Roll stabilizer

Abstract

The invention relates to a roll stabilizer (1) having two curved beams (15) extending parallel to each other in a vehicle longitudinal direction (x) and a torsion bar spring (2) extending between the two curved beams (15) in a vehicle transverse direction (y), the invention relates to a torsion bar spring (2), which is connected at both end sections (5, 6) thereof directly or indirectly in a rotationally fixed manner to a corresponding one of the two bending beams (15), a receptacle (12) for the torsion bar spring (2) and two bearing receptacles (13, 14) for bearings (9) being formed on each bending beam (15), the bending beams (15) being connected to the frame (10) by means of the bearings, characterized in that the torsion bar spring (2) is connected to the frame (10) by means of the bearings (9). The bent beam (15) is formed by a basic frame (16) which is formed by coiling at least one continuous fiber bundle (17) which is made of a continuous fiber-reinforced thermosetting plastic as a coiling material, the receiving part (12) and the bearing receiving part (13, 14) are formed by coiling parts (19, 20, 21), and the coiling parts (19, 20, 21) are arranged in the receiving part (12) and the bearing receiving part (13, 14). According to the invention, the receptacle (12) to be wound and / or the bearing receptacle (13, 14) to be wound have / has a non-circular outer contour, and the wound base frame (16) is embedded in a fiber-reinforced plastic block (18).

Description

Technical Field

[0001] The present invention relates to an anti-roll stabilizer according to the preamble of claim 1. Background Art

[0002] An anti-roll stabilizer of the type mentioned at the beginning is known from document WO 2018 / 095662 A1. The anti-roll stabilizer described in this document has two curved beams extending parallel to each other in the longitudinal direction of the vehicle and a torsion bar spring extending between the two curved beams in the transverse direction of the vehicle. The torsion bar spring is non-rotatably connected to the respective associated curved beam of the two curved beams directly or indirectly at its two ends, wherein receiving portions for the torsion bar spring and two bearing receiving portions for bearings are respectively formed on the curved beams, and the curved beams are connected to the vehicle frame through the bearings. Both the torsion bar spring and the curved beams are made of metal. The curved beams are solid and made of cast material. In view of electric vehicles and the improvement of efficiency, great efforts are being made to significantly reduce the mass of the vehicle. Especially for commercial vehicles, considering the high operating power, increasing the payload is of great value. In addition, efforts are usually made to make the weight distribution of each axle of the vehicle more uniform, whereby reducing the mass at the front axle is more important than reducing the mass at the rear axle. Summary of the Invention

[0003] Based on the above prior art, the object of the present invention is to improve an anti-roll stabilizer of the type mentioned at the beginning, which is characterized by a smaller mass and can be manufactured more cost-effectively.

[0004] From the perspective of equipment technology, this object is achieved by the preamble of claim 1 and its characterizing part. The subsequent dependent claims respectively reflect advantageous improvement schemes of the present invention.

[0005] According to the present invention, an anti-roll stabilizer is proposed, which has two curved beams extending parallel to each other in the longitudinal direction of the vehicle and a torsion bar spring extending between the two curved beams in the transverse direction of the vehicle. The torsion bar spring is non-rotatably connected to the respective associated curved beam of the two curved beams directly or indirectly at its two ends, wherein receiving portions for the torsion bar spring and two bearing receiving portions for bearings are respectively formed on the curved beams, and the curved beams are connected to the vehicle frame through the bearings. According to the present invention, each curved beam is composed of a basic frame, which is wound by at least one continuous fiber bundle, and the continuous fiber bundle is made of a continuous fiber-reinforced thermosetting plastic as the winding material, wherein the receiving portion and the bearing receiving portion are formed by winding portions, wherein the to-be-wound receiving portion and / or the to-be-wound bearing receiving portion has a non-circular outer contour, and the wound basic frame is embedded in a fiber-reinforced plastic block.

[0006] By embedding a basic frame composed of a coiled material reinforced with continuous fibers into a fiber-reinforced plastic block, the mass of the bending beam is reduced, and at the same time, more cost-effective manufacturing is achieved. A particular advantage here is that, compared with thermoplastics, a basic frame made of a coiled material of a continuous fiber-reinforced thermosetting plastic only undergoes very low moisture absorption and degradation due to thermal loading. The fiber-reinforced plastic block embedded in the basic frame assumes a support function. Through this support function, in particular, the respective coils of at least one continuous fiber bundle forming the basic frame are prevented from bending. By combining the coiled basic frame made of a continuous fiber-reinforced thermosetting plastic and the fiber-reinforced plastic block surrounding the basic frame, an improvement in the mechanical load capacity of the corresponding bending beam is achieved. Thus, a combination of different fiber-reinforced plastics can be used to replace the metal materials used for bending beams in the prior art, which combines the specific advantages of these plastics. In addition to weight reduction and cost advantages, the bending beam design according to the invention also has advantages in terms of energy requirements during manufacturing. In particular, prepregs or towpregs (pre-impregnated continuous fiber bundles with a thermosetting plastic matrix) are used as the coiled material of the continuous fiber reinforcement.

[0007] Preferably, the plastic block can be short fiber-reinforced, in particular by glass fibers. The coiled material and the plastic block can be reinforced with the same fiber material, but preferably with different fiber lengths. Alternatively, at least one continuous fiber bundle and the plastic block can contain reinforcing fibers made of different materials. For example, at least one continuous fiber bundle can contain carbon fibers, while the plastic block is reinforced with glass fibers.

[0008] In particular, the receiving portion and one of the bearing receiving portions can be arranged in the first end region of the bending beam, and the other bearing receiving portion can be arranged in the opposite second end region of the bending beam. The bearing receiving portion arranged in the first end region of the bending beam facing the torsion bar spring is used to support the roll stabilizer. Through the bearing receiving portion arranged in the second end region, the bending beam can be respectively mounted on the longitudinal beam of the vehicle frame through brackets.

[0009] Preferably, strip-shaped extended winding layers of coiled material are respectively arranged between the receiving part of the bending beam and the corresponding bearing receiving part and between the bearing receiving parts of the bending beam. Thus, connections can be established between the receiving part and the bearing receiving part in the first end region of the bending beam, between the receiving part and the bearing receiving part in the second end region, and between the bearing receiving part in the first end region and the bearing receiving part in the second end region by means of parallel extended wire bundles of at least one continuous fiber bundle. For this purpose, at least one continuous fiber bundle is wound in a constant winding direction, and it is wound around the receiving part and the corresponding bearing receiving part as a strip-shaped extended winding layer. The winding direction can be clockwise or counterclockwise here. Here, the receiving part, the corresponding bearing receiving part, and the two bearing receiving parts respectively form a pair of commutation points for at least one continuous fiber bundle.

[0010] The contour of the strip-shaped extended winding layer between the bearing receiving part in the first end region and the bearing receiving part in the second end region of the bending beam can be adjusted according to the installation space by means of at least one commutation element, and the commutation element is used during the winding process to deflect at least one continuous fiber bundle partially from the straight line generated by the winding tension.

[0011] In addition, crossed winding layers of coiled material are respectively arranged between the bearing receiving part in the second end region of the bending beam and the corresponding opposing receiving part or bearing receiving part in the first end region and between the receiving part and the bearing receiving part in the first end region. This thus creates connections between the receiving part or bearing receiving part in the first end region of the bending beam and the bearing receiving part in the second end region and between the receiving part and the bearing receiving part by means of diagonal or crossed wire bundles of at least one continuous fiber bundle in the region between the receiving part and / or the bearing receiving part. For this purpose, at least one continuous fiber bundle is wound in a varying winding direction. Here, the receiving part or bearing receiving part in the first end region of the bending beam and the bearing receiving part in the second end region of the bending beam respectively form a pair of commutation points for at least one continuous fiber bundle, and this continuous fiber bundle forms a basic framework.

[0012] In addition, the receiving part and the bearing receiving part can be completely wound by a plurality of winding layers of coiled material along the circumferential direction respectively. By completely surrounding the receiving part or bearing receiving part in the first end region of the bending beam with at least one continuous fiber bundle in the circumferential direction, a favorable embodiment of the structure loaded by tension and compression is obtained in the bending beam. Another advantage is the reduction of wear of the fiber-reinforced plastic block. The underlying or embedded continuous fiber bundle can withstand higher mechanical loads without wear.

[0013] A favorable embodiment for bearing the bending load of the bending beam is obtained by combining strip-shaped extended and crossed wire bundles of at least one continuous fiber bundle.

[0014] It is preferably proposed that, in order to limit the continuous fiber reinforcement to three placement sites of the curved beam, the receiving part and the two bearing receiving parts, all three types of the coiled layers are combined with each other. Here, first, the coiled layer extending diagonally is coiled, and then the coiled layer extending in a strip shape is coiled.

[0015] It is particularly proposed that the basic frame is completely hardened before being embedded in a plastic block, especially a thermoplastic one. Thereby, displacement of the coiled parts of the continuous fiber bundles during the embedding process can be prevented.

[0016] In particular, a gap is left between the strip-shaped extending and / or intersecting coiled layers of the basic frame, which is filled by a plastic block, especially a thermoplastic one, when the basic frame is embedded. The advantage of dispensing with the solid design of the basic frame is that the generally more costly continuous fiber bundles are only used in the range required to carry the load in the fiber direction. Additionally importantly, a gap is formed between the diagonally and strip-shaped extending coiled layers of at least one continuous fiber bundle. The placement of the coiled layers is controlled such that, in addition, gaps are formed within the intersecting and strip-shaped extending coiled layers into which the plastic block can enter. The gaps within the intersecting coiled layers may be formed, for example, due to varying coiling directions. By alternately coiling the strip-shaped extending and intersecting coiled layers, a distance corresponding to the maximum value of the fiber bundle thickness can be provided between the gaps. Therefore, the intersecting and strip-shaped extending coiled layers form a larger surface area compared to the compact coiled parts. The gaps between and / or within the intersecting and strip-shaped extending coiled layers enable an improved form fit during embedding into the plastic block. With the larger surface area, the force fit when placing at least one fiber bundle on the plastic block is improved.

[0017] Preferably, the receiving part and the bearing receiving part of the profile member can particularly include a bushing, a sleeve, and / or a collar. This can simplify the complete coiling of the receiving part and the bearing receiving part forming the curved beam when coiling the basic frame. Another advantage of using the profile member is that the bearing can be adhesively bonded into the profile member of the bearing receiving part. This also holds for the profile member of the receiving part into which the torsional polygon profile of the torsion bar spring can be adhesively bonded. Compared with the plastic block into which the formed receiving part and the formed bearing receiving part are embedded, when not using the profile member, the adhesion of the bearing or the torsion bar spring is more difficult due to the lower surface energy. Another advantage of using the profile member is reflected in the embedding process, especially by injection molding, because the profile member can serve as a positioning aid for the coiled basic frame. In addition, the profile member can also provide an additional protective effect against displacement or damage of the coiled parts of the continuous fiber bundles or the basic frame.

[0018] Here, at least one of the profile members may have an undercut. Thereby, when the plastic block is embedded, the undercut is at least partially filled, so that a form-fitting arrangement is formed between the profile member and the plastic block.

[0019] According to a preferred refinement, the profile member of the at least receiving portion may have at least one partially flattened outer side. This advantageous embodiment enables the occurring bending loads to be distributed over an enlarged contact surface, such that the bending loads are borne by the enlarged pressing surface and introduced into the bending beam structure made of a continuously fiber-reinforced thermosetting plastic and a fiber-reinforced plastic material. In particular, the polygonal design of at least one of the profile members is advantageous. Preferably, all profile members have a polygonal outer contour on which at least one continuous fiber bundle is placed. The polygonal design can better withstand the torque transmitted from the torsion bar spring to the bending beam. In addition, the polygonal design enables the compressive forces to be derived in two directions. The compressive forces applied to the polygonal profile member are divided into two component forces according to the inclination of the pressing surface.

[0020] In particular, the torsion bar spring and / or the bearing may be connected to the corresponding profile member in a material-fit manner. An advantage that arises during the assembly of the torsion bar spring is that when the torsion bar spring is pressed into the profile member of the receiving portion of the corresponding bending beam, it can withstand the stress generated due to the deformation of the torsional polygonal profile on the end section of the torsion bar spring. The corresponding profile member is embedded in the bending beam without stress.

[0021] Alternatively, the torsion bar spring and / or the bearing may be connected to the corresponding profile member by freezing or pressing.

[0022] The profile member of the receiving portion and the bearing receiving portion that is completely circumferentially wound by at least one continuous fiber bundle enables the torsion bar spring and / or the bearing to be arranged by means of freezing, pressing or bonding, because at least one continuous fiber bundle having a matrix of a thermosetting plastic has both a high surface energy for bonding and the ability to withstand very high circumferential stresses.

[0023] In particular, the receiving portion and the bearing receiving portion of the bending beam may have profile members of different heights from each other in the transverse direction. The bending beam has a three-dimensional structure.

[0024] According to a preferred refinement, the coiled basic frame may be partially coiled by a spiral winding portion extending in the longitudinal direction of the bending beam. The subsequent component contour can be influenced by means of the spiral winding portion. For example, if necessary due to installation space reasons, a constriction can be generated by means of the spiral winding portion. In addition, the spiral winding portion can also stabilize the basic frame during the subsequent embedding into the plastic block.

[0025] Preferably, the coiled basic frame can be embedded in a short fiber injection molding material or an SMC material (Sheet Molding Compound Material). BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is not limited to the combinations of features given in the independent claims or their dependent claims. In addition, the individual features can also be combined with each other, as long as these features are from the claims, the following description of the preferred embodiments of the present invention, or directly derived from the drawings. The reference to the drawings in the claims by using reference signs is not intended to limit the scope of the claims.

[0027] The drawings show an advantageous embodiment of the present invention, which will be explained below. The drawings show:

[0028] Figure 1 a perspective view of an anti-roll stabilizer for a cab support device according to the prior art;

[0029] Figure 2 a perspective view schematically showing a bending beam according to the present invention;

[0030] Figure 3 schematically showing according to Figure 2 a partial cross-sectional view of the bending beam;

[0031] Figure 4 a basic frame of the bending beam according to the present invention schematically shown; and

[0032] Figure 5 a view of a bending beam having an oval profile member according to the present invention schematically shown. DETAILED DESCRIPTION

[0033] Figure 1Shows a roll stabilizer 1 for a cab support device according to the prior art. The roll stabilizer 1 has a torsion bar spring 2, at both ends of which are respectively arranged bending beams 3 by means of non-circular crimping. The torsion bar spring 2 has a polygonal first end section 5 and a polygonal second end section 6, which are adapted to receive a plug 4 constructed with a polygonal profile, also known as an equal thickness part (Gleichdick). The torsion bar spring 2 can be constructed as a torsion tube, for example. The bending beam 3 has a first end region 7 and a second end region 8. The bending beam 3 is connected to a frame 10 and a cab 11 of a motor vehicle, which are only schematically shown, in the second end region 8 by means of bearings 9, here and preferably rubber bearings. In the first end region 7 of each bending beam 3, there are arranged a receiving part 12 and a bearing receiving part 13, and in the second end region 8 of the bending beam 3, there is arranged another bearing receiving part 14 for the bearing 9. The solid-designed bending beam 3 is made of a casting material, made of aluminum alloy, cast steel or ductile iron. The term "receiving part 12" describes the geometric structure of the bending beam 3, which is used to receive and fasten the polygonal first end section 5 or the polygonal second end section 6 of the torsion bar spring 2. Correspondingly, the terms "bearing receiving parts 13, 14" describe the geometric structure of the bending beam 3, which is used to receive and fasten the corresponding bearings 9, regardless of their design.

[0034] In the following description, for reasons of simplification and for the purpose of explaining the components, the same reference numerals are used for the same or functionally identical parts or elements where meaningful.

[0035] Figure 2 The illustration in shows a perspective view of a bending beam 15 according to the invention, which is used to receive the torsion bar spring 2 and the bearing 9, here preferably a rubber bearing. In Figure 3 is schematically shown a Figure 2 partial cross-sectional view of the bending beam 15 according to. The corresponding bending beam 15 consists of a coiled basic frame 16. The basic frame 16 is made of at least one continuous fiber bundle 17, which is made of a thermosetting plastic reinforced with continuous fibers as the coiling material. The receiving part 12 and the bearing receiving parts 13, 14 are formed by different coiling layers 19, 20, 21 of at least one continuous fiber bundle 17. The basic frame 16 has a three-dimensional coiling structure. The receiving part 12 and the bearing receiving parts 13, 14 of the bending beam 1 have different height profiles in the transverse direction y. The coiled basic frame 16 is embedded in a thermoplastic, fiber-reinforced, especially short fiber-reinforced plastic block 18. The plastic block 18 surrounds the exposed area of the basic frame 16 or the different coiling layers 19, 20, 21 of at least one continuous fiber bundle 17.

[0036] From Figure 2 and Figure 3It can be seen that at least the receiving part 12 to be coiled has a non-circular outer contour 22. The non-circular outer contour 22 can be configured as a polygonal contour, for example a triangular contour. The corners of the polygonal outer contour 22 are preferably rounded here. In addition, the sides of the polygonal outer contour 22 can, for example, extend in a curved manner. Alternatively, the non-circular outer contour 22 can also be formed by an elliptical contour.

[0037] In Figure 3 it, the coiling layers 19 and 20 are shown partially visible, wherein the coiling layer 20 is arranged in a strip-shaped extension between the receiving part 12 and the corresponding bearing receiving parts 13, 14 respectively. Thus, between the receiving part 12 and the bearing receiving part 13 in the first end region 7 of the bending beam 15, between the bearing receiving part 13 in the first end region 7 and the bearing receiving part 14 in the second end region 8, and between the receiving part 12 and the bearing receiving part 14 in the second end region 8, a connection can be established by a strip-shaped extending wire harness of at least one continuous fiber bundle 17. In order to form the strip-shaped extending coiling layer 20, at least one continuous fiber bundle 17 is coiled in a coiling direction that remains unchanged, for example, only clockwise or only counterclockwise. Here, the receiving part 12 and the corresponding bearing receiving parts 13, 14 and the two bearing receiving parts 13, 14 of the bending beam 15 respectively form a pair of commutation points for at least one continuous fiber bundle 17. A plurality of continuous fiber bundles 17 with opposite coiling directions can also form the strip-shaped extending coiling layer 20.

[0038] In addition, cross coiling layers 19 of coiling material are respectively arranged between the bearing receiving part 14 in the second end region 8 of the bending beam 15 and the opposing receiving part 12 or bearing receiving part 13 in the first end region 7. This thus produces a connection between the receiving part 12 or bearing receiving part 13 in the first end region 7 of the bending beam 15 and the bearing receiving part 14 in the second end region 8 and between the receiving part 12 and the bearing receiving part 34 by a diagonal or cross wire harness of at least one continuous fiber bundle 17. For this purpose, at least one continuous fiber bundle 17 is coiled with a varying coiling direction. Here, the receiving part 12 or bearing receiving part 13 in the first end region 7 of the bending beam 15 and the bearing receiving part 14 in the second end region 8 of the bending beam 15 respectively form a pair of commutation points for at least one continuous fiber bundle 17.

[0039] A material accumulation part may be formed in the crossing area of the cross coiling layer 19.

[0040] Furthermore, from Figure 3It can be seen that the receiving part 12 and the bearing receiving parts 13, 14 are completely wound by a plurality of winding layers 21 in the circumferential direction. By completely surrounding the receiving part 12 or the corresponding bearing receiving parts 13, 14 in the circumferential direction with the winding layers 21 of at least one continuous fiber bundle 17, a favorable embodiment of a structure loaded by tension and compression is obtained in the bending beam 15. Another advantage is the reduction of wear of the fiber-reinforced plastic block 18. The continuous fiber bundles 17 located below or embedded can withstand higher mechanical loads without wear.

[0041] Figure 4 The basic frame 16 of the bending beam 15 according to the invention is schematically shown in a top view. The receiving part 12 and the bearing receiving parts 13, 14 can comprise closed profile members 23, 24, which are in particular designed as bushings, sleeves and / or collars. The profile members 23, 24 are preferably made of metal. The profile members 23, 24 can be used to form the receiving part 12 and the bearing receiving parts 13, 14 instead of a core or a similar structure during the winding process of the basic frame 16. At least the profile member 23 has a non-circular circumferential profile. The profile member 23 of the receiving part 12 has at least one partially flattened outer side 25 here. The non-circular circumferential profile can correspond to the non-circular outer profile 22 of the receiving part 12 here. In particular, the profile member 23 can have a circumferential profile of a Reuleaux triangle.

[0042] For example, Figure 4 it is shown that a torque 26 represented by an arrow is introduced into the bending beam 15. The torque 26 is introduced into the bending beam 15 by the torsion bar spring 2. The resulting forces introduced into the winding layers 19, 20 are represented by arrows 27 in the case of compressive forces and by arrows 28 in the case of tensile forces. The advantage brought about by the non-circular circumferential profile of the profile member 23 or the non-circular outer profile 22 of the receiving part 12 is that the forces generated by the torque are divided into a compressive force 27 and a tensile force 28, which are introduced into the winding layers 19, 20 at a certain angle respectively. This is achieved by a combination of crossed and strip-shaped extending winding layers 19, 20. By the winding layer 21 that completely surrounds the receiving part 12 and the bearing receiving parts 13, 14, more precisely the profile members 23, 24, a favorable embodiment of the structure of the bending beam 15 loaded by tension-compression is obtained.

[0043] In particular, it is proposed that the basic frame 16 be completely hardened before being embedded in a plastic block 18 reinforced with short fibers, especially a thermoplastic. Thereby, the fibers in the continuous fiber bundle 17 can be prevented from shifting during the embedding process.

[0044] In particular, it is proposed that a gap 29 is left between the strip-shaped extending and / or intersecting coiled layers 19, 20 of the basic frame 16, which gap is filled by the plastic block 18 when the basic frame 16 is embedded. The advantage of dispensing with the solid design of the basic frame 16 by the compacting of the coiled layers 19, 20 in particular is that the generally more costly continuous fiber bundles 17 need only be used to the extent required for the loads in the direction of the load-bearing fibers. Importantly, gaps 29 of different sizes are formed between the intersecting coiled layer 19 and the strip-shaped extending coiled layer 20 of at least one continuous fiber bundle. After embedding, these gaps 29 are filled by the plastic blocks 18. Filling the gaps 29 inside and between the coiled layers 19, 20 helps to improve the mechanical stability. The embedding in the material accumulation formed in the intersecting area of the intersecting coiled layer 19 additionally helps to improve the mechanical stability.

[0045] The placement of the coiled layers 19, 20 is controlled such that, in addition, gaps 29 are formed within the intersecting and strip-shaped extending coiled layers 19, 20 into which the plastic blocks 18 can enter. The gaps 19 in the intersecting coiled layer 19 may be formed, for example, due to the changing coiling direction during its placement. In particular, in the intersecting area of the intersecting coiled layer 19, the coiled layers may have a distance from each other, which distance corresponds at most to the fiber bundle thickness. By alternately coiling the intersecting and strip-shaped extending coiled layers 19, 20, a distance can be provided between these gaps 29, which distance corresponds at most to the fiber bundle thickness.

[0046] Thus, a larger surface area is formed between and inside the intersecting and strip-shaped extending coiled layers 19, 20 compared to the compact coiling. The gaps 29 improve the form fit when the basic frame 16 is embedded in the plastic block 18. The force fit for arranging at least one continuous fiber bundle 17 on the plastic block 18 is improved by the larger surface area.

[0047] Figure 5 The illustration in shows a schematic view of a bending beam 15 according to the invention, which bending beam has profile members 23, 24 of a substantially elliptical design. In order to improve the load introduction in the areas of the receiving part 12 and the bearing receiving parts 13, 14 and to improve the resistance to locally acting multiaxial stresses, the profile members 23, 24 made of metal are of an elliptical design. These profile members 23, 24 of an elliptical design can likewise be completely coiled by the coiled layer 21 of continuous fiber bundles 17 to withstand the high circumferential forces generated when pressing the bearing 9. The outer side 25 of the profile members 23, 24 enlarged due to the elliptical shape is characterized in that the occurring bending loads are better distributed over a wide area. Thus, the bending loads can be borne by the enlarged area and transferred from the basic frame 16 formed by at least one continuous fiber bundle 17 and embedded in the short fiber-reinforced plastic block 18 into the overall structure of the bending beam 15.

[0048] The profile members 23, 24 are designed in particular as bushings, sleeves and / or collars. This can simplify the complete winding of the receiving part 12 of the bending beam 15 and the bearing receiving parts 13, 14 when winding the basic frame 16. Another advantage of using the profile members 23, 24 is that the bearing 9 can be adhesively bonded into the profile member 24 of the bearing receiving parts 13, 14. This also applies to the profile member 23 of the receiving part 12, into which the torsional polygon profile of the torsion bar spring 2 can be adhesively bonded.

[0049] Here, at least one of the profile members 23, 24 can have an undercut. Thereby, when the plastic block 18 is inserted, the undercut is at least partially filled, so that a form-fitting arrangement is formed between the respective profile member 23, 24 and the surrounding plastic block 18.

[0050] The receiving part 12 and the bearing receiving parts 13, 14 completely wound by at least one continuous fiber bundle 17 also enable the arrangement to be achieved by freezing, pressing or bonding, because the continuous fiber reinforcement with a thermosetting plastic matrix of the continuous fiber bundle 17 has both a high surface energy for bonding and the ability to withstand very high circumferential stresses.

[0051] List of reference numerals:

[0052] 1 Roll stabilizer

[0053] 2 Torsion bar spring

[0054] 3 Bending beam

[0055] 4 Plug

[0056] 5 First end section

[0057] 6 Second end section

[0058] 7 First end region

[0059] 8 Second end region

[0060] 9 Bearing

[0061] 10 Vehicle frame

[0062] 11 Cab

[0063] 12 Receiving part

[0064] 13 Bearing receiving part

[0065] 14 Bearing receiving part

[0066] 15 Bending beam

[0067] 16 Basic frame

[0068] 17 Continuous fiber bundle

[0069] 18 Plastic block

[0070] 19 Coiling layer

[0071] 20 Coiling layer

[0072] 21 Coiling layer

[0073] 22 Outer contour

[0074] 23 Profile member

[0075] 24 Profile member

[0076] 25 Outer side

[0077] 26 Torque

[0078] 27 Compressive force

[0079] 28 Tensile force

[0080] 29 Gap.

Claims

1. Roll stabilizer (1) having two curved beams (15) extending parallel to one another in the longitudinal direction (x) of the vehicle and a torsion bar spring (2) extending between the two curved beams (15) in the transverse direction (y) of the vehicle, the torsion bar spring being non-rotatably connected directly or indirectly at its two end sections (5, 6) to the respective curved beam of the two curved beams (15), wherein, On the bent beam (15), a receiving portion (12) for the torsion bar spring (2) and two bearing receiving portions (13, 14) for the bearing (9) are respectively constructed. The bent beam (15) is connected to the vehicle frame (10) by means of the bearings. It is characterized in that the bent beam (15) is composed of a basic frame (16), and the basic frame is wound by at least one continuous fiber bundle (17). The basic frame is made of a continuous fiber-reinforced thermosetting plastic as the winding material. Among them, the receiving portion (12) and the bearing receiving portions (13, 14) are formed by winding portions (19, 20, 21). Among them, the receiving portion (12) to be wound and / or the bearing receiving portions (13, 14) to be wound have a non-circular outer contour. Among them, the wound basic frame (16) is embedded in a fiber-reinforced plastic block (18).

2. The roll stabilizer (1) according to claim 1, characterized in that, The receiving portion (12) and one of the bearing receiving portions (13) are arranged in the first end region (7) of the bent beam (15), and the other bearing receiving portion (14) is arranged in the opposite second end region (8) of the bent beam (15).

3. The roll stabilizer (1) according to claim 1 or 2, characterized in that Between the receiving portion (12) of the bent beam (15) and the corresponding bearing receiving portions (13, 14) and between the bearing receiving portions (13, 14) of the bent beam (15), respectively arranged are intertwined and extended winding layers (20) of the winding material.

4. The roll stabilizer (1) according to claim 2 or 3, characterized in that, Between the bearing receiving portion (14) in the second end region (8) of the bent beam (15) and the corresponding and opposed receiving portion (12) or bearing receiving portion (13) in the first end region (7) and between the receiving portion (12) and the bearing receiving portion (13) in the first end region (7), respectively arranged are crossed winding layers (19) of the winding material.

5. The roll stabilizer (1) according to any one of the preceding claims, characterized in that The receiving portion (12) and the bearing receiving portions (13, 14) are completely wound by a plurality of winding layers (21) respectively along the circumferential direction.

6. The roll stabilizer (1) according to any one of the preceding claims, characterized in that, The basic frame (16) is completely hardened before being embedded in the plastic block (18).

7. The roll stabilizer (1) according to any one of the preceding claims, characterized in that, Gaps (29) are left between the intertwined and / or crossed winding layers (19, 20) of the basic frame (16), and the plastic block (18) fills the gaps.

8. The roll stabilizer (1) according to any one of the preceding claims, characterized in that, The profile members (23, 24) surrounding the receiving portion (12) and the bearing receiving portions (13, 14) particularly include bushings, sleeves, and / or collars.

9. The roll stabilizer (1) according to claim 8, characterized in that, At least one of the profile members (23, 24) has an undercut.

10. The roll stabilizer (1) according to claim 8 or 9, characterized in that, At least the profile member (23, 24) of the receiving portion (12) has at least one partially flattened outer side (25).

11. The roll stabilizer (1) according to any one of claims 8 to 10, characterized in that, The torsion bar spring (2) and / or the bearing (9) are connected to the corresponding profile members (23, 24) in a material-fit manner.

12. The roll stabilizer (1) according to any one of claims 8 to 10, characterized in that, The torsion bar spring (2) and / or the bearing (9) are connected to the corresponding profile members (23, 24) by freezing or pressing.

13. The roll stabilizer (1) according to any one of the preceding claims, characterized in that, The receiving portion (12) and the bearing receiving portions (13, 14) of the bent beam (15) have different height profiles from each other in the transverse direction (y).

14. The roll stabilizer (1) according to any one of the preceding claims, characterized in that, The coiled basic frame (16) is partially coiled by a helical coiling portion extending in the longitudinal direction (x) of the curved beam (15).

15. The roll stabilizer (1) according to any one of the preceding claims, characterized in that, The coiled basic frame (16) is embedded in a short fiber injection molding material or an SMC material (sheet molding compound).

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