JPH034622Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology belongs to the field of structural technology for front bodies whose rigidity is increased by interposing reinforcing members.

Therefore, in this invention, a cowl brace is used as a reinforcing member between a spring support that is fixedly installed inside the apron top member and supports the upper part of the suspension, and a cowl top that is joined at both ends to the base of the apron top member. This is an invention related to the front body structure of an automobile, in particular,
The cowl brace is formed into a substantially U-shape in plan view, and its base surface overlaps the upper surface of the cowl top, apron top member, and spring support, and its base extends to the side ends of the cowl top and apron top member. Further, a flange is formed to extend over the entire inside of the recess of the cowl brace, which is formed in a substantially U-shape, and the flange is overlapped with the sides of the cowl top, apron top member, and spring support, and the cowl brace is formed. This invention relates to a front body structure of an automobile in which the appropriate overlapping surfaces of the cowl top, apron top member, and spring support are fixed.

<Conventional technology> In recent years, when developing automobiles, vibration, noise,
In addition, steering stability is considered to be one of the major issues, and various countermeasures have been devised and implemented to deal with this issue.

Conventionally, vibration, noise, and
It is known that handling stability is extremely dependent on the rigidity of the body, and various measures have been taken to improve this body rigidity, such as adopting many closed cross-section structures in various parts of the body, or adding reinforcing members. has been done.

Therefore, in the front body of many passenger cars larger than medium-sized cars, a cowl top is constructed between a pair of apron top members that run toward the front and rear of the vehicle, and each apron top member and cowl top are connected to other members. It has a closed cross-sectional structure to maintain its rigidity.

However, generally, a spring support, a spring support plate, etc. are attached to the inside of the apron top member to support the upper end of the suspension, and large vibrations and shocks are frequently applied to the apron top member while the car is running. Therefore, in actual use, this alone will not improve the body rigidity,
Also, it was not possible to maintain sufficient steering stability.

To deal with this, conventional methods have been used in which the cowl top is extended to the front of the vehicle and directly fixed to the spring support, or, for example, as disclosed in Japanese Utility Model Publication No. 58-6783, the upper surface of the spring support and the center of the cowl top are A mode in which braces are installed on both sides has been devised.

<Problems to be solved by the invention> However, in the above-mentioned conventional embodiment in which the cowl top extends toward the front of the vehicle and is directly fixed to the spring support, the cowl top occupies a large amount of space extending from below the windshield glass to the vicinity of the spring support. As a result, it was difficult to install the clutch master cylinder, brake booster, etc., and the problem was that it could not be used in practice.

In addition, the above-mentioned conventional mode in which a brace is installed on the upper surface of the spring support and the center side of the cowl top,
Since the brace occupies a large part of the corner area consisting of the cowl top and the apron top member, there is a problem in that it reduces work efficiency when replacing the engine or other parts.

Furthermore, since the brace has a structure with only one vertical bend and only two planes of joint, there is a problem that both the rigidity of the brace alone and the torsional rigidity of the joint where the brace is joined are insufficient. There were also some points.

The purpose of this invention is to solve the problems of the automobile front body structure based on the above-mentioned conventional technology as a technical problem, and to ensure that the body rigidity is improved by attaching lean and simple parts to predetermined parts of the body. It is an object of the present invention to provide an excellent front body structure for an automobile that increases the engine capacity and makes effective use of the space inside the engine, thereby benefiting the field of parts utilization in the automobile industry.

<Means/effects for solving the problem> In accordance with the above-mentioned purpose, the structure of this invention, which is based on the scope of the above-mentioned utility model registration claim, is to solve the above-mentioned problem by forming the cowl brace into an abbreviated U-shape in plan view. An integral flange is formed to extend across the entire inner recess formed in a substantially U-shape, and includes a cowl top, an apron top member whose base is joined to the end of the cowl top, and an apron top member whose base is joined to the end of the cowl top. The base surface of the cowl brace is overlapped with the upper surface of the spring support which is fixed inside and supports the upper part of the suspension, and at the same time the flange surface of the cowl brace is overlapped with the cowl top, the apron top member, and each side of the spring support. , without using a large space in the engine room, the cowl brace is supported by a strong structure with adjacent three-plane circles perpendicular to each other, and furthermore, the base of the cowl brace extends to the side edges of the cowl top and apron top member. A technical measure has been taken to maintain the rigidity of the corner portion which is formed to extend and is polymerized, and which is sandwiched between the cowl top and the apron top member.

<Example> Next, an example of this invention will be described below based on FIGS. 1 to 5.

Reference numeral 1 designates the front body of an automobile of this invention, in which a cowl top outer panel 3 and a cowl top inner panel 4, which are joined to each other and form a closed cross-section structure, are arranged at the lower front of a windshield glass 2. In front of both ends of the inner panel 4, apron top members 5, 5 are provided that run in the longitudinal direction of the vehicle.

A cowl top inner side panel 6 connected to a front pillar (not shown) is interposed on both sides of the cowl top outer panel 3 and the cowl top inner panel 4, and a cowl top inner side panel 6 is installed on the lower surface of the end of the cowl top inner panel 4 and extends downward. The upper end of the cowl side panel 7 to be exposed is joined to the lower surface of the side end of the cowl top outer panel 3 and the outer surface of the cowl side panel 7.
The cowl top outer panel 3, the cowl top inner side panel 6, the cowl side panel 7, and the cowl top side panel 9 form a closed cross-sectional structure.

Further, the apron top members 5 in front of both sides of the cowl top outer panel 3 are formed into a substantially L-shaped cross section, and the cowl top outer panel 3 and the cowl top member 5 are formed in a substantially L-shaped cross section. The cowl top side panel 9, whose rear portion is joined to the side panel 7, is joined to form a closed cross-sectional structure.

On the upper surface of the apron top member 5 on the engine room 8 side, and on the side thereof, there is a spring support 1 that supports the upper part of the steering wheel (not shown).
0 is fixed.

Furthermore, a cowl top outer panel 3, an apron top member 5, and a spring support 10
A cowl brace 11 is installed in the portion, and the cowl brace 11 is formed in a substantially U-shape in plan.
A flange 12 is formed to extend over the entire inner concave portion formed in a substantially U-shape, and during the above-mentioned installation, the base surface 13 of the cowl brace 11 is attached to the cowl top outer panel 3 and the apron top member 5. , and the upper surfaces of the spring support 10 as appropriate, and at the same time, the flange 12 surface is welded to the cowl top outer panel 3, the apron top member 5, and the spring support 10.
It is also spot welded on each side of the board as appropriate.

Furthermore, the base surface 13 of the cowl brace 11 is formed to extend toward the outside of the vehicle, and is overlapped and fixed over the upper surfaces of each end of the cowl top outer panel 3 and the apron top member 5, which form a closed cross-sectional structure as described above. has been done.

In the above configuration, when the front body 1 is actually adopted and the vehicle is driven on the road, the apron top members 5 disposed on both sides of the vehicle have a Although road vibrations and various other vibrations and shocks are applied through the spring support 10, since the spring support 10 and the cowl top outer panel 3 are connected to the apron top member 5 by the cowl brace 11, The stress applied from the spring support 10 to the apron top member 5 is distributed and supported by the cowl top outer panel 3 via the cowl brace 11, and the stress applied to the apron top member 5 is distributed between the cowl top outer panel 3, the apron top member 5, and the spring. support 10
are supported and fixed by two surfaces, the base surface 13 of the cowl brace 11 and the flange 12 surface, respectively.
Rigidity is definitely increased.

Furthermore, the base surface 13 of the cowl brace 11 is connected to the cowl top outer panel 3 and the apron top member 5.
Since it is formed so as to extend to the side end of the apron and overlap the upper surface of the part forming a closed cross-sectional structure, the rigidity of the corner part sandwiched between the cowl top outer panel 3 and the apron top member 5 is also ensured. be enhanced.

Further, the cowl brace 11 has a base surface 13 formed in a substantially U-shape in plan view, and a flange 12 formed in the inner recessed portion of the base surface 13.
Not only is the rigidity of engine 1 itself maintained high, but the space occupied within engine room 8 is also minimized.

It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments, and various other embodiments can be adopted.

<Effects of the invention> As described above, according to this invention, body rigidity is reliably increased by installing the cowl brace, which has a simple structure and no waste, at appropriate locations between the apron top member and the spring support.
This has the excellent effect of making it possible to effectively utilize the space within the engine room.

That is, the cowl brace is formed into a substantially U-shape in plan view, and an integral flange is formed extending throughout the inner recess formed in the substantially U-shape, and the upper surface of the cowl top, apron top member, and spring support is formed. Polymerize the base surface of the cowl brace, and at the same time polymerize the flange surface of the cowl brace.
By polymerizing each side of the apron upper member and the spring support, the stress applied to the apron upper member by the spring support can be dispersed and supported by the cowl top, and the base surface of the cowl brace is The apron top member is formed so as to extend to the side edge of the apron top member and is polymerized, which has the excellent effect of more reliably increasing the rigidity of the corner section sandwiched between the cowl top and the apron top member. It is played.

Furthermore, since the cowl brace is formed in a substantially U-shape when viewed from above, the space occupied by the cowl brace in the engine room can be minimized, improving work efficiency when replacing parts in the engine room. Also, the excellent effect of making effective use of the inside of the engine room is achieved.

[Brief explanation of the drawing]

The drawing is an explanatory diagram of one embodiment of this invention,
Figure 1 is a perspective view, Figure 2 is a plan view, Figure 3 is a second
Figure - sectional view, Figure 4 is Figure 2 - sectional view,
FIG. 5 is a sectional view of FIG. 2. 5...Apron top member, 10...Spring support, 3...Cowl top, 11...Cowl brace, 1...Front body of automobile, 12...Flange.

Claims (1)

[Scope of utility model registration request] In the front body structure of an automobile in which a cowl brace is interposed between a spring support that is fixedly installed inside an apron upper member and supports the upper part of the suspension and a cowl top that is provided at the base of the apron upper member, the above-mentioned cowl brace is provided. The base surface is formed in a substantially U-shape in plan view, and the base surface is overlapped with the upper surface of the cowl top, the apron upper member, and the spring support, and the base end of the substantially U-shaped base surface is formed with the cowl top. It extends to the side edge of the apron atupa member and is polymerized,
Further, a flange is formed extending over the entire inside of the cowl brace formed in a substantially U-shape, and the flange is overlapped with the side surface of the cowl top, apron top member, and spring support. body structure.