Fastening member and damper

Abstract

The invention relates to a fastening component for fastening a wheel carrier to a damper tube of a damper, comprising a U-shaped retaining structure consisting of two leg sections and a base section located between the two leg sections. According to the invention, the leg section is provided with a pair of perforations aligned with each other, said perforations forming at least one fastening point for fastening the fastening member to the wheel carrier via the retaining structure. Furthermore, the fastening component is fastened to the damper tube on the rear side of the retaining structure via a welded connection. In order to reduce the production costs, the fastening member is divided into two halves along an interface extending through the base section of the retaining structure, which lie against one another at contact surfaces facing one another to form the fastening member.

Description

Technical Field

[0001] The present invention relates to a fixing member for fixing a wheel carrier to a damper tube of a damper, in particular a damper of a spring strut independent suspension or a shock absorber strut independent suspension, and the fixing member includes a U-shaped holding structure formed by two leg sections and a base section located between the two leg sections. Wherein, the leg sections are provided with through holes that are pairwise aligned with each other, and these through holes form at least one fixing point for fixing the fixing member to the wheel carrier via the holding structure, and wherein the fixing member is fixed to the damper tube via a welded connection on the back side of the holding structure. The present invention also relates to a damper having the aforementioned fixing member. Background Art

[0002] In the chassis of a motor vehicle, shock absorber strut independent suspensions and spring strut independent suspensions are known. In the latter case, it is usually also referred to as a MacPherson suspension (McPherson - ). In such an independent suspension, the damper tube of the damper is non-rotatably connected to the wheel carrier, and the piston rod of the damper is rotatably fixed to the vehicle body. Generally, the non-rotatable connection between the damper tube and the wheel carrier is achieved by a fixing member, which is usually welded to the damper tube and the wheel carrier is fixed thereto.

[0003] Such a fixing member is from Document JP 2002130360 A. Wherein, on the one hand, the fixing member is fixed to the damper tube of the damper via a welded connection, and on the other hand, it is connected to the wheel carrier in order to ultimately fix the wheel carrier to the damper tube of the damper. In addition to the support member, at which the fixing member is placed on the damper tube and welded to the damper tube in the assembled state, in a variant of Document JP 2002130360A, the fixing member further has a U-shaped holding structure, which is connected to the support member and forms a fixing point for fixing the wheel carrier at the through holes. The U-shape of the holding structure is formed by two leg sections and a base section located between the leg sections, wherein the through holes are pairwise aligned at the leg sections. Summary of the Invention

[0004] Based on the above prior art, the object of the present invention is to provide a fixing member via which a wheel carrier can be fixed to a damper tube of a damper, wherein the fixing member is characterized by as low a manufacturing cost as possible.

[0005] This object is achieved by combining the preamble of claim 1 with its characterizing part. The dependent claims following claim 1 respectively reflect advantageous improvement solutions of the present invention. In addition, the subject matter of claim 14 is a shock absorber, and according to the present invention, the fixing member is fixed to the shock absorber tube of the shock absorber via a welded connection portion.

[0006] According to the present invention, a fixing member for fixing a wheel carrier at a shock absorber tube of a shock absorber (in particular, a shock absorber of an independent spring suspension or an independent shock absorber strut suspension) includes a U-shaped holding structure formed by two leg sections and a base section located between the leg sections. The leg sections are provided with through portions that are pairwise aligned with each other, and at these through portions, the fixing member can be fixed to the wheel carrier via the holding structure. In addition, the fixing member is fixed to the shock absorber tube via a welded connection portion on the back side of the holding structure.

[0007] Therefore, the fixing member according to the present invention forms a connection between the wheel carrier and the shock absorber tube of the shock absorber, wherein the fixing member is fixed to the shock absorber tube of the shock absorber via a welded connection portion for this purpose, and the wheel carrier is fixed to the fixing member at the through portions of the holding structure of the fixing member.

[0008] The holding structure of the fixing member is U-shaped, that is, has a U-shaped configuration. Here, this configuration is defined by two leg sections and an intermediate base section, wherein the leg sections of the holding structure particularly extend at least substantially parallel to each other, and the base section extends between the leg sections. Each leg section of the holding structure preferably extends at least substantially straight, wherein the intermediate base section particularly extends convexly, that is, curved outwardly, between the leg sections.

[0009] The through portions for fixing the wheel carrier are located at the leg sections of the holding structure, wherein in particular each two aligned through portions form each fixing point for the wheel carrier. Particularly preferably, the through portions are all through holes here, and the aligned through holes are used here to guide through fixing members, such as respectively guiding through screws or respectively guiding through bolts, to form a form-fitting connection with the wheel carrier placed between the leg sections. Very particularly preferably, exactly two fixing points for the wheel carrier are formed by the holding structure here, so that the leg sections of the holding structure are provided with a total of four through portions, and these through portions are pairwise aligned with each other.

[0010] Between adjacent through - portions, each leg section is additionally provided, in particular, with a projection which projects in each case in the direction of the outer side of the U - shaped holding structure relative to the surrounding area of each leg section, and increases the rigidity of each leg section of the holding structure. Alternatively or in addition hereto, each leg section preferably has a greater extent in the depth direction of the U - shaped holding structure (i.e., in the direction from the back side of the holding structure to the front side of the holding structure) at the height of the respective through - portion compared to the area not covered by the respective through - portion. Thereby, the rigidity of each leg in the area of the respective through - portion is increased, and thus the corresponding fixing strength of the wheel carrier is increased. The back side of the holding structure is here the side facing the damper tube of the damper when the fixing member is in the fixed state in the depth direction of the U - shaped holding structure, and the front side of the holding structure is the side opposite to the back side and facing away from the damper tube when the fixing member is in the fixed state. If the holding structure forms exactly two fixing points for the wheel carrier, the leg sections each have their maximum extent in the depth direction, in particular, at the height of the through - portion respectively adjacent to the base section.

[0011] The base section may have a notch near the respective transition portion leading into the respective leg section, and the base section projects in the direction of the inner side of the U - shaped holding structure by means of this notch. This enables an increase in the rigidity of the holding structure in the area of the respective transition portion.

[0012] A welded joint is formed between the fixing member and the damper tube on the back side of the holding structure. For this purpose, the fixing member preferably has at least one joint surface on the back side of the holding structure, at which a weld seam can be formed between the fixing member and the damper tube.

[0013] The present invention now includes the following technical teaching, namely that the fixing member is divided into two halves along a dividing plane extending through the base section of the holding structure, and these two halves are abutted against each other at the contact surfaces facing each other to form the fixing member. In other words, the fixing member is not integrally formed, but consists of two halves which together form the fixing member. For this purpose, the two halves have contact surfaces which face each other at these two halves. The fixing member is here divided into two halves along the dividing plane which extends through the base section of the holding structure in the fixing member.

[0014] This design of the fixing member has the following advantages here, namely that by dividing the fixing member into two halves, a lower manufacturing cost of the fixing member can be achieved, because the two separate halves of the fixing member can be manufactured more easily. By abutting the two halves against each other, at the latest when the fixing member is fixed to the damper tube, the fixing member can have the desired U - shaped form of the holding structure without problems. Here, the U - shaped form of the holding structure can also enable a reliable fixing of the wheel carrier.

[0015] The extension of the fixing member passes through the interface of the base section of the retaining structure and extends in particular in the depth direction of the retaining structure, i.e., in the direction extending between the dorsal side and the front side of the retaining structure.

[0016] According to an embodiment of the present invention, the contact surface at least partially forms a bonding surface, and the two halves that are in contact with each other are welded to each other at this bonding surface. Thus, the two halves forming the fixing member are welded to each other at least at their contact sections formed via the contact surface after they are in contact with each other. As a result, the two halves are then reliably held relative to each other in the position forming the fixing member. Within the scope of the present invention, the bonding surface can be formed over the entire length of the contact surface or only over a partial length of the contact surface.

[0017] According to a feasible design of the present invention, the contact surface is at least partially located at the base section halves, and each of the base section halves belongs to one of the halves, and together form the base section of the retaining structure when the halves are in contact with each other. Therefore, the contact surface is at least partially formed by the section halves, and at the contact surface, the two halves of the fixing member are brought into contact with each other to form the fixing member, and the section halves then form the base section of the retaining structure when in contact.

[0018] When combining the above two variants, the bonding surface is at least partially constructed at the base section halves. Since the bonding surface for forming the welded joint between the halves is formed at least over a partial length of the contact surface formed by the base section halves, the welding of the two halves is at least partially carried out at the base section halves. Very particularly preferably, the contact surface formed by the base section is used as the bonding surface over its entire length, at which the two halves of the fixing member are welded to each other after being in contact with each other.

[0019] Another embodiment of the present invention is that the base section is provided with a recess, which is defined between the base section halves, where the base section halves are respectively arranged at separate halves, and together form the base section of the retaining structure when the halves are in contact with each other. The advantage is that since the base section has a certain flexibility due to the recess, when fixing the wheel bracket, the stress in the fixing member can be reduced in a simple manner and method. In particular, the recess tapers gradually in the direction from the front side of the retaining structure towards the dorsal side of the retaining structure, and this gradually tapering structure is further preferably constructed as a wedge shape here.

[0020] According to another feasible design of the present invention, a support member is provided on the dorsal side of the holding structure, at which a welded connection can be formed between the fixing member and the shock absorber tube, and the holding structure is prominently configured on the support member. Here, the side of the support member facing away from the holding structure is a corresponding structure of the outer contour of the shock absorber tube in the abutting region. Thus, the fixing member for fixing to the shock absorber tube can be placed on the shock absorber tube with a larger contact surface, and can also be welded to the shock absorber tube in a reliable manner and method.

[0021] In an improved version of the above-mentioned feasible design, the support member is U-shaped and has legs and an intermediate section connecting these legs. Here, one of the leg sections of the holding structure is respectively configured on each leg, and the base section of the holding structure is configured on the intermediate section, and the interface additionally extends through the intermediate section of the support member. Thus, an overall suitable and compact structure of the fixing member can be advantageously achieved, and the fixing member is also divided into two halves in a suitable manner along the interface to reduce manufacturing costs.

[0022] Further preferably, the contact surface is at least partially located at the intermediate section halves, which are respectively arranged at the corresponding halves, and when the halves abut against each other, they jointly form the intermediate section of the support member. The abutment of these two halves thus also takes place at the support member of the fixing member, thereby increasing the contact area between the halves of the fixing member. This variant can be combined with the following feasible design of the present invention, that is, the contact surface at least partially forms a joint surface for welding the abutting halves together. Here, the joint surface can also be realized at least on a partial length of the contact surface formed by the intermediate section halves. Alternatively, a joint surface can also be specifically left in the area of the contact surface formed by the intermediate section halves in order to prevent the weld formed between the halves from overlapping the weld formed between the fixing member and the shock absorber tube.

[0023] As an alternative or supplement to the above variant, an obtuse angle is formed between the base section and the intermediate section on the outer side of the holding structure. This increases the rigidity of the fixing member.

[0024] Very particularly preferably, the support member at least partially forms a joint surface at the outer circumference, which is used to form a fillet weld for the welded connection between the fixing member and the shock absorber tube. The advantage of this design is that the welded connection between the fixing member and the shock absorber tube can thus be realized by lap joint in a simple manner, which reduces the manufacturing cost of the shock absorber with the fixing member. If the support member has a U-shaped configuration here, a fillet weld can be formed at a low cost on the outer side of the U-shaped configuration of the support member, thereby forming the welded connection between the fixing member and the shock absorber tube.

[0025] In the case of a U-shaped configuration of the support of the fixing component, the legs each define at least essentially straight a portion of the joining surface for forming the fillet weld, whereas the middle section forms a portion of the joining surface for forming the fillet weld in a convexly curved manner, which has proven to be advantageous with regard to the load-bearing capacity of the welded connection thus formed.

[0026] According to one embodiment of the invention, the dividing surface is a symmetry plane of the fixing member. This also means that the two halves of the fixing member are mirror images of each other and form half of the fixing member.

[0027] Furthermore, a shock absorber for a chassis of a motor vehicle is also the subject of the invention, wherein the shock absorber is preferably a shock absorber of a spring independent suspension or a spring strut independent suspension. The shock absorber comprises a shock absorber tube, at which the shock absorber forms a welded connection with a fastening component according to one or more of the above-described variants. Particularly preferably, the shock absorber is a telescopic damper, wherein the shock absorber can be a monotube damper or a twin-tube damper in particular.

[0028] In the state in which the fastening component is welded to the shock absorber tube, the fastening component is preferably oriented in the longitudinal direction of the shock absorber tube, wherein the base section of the retaining structure of the fastening component points to the end of the shock absorber tube at which the piston rod of the shock absorber is guided out of the shock absorber tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The advantageous embodiments of the invention explained below are shown in the accompanying drawings. In them:

[0030] Figure 1 shows a perspective view of a portion of a shock absorber according to the present invention;

[0031] Figure 2 Shows Figure 1 A detailed view of the vibration damper in the region of the fastening component designed according to the first embodiment;

[0032] Figure 3 Shown before the fixing member is assembled Figure 2 Individual views of fixed components in;

[0033] Figure 4 shows details of a vibration absorber having a fixing member according to a second possible design solution of the present invention; and

[0034] Figure 5 A detail of a shock absorber having a fixing member according to a third embodiment of the invention is shown. DETAILED DESCRIPTION

[0035] Figure 1A perspective view of a part of a shock absorber 1 is shown. The shock absorber is constructed according to an embodiment of the present invention and is applied in the chassis of a motor vehicle in the case of a spring independent suspension or a shock absorber strut independent suspension. The shock absorber 1 is here a telescopic damper and can specifically be a single-tube damper or a double-tube damper having a structure known in principle to those skilled in the art. Here, the shock absorber 1 includes a shock absorber tube 2, wherein, in addition to a spring seat 3 being fixed to the shock absorber tube 2, a fixing member 4 is also fixed, which is constructed according to a first embodiment of the present invention and is fixed to the shock absorber tube 2 via a welded joint. The welded joint is here produced by a fillet weld 5, which is located between the shock absorber tube 2 and the fixing member 4 that is placed on the shock absorber tube 2 by lapping.

[0036] The fixing member 4 is used to fix the wheel carrier so as to connect the wheel carrier to the shock absorber tube 2 based on the existing welded joint and ultimately also to the shock absorber tube 2. For connecting the wheel carrier, as specifically shown Figure 2 the fixing member 4 has a U-shaped holding structure 6, which is here defined by two leg sections 7 and 8 and a base section 9 located between these leg sections 7 and 8. Although the leg sections 7 and 8 extend substantially straight and parallel to each other here, the middle base section 9 has an outwardly curved orientation.

[0037] Each of the two leg sections 7 and 8 is provided with two through-holes 10 and 11 or 12 and 13, wherein, in the parallel extending leg sections 7 and 8, the through-holes 10 and 12 and the through-holes 11 and 13 are respectively aligned with each other and here respectively define fixing points for the wheel carrier. For fixing, here the wheel carrier is introduced between the leg sections 7 and 8 on the inner side of the U-shaped holding structure 6, and is positively fixed to the fixing member 4 by respectively passing fixing elements, such as bolts or set screws, through the aligned through-holes 10 and 12 and 11 and 13.

[0038] Between the respective through-holes 10 and 11 or 12 and 13, each of the leg sections 7 and 8 also has a protrusion 14 or 15, which is here similar to a triangle and protrudes relative to the remaining leg section 7 or 8 on the outer side of the U-shaped holding structure 6. In addition, each of the leg sections 7 or 8 has a greater extent in the depth direction of the holding structure 6 at the height of the respective through-holes 10 and 11 or 12 and 13 compared to the adjacent regions, wherein the depth direction is the direction extending between the front side 16 of the holding structure 6 facing away from the shock absorber tube 2 and the back side 17 facing the shock absorber tube 2. The rigidity of each of the leg sections 7 or 8 is increased by this greater extent and the protrusions 14 and 15.

[0039] In the regions where the base section 9 transitions to the respective leg sections 7 or 8, the base section 9 is provided with notches 18 and 19, by means of which the rigidity of the retaining structure 6 in the region of the base section 9 is increased.

[0040] The retaining structure 6 is constructed protruding on the support 20 of the fixing member 4, where the support 20 is provided on the back side 17 of the retaining structure 6. Here, the fixing member 4 abuts against the shock absorber tube 2 at the support 20 and is also welded to the shock absorber tube 2 at the support 20. The support 20 is also U-shaped and is constructed on the side facing away from the retaining structure 6 as a corresponding structure of the outer contour of the shock absorber tube 2, where it abuts against the shock absorber tube 2 on this side of the support 20.

[0041] To form the U-shaped shape of the fixing member, the support 20 of the fixing member 4 consists of two legs 21 and 22 and an intermediate section 23 connecting the legs 21 and 22. Although the leg section 7 is constructed on the leg 21 and the leg section 8 is constructed on the leg 22, the base section 9 of the retaining structure 6 is constructed at the intermediate section 23, where the base section 9 and the intermediate section 23 are clamped at an obtuse angle on the outer side of the retaining structure 6. The legs 21 and 22 of the support 20 each have a substantially straight course, in contrast to which the intermediate section 23 extends curved outwards. In addition, the legs 21 and 22 and the intermediate section 23 form a joint surface 24 on the outer side of the U-shaped support 20, at which a fillet weld 5 is formed when a welded connection is formed between the fixing member 4 and the shock absorber tube 2. The transition halves from the support 20 to the retaining structure 6 are also rounded respectively in order to increase the load-bearing capacity of these transitions.

[0042] To reduce the manufacturing costs when manufacturing the fixing member 4, the fixing member 4 is divided along Figure 2 the indicated parting surface 25 into two halves 26 and 27, which are shown in Figure 3 a state spaced apart from each other and before being assembled into the fixing member 4. To form the fixing member 4, the two halves 26 and 27 contact each other at the contact surfaces 28 and 29 facing each other. Since the fixing member 4 is divided into two halves 26 and 27, the base section 9 as well as the intermediate section 23 are also each divided, where the half 26 here forms in addition to the leg section 7 and the leg 21 also the base section half 30 and the intermediate section half 31, in contrast to which the half 27 forms in addition to the leg section 8 and the leg 22 also the base section half 32 and the intermediate section half 33.

[0043] The contact surfaces 28 and 29 furthermore each form a joint surface 34 or 35 along their entire respective lengths. After the two halves 26 and 27 are placed against each other, the two halves are welded at the joint surfaces by means of a butt weld (Stumpfstoβ) with a weld seam 36, which is shown in Figure 2 . Thereby, the two halves 26 and 27 are fixed to each other in their positions forming the fixing member 4.

[0044] The interface 25 is furthermore a symmetry plane of the fixing member 4, such that the halves 26 and 27 are mirror images of each other at the interface 25 and form the halves of the fixing member 4.

[0045] Figure 4 A detailed view of the shock absorber 37 is shown. The fixing member 38 is fixed to the shock absorber tube 2 of the shock absorber via a welded connection according to a second feasible design of the present invention. Here, the shock absorber 37 and the fixing member 38 largely correspond to the Figures 1 to 3 previous variant, with the difference that the weld seam 39 between the halves 26 and 27 is now formed only over a partial length of the contact surfaces 28 and 29 of the halves 26 and 27. In this regard, the contact surfaces 28 and 29 also form joint surfaces for the realization of the weld seam 39 only over the respective partial lengths, namely essentially in the region of the retaining structure 6. Otherwise, the design according to Figure 4 corresponds to the variant according to Figures 1 to 3 , and thus reference is made to what has already been described in this regard.

[0046] Finally, Figure 5 a detailed view of the shock absorber 40 in the region of the fixing member 41 is also shown. The fixing member 41 is realized according to another embodiment of the present invention and is fixed to the shock absorber tube 2 of the shock absorber via a welded connection. The variant according to Figure 5 also largely corresponds to the embodiment according to Figures 1 to 3 , with the difference that the halves 42 and 43 into which the fixing member 41 is divided along the interface 25 are not welded together, but only placed against each other to form the fixing member 41. The two halves 42 and 43 form the base section halves 44 and 45 of the base section 46 of the retaining structure 47 of the fixing member 41, wherein the base section halves 44 and 45 define a recess 48 of the retaining structure 47 here. The recess 48 tapers wedge-shaped from the front side 16 to the back side 17 of the retaining structure 47 here. Furthermore, the contact surfaces 49 and 50 of the halves 42 and 43 are now formed only at the middle section halves 31 and 33 of the middle section 23, which are part of the U-shaped support 20. However, within the scope of the present invention, the contact surfaces 49 and 50 can also form joint surfaces in order to form a welded connection between the halves 42 and 43. In other respects, the variant according to Figure 5The embodiment corresponds to a variant according to Figures 1 to 3 and reference is made to what has been described in this regard.

[0047] By means of the design according to the invention, a fixing member for fixing a wheel carrier to a damper tube of a damper can be realized at low manufacturing cost.

[0048] List of reference signs:

[0049] 1 Damper

[0050] 2 Damper tube

[0051] 3 Spring seat

[0052] 4 Fixing member

[0053] 5 Fillet weld

[0054] 6 Retaining structure

[0055] 7 Leg section

[0056] 8 Leg section

[0057] 9 Base section

[0058] 10 Through-hole

[0059] 11 Through-hole

[0060] 12 Through-hole

[0061] 13 Through-hole

[0062] 14 Projection

[0063] 15 Projection

[0064] 16 Front side

[0065] 17 Back side

[0066] 18 Notch

[0067] 19 Notch

[0068] 20 Support

[0069] 21 Leg

[0070] 22 Leg

[0071] 23 Intermediate section

[0072] 24 Joint surface

[0073] 25 Interface

[0074] 26 Half

[0075] 27 Half part

[0076] 28 Contact surface

[0077] 29 Contact surface

[0078] 30 Base section half part

[0079] 31 Intermediate section half part

[0080] 32 Base section half part

[0081] 33 Intermediate section half part

[0082] 34 Joint surface

[0083] 35 Joint surface

[0084] 36 Weld seam

[0085] 37 Shock absorber

[0086] 38 Fixing member

[0087] 39 Weld seam

[0088] 40 Shock absorber

[0089] 41 Fixing member

[0090] 42 Half part

[0091] 43 Half part

[0092] 44 Base section half part

[0093] 45 Base section half part

[0094] 46 Base section

[0095] 47 Retaining structure

[0096] 48 Recess

[0097] 49 Contact surface

[0098] 50 Contact surface

[0099] 51 Intermediate section half part

[0100] 52 Intermediate section half part

[0101] 53 Intermediate section.

Claims

1. Fixing member (4; 38; 41) for fixing a wheel carrier to a damper tube (2) of a damper (1; 37; 40), said damper (1; 37; 40) being in particular a damper of a spring strut independent suspension or a shock absorber strut independent suspension, and said fixing member comprising a U-shaped retaining structure (6; 47) formed by two leg sections (7, 8) and a base section (9; 46) located between said two leg sections (7, 8), wherein, The outrigger sections (7, 8) are provided with pairs of mutually aligned through-parts (10, 11, 12, 13) which form at least one fixing point for fixing the fixing member (4; 38; 41) to the wheel carrier via the retaining structure (6; 47), and wherein the fixing member (4; 38; 41) is fixed to the damper tube (2) via a welded joint on the back side (17) of the retaining structure (6; 47), characterized in that the fixing member (4; 38; 41) is divided into two halves (26, 27; 42, 43) along an interface (25) extending through the base section (9; 46) of the retaining structure (6; 47), and the two halves are in contact with each other at contact surfaces (28, 29; 49, 50) facing each other to form the fixing member (4; 38; 41).

2. The fixing member (4; 38) according to claim 1, characterized in that, The contact surfaces (28, 29) at least partially form joint surfaces (34, 35), and the two halves (26, 27) in contact with each other are welded to each other at the joint surfaces.

3. The fixing member (4; 38) according to claim 1 or 2, characterized in that The contact surfaces (28, 29) are at least partially located at base section halves (30, 32) respectively assigned to one of the halves (26, 27), and jointly form the base section (9) of the retaining structure (6) when the halves (26, 27) are in contact with each other.

4. The fixing member (4; 38) according to claims 2 and 3, characterized in that, The joint surfaces (34, 35) are at least partially located at the base section halves (30, 32).

5. The fixing member (41) according to any one of the preceding claims, characterized in that, The base section (46) is provided with a recess (48) defined between the base section halves (44, 45), wherein the base section halves (44, 45) are respectively arranged at the corresponding halves (42, 43), and jointly form the base section (46) of the retaining structure (47) when the halves (42, 43) are in contact with each other.

6. The fixing member (41) according to claim 5, characterized in that, The recess (48) tapers from the front side (16) of the retaining structure (47) towards the back side (17) of the retaining structure (47).

7. The fixing member (4; 38; 41) according to any one of the preceding claims, characterized in that, A support (20) is constructed at the back side (17) of the retaining structure (6; 47), and a welded joint can be formed between the fixing member (4; 38; 41) and the damper tube (2) at the support, and the retaining structure (6; 47) is prominently constructed on the support, wherein the side of the support (20) facing away from the retaining structure (6; 47) is constructed as a corresponding structure of the outer contour of the damper tube (2) in the abutment area.

8. The fixing member (4; 38; 41) according to claim 7, characterized in that, The support member (20) is U-shaped and has legs (21, 22) and an intermediate section (23) connecting the legs (21, 22), wherein one of the leg sections (7, 8) of the holding structure (6; 47) is respectively constructed on each of the legs (21, 22), and a base section (9; 46) of the holding structure (6; 47) is constructed on the intermediate section (23), and wherein the interface (25) additionally extends through the intermediate section (23) of the support member (20).

9. The fixing member (4; 38; 41) according to claim 8, characterized in that, The contact surfaces (28, 29; 49, 50) are at least partially located at intermediate section halves (31, 33), the intermediate section halves (31, 33) are respectively provided at respective halves (26; 27; 42; 43), and together form the intermediate section (23) of the support member (20) when the halves (26; 27; 42; 43) abut against each other.

10. The fixing member (4; 38; 41) according to claim 8 or 9, characterized in that, The base section (9; 46) and the intermediate section (23) are clamped at an obtuse angle to each other on the outer side of the holding structure (6; 47).

11. The fixing member (4; 38; 41) according to any one of claims 7 to 10, characterized in that, The support member (20) at least partially forms a joint surface (24) at the outer circumference, and the joint surface is used to form a fillet weld (5) of the welded joint between the fixing member (4; 38; 41) and the shock absorber tube (2).

12. The fixing member (4; 38; 41) according to any one of claims 8 to 10 and claim 11, characterized in that, The legs (21, 22) respectively at least substantially straightly define a part of the joint surface (24) for forming the fillet weld (5), in contrast, the intermediate section (23) is convexly curved to form a part of the joint surface (24) for forming the fillet weld (5).

13. The fixing member (4; 38; 41) according to any one of the preceding claims, characterized in that, The interface (25) is a symmetry plane of the fixing member (4; 38; 41).

14. A shock absorber (1; 37; 40) for a chassis of a motor vehicle, the shock absorber includes a shock absorber tube (2), and the shock absorber forms a welded joint with the fixing member (4; 38; 41) according to any one or more of claims 1 to 13 at the shock absorber tube (2).

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