DE202010010477U1 - Cantilever for temporary attachment to a chair; chair - Google Patents

Abstract

Boom (2) for temporary attachment to a chair (1), wherein on the boom (2) a pedal carrier (3) is arranged and on the pedal carrier (3) a pedal device (4) can be fastened and the pedal device (4) as a Input unit of a computer (5) or a game console is formed, wherein the chair (1) has a seating area (6) arranged in a seat height (7) of at least 40.00 cm above a footprint (8) of the chair (1) is and
the boom (2) in a position of use G of the boom (2) is fixed to the chair (1) and forms a rigid unit with the chair and in a non-use position N of the boom (2) this is detached from the chair (1),
characterized in that
- The boom (2) comprises at least two legs (14, 15, 27) which are mutually arranged at an angle α of not equal to 180 ° and preferably in a kink point (16) meet
- a first leg ...

Description

The Innovation relates to a boom for temporary attachment on a chair or a chair on which a renewal Jib is fastened, wherein arranged on the boom a pedal carrier is and on the pedal support a pedal device fastened and the pedal device as an input unit of a computer or a game console is formed, wherein the chair has a seating area which has a seat height of at least 40.00 cm above a footprint of the chair is arranged and the Boom in a position of use G of the boom on the chair is fixed and forms a rigid unit with the chair and in one Non-use position N of the boom of this detached from the chair is.

since Several years have become computer games and console games of the Genres racing games, car simulators and / or flight simulators established, the not only operated via a joystick or a keyboard but as an input unit, Steering wheels, pedals and occasionally also provide shift lever on the one hand, a defined and more realistic one Simulation and on the other hand several input signals simultaneously over hands and feet to receive and process simultaneously.

The utility model DE 20 2009 006 995 U1 teaches a game chair or a boom for a chair according to the features of the preamble of claim 1.

Of the Innovation is based on the object, a boom with the features of the preamble of claim 1 and a chair with a corresponding Extend delivery so that easy handling in particular during assembly and disassembly of the boom to the chair is possible. Furthermore, it is the task of the innovation Force for the operation of the boom and / or the Risk of damage and / or injury during use to reduce the boom. Finally it is another one Task of innovating these advantages with simple and inexpensive To realize funds. Also, one should be for both adults as well as suitable for children with regard to provided the adjustability of at least the pedal carrier become.

These The object is achieved by a boom with the features of the claim 1, a chair according to claim 18 and an arrangement solved according to claim 23. advantageous Further developments of the invention will become apparent from the dependent claims 2-17, 19-22.

When At the heart of the innovation, it is considered that the boom at least comprises two legs which are arranged at an angle of not equal to 180 ° to each other are and preferably in a break point coincide a first leg, at least in the use position G of the boom directed toward the chair is at least in the use position G aligned parallel to the footprint.

The parallel alignment of the connection to the chair and facing the chair first arm of the boom to the footprint of the chair allows the boom in a linear, Movement direction aligned parallel to the footprint To connect with the chair and to release it from the chair. Through this parallel direction of movement is the connection and Loosening the boom considerably simplifies the user learn this movement quickly self-taught and intuitive can perform. Also, this direction of movement is easier to execute specifically. In particular, if the connection location is arranged below the seat of the chair, that these are not standing for one beside or in front of the chair Person evident (because it is hidden), it is advantageous one linear and parallel to the footprint directed direction of movement execute, as this is virtually executable.

The angled arrangement (not equal to 180 °) of at least two Therefore, leg of the jib plays a big part Role, as a purely linear boom especially in chairs with a seat height of at least 40 cm above the Aufstellfläche is disadvantageous in that the actual boom frame not for an adjustment of the pedal carrier and if necessary, the table top can be used. in principle It is advantageous if the boom or the support frame for the pedal carrier and possibly the table and / or Circuit board possible in its rising Distance to the seat drops. This can be at Adjustment z. B. the pedal carrier at magnification the distance from seat to pedal carrier also at the same time an enlargement of the depth component, So the vertical distance from seat to pedal carrier be achieved, so that despite a distance adjustment along the boom a suitable for the game seat operation (gleichzeigite) Vertical distance change of seat is ensured to pedal carrier. With others Words is made possible by appropriate choice of the angle between the two legs, or more generally the connection area of the boom with the chair and the arrangement area of the preferably variably adjustable pedal carrier (possibly also variable adjustable stage support), both for small (Children) as well as for tall people (adults) suitable horizontal and vertical distance change the pedal carrier and / or table support to the seat to enable.

In an advantageous embodiment closes at least a second leg to the first leg and the second leg closes with the first leg one Angle α of preferably 100 ° to 179 ° or alternatively from 181 ° to 260 °. Especially These angular ranges allow a favorable Adjustability of the pedal and table carrier lockable on the boom. For this purpose, the second leg is preferably facing the footprint aligned. The angle range α from 100 ° to 179 ° or 181 ° to 260 ° is also for two not directly adjoining legs of the inventive Cantilever advantageous.

The at least two legs can be linear, preferably as be formed rectilinear tubes.

In A further advantageous embodiment is the boom provided with at least one rolling body of the boom at least temporarily supported on the footprint. By the at least simple support of at least one Range of the boom over a rolling body the handling comfort is significantly increased because the Self-weight of the boom during assembly or disassembly not be kept completely. Especially the assembly and disassembly of the boom on the chair required by the operator a certain amount of motor skills. If now the operator in addition to These requirements at the same time still the weight of the Jib and possibly also the weight of this arranged on this Hold input elements and prevent them from being tilted by providing a stabilizing counteracting torque is an exhausting task and difficult task. Through the rolling body is thus significantly facilitating the assembly and disassembly of the boom, because at least part of the cantilever's own weight and any supported on this mounted input elements and through the rolling elements can be easily relocated.

This is already achieved in that the rolling body at least in the use position G of the boom this against the Supported footprint.

By the arrangement of at least two rolling bodies on the boom Simplification of handling can be further increased. In particular, if the at least two rolling bodies parallel to each other and not lying on a common straight line one behind the other are arranged on the boom. By such a three-point storage are the torque forces at the handling area, for stabilization of the jib against tilting are minimized or possibly eliminated.

In a particularly advantageous embodiment is the chair where the boom is attachable as office chair and / or Swivel chair designed. When using an office chair for the temporary fixing of the boom it is possible the chair with both the office chair typical comfort features (Rotatability of the seat, armrests, adjustable Backrest, lumbar support adjustment and / or Head / neck support) a pleasant use on a writing or to allow dining table and beyond also a suitable seating for the use position the boom and thus the game operation of the seat-boom combination to ensure. In particular, the adjustable backrest allows both an upright seating position at a table, as well a "lying" sitting position during the simulation of a racing car sitting posture.

Of the Boom is preferably as substantially rod-shaped Body formed, at least in use extends radially from the chair column of the chair.

It has also proven to be advantageous if the at least two Rolling bodies at different distances to Center longitudinal axis of the boom are arranged. Thereby There is a risk of tipping over the boom, especially in one avoided or reduced by the chair detached position. If For example, the input elements such as steering wheel and pedal device would remain on the boom in the state detached from the chair on the free (not provided with a rolling body and thus raised from the ground) end of the boom a lateral tilting moment must be counteracted by the operator. By the spacing of the rolling bodies from each other and preferably in a parallel, juxtaposed manner eventually becomes a three-point bearing through the two rolling bodies and the Point of attack of the operator (eg the free end) on the boom achieved, which does not tend to tilting.

Of the Outrigger is one end in a preferred embodiment attachable to the chair with a fixing end and with at least one Rolling body at the, opposite the attachment end End area provided. This results in a similar structure a wheelbarrow, wherein the holding area at the same time as a connection area serves to the chair.

In order to is the end of the boom in the last third, last quarter, and / or in the last tenth of the total length of the boom and / or preferably arranged at the end of the boom.

As sufficient and advantageous for the wheel width of the at least one wheel designed as a rolling body could a maximum wheel width of 100.00 mm, preferably 50.00 mm and / or particularly preferably determined by a maximum of 25.00 mm.

A Easy assembly of the rolling elements is achieved when the at least two rolling elements on an axis with each other Connected and their axis via a sleeve body connected to the boom. The sleeve body can be easily attached to the boom fabric, form or non-positively attach, with a welded joint preferred becomes. The sleeve body can during assembly targeted aligned relative to the boom and fixed, so that the manufacturing accuracy necessary for the wheel axle, Storage properties and / or alignment accuracy only by a corresponding exact connection of the sleeve body can be guaranteed to the boom. The inner diameter the sleeve body is only slightly (up to 15%) larger than the diameter of the axle.

Further it is advantageous if the distance between the at least two rolling bodies to each other and / or the distance of a Rollköpers to the central longitudinal axis of the Jib is variably adjustable. It can be constructive and reliably achieved by using as a connection axis The rolling body is a threaded rod is used with corresponding nuts on the rolling elements and / or on the Connecting element to the jib (eg on the sleeve body) is fixed. The advantage of an adjustable distance between the rolling bodies to each other and / or relative to the boom longitudinal axis and / or the boom emphasis is that the support of the boom and thus the tilting behavior of the boom can be influenced. To the Example is the tilting behavior of the boom depending on the weight and Arrangement of the boom-mounted pedal and / or steering wheel unit differently. With the adjustment described above the support of the jib and the pedal mounted on it and steering wheel unit adapted and optimized according to weight distribution become.

The on the chair detachable or permanently attached fastener has a linear connection area at which the attachment end the cantilever is temporarily fixed. Preferably, the linear Connection area at least in the use position G of the chair in parallel aligned to the footprint. This becomes a linear, aligned parallel to the footprint movement for the loosening and merging of boom and Chair reached, such a movement is easy, perform reliably and self-taught. Of the Linear connection area corresponds in a further embodiment with the first leg of the boom. For example, the connection element is after Type of sleeve or a partial sleeve and the attachment end formed as in the sleeve fitting plug-in tube. Of the first leg can be clamped and / or positively with be connectable to the connection area. For example, the connection area provided with a clamping mechanism, the elastic deformation of the connection area allowed. The clamping mechanism can according to Art an eccentric, preferably similar or identical to one Bicycle quick release be trained.

In A preferred embodiment is the linear connection region at least partially tubular and formed with a receiving opening provided, the larger in their area is as the cross-sectional area of the tubular Boom. The cross-sectional area increase at the receiving opening has the advantage that an introduction the boom is facilitated. For example, the magnification the receiving opening cross-section can be achieved thereby in which the connecting pipe has an oblique cut at the receiving end having. The bevel cuts the opening enlarged in cross-section and simplifies the assembly of the boom. Alternatively, the receiving opening z. B. funnel-shaped be educated. The boom may preferably in the manner of a Round, oval or three, four, n-Kantrohres be formed.

A another embodiment comprises an at least limited over a pivot bearing rotatable mounting of the connecting element on the chair. Preferably, such a connection element is in an end position biased the pivot bearing. The rotatable mounting has the advantage that different seat height adjustment by the pivot bearing can be balanced, so that independent from the height of the seats relative to the footprint a ensures easy attachment of the boom to the chair becomes.

The Use of an office chair-like chair for the Temporary use as a game seating is also therefore of Advantage, since the seat height for the usual Height arrangements of televisions is suitable. Usually the TV is at a height of at least 40 cm above the footprint arranged so also allows a nearly horizontal line of sight from a sofa becomes. Would be in this case to be placed on the ground Game seat design used, so the operator would have to look up to the TV. That's why the use is a chair of at least 40 cm seat height and the invention Jib a beneficial combination.

The boom can also be formed in the, the chair facing end portion and thus in its connection area in the form of a fork. This has the advantage that if, for example, an office chair with a central chair column is used, The fork can embrace the chair column on both sides, thus achieving a greater overlap area in the connection of chair and outrigger and finally promoting stability and rigidity.

Further can z. B. car seats as a seat for a game chair be used. In this case, the fork can be dimensioned in this way be that it engages in existing seat rails of the car seat to connect chair (here: car seat) and the boom too guarantee. The car seat can sit on a chair pillar be mounted on an office chair.

In the non-use position of the invention Cantilever can save that footprint in an upright, set up position on a wall. On the one hand Here is the kink area of advantage, since thus the overall height of the outriggers set up in the parking position is reduced and the others are arranged in the end region of the boom rolling body an advantage, as they are easy to set up and move allow the boom.

Prefers are on the boom directly or via a holder bottles, Food, magazines, bodykit elements (design moldings), Input units such as controllers, hand brakes, shifter or other PC or console input devices arranged. Bodykitelemente are, for example, moldings / trim parts made of GRP or plastic or other modeling materials associated with the boom give a more appealing shape.

Further it is advantageous if on the boom directly or over a holder output units such as a beamer, a vibrating element, a speaker and / or a subwoofer is arranged. For example can be placed on the steering wheel table or on the steering wheel a beamer be the image output from the computer / console game on a wall performs. This will be by arranging the boom the chair not only the input hardware (steering wheel, pedals) provided, but also the visual output medium (beamer) provided and positioned. For this purpose, brackets can be on the boom itself be provided. Also, the PC or the console by a corresponding Holder be attached to the boom. This is by mounting the arm to the chair all means of execution of the game operation (except for the wall or screen).

Further can be arranged on the chair electronic devices be that over a line with an output device, connected to an input device, a console or a PC are, with an interface in the area of the boom connection of the chair is arranged. For example, under the seat is a vibrating element arranged, which must be connected to the console. Therefor may advantageously be an interface in the manner of a plug-socket connection be trained when mounting the boom to the chair in Active connection goes. This is by mounting the boom next the mechanical connection also has an electronic and / or electrical Connection between at least one mounted on the boom Device and at least one device attached to the chair reached. For example, this way can be simple and reliable a vibration element attached to the chair with one on the boom attached console.

The Innovation is explained in more detail in the drawings, these show:

1 : a schematic representation of a chair according to the innovation with mounted boom (position of use G of the boom)

2 : a schematic representation of a chair according to 1 in use on a table with the boom detached from the chair;

3a - 3c a schematic representation of alternative variants of the boom;

4 : a schematic representation of an alternative embodiment of a mounted cantilever (releasably fixed to the chair detachably);

5 a schematic representation of another alternative embodiment of a chair-boom attachment (attached to the base);

6a . 6b : a schematic representation of two jib variants in upright parking position;

7a . 7b FIG. 2 is a schematic plan view of two cantilever variants in a chair-mounted use state G with different axes; FIG.

8th : A schematic, partial sectional view of the inventive boom.

In drawing figure 1 is the preferred embodiment of the inventive Spielestuhl boom arrangement consisting of one on a chair 1 releasably mounted boom 2 shown, wherein the boom 2 a pedal carrier 3 includes on which a pedal device 4 is arranged as the input unit of a computer 5 serves. The seating area 6 of the chair 1 is in a seated height 7 of at least 40.00 cm above a footprint 8th of the chair 1 arranged. In this seat height 7 becomes the operator 9 one for usual placement heights 10 of output devices 11 comfortable viewing of the output device 11 allows. The output device 11 is a flat screen in the illustrated embodiment. Due to the increased seat height 7 of at least 40.00 cm becomes a straight line or only slightly upward line of sight of the viewer 9 reached.

The pedal carrier 3 is adjustable and lockable on the boom 2 attached.

Next to the pedal carrier 3 is on the boom 2 another steering wheel carrier 12 and on this another input unit in the form of a steering wheel device 13 arranged.

The pedal and steering wheel device 12 . 13 are over a data connection 14 . 14 ' with the computer and this in turn via a data connection 14 '' with the output device 11 connected. The data connections 14 . 14 ' . 14 '' may include a cable or be designed as wireless radio links.

The boom 2 is as a square tube with a first and a second linear thighs 14 . 15 educated. The two thighs 14 . 15 are over a break point 16 connected with each other. Alternative to the break point 16 can the two thighs 14 . 15 also be connected via an intermediate area (not shown), z. B. via a bent connector.

The one of the two thighs 14 . 15 included angle α is in 1 84 °. The first leg 14 is in position of use G of the boom 2 to the chair 1 directed and at least in the use position G parallel to the footprint 8th aligned.

The second leg 15 is with his in use position G from the chair 1 opposite end 17 to the footprint 8th aligned. This orientation of the second leg 15 , which serves as a carrier for the pedal and steering wheel carrier 3 . 12 serves, enables one for children and adult operators 9 suitable displacement of the pedal and steering wheel device 4 . 13 so for the respective operator 9 appropriate distances of the seating area 6 and / or the backrest 18 to the pedal and / or steering wheel device 4 . 13 is adjustable.

In a further embodiment of the innovation, the boom comprises 2 a rolling body 19 at the end of the boom 2 - Preferably as shown - at the free end 17 of the second leg 15 is arranged and the boom 2 to the footprint 8th supported. This feature allows for a shift of the composite boom-chair combination as well as a comfortable handling of a chair 1 dissolved boom 2 ,

The boom 2 is with his first thigh 14 , the fortifying one 20 of the jib 2 includes on the chair 1 arranged.

On the chair 1 is either near the seating area 6 , at the chair column 21 and / or on the pedestal 22 (Base) via a connecting element 23 attached. The connecting element 23 can advantageously have a linear connection area 24 to connect the attachment end 20 (Area of the first leg 14 ) with the boom 2 include. In use position G is the linear connection area 24 parallel to the footprint 8th aligned, allowing a simple merge of first leg 14 and the linear connection area 24 is reached.

An advantage of the overall device according to the invention is that it is an easy-to-use game chair 1 and also after loosening the boom 2 at z. B. a writing or dining table 25 can be used. Here is in the game mode, the angle-adjustable backrest 18 in a shallower position than during use of the chair 1 at a table 25 , The angle β is less in "table mode" than in "game mode".

For the boom 2 Different variants are possible. An easy to manufacture variant is in 3a shown here is the boom 2 only two thighs 14 . 15 or just two square tubes with a common break point 16 educated. In the 3b and 3c are for the boom 2 three thighs 14 . 15 and 27 intended. The first leg 14 has the connection function with the chair 1 held. The second leg 15 serves for the adjustable arrangement of pedal and steering wheel carrier 3 . 12 and the third leg 27 serves as a link between the second leg 15 and the at least one rolling body 19 , The important angle α for the good adjustment properties is between the first and second legs 14 . 15 , The angle γ between the second and third legs 15 . 27 can be chosen almost arbitrarily, cf. 3b and 3c , The angle γ affects the dimensioning and material requirements of the boom 2 out.

In drawing figure 4 is the boom 2 directly on the bottom of the seating area 6 arranged and cantilevered on the chair 1 attached, in turn, the first leg 14 parallel to the footprint 8th and the pedal and steering wheel carrier 3 . 12 carrying thighs 15 to the footprint 8th towards, runs downwards. In addition, on the thigh 15 a switching device via a circuit carrier 28 attached. At the supporting frame supporting the seating area 29 is a vibration lement 30 , as an additional output device next to the flat screen provided.

The boom 2 can also be on the pedestal 22 be attached, but this is an anti-rotation 31 provided for the seating area 6 when using an office chair, not facing the boom 2 or the pedal device 4 twisted when the operator 9 a not centrally located pedal 34 . 34 ' . 34 '' actuated.

According to the drawing figures 6a and 6b it is advantageous, the renewal boom 2 on a wall 35 to fix. In the upright parking position of the boom 2 takes this less floor space in z. As children's rooms, office rooms or other living or working spaces. For mounting, it is advantageous if on the wall 35 a holding device 36 is arranged, which is the boom 2 releasably holds at least in the horizontal direction. Also, the end region side arranged rolling elements 19 are for such parked position of the boom 2 an advantage, on the one hand can the boom 2 in a simple way to the wall 35 "Roll up" and on the other hand, the setting up of the boom 2 by the axis of rotation of the rolling elements and their rotatable mounting easy to carry out. In 6b is a two-legged boom 2 and in 6a a three-legged jib 2 on the wall 35 attached. The latter occupies a lower ceiling height.

A further advantageous embodiment with regard to the arrangement and design of the rolling elements 19 on the boom 2 goes out of the 7a and 7b out. According to 7a is the axis 32 for connecting the rolling elements 19 . 19 ' to each other and / or to the boom 2 centered to the boom 2 arranged, ie the distances 33 . 33 ' the two rolling bodies 19 . 19 ' to the boom 2 equal. In contrast, in 7b the distance 33 of the rolling body 19 to the boom 2 less than the distance 33 ' of the rolling body 19 ' to the boom 2 , Advantageously, the rolling bodies 19 . 19 ' and / or the axis 32 like that on the axle 32 or on the boom 2 attached that the distances 33 . 33 ' are variably adjustable. This measure has the advantage that the tilting behavior of the boom 2 can be influenced. For example, the rolling body assembly is in 7b opposite to the 7a at the (in both drawings) unchanged positioning of the pedal device 4 and the pedal carrier 3 advantageous. As the illustrated pedal device 4 three pedals 34 . 34 ' . 34 '' (Gas, brake, clutch), and on the basis of the column of the steering wheel carrier 12 a non-center, non-centered arrangement of the pedal device 4 was chosen to be advantageous, the distance configuration according to 7a tilt to the right, as there is a "preponderance" on the right boom side. This "overweight is due to the extension of the distance 33 ' on the right side of the boom 2 Taken into account.

The axis 32 is over a sleeve body 36 on the boom 2 attached. The sleeve body 36 is preferably dimensioned such that on this a pedal and / or steering wheel 3 . 12 is removable.

General is in the construction of the jib 2 Make sure that at least one adjacent leg 14 . 15 . 27 opposite to the pedal and / or steering wheel 3 . 12 supporting leg is releasably or pivotally mounted, there to disassemble the boom 2 a removal of the pedal and / or steering wheel carrier 3 . 12 is advantageous and these are preferably placed on the supporting leg.

The central longitudinal axis 37 of the jib 2 is in the 4 . 7a and 7b shown. Strictly speaking, the central longitudinal axis 37 in the side view according to 8th at two thighs 14 . 15 with two central axis sections 38 and 39 formed, with the central axis 38 parallel to the footprint 8th is aligned and the central axis 39 the footprint 8th cuts in her extension. Along the central axis 39 of the second leg 15 are the pedal and / or steering wheel carrier 3 . 12 movable and lockable (shown with double arrows). It is advantageous if the outer diameter of the sleeve body 36 smaller than the inner diameter of a tubular fastening means of the pedal and / or steering wheel carrier 3 . 12 so that the latter over the sleeve body 36 can be deducted.

Of the Seat can also be with an internal ventilation and / or a Seat heating be provided. Also, a fan can be used for simulation from wind, z. B. a convertible feeling on the chair or boom.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 202009006995 U1 [0003]

Claims (23)

Boom ( 2 ) for temporary attachment to a chair ( 1 ), wherein on the boom ( 2 ) a pedal carrier ( 3 ) and on the pedal carrier ( 3 ) a pedal device ( 4 ) and the pedal device ( 4 ) as an input unit of a computer ( 5 ) or a game console, wherein the chair ( 1 ) a seating area ( 6 ), which in a seat height ( 7 ) of at least 40.00 cm above a footprint ( 8th ) of the chair ( 1 ) and the boom ( 2 ) in a position of use G of the boom ( 2 ) on the chair ( 1 ) is fixed and forms a rigid unit with the chair and in a non-use position N of the boom ( 2 ) this from the chair ( 1 ), characterized in that - the boom ( 2 ) at least two legs ( 14 . 15 . 27 ), which are arranged at an angle α of not equal to 180 ° to each other and preferably in a break point ( 16 ) where - a first leg ( 14 ), which in position G of the jib ( 2 ) to the chair ( 1 ) is directed and at least in the use position G parallel to the footprint ( 8th ) is aligned. Boom ( 2 ) according to claim 1, characterized in that at least one second leg ( 15 ) to the first leg ( 14 ) and the second leg ( 15 ) with the first leg ( 14 ) includes an angle α of 100 ° to 179 ° or 181 to 260 °. Boom ( 2 ) according to claim 1 or 2, characterized in that the second leg ( 15 ) with its in use position G from the chair ( 1 ) opposite end to the footprint ( 8th ) is aligned. Boom ( 2 ) according to one of claims 1 to 3, characterized in that the boom ( 2 ) with at least one rolling body ( 19 . 19 ' ) is the boom ( 2 ) at least temporarily on the footprint ( 8th ) supported. Boom ( 2 ) according to claim 4, characterized in that the rolling body ( 19 . 19 ' ) at least in the use position G the boom ( 2 ) on the footprint ( 8th ) is supported. Boom ( 2 ) according to claim 4 or 5, characterized in that at least two rolling bodies ( 19 . 19 ' ) on the boom ( 2 ) are arranged. Boom ( 2 ) according to one of claims 4 to 6, characterized in that at least two rolling bodies ( 19 . 19 ' ) parallel to each other on the boom ( 2 ) are arranged. Boom ( 2 ) according to one of claims 4 to 7, characterized in that the at least two rolling bodies ( 19 . 19 ' ) at different intervals ( 33 . 33 ' ) to the central longitudinal axis ( 37 ) of the jib ( 2 ) are arranged. Boom ( 2 ) according to one of claims 4 to 8, characterized in that the distance between at least two rolling bodies ( 19 . 19 ' ) to each other and / or the distance ( 33 . 33 ' ) at least one roll body ( 19 . 19 ' ) to the central longitudinal axis ( 37 ) of the jib ( 2 ) is variably adjustable. Boom ( 2 ) according to one of claims 4 to 9, characterized in that the boom ( 2 ) at one end with a fastening end ( 20 ) with the chair ( 1 ) is fastened and the at least one rolling body ( 19 . 19 ' ) at the, the attachment end ( 20 ) opposite end portion is arranged. Boom ( 2 ) according to claim 10, characterized in that the end region of the boom ( 2 ) the last third, the last quarter, the last tenth of the total length of the boom ( 2 ) and / or preferably the end of the cantilever ( 2 ). Boom ( 2 ) according to one of claims 4 to 11, characterized in that at least one rolling body ( 19 . 19 ' ) is designed as a wheel with a maximum wheel width of 100.00 mm, preferably 50.00 mm and / or particularly preferably of at most 25.00 mm. Boom ( 2 ) according to one of claims 4 to 12, characterized in that the at least two rolling bodies ( 19 . 19 ' ) over an axis ( 32 ) are interconnected and the axis ( 32 ) via a sleeve body 36 ) with the boom ( 2 ) connected is. Boom ( 2 ) according to one of the preceding claims, characterized in that on the boom ( 2 ) are arranged directly or via a holder for bottles, foods, magazines, bodykit elements (design moldings), input units such as controllers, hand brakes, shifter or other PC or console input devices. Boom ( 2 ) according to one of the preceding claims, characterized in that on the boom ( 2 ) are arranged directly or via a holder output units such as video projector, vibration elements, speakers and / or subwoofer. Boom ( 2 ) according to one of the preceding claims, characterized in that on the chair ( 1 ) at least one electronic device is arranged, which is connected via a line to an output device, an input device, a console or a PC, wherein an interface in Area of boom connection of the chair ( 1 ) is arranged. Boom ( 2 ) according to claim 16, characterized in that the interface is designed in the manner of a plug-socket connection and when mounting the arm ( 2 ) on the chair ( 1 ) is in operative connection. Chair ( 1 ) with a connecting element ( 23 ) for temporarily fixing a jib ( 2 ) according to one of the preceding claims, characterized in that the connecting element ( 23 ) a linear connection area ( 24 ) for connecting a fastening end ( 20 ) of the jib ( 2 ) having. Chair ( 1 ) according to claim 18, characterized in that the linear connection region ( 24 ) at least in the use position G of the chair ( 1 ) parallel to the footprint ( 8th ) is aligned. Chair ( 1 ) according to claim 18 or 19, characterized in that the linear connection region ( 24 ) with the first leg ( 14 ) corresponds. Chair ( 1 ) according to one of claims 18 to 20, characterized in that the first leg ( 14 ) clamped and / or positively with the linear connection area ( 24 ) is connectable. Chair ( 1 ) according to one of claims 18 to 21, characterized in that the linear connection region ( 24 ) is at least partially tubular and has a receiving opening which is larger in area than the cross-sectional area of the tube. Arrangement comprising a chair ( 1 ) according to one of claims 15-18 and at least temporarily to the chair ( 1 ) attachable boom ( 2 ) according to any one of claims 1-14.