JPH0585164A - Mounting structure for window glass - Google Patents

Abstract

PURPOSE:To prevent blowing noise by forming a surface side holding piece of flange part for holding a peripheral edge of a window glass, having a step difference part on a surface, into thickness equal to the depth of the step difference part of the window glass, and eliminating a step difference between external surfaces of the window glass and the flange part. CONSTITUTION:A weather strip 3 is connected to a flange part 2, integrally molded with a window glass 1, to provide an adhesive material layer 4 between the window glass 1 and the flange part 2. Further, the flange part 2 is constituted of a holding part 2a, reinforced piece 2b and a mounting part 2c of the weather strip 3, so that thickness L of a surface side holding piece 2aa and depth D of a step difference part 1a are placed in a relation where L D. Accordingly, appearance can be improved by preventing blowing noise during running.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for windshields such as sunroofs and quarter windows.

[0002]

2. Description of the Related Art A method for forming a flange portion on the outer peripheral portion of a window glass and its structure are disclosed in Japanese Utility Model Laid-Open No. 58-35.
Those disclosed in Japanese Patent No. 417 and Japanese Patent Laid-Open No. 63-67128 are known. The former involves sandwiching a sheet glass in a mold with a predetermined cavity, injecting a synthetic resin raw material such as a raw material capable of forming a polyurethane resin into the cavity space, and then solidifying it to form a flange made of resin around the sheet glass. The present invention relates to a reaction injection molding method (RIM method) for integrally forming parts. On the other hand, the latter relates to a window glass mounting structure in which a plate glass is sandwiched in a mold having a predetermined cavity, and a flange portion is integrally molded by a reaction injection molding method (RIM method).

The structure of the mounting portion of the wind glass formed by the former and the latter can be unified into the structure shown in FIG. As shown in FIG. 3, the window glass mounting portion 15 includes a flat window glass 11 and a flange portion 1 formed on the window glass 11 by integral molding.
2, a weather strip 13 joined to the flange 12, and an adhesive layer 14. The flange portion 12 is a U-shaped holding portion 12b that is integrated so as to hold the vicinity of the wind glass 11 from both sides,
It is composed of a weather strip 13 attachment portion 12c which is continuous at a right angle with one piece of the holding portion 12b.

[0004]

However, as shown in FIG. 3, the outer surface of the window glass 11 and the flange portion 12 are formed.
Since the step surface 12a is formed between the outer surface and the outer surface of the vehicle, wind noise may occur during traveling.

Therefore, the present invention has as its technical problem the solution of the above problems.

[0006]

[Means for Solving the Problems] A technical means for solving the above technical problem is to provide a window glass mounting structure in which a flange portion for sandwiching a peripheral edge of a window glass having a step portion on its surface is provided. The wind glass mounting structure is characterized in that the wind glass and the flange portion are integrally formed, and a front side sandwiching piece of the flange portion has the same thickness as the depth of the step portion of the wind glass.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a window glass mounting portion 5 according to this embodiment. As shown in FIG. 1, the window glass mounting portion 5 is integrally molded with a window glass 1 having a step 1a. And a weather strip 3 joined to the flange portion 2, and an adhesive layer 4 for enhancing the adhesiveness between the window glass 1 and the flange portion.

The flange portion 2 has a U-shaped holding portion 2a which is integrated so as to hold the periphery of the window glass 1 from both sides, a step-like reinforcing piece 2b, and a weather strip 3
And the mounting portion 2c. And the holding part 2
The a has a front side holding piece 2aa and a back side holding piece 2ab. Further, as shown in FIG. 1, the relational expression L≈D is established between the thickness L of the front side sandwiching piece 2aa and the depth D of the step portion 1a of the windshield 1. Reinforcing piece 2b
Are formed so as to be continuous with the back side sandwiching piece 2ab and parallel to the windshield 1. The attachment portion 2c of the weather strip 3 extends along the direction of the weather strip 3 (rightward in FIG. 1) of the front side holding piece 2aa, and further in the back side direction (FIG. 1).
(Downward direction) is once extended at a right angle.

The window glass mounting portion 5 according to this embodiment is formed by the following method.

A window glass 1 having a step portion 1a in advance.
An adhesive is applied to a portion of the surface that is sandwiched by the sandwiching portion 2a. Next, a window glass 1 having a stepped portion 1a provided on the surface made of polycarbonate is sandwiched in a mold having a predetermined cavity, and polypropylene resin is injected and injected into the cavity space, followed by cooling and solidification to form the stepped portion 1a. A flange portion 2 made of polypropylene resin and having a shape as shown in FIG. 1 is integrally formed on the periphery of the provided window glass 1. Finally, as shown in FIG. 1, the weather strip 3 is joined to the mounting portion 2c of the weather strip 3,
A mounting portion 5 of window glass as shown in FIG. 1 is formed.

The resin material used for the window glass 1 includes acrylic resin in addition to the polycarbonate resin used in this embodiment. Resins used for injection molding include thermoplastic resins such as polypropylene resin, polyvinyl chloride resin, and thermoplastic elastomer. Further, instead of the injection molding used in this example, reaction injection molding (RIM) using a resin raw material for synthesizing a polyurethane resin or nylon can also be used.

FIG. 2 is a sectional view of a window glass mounting portion 5 according to another embodiment. As shown in FIG. 2, the window glass mounting portion 5 is constructed similarly to this embodiment. The flange portion 2 is composed of a U-shaped holding portion 2a which is integrated so as to hold the vicinity of the windshield 1 from both sides, and a mounting portion 2c of the weather strip 3. The sandwiching portion 2a has a front sandwiching piece 2aa and a back sandwiching piece 2ab each having the same thickness as the depth of the step portion 1a of the window glass 1.

The attachment portion 2c of the weather strip 3 extends along the direction of the weather strip 3 (rightward in FIG. 1) of the back side sandwiching piece 2ab and extends at right angles in the frontward direction (upward direction in FIG. 1). It may have a structure. Further, the back side holding piece 2ab may have a structure without the reinforcing piece 2b.

As described above, according to the present invention, the step portion 1
A window glass 1 is provided on the periphery of the window glass 1 having a.
Front side clamping piece 2a having the same thickness as the depth of the stepped portion 1a of
By providing the flange portion 2 having a, the outer surface of the window glass 1 and the surface of the front side holding piece 2aa of the holding portion 2a are flush with each other.

[0016]

According to the present invention, since the outer surface of the windshield and the outer surface of the flange portion are made flush with each other, wind noise during running can be prevented and the appearance looks beautiful.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a mounting portion 5 of a window glass according to this embodiment.

FIG. 2 is a mounting portion 5 of a windshield according to another embodiment.
FIG.

FIG. 3 is a sectional view of a mounting portion 15 of a windshield according to a conventional example.

[Explanation of symbols]

 1 Wind Glass 1a Step 2 Flange 2a Clamp 2aa Front Clamp 2ab Back Clamp 5 Wind Glass Attachment

Claims (1)

[Claims] 1. A mounting structure for a window glass having a flange portion for sandwiching a peripheral edge of a window glass having a step portion on a surface thereof, wherein the window glass and the flange portion are integrally molded, and a front side clamping piece of the flange portion is formed. The mounting structure for windshield glass, wherein the step has the same thickness as the depth of the step portion of the windshield.