DE102018118282B4 - Alignment device, carrier device, seating furniture and method for producing an alignment device - Google Patents

Abstract

Alignment device (130) for a carrier device (100) for carrying a load along a carrier axis (TA), whereby a) the carrier device (100) has at least one carrier part (110) that is upper with respect to the carrier axis (TA) and one with the upper carrier part (110) comprises a lower carrier part (120) rotatably connected with respect to the carrier axis (TA) about the carrier axis (TA); b) the alignment device (130) comprises an upper alignment element (210) for relative rotation about the carrier axis (TA) on the lower carrier part (120) ) secure attachment and a lower alignment element (220) for attachment to the upper carrier part (110) secured against rotation about the carrier axis (TA), andc) the alignment device (130) for aligning the carrier parts (110, 120) in at least one The carrier configuration is designed in at least one target angular position with respect to a rotation of the carrier parts (110, 120) relative to one another about the carrier axis (TA); characterized in thatd) the upper and the lower alignment element (210, 220) each comprise at least one sliding surface (211, 221) which is inner with respect to the carrier axis (TA) and at least one sliding surface (212, 222) which is outer with respect to the carrier axis (TA), whereie) the sliding surfaces (211, 212) of the upper aligning element (210) and the sliding surfaces (221, 222) of the lower aligning element (220) are shaped complementary to one another and in the at least one carrier configuration are rotatably mounted and mechanically operatively connected to one another about the carrier axis (TA) are; andf) the inner sliding surfaces (211, 221) and the outer sliding surfaces (212, 222) of each alignment element (210, 220) run at least in sections with mutually opposite slopes with respect to the carrier axis (TA).

Description

Technical area

The invention relates to an alignment device for a support device according to the preamble of claim 1, a support device for carrying a load along a support axis according to the preamble of claim 8, a piece of seating furniture and a method for producing an alignment device.

State of the art

Self-aligning carriers with an alignment element with a beveled surface are known from the prior art, which together with a further beveled surface of a further alignment element generate a torque upon contact of the surfaces, which aligns the carrier column into a desired position.

The disadvantage of this is that the arrangement of the alignment elements can shift relative to one another due to the torque. This results in increased frictional forces and the aligning torque is reduced. Over the life of the product, this leads to premature wear of the alignment elements with a reduced or even completely lost alignment function. A reduced alignment function can manifest itself, for example, in a reduced aligning torque or an alignment only from a partial angle range.

The patent specification US 6 315 262 B1 describes a self-aligning support of the aforementioned type in the form of a self-aligning height adjustment arrangement for a chair. As a result of the height adjustment arrangement, the chair automatically returns to a desired angular position with respect to a rotation about a vertical axis if it is not held in a different angular position by a user. In addition to the aforementioned disadvantages, this results in the further disadvantage that the user always has to apply a force if he wants to hold the chair in an angular position other than the target angular position.

The patent specification DE 195 28 645 C1 discloses a further carrier of the aforementioned type in the form of an object carrier column with a foot area and a head area connected to it by a telescopic arrangement which is rotatable about a telescopic axis and adjustable in height along the telescopic axis. By means of at least one stop means unit, the head area is aligned with respect to the foot area in a desired angular position with respect to the telescope axis when the head area is free from downwardly directed loads. If the slide column carries a seat of a chair, the seat is aligned in the desired angular position as soon as no one is sitting on the seat. This carrier also does not overcome the aforementioned general disadvantages of the prior art.

Technical task

The object of the invention is to create an inexpensive alignment device for a carrier of the aforementioned type, which brings about improved reliability and an increased service life, in particular when the carrier is subjected to high mechanical loads. A further object of the invention is to create a production method for such an alignment device that is as simple as possible.

Technical solution

The subject matter of the present invention provides an alignment device which solves the technical problem in accordance with the features of claim 1. The object is also achieved by a carrier device according to claim 8, a piece of seating furniture according to claim 10 and a manufacturing method according to claim 11. Advantageous refinements result from the dependent claims.

Description of the types of execution

An alignment device according to the invention is designed for a carrier device for carrying a load along a carrier axis. The carrier device comprises at least one upper carrier part along the carrier axis and a lower carrier part connected to the upper carrier part so as to be rotatable about the carrier axis along the carrier axis. The terms “up” and “down” in the context of the invention relate to a direction parallel to the carrier axis. The terms “above” and “below” are therefore only used for better understanding and are not to be understood as restrictive. The carrier axis can be aligned vertically, whereby the terms “up” and “down” get their generally customary relation to the direction of gravity.

The alignment device comprises an upper alignment element for attachment secured against rotation about the carrier axis on the lower carrier part and a lower alignment element for attachment secured against rotation about the carrier axis on the upper carrier part.

The alignment device is designed for aligning the carrier parts in at least one carrier configuration in at least one target angular position with respect to a rotation of the carrier parts relative to one another about the carrier axis. The at least one carrier configuration can comprise a base load configuration and / or a payload configuration. If the carrier device carries a seat, for example of a chair, the base load configuration can be defined by the fact that the chair is unoccupied, and the payload configuration by the fact that a user is sitting on the seat surface. The alignment in the target angular position is advantageously carried out at least in the base load configuration so that the alignment device, for example, aligns seating furniture in a target angular position when the seating furniture is unoccupied.

The upper and the lower alignment element can each comprise at least one sliding surface that is inner with respect to the carrier axis and at least one sliding surface that is outer with respect to the carrier axis. In the following, the inner and outer sliding surface of the lower aligning element are referred to as the lower inner sliding surface and the lower outer sliding surface and the inner and outer sliding surface of the upper aligning element are referred to as the upper inner sliding surface and the upper outer sliding surface. The advantage of providing inner and outer sliding surfaces is that the mechanical loads occurring during an alignment process can be distributed more evenly over the alignment elements than if there was only a single sliding surface in each case. This reduces peak loads and the resulting wear, so that the service life and mechanical load-bearing capacity of the alignment device are increased.

The sliding surfaces of the upper alignment element and the sliding surfaces of the lower alignment element can be shaped complementary to one another. That is to say, the upper inner sliding surface can be shaped complementarily to the lower inner sliding surface and / or the upper outer sliding surface can be shaped to be complementary to the lower outer sliding surface. If the sliding surfaces are shaped to be complementary to one another, they can rest against one another in the desired angular position in a particularly space-saving manner, which results in a particularly compact design of the alignment device.

In the at least one carrier configuration, the sliding surfaces of the upper aligning element and the sliding surfaces of the lower aligning element can be rotatably mounted relative to one another about the carrier axis and be mechanically operatively connected. The sliding surfaces are mounted against one another around the support axis, for example, in that the alignment elements are each attached to the corresponding support parts, secured against rotation around the support axis. A mechanical operative connection exists, for example, in that the sliding surfaces are in frictional connection at least in sections. As a result, the sliding surfaces, when they are guided towards one another along the carrier axis, slide against one another rotating about the carrier axis in order to generate a torque about the carrier axis from a force along the carrier axis, which torque can align the alignment elements into the desired angular position. For example, a spring force along the carrier axis can automatically align the alignment elements and the carrier parts connected to them into the desired angular position.

So that the sliding surfaces can generate a torque, they must have a finite gradient greater than zero with respect to the carrier axis, at least in sections. Advantageously, the inner sliding surfaces and the outer sliding surfaces of each alignment element run at least in sections with slopes running in opposite directions with respect to the carrier axis. That is, at a given angular coordinate with respect to the carrier axis, the slope of the inner sliding surface is positive and the slope of the outer sliding surface is negative or vice versa. In particular, the gradients can have the same amount.

Slopes running in opposite directions lead to loads on the alignment elements from the inner and outer sliding surfaces occurring at different angular coordinates. This results in a more uniform load and a compensation or at least a partial compensation of forces that occur, in particular forces directed radially outward or inward with respect to the carrier axis. This reduces the wear and tear on the alignment device and increases its reliability and mechanical strength.

In each case a projection radially to the carrier axis onto a lateral surface surrounding the carrier axis of the upper inner sliding surface can have an upper inner projection curve, the upper outer sliding surface can have an upper outer projection curve, the lower inner sliding surface can have a lower inner projection curve, and the lower outer sliding surface can have a lower one form outer projection curve. In this case, the upper inner projection curve and the upper outer projection curve and / or the lower inner projection curve and the lower outer projection curve preferably at least in sections have slopes that are opposite to one another, preferably inverse to one another, with respect to the carrier axis. That is, at a given angular coordinate with respect to the carrier axis, the slope of the inner projection curve is positive and the slope of the outer projection curve is negative or vice versa.

The course of the upper inner projection curve relative to the upper outer projection curve and / or the lower inner projection curve relative to the lower outer projection curve can be shifted by 180 ° with respect to an angular coordinate with respect to the carrier axis. A shift of the projection curves against each other by 180 ° corresponds to a rotation of the corresponding sliding surfaces against each other by 180 ° around the carrier axis. As a result, mechanical loads occur on the inner and outer sliding surfaces of an alignment element at positions opposite one another with respect to the carrier axis. Furthermore, radial forces occurring during an alignment on the outer and inner sliding surface have opposite directions so that they at least partially compensate one another. This reduces mechanical loads and distributes them evenly over the alignment element, thereby reducing wear.

The projection curves can each have at least one maximum and at least one minimum in a direction along the carrier axis. Because a maximum of a lower projection curve is aligned with a minimum of the associated upper projection curve and vice versa, a stable target angular position is defined, which the alignment elements strive to achieve when they are fed to one another with sliding surfaces sliding against one another.

The maximum of one of the projection curve is advantageously located on an angular coordinate with respect to the carrier axis which differs from the minimum of the projection curve by 180 °. In this embodiment, outer and inner sliding surfaces rotated by 180 ° relative to one another about the carrier axis can guide the alignment elements into the same target angular position. A particularly reliable alignment is achieved through this interaction.

A projection curve can each have a plurality of, for example two or three, maxima and minima in order to define a plurality of desired angular positions. The extremes are advantageously spaced apart in their angular coordinate by 180 ° divided by the number of maxima or minima. In this way, an even distribution of occurring mechanical loads is achieved.

To define a plurality of, in particular two, target angular positions, the inner and outer sliding surfaces can be designed so that the inner sliding surfaces define at least one inner target angular position and the outer sliding surfaces define at least one outer target angular position different from the inner target angular position. For this purpose, for example, the inner and outer lower sliding surface can be rotated about the carrier axis at a different angle than the inner and outer upper sliding surface.

The course of at least one of the projection curves can be symmetrical about at least one extreme in relation to an axis through the extreme which is parallel to the carrier axis. As a result, a uniform alignment behavior is achieved regardless of a direction of rotation of the alignment elements about the carrier axis and thus a uniform mechanical load.

At least one projection curve, in particular each projection curve, advantageously runs continuously. In particular, the slope with respect to the carrier axis of at least one projection curve, preferably each projection curve, can also run continuously. A steady course of the projection curves and in particular their gradients prevents possible load peaks from discontinuities and thus reduces wear.

The sliding surfaces can each be formed by at least one cut surface of a hollow cylinder concentric to the carrier axis, in particular with at least one plane intersecting the carrier axis. The upper inner hollow cylinder forming the upper inner sliding surface lies at least partially within the upper outer hollow cylinder forming the upper outer sliding surface, and the lower inner hollow cylinder forming the lower inner sliding surface lies at least partially within the lower outer hollow cylinder forming the lower outer sliding surface.

The respective inner and outer hollow cylinder of an alignment element can be manufactured in one piece with one another or mechanically connected to one another. One-piece production allows particularly simple production. If an inner and an outer hollow cylinder are connected to form an alignment element, different hollow cylinders can be combined with one another depending on the requirements, for example the number and / or distribution of target angular positions or the mechanical load capacity. As a result of the combination, a large number of different requirements can be met with a small number of different components.

An outer diameter of the upper inner hollow cylinder advantageously corresponds to an inner diameter of the upper outer hollow cylinder; and / or an outer diameter of the lower inner hollow cylinder corresponds to an inner diameter of the lower outer hollow cylinder. In this way, there is no gap between the respective inner and outer hollow cylinders of an alignment element that could endanger the mechanical stability.

At least one sliding surface can comprise a plastic, in particular a self-lubricating plastic, and / or a wear-reducing and / or friction-reducing surface layer. If there is a sliding surface, in particular one entire alignment element, made of plastic, the alignment element can be produced quickly and inexpensively with a low mass. By means of embodiments of the alignment device according to the invention, forces occurring on the sliding surfaces can be kept so low that a plastic can withstand them. By using a self-lubricating plastic, for example polyoxymethylene, and / or a wear-reducing and / or friction-reducing surface layer, for example made of amorphous carbon or a metal carbide, the mechanical load on the alignment element can be further reduced.

A carrier device according to the invention is designed to carry a load along a carrier axis and comprises an alignment device according to the invention. The carrier device comprises at least one upper carrier part along the carrier axis and a lower carrier part connected to the upper carrier part so as to be rotatable about the carrier axis along the carrier axis. In particular, the upper carrier part can carry the load and the lower carrier part can be connected to a base of the carrier device for dissipating the load. Advantageously, the upper carrier part can be connected to the lower carrier part in a displaceable manner along the carrier axis, so that a length-adjustable carrier device results. For example, the upper support part can form a pressure tube of a gas pressure spring, and the lower support part can be fastened in an outer tube of the gas pressure spring.

The alignment device is designed for aligning the carrier parts in at least one carrier configuration in at least one target angular position with respect to a rotation of the carrier parts relative to one another about the carrier axis. The carrier configuration can be configured as described above for the alignment device according to the invention.

The upper alignment element of the alignment device is preferably attached to the lower support part in a manner secured against rotation about the support axis, and the lower alignment element is attached to the upper support part in a secured manner against rotation about the support axis. Alternatively, the lower alignment element can also be attached to the lower carrier part and the upper alignment element to the upper carrier part.

In this case, in the at least one carrier configuration, the sliding surfaces of the upper alignment element are mechanically operatively connected, at least in sections, to the sliding surfaces of the lower alignment element. In particular, the upper inner sliding surface can be operatively connected to the lower inner sliding surface and / or the upper outer sliding surface can be operatively connected to the lower outer sliding surface. The rotatable mounting and the operative connection bring about the effects and design options described above for the alignment device according to the invention.

In the at least one target angular position, the upper inner sliding surface can bear against the lower inner sliding surface and / or the upper outer sliding surface can bear against the lower outer sliding surface, preferably over the entire surface. These configurations result in a particularly stable alignment and a particularly compact structure of the alignment device.

The carrier device can comprise a spring element, for example a spiral spring, for generating a force that drives the alignment elements towards one another along the carrier axis.

The carrier device can in particular like a height adjustment device (height control assembly) according to US 6 315 262 B1 in which the cam elements members 30, 40) are replaced by alignment elements according to the invention, or like a slide column according to FIG DE 195 28 645 C1 in which the stop means units 64a, 68a and / or 64b, 68b are replaced by alignment devices according to the invention.

Seating furniture according to the invention is characterized in that a seat surface of the seating furniture is carried by a carrier device according to the invention. As a result, the carrier device can align the seat surface of the chair, in particular when it is unoccupied, into the at least one desired angular position. The target angular position can be selected, for example, so that the seat surface is aligned with a table or a gaming machine in front of which the seating furniture is arranged. The seating furniture can be, for example, a swivel chair or a swivel armchair.

A method according to the invention for producing an alignment device according to the invention is characterized in that the alignment elements of the alignment device are manufactured by injection molding. The alignment elements can be produced quickly and inexpensively by injection molding, for example from a plastic. Due to the reduced mechanical load on the alignment elements of an alignment device according to the invention in relation to the prior art, production by injection molding is possible, although this process leads to alignment elements with a lower mechanical load capacity than other production processes.

All features disclosed in the application documents are claimed as essential to the invention, provided that they are new to the state of the art, individually or in combination.

Figure list

Further advantages, aims and properties of the invention are explained with reference to the following description and attached drawings, in which objects according to the invention are shown by way of example. Features which in the figures correspond at least essentially with regard to their function can be identified with the same reference numerals, although these features do not have to be numbered and explained in all figures.

• [1] eine schematische Ansicht einer beispielhaften, erfindungsgemäßen Ausrichtvorrichtung;
• [2] eine weitere schematische Ansicht der Ausrichtvorrichtung;
• [3] eine weitere schematische Ansicht der Ausrichtvorrichtung;
• [4] eine schematische Schnittdarstellung der Ausrichtvorrichtung;
• [5] eine schematische Teil-Schnittdarstellung einer beispielhaften, erfindungsgemäßen Trägervorrichtung;
• [6] eine weitere schematische Ansicht der Trägervorrichtung und
• [7] einen beispielhaften Projektionskurvenverlauf der Gleitflächen eines erfindungsgemäßen Ausrichtelements.

Show it:

• [ 1 ] a schematic view of an exemplary alignment device according to the invention;
• [ 2 ] Another schematic view of the alignment device;
• [ 3 ] Another schematic view of the alignment device;
• [ 4th ] a schematic sectional view of the alignment device;
• [ 5 ] a schematic partial sectional view of an exemplary carrier device according to the invention;
• [ 6th ] a further schematic view of the carrier device and
• [ 7th ] an exemplary projection curve profile of the sliding surfaces of an alignment element according to the invention.

Fig. 1

[ 1 ] shows a schematic view of an exemplary alignment device according to the invention 130 . The alignment device 130 includes an upper alignment element 210 and a lower alignment element 220 . In the example shown, each alignment element 210 , 220 one the carrier axis TA surrounding surface MF on. The outer surfaces MF have, for example, the shape of to the carrier axis TA concentric cylinder surface sections. The alignment elements 210 , 220 can be in a carrier configuration around a carrier axis TA be rotatably arranged. The alignment elements are for better illustration 210 , 220 here along the carrier axis TA Shown spaced from each other. The lower alignment element 220 comprises one with respect to the carrier axis TA inner sliding surface 221 and one with respect to the carrier axis TA outer sliding surface 222 . The upper alignment element 210 includes complementary sliding surfaces that are not visible in this illustration. The inner sliding surfaces 221 and the outer sliding surfaces 222 each alignment element 210 , 220 run at least in sections with opposing slopes with respect to the carrier axis TA .

In the example shown, the sliding surfaces are 221 , 222 of in each case at least one cut surface one to the carrier axis TA concentric hollow cylinder 312 , 321 , 322 formed. The upper inner sliding surface is located here 211 forming upper inner hollow cylinder (not visible here) at least partially within the upper outer sliding surface 212 forming the upper outer hollow cylinder 312 , and the the lower inner sliding surface 221 forming lower inner hollow cylinder 321 lies at least partially within the lower outer sliding surface 222 forming the lower outer hollow cylinder 322 .

In the example shown, an outer diameter of the upper inner hollow cylinder corresponds to an inner diameter of the upper outer hollow cylinder 312 , and an outer diameter of the lower inner hollow cylinder 321 corresponds to an inner diameter of the lower outer hollow cylinder 322 .

The alignment elements 210 , 220 can each be made in one piece, for example from a plastic, in particular from polyoxymethylene.

Fig. 2

[ 2 ] shows a further schematic view of the alignment device 130 out 1 . In this illustration are the alignment elements 210 , 220 shown in a carrier configuration in a target angular position in which the sliding surfaces (not visible here) of the upper alignment element 210 on the sliding surfaces (not visible here) of the lower alignment element 220 issue.

Fig. 3

[ 3 ] shows a further schematic view of the alignment device 130 out 1 . This view also shows the upper inner hollow cylinder 311 with the upper inner sliding surface 211 and the upper outer sliding surface 212 of the upper alignment element 210 visible. The alignment elements 210 , 220 are here along the beam axis TA spaced from each other and about the carrier axis TA rotated against each other with respect to a target angular position. Are the alignment elements 210 , 220 along the beam axis TA The upper sliding surfaces slide towards each other 211 , 212 on the lower sliding surfaces (not visible here) and thereby generate a torque that the alignment elements 211 , 212 around the carrier axis TA in the in 2 aligns the target angular position shown.

Fig. 4

[ 4th ] shows a schematic sectional view of the alignment device 130 out 1 . The illustrated arrangement of the alignment elements 211 , 212 corresponds to the arrangement from 3 , the alignment elements 211 , 212 with one the carrier axis TA containing plane are shown cut.

Fig. 5

[ 5 ] shows a schematic partial sectional illustration of an exemplary carrier device according to the invention 100 , for example a gas pressure spring for supporting a seat surface of a chair, in particular a swivel chair. The carrier device shown 100 comprises an upper support part 110 , for example a pressure tube of the gas pressure spring, and a lower support part 120 , for example in an outer tube 119 the gas spring can be attached. For the sake of clarity, the carrier device is 100 once with ( 5b) and once without an outer tube 119 ( 5a) shown. The upper part of the carrier 110 is for example in the lower support part 120 along a carrier axis TA movable and around the carrier axis TA rotatably guided.

The carrier device 100 is to the left of the beam axis TA in the outside view and to the right of the carrier axis in one of the carrier axis TA containing section plane shown.

The carrier device shown 100 comprises an alignment device 130 for aligning the carrier parts 110 , 120 in a carrier configuration in a target angular position with respect to a rotation of the carrier parts 110 , 120 relative to each other around the carrier axis TA . The carrier configuration can be, for example, a base load configuration in which one of the carrier device 100 worn seat (not shown) is unoccupied.

The upper alignment element 210 the alignment device 130 is on the lower support part 120 versus rotation about the carrier axis TA secured attached, and the lower alignment element 220 is on the upper support part 110 versus rotation about the carrier axis TA secured attached.

The carrier device shown 100 comprises a spring element 140 , for example a coil spring, which holds the alignment elements 210 , 220 leads towards each other in the carrier configuration. This allows the sliding surfaces (not labeled) of the upper alignment element 210 and the lower alignment element 220 slide against each other, so that a torque arises that the alignment elements 210 , 220 and thus also the support parts 110 , 120 to each other around the carrier axis TA aligns in the target angular position.

Fig. 6

[ 6th ] shows a further schematic view of the carrier device 100 out 5 .

Fig. 7

[ 7th ] shows an exemplary course of the upper projection curves 111 , 112 the sliding surfaces of an upper alignment element according to the invention radially to the carrier axis TA on one of the carrier axis TA surrounding surface MF . A height is shown in each case z the upper projection curve 111 , 112 along the beam axis TA depending on an angular coordinate φ with respect to the carrier axis TA .

The inner projection curve 111 and the outer projection curve 112 have at least some sections, in particular for each angular coordinate φ, slopes that run in opposite directions to one another, in particular that are inverse to one another, with respect to the carrier axis TA .

Each projection curve shown 111 , 112 has a maximum MAX and a minimum MIN which are spaced apart from one another in particular by 180 °. Advantageously, the maximum falls in this case MAX the inner projection curve 111 and the minimum MIN the outer projection curve 112 together and vice versa. In the example shown, this corresponds to a shift in the projection curves 111 , 112 against each other by 180 °.

The projection curves 111 , 112 run around their extremes, for example MAX MIN symmetrical to one of the carrier axis TA parallel axis through the respective extremum MAX MIN .

In the example shown, the projection curves run 111 , 112 with respect to the carrier axis TA steadily.

For a lower alignment element, within the scope of the invention, analog courses of the associated lower inner projection curve ( 121 ) and lower outer projection curve ( 122 ) possible.

List of reference symbols

100

contraption

110

upper support element

111

upper inner projection line

112

upper outer projection line

120

lower support element

119

Outer tube

121

lower inner projection curve

122

lower outer projection curve

130

Alignment device

140

Spring element

210

upper alignment element

211

upper inner sliding surface

212

upper outer sliding surface

220

lower alignment element

221

lower inner sliding surface

222

lower outer sliding surface

311

upper inner hollow cylinder

312

upper outer hollow cylinder

321

lower inner hollow cylinder

322

lower outer hollow cylinder

MAX

maximum

MF

Outer surface

MIN

minimum

TA

Carrier axis

z

Height angle coordinate

Claims (11)

Alignment device (130) for a carrier device (100) for carrying a load along a carrier axis (TA), wherein a) the carrier device (100) has at least one carrier part (110) that is upper with respect to the carrier axis (TA) and one with the upper carrier part (110) ) comprises a lower carrier part (120) which is rotatably connected with respect to the carrier axis (TA) about the carrier axis (TA); b) the alignment device (130) has an upper alignment element (210) for attachment to the lower carrier part (120) secured against rotation about the carrier axis (TA) and a lower alignment element (220) for rotation about the carrier axis (TA) the upper carrier part (110) includes secured attachment, and c) the alignment device (130) for aligning the carrier parts (110, 120) in at least one carrier configuration in at least one target angular position with respect to a rotation of the carrier parts (110, 120) relative to one another about the carrier axis (TA) is designed; characterized in that d) the upper and lower aligning elements (210, 220) each comprise at least one sliding surface (211, 221) inner with respect to the carrier axis (TA) and at least one outer sliding surface (212, 222) with respect to the carrier axis (TA) , wherein e) the sliding surfaces (211, 212) of the upper aligning element (210) and the sliding surfaces (221, 222) of the lower aligning element (220) are shaped complementary to one another and are rotatably supported in the at least one carrier configuration about the carrier axis (TA) are mechanically operatively connected; and f) the inner sliding surfaces (211, 221) and the outer sliding surfaces (212, 222) of each alignment element (210, 220) run at least in sections with mutually opposite slopes with respect to the carrier axis (TA). Alignment device (130) according to Claim 1 , characterized in that in each case a projection radially to the carrier axis (TA) onto a lateral surface (MF) of the upper inner sliding surface (211) enclosing the carrier axis (TA) an upper inner projection curve (111), the upper outer sliding surface (212) an upper one outer projection curve (112), the lower inner sliding surface (221) forms a lower inner projection curve (121) and the lower outer sliding surface (222) forms a lower outer projection curve (122), the upper inner projection curve (111) and the upper outer projection curve (112) and / or the lower inner projection curve (121) and the lower outer projection curve (122) have, at least in sections, opposing, preferably inverse, gradients with respect to the carrier axis (TA). Alignment device (130) according to Claim 2 , characterized in that the course of the upper inner projection curve (111) compared to the upper outer projection curve (112) and / or the lower inner projection curve (121) compared to the lower outer projection curve (122) with respect to an angular coordinate (φ) with respect to the carrier axis ( TA) is shifted by 180 °. Alignment device (130) according to one of the Claims 2 to 3 , characterized in that the projection curves (111, 112, 121, 122) in a direction along the carrier axis (TA) each have at least one maximum (max) and at least one minimum (min), with a) the maximum (max) one of the projection curve (111, 112, 121, 122) preferably lies on an angular coordinate (φ) different from the minimum (min) of the projection curve (111, 112, 121, 122) by 180 ° with respect to the carrier axis (TA), and / or c) the course of at least one of the projection curves (111, 112, 121, 122) is preferably symmetrical about at least one extremum in each case to an axis through the extremum parallel to the carrier axis (TA). Alignment device (130) according to one of the Claims 2 to 4th , characterized in that at least one projection curve (111, 112, 121, 122), preferably each projection curve (111, 112, 121, 122), runs continuously, preferably with a continuously running slope with respect to the carrier axis (TA). Alignment device (130) according to one of the Claims 1 to 5 , characterized in that the sliding surfaces (211, 212, 221, 222) of at least one cut surface each of a hollow cylinder (311, 312, 321, 322) concentric to the carrier axis (TA), preferably with at least one intersecting the carrier axis (TA) Plane, are formed, wherein a) the upper inner hollow cylinder (311) forming the upper inner sliding surface (211) is at least partially within the upper outer hollow cylinder (312) forming the upper outer sliding surface (212), and b) the lower inner one Lower inner hollow cylinder (321) forming the sliding surface (221) lies at least partially within the lower outer hollow cylinder (322) forming the lower outer sliding surface (222), preferably c) an outer diameter of the upper inner hollow cylinder (311) an inner diameter of the upper outer hollow cylinder Corresponds to (312); and / or d) an outer diameter of the lower inner hollow cylinder (321) corresponds to an inner diameter of the lower outer hollow cylinder (322). Alignment device (130) according to one of the Claims 1 to 6th , characterized in that at least one sliding surface (211, 212, 221, 222) comprises a plastic, in particular a self-lubricating plastic, and / or a wear-reducing and / or friction-reducing surface layer. Carrier device (100) for carrying a load along a carrier axis (TA) with an alignment device (130) according to one of the Claims 1 to 7th , wherein a) the carrier device (100) has at least one carrier part (110) which is upper along the carrier axis (TA) and a lower carrier part (120) rotatably connected to the upper carrier part (110) about the carrier axis (TA) along the carrier axis (TA) includes; and b) the alignment device (130) is designed for aligning the carrier parts (110, 120) in at least one carrier configuration in at least one target angular position with respect to a rotation of the carrier parts (110, 120) relative to one another about the carrier axis (TA), characterized in that c) the upper alignment element (210) of the alignment device (130) on the lower support part (120) is secured against rotation about the support axis (TA), and d) the lower alignment element (220) on the upper support part (110) opposite rotation around the carrier axis (TA) is secured, wherein in the at least one carrier configuration the sliding surfaces (211, 212) of the upper aligning element (210) are mechanically operatively connected at least in sections to the sliding surfaces (221, 222) of the lower aligning element (220) . Carrier device (100) according to Claim 8 , characterized in that in the at least one target angular position the upper inner sliding surface (211) rests against the lower inner sliding surface (221) and / or the upper outer sliding surface (212) rests against the lower outer sliding surface (222), preferably over the entire surface. Seating furniture, characterized in that a seat surface of the seating furniture of a carrier device (100) according to one of the Claims 8 to 9 is worn. Method for producing an alignment device (130) according to one of the Claims 1 to 7th , characterized by the following step: injection molding of the alignment elements (210, 220) of the alignment device (130).

Images