DE102017128013A1 - Radlenker for a suspension in a vehicle - Google Patents

Abstract

The disclosure includes a trailing arm (100) for a suspension in a vehicle, comprising a suspension arm (101) in which a wheel bearing (103) for supporting a wheel is formed; a first spring leg (105-1) extending from the suspension arm (101) and closed by a first flange plate (107-1), the first flange plate (107-1) having at least one fixing aperture (109-1) for frictionally securing the first flange plate (107-1) to a body component, the first spring leg (105-1) being made more elastic than the suspension arm (101) for a leaf spring-like mounting of the wheel, and a second spring leg (105-2), which extends from the suspension arm (101) and which is closed by a second flange plate (107-2), wherein the second flange plate (107-2) at least one further Befestigungsdurchbruch (109-2) for frictional attachment of the second flange plate (107- 2) on a body component, wherein the second spring leg (105-2) for a leaf spring-like mounting of the wheel elastic than the Radaufhängungssch is formed, and wherein the trailing arm (100) is integrally formed from a fiber composite plastic.

Description

The present disclosure relates to a suspension link for a suspension in a vehicle.

When Radlenker in an arrangement of suspension elements, such as a suspension, a vehicle sheet metal, elastomer hybrid handlebar or aluminum handlebar can be used in extruded or extruded form. A Radlenker is typically realized by a Radlenkerkörper with a wheel bearing at one end of the Radlenkerkörpers for receiving a bearing, such as a chassis bearing. In addition, the Radlenker can also have more bearings for the movable connection of the Radlenkers to a body component. Typically, the Radlenker is rigid and is combined with a spring element to realize a sprung connection of a wheel to the body component. Disadvantageously, in this embodiment, a plurality of suspension components may be necessary to realize a sprung suspension of a wheel to the body component. As a result, the production costs, the weight of the suspension and the number of chassis parts in a vehicle may be disadvantageously increased.

It is the object of the present disclosure to provide a more efficient form of a wheel link for a wheel suspension of a wheel in a vehicle, in particular a sprung suspension of the wheel without the aid of an additional spring element.

This object is solved by the features of the independent claim. Advantageous embodiments of the disclosure are the subject of the dependent claims, the description and the accompanying figures.

The present disclosure is based on the finding that the above object can be achieved by a trailing arm, which is fixedly connected to the vehicle body at a first end of the handlebar and has a receptacle for a wheel at a second end of the handlebar. The trailing arm is elastically formed between the Radlenkerenden to follow movements of the wheel and cushion mechanical vibrations of the wheel and not to transfer to the vehicle body.

According to a first aspect, the disclosure relates to a trailing arm for a suspension in a vehicle, having a suspension arm, in which a wheel bearing receptacle for the storage of a wheel is formed, and having a first spring leg, which extends from the suspension arm and which by a first flange plate is completed, wherein the first flange plate has at least one Befestigungsdurchbruch for non-positive attachment of the first flange on a body component, wherein the first spring leg is formed for a leaf spring-like mounting of the wheel elastic than the suspension legs. Furthermore, the trailing arm comprises a second spring leg, which extends from the suspension arm and which is closed by a second flange plate, wherein the second flange plate has at least one further Befestigungsdurchbruch for frictional attachment of the second flange plate to a body component, wherein the second spring leg for a leaf spring-like storage the wheel is made more elastic than the suspension arm; and wherein the trailing arm is integrally formed of a fiber composite plastic.

With a flexurally elastic design of the semi-trailing arm can be omitted in contrast to conventional Radlenkern a rotatable mounted connection to the body component. Accordingly, the trailing arm can be connected via the flange plates fixed to the body component. A particularly double rotatable connection of a wheel to the body component can be avoided. The wheel can be connected via a wheel bearing, which is insertable into the wheel bearing receptacle, with the trailing arm and the trailing arm can immovably, in particular releasably connected to the body component. For example, the semi-trailing arm can be bolted to the body component, welded, glued, riveted or pressed. To create the connection between the respective flange plate and the body component, a fastening means can be introduced into the respective fastening aperture and into the body component. The attachment of the semi-trailing arm to the body component can be made detachable, in particular by means of a screw connection and / or clamp connection.

The spring legs are in particular elastically deformable with respect to torques which act on the wheel suspension leg, so that vibrations or vibrations of a wheel connected to the trailing arm via the wheel bearing receptacle can be received by the spring legs. With the elastic deformation of the semi-trailing arm these forces are absorbed and not or only reduced transferred to the body component. The semi-trailing arm may be completely or partially elastic. In particular, the suspension arm may be rigid or bendable with respect to the spring legs to improve a tight fit of a wheel bearing in the Radlageraufnahmeabschnitt. Furthermore, the spring legs, in particular the Flange plates rigid or bendable trained to improve the tight fit of the semi-trailing arm on the body component.

With the leaf spring-like mounting, in particular along a connecting axis, which extends from the suspension arm to one of the spring legs, the suspension arm can be continuously elastically twistable and / or bendable connected to the respective flange plate. Bending and torsional forces transmitted by the wheel to the semi-trailing arm can be absorbed by the trailing arm, in order to prevent transmission of these forces to the body component or to reduce it in amplitude. With a bend and / or a torsion of the Radlenkerkörpers a mechanical stress in the Radlenkerkörper can increase, which can be implemented in a compensating movement, in particular a compensation vibration of the suspension arm at a decrease in the acting forces.

Furthermore, by a load on the semi-trailing arm, which acts in particular on a spring leg or two spring legs, a bias of the semi-trailing arm can be realized, which can increase the traction of the wheel advantageous. As a result, in particular the driving dynamics of the trailing arm can be improved and / or a more efficient rolling movement of the wheel can be realized by the spring-mounted support of the wheel on a road.

With a continuous elastic design of the trailing arm between the wheel bearing and one of the flange plates, the entire available extent of the trailing arm can be used to achieve a spring action. In particular, with respect to a deflection of the wheel along a spring travel on the respective material portion of the trailing arm lower deformation forces act, the longer the extension of the trailing arm is perpendicular to the spring travel. Accordingly, by increasing the distance between the wheel bearing receiver and one of the flange plates, a greater spring deflection can be achieved while maintaining a maximum elastic elongation of the material used.

Furthermore, the trailing link may be materially connected by lamination with the body component in a production of plastic composite material, wherein the body component may also be formed of plastic composite material, so that the trailing arm and the body component can be made in one piece. The plastic composite material may in particular be a fiber-reinforced plastic composite material in which fibers, for example carbon and / or glass fibers are embedded. The fibers may be incorporated in a liquid plastic or resin which is solidified by cooling or a chemical reaction to form the semi-conductor. Alternatively, the semi-trailing arm may be formed by bonding a plurality of fiber-containing plastic layers which bond cohesively.

In one embodiment, the first spring leg and the second spring leg are tapered relative to the suspension leg to provide greater elasticity than the suspension leg.

As a result, the advantage is achieved that the weight of the semi-trailing arm can be reduced. Furthermore, a trailing arm cross section can be adapted according to the desired bending, torsional and / or vibration resistance. A smaller trailing arm cross-section can reduce the strength of the Radlenkers and increase the elasticity or flexibility of the Radlenkers.

With the tapered shape, the spring legs can be formed waisted, wherein a trailing arm cross section of the link body can be reduced from the wheel bearing receptacle to the flange plate. Further, the waist can be formed inversely, so that a Schräglenkerquerschnitt on the wheel bearing and on the two flange plates is greater than another trailing arm cross section of a connecting portion of the trailing arm, which may be spaced from the wheel bearing and the flange plates.

In one embodiment, the wheel suspension leg has at least one material thickening, in particular a reinforcing rib, which increases the rigidity or the torsional strength of the suspension arm.

The reinforcing rib may form a protrusion on an outer surface and / or an inner surface of the trailing arm, wherein the transition from the outer surface and / or the inner surface to the reinforcing rib may be cohesively formed. The reinforcing rib can follow the shape of the spring legs and / or the shape of the suspension arm and in particular have a curved shape. The reinforcing rib can be formed from fiber composite plastic or metal, for example steel or aluminum. In particular, the reinforcing rib may be formed integrally with the spring legs and the suspension leg. With the reinforcing rib, the torsional and / or bending properties of the trailing arm can be adapted locally without changing the shape and / or material thickness of the spring leg and / or the suspension arm. It can be compared to other areas of the Schräglenkers are stronger reinforced by external forces loaded areas, so that a gain of the semi-trailing arm can be implemented as possible to save weight.

In one embodiment, the first spring leg and the second spring leg are each formed elastically to take over the function of a support spring.

As a result, the advantage is achieved that an otherwise necessary suspension spring for cushioning wheel movements may not be necessary, since a suspension is realized directly on the semi-trailing arm. Thus, in particular, the number of mechanical parts and / or mechanical connections can be reduced, so that the suspension can have a lower maintenance and / or manufacturing costs. The elastic design of the spring legs can be realized by the production of the spring legs of an elastic fiber composite plastic. In particular, elastic bending sections which are reduced in cross section may be formed in the spring legs.

In one embodiment, the suspension arm has a first curved portion which is configured to arrange the wheel bearing receptacle in a link plane at an angle to the flange plates.

As a result, an advantageous orientation of the wheel bearing receptacle or the orientation of the wheel with respect to the body component can be realized. For example, the attachment points of the trailing arm can be aligned with the body component at an angle to a direction of travel of the vehicle and the wheel bearing receptacle to be aligned with the wheel parallel to the direction of travel of the vehicle. With the first curved portion of the trailing arm can form a curved wishbone, which is designed to realize a side guide of the wheel.

The curvature section can extend continuously over the entire trailing arm, so that a uniform curvature can be realized between the wheel bearing receptacle and the flange plates. The curvature portion may further have different angles of curvature in order to adapt the shape of the trailing arm. For example, the trailing arm in a centrally disposed portion have a greater curvature than at the wheel bearing receptacle or the flange plates.

In one embodiment, the suspension arm has a second curvature section, which is designed to offset the wheel bearing receptacle relative to the arm level, in particular to arrange it in a spaced manner.

The trailing arm is typically aligned along a wheel axis, wherein the distance of the trailing arm to a bearing point of the wheel on a road surface over the distance of the wheel axle from the road surface can be greater or smaller. The wheel bearing mount is typically arranged concentrically around the wheel axle and the oblique link can be arranged at a distance from the wheel axle in the link plane. In order to realize this distance, the wheel bearing receptacle can be offset by a distance from the link plane with the second curved section. For example, the trailing arm may be farther away or closer than the wheel axle with respect to the support point of the wheel. With the exception of the second curved portion of the trailing arm can be planar, so that with the type of formation of the second curved portion and the connection position, in particular a connection height with respect to the Radauflagepunkt of the wheel can be adapted to a road surface.

Due to the formation of two spring legs of the trailing arm may have two spaced attachment points for attachment of the semi-trailing arm to the body component. With the suspension arm and the two spring legs of the semi-trailing arm can be shaped y-shaped. The spring legs can unite before the first curvature portion or only before the second curvature portion. When combined at the second curvature portion, the trailing arm may have a V-shape.

In one embodiment, the fastening apertures are arranged parallel to the link plane. The spring legs can be firmly connected to the body component via the flange plate in each case by means of a fastening means, which passes through the respective fastening opening. The body component may have a receptacle for the fastening means into which the fastening means can be inserted and connected to the body component with a positive, positive and / or cohesive connection. The flange plates may each have a plurality of fastening apertures with which the spring legs may be attached to the body component. The flange plates are aligned in particular perpendicular to the link plane, wherein the flange plates may have fastening apertures arranged in the quadrangle. In each case two fastening breakthroughs can be arranged spaced on one of the sides of the link plane.

The fastening screw may engage a formed in the bodywork component thread or be inserted through an opening formed in the body panel breakthrough and be secured behind the bodywork component with a nut. With a screw, the semi-trailing arm can be detachably connected to the body component.

In one embodiment, the flange plates each have a planar-shaped support section, which can be placed on the body component or can be applied to the body component in order to connect the flange plate to the body component.

In one embodiment, between the body component and the respective support portion, a vibration damping element, in particular a rubber or elastomer plate for damping mechanical vibrations may be arranged.

Thereby, the advantage is achieved that vibrations with a low vibration amplitude, which are in particular smaller than a thickness of the vibration damping element, can be efficiently absorbed and damped by the vibration damping element. Furthermore, the vibration damping element may be configured to absorb and dampen torques, which are produced by bending of the trailing arm, by elastic deformation in order to prevent the attachment points and / or the body component from being subjected to these torques. Accordingly, the mechanical stress on the attachment points and / or the body component can be advantageously reduced. In particular, by a combination of the elastically resilient oblique link with the vibration-damped connection of the semi-trailing arm to the body component, an efficient mechanically-decoupled connection of a wheel to a vehicle body can be realized.

The support sections may be plate-shaped and arranged at an angle to the wheel suspension leg and / or the spring legs, in particular parallel to a surface normal of the link plane. As a result, the fastening points can be arranged below and / or above the link plane, in particular at a distance from the link plane. The attachment points may be framed by the vibration damping element to realize a more efficient absorption of the mechanical vibrations. The vibration damping element may be particularly suitable to absorb forces which act parallel to the link plane, in particular by elastic deformation.

In one embodiment, the trailing arm has a triangular base surface, the wheel bearing and a respective flange plate forming the corners of the triangular base surface. Thereby, the advantage is achieved that the trailing arm with the flange plates has two spaced mounting points for attachment to a body part in order to realize an efficient stable connection of the trailing arm to the vehicle.

In one embodiment, the plastic composite material is fiber-reinforced and has a fiber layer with which fibers embedded in the fiber-reinforced plastic composite material are aligned in the direction of a center point of the semi-trailing arm. As a result, the advantage is achieved that the elastic properties of the semi-trailing arm are adaptable to the fiber layer. The fibers may have higher strength in the fiber direction than perpendicular to the fiber direction.

In one embodiment, the trailing link comprises a rod-shaped reinforcing member connecting the suspension arm to the first spring leg and / or the second spring leg to increase flexural strength of the semi-trailing arm. The rod-shaped reinforcing element can be formed from a fiber-reinforced plastic or a metal, in particular aluminum or steel. Furthermore, the rod-shaped reinforcing element may be a hollow profile body. Furthermore, the rod-shaped reinforcing element can be screwed, welded or glued to the trailing arm. A rod-shaped reinforcing element of fiber-reinforced plastic may in particular be formed integrally with the spring legs and the suspension leg.

In one embodiment, a Aufbaufederaufnahme and / or a Endabstandaufnahme are formed on an outer surface of the suspension arm. As a result, the advantage is achieved that a body spring and / or a final distance can be connected to the trailing arm. In particular, the trailing arm can be integrated with the Aufbaufederaufnahme in a multi-piece suspension. With the Aufbaufederaufnahme a vehicle body can be mounted sprung on the semi-trailing arm via a body spring, in particular supported.

In one embodiment, the trailing arm is formed by a hollow profile body. A hollow profile body in particular achieves the advantage of reducing the weight of the semi-trailing arm, wherein in addition the bending and / or torsional rigidity of the trailing arm can advantageously be increased. Furthermore, by means of an adapted shape of the hollow body profile, a directionally different torsional rigidity, in particular one advantageous Reduced torsional and / or bending stiffness be realized. Further, with a reduction in the amount of material used to make the semi-trailing arm, the cost of manufacturing the wheel follower can be reduced.

In one embodiment, the suspension arm has a damping element receptacle, a wheel brake receptacle, a passage for receiving a wheel bearing and / or a sensor receptacle, in particular for receiving an antilock system sensor.

The wheel bearing receiver can form an integrated mounting platform for several vehicle components. In particular, mounting points for a vehicle brake, a shock absorber, a spring element and / or further link arms may be provided on the wheel bearing mount.

A wheel can be rotatably mounted on the Radlenkeraufnahme mounted with the semi-trailing arm. The circular passage may have an inner surface of metal, plastic composite, elastomer or a combination of these materials to improve the tightness of the wheel bearing in the circular passage, or to facilitate changing the wheel bearing.

The wheel bearing mount can form a fully integrated suspension component, which can accommodate the brake system of the wheel and / or a shock absorber or other spring elements of the chassis. As a result, in particular, the total weight of the suspension can be reduced because with the integration of the wheel brake and / or damping element receiving additional suspension parts can be omitted.

• 1 einen Schräglenker in einer Ausführungsform;
• 2 einen Schräglenker in einer Ausführungsform;
• 3 einen Schräglenker in einer Ausführungsform; und
• 4 einen Schräglenker in einer Ausführungsform.

Further embodiments will be explained with reference to the accompanying figures. Show it:

• 1 a semi-trailing arm in one embodiment;
• 2 a semi-trailing arm in one embodiment;
• 3 a semi-trailing arm in one embodiment; and
• 4 a semi-trailing arm in one embodiment.

1 shows a perspective view of a semi-trailing arm 100 for a suspension in a vehicle. The semi-trailer 100 includes a suspension leg 101 in which a wheel bearing mount 103 is formed for the storage of a wheel. Furthermore, the semi-trailing arm comprises 100 a first spring leg 105-1 extending from the suspension leg 101 extends and which by a first flange plate 107-1 is completed. The first flange plate 107-1 has a fastening breakthrough 109-1 for non-positive attachment of the first flange plate 107-1 on a body component.

Furthermore, the trailing arm comprises a second spring leg 105-2 extending from the suspension leg 101 extends and which by a second flange plate 107-2 is completed. The second flange plate 107-2 has at least one further fastening breakthrough 109-2 for non-positive attachment of the second flange plate 107-2 on a body component.

Furthermore, the first spring leg 105-1 and the second spring leg 105-2 each for a leaf spring-like mounting of the wheel elastic than the suspension legs 101 formed and the semi-trailing arm 100 is formed in one piece from a fiber composite plastic.

The semi-trailer 100 is formed by a hollow profile body and the suspension arm 101 with the spring legs 105-1 . 105-2 Y-shaped connected. A cross section of the semi-trailing arm 100 takes off from the wheel bearing mount 103 in the direction of the spring legs 105-1 . 105-2 to and in one end area in front of the flange plates 107-1 . 107-2 from. The flange plates 107-1 . 107-2 are rectangular in shape and each have four Befestigungsdurchbrüche, with only three Befestigungsdurchbrüche are visible. The fastening breakthroughs 109-1 . 109-2 are arranged in a flange plane which is perpendicular to the link plane 111 runs.

The spring legs 105-1 . 105-2 are opposite the suspension arm 101 Tapered shaped to provide greater elasticity than the suspension hanger 101 to obtain. With the taper, each spring leg 105-1 . 105-2 at the starting point of the respective flange plate 107-1 . 107-2 the smallest cross-sectional area. The spring legs 105-1 . 105-2 are formed rectangular with rounded edges. The semi-trailer 100 has a triangular base, wherein the wheel bearing receptacle 103 and in each case a flange plate 107-1 . 107-2 form the corners of the triangular base.

The suspension leg 101 has a first curvature section 113 on which is formed, the wheel bearing receiver 103 in a handlebar level 111 angled to the flange plates 107-1 . 107-2 to arrange. In particular, the flange plane closes with a plane which supports the wheel bearing 103 contains an angle, for example, in the angular range of 45 ° to 90 °. The Wheel recording 103 However, it can also be arranged almost parallel to the flange plane.

The suspension leg 101 has a second curvature section 115 on which is formed, the wheel bearing receiver 103 in terms of the handlebar level 111 offset, in particular spaced to arrange. The second curvature section 115 closes at the first bend section 113 and may additionally the curvature of the first curvature section 113 continue. The second curvature section 115 also has two reinforcing ribs 129-1 . 129-2 on which the wheel bearing mount 103 opposite the suspension arm 101 in the direction of the handlebar level 111 support.

With the y-shaped arrangement of the suspension arm 101 with the two spring legs 105-1 . 105-2 , points the semi-trailing arm 100 a triangular base, with the wheel bearing 103 and in each case a flange plate 107-1 . 107-2 form the corners of the triangular base. The spring work can be done on the two spring legs 105-1 . 105-2 be distributed to a uniform load of the semi-trailing arm 100 to realize.

On an outer surface 119 of the suspension leg 101 is a construction leather pickup 121 formed, with which a bodybuilder with the semi-trailing arm 100 is connectable. The construction leather pickup 121 is on a side facing away from the roadway of the semi-trailing arm 100 in the region of the first bending section 113 arranged.

The spring legs 105-1 . 105-2 have a curved shape, with which the spring legs 105-1 . 105-2 are semicircular connected and continuously formed in the suspension leg 101 to ensure an efficient and even bending and / or torsional load on the connection between wheel bearing support 103 and the flange plates 107-1 . 107-2 to realize.

The suspension leg 101 has a Radbremsenaufnahme 123 , a passage 125 for receiving a wheel bearing and / or a sensor receptacle 127 , in particular for receiving an anti-lock system sensor. The wheel brake pickup 123 is on the side of the wheel bearing mount 103 arranged. The passage 125 is part of the wheel bearing mount 103 , and forms a cylindrical receptacle for a wheel bearing. The sensor holder 127 is spaced laterally offset adjacent to the wheel brake 123 arranged. The wheel brake pickup 123 is formed by two spaced protruding fastening passages which are parallel to the passage 125 are aligned.

The flange plates 107-1 . 107-2 each have a planar shaped support portion 117-1 . 117-2 on which can be placed on the body component to the flange plate 107-1 . 107-2 to connect with the bodywork component.

2 shows a schematic side view of a semi-trailing arm 100 for a suspension in a vehicle. The semi-trailer 100 includes a suspension leg 101 in which a wheel bearing mount 103 is formed for the storage of a wheel. Furthermore, the semi-trailing arm comprises 100 a first spring leg 105-1 extending from the suspension leg 101 extends and which by a first flange plate 107-1 is completed. The first flange plate 107-1 has a fastening breakthrough 109-1 for non-positive attachment of the first flange plate 107-1 on a body component.

Furthermore, the semi-trailing arm comprises 100 a second spring leg 105-2 extending from the suspension leg 101 extends and which by a second flange plate 107-2 is completed. The second flange plate 107-2 has at least one further fastening breakthrough 109-2 for non-positive attachment of the second flange plate 107-2 on a body component.

The handlebar level 111 closes with a surface normal of the support sections 117-1 . 117-2 an acute angle, which is for example in an angular range of 5 ° to 20 ° or 40 °. This is the semi-trailing arm 100 inclined in the direction of the roadway. The lowering of the wheel bearing mount 103 , which by the inclined arrangement of the spring legs 105-1 . 105-2 and the wheel bearing socket 101 can be achieved by the second bending section 115 be balanced. Furthermore, the second bending section realizes 115 a higher in relation to the roadway arrangement of the wheel bearing 103 opposite the flange plates 107-1 . 107-2 ,

The wheel bearing receiver 103 assigns four to the breakthrough 125 molded fastening breakthroughs on, with two fastening openings below and two fastening openings above the opening 125 are arranged.

The suspension leg 101 has a damping element receptacle 201 , a wheel brake pickup 123 , a passage 125 for receiving a wheel bearing and / or a sensor receptacle 127 , in particular for receiving an anti-lock system sensor. The damping element holder 201 is spaced below the wheel bearing 103 arranged and is circular.

3 shows a schematic plan view of a semi-trailing arm 100 for a suspension in a vehicle. The semi-trailer 100 includes a suspension leg 101 in which a wheel bearing mount 103 is formed for the storage of a wheel. Furthermore, the semi-trailing arm comprises 100 a first spring leg 105-1 extending from the suspension leg 101 extends and which by a first flange plate 107-1 is completed. The first flange plate 107-1 has a fastening breakthrough 109-1 for non-positive attachment of the first flange plate 107-1 on a body component.

Furthermore, the semi-trailing arm comprises 100 a second spring leg 105-2 extending from the suspension leg 101 extends and which by a second flange plate 107-2 is completed. The second flange plate 107-2 has at least one further fastening breakthrough 109-2 for non-positive attachment of the second flange plate 107-2 on a body component.

Furthermore, the semi-trailing arm 100 a rod-shaped reinforcing element 301 on which the suspension leg 101 with the first spring leg 105-1 and / or the second spring leg 105-2 connects to a bending strength of the semi-trailing arm 100 to increase. The reinforcing element 301 runs in the handlebar level 111 from the second spring leg 105-2 to the first bending section 113 ,

On an outer surface 119 of the suspension leg 101 is a construction leather pickup 121 formed, with which a bodybuilder with the semi-trailing arm 100 is connectable. The construction leather pickup 121 is on a side facing away from the roadway of the semi-trailing arm 100 in the region of the first bending section 113 arranged. Furthermore, the Aufbaufederaufnahme 121 circular shaped.

The flange plates 107-1 . 107-2 each have a planar shaped support portion 117-1 . 117-2 on which can be placed on the body component to the flange plate 107-1 . 107-2 to connect with the bodywork component.

4 shows a schematic front view of a semi-trailing arm 100 for a suspension in a vehicle. The semi-trailer 100 includes a suspension leg 101 in which a wheel bearing mount 103 is formed for the storage of a wheel. Furthermore, the semi-trailing arm comprises 100 a first spring leg 105-1 extending from the suspension leg 101 extends and which by a first flange plate 107-1 is completed. The first flange plate 107-1 has a fastening breakthrough 109-1 for non-positive attachment of the first flange plate 107-1 on a body component.

Furthermore, the semi-trailing arm comprises 100 a second spring leg 105-2 extending from the suspension leg 101 extends and which by a second flange plate 107-2 is completed. The second flange plate 107-2 has at least one further fastening breakthrough 109-2 for non-positive attachment of the second flange plate 107-2 on a body component.

The wheel bearing receiver 103 is formed plate-like and is perpendicular to the suspension arm 101 aligned. On an outer surface 119 of the suspension leg 101 is a construction leather pickup 121 formed, with which a bodybuilder with the semi-trailing arm 100 is connectable. The construction leather pickup 121 is on a side facing away from the roadway of the semi-trailing arm 100 in the region of the first bending section 113 arranged. Furthermore, the Aufbaufederaufnahme forms 121 a survey on the outer surface 119 ,

The fastening breakthroughs 109-1 . 109-2 . 401-1 . 401-2 . 401-3 are each in one corner of the flange plates 107-1 . 107-2 arranged and have a circular cross-section.

LIST OF REFERENCE NUMBERS

100

trailing arm

101

suspension leg

103

Wheel recording

105-1

spring leg

105-2

spring leg

107-1

flange

107-2

flange

109-1

Fixing breakthrough

109-2

Fixing breakthrough

111

link plane

113

First bend section

115

Second bend section

117-1

bearing section

117-2

bearing section

119

outer surface

121

Construction spring mount

123

Radbremsenaufnahme

125

Draft

127

sensor recording

129-1

reinforcing rib

129-2

reinforcing rib

201

Damping element receptacle

301

reinforcing element

401-1

Fixing breakthrough

401-2

Fixing breakthrough

401-3

Fixing breakthrough

Claims (15)

Trailing arm (100) for a wheel suspension in a vehicle, with a suspension arm (101) in which a wheel bearing receptacle (103) for supporting a wheel is formed; a first spring leg (105-1) extending from the suspension arm (101) and closed by a first flange plate (107-1), the first flange plate (107-1) having at least one fixing aperture (109-1) for frictionally securing the first flange plate (107-1) to a body component, wherein the first spring leg (105-1) is formed for a leaf spring-like mounting of the wheel elastic than the suspension arm (101); and a second spring leg (105-2) extending from the suspension arm (101) and terminated by a second flange plate (107-2), the second flange plate (107-2) having at least one further attachment aperture (109-2) for frictionally securing the second flange plate (107-2) to a body component, wherein the second spring leg (105-2) is formed for a leaf spring-like mounting of the wheel elastic than the suspension arm (101); and where the semi-trailing arm (100) is formed in one piece from a fiber composite plastic. Semi-trailing arm Claim 1 wherein the first spring leg (105-1) and the second spring leg (105-2) are tapered with respect to the suspension arm (101) to obtain a higher elasticity than the suspension arm (101). A semi-trailing arm according to any one of the preceding claims, wherein the wheel suspension leg (101) has at least one material thickening, in particular a reinforcing rib, which increases the rigidity or torsional strength of the suspension arm (101). An oblique link (100) according to any one of the preceding claims, wherein the first spring leg (105-1) and the second spring leg (105-2) are each formed elastically to take over the function of a support spring. A semi-trailing arm (100) according to any one of the preceding claims, wherein the suspension arm (101) has a first curvature portion (113) which is adapted to mount the wheel bearing receptacle (103) in a link plane (111) at an angle to the flange plates (107-1, 107). 2). Semi-trailing arm (100) to Claim 5 in that the wheel suspension leg (101) has a second curved section (115) which is designed to offset the wheel bearing receptacle (103) relative to the link plane (111), in particular to arrange it in a spaced manner. Semi-trailing arm (100) to Claim 5 or 6 , wherein the fastening apertures is arranged parallel to the link plane (111). A semi-trailing arm (100) according to one of the preceding claims, wherein the flange plates (107-1, 107-2) each have a planar-shaped support section (117-1, 117-2) which can be placed on or against the body component or can be applied to the body component is to connect the flange plate (107-1, 107-2) with the body component. Semi-trailing arm (100) to Claim 8 , wherein between the body component and the respective support portion (117-1, 117-2), a vibration damping element, in particular a rubber or elastomeric plate for damping mechanical vibrations is arranged. Semi-trailing arm (100) Claim 9 wherein the trailing arm (100) has a triangular base, and wherein the wheel bearing receiver (103) and a respective flange plate (107-1, 107-2) form the corners of the triangular base. A semi-trailing arm (100) according to any one of the preceding claims, wherein the plastic composite material is fiber-reinforced and has a fiber layer with which fibers embedded in the fiber-reinforced plastic composite material are aligned in the direction of a center point of the trailing arm (100). A semi-trailing arm (100) according to any one of the preceding claims, comprising a rod-shaped reinforcing member (301) connecting the suspension arm (101) to the first spring leg (105-1) and / or the second spring leg (105-2) to provide flexural strength of the flexure Incline semi-trailing arm (100). A semi-trailing arm (100) according to any one of the preceding claims, wherein on a outer surface (119) of the suspension arm (101) a Aufbaufederaufnahme (121) and / or an Endabstandaufnahme are formed. A semi-trailing arm (100) according to any one of the preceding claims, wherein the trailing arm (100) is formed by a hollow profile body. Trailing link (100) according to one of the preceding claims, wherein the suspension arm (101) comprises a damping element receptacle (201), a wheel brake receptacle (123), a passage (125) for receiving a wheel bearing and / or a sensor receptacle (127), in particular for receiving a Anti-lock system sensor has.

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