair in question therefore mandatory armrests are provided, also provides in the unloaded position of the Chair to be established bias by just these armrests is not always easy to handle configuration.

SUMMARY OF THE INVENTION

Against this background, the present invention seeks to provide an improved chair, in particular conference or office chair. The chair in question should be both high quality, as well as easy and cheap to produce. Due to these properties, alternative uses, for example in the private sector, can be opened up if necessary.

According to the invention, this object is achieved by a chair having the features of patent claim 1 and / or by a method having the features of patent claim 16.

• Ein Stuhl, insbesondere ein Konferenz- oder Bürostuhl, mit einer Sitzbasis, an welcher eine Trageinrichtung des Stuhls angeordnet ist, wobei die Trageinrichtung zumindest einen Sitzträger und zumindest einen Rückenlehnenträger aufweist; und wobei die Trageinrichtung mit einer den Sitzträger mit dem Rückenlehnenträger koppelnden Übersetzung versehen ist, welche ein Verschwenken des Rückenlehnenträgers und des Sitzträgers zwischen einer aufrechten und einer nach hinten verschwenkten Position mit einem vorbestimmten Bewegungsablauf erlaubt, wobei an der Übersetzung ein flexibel-elastisches Speicherglied vorgesehen und eingerichtet ist, welches bei Beaufschlagung der Trageinrichtung eine in die aufrechte Position rückstellende Kraft bereitstellt und wobei das flexibel-elastische Speicherglied gemeinsam mit wenigstens einem ersten gelenkigen Drehpunkt der Übersetzung eine kinematische Kette bildet.
• Ein Verfahren zur Herstellung eines Stuhls, mit den Schritten: Bereitstellen einer Trageinrichtung mit einem Sitzträger, einem Rückenlehnenträgers und einer den Sitzträger mit dem Rückenlehnenträger koppelnden Übersetzung, welche ein Verschwenken des Rückenlehnenträgers und des Sitzträgers mit einem vorbestimmten Bewegungsablauf zwischen einer aufrechten und einer nach hinten verschwenkten Position gestattet; Koppeln eines an der Übersetzung vorgesehenen und eingerichteten Speicherglieds mit der Trageinrichtung derart, dass der vorbestimmte Bewegungsablauf ermöglicht ist und durch das Speicherglied eine in die aufrechte Position rückstellende Kraft bereitgestellt wird, wobei durch das flexibel-elastische Speicherglied mit wenigstens einem ersten gelenkigen Drehpunkt der Übersetzung eine kinematische Kette gebildet wird.

Accordingly, it is provided:

• A chair, in particular a conference or office chair, with a seat base on which a carrying device of the chair is arranged, wherein the carrying device has at least one seat carrier and at least one backrest carrier; and wherein the support means is provided with a seat carrier to the backrest support coupling translation, which allows pivoting of the backrest support and the seat support between an upright and a backward pivoted position with a predetermined movement, wherein provided on the translation of a flexible-elastic storage member and is set, which provides upon application of the support means restoring a force in the upright position and wherein the flexible-elastic memory member together with at least one first articulated pivot point of the translation forms a kinematic chain.
• A method of making a chair, comprising the steps of: providing a support with a seat support, a seat back support, and a translation coupling the seat support to the seat back support, which pivoting the seat back support and the seat support at a predetermined rate of movement allowed between an upright and a backward pivoted position; Coupling a memory member provided on the translation and arranged with the support means such that the predetermined movement is enabled and provided by the storage member a restoring force in the upright position, wherein by the flexible-elastic memory member having at least a first articulating pivot of the translation kinematic chain is formed.

The idea underlying the present invention is a flexible-elastic memory element arranged in the region of the translation by means of which the chair in question is synchronously or synchronously pivotable as a force storage element for a predetermined sequence of movements during pivoting of the backrest support and thus coupled via the translation Insert seat carrier. For this purpose, the mentioned flexible-elastic memory member is coupled to the seat support and the backrest support. When pivoting the storage member is stretched and transmits such a the backrest support and the seat support of the support device in the upright position restoring force.
In this way, the storage member is able to replace a biasing spring in the translation area. Advantageously, the structure of the chair can thus be made much slimmer, which is aesthetically pleasing and thus advantageous from a design point of view. In the arrangement on the support means, the flexible-elastic memory member together with at least a first articulated pivot point of the translation forms a kinematic chain, so that the memory member according to the invention is integrated in an advantageous manner in the transmission of movements and torques in loading and unloading the chair according to the invention , The provided on the support storage member of the translation thus forms a planar gear.

In addition, such integration of a force accumulator with a storage member allows a novel overall design of the chair. In particular, therefore, other parts which are movable in the predetermined movement sequence can also have a certain flexibility. Thus, a new approach is taken with regard to the predetermined sequence of movements during the pivoting of the chair. Instead of predetermining a movement sequence of the translation of a synchronous mechanism as rigid as possible is now a predeterminable Flexibility of one or more parts involved in the predetermined movement. In this case, for example, the seat support of the support device can be integrated as part of the storage member and replace with the appropriate flexibility articulated pivot points of the kinematic chain. In turn, a flexible design of the parts advantageously permits a particularly slim design as well as the use of materials to be formed in a simple manner.

The translation is provided in particular as a replacement for a conventional synchronizing mechanism and preferably operates synchronously similar, so that when pivoting in a predetermined sequence of movements as described in a synchronous mechanism. Accordingly, the backrest support and the seat support pivot in a predetermined manner in each case in absolute terms and relative to each other. The seat support and the backrest support thus pivot different degrees. Furthermore, the seat support is preferably lifted slightly. The functionality of a synchronous mechanism with the known advantages, such as avoiding the shirt pull-out effect and the like, thus advantageously remains from a user's perspective.

In contrast to a conventional synchronous mechanism, on the other hand, it is particularly the case that the storage member designed as a force storage element also undergoes elastic deformation during the backward pivoting due to the ever increasing prestress and thus likewise describes a certain course of movement.

Advantageous embodiments and further developments will become apparent from the other dependent claims and from the description with reference to the figures of the drawing.

In this case, in advantageous embodiments of the chair according to the invention, the translation besides only the first articulated pivot also have the first and a second pivot point, which are part of the kinematic chain. As a result, the backrest support can be designed to be pivotable relative to two different arms or legs of the storage element, wherein one of these legs can form, for example, the seat support of the support device.

In another advantageous embodiment of the chair, the flexible-elastic memory member can image at least two pivot points of the kinematic chain or the memory member comprise at least two virtual pivot points. In this case, the storage member is for example designed so flexible that exposures of the chair are implemented by receiving a person sitting in elastic material deformations of the storage member, which can be reinterpreted mechanically in rotation about only virtually existing fulcrums. These virtual pivot points are arranged along the structure of the storage member, their juxtaposition with the real articulated pivot points of the translation forms a polygon and is combined with the articulated pivot points of the translation to the kinematic chain.

According to one embodiment, the translation is coupled to a seat base. The translation thus provides a force deflection between the backrest support, seat support and seat base and for this purpose has a first and a second pivot point, of which at least the at least one articulated pivot point of the transmission is coupled to the seat base and is fixed relative thereto. Furthermore, the translation can have a first virtual and a second virtual pivot point, which are encompassed by the memory element; the at least one articulated pivot point with a second articulated pivot point arranged on the memory element is connected to one another via a first link and the two virtual pivot points are connected to one another via a second link Coupled link, the first link is fixedly connected to the backrest support or formed integrally with the backrest support. This may therefore be a quadrangular, in particular parallelogram-like structure of the translation with one fixed to the seat base and the seat support hinged pivot point. In particular, the translation comes without sliding joint or slide guide and is thus free of scenes. In this way, the motion sequence of a synchronous mechanism is realized with a very slim design.
In addition, in a further advantageous embodiment, which has a same construction of the translation, the backrest support at the at least one articulated pivot point with respect to the seat base to be rotatably mounted, and the memory member or the associated seat support at a free end either with the second articulated Be provided pivot point at which this rotatably connected to the backrest support is, or be flexibly connected to the backrest support, in particular via a web. In the latter case, the connection of the seat support to the storage member formed a third virtual fulcrum and the translation then has only one "real" hinged fulcrum, namely the at least one previously mentioned.

In a preferred embodiment of the chair, as previously indicated, the flexible-elastic memory member connected to the seat support, formed on this or provided integrally formed therewith. In particular, the seat support of the chair can form part of the storage member and form by its elastic training a part of the force accumulator, which in turn builds up the restoring force and makes available.

Here, the storage member of the translation with an elastically deformable plastic material, in particular a fiber-reinforced plastic, be formed, which shows on the memory member in a suitable manner, the flexible elastic property.

In a preferred embodiment, the storage member having the seat support may have a curved shape, which in the rest position of the chair approximately at an acute angle between 1 ° and 40, preferably between 10 ° and 30 °, in particular of 25 °

For example, for the intended short-term support of a person sitting on the chair, at least one armrest carrier, in particular on each chair side in each case an armrest carrier may be arranged on the support means which or which may be connected to the seat support and / or the backrest support. The armrest carrier can also be interconnected, for example, a common connection can be performed below the seat support and connected in addition to this. The respective armrest support may be provided for supporting an armrest body or only an armrest pad. Alternatively, the armrest carrier can also directly form an armrest body.

According to an advantageous embodiment, the translation on a first stop, which limits a pivoting range of the seat support and backrest support in the upright position such that upon reaching the stop a backrest support and abuts the seat support in the upright position on the stop holding bias of the storage member. In particular, the backrest is upright in this position. In this way, a defined position of the backrest support is always guaranteed, even if the chair is unoccupied. For example, a preferred location for placement of the stop may be in the vicinity of the second hinged pivot, if present, so that the stop is close to the seat carrier. In this way, about a standing in contact with the stop handlebar would not be burdened with excessively strong moments.

In another advantageous embodiment, the translation on a second stop, which limits the pivoting range of the seat support and backrest support in a maximum pivoted position and / or the translation may be provided with a locking element, which seat support and backrest support in a selectable pivoted position against at least one Movement direction determines. Thus, it can be avoided on the one hand that the pivoting range to the rear exceeds a maximum pivoting angle, for example in the order of 20 °, on the other hand, the dynamics of the chair, if desired, be limited for a selectable period. This restriction or the definition can also refer to both directions of movement.

According to a preferred embodiment, the second articulated pivot point or a third virtual pivot point may be arranged in a rear area and the second virtual pivot point in a front area of the seat carrier, wherein the second link has a greater length and / or a greater inclination than the first link , In this way, the seat support is raised more in pivoting from the upright to the rearwardly pivoted position in the front region than in the rear region, so that the seat support is easily pivoted backwards.

In a preferred embodiment, the length and / or inclination of the first and second link are each provided such that a ratio of a pivot angle of the backrest support to a pivot angle of the seat support in the pivoted to the rear position 2 to 1 to 4 to 1, in particular 3 to 1 , is. For example In this context, the backrest support pivotable 21 ° to the rear, while the seat support is pivotable by 7 ° to the rear.

An independent height positioning of the sitting position allows, for example, a development in the chair according to the invention, in which a manipulatable height adjustment device is connected to the storage member, which can be actuated via a handle arranged in the region of the seat support and handle. It is able to manipulate a height adjustment device, for example in the form of a gas spring, according to the respective request, even when the chair is occupied.

In order to allow a decoupled movement of the seat relative to the seat support and thus with respect to the backrest support different depth, adjustable seating positions may be arranged in a further embodiment of the seat support, a seat member which is provided fixed or fixed or slidably provided by a guide means along the seat support , Such a guide means may be formed, for example, on the seat carrier (2) arranged guide or similar guide rail.

The above embodiments and developments can, if appropriate, combine with each other as desired. Further possible refinements, developments and implementations of the invention also include combinations, not explicitly mentioned, of features of the invention described above or below with regard to the exemplary embodiments. In particular, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention.

CONTENT OF THE DRAWING

Fig. 1

eine ebene Seitenansicht eines ersten Ausführungsbeispiels eines Stuhls in einer aufrechten Position mit einer Übersetzung mit zwei gelenkigen Drehpunkten;

Fig. 2

eine ebene Seitenansicht eines zweiten Ausführungsbeispiels eines Stuhls in einer aufrechten Position mit einer Übersetzung mit nur einem gelenkigen Drehpunkt;

Fig. 3

eine ebene Seitenansicht des Stuhls aus der Fig. 1 mit an der Übersetzung zusätzlich erkennbaren virtuellen Drehpunkten;

Fig. 4

eine perspektivische Seitenansicht eines Stuhls mit seiner Sitzbasis und einem Speicherglied, an welchem ein Sitzträger angeordnet ist;

Fig. 5

eine perspektivische Seitenansicht des Stuhls aus der Fig.4, an welchem ein Rückenlehnenträger mit dem Speicherglied verbunden ist;

Fig. 6

eine perspektivische Seitenansicht des Stuhls aus der Fig.5, an welchem ein Sitzträger mit dem Speicherglied verbunden ist;

Fig. 7

eine ebene Seitenansicht des Stuhls aus der Fig.3, mit der Tragreinrichtung einmal in der Ruheposition und einmal in der verschwenkten Position (strichliniert).

The present invention will be explained in more detail with reference to the exemplary embodiments indicated in the schematic figures of the drawing. It shows:

Fig. 1

a planar side view of a first embodiment of a chair in an upright position with a translation with two articulated pivot points;

Fig. 2

a planar side view of a second embodiment of a chair in an upright position with a translation with only one pivot point;

Fig. 3

a flat side view of the chair from the Fig. 1 with virtual pivots that are additionally recognizable at the translation;

Fig. 4

a side perspective view of a chair with its seat base and a storage member on which a seat support is arranged;

Fig. 5

a side perspective view of the chair from the Figure 4 to which a backrest support is connected to the storage member;

Fig. 6

a side perspective view of the chair from the Figure 5 to which a seat support is connected to the storage member;

Fig. 7

a flat side view of the chair from the Figure 3 , with the carrying device once in the rest position and once in the pivoted position (dashed lines).

The accompanying figures of the drawing are intended to convey a further understanding of the embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the stated advantages will become apparent with reference to the drawings. The elements of the drawings are not necessarily shown to scale to each other.

In the figures of the drawing are the same, functionally identical and same-acting elements, features and components - unless otherwise stated - each provided with the same reference numerals.

DESCRIPTION OF EMBODIMENTS

First, the Fig.1 to 3 Turning to this, they each show a designated as a whole with 1 chair, which is exemplified as office swivel chair with a stand 35 with rollers 26 is formed.

In each of the even side views of the Fig.1 to 3 is to recognize a chair 1, on which on a seat base 9, a support means 4 of the chair 1 is arranged. The support means 4 of the chair is provided with a seat support 2 and a backrest support 3 and with a seat support 2 with the backrest support 3 coupling translation 5. The translation 5 allows pivoting of the backrest support 3 and the seat support 2 between an upright and a backward pivoted position with a predetermined movement.

At the translation 5, a flexible-elastic memory member 8 is provided and adapted, which provides upon application of the support means 4 a restoring force in the upright position, also forms the flexible-elastic memory member 8 together with at least a first articulated pivot point 10 of the translation 5 a kinematic chain 15.

The mentioned kinematic chain 15 is the characteristic of the system formed by the gear ratio 5, which constitutes a gear and is responsible for the transmission of movements and torques. This is best based on the Figure 3 comprehensible to the chair of Fig.1 with its first pivot point 10 and its second articulated pivot point 11 shows next to it, the other virtual pivot points 12, 13, which are present in the structure of the memory member 8 and to perform which rotational movements the flexible-elastic memory member 8 due to its shape in Interaction with its material properties is capable.

Next you can see in the chairs 1 of Fig.1 and 3 Also, that the first pivot point 10 of the translation 5 coupled to the seat base 9 and is arranged relative to this fixed. The translation 5 has a first virtual and a second virtual Fulcrum 12, 13, which are encompassed by the storage member 8, and the first articulated pivot point 10 is coupled to the arranged on the memory member 8 second pivot point 11 via a first link 16, indicated by the dashed connection of the two pivot points 10, 11 in the Fig.1 and 3 , The two virtual pivot points 12, 13 are coupled together, via a second link 16, clarifies only in the Figure 3 by dashed lines. The dashed connection of the second articulated pivot point 11 with the one of the virtual pivot points 12 is merely to make clear their coupling to the kinematic chain 15. The aforementioned first link 16 is fixedly connected to the backrest support 3, in the Fig.1 and 3 he is even integrally formed with the backrest support 3.

In contrast, one recognizes in the Fig.2 a chair 1 according to the invention, in which compared to the representations of Fig.1 and 3 the second articulated pivot point 11 is replaced by a third virtual pivot point 14 at approximately the same place on the memory member 8 or seat support 2, which, as before the other virtual pivot points 12. 13, is integrated into the structure of the memory member 8, so that the kinematic Chain 15 is preserved. In this exemplary embodiment, three virtual pivot points 12, 13, 14, which comply with the requirements of shaping and the material properties, and only one "true" articulated pivot point 10 exist on the flexible-elastic memory element 8. The imageability into virtual pivot points 12, 13, 14 of the memory element 8 of the translation 5 to the chair 1 of Fig.2 is, as before with the Fig.1 and 3 the formation of the storage member 8 in an elastic deformable material, here attributable to a fiber-reinforced plastic material. This can be formed for example by a polyamide.

Now the 4 to 7 turning one recognizes in the Figure 4 first a partially constructed, inventive chair 1, the seat base 9, the support means 4 of the chair 1 is supported against the trained as a swivel base 35 with rollers 26 and this is coupled with a height-adjustable compression spring portion.

Partially constructed is the chair 1 in the Figure 4 In such respects, as shown on the support 4 initially only the translation 5 available storage member 8 is shown, which is fixedly connected to the seat base 9. In the perspective view of Figure 4 recognizes that the storage member 8 has a kind of curved frame 18, the frame portions 18a-18d rotate around a recess 19. In an imaginary plane projection from the side, similar to the views of the Figure 7 , Form the two sides of the chair associated frame sections 18b, 18c each for a curved frame side with an upper and a lower leg 20, 21, of which the lower leg 21 will form the second arm 16 of the kinematic chain 15 to be built on the chair. In this case, the storage member 8, which has a curved shape in the mentioned projection, in the rest position of the chair 1 with the two legs 20, 21 approximately at an acute angle in the order of 25 °.

Applying a bias to the memory member 8, this is in the Figure 5 with the backrest support 3 at two articulated pivot points 10, 11 which are connected by the first link 16 as part of the backrest support 3. In the Fig. 6 the chair 1 is also provided with a seat support 2, so that the seat support 2 and the backrest support 3 are coupled via the translation 5 of the storage member 8. It can further be seen that the backrest support 3 is rotatably mounted on the at least one articulated pivot point 10 with respect to the seat base 9 and that the storage member 8 or the seat support 2 connected thereto is provided with either the second articulated pivot 11 in an end region of its upper leg 20 is, on which it is rotatably connected to the backrest support 3.

In the embodiment of Fig.2 is not the coupling of this end portion of the upper leg 20 of the memory member 8 as in the Fig.5 to 7 realized via a second pivot point 11, but via a further virtual pivot point 15, so that the storage member 8 or the seat support 2 arranged thereon is rotatably connected to the backrest support 3 via a web 22. In the Fig.2 recognizes this, further, that the aforementioned web 22 then forms the first link 16, so this, in contrast to the embodiments with two articulated pivot points 10, 11, not "directly" part of the backrest support. But since in the embodiment of Fig.2 recognizable the memory member 8 is integrally formed with the backrest support 3, the first link 16 is formed at least in this sense as part of the backrest support 3. The upper leg 20 of the storage member 8 is with its free end, the web 22 and the Link 16 forms, with application of the bias voltage with the located in the region of the seat base 9, pivot point 10 is connected.

Next is in the Figure 5 and 6 also shown that the backrest support 3 is essentially formed by a backrest frame 30, which in turn rotates a recess 31 and, for example, a non-illustrated padding or a textile support braid can wear.

From the Figure 6 one takes, that in this case the flexible-elastic memory member 8 is connected to the seat support 2, which in turn with a in the Figure 7 shown seat cushion 32 can be equipped as a seat element. Not shown here is the sliding guide of the seat element.

The translation 5 of the storage member 8 determines the movement of the support means with the seat support 2 and the backrest support 3 in a pivoting from the upright position in a pivoted backward position, as they are common in the Figure 7 are shown, the latter position is shown in dashed lines. In this case, the storage member 8 can be seen formed and arranged such that it allows the predetermined by the translation 5 movement of the seat support 2 and the backrest support 3. Moreover, the storage member 8 provides the force returning to the upright position throughout the course of movement, moreover because of the bias coupling, this force will also be in the upright position.

Now again on all figures, especially the Figure 3 and 7 Referring to, it is clear that when the respective chair 1, for example, by a person settling on this, the backrest support 3 is pivoted to the rear by a pivoting angle, as it is particularly good Figure 7 can be seen. At the same angle, together with the backrest support 3, the first link 16 extending between the first and second articulated pivot points 10, 11 pivots. Due to the inclination of the first link 16 and the seat support 2, and thus the storage member 8, and the second link 17 is pivoted.

Both links 16 and 17 are inclined forward in both the upright position, as in the rearward pivoted position, so that a weight of a person sitting on the chair 1 person causes a restoring moment and designed as a force storage element storage member 8 thus only has to work against the backrest force , The pivoted backward position is achieved by a person sitting on the chair 1 person leaning backwards and thus applying a reclining force on the backrest support 3, which overcomes a spring force of the storage member 8.

The seat surface formed by the seat support 2 provided with a seat cushion 32 is slightly raised overall and in addition also pivoted, but to a much lesser extent compared to the backrest support 3. The memory member 8 is, as one also best in the Figure 7 recognizes, loaded in its tensioned state both on pressure and on bending and thus elastically compressed and bent. The pivoted to the rear position of the support means 4 is achieved by a person sitting on the chair 1 person leaning backwards and thus applying a reclining force on the backrest support 3, which overcomes a spring force of the storage member 8.

Despite a possible with the embodiments of the figures large swivel range all visible components of the chair 1, in particular the backrest support 3, the first arm 13, the seat base 9 and the second arm 14 and the seat support 2, very slim. The same applies to the storage member 8. In addition, no other components between the seat support 2 and the seat base 9 or between the seat support 2 and the backrest support 3 are arranged. Overall, this results in an enormously slim design, without losing functionality compared to a conventional synchronous mechanism.

Not shown in the drawing figures is a pivoting portion of the seat support 2 and backrest support 3 in the upright position limiting first stop and the pivoting portion of the seat support 2 and backrest support 3 in the pivoted position limiting second stop. These are in the region of the first or, if present, second articulated pivot point 10, 11 in the form of stop wedges provided, which are supported in the upright position and in the pivoted position at respectively suitable points.

The stops are arranged and designed such that, for example, when the first stop is reached, a bias of the storage member 8 holding the backrest support 3 and the seat support 2 in the upright position is still present. In this way, for example, a defined position of the translation 5, the seat support 2 and the backrest support 3 is ensured even in the upright position.

Although the present invention has been fully described above with reference to preferred embodiments, it is not limited thereto but is modifiable in a variety of ways.

LIST OF REFERENCE NUMBERS

1

chair

2

seat support

3

Backrest support

4

support means

5

translation

8th

memory element

9

seat base

10

first articulated pivot

11

second articulated pivot

12

further or first virtual pivot

13

another or second virtual pivot

14

further or third virtual pivot

15

kinematic chain

16

first handlebar

17

second handlebar

18

frame part

18a-18d

frame sections

19

recess

20

upper leg

21

lower thigh

22

web

25

blocking element

26

role

27

height adjustment device

30

Backrest frame

31

recess

32

seat cushion

35

stand

Claims (15)

Chair (1), in particular conference or office chair,
with a seat base (9) on which a carrying device (4) of the chair (1) is arranged, wherein: the carrying device (4) has at least one seat carrier (2) and at least one backrest carrier (3), - The support means (4) with a seat support (2) with the backrest support coupling translation (5) is provided, which pivoting of the backrest support (3) and the seat support (2) between an upright and a rearwardly pivoted position with a predetermined Movement allowed, - On the translation (5) a flexible-elastic memory member (8) is provided and arranged, which provides upon application of the support means (4) restoring a force in the upright position, - The flexible-elastic memory member (8) together with at least one first articulated pivot point (10) of the translation (5) forms a kinematic chain (15). Chair according to claim 1,
wherein the translation has the first (10) and a second pivot point (11). Chair according to claim 1 or 2,
wherein the flexible-elastic memory member (8) at least two further pivot points (12, 13) of the kinematic chain (15) images or the memory member (8) at least two virtual pivot points (12, 13). Chair according to claim 3,
wherein the at least one pivot point (10) of the gear ratio (5) is coupled to the seat base (9) and is fixed relative thereto, and wherein the gear ratio (5) has a first virtual and a second virtual pivot point (12, 12; 13) which are encompassed by the storage member (8), the at least one articulated pivot (10) having a second articulated pivot (11) disposed on the storage member (8) via a first link (16) and the two virtual pivots (12, 13) are coupled to each other via a second link (17), wherein the first link (16) fixed to the backrest support (3) or integrally formed with the backrest support (3). Chair according to claim 3 or 4,
wherein the backrest support (3) is rotatably mounted on the at least one articulated pivot point (10) with respect to the seat base (9) and the storage member (8) or the seat support (2) connected thereto at a free end either with the second articulated pivot point (11) is provided, on which it is rotatably connected to the backrest support (3), or with the backrest support (3), in particular via a web (17), is flexibly connected. Chair according to one of the preceding claims,
wherein the flexible-elastic memory member (8) connected to the seat support (2), formed on this or formed integrally therewith. Chair according to one of the preceding claims,
wherein the storage member (8) of the translation (5) is formed with an elastically deformable plastic material, in particular a fiber-reinforced plastic. Chair according to one of the preceding claims,
wherein the storage member (8) has a curved shape, which in the rest position of the chair (1) approximately at an acute angle between 1 ° and 40, preferably between 10 ° and 30 °, in particular of 25 °. Chair according to one of the preceding claims,
wherein at least one armrest support (18) is arranged on the support device (4) on at least one chair side, in each case on each chair side an armrest support (18) which is connected to the seat support (2) and / or the backrest support (3) are. Chair according to one of the preceding claims,
wherein the translation (5) has a first stop, which limits a pivoting range of the seat support (2) and backrest support (3) in the upright position such that upon reaching the stop a backrest support (3) and the seat support (2) in the upright position on the stop holding bias of the storage member (8) is present. Chair according to one of the preceding claims,
wherein the translation (5) comprises a second stop which limits the pivoting range of the seat support (2) and backrest support (3) in a maximum pivoted position and / or is provided with a locking element (21), which seat support (2) and backrest support ( 3) defines in a selectable pivoted position against at least one direction of movement. Chair according to one of claims 4 to 11,
wherein the length and / or inclination of the first and second links (16, 17) are each provided such that a ratio of a pivot angle of the backrest support (3) to a pivot angle of the seat support (2) in the pivoted to the rear position 2 to 1 to 4 to 1, in particular 3 to 1, is. Chair according to one of the preceding claims,
wherein a manipulatable height adjustment device (27) is provided and arranged, which can be actuated via a handle arranged in the region of the seat support (2) and handle; and or
wherein on the seat support (2) a seat element is arranged, which is fixable or fixed or slidably provided by a guide means along the seat support (2). Method for producing a chair (1), in particular a chair according to one of the preceding claims, comprising the steps: Providing a carrying device (4) with a seat carrier (2), a backrest support (3) and a translation (5) coupling the seat support (2) to the backrest support (3), which pivoting of the backrest support (3) and the seat support (2 ) is allowed with a predetermined movement between an upright and a backward pivoted position; Coupling a memory member (8) provided on the translation (5) with the support means (4) so as to allow the predetermined movement and provide a restoring force to the upright position by the storage member (8) -elastic storage member (8) having at least a first articulated pivot point (10) of the translation (5) a kinematic chain (14) is formed. Method according to claim 14,
wherein the storage member (8) at least in a planar projection has a curved shape with two legs (20, 21), which are connected at each articulated pivot point (10, 11) with the backrest support (3).

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