JP2001030768A - Door glass run - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a corner-shaped molding portion at a side of a door glass run faithfully adapt to subtle variations in shapes at a corner edge at a side of a door sash. SOLUTION: In a corner-shaped molding portion 4 which couples an upper portion and a vertical portion of a glass run, a hollow corner lip portion 22, communicating with a hollow glass-contacting lip at an upper portion side of the glass run, is open outside via an open edge 22b. By carving and forming a slit 23 over a predetermined length from the open end 22b, the hollow corner lip portion 22 is made to be deformed easily in the vehicle width direction, and adapted to subtle variations in shapes at the side of a door sash.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door glass run provided on an inner periphery of a door sash portion of an automobile, and more particularly to a door glass run along a roof side portion and a pillar portion of a vehicle body. The present invention relates to an improvement in a corner portion structure in which a glass run longitudinal side portion is connected to each other.

[0002]

2. Description of the Related Art FIG. 4 shows a typical shape of a conventional door glass run. FIG. 1 is a view showing an example of the vicinity of a door corner portion. A door glass run 1 is roughly divided into a glass run upper side portion 2, a glass run vertical side portion 3 along a pillar portion on the vehicle body side, and these glass run upper side portions. 2 and a substantially L-shaped corner forming part 4 which is located between the terminal parts 2a and 3a of the glass run vertical side part 3 and connects them.

The upper side portion 2 of the glass run has a welt portion 6 having a substantially U-shaped cross section, a hollow glass contact lip 7 with which an end face of a door glass (not shown) elastically contacts, and a glass contact lip 7 which is also not shown. The terminal portion 2a is formed with a seal lip 8 whose side surface is elastically contacted and a cover lip 9 for decoration, and has a stepped joining surface 10 which is perpendicular to the longitudinal direction.

On the other hand, the glass run vertical side portion 3 is formed of a welt portion 13 having a substantially U-shaped cross section and a glass run channel portion 14 integrated therewith, and a seal lip 15 and a decorative lip 15 are provided outside the welt portion 13. And the cover lip 16 of the glass run is integrally formed.
A stepped joint surface 20 is formed on the terminal portion 3a.

The terminal portions 2a, 3a of both the upper side portion 2 of the glass run and the vertical side portion 3 of the glass run are integrally joined to each other via a corner-shaped forming portion 4. The upper half is a glass contact lip 7
Corner lip part 2 with almost uniform cross-section
It is 2.

Accordingly, when the door glass run 1 is mounted on the door sash portion S, the respective welt portions 6, 13 are fitted into the flange portion F on the door sash portion S side as described above, and at the same time, the flange portion F is formed. The back surface (upper surface) of the glass contact lip 7 and the back surface of the glass run channel portion 14 are pressed against the panel surface of the door sash portion S by receiving the pulling force due to the fitting (for example, Japanese Patent Application No. Hei.
-238914).

[0007]

In the structure of the conventional door glass run 1 as described above, the cross-sectional shape of the corner edge of the door sash S to be pressed against the corner mold part 4 is on the upper side. While the shape changes smoothly and continuously from the shape of FIG. 5 to the shape of FIG. 6 on the vertical side, the distance D1 from the flange portion F to the panel surface changes to D2 (D1> D2). However, since the upper half of the corner molding 4 is formed as a corner hollow lip 22 having a substantially uniform cross section in the horizontal direction, the cross section on the door sash S side In some cases, the corner-shaped molded portion 4 may not be able to exactly follow the shape change, but may be locally stretched. As a result, a subtle waving phenomenon occurs on the outer surface of the corner hollow lip portion 22 of the corner molded portion 4, and the surface of the corner hollow lip portion 22 appears to be depressed depending on the viewing direction, giving a sense of incongruity. Become
There is still room for improvement in improving the appearance quality.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and in particular, a door glass run which improves the appearance quality by improving the followability of the corner-shaped forming portion to the shape change of the door sash portion. It seeks to provide structure.

[0009]

According to the first aspect of the present invention, a substantially U-shaped section is fitted to a flange portion on a door sash portion side.
A vertical portion of a door grass run having a U-shaped welt portion and a glass run channel portion formed integrally with the back portion and pressing the back side against the door sash portion, and a welt portion having the same shape as above and a back surface formed integrally therewith The upper side of the door glass run having a hollow glass contact lip whose side is pressed against the door sash portion is integrally connected to each other via a corner mold forming portion so as to form a predetermined angle. It is assumed that the molded portion is a door glass run in which a corner hollow lip portion communicating with the glass contact lip is formed through.

Then, the corner hollow lip portion is provided on a rear surface portion of the corner hollow lip portion which is in pressure contact with the door sash portion over a predetermined length range from the end of the corner hollow lip portion to the glass contact lip. An easy-to-deform portion for facilitating deformation in the vehicle width direction is formed.

[0011] The minimum function of the easily deformable portion is as follows.
Since it is only necessary that the corner mold portion can follow the cross-sectional shape change in the vehicle width direction at the corner edge portion of the door sash portion, the corner hollow lip portion is opened at the end portion, for example, as in the invention according to claim 2. In this case, the slit may be cut from the open end toward the glass contact lip side, and as in the invention according to claim 3, from the open end of the corner hollow lip portion to the glass contact lip side. A notch formed to locally reduce the thickness of the corner hollow lip toward the corner may be used.

If the slit or notch, which is the easily deformable portion, is formed too long toward the glass contact lip, the inherent rigidity of the glass contact lip itself may be insufficient. The length of the slit or notch, which is an easily deformable portion, is appropriately set so that the rigidity of the glass contact lip does not become insufficient.

Therefore, in the inventions according to the first to third aspects of the present invention, the presence of the slit or the notch, which is an easily deformable portion, causes the corner portion to be formed in the rear portion of the corner portion in the vehicle width direction at the edge portion. The degree of freedom of deformation is increased, and the corner-shaped molded portion faithfully follows a change in the cross-sectional shape of the corner edge portion on the door sash portion side.

[0014]

According to the first to third aspects of the present invention, an easily deformable portion such as a slit or a notch portion is formed in the corner hollow lip portion of the corner-shaped forming portion. The degree of freedom of deformation in the part increases, and the corner-shaped molded part follows the shape change on the door sash part side faithfully. Can be prevented from occurring, and the appearance quality can be improved.

[0015]

1 and 2 show a preferred first embodiment of a door glass run according to the present invention.
Portions common to the above-described conventional structure are denoted by the same reference numerals.

As shown in FIGS.
Are roughly divided into a glass run upper side portion 2 along the roof side portion on the vehicle body side, a glass run vertical side portion 3 also along the pillar portion on the vehicle body side, and the glass run upper side portion 2 and the glass run vertical side portion 3 And a substantially L-shaped corner-shaped molding portion 4 which is located between the terminal portions 2a and 3a and connects the two, and the glass run upper side portion 2 and the glass run vertical side portion 3 are both formed by a known extrusion molding method. Molded with rubber or resin material.

The upper side portion 2 of the glass run is formed with a welt portion 6 having a substantially U-shaped cross section in which a metal core 5 is buried, and is formed integrally with one side portion of the welt portion 6 so that the end face of the door glass G is elastic. A hollow glass contact lip 7 to be in contact with,
Similarly, a seal lip 8 protruding from one side of the welt portion 6 and having a side surface of the door glass G elastically contacted, and a decorative cover lip 9 on the opposite side are formed to have a uniform cross-sectional shape. A stepped joint surface 10 that is perpendicular to the longitudinal direction is formed in the portion 2a. On the inner surface of the welt portion 6, holding lips 11, 12 which are in elastic contact with the flange portion F of the door sash portion S on the other side.
Are formed to protrude.

On the other hand, the glass run vertical side portion 3 has a welt portion 13 having a substantially U-shaped cross section and a glass run channel portion formed integrally in the opposite direction to the welt portion 13 so as to share one side of the welt portion 13. 14, a seal lip 15 and a decorative cover lip 16 are integrally formed on the outside of the welt portion 13, and a mating flange is formed on the inner surface. The holding lips 17, 18 which are in elastic contact with the portion are formed so as to protrude. In the glass run vertical side portion 3, a core metal 19 having a substantially deformed S-shaped cross section extending from the welt portion 13 to the glass run channel portion 14 side is embedded, and at a terminal portion 3a of the glass run vertical side portion 3, A stepped joint surface 20 is formed such that the front half of the glass run channel portion 14 on the vehicle exterior side protrudes above the rear portion.

Then, both ends 2a, 3a of the glass run upper side portion 2 and the glass run vertical side portion 3 are inserted into a mold (not shown) so as to form a predetermined angle with each other. Molding material (eg rubber cloth) in the gap
Is filled, and the space between the joint surface 10 on the upper side 2 of the glass run and the joint surface 20 on the vertical side 3 of the glass run is molded as a corner mold 4 by means of a mold. The terminal portion 2a of the glass run upper side portion 2 and the terminal portion 3a of the glass run vertical side portion 3 are integrally joined to each other.

That is, the terminal 2 on the upper side 2 of the glass run
The a-side welt portion 6 is continuous with the welt portion 13 on the end portion 3a side of the glass run vertical side portion 3 via the corner welt portion 21 which is a part of the corner molding portion 4, so that both seal lips 8, 15 and the cover lips 9 and 16 and the holding lips 11 and 17 also smoothly continue to each other, while the glass contact lip 7 on the end portion 2a side of the glass run upper side 2 also has the glass run lip The glass run channel portion 14 on the side of the terminal portion 3a of the vertical side portion 3 is smoothly continuous while changing its cross section.

The upper half portion of the corner-shaped molding portion 4 is a corner hollow lip portion 22 having a substantially uniform cross-sectional shape continuing to the glass contact lip 7, and the hollow portion of the corner hollow lip portion 22 is formed. Reference numeral 22a is open to the outside with an open end 22b on an extension of the glass contact lip 7, and as shown in FIGS. 2A and 2B, the back surface of the corner hollow lip 22, that is, the door sash S
The corner hollow lip portion 22 is slid over a predetermined length a from the open end 22b toward the glass contact lip 7 at an upper position of the surface which is to be pressed against the panel surface when assembled to the panel. A slit 23 as an easily deformable portion is formed so as to be split. This allows
The end of the corner hollow lip portion 22 is opened to the outside with an open end 22b and at the same time is also opened to the upper portion with a slit 23. As a result, the corner hollow lip portion 22 is easily deformed in the vehicle width direction. (Flexibility of elastic deformation).

Here, the upper end surface of the door glass G comes into pressure contact with the corner hollow lip portion 22 when the door glass G is raised, similarly to the glass contact lip 7, so that the formation length a of the slit 23 is limited. If it is larger than necessary, the rigidity required for the original sealing properties of the glass contact lip 7 and the corner hollow lip portion 22 may be insufficient, so the length a of the slit 23 is set as shown in FIG. It is desirable to set the amount of overlap W with the G end as small as possible.

Therefore, according to the present embodiment, when the door glass run 1 is mounted on the door sash portion, the respective welt portions 6, 13 and the corner welt portion 21 are connected to the flange on the door sash portion S side in the same manner as in the prior art. In addition to the rear (upper) surface of the glass abutment lip 7 and the rear surface of the glass run channel portion 14 as well as the rear surface of the corner hollow lip portion 22, the door sash portion is fitted to the portion F and simultaneously receiving the pulling force by the flange fitting. It comes into pressure contact with the panel surface of S.

At this time, even if there is a change in the cross-sectional shape as shown in FIGS. 5 and 6 especially at the corner edge of the door sash S where the corner mold part 4 comes into pressure contact.
Due to the degree of freedom of deformation due to the slit 23, the back surface of the corner hollow lip portion 22 closely follows the cross-sectional shape change on the door sash portion S side and closely adheres to the entire surface, and positively absorbs the shape change. As a result, the corner hollow lip 22 is prevented from stretching in the vehicle width direction, so that the surface of the corner hollow lip 22 does not have a waving phenomenon or a depression.

FIG. 3 is a view showing a second preferred embodiment of the door glass run according to the present invention.
Instead of the slit 23 in the first embodiment, the corner hollow lip portion 22 is located at the same position as the slit forming position.
Groove-shaped notch 33 to locally reduce the thickness of
Is formed.

Also in the second embodiment, since the thickness of the corner hollow lip portion 22 is locally reduced at the notch portion 33, the degree of freedom of deformation in the vehicle width direction is positively imparted. As a result, the same effect as in the first embodiment can be obtained.

Here, in each of the above embodiments, the case where the present invention is applied to the corner portion of the center pillar portion of the door sash portion of the front door or the rear door has been described. Needless to say, the present invention can be applied as long as it is the same.

[Brief description of the drawings]

FIG. 1 is a view showing a preferred first embodiment of a door glass run according to the present invention, and is a front explanatory view of a main part near a door corner.

2A is a rear perspective view of the door glass run shown in FIG. 1, and FIG. 2B is a cross-sectional view taken along line AA of FIG. 2A.

FIG. 3 is a sectional view showing a main part of a door glass run according to a second preferred embodiment of the present invention.

FIG. 4 is a view showing a typical shape of a conventional door glass run, and is an exploded perspective view showing a mutual relationship between the door glass run and a door sash portion.

FIG. 5 is a cross-sectional view of the door glass run shown in FIG. 4 at an upper side of the door glass run.

FIG. 6 is a cross-sectional view of the door glass run shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door glass run 2 ... Door glass run upper side part 3 ... Door glass run vertical side part 4 ... Corner molding part 6 ... Welt part 7 ... Glass contact lip 13 ... Welt part 14 ... Glass run channel part 22 ... Corner hollow lip part 22b ... Open end 23: Slit (easy to deform) 33: Notch (easy to deform) F: Flange S: Door sash

Claims (3)

[Claims] 1. A door glass run vertical side having a welt portion having a substantially U-shaped cross section to be fitted to a flange portion on a door sash portion side and a glass run channel portion formed integrally with the weld portion and having a rear side pressed against the door sash portion. Part, the upper edge of the door glass run having a welt portion of the same shape as described above and a hollow glass contact lip integrally formed with the back side and pressed against the door sash portion so as to form a predetermined angle. A door glass run which is integrally connected to each other via a corner molding portion, and which has a corner hollow lip portion formed through the corner molding portion so as to communicate with the glass contact lip; In the hollow lip portion, on the back portion that is in pressure contact with the door sash portion, over a predetermined length range from the end of the corner hollow lip portion to the glass contact lip, Door glass run, wherein the deformation facilitating portion for facilitating deformation in the vehicle width direction of the Na hollow lip is formed. 2. The corner hollow lip portion is open to the outside on an extension of the glass contact lip, and is a slit which is an easily deformable portion from the open end of the corner hollow lip portion toward the glass contact lip. The door glass run according to claim 1, wherein a notch is formed. 3. A notch portion as an easily deformable portion for locally reducing the thickness of the corner hollow lip portion from the open end of the corner hollow lip portion to the glass contact lip side instead of the slit. The door glass run according to claim 1, wherein is formed.