JP2554189B2 - Front window panel holding structure for automobiles - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the structure of a portion that holds a front window panel of an automobile air box.

(Prior Art) Conventionally, there has been a structure of a front window panel holding portion for an automobile as shown in FIG. 2 to FIG.

2 is a cross-sectional view of a portion corresponding to the line II-II in FIG. 4, in which the reference numeral 1 is disposed in the front side of the passenger compartment 2 along the vehicle width direction and below the rear end of the hood 3. The lower end of the front window panel 4 is attached to the upper surface of the air box 1 located.

Specifically, the air box 1 has a closed cross section formed by joining the dash upper panel 6 and the cowl top panel 7. At the upper end of the vehicle compartment side vertical wall portion 8 of the dash upper panel 6, a flange 9 extending toward the vehicle compartment 2 side is provided.
Is formed, and the flange 10 of the cowl top panel 7 is joined to the flange 9. A coating portion 19 extending rearward from the flange 9 is formed on the flange 10, and a paint seal 11 is coated on the tip portion of the flange 10 on the coating portion 19. And cowl top panel 7
A recess 13 is formed at the rear end of the upper surface 12 of the
The lower end portion 16 of the front window panel 4 is fitted to the upper portion 12 of the air box 1 via the adhesives 14 and 15, so that the front window panel 4 is fixed to the upper surface portion 12 of the air box 1.

In the figure, reference numeral 5 is a dash lower panel, reference numeral 17 is a cowl cover, and reference numeral 18 is a harness.

However, in such a conventional one, since the front window panel 4 is held only by the rigidity of the cowl top cover 7 and the dash upper panel 6, in order to maintain the holding rigidity, these panels 6 , 7 must be made thicker, resulting in an increase in the weight of the vehicle body. Further, in order to prevent the air leakage from the air box 1 into the vehicle interior, in order to apply the paint seal 11, the application portion 19 of the flange 9 must be provided so as to project from the flange 10 toward the vehicle interior 2 side. However, there is a problem in that the instrument panel 20 cannot be brought close to the side of the air box 1, and the position of the instrument panel 20 becomes high, leading to a reduction in the opening area of the front window panel 4.

Then, as an example of overcoming such a problem, there is one as shown in FIG. 3, for example.

That is, one flange 26 of the lower member panel 29 is fitted between the flange 23 of the dash upper panel 22 of the air box 21 and the flange 25 of the cowl top panel 24, and the other flange 27 is the upper surface of the cowl top panel 24. Joined to the part 28, the cowl top panel 24 and the lower member panel 29.
A closed cross section is formed by the front window panel 4
The rigidity of the mounting portion of is improved. Also the flange
The instrument panel 20 is brought closer to the air box 21 side by setting the joining positions of 23, 25, and 26 to be lower than those shown in FIG. As a result, the instrument panel 20 can be arranged at a lower position than the instrument panel 20 shown in FIG. 2, so that the opening area of the front window panel 4 can be increased.

Examples of this type include, for example, JP-A-59-2372.
There is the one described in Japanese Patent Publication No. 0.

(Problems to be Solved by the Invention) However, in the conventional one shown in FIG. 3, the joint portions of the flanges 23, 25, 26 are located on the harness 18 side,
Application part 31 of flange 23, which is the application surface of paint seal 11.
Is extremely close to the harness 18, the harness 18 must be covered with the protector 30 in order to prevent damage to the harness 18, which causes a problem of cost increase.

Therefore, the present invention aims to improve the rigidity of the front window panel mounting portion without increasing the plate thickness of the air box, and to install the instrument panel or the like in the air box without causing interference between the harness and the air box joint portion. The challenge is to be able to place them close together.

(Means for Solving the Problem) The present invention has been made in view of the above-mentioned conventional problems, and the rear end of the upper surface of the air box and the upper portion of the vehicle compartment vertical wall are joined together to form the upper surface. In the structure of a front window panel holding portion for an automobile in which a lower end portion of a front window panel is attached to a rear end portion of the upper portion of the upper surface portion and an upper portion of a vertical wall portion on the vehicle compartment side below a mounting portion of the lower end portion of the front window panel. With a structural adhesive in between,
The rear end portion of the upper surface portion and the upper portion of the vehicle compartment side vertical wall portion are extended rearward to form flanges, and the upper flange of the dash upper member is joined to these flanges, and the dash upper member By fixing the lower end portion to the vehicle compartment side vertical wall portion or bottom surface portion of the air box and disposing the dash upper member on the vehicle compartment side of the air box, the dash upper member and the structural adhesive are provided. It is characterized in that it has a structure of a front window panel holding portion for an automobile, in which a closed cross section is formed by the disposing portion and the vehicle compartment side vertical wall portion.

(Operation) According to this means, the dash upper member, the structural adhesion disposition portion,
Also, since a closed cross section is formed in the vehicle interior side vertical wall portion and the air box rigidity of the front window panel mounting portion is enhanced, it is possible to maintain sufficient air box rigidity without increasing the plate thickness, The rigidity of the front window panel holding portion can be improved.

Further, since the structural adhesive disposed between the upper surface of the air box and the upper portion of the vehicle-cabin side vertical wall portion prevents the sealing failure, it is not necessary to extend the coating portion 31 rearward as in the conventional case. Therefore, the instrument panel can be brought close to the air box, the degree of freedom in modeling is improved, and the window opening area is enlarged.

(Example) Hereinafter, the present invention will be described based on examples.

FIG. 1 is a diagram showing an embodiment of the present invention. The same members as those shown in FIGS. 2 and 3 are designated by the same reference numerals in the following description.

In the figure, reference numeral 41 is an air box, which is formed into a closed cross section by joining a dash upper panel 43 and a cowl top panel 49, and the lower end portion 16 of the front window panel 4 is fixed to the air box 41. There is.

For details, the dash upper panel 43 is a vertical wall portion on the passenger compartment side.
The upper end of 45 is bent toward the passenger compartment 2 to form a flat flange 44, while the cowl top panel 49 has a flange joined to the flange 44 at the rear end of the upper surface 50.
52 are formed. On the front side of the flange 52, a recess 51 is formed in which the lower end portion 16 of the front window panel 4 is fixed via adhesives 59, 60. The code
58 is a dam rubber. The lower surface of the concave portion 51 and the base surface of the flange 44 are located below the adhesive portion by the structural adhesive 42.
Are glued by.

Here, the structural adhesive 42 has a certain thickness (1 m
It has the property of solidifying without causing volume shrinkage even when applied with about m), and corresponds to, for example, the product name "Cibagaiki XNR3553NW" manufactured by Cibagaiki Co., Ltd.

A dash upper member 54 is joined to the vehicle compartment side vertical wall portion 45 side of the air box 41 to form a closed cross section 53, whereby the rigidity of the air box 41 to which the lower end portion 16 of the front window panel is fixed is fixed. It is being strengthened.

That is, the dash upper member 54 having a substantially L-shaped end face is disposed opposite to the vehicle interior vertical wall portion 45, and the tip end portion of the bottom wall portion 55 of the dash upper member 54 is joined to the bottom wall portion 55 of the dash upper panel 43. A flange 57 formed by bending the upper end of the vertical wall portion 56 of the dash upper member is joined to the flange 44. In this state, a closed cross section 53 is formed by the vehicle interior side vertical wall portion 45, the structural adhesive 42 disposition portion, and the dash upper member 54.

In the figure, reference numeral 61 is a cowl cover, and reference numeral 62 is a seal member for sealing a gap with the hood 3.

Next, the operation of the vehicle front window panel holding structure having the above structure will be described.

At the fixed portion of the lower end portion 16 of the front window panel 4, a closed cross section 53 is formed by the vehicle interior side vertical wall portion 45, the structural adhesive 42 disposition portion, the dash upper member 54, etc. to improve rigidity. Therefore, the indicated rigidity of the front window panel 4 can be maintained without increasing the plate thicknesses of the cowl top panel 49 and the dash upper panel 43 of the air box 41.

In addition, since the structural adhesive 42 prevents the air from leaking from the air box 41 into the vehicle interior 2,
As shown in FIG. 3 and FIG. 3, it is not necessary to provide the coating portion 19 for the paint seal 11 protruding toward the vehicle compartment 2 side, and the flange 4
The structure of 4, 52, 57 terminals can be matched. Therefore,
Since the instrument panel 20 can be arranged at a solid line position extremely close to the air box 41 side compared to the conventional position shown by the chain double-dashed line, and can be arranged at a low position of the instrument panel 20, the window opening area can be reduced. It can be expanded more than before.

Further, since the flanges 44, 52 and 57 are joined to each other above the harness 18, interference with the harness 18 due to vehicle vibration does not occur. Therefore, it is not necessary to cover the protector 30 and the like on the harness 18, and as a result, cost reduction and improvement of vehicle quality can be achieved.

(Effects of the Invention) As described above, according to the present invention, in the vicinity of the mounting portion of the lower end portion of the front window panel, the dash upper member, the structural adhesive disposing portion, and the vertical wall portion on the air box passenger compartment side are provided. Since the closed cross-section is formed, the rigidity of the front window panel mounting portion can be enhanced.

In addition, since the structural adhesive is interposed at the joint between the upper surface of the air box and the vertical wall on the passenger compartment side, it is not necessary to extend the application part for applying paint seals and the like. The member can be disposed close to the air box passenger compartment side vertical wall portion side, and the window opening area can be increased.

Further, since the upper surface of the air box is joined to the upper portion of the vehicle compartment side vertical wall portion, the joint portion between the upper surface portion and the vehicle interior vertical wall portion does not interfere with a vehicle component member such as a harness, and It has a practically useful effect of being able to improve quality.

[Brief description of drawings]

FIG. 1 is a sectional view corresponding to FIG. 2 showing one embodiment of the structure of a front window panel holding portion for an automobile of the present invention. 2 and 3 are views showing different conventional front window panel holding portion structures for automobiles, and FIG. 2 is a line II-II in FIG. 4 showing a first conventional example of the holding portion structure. FIG. 3 is a cross-sectional view of a portion along the line, FIG.
FIG. 4 is a sectional view corresponding to the drawing, and FIG. 4 is a perspective view showing a vehicle body around the engine room. 2 …… Car interior 4 …… Front window panel 16 …… Lower end 41 …… Air box 42 …… Structural adhesive 44,52 …… Flange 45 …… Car interior side vertical wall 50 …… Top surface 53 …… Closed section 54 …… Dash upper member 57 …… Flange (upper flange) 59,60 …… Adhesive

Claims (1)

(57) [Claims] 1. A front window panel for an automobile in which a rear end of an upper surface of an air box and an upper portion of a vehicle compartment side vertical wall are joined together, and a lower end of a front window panel is attached to a rear end of the upper surface. In the holding portion structure, on the lower side of the mounting portion of the lower end portion of the front window panel,
A structural adhesive is interposed between the upper surface portion and the upper portion of the vehicle compartment side vertical wall portion, and the rear end portion of the upper surface portion and the upper portion of the vehicle compartment side vertical wall portion are extended rearward to form a flange. Further, the upper flange of the dash upper member is joined to these flanges, and the lower end portion of the dash upper member is fixed to the vehicle compartment side vertical wall portion or the bottom surface portion of the air box to secure the dash upper member. By disposing the air box on the passenger compartment side, a closed cross section is formed by the dash upper member, the structural adhesive disposing portion, and the passenger compartment side vertical wall portion. Window panel holding structure.