JP2021014207A - Vehicle body panel structure - Google Patents

Abstract

To provide a vehicle body panel structure capable of improving the rigidity of the top of a damper housing while suppressing an increase in the weight thereof compared to the conventional technique and maintaining form accuracy.SOLUTION: A vehicle body panel structure 1 includes a damper base 41 constituting the top of a damper housing 4. The damper base 41 includes: an upper wall part 41a connected with a damper 5; a lower wall part 41b positioned below the upper wall part 41a; and a peripheral wall part 41c connecting the upper wall part 41a with the lower wall part 41b. The vehicle body panel structure 1 includes a dashboard upper 21 at least a part of which is arranged at a position corresponding to a boundary part 41d between the lower wall part 41b and the peripheral wall part 41c. A coupling member 7 is arranged between the boundary part 41d of the damper base 41 and the dashboard upper 21, and the damper base 41 and the dashboard upper 21 are coupled to each other through the coupling member 7.SELECTED DRAWING: Figure 2

Description

The present invention relates to a vehicle body panel structure.

As a support structure for a vehicle suspension, one in which the upper part of a damper is supported by a damper housing is known (for example, Patent Document 1).

Patent Document 1 discloses a configuration in which a mount rubber is arranged between a damper base of a damper housing and a damper. The damper base has an upper wall portion to which the damper is connected, a lower wall portion located below the upper wall portion, and a peripheral wall portion connecting the upper wall portion and the lower wall portion.

Jitsufuku No. 2-12081

By the way, the boundary portion between the peripheral wall portion and the lower wall portion of the damper base is easily deformed because the stress due to the input load generated through the damper, for example, is concentrated when the vehicle is running.
If the damper base is made thicker in order to suppress the deformation of the damper base, the rigidity of the boundary portion is improved, but the weight of the entire damper base is increased. If a bead or stiffener is provided at the boundary in order to improve the rigidity, the shape accuracy of the damper base may be impaired.

An object of the present invention is to provide a vehicle body panel structure capable of reinforcing the boundary portion of a damper base while suppressing an increase in weight and maintaining shape accuracy as compared with the prior art.

In order to solve the above problems, the vehicle body panel structure according to the present invention adopts the following configuration.
(1) The vehicle body panel structure according to the present invention (for example, the vehicle body panel structure 1 of the embodiment) constitutes the upper part of the damper housing (for example, the damper housing 4 of the embodiment), and the damper (for example, the damper 5 of the embodiment) constitutes. ) Is connected to the upper wall portion (for example, the upper wall portion 41a of the embodiment), the lower wall portion located below the upper wall portion (for example, the lower wall portion 41b of the embodiment), and the upper wall portion. A damper base having a peripheral wall portion (for example, the peripheral wall portion 41c of the embodiment) connecting the portion and the lower wall portion (for example, the damper base 41 of the embodiment), and the lower wall portion and the peripheral wall portion. A reinforcing member (for example, the reinforcing member 21A of the embodiment) having at least a part thereof arranged at a position corresponding to the boundary portion (for example, the boundary portion 41d of the embodiment) is provided, and the reinforcing member and the damper base are provided. A connecting member (for example, the connecting member 7 of the embodiment) that connects the reinforcing member and the damper base is arranged between the boundary portion.

(2) In the vehicle body panel structure described in (1) above, the connecting member may be an adhesive having fluidity before curing (for example, the adhesive 7a of the embodiment).

(3) In the vehicle body panel structure according to (1) or (2) above, the reinforcing member and the peripheral wall portion are separated from each other, and an opening (for example, an embodiment) is provided between the reinforcing member and the peripheral wall portion. The opening 60) may be formed.

(4) In the vehicle body panel structure according to any one of (1) to (3) above, a joint portion (for example, the joint portion 21b of the embodiment) to which the reinforcing member and the damper base are joined is formed. You may have.

(5) The vehicle body panel structure according to any one of (1) to (4) above includes a dashboard (for example, the dashboard 2 of the embodiment) that separates the vehicle interior and the engine compartment, and the reinforcing member. May consist of a portion of the dashboard (eg, the dashboard upper 21 of the embodiment).

According to the above (1), a connecting member for connecting the reinforcing member and the damper base is arranged between the reinforcing member and the boundary portion of the damper base. As a result, at the boundary portion of the damper base, the damper base and the reinforcing member are integrated by the connecting member, and a sandwich structure is formed. At the boundary where the sandwich structure is formed, the rigidity of the damper base is improved. Therefore, the boundary portion of the damper base can be locally reinforced while suppressing the increase in weight as compared with the case where the damper base is made thick.
According to the above configuration, it is not necessary to make the plate thicker in order to improve the rigidity of the damper base, so that the damper base can be easily formed by, for example, press working.
According to the above configuration, for example, it is not necessary to provide a bead or stiffener at the boundary portion of the damper base. Therefore, the boundary portion of the damper base can be reinforced while maintaining the shape accuracy.

In the case of (2) above, the connecting member is an adhesive having fluidity before curing. Therefore, when the adhesive has a viscosity that does not spread when wet, when the adhesive is applied to the boundary portion of the damper base, the adhesive is retained at the boundary portion. After applying the adhesive, the damper base and the reinforcing member can be bonded by sandwiching the adhesive between the damper base and the reinforcing member. Therefore, in the process of attaching the damper base and the reinforcing member, the adhesive which is the connecting member can be easily arranged.
The adhesive, which is a connecting member, flows between the boundary portion of the damper base and the reinforcing member in accordance with the shape of the damper base and the reinforcing member. As a result, the damper base and the reinforcing member can be reliably joined with a simple operation.
The connecting member can be easily arranged by simply injecting an adhesive which is a connecting member between the boundary portion of the damper base and the reinforcing member.

In the case of (3) above, the peripheral wall portion of the damper base and the reinforcing member are separated from each other, and an opening is formed between the reinforcing member and the peripheral wall portion. As a result, a space is formed between the boundary portion and the reinforcing member, and a connecting member for connecting the damper base and the reinforcing member can be arranged. Therefore, after the damper base and the reinforcing member are attached, the connecting member can be easily arranged only by injecting an adhesive which is a connecting member between the boundary portion and the reinforcing member.

In the case of (4) above, it has a joint where the reinforcing member and the damper base are joined. The input load from the damper transmitted to the damper base is efficiently distributed to the reinforcing member via the joint. Therefore, the stress concentration at the boundary of the damper base is suppressed.
Since the number of joints to the reinforcing member of the damper base is increased, the rigidity of the entire damper base is also improved.

In the case of (5) above, the reinforcing member is composed of a part of the dashboard that separates the passenger compartment and the engine compartment. As a result, the input load transmitted from the damper to the damper base is efficiently distributed to the dashboard. Therefore, the stress concentration at the boundary of the damper base is suppressed.
According to the above configuration, since the reinforcing member is the dashboard upper, it is not necessary to newly provide the reinforcing member as a separate member. Therefore, it is possible to suppress an increase in the weight of the vehicle body due to reinforcement.
By simply arranging a connecting member between the damper base and the dashboard upper, the boundary portion of the damper base can be easily reinforced with a simple configuration.

It is a perspective view of the front of the vehicle body panel in embodiment of this invention. It is sectional drawing which follows the line II-II of FIG. It is a top view of the damper housing.

(Structure of Invention)
Hereinafter, the vehicle body panel structure 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 3.
FIG. 1 is a perspective view of the front of the vehicle body panel according to the embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
FIG. 3 is a plan view of the damper housing.
In the following description, the front-rear, up-down, left-right directions correspond to the front-back, up-down, left-right directions in the vehicle unless otherwise specified.

As shown in FIG. 1, the vehicle body panel structure 1 of the present embodiment includes a dashboard 2, an upper member 3, and a damper housing 4. In the vehicle according to the present embodiment, the vehicle compartment and the engine compartment are separated by the dashboard 2. The rear side is the passenger compartment and the front side is the engine compartment across the dashboard 2.

The dashboard 2 includes a dashboard lower 20 and a dashboard upper 21. The dashboard lower 20 is a plate-shaped member facing in the front-rear direction, and separates the vehicle interior from the engine compartment. The dashboard upper 21 is a part of the dashboard 2 and constitutes the upper part of the dashboard 2. A flange-shaped portion that projects forward is provided on the upper portion of the dashboard upper 21.

A pair of upper members 3 are arranged outside the dashboard upper 21 in the vehicle width direction. The upper member 3 includes a horizontal member 30 and a curved member 31. The horizontal member 30 is arranged at a height corresponding to the dashboard upper 21. The horizontal member 30 extends along the front-rear direction. A curved member 31 is connected to the front end of the horizontal member 30. The curved member 31 is curved downward from the rear to the front.

The damper housing 4 is arranged inside the upper member 3 in the vehicle width direction. The damper housing 4 is joined to the upper member 3. The damper housing 4 includes a housing main body 40 and a damper base 41. The housing main body 40 is open outward in the vehicle width direction. The damper base 41 is joined to the upper part of the housing main body 40.

As shown in FIG. 2, the damper base 41 includes an upper wall portion 41a to which the damper 5 is connected, a lower wall portion 41b located below the upper wall portion 41a, and an upper wall portion 41a and a lower wall portion 41b. It has a peripheral wall portion 41c and a peripheral wall portion 41c for connecting the above. The peripheral wall portion 41c has a tapered shape that tapers from the lower wall portion 41b to the upper wall portion 41a.
The damper 5 is connected to the damper base 41 from below via the mount rubber 6. The mount rubber 6 is fitted to the upper wall portion 41a and the peripheral wall portion 41c of the damper base 41 from below. The outer shape of the mount rubber 6 in contact with the peripheral wall portion 41c of the damper base 41 is a tapered shape corresponding to the inner shape of the peripheral wall portion 41c of the damper base 41.
The upper part of the damper 5 is covered with a mount rubber 6. The damper 5 includes a damper rod 50. A stopper plate 51 for restricting the downward movement of the damper 5 is provided at the upper end of the damper rod 50. The stopper plate 51 is fixed to the damper rod 50 from above by the fixing nut 52.

The dashboard upper 21 overlaps the damper base 41 from above. The dashboard upper 21 has a relief portion 21a at a position corresponding to the damper base 41. The relief portion 21a has a hole shape that penetrates the dashboard upper 21 in the vertical direction. The relief portion 21a is formed in the shape of a cross-section hat having a hole in the center. The damper base 41 projects from the relief portion 21a.

Here, the relief portion 21a of the dashboard upper 21 and the peripheral wall portion 41c of the damper base 41 are separated from each other, and an opening 60 is formed between the relief portion 21a of the dashboard upper 21 and the peripheral wall portion 41c of the damper base 41. doing. A coupling member 7 is arranged between the boundary portion 41d of the damper base 41 and the relief portion 21a of the dashboard upper 21. In this embodiment, the coupling member 7 is an adhesive 7a that has fluidity before curing. The adhesive 7a, which is the bonding member 7, is applied or injected, placed, and then cured to firmly bond the damper base 41 and the dashboard upper 21. The dashboard upper 21 has a function as a reinforcing member 21A.
The viscosity of the adhesive 7a selected as the bonding member 7 and having fluidity before curing can be selected according to the process and equipment for arranging the adhesive 7a.

As shown in FIG. 3, the damper base 41 and the dashboard upper 21 are joined by spot welding. The joint portion 21b by spot welding is provided outside the position where the coupling member 7 is arranged when viewed from the central axis direction of the damper rod 50. The joint portion 21b of the present embodiment is arranged on the circumference around the central axis when viewed from the central axis direction of the damper rod 50.

(Action and effect)
Therefore, according to the above-described embodiment, the following actions and effects can be obtained.
In the present embodiment, a connecting member 7 for connecting the dashboard upper 21 and the damper base 41 is arranged between the dashboard upper 21 and the boundary portion 41d of the damper base 41. As a result, at the boundary portion 41d of the damper base 41, the damper base 41 and the dashboard upper 21 are integrated by the coupling member 7 to form a sandwich structure. At the boundary portion 41d in which the sandwich structure is formed, the rigidity of the damper base 41 is improved. Therefore, the boundary portion 41d of the damper base 41 can be locally reinforced while suppressing an increase in weight as compared with the case where the damper base 41 is made thick.
According to the above configuration, it is not necessary to increase the thickness of the damper base 41 in order to improve the rigidity, so that the damper base 41 can be easily formed by, for example, press working.
According to the above configuration, for example, it is not necessary to provide a bead or stiffener at the boundary portion 41d of the damper base 41. Therefore, the boundary portion 41d of the damper base 41 can be reinforced while maintaining the shape accuracy.

The bonding member 7 is an adhesive 7a that has fluidity before curing. Therefore, when the adhesive 7a has a viscosity that does not spread by wetting, when the adhesive 7a is applied to the boundary portion 41d of the damper base 41, the adhesive 7a is held at the boundary portion 41d. After applying the adhesive 7a, the damper base 41 and the dashboard upper 21 can be adhered by sandwiching the adhesive 7a between the damper base 41 and the dashboard upper 21. Therefore, in the step of attaching the damper base 41 and the dashboard upper 21, the adhesive 7a which is the connecting member 7 can be arranged.
The adhesive 7a, which is the bonding member 7, flows between the boundary portion 41d of the damper base 41 and the dashboard upper 21 following the shape of the damper base 41 and the dashboard upper 21. As a result, the damper base 41 and the dashboard upper 21 can be reliably joined with a simple operation.
The coupling member 7 can be easily arranged by simply injecting the adhesive 7a, which is the coupling member 7, between the boundary portion 41d of the damper base 41 and the dashboard upper 21.

The peripheral wall portion 41c of the damper base 41 and the relief portion 21a of the dashboard upper 21 are separated from each other, and an opening 60 is formed between the relief portion 21a of the dashboard upper 21 and the peripheral wall portion 41c of the damper base 41. .. As a result, a space is formed between the boundary portion 41d and the dashboard upper 21, and the connecting member 7 that connects the damper base 41 and the dashboard upper 21 can be arranged. Therefore, after the damper base 41 and the dashboard upper 21 are attached, the connecting member 7 can be easily arranged only by injecting the adhesive 7a which is the connecting member 7 between the boundary portion 41d and the dashboard upper 21. ..

It has a joint portion 21b to which the dashboard upper 21 and the damper base 41 are joined. The input load transmitted from the damper 5 to the damper base 41 is efficiently distributed to the dashboard upper 21 via the joint portion 21b. Therefore, the stress concentration at the boundary portion 41d of the damper base 41 is suppressed.
Since the number of joints of the damper base 41 to the dashboard upper 21 is increased, the rigidity of the entire damper base 41 is also improved.

The reinforcing member 21A is composed of a dashboard upper 21 which is a part of the dashboard 2 that separates the vehicle interior and the engine compartment. As a result, it is not necessary to newly provide a reinforcing member as a separate member. Therefore, it is possible to suppress an increase in the weight of the vehicle body due to reinforcement.
By simply arranging the connecting member 7 between the damper base 41 and the dashboard upper 21, the boundary portion 41d of the damper base 41 can be easily reinforced with a simple configuration.

Although preferable examples of the present invention have been described above, the present invention is not limited to these examples. Configurations can be added, omitted, replaced, and other modifications without departing from the spirit of the present invention. The present invention is not limited by the above description, but only by the appended claims.

In the present embodiment, the connecting member 7 is arranged between the boundary portion 41d of the damper base 41 and the dashboard upper 21, but a reinforcing member for arranging the connecting member 7 may be provided separately from the dashboard upper 21. Good. However, by using the dashboard upper 21 as the reinforcing member 21A, it is possible to suppress an increase in weight as compared with the case where the reinforcing member is provided as a member separate from the dashboard upper 21, which is superior to the present embodiment. There is.

The coupling member 7 does not need to be arranged over the entire boundary portion 41d of the damper base 41. The connecting member 7 may be arranged at a part of the boundary portion 41d of the damper base 41. However, when the coupling member 7 is arranged over the entire boundary portion 41d, the damper base 41 and the coupling member 7 are more firmly arranged than when the coupling member 7 is arranged in a part of the boundary portion 41d. This embodiment has an advantage in that it can be combined with the dashboard upper 21.

In the present embodiment, the coupling member 7 is an adhesive 7a having fluidity before curing, but may be a hard resin material or the like which is adhesively fixed to the damper base 41 and the dashboard upper 21. However, when the bonding member 7 is an adhesive 7a having fluidity before curing, it is not necessary to mold the bonding member 7 in a separate step, which is superior to the present embodiment in terms of improving the biotechnique. There is sex.

In addition, it is possible to replace the constituent elements in the above-described embodiment with well-known constituent elements as appropriate without departing from the spirit of the present invention, and the above-mentioned modifications may be appropriately combined.

1 Body panel structure 2 Dashboard 4 Damper housing 5 Damper 7 Coupling member 7a Adhesive 21 Dashboard upper (part of dashboard)
21A Reinforcing member 21b Joint 41 Damper base 41a Upper wall 41b Lower wall 41c Peripheral wall 41d Boundary 60 Opening

Claims (5)

An upper wall portion that constitutes the upper part of the damper housing and to which the damper is connected, a lower wall portion that is located below the upper wall portion, and a peripheral wall portion that connects the upper wall portion and the lower wall portion. With a damper base,
A reinforcing member, at least a part of which is arranged at a position corresponding to a boundary portion between the lower wall portion and the peripheral wall portion, is provided.
A vehicle body panel structure characterized in that a connecting member for connecting the reinforcing member and the damper base is arranged between the reinforcing member and the boundary portion of the damper base. The vehicle body panel structure according to claim 1, wherein the connecting member is an adhesive having fluidity before curing. The vehicle body panel structure according to claim 1 or 2, wherein the reinforcing member and the peripheral wall portion are separated from each other and an opening is formed between the reinforcing member and the peripheral wall portion. .. The vehicle body panel structure according to any one of claims 1 to 3, further comprising a joint portion to which the reinforcing member and the damper base are joined. The vehicle body panel structure according to any one of claims 1 to 4, further comprising a dashboard that separates the vehicle interior and the engine compartment, and the reinforcing member is composed of a part of the dashboard. ..

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