EP3248508B1 - Seating device - Google Patents

Description

FIELD OF THE INVENTION

The present invention relates to a seat device, in particular a chair or a stool.

TECHNICAL BACKGROUND

In the German patent application DE 10 2014 212 558 A1 is a seat for a chair, in particular an office chair, described, which comprises a molding. The shaped body has a total of a saddle shape and is integrally formed as a hollow packing of a flexible, in particular elastic material. Such saddle chairs are currently still a shadowy existence, because they initially look a bit strange and usually allow only a single comfortable seating position. Furthermore, from the US 2007/102968 A1 a chair with a backrest and armrests known, which has a seat with two side by side arranged levers, which are each pivotable up and down.

From the US 2011/012397 A1 is an ergonomic chair with a saddle seat known. In the FR 2 871 348 A1 Furthermore, a seat with a central seat base and laterally by means of a respective hinge pivotally mounted side panels described. Next is from the WO 02/07567 A1 a chair, in particular an office chair, known with a saddle-shaped seat. The seat is made of a flexible material, whereby the curvature of the seat can be varied.

SUMMARY OF THE INVENTION

Against this background, the invention is based on the object of providing an improved seat device of the type mentioned in the introduction.

According to the invention, this object is achieved by a seat device having the features of patent claim 1.

The seat device has the advantage that it can be used on the one hand as a conventional seat and, if necessary, as a saddle seat. The saddle sitting, which is provided by the saddle seat, has the advantage that it prevents a venous jam.

The idea underlying the present invention is to provide a seat device that allows both conventional sitting and saddle seating without requiring a user to change the seat apparatus. The seat device is designed such that the seat device can be easily changed between a normal seat and a saddle seat without laborious retooling. By dividing a conventional seat into a seat and separately up and down pivotally mounted or hinged seat elements, the seat device can be very easily and conveniently set as a normal seat and converted if necessary to a saddle seat.

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 one embodiment of the invention, the seat elements form a common seat surface in a pivoted-up position with the seat, so that the seat device can be used as a conventional seat.

According to the invention, the seat has a triangular section, the tip of the triangular section facing the front of the seat device to form a saddle shape. On the two opposite sides of the triangular section, the seat elements are pivotally connected to the seat so that, if required, a saddle seat can be provided by pivoting down the seat elements relative to the seat. The seating elements form a comfortable lateral support for the legs of the seated.

According to one embodiment of the invention, at least one seat element is attached to the seat by means of at least one hinge up and down swinging. A hinge is a particularly simple and inexpensive pivotable connection of the seat member to the seat. In addition or as an alternative to at least one hinge, at least one spring plate may also be provided for the pivotable connection of the seat member to the seat.

According to the invention, the seat device has a pivoting device which is connected to the seat elements for pivoting the seat elements up and down relative to the seat. The pivoting device can be designed as a mechanical, electromechanical, pneumatic and / or hydraulic pivoting device. For example, the pivoting device may have a telescopic connection, a retractable and extendable pneumatically, electronically and / or hydraulically actuated piston, etc.

According to the invention, the pivot means comprises a disc which is rotatably mounted on the seat device below the seat. The pivoting device or its disc has, for example, the same distance from the two seat elements or is arranged between the two seat elements in the middle below the seat on the seat device.

According to the invention, the pivoting device for each seat member each having a rod member which is rotatably connected to a first end with the disc and with a second end rotatably connected to the seat member. Such a rod element is particularly easy to manufacture and easy to assemble.

In one embodiment of the invention, the two first ends of the two rod elements and the center of the disc lie on a common horizontal axis. Such a symmetrical structure is easy to assemble.

According to one embodiment of the invention, the second end of the respective rod member is rotatably received on a carrier and the carrier attached to the underside of the associated seat member. Thereby, the rod element may have a particularly simple construction, for example an eyelet as a second end, through which a shaft, e.g. a bolt or bolt, can be passed for rotating the rod member.

In one embodiment of the invention, the carrier is for example U-shaped and has two legs, between which the second end of the rod member is arranged and by, for example, a bolt with a shaft portion is rotatably mounted on the two legs. Such a carrier is on the one hand inexpensive and on the other hand allows a stable and space-saving rotatable attachment of the rod member to the seat element.
In a further embodiment of the invention, at least one of the rod elements is formed in one piece or at least in two parts. A one-piece or one-piece rod element is inexpensive to manufacture and easy to assemble.
In another embodiment of the invention, the two-part rod element has a first and a second rod element part. The first rod member part has the first end of the rod member and the second rod member part has the second end of the rod member. Both rod element parts can, for example, be screwed into one another or screwed onto one another so as to be screwed onto one another. The screw connection of the two rod element parts has the advantage that the length of the rod element can be adjusted or varied if necessary.
According to one embodiment of the invention, the seat device has a locking device. The locking device is designed to lock the seat elements in a maximum pivoted position, a maximum downwardly pivoted position and / or at least one intermediate position. As a result, a user can, for example, adjust and lock the inclination of the swung down seat elements in the case of the saddle seat adjustment at will.

In one embodiment of the invention, locking device is, for example, a rotary knob. Such a knob is inexpensive to manufacture, easy to assemble and easy to use later by a user.

In a further embodiment of the invention, the seat device has a seat height adjustment device, for example a gas spring, for adjusting the height of the seat and the seat elements connected to it. In this way, the user can easily change and adjust the height of the seat or chair in the normal or conventional sitting position as well as in the saddle seat position.

In another embodiment of the invention, the seat device on a backrest and optionally in addition armrests. The backrest may be fixed or adjustable in height and / or inclination. A backrest height adjustment device and / or a backrest tilt adjustment device additionally increases the comfort of the seat device according to the invention.

According to one embodiment of the invention, the seat and the seating elements connected to it are adjustable in inclination by means of a seat reclining device and / or the seat has an all-round swinging mounting. As a result, the comfort of the seat device during normal sitting as well as saddle sitting can also be increased.

In one embodiment of the invention, the seat and the seating elements connected to it are rotatable about a common axis. By the rotatable forming of the seat device in the circumferential direction of the comfort can also be further increased.

For example, according to one embodiment of the invention, the seating device is a chair, e.g. an office chair, or stool. Furthermore, the seat device can be additionally designed to be rollable as a chair or stool.

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 Perspektivansicht einer erfindungsgemäßen Sitzvorrichtung in einer hochgeschenkten Position oder Ausgangsposition;

Fig. 2

eine Seitenansicht der Sitzvorrichtung gemäß Fig. 1;

Fig. 3

eine Draufsicht der Sitzvorrichtung gemäß Fig. 1, wobei die Rückenlehne weggelassen ist;

Fig. 4

eine Seitenansicht der Sitzvorrichtung gemäß Fig. 3;

Fig. 5

eine Perspektivansicht der Sitzvorrichtung gemäß Fig. 4 von unten aus gesehen;

Fig. 6

eine Vorderansicht der Sitzvorrichtung gemäß Fig. 4,

Fig. 7

eine Rückansicht der Sitzvorrichtung gemäß Fig. 4;

Fig. 8

eine Perspektivansicht der erfindungsgemäßen Sitzvorrichtung gemäß Fig. 1 in einer heruntergeschenkten Position oder Endposition;

Fig. 9

eine Seitenansicht der Sitzvorrichtung gemäß Fig. 8;

Fig. 10

eine Draufsicht der Sitzvorrichtung gemäß Fig. 8, wobei die Rückenlehne weggelassen ist;

Fig. 11

eine Seitenansicht der Sitzvorrichtung gemäß Fig. 8;

Fig. 12

eine Perspektivansicht der Sitzvorrichtung gemäß Fig. 8 von unten aus gesehen;

Fig. 13

eine Vorderansicht der Sitzvorrichtung gemäß Fig. 8,

Fig. 14

eine Rückansicht der Sitzvorrichtung gemäß Fig. 8;

Fig. 15

eine weitere Rückansicht der zuvor in den Fig. 1-14 gezeigten Sitzvorrichtung, wobei die Rückenlehne vorhanden ist;

Fig. 16

eine andere Rückansicht der Sitzvorrichtung gemäß Fig. 15;

Fig. 17

eine rechte Seitenansicht der Sitzvorrichtung gemäß der Fig. 15 und 16; und

Fig. 18

eine linke Seitenansicht der Sitzvorrichtung gemäß der Fig. 15 und 16.

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

Fig. 1

a perspective view of a seat device according to the invention in a highly gifted position or starting position;

Fig. 2

a side view of the seat device according to Fig. 1 ;

Fig. 3

a plan view of the seat device according to Fig. 1 with the backrest omitted;

Fig. 4

a side view of the seat device according to Fig. 3 ;

Fig. 5

a perspective view of the seat device according to Fig. 4 seen from below;

Fig. 6

a front view of the seat device according to Fig. 4 .

Fig. 7

a rear view of the seat device according to Fig. 4 ;

Fig. 8

a perspective view of the seat device according to the invention according to Fig. 1 in a gifted position or end position;

Fig. 9

a side view of the seat device according to Fig. 8 ;

Fig. 10

a plan view of the seat device according to Fig. 8 with the backrest omitted;

Fig. 11

a side view of the seat device according to Fig. 8 ;

Fig. 12

a perspective view of the seat device according to Fig. 8 seen from below;

Fig. 13

a front view of the seat device according to Fig. 8 .

Fig. 14

a rear view of the seat device according to Fig. 8 ;

Fig. 15

another rear view of the previously in the Fig. 1-14 shown seat device, wherein the backrest is present;

Fig. 16

another rear view of the seat device according to Fig. 15 ;

Fig. 17

a right side view of the seat device according to the FIGS. 15 and 16 ; and

Fig. 18

a left side view of the seat device according to the FIGS. 15 and 16 ,

The accompanying drawings are intended to provide 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

In the Fig. 1 to 7 a seat device 1 according to the invention is shown, wherein the seat device 1 is shown in a folded-up position or starting position. The Fig. 1 and 2 show the seat device 1 with an additional Backrest 2 in a perspective view and a side view. In the Fig. 3 to 7 the backrest is left out. Fig. 3 shows the seat device 1 in a plan view, Fig. 4 the seat device 1 in a side view and Fig. 5 the seat device 1 in a perspective view from below. Fig. 6 shows the seat device 1 again in a front view and Fig. 7 the seat device 1 in a rear view.

The seat device 1 according to the invention has a seat 3, on both sides of each of which an additional pivotable seat element 4 is provided.

The in the Fig. 1 to 7 and subsequent ones 8 to 18 Seating device 1 shown is formed, for example, as an office chair 5, which on chair rollers 8, as in the following Fig. 15 is indicated, is mounted rollable and is optionally rotatable about its axis. The office chair 5 has the backrest 2 and optional additional armrests. In this case, the seat device 1 according to the invention may optionally be formed with a backrest height adjustment device and / or a backrest tilt adjustment device 26 for changing the height and inclination of the backrest 2, if such a backrest 2 is provided. In eg the following Fig. 15, 16 and 18 By adjusting the backrest height adjustment device 24 and an associated backrest height adjustment lever 25 for the backrest 2, as in following Fig. 15, 16 and 17 and the recliner reclining lever 27 of the reclining recliner 26, the height and inclination of the backrest 2 can be adjusted as needed.

The same applies to a seat tilt adjustment or a seat ball-like, i. horizontally rocking and / or swinging around the seat, the seat of the seat 3 and the associated seat elements 4. Such a tilt adjustment of the seat 3 is made e.g. by a corresponding seat tilt adjustment device 30 with an associated seat tilt adjustment lever 31 which actuates a seat tilt mechanism of the seat tilt adjustment device 30.

The in the Fig. 1-14 shown seat device 1, for example, an additional seat height adjustment device 28, for example, a gas spring, etc., with the addition of the seat height of the seat device 1 can be adjusted. The adjustment of the height of the chair or seat 3 by the seat height adjustment 28 takes place by pressing the example in the following Fig. 15-18 shown seat height adjustment lever 29 of the seat height adjustment 28th

In this case, the chair mechanism with the seat 3 and its seat elements 4 and, if present, the backrest 2 and possibly additional armrests, not shown, supports on the upper end of the seat height adjustment device 28.

The seat device according to the invention can be designed with a backrest and optionally additional armrests, for example as an office chair, etc., or without a backrest and armrests as a stool. The stool can also be designed to be rollable.

The respective seat element 4 is articulated, for example, to the seat element 3 in such a way that it can pivot between a raised position or starting position and a lowered position or end position, in which the seat device 1 provides a type of saddle or saddle seat. In the starting position, the seat 3 with the two seat elements 4 forms a common continuous or substantially continuous seat surface. The plane formed by the seat 3 and the plane formed by the seat elements 4 lie, for example, at the same or substantially the same height as, for example, in the front and rear view of the seat device 1 in FIGS Fig. 6 and 7 is shown and in Fig. 6 is indicated by a dashed line. It is also conceivable that the seat elements 4, for example, are slightly swung over the seat 4 and its seat and form a kind of U-shape or arch with the seat 3.

In the lowered position or end position, the two seat elements 4 are pivoted or folded downwards relative to the seat 3 and form with this a saddle seat or saddle shape. The plane formed by the seat elements 4 extends at an angle or obliquely to the plane of the seat 3 such as in the following FIGS. 13 and 14 is indicated by a dashed line.

So far, saddle chairs are still a shadowy existence, because they look a bit strange at first and because some users may not want to sit on such a saddle chair all the time.

The "saddle sitting", which is provided by such a saddle chair, has the advantage over normal chairs, that it prevents a jam on prolonged sitting.

Due to the seat device 1 according to the invention, a saddle sitting as well as a normal sitting can now be made possible both when needed. In this way, a user can thus enjoy temporarily or at will the merits of a saddle chair, without having to do without a normal seat completely.

In this case, the respective seat element 4 of the seat device 1 according to the invention can be locked at least in the pivoted-up starting position as well as in the downwardly pivoted end position. In a further embodiment of the seat device 1 according to the invention, at least one of the seat elements 4 can additionally be provided lockable in different intermediate positions between the starting and the end positions. As described above, the Fig. 1 to 7 and the following ones Fig. 15-18 , the raised position or starting position of the seat device according to the invention 1. The following 8 to 14 again show an example of the lowered position or end position of the seat device according to the invention. The invention is based on the degree of heruntergeschtten or folded down seat elements 4, as in the 8 to 14 shown, not limited. The illustration is only an example. It is also conceivable that the seat elements 4 can be swung down by up to 90 ° relative to the seat 3 and its plane, depending on the function and purpose.

The respective seat element 4 is connected to the seat 3, for example by means of at least one hinge 9, or at least two Hinges 9 as in Fig. 5 is shown as an example, pivotally or hingedly connected.

Furthermore, the seat device 1 has a pivoting device 10 for pivoting the seat element 4 relative to the seat 3 between the pivoted-up starting position and the lowered end position.

That in the Fig. 1 to 7 and subsequent ones 8 to 18 shown embodiment of the pivoting device 10 has, for example, a rotatable disc 11, which is arranged below the seat 3, for example on a connecting element 12, which connects the seat height adjustment device 28 and the seat 3. The disk 11 is arranged, for example, in alignment with the seat height adjustment device 28.

A first end 13 of a rod member 14 is rotatably mounted on the rotatably mounted disc 11, for example on the end face of the rotatably mounted disc 11. The other second end 15 of the rod member 14 is in turn rotatably mounted on the underside of the seat member 4. For this purpose, the second end 15 of the rod member 14 is rotatably mounted by means of a holder on the underside of the seat member 4. The second end 15 is formed for example as an eyelet, through which a shaft or a shaft portion of a screw element can be passed.

The attached to the disc 11 first ends 13 of the two rod members 14 are, for example, rotatably mounted on the end face of the disc 11 such that the two first ends 13 and the center 16 of the disc 11 lie on a common horizontal or horizontal axis, as in Fig. 5 is indicated with a dotted line when the seat elements are pivoted to the raised position or home position.

The first ends 13 of the two rod elements 14 are attached to the disc 11, e.g. screwed by a suitable screw member 16 each and rotatable about the longitudinal axis of the associated screw member 16. Such a rotatable attachment is particularly easy and inexpensive to implement. However, the invention is not limited to this attachment nor to the attachment to the end face of the disc 11. In principle, for example, an attachment to the circumference of the disc 11, etc. possible.

For pivoting the seat elements 4 relative to the seat 3 in the end position, as in the following 8 to 14 is shown, for example, a seat member actuator 7 is provided with a knob 18 by means of the disc 11 is rotated and thereby adjusted via the rod members 14 connected to the disc 11 seat elements 4 and then locked in the set position.

The knob 18 is coupled to the disc 11 so that the knob 18 in a locked position, the disc 11 is locked so that rotation or further rotation of the disc 11 is prevented. In one embodiment, as in the Fig. 2 . 17 and 18 is shown, the knob 18 can be held or positioned by means of a spring element 6 in the locking position as a starting position.

If the knob 18 is actuated, for example, pulled forward as in Fig. 4 is indicated with an arrow, the knob 18 is moved from its locking position to an actuating position in which by means of additional rotation of the knob 18, the disc 11 can be operated or rotated to the connected via the rod members 14 with the disc 11 seat elements to adjust. As soon as the disk 11 has been rotated sufficiently clockwise or counterclockwise by means of the operated, ie pulled forward, rotary knob 18 and the seat elements 4 have been pivoted into a desired position, the rotary knob 18 can be released and is moved back into its locking position by the spring element 6 or withdrawn, in which the disc 11 is locked by the knob 18 and can not be further rotated.

In this way, the seat member actuator 7 pivot by its knob 18, the seat elements 4 by turning the disc 11 by means of the knob 18 not only between the pivoted up position and the swung-down end position, but also lock in the respective pivoted position. In one embodiment of the seat device 1 according to the invention, at least one of the seat elements 4 can additionally be locked in different intermediate positions between the initial and the end position by the seat element actuating device 7 and its rotary knob 18. As described above, the knob 18 for locking the seat elements 4 in the desired position by the spring element 6 simply moved back to its locking position, for example, be withdrawn. To release the locking and pivoting of the seat elements 4, the knob 18 is simply pulled back against the force of the spring element 6 and in addition rotated in or counterclockwise until the desired position of the seat elements 4 is reached, such as in the Fig. 4 . 6 . 8th and 13 indicated by a double arrow. This has the advantage that the rotary knob 18 can be used both for actuating the disc 11 and thus pivoting the seat elements 4 as well as for locking the seat elements 4 in the desired position. As a result, a particularly simple and cost-effective actuating device can be provided and an additional separate locking device can be dispensed with. However, the invention is not limited to this embodiment of an actuator with a knob. Any form of actuating device can be provided which is suitable at least for rotating the disk 11 and thus pivoting the seat elements 4 connected to the disk 11. Preferably, the actuator may additionally be designed as a locking device and lock the disc 11 in a rotated position and thus the seat elements 4 in a pivoted position, so that they can not move accidentally. Likewise, a separate locking device can be provided which can lock the seat elements 4 in a pivoted position.

In Fig. 4 is the movement of the turret forward for releasing the locking of the disc 11 indicated by an arrow. The rotation of the disc 11 by turning the knob 18 is in Fig. 4 . 6 and 8th again indicated by a double arrow. The pivoting of the seat elements 4 is in Fig. 6 and 8th indicated by arrows accordingly. Will, as in Fig. 6 is indicated, the disc 11 is released or released by the knob 18 to rotate, so the disc 11 can be rotated, for example, by the knob 18 counterclockwise and thereby_ the respective seat member 4, which is connected via the respective rod member 14 with the write 11, as with an arrow in Fig. 6 is hinted to be swung down. The seat member 4 pivots down to the desired intermediate position or end position, as in the following 8 to 14 is shown. At the same time the other seat member 4, which is also rotatably connected via its rod member 14 with the disc 11, thereby pivoted down into the desired intermediate position or end position by rotating the disc 11, as in the following Fig. 12 . 13 and 14 is shown.

For locking the seat elements 4 in a respective desired position, including the starting, the end or an intermediate position, the knob 18 is simply released and moved back or retracted by means of the spring element 6 in the starting or locking position.

As in the embodiment in the Fig. 1-14 is shown, the respective rod member 14 is for example made in two parts and has a first and second rod member part 19, 20. The first rod member part 19 has the first end 13 of the rod member 14 and is rotatably screwed, for example, with the first end 13 on the end face of the disc 11, as described above. The second rod member part 20 in turn has the second end 15 of the rod member 14 which is rotatably attached to the underside of the seat member 4. For this purpose, the second rod element part 20 has a through hole, for example a bore, through which, for example, a screw bolt 23 can be passed. The second rod member part 20 is disposed between two legs 21 of a U-shaped carrier 22 and rotatably secured by the bolt 23 thereto. The U-shaped Carrier 22 is in turn attached to the underside of the seat member 4, for example screwed. However, the invention is not limited to this particular rotatable attachment of the second end 15 of the rod member 14 by means of a carrier and in particular U-shaped support 22 and a bolt 23. Any attachment suitable for rotatably securing the rod member 14 to the seat member 4 may be provided so that the seat member 4 can be pivoted up and down.

The first rod element part 19 is connected to the second rod element part 20, for example by screwing. The first rod element part 19 can be screwed into the second rod element part 20, as in the embodiment in FIG Fig. 5 is shown, or as not shown externally screwed on it. Conversely, the second rod member part 20 can be screwed into the first rod member part 19 or be screwed onto this. By this two-part design of the rod member 14 and the screw connection of the two rod member parts 19, 20, the total length of the rod member 14 can be easily adjusted and adjusted as needed. However, the rod element 14 may also have any other suitable at least two-part design. Furthermore, the rod member 14 may also be integrally formed, for example, as an elongated rod or rod. This is particularly inexpensive to manufacture and easy to assemble.

The pivoting device 10, as in the Fig. 1 to 14 is shown, from a disc 11 and two rod members 14, and an actuator 7 with its knob 18 and the spring element 6, which is additionally designed as a locking device, have the advantage that they are simple to realize and assemble, and are inexpensive to manufacture.

However, the invention is not limited to this embodiment of the pivoting device 10. Likewise, the respective seat element 4 may be provided by means of each pivoting device, which is suitable for pivoting the seat elements 4 up and down. Such a pivoting device for pivoting the seat elements 4 may be, for example, mechanically, e.g. by means of a telescopic connection, hydraulically, electromechanically and / or pneumatically, etc. The same applies to the actuating device and the locking device, which may be a separate part or alternatively part of the actuating device. Such an actuating device and / or locking device can be designed both mechanically, as described above by way of example, and electrically, electromechanically, hydraulically, and / or pneumatically actuated.

As in particular in the plan view and the side view of the seat device 1 in 3 and 4 is shown, the seat 3 forms with its seat elements 4 in the starting position a common continuous or substantially continuous seat. For example, the seat may have a triangular section with the apex of the triangle facing forward. The two seat elements 4 are hinged up and down on each of two sides of the triangular section. The seat elements 4 have, for example, a quadrangular shape or trapezoidal shape, as in Fig. 3 shown. Any other form of seating elements 4 suitable for the seating device 1 is also possible. The same applies to the seat 3.

In the 8 to 14 the seat device 1 according to the invention is shown in the lowered position or end position. The Fig. 8 and 9 show the seat device 1 with the additional backrest 2 in a perspective view and a side view. In the 10 to 14 the backrest is left out. Fig. 10 shows the seat device 1 in a plan view, Fig. 11 the seat device 1 in a side view and Fig. 12 the seat device 1 in a perspective view from below. Fig. 13 shows the seat device 1 again in a front view and Fig. 14 the seat device 1 in a rear view.

As in the Fig. 12 and 13 is shown attached to the disc 11 first end 13 of the rod member 14 of the one seat member 4, for example, counterclockwise from the previously in Fig. 5 shown position in the Fig. 12 shown position turned down as with an arrow previously in Fig. 5 is indicated. Accordingly, the first end 13 of the other rod member 14 is rotated on the disc 11 upwards. In the in Fig. 12 shown position or end position of the seat elements 4 are the first end 13 of a rod member 14, for example in the lowest position on the disc 11 and the first end 13 of the other rod member 14 at eg the highest position on the disc 11. The seat elements 4 can This position can be additionally locked by the actuator 7 and its knob 18. For this purpose, the knob 18 only needs to be released. By the spring element 6, the knob 18 automatically moves to its initial or Arreterierungsposition.

As described above, this pivoted down position of the seat elements 4, in which this together with the seat 1 form a saddle seat, the advantage that a venous jam can be prevented.

To pivot the seat elements 4 back up to the starting position, the actuator 7 is actuated with its knob 18, for example, pulled forward against the force of the spring element 6 described above, and the seat elements 4 of the seat device 1 thereby moves upwards by the user by additionally turning the knob 18, as with an arrow in Fig. 13 is indicated, clockwise.

In this case, the disc 11 rotates clockwise in accordance with and with it the first ends 13 of the two rod elements 14 to the seat member 4, for example, again the raised position or starting position in Fig. 5 reached. In this position, the seat elements 4 can also be locked by the actuator 7 and its knob 18 by the user simply let the knob 18.

In this way, a user can comfortably switch between normal sitting and saddle seating as he wishes and take full advantage of the comfort of both seat shapes.

In the 15 to 18 the seat device 1 according to the invention with the backrest 2 and the various tilt and height adjustment and the associated inclination and height adjustment levers is shown. FIGS. 15 and 16 show the seat device 1 from behind, the seat is mounted on chair rollers 8 rollable. The two FIGS. 17 and 18 each show a side view of the seat device 1 according to the FIGS. 15 and 16 ,

As in the Fig. 15, 16 and 17 1, the seat apparatus 1 includes a seat back height adjustment device 24 having a seat back height adjustment lever 25, and a seat back tilt adjustment device 26 having a seat reclining lever 27 for changing the height and inclination of the seat back 2.

Furthermore, the seat device 1 for a seat or chair inclination adjustment of the seat surface of the seat 3 and the seating elements 4 connected to it a seat Neigungsverstelleinrichtung 30 with an associated seat Neigungsverstell lever 31. In addition, the seat device for height adjustment of the seat and the seat elements 4 connected to it a seat height adjustment device 28 with an associated seat height adjustment lever 29.

If the seat device 1 is designed as a stool without a backrest 2, correspondingly eliminates the backrest height adjustment device 24 with the backrest height adjustment lever 25, and the backrest tilt adjustment 26 with the backrest tilt adjustment lever 27. In contrast, in a stool without Backrest, however, the seat reclining device 30 with the associated seat inclination adjustment lever 31 and the seat height adjustment device 28 may be provided with the associated seat height adjustment lever 29.

Although the present invention has been described above with reference to the preferred embodiments, it is not limited thereto, but modified in many ways. In particular, the embodiments described above are and embodiments combined with each other, in particular individual features thereof.

LIST OF REFERENCE NUMBERS

1

seat device

2

backrest

3

Seat

4

seat element

5

office chair

6

spring element

7

actuator

8th

chair castors

9

hinge

10

Pivot means

11

disc

12

connecting member

13

first end

14

bar member

15

second end

16

screw element

17

locking device

18

knob

19

first rod subelement

20

second rod subelement

21

leg

22

U-shaped carrier

23

bolt

24

Backrest height adjustment device

25

Backrest height adjustment levers

26

Backrest recliner

27

Backrest Neigungsverstell lever

28

Seat height adjustment device

29

Seat height adjustment lever

30

Seat recliner

31

Seat Neigungsverstell lever

Claims (15)

1. Seating device (1),
   with a seat (3) and
   with two seat elements (4),
   wherein the seat (3) has a triangular portion, the tip of the triangular portion pointing towards the forward face of the seating device (1) and on the two opposing faces of the triangular portion the seat elements (4) being connected to the seat (3) so as to be pivotable upwards and downwards and wherein in a downward pivoted position the seat elements (4) comprise with the seat (3) a saddle seat, wherein the seating device (1) has a pivot device (10) which is connected to the seat elements (4) for pivoting said seat elements (4) upwards and downwards in respect of the seat (3), wherein the pivot device (10) has a disk (11) which is fixed rotatably to the seating device (1) below the seat (3), and wherein the pivot device (10) for each seat element (4) respectively has a bar element (14) which is rotatably connected with a first end (13) to the disk (11) and with a second end (15) to the seat element (4).
2. Seating device according to claim 1, wherein in an upwardly pivoted position the seat elements (4) form a common seat surface with the seat (3).
3. Seating device according to any one of the preceding claims,
   wherein at least one seat element (4) is fixed pivotably upwards and downwards to the seat (3) by means of at least one hinge (9) and/or at least one spring element.
4. Seating device according to any one of the preceding claims,
   wherein the pivot device (10) has the same distance remote from the two seat elements (4).
5. Seating device according to any one of the preceding claims,
   wherein the two first ends (13) of the two bar elements (14) and the mid-point of the disk (11) are aligned on a common horizontal axis.
6. Seating device according to any one of the preceding claims,
   wherein the second end (15) of each bar element (14) is mounted rotatably on a carrier (22) and the carrier (22) is fixed to the underside of the associated seat element (4), the carrier being provided in particular as a U-shaped carrier (22) and having two legs (21) between which the second end (15) of the bar element (14) is arranged and is fixed rotatably to the two legs (21) by means of a screw bolt (23).
7. Seating device according to any one of the preceding claims,
   wherein at least one of the bar elements (14) is provided as one piece or is at least bipartite, wherein a bipartite bar element (14) has in particular a first and second bar element portion (19, 20), the first bar element portion (19) having the first end (13) of the bar element (14) and the second bar element portion (20) having the second end (15) of the bar element (14), the two bar element portions (19, 20) preferably being bolted to one another.
8. Seating device according to any one of the preceding claims,
   wherein the pivot device (10) is provided as a mechanical, electromechanical, pneumatic and/or hydraulic pivot device.
9. Seating device according to any one of the preceding claims,
   wherein the seating device (1) has an operating device (7), which is provided so as to operate the pivot device (10) in order to pivot the seat elements (4), the operating device (7) preferably being provided additionally as an arresting device to arrest the seat elements (4) in a maximally upwardly pivoted position, a maximally downwardly pivoted position or at least in an intermediate position.
10. Seating device according to claim 9, wherein the operating device (7) has a rotary knob (18) which is coupled to the disk (11) of the pivot device (10) such that the disk (11) can be rotated clockwise or counter-clockwise when the rotary knob (18) is operated and rotated and wherein the rotary knob (18) arrests the disk (11) so that it cannot be rotated or cannot be rotated further when the rotary knob (18) is in an arresting position, the operating device (7) preferably having a spring element (6) which is coupled to the rotary knob (18) such that the rotary knob (18) in its arresting position is moved by means of the spring element (6) as soon as the rotary knob (18) is released and the rotary knob (18) is moved for operating contrary to the spring element (6) for releasing the disk (11), so that the disk can be rotated by means of the rotary knob (18) when said rotary knob (18) is operated.
11. Seating device according to any one of the preceding claims,
    wherein the seating device (1) has a height adjustment device (7) for adjusting the height of the seat (3) and the seat elements (4) connected thereto, wherein the height adjustment device (7) is a gas spring in particular.
12. Seating device according to any one of the preceding claims,
    wherein the seating device (1) has a back rest (2), said back rest (2) being rigid or adjustable in height and/or slope, and/or the seating device has arm rests.
13. Seating device according to any one of the preceding claims,
    wherein the seat (3) and the seat elements (4) connected thereto can be adjusted in slope and/or the seat (3) has an all-round pendulum mount.
14. Seating device according to any one of the preceding claims,
    wherein the seat (3) and the seat elements (4) connected thereto are rotatable around a common axis.
15. Seating device according to any one of the preceding claims,
    wherein the seating device (1) is a chair or stool and the chair is an office chair (5) in particular and wherein the chair or stool is preferably provided to be capable of rolling.

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