EP3403534B1 - Seating device - Google Patents

Description

The invention relates to a seat device.

Usual seat devices include the actual seat element, which is connected to a stand element via a support element. With the help of the stand element, the seat device can be set up on a corresponding stand surface.

It is known to arrange the seat element rotatably on the support element, so that a user sitting on the seat device can turn to the right or left. It is also known to enable the seat element to pivot, in particular to the rear, if the seat element has a backrest.

The various movements of the seat element are usually realized with the aid of an assembly provided between the seat element and the support element, which is referred to as the “seat mechanism” and for this purpose often has a complicated structural design. This is particularly the case with office chairs and with other seating devices with similar functional properties.

KR 101 171 883 B1 discloses a prior art seat device. The object of the present invention is to provide a seat device in which a defined rotational and pivoting movement of the seat element is made possible without a seat mechanism functional unit having to be arranged between the seat element and the support element.

This object is achieved by a seat device according to claim 1.

The seating device according to the invention comprises a combined rotating and swiveling device for rotating and swiveling an assembly of the seating device, this assembly comprising the seat element of the seating device, and wherein the rotating and swiveling device is arranged remote from the seating element of the seating device, namely near a base of the seating device , The seat device comprises a stand element which can be set up on the base, a support element connected to the stand element and a seat element carried by the support element, the rotating and pivoting device connecting the stand element to the support element and the support element and the seat element being parts of the rotatable and pivotable assembly are. The rotating and swiveling device has a base body and a swivel head connected to the supporting element, the base body being rotatably mounted on the stand element about an axis of rotation and the swivel head being connected to the base body and relative to the base body on a swivel path around a below the standing surface arranged virtual pivot axis of the seat device is pivotable.

Advantageous embodiments of the invention are specified in the subclaims.

A first basic idea of the invention is to arrange a rotating and swiveling device for rotating and pivoting the seat element away from the seat element of the seat device, namely near a standing surface of the seat device. One arranged between the seat element and the support element Seat mechanism functional unit for realizing the rotating and swiveling device is therefore no longer required.

Since the rotating and pivoting device is thus provided on or in the stand element or in any case in the vicinity of the stand element, it is located in the lower region of the support element, preferably at the lower end of the support element. This means that the turning and swiveling affects not only the seat element itself, but an assembly comprising the seat element, this assembly preferably comprising the seat element and the support element. In other words, when rotating and / or swiveling, both the seat element and the support element are also moved. For this purpose, the support element is preferably firmly connected to the seat element. Only the stand element remains motionless.

The seating device can be any piece of seating, in particular a chair. However, the seating device can also be designed as an armchair, stool, etc.

The seat element can, for example, be a seat support provided with upholstery with or without a backrest or a seat shell comprising a seat and backrest. But any other design of the seat element is also conceivable. Thus, even if this is not necessary for realizing the rotating and swiveling movement, the seat element can nevertheless have a seat mechanism functional unit, with the aid of the rotating and swiveling movement provided according to the invention, further movements of the seat element can be realized.

The support element can be, for example, a pedestal that can be made height-adjustable. The support element can be connected in one piece to the seat element. Instead of a stand column, however, differently shaped support elements can also be used, for example V-shaped or U-shaped support elements or the like, which are connected to the seat element at a plurality of spaced-apart points. However, the support element preferably always has a defined lower end in the sense of a lower end point, which is connected to the stand element via the rotating and pivoting device.

The stand element is preferably a stand. This can be designed as a round or square plate or as a star base with three, four, five legs, etc.

The seat element, together with the support element, is rotatably mounted in the fixed base with the aid of the combined rotating and pivoting device, the axis of rotation preferably being the central longitudinal axis of the support element or the axis of rotation extending in the longitudinal direction of the support element.

A second basic idea of the invention is to implement the combined rotating and swiveling device in such a way that a base body is provided which is rotatably mounted on the stand element about an axis of rotation, relative to which a swivel head connected to the support element is arranged on an arcuate swivel path around a one arranged below the standing surface , virtual pivot axis is pivotable. The pivot axis, which is as far away from the seat element as possible, which according to the invention is not provided within or at the height of the combined rotating and pivoting device or within or at the height of the stand element, but further away from the seat element, namely below the stand surface a comparatively large radius of the swivel path enables on which the swivel head moves relative to the base body. This results in a movement of the seat element which, in the case of a correspondingly flat swivel path, approximates a translatory movement, but in any case precludes the seat element from being strongly tilted. As a result, when the assembly comprising the seat element is pivoted backwards, for example when leaning against a backrest connected to the seat element, the front seat edge is not pressed into the thighs. Such an impression is regularly perceived by users of the seat device as unpleasant. The invention thus also provides a seat device in which a comparatively flat pivoting movement of the seat element which is perceived as pleasant by the user is made possible without the seat element being tilted sharply.

In addition, due to the position of the virtual swivel axis below the base, an extremely flat, slim design of the rotating and swiveling device is possible. The rotating and swiveling device can, for example, be connected to the stand element or be integrated into the stand element in such a way that it is not recognized from the outside as a separate functional unit. In this way, particularly minimalist chair designs, etc. can be realized.

At the same time, the rotating and swiveling device is preferably designed such that, regardless of the rotational position of the rotatable and swiveling assembly, swiveling of the support element and thus of the rotatable and swiveling assembly, including the seat element, is always possible only in a single defined direction with respect to this assembly is. As a result, the entire assembly is tilted in the correct direction above the base. At the same time, a rotation of the support element is possible without the permissible swivel direction changes. In other words, the pivoting direction is fixed relative to the seat element. Regardless of how far a user of the seat device has turned to the right or left, pivoting is therefore only ever possible to the rear, for example in the direction of the backrest. An unintentional tilting of the seat element to the right or left, as would otherwise be feared in the twisted state, is thereby reliably avoided.

Fig. 1

eine stilisierte Darstellung einer Sitzvorrichtung in Seitenansicht,

Fig. 2

verschiedene Formen von Tragelementen in Seitenansicht,

Fig. 3

eine perspektivische Ansicht des Standelements mit der Dreh- und Schwenkvorrichtung,

Fig. 4

eine perspektivische Ansicht der Dreh- und Schwenkvorrichtung mit abgenommener Gehäuseoberseite,

Fig. 5

eine perspektivische Ansicht einer Grundkörperhälfte mit einliegendem Schwenkkopf,

Fig. 6

eine perspektivische Ansicht eines Schwenkkopfes,

Fig. 7

einen ersten Vertikalschnitt durch die Komponenten des Standelements und der Dreh- und Schwenkvorrichtung,

Fig. 8

einen zweiten Vertikalschnitt durch die Komponenten des Standelements und der Dreh- und Schwenkvorrichtung in Grundstellung des Schwenkkopfes,

Fig. 9

den Vertikalschnitt aus Fig. 8 in einer Schwenkstellung des Schwenkkopfes.

A more detailed description of the structure of the rotating and pivoting device and its function are explained in more detail below using an exemplary embodiment of the invention with reference to the drawings. Here show:

Fig. 1

a stylized representation of a seat device in side view,

Fig. 2

different forms of support elements in side view,

Fig. 3

a perspective view of the stand element with the rotating and pivoting device,

Fig. 4

2 shows a perspective view of the rotating and swiveling device with the top of the housing removed,

Fig. 5

1 shows a perspective view of a base body half with an inserted swivel head,

Fig. 6

a perspective view of a swivel head,

Fig. 7

a first vertical section through the components of the stand element and the rotating and pivoting device,

Fig. 8

a second vertical section through the components of the stand element and the rotating and swiveling device in the basic position of the swiveling head,

Fig. 9

the vertical section Fig. 8 in a swivel position of the swivel head.

All of the figures show the invention not to scale, but only schematically and only with its essential components. The same reference numerals correspond to elements of the same or comparable function.

A chair 1 with an upholstered seat 2 and an upholstered backrest 3 is in Fig. 1 shown. Seat 2 and backrest 3 are firmly connected to one another and form the seat element as a movement unit. This seating element is carried by a chair column 4 serving as a supporting element. The chair column 4 is rotatably and pivotally connected to the seat 2. In the present case, the chair column 4, seat 2 and backrest 3 thus form a rigid assembly 5. This assembly 5 can be rotated and pivoted as a whole. For this purpose, a combined rotating and swiveling device 6 is used, which is arranged away from the seat 2, namely near a standing surface 7 of the chair 1. More precisely, the rotating and swiveling device 6 is attached to the lower end 8 of the chair column 4 and is connected to the chair column 4 so as to be non-rotatable and pivotable. At the same time, the rotating and swiveling device 6 is connected to a stand 9 which can be set up on the floor 20 and serves as a stand element, which is designed here as a plate, the underside of the stand 9 serving as a stand surface 7 of the chair 1. The turning and Swivel device 6 is rotatably mounted in the base 9. An axial bearing 11, which is described in more detail below, is used for this purpose and can be designed as a plain bearing or roller bearing.

Instead of the chair column 4, a differently shaped support element can also be used, for example a V-shaped or U-shaped support element, as in FIG Fig. 2 outlined. Likewise, instead of a plate, as in Fig. 1 , a three- or multi-legged stand 9 can also be used, see Fig. 2 , or the stand element is designed as a flat base plate 9 resting on the floor 20, see 3 to 9 , Common to all support elements is a lower end point 8 for connection to the rotating and swiveling device 6.

The bottom plate 9 has, as in Fig. 7 depicted in more detail, a central bearing receptacle 12 for the rotating and pivoting device 6. The circular bearing receptacle 12 is essentially formed by an outer bearing ring 13 fastened to the base plate 9. The base ring 19 of the bearing ring 13 rests on the base plate 19. An axial bearing 11 for the rotating and pivoting device 6 is formed on the inside of the bearing ring 13. In Fig. 7 a roller bearing is shown symbolically.

The rotating and swiveling device 6 comprises a base body 14 and a swivel head 15 arranged at the lower end 8 of the chair column 4, see 4 to 9 , The cup-shaped base body 14 is rotatably mounted on the base plate 9 and thus on the bearing ring 13 about an axis of rotation 16, see Fig. 7 , wherein the rotational movement is indicated by arrows 17. The axis of rotation 16 extends in the longitudinal direction 10 of the chair column 4 and enables the assembly 5 to be rotated in a predetermined range of rotation angles, preferably a 360 ° rotation. For this purpose, the Base body 14 with its bearing rollers 18 on the base 19 of the bearing ring 13 of the base plate 9. If, in a modified embodiment of the invention, no base plate 9 but a different base is used, the bearing ring 13 is fastened in a suitable manner to the other base.

For its part, the base body 14 has a swivel mount 21 in the middle for receiving the swivel head 15. The swivel head 15 is either connected in one piece to the chair column 4 (not shown) or, as in the case outlined, the swivel head 15 has a corresponding cone mount 27 for the Chair column 4 on.

Like from the 4 and 5 can be seen, the base body 14 is constructed symmetrically such that it can be assembled from two half-shell-shaped identical parts, into which the swivel head 15 can be inserted. Such a structure is advantageous in production, storage and assembly.

The swivel head 15 is connected to the base body 14 and can be pivoted relative to the base body 14 on an arcuate swivel path 28. The swivel path 28 lies completely within the base body 14. The swiveling of the swivel head 15 also takes place completely within the base body 14, more precisely within the swivel receptacle 21 of the base body 14. The swivel head 15 is swiveled according to the swivel path 28 by one below the standing surface 7 and thus arranged in the floor 20, virtual pivot axis 22, see 7 to 9 , The pivot axis 22 is horizontal, ie parallel to the floor 20 or to the base 7 of the base 9. At the same time, the pivot axis 22 is perpendicular to the axis of rotation 16. Both axes 16, 22 intersect below the base 7.

The base body 14 has two opposing, closed path guides 29, which determine the swivel path of the swivel head 15, in the form of flat circular arc sections. The movement characteristic of the seat device 1 can be changed as desired by the choice of the path curve.

The swivel head 15 has a number of rolling elements 30, 31 with which it lies in these web guides 29 and forms a number of pairs of guide elements. The web guides 29 thus serve as runways, along which or within which the rolling elements 30, 31 move. Instead of the rolling elements 30, 31, sliding elements can also be used. The track guides 29 then serve as slideways.

Depending on the design, the rolling elements 30, 31 can be rigid or, as in the present case, rotatable about axes of rotation 32, 33 lying transversely to the longitudinal direction 24 of the chair.

In the sense of a kinematic reversal, it is also conceivable that the base body 14 has fixed sliding or rolling elements and the swivel head 15 has corresponding sliding or rolling tracks which can be moved along with the swiveling head 15 and which cooperate with the sliding or rolling elements (not shown).

A particularly safe movement of the swivel head 15 relative to the base body 14 is achieved by providing at least two pairs of guide elements spaced apart in the swivel direction 23, namely at least one pair of front guide elements as seen in the swivel direction 23, by means of which the front region of the swivel head 15 is connected to the base body 14 is, and a pair of rear guide elements seen in the pivoting direction 23, through which the rear region of the Swivel head 15 is connected to the base body 14. Nevertheless, the web guides 29 in the front and rear areas are preferably of identical design. A pair of guide elements is understood to mean the respectively interacting pairing of sliding element and sliding track or rolling element 30, 31 and rolling track 29.

In a simple and therefore particularly robust and less susceptible embodiment of the invention, the web guides 29 are formed by guide slots contained in the base body 14. The guide slots have opposite rolling surfaces 34, 35 in such a way that the rolling elements, when executing a relative movement of the swivel head 15 and base support 14, are simultaneously guided in the slot against two contact surfaces.

The rolling elements 30, 31 are arranged in pairs so that the swivel head 15 has a number of pairs of rolling elements, each such rolling element pair lying in a track guide 29 such that the first rolling element 30 of the rolling element pair exclusively has a first guide surface 34 of the web guide 29 contacted, while the second rolling element 31 of the pair of rolling elements only contacts a different from the first guide surface 34 second guide surface 35 of the web guide 29. The first guide surface 34 is the lower contact surface of the web guide 29 and the second guide surface 35 is the upper boundary surface of the web guide 29. Such separate bearing points or guide surfaces can be realized and / or by means of rolling elements 30, 31 of different sizes a design of the web guides 29 with several different guide heights, in particular different distances between the upper and lower Guide surfaces 34, 35. In the present case, the outer rolling elements 31 have a smaller diameter than the inner rolling elements 30. At the same time, the first and second guide surfaces 34, 35 are offset from one another. As a result, the inner, larger roller 30 runs on the lower web surface 34, while the outer, smaller roller 31 runs on the upper web surface 35 which is offset from the lower web surface 34.

A paired arrangement and use of the rolling elements 30, 31 prevents a single rolling element from contacting the web guide 29 simultaneously with the lower contact surface 34 and the upper boundary surface 35 of the web guide 29, that is to say with two opposite points, which could result in the unwinding process being blocked , The only remedy would be a larger distance between the upper and lower guide surfaces 34, 35, in other words a larger guide height. However, this would be associated with an undesirable play of the rolling elements lying in the web guide 29. By using the rolling elements 30, 31 in pairs, an essentially play-free interaction of the rolling elements 30, 31 and the web guide 29 is possible without a proper unwind being impeded.

Since the swivel head 15 is guided in the base body 14, it is guaranteed that the base body 14 and the swivel head 15 always rotate together and together.

The swivel head 15 can be in the swivel mount 21 of the base body 14 from a non-swiveled basic position, as in Fig. 7 and 8th shown in a most pivoted pivot position, as in Fig. 9 shown.

The swivel head 15 can be swiveled about the virtual swivel axis 22 in a single defined swivel direction 23 relative to the non-swivelable base body 14. The swivel direction 23 of the swivel head 15 and thus the swivel direction 23 of the entire assembly 5 thus always relate to the base body 14. The swivel movement always takes place in a single defined direction 23, radially with respect to the chair column 4, relative to the seat 2 Pivoting movement is therefore always carried out in the desired direction 23, preferably to the rear, regardless of the current angle of rotation, ie. H. in the direction of the backrest 3. A lateral tilting of the chair 1 is thus avoided despite its rotatability.

The mechanics shown allow pivoting of the swivel head 15 and thus the assembly 5 both forward and backward due to the symmetrical design of the web guide. If this is not desired, the swiveling movement can be limited by a suitable design of the swiveling head 15 and / or of the base body 14, for example a movement forwards can be prevented, for. B. by the appropriate placement of stops on the swivel head 15 and / or base body 14. "Front" and "rear" refers to the longitudinal direction 24 defined by the position of the seat 2, is therefore independent of a certain rotational position.

The rotating and pivoting device 6 comprises, as in the Fig. 6 . 8 and 9 illustrates a spring element arrangement for influencing the pivoting resistance of the rotatable and pivotable assembly 5. This spring element arrangement comprises two pressure springs 26, which act on both sides of the pivoting head 15 and have the same effect, the parallel, symmetrical arrangement of which ensures the uniform loading of the pivoting head 15.

The two spring elements 26 cooperate with the swivel head 15 in such a way that on the swivel head 15 swiveled from the non-swiveled state into a swiveled state, a restoring force caused by the spring elements 26 acts to return the swivel head 15 to the non-swiveled state. Since the identical spring elements 26 are acted upon both when swiveling forwards and also when swiveling backwards and are used for returning to the non-swiveled state, the number of spring elements required remains small.

Each spring element 26 has two spring ends 36, 37 which, in the non-pivoted state, act on spaced-apart drivers 38, 39 of the swivel head 15. The drivers are the axle ends of the axles 32, 33 which lie transversely to the swivel direction 23 in the front and rear region of the swivel head 15 in the swivel head 15 and which carry the rolling elements 30, 31 lying in the web guides 29. The swivel head 15 engages the spring elements 26 at one spring end 36 each time it is swiveled with two drivers 38, namely the two axis ends of the respective driving axis 32, 33, and takes these spring ends in the swivel direction 23.

The base body 14 has two fixed stops 41, 42 which are spaced apart from one another, namely symmetrically to the center of the web guide 29 or equidistant from the center of the web guide 29. When the swivel head 15 is swiveled, the other spring ends 37 of the spring elements 26, which are not carried along, are pressed against one of these stops 42 of the base body 14, as a result of which the spring elements 26 are compressed and a restoring force acting on the swivel head 15 for returning the swivel head 15 into the non-swiveled one Condition is caused. In this case, the other drivers 39 not engaging the one spring end 37 move away from the stop 42, moving on the swivel path 28 of the swivel head 15.

In other words, in the non-pivoted state, the spring elements 26 are each mounted between the two axle ends 38, 39 of the axles 32, 33 that support the rolling elements 30, 31 and are arranged on the same side of the swivel head 15 and by means of fixed stops 41 formed by the base body 14 , 42, which only act on the spring ends 36, 37, in particular on the correspondingly designed spring plates 40, compression of the spring elements 16 is made possible in spite of the pivoting of the axle ends 38, 39.

In Fig. 8 the initial situation is shown in which the swivel head 15 is not swiveled. One spring element 26 is held between the axle ends serving as drivers 38, 39. At the same time, the spring plates 40 provided on both spring ends 36, 37 already strike the stops 41, 42 of the base body 14. Each pivoting of the swivel head 14, for example as in Fig. 9 shown, then leads to the fact that one spring end 36 of the spring element 26 is carried by the driver 38 in the pivoting direction 23, while the other spring end 37 of this spring element 26 is supported with the spring plate 40 on the stop 42. The driver 39 originally assigned to this other spring end 37 can, together with the other driver 38, which is likewise fixedly attached to the swivel head 15, move freely in the swivel direction 23 away from the spring end 37 or the spring plate 40 provided there.

Alternatively, this functionality can also be described in such a way that two spring elements 26 are provided, each two Have spring ends 36, 37 and, in the non-pivoted state, bear against or are held against two fixed stops 41, 42 of the base body 14 spaced apart from one another, the pivot head 15, when leaving the non-pivoted state, with a driver 38 interacting with the web guide 29, 39 depending on the swivel direction 23, that is, forwards or backwards, optionally engages one of the two spring ends 36, 37 and takes it along in the swivel direction 23, the spring element 26 cooperating with the swivel head 15 in such a way that one spring end 36 of the spring element 26 of the a driver 38 of the swivel head 15 can be taken in the swivel direction 23 and be moved away from the first stop 41 towards the second stop 42 when the swivel head 15 swings from the non-swiveled state into a swiveled state, thereby causing the other spring ends 37 of the spring elements 26 against the second stop 42 of the base body 14 be moved, whereby the spring elements 26 are acted upon and a restoring force acting on the swivel head 15 is brought about for returning the swivel head 15 into the non-swiveled state.

However, the stops 41, 42 do not necessarily have to be positioned such that the spring ends 36, 37 or spring plates 40 already strike them in the non-pivoted position. A different positioning of the stops 41, 42 is also possible, for example in such a way that first a free, stop-free movement of the spring elements 26 with the swivel head 15 is possible before the spring elements 26 strike a stop at their spring ends 36, 37. At the same time, as already described further above, by arranging the stops 41, 42, the pivoting path or pivoting angle 25, as in FIG Fig. 9 drawn in, can also be defined differently at the front and back if desired.

"Front" or "front" means that a component is arranged in the longitudinal direction 24 of the chair or refers to a component that extends in the direction of the front seat edge of the seat 2 or points in this direction, while "rear" or "rear "means that a component is arranged in the longitudinal direction 24 of the chair or refers to a component extending in the direction of the backrest 3 or the backrest support or the rear seat edge or pointing in this direction. The information “above” or “below” relates to the intended use of the chair 1.

All features shown in the description, the following claims and the drawing can be both individually. as well as essential to the invention in any combination with one another.

LIST OF REFERENCE NUMBERS

1

chair

2

Seat

3

backrest

4

chair column

5

module

6

Rotating and swiveling device

7

footprint

8th

lower end, lower end point

9

stand

10

Longitudinal direction of the chair column

11

thrust

12

bearing seat

13

bearing ring

14

body

15

swivel head

16

axis of rotation

17

direction of rotation

18

bearing roller

19

Floor space

20

ground

21

swivel mount

22

virtual swivel axis

23

pan direction

24

Chair longitudinally

25

swivel angle

26

spring element

27

cone holder

28

pivot path

29

web guide

30

inner rolling element

31

outer rolling element

32

front axis of rotation

33

rear axis of rotation

34

Roll area, first guide area

35

Roll surface, second guide surface

36

first spring end

37

second spring end

38

Axle end, first driver

39

Axle end, second driver

40

spring plate

41

first stop

42

second stop

Claims (10)

1. Seat device (1),
   with a combined rotational and pivoting device (6) for rotating and pivoting an assembly (5) of the seat device (1), which assembly (5) comprises a seat element (2, 3), wherein the rotational and pivoting device (6) is arranged away from the seat element (2, 3) of the seat device (1), in the vicinity of a standing surface (7) of the seat device (1),
   with a standing element (9) which can be erected on the standing surface (7),
   with a supporting element (4) which is connected to the standing element (9),
   and with a seat element (2, 3) which is supported by the supporting element (4),
   wherein the rotational and pivoting device (6) connects the standing element (9) to the supporting element (4), and the supporting element (4) and the seat element (2, 3) are parts of the rotatable and pivotable assembly (5),
   wherein the rotational and pivoting device (6) has a basic body (14) and a pivoting head (15) which is connected to the supporting element (4),
   wherein the basic body (14) is mounted on the standing element (9) so as to be rotatable about an axis of rotation (16), and
   wherein the pivoting head (15) is connected to the basic body (14) and is pivotable relative to the basic body (14) on a pivoting path (28) about a virtual pivot axis (22) arranged below the standing surface (7).
2. Seat device (1) according to Claim 1, wherein the basic body (14) has at least one path guide (29) determining the pivoting path (28) of the pivoting head (15), and wherein the pivoting head (15) has a number of sliding or rolling elements (30, 31) with which the pivoting head lies in the at least one path guide (29).
3. Seat device (1) according to Claim 2, wherein the sliding or rolling elements (30, 31) are arranged in pairs, and therefore the pivoting head (15) has a number of pairs of sliding or rolling elements, wherein in each case one such pair of sliding or rolling elements lies in the at least one path guide (29) in such a manner that the first sliding or rolling element (30) of the pair of sliding or rolling elements exclusively makes contact with a first guide surface (34) of the path guide (29) while the second sliding or rolling element (31) of the pair of sliding or rolling elements exclusively makes contact with a second guide surface (35) of the path guide (29), which differs from the first guide surface (34).
4. Seat device (1) according to one of Claims 1 to 3, wherein the axis of rotation (16) runs in the longitudinal direction (10) of the supporting element (4) .
5. Seat device (1) according to one of Claims 1 to 4, wherein, in each pivoting state of the rotatable and pivotable assembly (5), the virtual pivot axis (22) runs perpendicularly to the axis of rotation (16).
6. Seat device (1) according to one of Claims 1 to 5, wherein the virtual pivot axis (22) is arranged with respect to the axis of rotation (16) in such a manner that the two axes (22, 16) intersect.
7. Seat device (1) according to one of Claims 1 to 6, wherein the rotational and pivoting device (6) has at least one spring element (26) for influencing the pivoting resistance of the rotatable and pivotable assembly (5), which at least one spring element (26) interacts with the pivoting head (15) in such a manner that the pivoting head (15) which is pivoted from the non-pivoted state into a pivoted state is acted upon by a resetting force, which is brought about by the at least one spring element (26), in order to return the pivoting head (15) into the non-pivoted state.
8. Seat device (1) according to Claim 7, wherein the at least one spring element (26) has two spring ends (36, 37) which, in the non-pivoted state, act on spaced-apart drivers (38, 39) of the pivoting head (15), wherein the drivers are preferably the sliding or rolling elements (30, 31) lying in the at least one path guide (29) or construction elements connected to said sliding or rolling elements, in particular axles (32, 33) supporting the sliding or rolling elements (30, 31), and wherein each time the pivoting head (15) is pivoted, it carries along the spring element (26) with at least one of the drivers (38, 39).
9. Seat device (1) according to Claim 8, wherein the basic body (14) has two spaced-apart stops (41, 42), wherein, during pivoting of the pivoting head (15), the spring end (36, 37) of the spring element (26) that is not carried along by the driver (38, 39) is pressed against one of the stops (41, 42) of the basic body (14), as a result of which the spring element (26) is compressed and a resetting force acting on the pivoting head (15) for returning the pivoting head (15) into the non-pivoting state is brought about.
10. Seat device (1) according to one of Claims 1 to 9, wherein the supporting element (4) is a supporting pillar and/or wherein the standing element (9) is a standing foot or a baseplate.

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