JP3281198B2 - Glass run molding part - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded part of a glass run for receiving a door glass and sealing the inside and outside of the door glass.

[0002]

2. Description of the Related Art Generally, a glass run is attached to an inner peripheral edge of a door sash. The glass run is a member having a substantially U-shaped cross section which is mounted in a concave portion formed on the inner peripheral edge of the door sash. The straight portion of the door sash is formed by extrusion, and the corner portion of the door sash is formed by molding. Manufactured by When manufacturing a molded part, an extruded part manufactured in advance is set in a mold, and the molded part and the extruded part are integrally connected.

An example of this will be described with reference to FIGS. 10 to 13. FIG. 10 shows an enlarged view of the front side door F.
1 shows a glass run 1 attached to a corner of a door sash DS (a joint portion between an upper portion and a rear side portion of the door sash DS). The glass run 1 is formed in a substantially U-shaped cross section. The glass run 1 has an extruded part 3 joined to both ends of a molded part 2 bent at a substantially right angle. Note that S indicates a joint. An inner lip 5 extending to the inner bottom of the glass run 1 is formed at an end of a side wall 4 on the vehicle interior side of the glass run 1, and an outer lip 7 having a shorter length than the inner lip 5 is formed on a side wall 6 outside the vehicle run of the glass run 1. (This similar structure is disclosed in, for example, JP-A-63-43819).
Issue).

[0004]

As can be seen from the shape of the end face shown in FIG. 10, the extruded portion 3 can be extruded in the same shape, but the molded portion 2 has an inner lip 5 and an outer lip. Since the pieces 7 face inward from each other, it is not possible to remove the mold with the same shape. Therefore, the cross-sectional shape of the molded portion 2 is shown in FIG.
As shown in section A, the outer lip 7 is deformed and formed as a protruding portion 7A projecting slightly inward, so that the die can be removed.

[0005] Further, in order to make the protruding portion 7A and the corresponding outer lip 7 of the extruded portion 3 continuous with each other, FIG.
As shown in FIG. 10 as a BB cross section in FIG.
The outer lip 7 is set in a crushed state, and FIG.
In the vicinity of the end of the molded portion 2 as shown in FIG. 10 as a cross section taken along the line C-C, a change portion 7B having an intermediate shape between the protruding portion 7A and the outer lip 7 is formed. The molded part 2 is formed so that the outer lip 7 gradually becomes the protruding part 7A.

Therefore, as shown in FIGS. 11 and 12, the inner lip 5 can be in close contact with the door glass 8, but the outer lip 7 near the end of the extruded part 3 and the end lip near the end of the molded part 2. In the change portion 7B, a gap P is generated and the seal is broken.

Further, as shown in FIG. 13, a sealing reaction force is increased at the protruding portion 7A of the molded portion 2, and the function of absorbing the variation of the door glass 8 (displacement of the position inside and outside the vehicle compartment) is exhibited. I can't.

Therefore, the present invention facilitates die cutting,
The present invention also provides a molded part of glass run which is excellent in terms of sealing properties such as water tightness and air tightness.

[0009]

SUMMARY OF THE INVENTION A cross section for receiving a door glass in a glass run body when the door glass is closed, and sealing the inside and outside of the door glass with respective lips attached inward to the ends of both side walls of the glass run body. A glass run having a substantially U-shape, and in a molded portion of the glass run joined to the extruded portion, an end of one side wall of the glass run main body formed in a substantially U-shaped cross section is directed toward the inner bottom. One lip is formed on the other side wall, and a concave portion is formed on the other side wall from the outer surface toward the inside of the glass run body, and a portion from the bottom of the concave portion to the tip of the side wall is formed as the other lip. At the same time, the side wall of the concave portion near the bottom of the glass run body was made thin.

Here, the thin wall may be arranged in a direction substantially perpendicular to the door glass.

In the vicinity of the end connected to the extruded portion, the thin wall of the other side wall is gradually displaced to the tip of the other lip, and the other end of the glass run main body is moved to the other end. The lips may be aligned with the corresponding lips of the extrusion.

[0012]

According to the first aspect of the present invention, the concave portion secures a deflection allowance of the other lip, and improves the demolding property around the other side wall during the demolding. The thin wall also matches the reaction force of the other lip with the corresponding lip of the extruded section.

According to the second aspect of the present invention, in addition to the function of the first aspect, a thin wall disposed in a direction substantially perpendicular to the door glass effectively applies a reaction force to the door glass.

According to the third aspect of the present invention, in addition to the functions of the first and second aspects, the position of the thin wall is gradually changed, so that the extruded portion is connected to the other lip. Smooth shape transition becomes possible.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings, in which the same reference numerals are given to the same parts as those of the conventional art. FIG.
As shown in FIG. 1, a glass run 1 attached to a corner of a door sash of a vehicle door (not shown) has a substantially U-shaped cross section and is connected to both ends of a molded portion 2 bent substantially at right angles. The extruded part 3 is formed. In addition, S indicates a joint portion between the extruded portion 3 and the molded portion 2.

As shown in FIGS. 1 to 3, an end of one side wall 4 of the glass run main body GL of the molded part 2 has an inner lip 5 (one side of the vehicle interior) as one lip extending to the inner bottom of the glass run main body GL. ) Is formed. Note that this inner lip 5 is the inner lip 5 of the extruded part 3 shown in FIG.
And the same cross-sectional shape. The inner lip 5 is longer than an outer lip, which will be described later, and corresponds to the fact that the door glass 8 is offset toward the outside of the vehicle compartment in order to achieve a flash surface of the vehicle body.

On the other hand, the other side wall 6 of the glass run main body GL
An outer lip 9 (outside the vehicle compartment) as the other lip as shown in FIG. 1 as a sectional view taken along line DD of FIG. That is, the concave portion 10 is formed from the outer surface on the tip end side of the side wall 6 toward the inside of the glass run main body GL, and the portion from the bottom of the concave portion 10 to the tip portion of the side wall 6 is formed as the outer lip 9.

More specifically, the formation position of the outer lip 9 is substantially coincident with the position of the corresponding outer lip 7 of the extruded portion 3, and the side wall of the recess 10 near the bottom of the glass run main body GL. The part is formed as a thin wall 11. The thin wall 11 is formed in a direction substantially perpendicular to the door glass 8.

Here, the concave portion 10 is provided with a glass run main body G.
L is formed near the end of the glass run body GL, as shown in FIGS. 3 and 6, in order to maintain the shape of the recess 10. A thin rib 12 is provided.

The thin wall 11 is shown in FIG.
In the vicinity of the end of the glass run main body GL, as shown in the -E cross-sectional view, the length becomes shorter toward the end, gradually displaced toward the tip of the outer lip 9, and disappears at the end of the glass run main body GL. Then, the outer lip 9
Are substantially aligned with and aligned with the outer lip 7 of the extruded portion 3.

Incidentally, both ends of the bottom wall of the glass run main body GL (also provided on the extruded portion 3) protrude outward, and the inner lip 5, the outer lip 9 and the outer lip 9 of the molded portion 2 are formed. Each base portion (the tip portion in the outer lip 9) of the inner lip 5 and the outer lip 7 of the extruded portion 3 protrudes outward from each of the side walls 4, 6, and comes into close contact with the inner wall surface of the door sash (not shown). I have.

According to the structure of the above embodiment, since the recess 10 is formed in the other side wall 6, the degree of freedom of deformation of the outer lip 9 is increased, and a sufficient allowance for deflection can be secured. Therefore, the variation of the door glass 8 can be absorbed. In addition, the thin wall 11 is arranged in a direction substantially perpendicular to the door glass 8 in association with the increase in the degree of freedom of deformation of the outer lip 9, and the angle between the other side wall 6 and the thin wall 11 does not become an acute angle. Will also be easier. Since the thin wall 11 is arranged in a direction substantially perpendicular to the door glass 8, a reaction force can be effectively applied to the door glass 8.

Further, by providing the thin wall 11, the reaction force which is insufficient with the outer lip 9 alone is compensated by the reaction force of the thin wall 11, so that the reaction force of the outer lip 7 of the extruded portion 3 is balanced. Can be. Therefore, a change in the reaction force of the outer lip 7, 9 when the transition from the extrusion molding portion 3 to the molding molding portion 2 can be minimized, and the seal is not broken, and sufficient sealing performance can be secured. it can.

At the joint S between the extruded part 3 and the molded part 2, the thin wall 11 of the molded part 2 has disappeared, and the outer lip 7 of the extruded part 3 and the outer lip of the molded part 2 have been removed. Since the cross-sectional shapes of the extruded portion 3 and the molded portion 2 are substantially the same, the shape of the extruded portion 3 and the molded portion 2 can be smoothly changed. Therefore, the appearance quality is not impaired.

Since the concave portion 10 of the molded portion 2 is maintained by the rib 12, the shape of the outer lip 9 can be maintained.

[0026]

According to the first aspect of the present invention, it is possible to secure the deflection allowance of the other lip by the concave portion, and to improve the demolding property around the other side wall during the demolding. Also, the provision of the thin wall allows the reaction force of the other lip to be harmonized with the corresponding lip of the extruded portion.

According to the second aspect of the invention, in addition to the effect of the first aspect, a reactive force is effectively applied to the door glass by the thin wall disposed in a direction substantially perpendicular to the door glass. be able to.

According to the third aspect of the invention, in addition to the effects of the first and second aspects, the position of the thin wall is gradually changed, so that the thin wall can be connected to the other lip of the extruded portion. Smooth shape transition is possible, and appearance quality can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one embodiment of the present invention, taken along line DD in FIG.

FIG. 2 is a sectional view taken along the line EE in FIG. 6;

FIG. 3 is a sectional view taken along line FF of FIG. 6;

FIG. 4 is a sectional view taken along the line GG of FIG. 6;

FIG. 5 is a sectional view taken along the line HH in FIG. 6;

FIG. 6 is a side view of the glass run as viewed from outside the cabin.

7 is a view taken in the direction of the arrow V in FIG. 6;

FIG. 8 is a perspective view showing an inner portion of the outer lip.

FIG. 9 is a perspective view showing an outer portion of the outer lip.

FIG. 10 is an explanatory diagram of a conventional technique.

FIG. 11 is a sectional view taken along the line BB of FIG. 10;

FIG. 12 is a sectional view taken along the line CC of FIG. 10;

FIG. 13 is a sectional view taken along the line AA of FIG. 10;

[Explanation of symbols]

 2 ... Molded part 3 ... Extruded part 4 ... One side wall 5 ... Inner lip (one lip) 6 ... The other side wall 7 ... Corresponding lip of the extruded part 8 ... Door glass 9 ... Outer lip (other lip) 10: recess 11: thin wall GL: glass run body

Claims (3)

(57) [Claims] When the door glass is closed, the door glass is received in the glass run main body, and the inside and outside of the door glass are sealed by respective lips attached inward to the ends of both side walls of the glass run main body. A glass run having a substantially U-shaped cross-section at one end of one side wall of the glass run main body formed in a substantially U-shaped cross-section at a molded portion of the glass run joined to the extrusion-formed portion. A concave portion is formed on the other side wall from the outer surface to the inside of the glass run body, a portion from the bottom of the concave portion to the tip of the side wall is formed as the other lip, and the glass run of the concave portion is formed. A glass run molded part characterized in that a side wall part near the bottom of the main body is made thin. 2. The glass run molding part according to claim 1, wherein said thin wall is arranged in a direction substantially perpendicular to the door glass. 3. Near the end connected to the extruded portion, the thin wall of the other side wall is gradually displaced to the tip of the other lip, and at the end of the glass run main body,
3. The molded part of claim 1, wherein the other lip is aligned with a corresponding lip of the extruded part.