JPH05278632A - Strut support part structure of vehicle body - Google Patents

Abstract

PURPOSE:To improve the fixing durability of a strut housing while reducing the number of part items or the number of assembling steps. CONSTITUTION:First and second vertical wall surfaces 15, 16 provided on a strut housing 11 are welded in a plurality of spot welding parts P to first and second vertical walls 26, 29 provided on a front pillar 17 side, respectively, whereby the strut hosing 11 is supported in the lower part of the front pillar 17. Thus, when an upward thrust load F is inputted from the strut of a front suspension to the strut housing 11, the load F acts on the spot welding parts P... of each vertical wall surface 15, 16, 26, 29 in the shearing direction. The spot welding parts P have a shearing strength slightly higher than peeling strength, and the shearing strength is 5 times or more the peeling strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a strut support portion of a vehicle body on which a front suspension having struts is mounted.

[0002]

2. Description of the Related Art As a conventional vehicle body structure, the one shown in FIG. 6 has been proposed (see Japanese Utility Model Laid-Open No. 3-15787). That is, the engine room 5 is provided at the front of the vehicle body 50.
1 is provided, a hood ridge 52 is provided at the side of the engine room 51, and a dash lower 53 is provided at the rear.
Is provided. The hood ridge 52 is provided with a wheel house inner 54 and a strut housing 55. The strut housing 55 is a member for supporting a strut of a front suspension (not shown), and a brace 56 is joined to the upper peripheral edge thereof. The brace 56 is connected to the upper surface of a hood ridge reinforcement 57 arranged in the vehicle front-rear direction along the upper edge of the hood ridge 52 by a plurality of spot welds P, and the hood ridge reinforcement 57 is formed. The rear end portion is joined to the front side surface of the front pillar 58.

[0003]

However, in such a conventional vehicle body structure, the strut housing 55 to the strut housing 55 of the front suspension during traveling.
The upward push-up load F is input to, and thus the upward load F is also input to the brace 56. Since the brace 56 is fixed to the upper surface of the hood ridge reinforcement 57 at a plurality of spot welds P ...
The load F acts on the spot welds P ... In the peeling direction. At this time, the spot-welded portion P has high shear strength, but has low peel strength and 1/5 of shear strength.
It is below. Therefore, if the load F acts in the peeling direction for a long period of time as the traveling distance increases, each spot weld P breaks, the brace 56 separates from the hood ridge reinforcement 57, and the strut housing 55.
Cannot be reliably supported over a long period of time.

Further, in order to support the strut housing 55 to which the load F from the strut is inputted, dedicated members such as the hood ridge reinforcement 57 and the brace 56 are indispensable, so that the number of parts and the number of assembling steps are increased. However, this also causes a cost disadvantage.

The present invention has been made in view of the above conventional problems, and has a strut support structure for a vehicle body which improves the fixing durability of the strut housing while reducing the number of parts and the number of assembling steps. It is intended to provide.

[0006]

In order to solve the above problems, in the present invention, a vertical wall surface extending to the side of a strut housing to which a load is input from a front suspension is provided at a lower portion of a front pillar, The vertical wall surface and the vertical wall surface provided on the strut housing are spot-welded to support the strut housing under the front pillar.

[0007]

In the above structure, an upward thrust load is input from the strut of the front suspension to the strut housing during traveling. However, since the vertical wall surface of the strut housing is spot-welded to the vertical wall surface provided under the front pillar, the load acts on the spot-welded portion in the shearing direction. Here, the spot-welded portion has far higher shear strength than the peel strength, and the shear strength is 5 times or more the peel strength. Therefore, even if the load acts in the shearing direction for a long time as the traveling distance increases, there is no possibility that the spot welded portion will break.

Further, since the strut housing is supported by the lower part of the front pillar which is present as a skeletal member of the vehicle body, a separate member for fixing the strut housing is unnecessary, and the number of parts and the number of parts The number of man-hours is reduced.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. In the figure, the direction of the vehicle body is indicated by the arrows "front", "left" and "right". That is, as shown in FIGS. 1 and 2, an engine room 2 is provided in the front part of the vehicle body 1. A side member 3 extending in the front-rear direction of the vehicle body is arranged at the bottom of the engine compartment 2, and a dash lower 5 for partitioning the engine compartment 2 and the compartment 4 is arranged at the rear. A hood ridge 6 is provided on a side portion of the engine room 2, and the hood ridge 6 has a bottom wall 7 whose end portion is coupled to the side member 3, and a side wall 9 standing on the side portion of the bottom wall 7. Is provided.

The hood ridge 6 is provided with a wheel house inner 10 that bulges into the engine room 2 over the bottom wall 7 and the side wall 9, and a strut housing 11. The strut housing 11 has a substantially U-shaped cross section.
The peripheral housing body 12 is formed in a V shape, and the upper housing body 13 is assembled so as to close the upper opening of the peripheral housing 12. The upper housing body 13 is provided with an assembling hole 14 for supporting a strut of a front suspension (not shown).

A first vertical wall surface 15 which is a vertical surface and is substantially vertical is provided at one end portion of the peripheral housing body 12 located on the front side of the vehicle body, and the upper housing body 13 is provided. A second vertical wall surface 16 which is a front-rear direction and which is a substantially vertical surface is provided at an end portion on the vehicle body exterior side. The other end of the peripheral housing body 12 is shown in FIG.
As shown in FIG. 5, it is connected to the dash lower 5.

On the other hand, the front pillar 17 is a member that stands up obliquely along both sides of a front window (not shown), and is constructed by joining a pillar inner 19 and a pillar outer 20 as shown in FIG. There is. The lower portion of the pillar inner 19 has the structure shown in FIG. 4, and includes a main pillar portion 21 extending in the vertical direction and a sub-pillar having an upper end integrated with the main pillar portion 21 and branched in the front direction of the vehicle body. And a section 22. The sub-pillar part 2
The lower end of 2 has a lateral pillar portion 23 extending in the front direction of the vehicle body.
It is integrated with the main pillar portion 21 through.

A vertical pillar portion 24 is integrally formed at the tip of the horizontal pillar portion 23, and a pillar inner 19 is assembled with an air box 30 between the vertical pillar portion 24 and the main pillar portion 21. In this case, the drain member 25 attached to the air box 30 is inserted (shown by a chain line). The vertical pillar portion 24 has a substantially U-shaped cross-section that is open to the side of the vehicle body, and has a first vertical wall surface 26 that is provided in the vertical direction at the front end portion.

Further, the water draining member 25 has a notch 36 formed on one side wall, but when the notch 36 is closed by the dash lower 5, the notch 36 is substantially opened to the side of the vehicle body. It has a substantially U-shaped cross section, and its rear surface is curved at the lower end. Further, the water draining member 25 and the vertical pillar portion 24 are vertically extended to the side of the strut housing 11 as shown in FIGS. The lower end lateral pillar portion 27 is integrated with the lower end lateral pillar portion 27 along the peripheral edge thereof, and a second vertical wall surface 29 is formed on the lower end lateral pillar portion 27.

As clearly shown in FIG. 1, the first and second vertical wall surfaces 15 and 16 provided on the strut housing 11 side are the first and second vertical wall surfaces 15 and 16 provided on the front pillar 17 side. The wall surfaces 26 and 29 are respectively welded at a plurality of spot welded portions P, whereby the strut housing 11 is supported on the lower portion of the front pillar 17.

On the other hand, the air box 30 shown in FIG.
The upper part of the dash lower 5 is composed of a dash upper 31 connected to the vehicle compartment 4 side, the cowl top 32 arranged on the upper part of the dash upper 31 and the dash lower 5, and the like. The dash upper 31 has a weir 33 at the peripheral portion.
A blower suction port 34 surrounded by is provided, and a step portion 35 is formed over the entire length thereof.
Then, the flange 38 formed on the lower edge of the step portion 35
Is sandwiched between the side surface of the cutout portion 36 provided in the drainage member 25 and the dash lower 5, so that the rainwater flowing through the step portion 35 flows down into the drainage member 25.

Further, the air box 30 and the pillar inner 1
The reference numeral 9 is assembled by abutting the pillar inner 19 on the end of the air box 30 so that the notched corner 40 provided on the end of the dash upper 31 matches the receiving portion 41 provided on the pillar inner 19. .. As a result, the end opening of the air box 30 is closed by the horizontal pillar portion 23 of the pillar inner 19, and as shown by the chain line in FIG. 4 described above, between the vertical pillar portion 24 and the main pillar portion 21, The water draining member 25 is inserted.

As shown in FIG. 5, the pillar outer 20 joined to the pillar inner 19 is provided with a drain hole 39 communicating with the lower end of the drain member 25. Therefore, it enters the air box 30 and the step portion 3
The rainwater flowing laterally along the vehicle body 5 flows down into the water draining member 25, and then is drained to the outside through the water draining hole 39.

In this embodiment having the above-described structure, the upward thrust load F from the strut of the front suspension to the strut housing 11 during traveling (see FIG. 1).
(Reference) is input. However, strut housing 1
1, the first and second vertical wall surfaces 15 and 16 are spot-welded to the first and second vertical wall surfaces 26 and 29 provided on the front pillar 17 side.
The load F acts in the shearing direction on the spot-welded portions P of 6, 26, 29. Here, the spot-welded portion P is much higher in shear strength than the peel strength, and the shear strength is 5 times or more of the peel strength.
Even if the load acts in the shearing direction for a long period as the traveling distance increases, the spot welded portion P is not easily broken and the strut housing 11 can be reliably supported for a long period. ..

Further, the first and second vertical wall surfaces 26, 29 provided on the front pillar 17 side and the first and second vertical wall surfaces 15, 1 provided on the strut housing 11 side.
6 and the structure of supporting the strut housing 11 by the rigidity of the front pillar 17 which is a skeletal member of the vehicle body 1, the hood ridge rain force 57 provided to support the strut housing 11 is provided. A dedicated member such as a brace 56 or the like (see FIG. 6) is unnecessary. Therefore, by eliminating these parts, the number of parts and the number of assembling steps can be reduced, thereby reducing the cost.

[0021]

As described above, according to the present invention, the vertical wall surface extending to the side of the strut housing is provided at the lower portion of the front pillar, and the vertical wall surface and the vertical wall surface provided on the strut housing are spot-welded. I did it.
Therefore, it is possible to improve the durability of the spot welded portion and the fixing durability of the strut housing by applying the upward thrusting load input from the Freon suspension in the shearing direction of the spot welded portion.

Further, since the vertical wall surface provided on the front pillar side and the vertical wall surface provided on the strut housing side are spot-welded to support the strut housing by the rigidity of the front pillar which is a frame member of the vehicle body, The dedicated member for the hood ridge reinforcement and the brace, which was provided to support the strut housing, becomes unnecessary. Therefore, by eliminating these parts, it is possible to reduce the number of parts, the weight, and the number of assembling steps, thereby reducing the cost. as a result,
It is possible to improve the fixing durability of the strut housing while reducing the number of parts and the number of assembling steps.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a vehicle body showing an embodiment of the present invention.

FIG. 2 is a partial perspective view of a vehicle body on the side different from FIG. 1 of the same embodiment.

FIG. 3 is a view on arrow A in FIG.

FIG. 4 is an exploded view of the same embodiment.

5 is a view on arrow B of FIG. 3. FIG.

FIG. 6 is a perspective view showing a conventional strut housing support structure.

[Explanation of symbols]

 1 Vehicle Body 11 Strut Housing 15 First Vertical Wall Surface 16 Second Vertical Wall Surface 17 Front Pillar 26 First Vertical Wall Surface 29 Second Vertical Wall Surface P Spot Weld

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[Procedure amendment]

[Submission date] February 16, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

FIG. 4 is an exploded view of the same embodiment.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

Claims (1)

[Claims] 1. A vertical wall surface that extends to the side of a strut housing to which a load is input from the front suspension is provided below the front pillar, and the vertical wall surface and the vertical wall surface provided on the strut housing are spot-welded. A strut support structure for a vehicle body, wherein a strut housing is supported at a lower portion of a front pillar.