JPH0228965Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the peripheral structure of adhesive window glass.

Conventionally, as shown in FIGS. 1 to 4, an adhesive 6 is interposed between the peripheral adhesive surface 2a of the inner surface of the window glass 2 and the mounting surface 4a on the vehicle body 4 side, and the inner surface of the window glass 2 is A mounting surface 4a whose tip is on the side of the vehicle body 4 is located inwardly than the adhesive surface 2a.
It is known that a window dam 8 is fixed to the window dam 8 to prevent the adhesive 6 from extruding inwardly. In addition, in the figure, 10 is a molding disposed on the outer peripheral edge of the window glass 2, 12 is a head lining, and 14 is a pillar trim.

However, the cross-sectional shape of the window dam 8 has a smoothly curved, almost C-shape, and the amount of compression of the window dam 8 against the pressing force of the window glass 2 during adhesion is shown by the dashed line in FIG. As shown in the figure, since the rate of change in the amount of compression does not change much as the load increases, the operator can determine the appropriate amount of pressure on the window glass 2 based on the reaction force of the window dam 8. figure,
For this reason, the mounting surface 4 of the window glass 2 and the vehicle body 4
There was a problem in that a spacer 16 had to be provided as appropriate between the two.

The present invention was devised to solve the above-mentioned problems, and an adhesive is interposed between the peripheral adhesive surface of the inner surface of the window glass and the mounting surface on the vehicle body, and the adhesive is bonded to the inner surface of the window glass. A window dam is fixed to a portion inward from the surface, the tip of which abuts against the mounting surface on the vehicle body side to prevent the adhesive from protruding inward,
The window dam is made up of a base part that is in close contact with the window glass side, and a holding part that protrudes from the base part and holds the adhesive, and the holding part has a substantially uniform cross-sectional thickness and a cross-sectional shape. By forming the window glass into a substantially dogleg shape having a bend point bent inward, the amount of compression of the window dam changes when the amount of compression of the window dam due to the pressing force of the window glass exceeds a certain value. The gist of the present invention is a peripheral edge structure of an adhesive type window glass, which is characterized by a rapidly decreasing ratio.

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 5 and 6. In addition, in the drawings, substantially the same parts of the above-mentioned conventional structure are designated by the same reference numerals as those used above, and detailed description thereof will be omitted.

In this embodiment, the window dam 18 that is fixed to an inward portion of the adhesive surface 2a on the inner surface of the window glass 2 includes a base portion 18a that is fixed to the inner surface of the window glass 2, and a holding portion that holds the adhesive 6. 18b. In addition, the holding part 18
b has a substantially uniform cross-sectional thickness, and is formed in a dogleg shape with a bending point 18c bent inward of the window glass 2.

Here, the holding portion 18b extending from the bending point 18c to the distal end portion 18d has a free end.
Further, a bending moment acts on the holding portion 18b extending from the bending point 18c to the tip end 18d due to a reaction force against the force pushing the window glass.

Further, the holding portion 18b extending from the base portion 18a to the bending point 18c is fixed to the base portion 18a, and its movement is restricted. In addition, since the bending moment due to the bending moment due to the above-mentioned reaction force and the bending moment due to the above-mentioned reaction force in the opposite direction act on the holding portion 18b extending from the base portion 18a to the bending point 18c, they cancel each other out. , the bending moment acts only slightly.

Therefore, when pressing the window glass 2, the holding portion 18b extending from the bending portion 18c to the tip portion 18d begins to bend before the holding portion 18b extending from the base portion 18a to the bending point 18c. At this time, the amount of compression of the window dam 18, ie, the amount of deformation of the holding portion 18b, is quickly deformed as shown up to point d in FIG.

Then, from the bent part 18c to the tip part 18d
The holding portion 18b that extends from the base portion 18a to the bending point 18c deforms until it becomes substantially parallel to the window glass 2, but in this state, a bending moment due to the reaction force from the vehicle body mounting surface 4a acts on the holding portion 18b that extends from the base portion 18a to the bending point 18c. I will do it.

However, at this time, compared to when pushing the window dam 18, the length of the window dam 18 from the fulcrum where the bending moment acts to the point of application becomes shorter, so even if you try to push with the same pushing force as before, the window dam The amount of deformation of 18 becomes smaller. Therefore, the amount of compression of the window dam 18 at this time, that is, the amount of deformation of the holding portion 18b is as shown in FIG.
As shown after the point, there is almost no deformation when a load is applied.

Therefore, this compression amount d can be compared with the conventional spacer 16.
By setting it to the value obtained by
Without the spacer, the worker could not open the window glass 2.
Since the appropriate pressing amount can be known, the above-mentioned conventional problems can be solved.

In addition, in the conventional structure, since there is a gap between the window dam 8 and the end portion of the head lining 12 or the pillar trim 14, the mounting surface of the vehicle body 4
Since the tip of the flange forming a is visible, ceramic coating or the like is applied to the inner peripheral edge of the window glass 2, but in this embodiment, the window dam 18 is coated on the end of the head lining 12 and the pillar trim 14. Since they are configured so as to be in contact with each other, it is possible to omit the ceramic coating and the like described above.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an automobile, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, showing a conventional structure, and Fig. 3 is a sectional view taken along the line B-B in Fig. 1, also showing the conventional structure. 4 is a cross-sectional view of a portion having a spacer, similarly showing the conventional structure, FIG. An example is shown in a sectional view taken along the line B--B in FIG. 1, and FIG. 7 is a load-compression characteristic diagram of the window dam in the conventional structure and the embodiment of the present invention. 2...Window glass, 2a...Adhesive surface, 4
...Vehicle body, 4a...Mounting surface, 6...Adhesive, 18
...Window Dam.

Claims (1)

[Scope of utility model registration request] Adhesive is interposed between the peripheral adhesive surface of the inner surface of the window glass and the mounting surface on the vehicle body side, and the tip is attached to the mounting surface on the vehicle body side at a portion of the inner surface of the window glass that is closer to the inside than the adhesive surface. A window dam is fixed to the window dam that comes into contact with the window dam and prevents the adhesive from protruding inward. By making the cross-sectional thickness of the holding part substantially uniform and forming the cross-sectional shape into a substantially dogleg shape having a bending point bent inward of the window glass, the holding part can be pressed against the window glass. A peripheral edge structure of an adhesive type window glass, characterized in that when the amount of compression of the window dam due to pressure exceeds a certain value, the rate of change in the amount of compression of the window dam rapidly decreases.