JPS6299266A - Front car body structure of car - Google Patents

Abstract

PURPOSE:To enable prevention of deformation of a car body, by a method wherein a lock piece, having a front end formed in the shape of a hook, is attached to a wiper reinforcement secured to a cowl part, and the lock piece is engaged with a lock part, attached to the rear part of a bonnet, upon collision. CONSTITUTION:The rear end part of a lock piece 9 is secured to the side wall of a wiper reinforcement 8, the lock piece 9 is extended toward the front of a vehicle, and a front end part 10 is formed in the shape of an up bent hook. Meanwhile, an opening 17, into which the front end part of the lock piece 9 is inserted during closing of a bonnet, is formed in the rear part of an inner panel 12 of a bonnet 11. When, upon collision, the bonnet 11 is bent in the direction of an arrow mark A for deformation, an opening 17 of the inner panel 12 is engaged with the hook part of the lock piece 9, and this enables prevention of deformation of a cowl part 1 to minimum.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a front body structure of a vehicle B, and particularly to a front body structure for improving safety in the event of a collision.

(Prior art) When a longitudinal impact force is applied to a vehicle due to a frontal collision, etc., as the front of the vehicle body deforms, the cowl portion on which the windshield support portion is provided also deforms, causing the windshield to deform. The seal part may peel off. Particularly in the United States, there are laws and regulations that prohibit separation of the windshield from the cowl beyond a specified level.

Therefore, as disclosed in Japanese Patent Application Laid-open No. 57-104470g, for example, the cowl part was made to easily deform during a collision to prevent the windshield from separating from the cowl part.

However, with such a structure, when a large impact of more than a predetermined amount is applied, a sufficient effect cannot be achieved.

(Objective of the Invention) The present invention has been made in view of the above circumstances, and is intended to prevent the windshield from separating from the cowl even when a longitudinal impact force is applied to the vehicle due to a collision. It is an object of the present invention to provide a front body structure for an automobile that can minimize delamination.

(Mission of the invention) In the front body structure of an automobile according to the present invention, when an impact force in the longitudinal direction is applied to a two-car vehicle in a collision, the cowl part is displaced rearward and downward, while the rear part of the bonnet is displaced toward the road. Focusing on this point, the wiper reinforcement fixed to the cowl part is provided with a locking piece whose front end is formed in a hook shape, and the tip is positioned adjacent to the locking piece. An engaging part is provided at the rear of the hood, whereby the locking piece and the engaging part are engaged in the event of a vehicle collision, thereby minimizing deformation of the joint between the windshield and the cowl part. That is, there is a cowl part formed into a box-shaped cross section, extending in the vehicle width direction, and having a windshield support part provided on the upper wall, and a wiper v fixed to the inner wall of the cowl part; and a mounting part for the device. A wiper reinforcement having a rear end fixed to the wiper reinforcement, a locking piece formed in an upward hook shape with a front end bent toward the rear of the vehicle, and one end fixed to the rear of the hood. , and an engaging portion whose other end extends to a position adjacent to the front end of the hook-shaped front end of the locking piece on the rear side of the vehicle when the bonnet is closed. It is.

The locking piece and the engaging portion may be formed integrally with the wiper reinforcement and the bonnet, respectively, or may be formed separately.

Moreover, the above-mentioned "adjacent position" means a position where the locking piece and the engaging part engage in the event of a vehicle collision, and where there is no problem in the opening/closing operation of the bonnet under normal conditions.

(Example) An example of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 (J) is a perspective view showing the front body structure of an automobile according to this embodiment.

A window glass 4 is attached to the upper wall 2 of the cowl part 1, which is formed in a box-shaped cross section with 170 openings on the right side of the soil part, through a contact agent 3.
A window glass support part is formed to support the lower end of the
Wiper reinforcement members 1 to 8 are fixed to the rear inner wall 5 of the cowl part 1. Wiper reinforcement members 1 to 8 that hold the mounting part 7 of the wiper device 6 to the right are fixed. The rear end portion is fixed, and the locking piece 9 extends toward the front of the vehicle, and the front end portion 10 is formed into an upward hook shape bent toward the rear of the vehicle.

On the other hand, the inner panel 12 of the bonnet 11 is connected to an engine compartment 14 that accommodates structures such as a surge tank 13.
The front wall 15''2 of the cowl part 1 that partitions the inside of the cowl part 1
Seal rubber 16 with one stone attached to the pan, bonnets 1 to 1
1, and the rear part of the inner panel 12 behind the corresponding contact part has an opening so that the upper end 10a of the front end 10 of the locking piece 9 is inserted and positioned when the front end 10 of the locking piece 9 is inserted. 17 is formed. Furthermore, inner panel 12
On the rear side of the rear opening 11, there is a tip 1 with an abbreviated side cross section.
An engaging portion 19 formed by bending 8 toward the side of the vehicle is fixed, and a tip portion 18 of the engaging portion 19 is connected to a front end portion 10 of a locking piece 9 that is fixed to the Yiber reinforcement 8. Vertical portion 10 of the cough front end portion 10 on the rear side of the vehicle
b It is arranged so as to extend to a position adjacent to the lower end. The above-mentioned frontage 17 and the engaging portion 19 are connected to the bonnet 11.
The respective dimensions are determined so as not to interfere with the locking piece 9 when opened in the direction of the arrow.

Next, the operation of this embodiment will be explained.

Figure 2 shows road structures located in front of the vehicle, oncoming vehicles,
FIG. 2 is a side view of a vehicle in a state where a bumper 21 is about to collide with a barrier 20 of a vehicle traveling in front or the like.

The construction part in the figure is the front body structure shown in FIG.

In the state shown in this figure, the legi tank 13 located in the rear part of the engine room 14 and the lower end 15 of the front wall 15 of the cowl portion 1. A sufficient distance is maintained between the protrusion 22 and the protrusion 22 protruding forward from the vehicle. Note that the hinge center 23 when the bonnet 1 is closed is located at the rear of the cowl portion 1 of the vehicle.

FIG. 3 is a side view showing the situation at the moment when the vehicle collides with the barrier A720 and the 1-noge tank 13 comes into contact with the protrusion 22 of the cowl part 1.

When the bumper 21 moves backward toward the rear of the vehicle by arrow B due to a collision, the front end of the bonnet 11 moves backward toward the vehicle by arrow C, and as a result, the bonnet 11 is bent at approximately the center in the front-rear direction and deformed as shown by the arrow. The rear part of this bonnet 11 is displaced toward the road. On the other hand, Riki Ur? At this time, the iS1 is not yet deformed, and the position of the tip 18 of the engaging portion 19 is displaced upward with respect to the hook-shaped front end 10 of the locking piece 9 fixed to the waiver reinforcement 8, and the front end 10 upper end 10
Located near a.

Note that the direction of displacement of the surge tank 13 at this time is slightly downward toward the rear of the vehicle as indicated by arrow ET, and if the surge tank 13 is displaced further than the state shown in the figure, the locking piece 9 will move accordingly. It is displaced slightly downward from the displacement direction of the surge tank 13 (arrow F).

FIG. 4 is a side view showing the final state in which the vehicle has collided with the barrier 20.

The swivel tank 13 is further displaced in the direction of arrow E from the position shown in FIG. 3 and presses the protrusion 22, causing the recowl portion 1 to deform. This way the locking piece 9 moves in the direction of arrow F (
3), and the bonnet 11 is further displaced in the direction of the arrow (see FIG. 3), so the locking piece 9 and the engaging portion 19 are in an engaged state, so that the cowl portion 1 Wyver reinforcement 8 fixed part and bonnet 1
1vi section will not be displaced beyond the illustrated state. Therefore, as is clear from the figure, even if the vehicle collides with the barrier 20 and receives an impact force in the longitudinal direction, the deformation force does not reach the upper wall 2 of the cowl portion 1, and the windshield 4
Is the cowl part 1 peeled off 1111'? It is possible to prevent this from happening.

(Y!! Light effect) As described in detail above, the front body structure of the automobile according to the present invention has a locking piece whose front end is formed in a hook shape on the wiper reinforcement fixed to the cowl. At the same time, an engaging part is provided at the rear of the bonnet so that the tip is located adjacent to the locking piece, so that when the vehicle crashes, it engages with the locking piece +iQ. The windshield is designed to engage with the cowl to prevent deformation of the joint between the windshield and the cowl, so even if a longitudinal impact force is applied to the vehicle due to a collision, the windshield Since it is possible to prevent peeling between the cowl portion and the cowl portion, or to minimize peeling, safety can be significantly improved.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of the front body structure of an automobile according to the present invention, and FIGS. 2 to 4 are side views showing the functions of the structure. DESCRIPTION OF SYMBOLS 1... Cowl part 2... Top wall 3... Contact agent 4... Window glass 5... Rear inner wall 6... Wiper device 7... Mounting part 8... Wiper rain Forcement 9... Locking piece 10... Front end portion 11...
・Bonnet 18... Tip part 19... Engagement part

Claims (1)

[Scope of Claims] A cowl part formed into a box-shaped cross section, extending in the vehicle width direction, and having a window glass support part provided on the upper wall, and a mounting part for a wiper device fixed to the inner wall of the cowl part. a locking piece formed in an upward hook shape with a rear end connected to the wiper reinforcement and a front end bent toward the rear of the vehicle; one end connected to the rear of the hood; an engaging portion whose other end extends to a position adjacent to the front end portion of the hook-shaped front end portion of the locking piece on the rear side of the vehicle when the bonnet is closed; . A front body structure for an automobile, wherein the locking piece and the engaging portion are engaged with each other.