JP2002264661A - Glass run - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a lip curved on a window glass opening face from having an undulant shape when the lip abuts on the window glass to be flexurally deformed. SOLUTION: This glass run is connected to a door waist weather strip installed to a lower side part of a window glass opening part along a door waist and is installed to a door sash part constituting the window glass opening part. The glass run has the lip 26 curved in a nearly arc shape on the opening face of the window glass opening part, connected to a seal lip provided in the door waist weather strip, and slidably abutting on a vehicle-outside side face of the window glass along the circumferential direction of the window glass opening part. The lip 26 is formed with thin thickness parts 44 each hollowed in a prescribed shape, at prescribed intervals along the circumferential direction of the window glass opening part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass run for an automobile.

[0002]

2. Description of the Related Art It has been widely known that a window glass arranged to be able to ascend and descend to a door of an automobile has a structure in which an outer peripheral edge is sealed along a window glass opening of the door.

For example, as shown in FIG. 10, a window glass 50 is sealed by a seal lip of a door waist weather strip 54 at a lower side of the window glass opening 52 along the door waist. The door sash section 56 is sealed by a glass run 58 attached to the door sash section 56.

A vertical portion 58a of the glass run along the vertical direction of the vehicle is provided with a lip 60 which is curved so as to be continuous with the rear end of the door waist weather strip 54 on the vehicle rear side and is connected to the seal lip. Has been
In the corner portion on the rear side of the vehicle body defined by the door waist and the door sash portion 56 of the window glass opening 52, the lip 60 is used to continuously and stably seal the outer side surface of the window glass 50 with the lip 60. Have been.

[0005]

In such a glass run 58, the window glass 50 abuts the lip 60 at the corner portion on the rear side of the vehicle body defined by the door waist and the door sash, and the lip is bent and deformed. At this time, a circumferential length difference occurs between the circumferential length of the tip of the lip 60 when the lip 60 is not bent and deformed and the circumferential length of the tip of the lip 60 when the lip 60 is bent and deformed, The tip side of the lip 60 becomes excessively thick and undulates, and the pressing force against the window glass 50 becomes uneven. That is, the wind glass 5
With respect to 0, a portion where the pressing force is locally increased occurs.

The sliding parts such as the lip 60 of the glass run 58 and the seal lip of the door waist weather strip 54 are coated with a surface treatment agent to enhance the slidability, but the pressing force against the window glass 50 is relatively small. The surface treatment material is liable to be worn at the portion where the window glass becomes large, and there is a case where the noise occurs due to the stick phenomenon or the sliding portion is involved as the window glass 50 slides.

Therefore, in order to improve the slidability on the window glass 50, as shown in FIG. 11, the surface of the lip 60 is planted with resin bristles. Incidentally, 61
Is a lip extending substantially linearly along the door waist, which seals the inner side surface of the window glass 50.

However, such a flocking process has a problem that the production cost of the grass run 58 is increased.

[0009]

SUMMARY OF THE INVENTION Therefore, the invention according to claim 1 is connected to a door waist weather strip attached to a lower side of a window glass opening along a door waist, and the window glass opening is provided. A glass run attached to a door sash portion constituting the portion, curved substantially in an arc shape on the opening surface of the window glass opening portion, connected to a seal lip provided on the door waist weather strip, and In a glass run provided with a lip slidably in contact with the outer surface of the window glass along the circumferential direction of the opening, the lip is provided with a thin-walled portion cut into a predetermined shape around the periphery of the window glass opening. It is characterized by being formed at predetermined intervals along the direction. The surface of the lip is usually coated with a surface treatment agent in order to improve the slidability with the window glass. Since a plurality of thin portions are formed on the lip, the circumferential length of the lip tip side when the window glass is not in contact with the lip tip side when the lip is bent and deformed by contact with the window glass. The excess thickness on the lip tip side due to the difference in circumference from the circumference is alleviated and absorbed by these thin portions. Therefore, the pressing force of the lip tip side against the window glass does not locally increase.

According to a second aspect of the present invention, in the first aspect of the present invention, each of the thin portions is formed such that one side is a triangle parallel to a ridgeline of the tip of the lip. I have.

According to a third aspect of the present invention, in the first or second aspect of the invention, each of the thin portions is located closer to a base end of the lip than a ridgeline of a tip of the lip. The thickness of the edge is formed to be uniform along the circumferential direction of the window glass opening and to be thicker than each of the thin portions.

The invention described in claim 4 is the second or third invention.
In the invention described in the above, each thin portion, the closer to the substantially central position in the longitudinal direction of the lip along the circumferential direction of the window glass opening, the one side of the triangle along the leading edge of the lip It is characterized in that it is formed to have a relatively short length.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing a rear side of a vehicle body with respect to a window glass opening 4 in a front door 2 of an automobile, and corresponds to a portion A in FIG. 2 showing a side view of the automobile.

At the lower side of the window glass opening 4 along the door waist, a door waist weather strip 6 made of rubber or resin material is attached.
A glass run 10 made of rubber or resin material is attached to the door sash 8.

The glass run 10 includes a glass run upper side 12 arranged along the roof of the vehicle body from the front pillar.
A grass run vertical portion 14 arranged along the vehicle vertical direction, a grass run upper side portion 12 and a grass run vertical portion 14
Substantially L-shaped corner portion 16 for connecting
And

The glass run vertical portion 14 is composed of a main body portion 18 (details will be described later) extruded to have substantially the same cross-sectional shape, and molded portions 20a and 20b (details described later).

The main body 18 is arranged to extend below the door waist in order to guide the window glass 22 up and down.

The molded parts 20a, 20b are
6 in the range from the upper end of the main body 18 connected to the main body 18 to a portion located on an extension of the door waist of the main body 18.
At the lower side of the window glass opening 4, and is connected to the door waist weather strip 6 via an end cap 24.

The molded portion 20a located outside the vehicle is provided with a lip 26 formed at a predetermined position above the door waist.
The lip 26 is curved in a substantially arc shape on the opening surface of the window glass opening 4 and is continuous with the sealing lip 6 a of the door waist weather strip 6.

That is, the lip 26 seals the outer side surface 22a of the window glass 22 at the lower corner of the window glass opening 4 on the vehicle rear side. The surface of the lip 26 is coated with a resin surface treatment agent.

FIG. 3 is a sectional view taken along the line BB of FIG.

The main body 18 opposes an inner side wall 28 facing the inner side surface 22 b of the window glass 22, an outer side wall 30 facing the outer side surface 22 a of the window glass 22, and an outer peripheral end surface of the window glass 22. Bottom wall 3 connected to the base end of vehicle interior side wall 28 and the base end of vehicle exterior side wall 30
2 and has a substantially U-shaped cross section.

At the tip of the vehicle inner side wall 28, the U
Inner lip 3 protruding into the V-shaped space and slidably sealing the inner side surface 22b of the window glass 22
4 are formed. An outer lip 38 protruding into the U-shaped space of the main body 18 and slidably sealing the outer surface 22 a of the window glass 22 is formed at the tip of the outer wall 30.

A molded part 20a is joined to the leading edge of the vehicle outer side wall 30, and a molded part 20b is joined to the leading edge of the vehicle inner side wall 28.

At this cross-sectional position, the molded portion 20a is formed solely of an outer molding 40 having a substantially L-shaped cross section which is joined to the leading edge of the outer wall 30 and is exposed to the outside of the vehicle. The outer molding 40 forms an outer flange housing portion having a substantially U-shaped cross section with the outer wall 30, and the outer flange 35 of the door sash portion 8 is sandwiched by the outer flange housing portion. .

The molded portion 20b has a substantially U-shaped cross-section at this cross-sectional position, and is formed solely of the inner molding 36 which clamps the inner flange 37.

FIG. 4 is a sectional view taken along the line CC of FIG.

At this cross-sectional position, the molded portion 20a
An outer molding 40 having a substantially L-shaped cross section, which is joined to the leading edge of the outer wall 30 and exposed to the outside of the vehicle, and an inner peripheral side of the window glass opening 4 from near the joint of the outer molding 40 and the outer wall 30. And a lip 26 that slidably seals the vehicle outer side surface 22a of the window glass 22. The molded part 20b has substantially the same shape as that of FIG.

FIG. 5 is a sectional view taken along line DD of FIG.

At this cross-sectional position, the molded portion 20a
A support wall 42 joined to the leading edge of the vehicle exterior wall 30 and a vehicle exterior molding 40 having a substantially L-shaped cross section and exposed outside the vehicle;
Extending from the exterior molding 40 toward the inner peripheral side of the window glass opening 4, and the exterior surface 2 of the window glass 22.
And a lip 26 for slidably sealing 2a.
A vehicle-shaped outer flange housing portion is formed. More specifically, the main body portion 18 is extended to the lower part of the door waist along the vehicle vertical direction to guide the raising and lowering of the window glass 22, and the outer molding 40 of the molded portion 20a is connected to the door waist weather strip 6. For this purpose, it is formed so as to be curved substantially in an arc along the outer shape of the window glass opening 4.

That is, the main body 18 and the outer molding 40
Is separated from the main body 18 and the outer molding 40.
Are connected to each other via a support wall 42 substantially parallel to the vehicle outer side wall 30. The support wall 42 is formed in a substantially triangular shape when viewed from the side of the vehicle (see FIGS. 1 and 2 and FIG. 7 to be described later).
In the corner portion on the vehicle rear side of the lower side, the outer molding 40 is connected to the oblique side of the triangle.

That is, the lip 26 provided on the molded portion 20a is generally curved in a substantially arc shape on the opening surface of the window glass opening 4 with the curvature of the outer molding 40.

The molded portion 20b is also composed of only the inboard molding 36 which sandwiches the inboard flange 37 having a substantially U-shaped cross section even at this sectional position.

FIG. 6 is a cross-sectional view taken along the line EE of FIG. 2, and is a cross-sectional view of the molded portion 20 near the end of the door waist weather strip 6.

At this cross-sectional position, the molded portion 20a
A support wall 42 connected to the vehicle exterior wall of the main body in the direction perpendicular to the paper surface of FIG. 6, an exterior molding 40 having a substantially L-shaped cross section, and a window glass opening from near the joint between the exterior molding 40 and the supporting wall 42. The lip 26 extends toward the inner peripheral side of the portion 4 and slidably seals the outer side surface 22a of the window glass 22.

In this cross-sectional position, the molded portion 20b is provided with a vehicle interior molding having a substantially U-shaped cross section and the window glass 2.
And an inner lip 45 for slidably sealing the inner side surface 22b of the vehicle. Incidentally, reference numeral 47 in the drawing denotes a door trim which becomes a lining of the door.

FIG. 7 is a perspective view of the glass run vertical portion 14 located at the lower corner of the window glass opening 4 on the rear side of the vehicle as viewed from the inside of the vehicle.
FIG. 9 is a cross-sectional view taken along the line GG of FIG. 7.

A plurality of thin portions 4 of the same shape, which are formed in a substantially isosceles triangular shape, are provided on the inner side surface 43 of the lip 26 facing the window glass 22 formed on the molded portion 20a.
4 are formed.

The thin portions 44 are formed on the lip 26 at predetermined intervals along the circumferential direction of the glass run opening 4.

Here, if one side having a length different from the other two sides of the isosceles triangle is defined as the base, in each thin portion 44, the base is parallel to the ridge 46 at the tip of the lip 26, and It is located closer to the lip 26 than 46.

That is, the bottom side of each thin portion 44 is the lip 2
Since the lip 26 is located closer to the base end of the lip 26 than the ridge line 46 at the end of the sixth end, the tip end edge of the lip 26 is uniformly and relatively thick along the circumferential direction of the window glass opening 4.

In the glass run 10 configured as described above, since the plurality of thin portions 44 as described above are formed in the lip 26 in advance, the excess portion at the tip side of the lip 26 is changed to the plurality of thin portions 44. As a result, the lip 26 does not become wavy due to the excess space at the tip side of the lip 26.

Accordingly, the lip 26 does not locally contact the window glass 22 with a large pressing force, and the durability of the surface treatment agent applied to the surface of the lip 26 is relatively improved, and the surface treatment agent is peeled off. As a result, it is possible to surely prevent the lip 26 from becoming entangled or generating abnormal noise due to the stick phenomenon.

Since the durability of the surface treatment agent applied to the surface of the lip 26 is relatively improved, there is no need to implant resin hairs on the surface of the lip 26, and the glass run 1
0 can be reduced as a whole.

Further, since the thin portion 44 is formed in a triangular shape along the bottom edge of the lip 26, the lightening width of the lip 26 at the tip side, which is more likely to be excessive, is smaller than that of the lip 26 at the base end side. As a result, the excess thickness when the lip 26 is bent and deformed can be more reliably prevented.

It should be noted that the thinner portion 44 is located closer to the longitudinal center of the lip 26 along the circumferential direction of the window glass opening 4, in other words, the starting point P of the curve of the outer molding 40. If the length of one side of the triangle along the ridge line 46 at the tip of the lip 26 is relatively shorter as the center portion between the curve and the end point position Q of the curve, that is, the center position of the arc PQ, It is possible to more effectively prevent the excess thickness when the flexure 26 is deformed.

[0048]

According to the present invention, a thin portion is formed on the lip, and even if the lip abuts on the window glass and bends and deforms, the tip of the lip does not become excessively thin. Since the pressing force is not locally increased, the durability of the surface treatment agent applied to improve the slidability of the lip surface is improved, and the lip is caught by the window glass, It is possible to reliably prevent abnormal noise from being generated when the slider slides on the lip.

By improving the durability of the surface treating agent, it is not necessary to improve the slidability of the lip by performing a flocking process on the lip surface in a separate step, so that the cost can be reduced as a whole.

Further, if the thin portion is formed as in the second to fourth aspects of the present invention, it is possible to more effectively prevent the excess portion on the lip tip side.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a portion A in FIG. 2;

FIG. 2 is a side view of an automobile door.

FIG. 3 is a sectional view taken along the line BB of FIG. 1;

FIG. 4 is a sectional view taken along the line CC of FIG. 1;

FIG. 5 is a sectional view taken along line DD of FIG. 1;

FIG. 6 is a sectional view taken along the line EE in FIG. 1;

FIG. 7 is a perspective view of a vertical portion of a glass run located at a corner portion on a vehicle rear side of a lower side portion of a window glass opening as viewed from the inside of the vehicle, and is a perspective view showing a main part of the present invention.

FIG. 8 is a sectional view taken along line FF of FIG. 7;

FIG. 9 is a sectional view taken along the line GG of FIG. 7;

FIG. 10 is a side view of an automobile door.

11 is a sectional view taken along line HH of FIG.
Sectional drawing which shows the conventional lip shape.

[Explanation of symbols]

 26: Lip 44: Thin part

Claims (4)

[Claims] 1. A glass run connected to a door waist weather strip attached to a lower side of a window glass opening along a door waist, and attached to a door sash portion constituting the window glass opening, It is curved in a substantially arc shape on the opening surface of the window glass opening, is connected to a seal lip provided on the door waist weather strip, and slides on the vehicle outer surface of the window glass along the circumferential direction of the window glass opening. In the glass run provided with a lip that movably abuts, the lip is formed with thin-walled portions that are lightened in a predetermined shape at predetermined intervals along a circumferential direction of the window glass opening. Grass run. 2. The glass run according to claim 1, wherein each of the thin portions is formed so that one side is a triangle parallel to a ridge line of the tip of the lip. 3. The thin portion is located closer to the base end of the lip than the ridge line of the tip of the lip, and the thickness of the tip edge of the lip is one along the circumferential direction of the window glass opening. The glass run according to claim 1 or 2, wherein the glass run is formed to have a large thickness as compared with each of the thin portions. 4. The thinner the thinner portion, the closer to the longitudinal center of the lip along the circumferential direction of the window glass opening, the longer the length of one side of the triangle along the leading edge of the lip. The glass run according to claim 2 or 3, wherein the glass run is formed to be relatively short.