WO2020216011A1

WO2020216011A1 - Steering wheel assembly for motor vehicle, and assembly method therefor and structural component thereof

Info

Publication number: WO2020216011A1
Application number: PCT/CN2020/082232
Authority: WO
Inventors: 杨磊; 陈志远; 杨贵己; 邹享文
Original assignee: 延锋汽车智能安全系统有限责任公司
Priority date: 2019-04-26
Filing date: 2020-03-31
Publication date: 2020-10-29
Also published as: CN110116749A

Abstract

Disclosed are a structural component of a steering wheel assembly for a motor vehicle, the structural component comprising a ringing mechanism (3) and an airbag (2). The ringing mechanism (3) comprises a first component (32), a second component (31) capable of moving relative to the first component (32), and a spring element (33), wherein a spring force of the spring element (33) enables the first component (32) and the second component (31) to be separated from each other. The second component (31) can occupy an initial position and a pressing position, and at the pressing position, the ringing mechanism (3) can be connected to an automobile horn. The first component (32) is used for being directly mechanically connected to a steering wheel frame (11). A housing of the airbag (2) is directly mechanically connected to the second component (31), and is not directly mechanically connected to the steering wheel frame (11). The present invention further relates to a steering wheel assembly for a motor vehicle, and an assembly method for the steering wheel assembly. The structural component can achieve ease of assembly thereof in a steering wheel assembly, and reduce the risk of damage to an airbag during assembly.

Description

Steering wheel assembly for motor vehicle, assembling method and structural component thereof

Technical field

The present invention relates to the technical field of motor vehicle safety, and more specifically to a structural assembly for a steering wheel assembly, a steering wheel assembly for a motor vehicle including such a structural assembly, and a steering wheel assembly assembly method.

Background technique

In some motor vehicles, the steering wheel assembly includes a button mechanism and an airbag, which are constituted as a structural component, which can have two functions: provide a floating button, in which, when the structural component is pressed, the car horn is activated ; In an emergency situation of a motor vehicle, such as a collision accident, the airbag is activated, in which the folded inflatable airbag is quickly inflated and inflated, thus providing a certain safety protection for the driver of the motor vehicle. The airbag needs to be reliably fixed and installed on the steering wheel frame, and is not allowed to fall off from the steering wheel frame when it is activated. This fall off may pose a safety threat to the driver.

Figure 1 shows a steering wheel assembly known from the prior art, which includes a steering wheel frame 11, an airbag 13 and a pressing mechanism 15. The airbag 13 has a housing 14 with a plurality of protruding The hook member 17 and the pressing mechanism 15 have a plurality of through holes 16, and the steering wheel frame 11 is equipped with a wire 18. The hook member 17 passes through the through hole 16 and is hooked to the wire 18. In the process of assembling the steering wheel assembly, it is necessary to insert the hook member 17 into the through hole 16 and press the housing 14 of the airbag hard until the hook member 17 is hooked on the wire 18. In the assembly process, pressing hard, on the one hand, requires a higher assembly cost, on the other hand, it may bring the risk of damage to the airbag, and may also bring the risk of damage to other parts of the steering wheel assembly. In addition, the precise positioning of the airbag relative to the steering wheel skeleton in the XY plane (ie, a plane perpendicular to the longitudinal axis of the steering wheel assembly) requires a strict dimensional tolerance between the through hole 16 and the hook member 17. Too large or too small gaps may have adverse effects. For related prior art, for example, see patent documents CN201816545U and CN205256418U.

Summary of the invention

Starting from the prior art, the purpose of the present invention is to propose a structural component for a steering wheel assembly of a motor vehicle, a steering wheel assembly including such a structural component, and a method for assembling the steering wheel assembly, Wherein, the assembly of the structural components on the steering wheel assembly is friendly.

According to the first aspect of the present invention, the object is achieved by a structural component for a steering wheel assembly, the structural component includes an airbag and a sounding mechanism for a car horn, the airbag has a housing, and The pressing mechanism includes a first part, a second part movable relative to the first part, and a spring element. The spring force of the spring element makes the first part and the second part separate from each other, and the second part can occupy and pass through The spring force of the spring element maintains the initial position relative to the first part, and can be pressed to a predetermined pressing position relative to the first part under the condition of overcoming the spring force of the spring element. In the pressing position, all The pressing mechanism can switch on the car horn; the first part is configured to be directly mechanically connected to the steering wheel frame of the steering wheel assembly; the housing of the airbag is configured to be connected to the second part It is directly mechanically connected, and there is no direct mechanical connection with the steering wheel frame of the steering wheel assembly.

In the structural assembly according to the present invention, there is no need to provide through holes, hook-shaped elements and metal wires forming a clamping structure as known from the prior art, so that the defects that have been discussed above can be avoided.

The mechanical connection can be realized, for example, in a form-locking, force-locking and/or material-locking manner.

In some embodiments, the first member may be configured as a lower sheet member, and the second member may be configured as an upper sheet member, the upper sheet member and the lower sheet member On top of each other. In some embodiments, the first member may be configured as a lower sheet member, and the second member may be configured as an upper rod member. In some embodiments, the first component and the second component may also be arranged in a nested manner or arranged side by side with each other.

In some embodiments, the first component and the second component may each have a partial annular extension. For example, the first part and the second part may have C-shaped or U-shaped extensions, respectively. The first part and the second part may also have an annular extending direction, or may have any other suitable shapes.

In some embodiments, the first component and the second component may at least partially have an overmolding layer.

In some embodiments, the first component and the second component may have at least one pair of first mounting holes aligned with each other, and the pair of first mounting holes are used to correspondingly receive the first fastening element, the The first fastening element is configured to fasten the first component to the steering wheel skeleton. The number of pairs of the first mounting holes may be, for example, 2 pairs, 3 pairs, 4 pairs or more pairs.

In some embodiments, the first fastening element may be a screw configured to be screwed into the threaded hole of the steering wheel skeleton; and preferably, the screw head of the screw may be configured for the second The stop portion of the component, wherein, in the initial position of the second component relative to the first component, the second component is blocked by the screw head. In other embodiments, the first fastening element may also be a rivet or a snap element.

In some embodiments, the pressing mechanism may include multiple spring elements and multiple pairs of first mounting holes. Preferably, each spring element may be mounted between the pair of first mounting holes and be first The fastening element passes through.

In some embodiments, the first part, the second part and the spring element can form a pre-assembled unit.

In some embodiments, the first component and the second component may have a limiting structure. In the pre-assembled state, the limiting structure limits the maximum separation position of the second component relative to the first component. In the maximum separation position, the spring element is held between the first part and the second part.

In some embodiments, the limiting structure may include an opening provided in one of the first part and the second part and a hook-shaped element protruding from the other of the first part and the second part, so The hook-shaped element passes through the opening. In other embodiments, the limiting structure may include a clamping element, and the clamping element may clamp the first part and the second part together with a spring element disposed between them.

In some embodiments, the spring element may be a coil spring, a torsion spring, a leaf spring, an air spring, or a spring made of elastomer rubber.

In some embodiments, the housing of the airbag and the second component may have at least a pair of mating surfaces, and the housing of the airbag and the second component may be connected to each other through the mating surfaces. The number of pairs of the mating surfaces may be, for example, 2 pairs, 3 pairs, 4 pairs or more pairs.

In some embodiments, the pair of mating surfaces may abut each other in a planar manner.

In some embodiments, the pair of mating surfaces may be respectively configured as flanging structures bent from the corresponding base body.

In some embodiments, the pair of mating surfaces may have at least a pair of second mounting holes, and the pair of second mounting holes may be passed through by a corresponding second fastening element. In other embodiments, the paired mating surfaces may be connected to each other by stamping riveting, bonding or welding.

In some embodiments, the second fastening element may be a screw; preferably, the inner second mounting hole of the pair of second mounting holes may be provided with a rivet nut, and the second tightening The solid element can be screwed into the rivet nut. In other embodiments, the second fastening element may be a rivet or a snap element or a push rivet.

In some embodiments, the second component may have a positioning pin, and the housing of the airbag may have a positioning hole, and the positioning pin can be inserted into the positioning hole.

In some embodiments, the positioning pin may have a rubber coating.

In some embodiments, the encapsulation layer may be made of elastic rubber or plastic materials.

In some embodiments, the positioning pin may have a ring shoulder, and the housing of the airbag can rest on the ring shoulder.

In some embodiments, the second component may have a snap element, and the snap element, the positioning pin and the positioning hole may jointly realize the positioning of the housing of the airbag relative to the second component.

In some embodiments, the first part and the second part may have electrical contact elements that cooperate with each other. In the initial position, the electrical contact elements are separated from each other, and in the pressing position, the electrical contact The component contact is turned on so that the car horn can be activated. In the meaning of the present invention, the pressing mechanism can be understood as a switch of a car horn.

In some embodiments, as an electrical contact element, the first part may have a steel wire and the second part may have a contact. In other embodiments, a reversed arrangement is also possible.

In some embodiments, the second component may have two, three or more distributed contacts.

In some embodiments, the electrical contact element may be overmolded in the corresponding first part or second part.

In some embodiments, the housing of the airbag may include a door cover and a housing part connected to the door cover, and the housing part is directly mechanically connected to the second part.

In some embodiments, the first component and the second component have a C-shaped or U-shaped extension, and the extension includes two side edges and a bottom side connecting the two side edges.

In some embodiments, two pairs of first mounting holes may be respectively provided on each side, and each pair of first mounting holes is used to receive a first fastening element that is preferably configured as a screw. The screw is configured to be screwed into the threaded hole of the steering wheel skeleton, and preferably, the screw head of the screw constitutes a stopper for the second part, wherein the second part is relative to the first part at the initial stage In position, the second part is blocked by the screw head.

In some embodiments, the pressing mechanism may include four spring elements. Preferably, each spring element may be installed between a pair of first mounting holes and passed through by one of the first fastening elements.

In some embodiments, the first component, the second component, and the spring element can form a pre-assembly unit, wherein the first component and the second component have a limiting structure, and the limiting structure includes a The opening in one of the first part and the second part and the hook-shaped element protruding from the other of the first part and the second part, the hook-shaped element passing through the opening, on each side The opening and the hook-shaped element are arranged between the two pairs of first mounting holes.

In some embodiments, the housing of the airbag and the second component may have two pairs of mating surfaces, and the pair of mating surfaces are respectively configured as a flanging structure bent from a corresponding base body and have a planar shape. Abut against each other, each pair of mating surfaces has at least one pair of second mounting holes through which a corresponding second fastening element passes; preferably, the second fastening element is a screw, and the pair of second mounting holes The inner second mounting hole among the holes is provided with a pressure riveting nut, and the second fastening element can be screwed into the pressure riveting nut; preferably, the two mating surfaces of the second part are provided on two sides Aside.

In some embodiments, the second component may have two positioning pins, the housing of the airbag may have two positioning holes, and the positioning pins can be inserted into the positioning holes. Preferably, the two The positioning pins can be arranged on the free ends of the two sides.

According to a second aspect of the present invention, the object is achieved by a steering wheel assembly for a motor vehicle, the steering wheel assembly includes a steering wheel skeleton, and the steering wheel assembly includes the steering wheel according to the first aspect of the present invention The structural component of the assembly, the first component of the structural component is directly mechanically connected to the steering wheel frame, and the housing of the airbag and the second component of the structural component are directly mechanically connected to the steering wheel assembly The steering wheel skeleton has no direct mechanical connection.

In some embodiments, the steering wheel skeleton may have a plurality of threaded holes configured to receive screws as the first fastening element.

According to the third aspect of the present invention, the object is achieved by a method for assembling a steering wheel assembly for a motor vehicle, the method comprising the steps:

Placing the pre-assembly unit of the pressing mechanism on the steering wheel skeleton, wherein the pre-assembly unit includes a first part, a second part and a spring element;

Passing the first fastening element formed as a screw through the first mounting hole in the pressing mechanism and screwing it into the threaded hole of the steering wheel skeleton, so that the first component is directly mechanically connected to the steering wheel skeleton;

Position the housing of the airbag on the pressing mechanism through the positioning pins and positioning holes that cooperate with each other; and

The second fastening element configured as a screw is passed through the paired second mounting holes in the second component and in the housing of the airbag and tightened so that the housing of the airbag is in contact with the The second part is directly mechanically connected.

It should be pointed out here that the technical features mentioned above and the technical features mentioned later can be combined with each other arbitrarily, as long as the combined technical features are not mutually contradictory. All technically feasible feature combinations are the technical content clearly recorded in this application.

Description of the drawings

The present invention will be explained in more detail below with the aid of embodiments with reference to the drawings. The schematic drawings are briefly described as follows:

Figure 1 is a longitudinal sectional view of a steering wheel assembly according to the prior art;

Figure 2 is a top view of a steering wheel assembly according to an embodiment of the present invention;

Figure 3 is an exploded view of the steering wheel assembly according to Figure 2;

Figure 4 is a perspective view of a pressing mechanism according to an embodiment of the present invention;

Figures 5 and 6 are respectively longitudinal sectional views of the steering wheel assembly according to Figure 2;

Figure 7 is a top view of a structural component according to an embodiment of the present invention; and

Fig. 8 is a sectional view taken along the section A-A in Fig. 7.

Detailed ways

2 is a top view of the steering wheel assembly 1 according to an embodiment of the present invention, and FIG. 3 is an exploded view of the steering wheel assembly 1 according to FIG. 2.

The steering wheel assembly 1 has a steering wheel skeleton 11, and the steering wheel skeleton 11 has a central accommodating space. The airbag 2 and the sounding mechanism 3 for the car horn can be accommodated in the accommodating space as a structural component. A plurality of threaded holes 12 may be provided at the bottom of the accommodating space of the steering wheel, and these threaded holes 12 may be formed by, for example, clinch nuts.

The airbag 2 has a housing and an inflatable air bag received in the housing. In the inactive state, the air bag is folded and housed in the housing. The housing may include a lower housing part 21 and a door cover 22. For example, in a traffic accident, the airbag 2 can be activated, so the gas generator quickly generates a large amount of gas in a short time. The gas is filled into the air bag to inflate the air bag and thus provide the driver of the motor vehicle with A certain degree of security protection.

As can be seen from Figure 3, the pressing mechanism 3 can be directly mechanically fixed to the steering wheel frame 11 through the four first fastening elements 5, and the airbag 2 can be fixed to the pressing mechanism through the two second fastening elements 4 3, more specifically, it is fixed to the second part of the button mechanism 3 so as to be fixed only indirectly to the steering wheel frame. In other words, the airbag 2 is not directly mechanically connected to the steering wheel frame, as will be more specifically described below Clearly stated. Here, the fastening elements can be formed as screws. Here, the structural form, number and layout of the fastening elements are all exemplary.

FIG. 4 is a perspective view of the button mechanism 3 according to an embodiment of the present invention, which may be used in the steering wheel assembly 1 according to FIGS. 2 and 3. The pressing mechanism 3 may include a first part 32, a second part 31 movable relative to the first part, and a spring element 33. The spring force of the spring element makes the first part 32 and the second part 31 separate from each other, The second part 31 can occupy an initial position relative to the first part 32 maintained by the spring force of the spring element 33, and can be pressed to a predetermined position relative to the first part while overcoming the spring force of the spring element 33. 32's pressing position. In the pressing position, the pressing mechanism 3 can turn on a car horn. When the pressing force is canceled, under the return action of the spring force of the spring element 33, the second part 31 returns to the initial position, so the car horn ends.

In the embodiment shown in FIG. 4, the first member 32 is configured as a lower sheet member, and the second member 31 is configured as an upper sheet member, the upper sheet member and the lower The sheet parts are stacked on top of each other. For example, the first part 32 and the second part 31 may be respectively stamped from a metal plate, and at least partially coated with a plastic layer. In this embodiment, the first part 32 and the second part 31 respectively have a C-shaped extending direction, and the extending direction includes two side edges and a bottom side connecting the two side edges. Two pairs of first mounting holes 48 are provided on each side, each pair of first mounting holes 48 includes a first mounting hole in the first part 32 and a first mounting hole in the second part 31 Holes, they are aligned with each other. Each pair of first mounting holes 48 is used to receive a first fastening element 5 formed as a screw. As can be seen from FIG. 3, the first mounting hole 48 in the second component 31 may be provided with a stepped surface, and the screw head of the screw can block the stepped surface, thereby defining the second component 31 relative to the first component 32 The initial position. However, it is also conceivable that the initial position is defined by other structural measures, and the first fastening element 5 may only be responsible for fastening the first component 32 to the steering wheel skeleton 11. As a supplement or replacement of screw connection, bonding or welding or snap connection is also conceivable.

In the embodiment shown in FIG. 4, the pressing mechanism 3 includes four spring elements 33, and each spring element 33 is installed between a pair of first mounting holes 48 and is secured by one of the first fastening elements 5. Through. The first component 32, the second component 31, and each spring element 33 can form a pre-assembly unit, wherein the first component 32 and the second component 31 have a limiting structure, and the limiting structure may include The opening 41 in the second part 31 and the hook-like element 42 protruding from the first part 32 in the direction toward the second part 31. The hook-shaped element 42 passes through the opening 41, and the opening 41 and the hook-shaped element 42 on each side are arranged between two pairs of first mounting holes 48 on the corresponding side. In the pre-assembled state of the pre-assembled unit, the hook-shaped part 42 hooks on the edge of the opening 41 in the second part 31, thus limiting the maximum separation position of the second part 31 relative to the first part 32. In the maximum separation position, each spring element 33 is held between the first part 32 and the second part 31. In the pre-assembled state of the pre-assembled unit, the first fastening element 5 can be retained in the first mounting hole 48 in a loss-proof manner. The pre-assembly unit may not include at least one of the first fastening elements 5 or all of the first fastening elements 5.

In the embodiment shown in FIG. 4, the second component 31 has a mating surface 43 on two sides thereof, and a second mounting hole 44 is provided in the mating surface 43. Correspondingly (see FIG. 3 and FIG. 6), the housing part 21 of the airbag 2 has two mating surfaces 23, and each mating surface 23 has a second mounting hole 24 respectively. Therefore, two pairs of mating surfaces 23, 43 and two pairs of second mounting holes 23, 43 are formed. The pair of mating surfaces 23, 43 may be respectively configured as a flanging structure bent from the corresponding base body. The pair of mating surfaces 23, 43 can abut each other in a planar manner. The two pairs of second mounting holes 24, 44 are respectively penetrated by a second fastening element 4 formed as a screw. The inner second mounting hole 23 can be provided with a pressure riveting nut, and the second fastening element 4 can be screwed into the pressure riveting nut. The mating surface 23 may be an integral part of the housing part 21, or may be formed as a separate accessory and the accessory is fixedly connected to the housing part 21. The accessory can be regarded as an integral part of the housing.

In the embodiment shown in FIG. 4, the second component 31 has two positioning pins 45, and the two positioning pins 45 are provided on the free ends of the two sides of the second component 31. Correspondingly (see FIG. 3 and FIG. 8), the housing part 21 of the airbag 2 has two positioning holes 25 into which the positioning pins 45 can be inserted. In FIG. 8, the connection of one of the positioning holes 25 and one of the positioning pins 45 is described in the form of a cross-sectional view along the section A-A in FIG. 7.

In the embodiment shown in FIG. 4, the second component 31 further has two buckle elements 49, and the buckle element 49, the positioning pin 45 and the positioning hole 25 can jointly realize the airbag The positioning of the housing part 21 of 2 relative to the second part 31. The positioning pin 45 may have a encapsulation layer, and the encapsulation layer may be made of elastic rubber or plastic material, for example. The positioning pin 45 may have a ring shoulder 45a on which the housing part 21 of the airbag 2 can rest.

In the embodiment shown in FIG. 4, the first part 32 is provided with an electrical contact element 47, which can be configured as a conductive steel wire; and the second part 31 is provided with three electrical contact elements 46, which can be respectively It is configured as a pressure riveted contact. One of three contacts is respectively provided on two sides and a bottom side of the second part 31. It goes without saying that other numbers of contacts can also be considered. In the initial position, the

electrical contact elements

46, 47 are separated from each other, and in the pressed position, the

electrical contact elements

46, 47 are in contact and conduction, so that the car horn can be activated.

FIG. 5 is a longitudinal sectional view of the steering wheel assembly according to FIG. 2, in which the connection structure of the pressing mechanism 3 on the steering wheel frame 11 by means of the first fastening element 5 is clearly visible. The spring element 33 configured as a coil spring is held between the pair of first mounting holes 48 and is penetrated by the first fastening element 5. The first fastening element 5 is screwed into the threaded hole 12 of the steering wheel frame 11, and the screw head of the first fastening element 5 hooks the second component 31. In the absence of external pressing force, the second member 31 is maintained in an initial position relative to the first member 32 by the spring force of the spring element 31. When an external pressing force is applied to the pressing mechanism 3 via the housing of the airbag 2, the spring element 33 can be compressed, and the second part 31 moves toward the first part 32. The first part 32 and the second part The distance between 31 is reduced, so that the

electrical contact elements

46, 47 are in contact and conduction, and thus the car horn is sounded.

FIG. 6 is a longitudinal sectional view of the steering wheel assembly according to FIG. 2, in which the connection structure of the airbag 2 and the button mechanism 3 can be clearly seen. The housing part 21 of the airbag 2 has two mating surfaces 23 configured as a flanging structure, and a second mounting hole 24 is provided in each mating surface 23. The second component 31 of the pressing mechanism 3 has a corresponding mating surface 43 and a corresponding second mounting hole 44 (see FIG. 4). Here, the mating surface 23 is inside, and the mating surface 43 is outside. It goes without saying that it is also possible that the mating surface 43 is on the inside and the mating surface 23 is on the outside. A pressure riveting nut 6 can be provided on the inner mating surface. The second fastening element 4 formed as a screw passes through the pair of second mounting holes 24, 44 from the outside and is screwed into the rivet nut 6, so that the airbag 2 is directly and mechanically fixed to the pressing mechanism 3. The second part 31 is on. The airbag 2 does not need to be directly mechanically connected to the steering wheel frame 11.

FIG. 7 is a top view of a structural assembly according to an embodiment of the present invention. The door cover 22 is omitted here so that the two positioning holes 25 provided in the housing part 21 can be clearly described. FIG. 8 is a cross-sectional view taken along the section A-A in FIG. 7, and clearly describes the connection structure of a positioning hole 25 and a positioning pin 45 with a rubber coating layer.

The steering wheel assembly 1 shown in the drawings can be assembled particularly easily. First, the pre-assembly unit of the pressing mechanism 3 can be placed in the accommodation space of the steering wheel frame 11; then, each first fastening element 5 can be passed through the pair of first mounting holes 48 and screwed into the steering wheel frame 11 in the threaded hole 12; then, the airbag 2 can be fitted to the positioning pin 45 through the positioning hole 25, so that the airbag 2 is positioned on the pressing mechanism 3; and finally, the second fastening element 4 can be passed through The pair of second mounting holes are screwed into the rivet nut 6. For the purpose of maintenance or repair or replacement, the assembled steering wheel assembly 1 can also be disassembled particularly easily, wherein the disassembly step can be carried out in reverse to the aforementioned assembly step.

In some embodiments, the pressing mechanism 3 may be constituted as an independent integrated component, and the pressing logic of the pressing mechanism is clear, and the pressing mechanism has a simple and reliable structure. The pressing mechanism 3 together with the airbag 2 can be reliably fixed to the steering wheel frame 11 together. In addition, the pressing mechanism 3 together with the airbag 2 can be assembly-friendly, which avoids assembly disadvantages as in the prior art. In addition, the positioning accuracy of the pressing mechanism 3 together with the airbag 2 can be high and easily realized.

Finally, it should be pointed out that the above-mentioned embodiments are only for understanding the present invention, and do not limit the protection scope of the present invention. For those skilled in the art, appropriate modifications can be made on the basis of the foregoing embodiments, and these modifications do not depart from the protection scope of the present invention.

Claims

A structural component for a steering wheel assembly, characterized in that the structural component includes an airbag (2) and a pressing mechanism (3) for a car horn, and the airbag (2) has a shell;

The pressing mechanism (3) includes a first part (32), a second part (31) that can move relative to the first part, and a spring element (33). The spring force of the spring element makes the first part and the The two parts are separated from each other. The second part (31) can occupy an initial position relative to the first part held by the spring force of the spring element, and can be pressed to a predetermined relative position while overcoming the spring force of the spring element. In the pressing position of the first component, in the pressing position, the pressing mechanism (3) can turn on the car horn;

The first component (32) is configured to be directly mechanically connected with the steering wheel skeleton (11) of the steering wheel assembly (1);

The housing of the airbag (2) is configured to be directly mechanically connected with the second component (31), and there is no direct mechanical connection with the steering wheel skeleton (11) of the steering wheel assembly (1) .
The structural component for a steering wheel assembly according to claim 1, wherein the first part (32) is constituted as a lower sheet-like part, and the second part (31) is constituted as an upper sheet Shaped member, the upper sheet member and the lower sheet member are superimposed on each other;

Preferably, the first component (32) and the second component (31) respectively have a partially annular extension;

Preferably, the first part (32) and the second part (31) respectively have a C-shaped or U-shaped extension.
The structural component for a steering wheel assembly according to any one of claims 1 to 2, wherein the first component (32) and the second component (31) at least partially have an overmolding layer ;and / or

The first part (32) and the second part (31) have at least one pair of first mounting holes (48) aligned with each other, and the pair of first mounting holes (48) are used for receiving the first tightening holes (48) correspondingly. A fixing element (5), the first fastening element is configured to fasten the first component (32) to the steering wheel skeleton (11);

Preferably, the first fastening element (5) is a screw configured to be screwed into the threaded hole (12) of the steering wheel frame (11), and the screw head of the screw is configured for the first The stop portion of the two parts (31), wherein in the initial position of the second part (31) relative to the first part (32), the second part (31) is stopped by the screw head;

Preferably, the pressing mechanism (3) includes a plurality of spring elements (33) and a plurality of pairs of first mounting holes (48), and each spring element (33) is installed in one of the pair of first mounting holes (48). And is penetrated by one of the first fastening elements (5).
The structural component for a steering wheel assembly according to any one of claims 1 to 3, wherein the first component (32), the second component (31) and the spring element (33) can form a pre- An assembly unit, wherein the first component (32) and the second component (31) have a limiting structure, and in the pre-assembly state, the limiting structure limits the second component (31) relative to the first component (31) A maximum separation position of a component (32), in which the spring element (33) is held between the first component (32) and the second component (31);

Preferably, the limiting structure includes an opening (41) provided in one of the first part (32) and the second part (31) and a connection between the first part (32) and the second part (31). ) Another protruding hook element (42), the hook element (42) passes through the opening (41).
The structural component for a steering wheel assembly according to any one of claims 1 to 4, wherein the housing of the airbag (2) and the second component (31) have at least one pair of mating Surface (23, 43), the housing of the airbag (2) and the second component (31) are connected to each other through the mating surface (23, 43);

Preferably, the pair of mating surfaces (23, 43) abut each other in a planar manner;

Preferably, the pair of mating surfaces (23, 43) are respectively configured as flanging structures bent from the corresponding base;

Preferably, the pair of mating surfaces (23, 43) have at least a pair of second mounting holes (24, 44), and the pair of second mounting holes (24, 44) are correspondingly fastened Element (4) passes through;

Preferably, the second fastening element (4) is a screw, and the inner second mounting hole among the paired second mounting holes (24, 44) is provided with a rivet nut (6), and The second fastening element (4) can be screwed into the rivet nut (6).
The structural component for a steering wheel assembly according to any one of claims 1 to 5, wherein the second component (31) has a positioning pin (45), and the housing of the airbag (2) The body has a positioning hole (25), and the positioning pin (45) can be inserted into the positioning hole (25);

Preferably, the positioning pin (45) has a rubber coating;

Preferably, the encapsulation layer is made of elastic rubber or plastic material;

Preferably, the second component (31) has a buckle element (49), and the buckle element (49), the positioning pin (45) and the positioning hole (25) jointly realize the airbag (2) ) The positioning of the housing relative to the second component (31).
The structural component for a steering wheel assembly according to any one of claims 1 to 6, wherein the first component (32) and the second component (31) have electrical contact elements (46) that cooperate with each other. 47), in the initial position, the electrical contact elements are separated from each other, and in the pressing position, the electrical contact elements are in contact and conduction, so that the car horn can be activated; and/or

As electrical contact elements (46, 47), the first part (32) has steel wires and the second part (31) has contacts; and/or

The second component (31) has three distributed contacts; and/or

The housing of the airbag (2) includes a door cover (22) and a housing part (21) connected to the door cover. The housing part (21) and the second part (31) are directly mechanically connection.
The structural component for a steering wheel assembly according to any one of claims 1 to 7, wherein the first component (32) and the second component (31) have C-shaped or U-shaped An extension direction, the extension direction includes two side edges and a bottom side connecting the two side edges;

Two pairs of first mounting holes (48) are respectively provided on each side, and each pair of first mounting holes (48) is used to receive a first fastening element (5) formed as a screw. The screw structure Is used to screw into the threaded hole (12) of the steering wheel frame (11), and the screw head of the screw constitutes a stop for the second part (31), wherein the second part (31) is opposite In the initial position of the first component (32), the second component (31) is blocked by the screw head;

The pressing mechanism (3) includes four spring elements (33), each spring element (33) is installed between a pair of first mounting holes and is penetrated by one of the first fastening elements (5);

The first component (32), the second component (31) and the spring element (33) can form a pre-assembly unit, wherein the first component (32) and the second component (31) have a limiting structure, The limiting structure includes an opening (41) provided in one of the first part (32) and the second part (31), and an opening (41) provided in one of the first part (32) and the second part (31). A protruding hook element (42), the hook element (42) passes through the opening (41), the opening (41) and the hook are arranged between the two pairs of first mounting holes on each side Shaped element (42);

The housing of the airbag (2) and the second component (31) have two pairs of mating surfaces (23, 43), and the pair of mating surfaces (23, 43) are respectively configured to be bent from a corresponding base body Folded flanging structure and face each other abutting each other, each pair of mating surfaces (23, 43) has at least one pair of second mounting holes (24, 44) penetrated by the corresponding second fastening element (4) , The second fastening element (4) is a screw, the inner second mounting hole among the paired second mounting holes (24, 44) is provided with a rivet nut (6), and the second The fastening element (4) can be screwed into the rivet nut (6), and the two mating surfaces (43) of the second part (31) are arranged on two sides; and

The second component (31) has two positioning pins (45), the housing of the airbag (2) has two positioning holes (25), and the positioning pins (45) can be inserted into the positioning holes (25). In ), the two positioning pins (45) are arranged on the free ends of the two sides.
A steering wheel assembly for a motor vehicle, the steering wheel assembly includes a steering wheel skeleton (11), characterized in that the steering wheel assembly includes the steering wheel assembly according to any one of claims 1 to 24 The first component (32) of the structural component is directly mechanically connected to the steering wheel frame (11), and the housing of the airbag (2) is connected to the second component (31) of the structural component. ) Is directly mechanically connected and has no direct mechanical connection with the steering wheel frame (11);

Preferably, the steering wheel skeleton (11) has a plurality of threaded holes (12), and the threaded holes are configured to receive screws as the first fastening element (5).
A method for assembling the steering wheel assembly for a motor vehicle according to claim 9, wherein the method comprises the steps:

Place the pre-assembly unit of the pressing mechanism (3) on the steering wheel skeleton (11), wherein the pre-assembly unit includes a first part (32), a second part (31) and a spring element (33);

The first fastening element (5) formed as a screw is passed through the first mounting hole (48) in the pressing mechanism (3) and screwed into the threaded hole (12) of the steering wheel skeleton, so that the first component (32) Directly mechanically connected with the steering wheel frame (11);

Position the housing of the airbag (2) on the pressing mechanism (3) through the positioning pins (45) and positioning holes (25) that are matched with each other; and

Pass the second fastening element (4) formed as a screw through the pair of second mounting holes (23, 43) in the second part (31) and in the housing of the airbag and tighten, The housing of the airbag and the second component (31) are directly mechanically connected.