DE102017220953A1 - Suspension component and motor vehicle - Google Patents

Abstract

The invention relates to a chassis component having a first section made of fiber-reinforced plastic and a second section, wherein the first section and the second section have a common contact area, in which the first section and the second section are materially connected, characterized in that one of the sections at least one pin member extending into the second portion and forming a further connection between the first portion and the second portion.
In addition, the invention relates to a motor vehicle.

Description

The invention relates to a chassis component having a first section made of fiber-reinforced plastic and a second section, wherein the first section and the second section have a common contact area, in which the first section and the second section are materially connected.

It is known to construct suspension components modular, that is, that they consist of different materials. Different materials or different fibers in fiber-reinforced plastics are also considered as different materials. There is the problem of permanently connecting the elements made of different materials, that is, they maintain their connection even during prolonged use, especially in large temperature differences.

Proceeding from this, it is an object of the present invention to provide a chassis component, in which a permanent connection between a section made of fiber-reinforced plastic and a second section is ensured.

To solve the problem, it is proposed that one of the sections has at least one pin element which extends into the other section and forms a further connection between the first section and the second section.

The contact region can be realized by two planar surfaces, but it can also be cylindrically shaped contact surfaces. Other contact surfaces forming the contact area are also conceivable. From one of these contact surfaces in the contact area now protrudes a pin element, penetrates the other contact surface and thus forms a further connection between the two sections. Of course, the mutually facing surfaces of the first and second sections are the contact surfaces. The first section and the second section may also have other surfaces that have no contact with the other section.

The pin element may be any pin-like element. This means first of all only that it has a basically elongated shape. Nothing should be said about their exact arrangement or the aspect ratio of longitudinal axis to transverse axis or the like. Preferably, the pin member has a greater rigidity than the first portion, more specifically as the matrix material of the first portion. The pin element is therefore preferably harder or stiffer than the plastic in the first section.

Preferably, the at least one pin element can be arranged in the first section. This means that the at least one pin element is arranged in the first section before the connection with the second section. As soon as the pin element is connected to the second section, it is of course also arranged in this. More precisely, the at least one pin element is thus arranged in front of the connection with the two sections in the first section.

Advantageously, the at least one pin element can connect the first section and the second section in a form-fitting manner. Usually, depending on the material of the second portion between the at least one pin member and the second portion also present a material connection. A positive connection can also be realized without any material connection. With a positive connection, the durability of the connection is ensured in particular with temperature fluctuations.

Advantageously, a plurality of pin elements may be provided which interconnect the first portion and the second portion. It is basically conceivable that a part of the pin elements is arranged in the first section and another part of the pin elements in the second section prior to assembly. Preferably, however, all pin elements are arranged in one of the two sections prior to assembly.

Preferably, at least a part of the plurality of pin elements is arranged on a carrier. In particular, all pin elements can be arranged on a carrier. This simplifies assembly to allow the pin elements to be inserted as a prefabricated pin structure with the portion to which they are to be connected first in a single assembly step. First, the pin structure is thus connected, for example, to the first section, and as soon as this section is prefabricated, the connection to the second section is established.

Preferably, the second portion may be metal. Alternatively, the second section may be made of fiber reinforced plastic. Then either the matrix material of the first section and the second section may differ. Preferably, however, the matrix material of the first section and the second section are the same. Then, the difference of the material may consist in that short fibers and / or long fibers are contained in the second section, while the first section contains at least one continuous fiber unit. The first section may additionally contain short fibers and / or long fibers, but it is preferred that the first section as Fiber material contains only continuous fibers or an endless fiber. The endless fiber unit can be designed as a single continuous fiber or as a roving.

In particular, the endless fiber unit may be formed as a winding structure. But it can also be a braided structure.

Advantageously, the at least one pin element can be cylindrical. Alternatively or additionally, the at least one pin element may be wave-shaped. A waveform automatically results in a positive connection as soon as the second section encloses the pin element.

In this case, in the case of a multiplicity of pin elements, a part may be cylindrical and part wavy. Preferably, however, all pin elements have the same shape.

In one embodiment, the at least one pin element can be arranged obliquely on a support. This means that the pin element is inclined to the contact surface. In the case of several inclined pin elements, such positive locking can be achieved.

Preferably, the pin element may consist of a section of an endless fiber. In particular, the at least one pin element can be arranged on a carrier made of fiber-reinforced plastic.

Advantageously, the first section and / or the second section can store a force introduction element, in particular a joint. In these areas, a permanent connection of the sections is particularly advantageous since, in addition to temperature fluctuations, stress also occurs due to introduced forces.

In addition, the invention relates to a motor vehicle with a chassis component. This is characterized by the fact that the chassis component is designed as described.

• 1 ein Fahrwerksbauteil,
• 2 einen ersten Abschnitt in einer ersten Ausgestaltung,
• 3 einen ersten Abschnitt in einer zweiten Ausgestaltung,
• 4 den ersten Schritt eines Verbindungsvorgangs,
• 5 den zweiten Schritt eines Verbindungsvorgangs,
• 6 einen verbundenen ersten und zweiten Abschnitt,
• 7 einen Teil eines Fahrwerksbauteils in einer zweiten Ausgestaltung,
• 8 einen ersten Abschnitt in einer dritten Ausgestaltung,
• 9 einen Kontaktabschnitt in einer dritten Ausgestaltung,
• 10 eine Anordnung zur Herstellung von Stiftelementen,
• 11 den ersten Schritt eines Verfahrens zur Herstellung eines Stiftelementes,
• 12 den zweiten Schritt eines Verfahrens zur Herstellung eines Stiftelementes,
• 13 einen dritten Schritt eines Verfahrens zur Herstellung eines Stiftelementes,
• 14 ein Stiftelement in einer ersten Ausgestaltung,
• 15 mehrere Stiftelemente,
• 16 einen ersten Abschnitt in einer vierten Ausgestaltung,
• 17 einen ersten Abschnitt in einer fünften Ausgestaltung,
• 18 einen ersten Abschnitt in einer sechsten Ausgestaltung,
• 19 einen ersten Abschnitt in einer siebten Ausgestaltung,
• 20 einen ersten Abschnitt in einer achten Ausgestaltung,
• 21 einen ersten Abschnitt in einer neunten Ausgestaltung,
• 22 einen ersten Abschnitt in einer zehnten Ausgestaltung,
• 23. einen ersten Abschnitt in einer elften Ausgestaltung, und
• 24 einen ersten Abschnitt in einer zwölften Ausgestaltung,

Further advantages, features and details of the invention will become apparent from the following description of exemplary embodiments and figures. Showing:

• 1 a chassis component,
• 2 a first section in a first embodiment,
• 3 a first section in a second embodiment,
• 4 the first step of a connection process,
• 5 the second step of a connection process,
• 6 a connected first and second section,
• 7 a part of a chassis component in a second embodiment,
• 8th a first section in a third embodiment,
• 9 a contact portion in a third embodiment,
• 10 an arrangement for the production of pin elements,
• 11 the first step of a method of making a pin element,
• 12 the second step of a method for producing a pin element,
• 13 a third step of a method for producing a pin element,
• 14 a pin element in a first embodiment,
• 15 several pin elements,
• 16 a first section in a fourth embodiment,
• 17 a first section in a fifth embodiment,
• 18 a first section in a sixth embodiment,
• 19 a first section in a seventh embodiment,
• 20 a first section in an eighth embodiment,
• 21 a first section in a ninth embodiment,
• 22 a first section in a tenth embodiment,
• 23 , a first section in an eleventh embodiment, and
• 24 a first section in a twelfth embodiment,

1 shows a chassis component 1 , This is purely exemplary of a 3-point handlebars. The chassis component 1 but can also be designed as a 2-point link, Hinterachsgetriebequerträger, etc. The chassis component 1 has three force introduction areas 2 and 3 of which the force introduction areas 3 are designed for storing a joint. These force introduction areas 3 are shown in more detail below.

2 shows a first section in a first embodiment. The first section has a base area prior to connection to the second section 4 in which a pin structure 5 is incorporated. The base area 4 consists of fiber-reinforced plastic, namely of matrix material, are incorporated in the short and long fibers. The base area 4 consists of a short / long fiber plastic composite structure. The pin structure consists of a large number of pin elements 6 on a support element 7 are arranged. More specifically, the pin elements 6 firmly with the carrier element 7 connected and can so as a prefabricated component in one step to the base area 4 be added so that the first section 8th arises.

3 shows a first section 8th in a second embodiment. It can be seen that the first section 8th also several pin structures 5 and that also the design of the base area 4 basically freely selectable.

4 shows the first step of a method for producing a contact region or connecting region between the first section 8th and a second section 9 , At the second section 9 it is another section of the chassis component 1 which is prefabricated. For example, the second section 9 made of metal or of a fiber-reinforced plastic other than the first section 8th , In particular, the first section may be 8th and the second section 9 differ in the choice of fiber material. In particular, the second section 9 have a continuous fiber unit.

5 shows the second step of the connection process. Here are the first section 8th and the second section 9 joined together, also are the pin elements 6 already partially in the second section 9 introduced. This preferably has either a correspondingly soft material or holes are prefabricated, so that the penetration of the pin elements 6 is relieved.

6 shows a completed contact area 10 with a first contact surface 12 and a second contact surface 14 , While in known compounds only a material connection via the first contact surface 12 and the second contact surface 14 can now be done via the pin structure 5 or the pin elements 6 another cohesive connection and / or a positive connection between the first section 8th and the second section 9 getting produced.

7 shows a contact area 10 in a second embodiment. It can be seen that the second section 9 may have different configurations. While in 6 a cuboid or flat basic shape is present has the second section 9 in 7 a kind of conical basic form.

8th shows that the first section 8th and is not limited in shape to rectangular shapes. In particular, the contact surface 12 also assume a circular shape and any other arbitrary shape. Accordingly, the pin elements 6 arbitrarily arranged.

9 shows a possible embodiment of the contact area 10 with a first section 8th , as in 8th shown. It can also be a first section 8th and two second sections 9 be connected to each other.

10 shows an arrangement for producing the pin elements 6 , This will be a section 16 a roving 18 consisting of several continuous fibers 20 on a support element 22 applied and by means of a cutting device 24 separated. This can be the continuous fiber 20 via a dosing head 26 and a chamber 28 containing matrix material with the carrier element 22 be connected cohesively. The carrier element 22 preferably also consists of fiber-reinforced plastic.

11 shows the first step to one 10 feasible connection method. Here is the section 16 in the dosing head 26 fixed and becomes the carrier element 22 guided.

12 shows the attachment of a variety of pin elements 6 on a support element 22 , It is located at the foot of the pin elements 6 some matrix material for connection to the carrier element 22 ,

In 13 is the cutting process by means of the cutting device 24 shown. This allows an identical design of the height of the pin elements 6 ,

14 shows an alternative embodiment of the preparation of the first section 8th , This will be a section 16 with matrix material 30 surrounded and this process repeated several times. This creates as in 15 to see several pen elements 6 that by means of matrix material 30 are connected.

16 shows the finished first section 8th that has a variety of pen elements 6 that has over matrix material 30 are connected. There is no carrier element 22 needed.

The cross section of the pin elements 6 is basically freely selectable, it can be circular, elliptical or diamond-shaped. The pin elements 6 can, so to speak, be made of solid material or be hollow.

In the following 8 figures are purely exemplary different configurations of the pin structure 5 shown. The base area shown here 4 is like in 3 shown designed. The shape of the base area 4 but is basically freely selectable and purely exemplary.

17 shows two pin structures 5 with an arrangement of the pin elements, as for example in a method according to the 14 to 16 can be obtained. The pin elements 6 are without support element in the base area 4 of the first section 8th brought in.

Alternatively shows here 18 an embodiment in which the pin elements 6 first on a carrier element 22 be applied and this pin structure 5 then with the base area 4 is connected.

The 19 and 20 each show a variation of the 17 and 18 in that the pin elements 6 not perpendicular to the contact surface 12 be arranged but partially oblique. This will form a positive connection with the second section 9 achieved.

21 shows a further embodiment possibility of the pin elements 6 , These may have a thickening on at least one end, so that over this a positive connection with the second section 6 can be achieved. In this case, the pin elements 6 again with or without support member with the first section 8th be connected. It shows 22 the embodiment with carrier element 22 ,

The 23 and 24 show that even the pin elements 6 can be inclined with thickening and in each case with or without support element 22 can be introduced.

• - die Stiftelemente 6 teilweise oder alle schräg zur Kontaktfläche angeordnet sein können;
• - die Stiftelemente teilweise oder alle eine Verdickung an wenigstens einem Ende, insbesondere an dem Ende, dass zum zweiten Abschnitt zeigt, aufweisen können;
• - die Stiftelemente ohne oder mit Trägerelement in den ersten Abschnitt 8 eingebracht werden können.

The 17 to 24 show that independently and in particular of the design of the first section 8th and the second section 9

• - the pin elements 6 may be arranged partially or all obliquely to the contact surface;
• the pin elements may have partial or all a thickening at at least one end, in particular at the end pointing to the second section;
• - The pin elements with or without support element in the first section 8th can be introduced.

LIST OF REFERENCE NUMBERS

1

chassis component

2

Force application area

3

Force application area

4

base region

5

pin structure

6

pin element

7

support element

8th

first section

9

second part

10

contact area

12

first contact surface

14

second contact surface

16

section

18

roving

20

continuous fiber

22

support element

24

cutter

26

dosing

28

chamber

30

matrix material

Claims (14)

Chassis component (1) having a first section (8) made of fiber-reinforced plastic and a second section (9), wherein the first section (8) and the second section (9) have a common contact region (10), in which the first section (10). 8) and the second section (9) are materially connected, characterized in that one of the sections (8, 9) has at least one pin element (6) extending into the other section (9, 8) and another connection between the first section (8) and the second section (9). Chassis component after Claim 1 , characterized in that the at least one pin element (6) in the first section (8) is arranged. Chassis component after Claim 1 or 2 , characterized in that the at least one pin element (6) the first portion (8) and the second portion (9) positively and / or materially connects. Chassis component according to one of the preceding claims, characterized in that a plurality of pin elements (6) is provided which connect the first portion (8) and the second portion (9) with each other. Chassis component after Claim 4 , characterized in that at least a part of the pin elements (6) is arranged on a carrier element (22). Chassis component according to one of the preceding claims, characterized in that the second portion (9) is made of metal. Suspension component according to one of the Claims 1 to 5 , characterized in that the second section (9) consists of fiber-reinforced plastic. Chassis component after Claim 7 , characterized in that the second section (9) comprises an endless fiber arrangement. Chassis component according to one of the preceding claims, characterized in that the first section (8) contains short fibers and / or long fibers. Chassis component according to one of the preceding claims, characterized in that the at least one pin element (6) is cylindrical. Chassis component according to one of the preceding claims, characterized in that the at least one pin element (6) is wave-shaped. Chassis component according to one of the preceding claims, characterized in that the at least one pin element (6) is arranged obliquely on a support. Suspension component according to one of the preceding claims, characterized in that the first portion (8) and / or the second portion (9) a force introduction element, in particular a hinge store. Motor vehicle with a chassis component, characterized in that the chassis component (1) is designed according to one of the preceding claims.

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