JP2000318459A - Door glass run - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate uncomfortable sense of a driver by preventing flapping sounds at the end of a window glass while running on a bad road, and precluding emission of flowing sounds from a hollow part in a door glass run. SOLUTION: A resilient holding part 32 to embrace the whole of side faces 6A and 6B of the end 6 of a window glass 5 is provided on the inside surface of the body part 31 having a U-shaped section of a door glass run 30. A glass sliding part 33 having a low frictional coefficient to make slide contacting with the side faces 6A and 6B of an end part 6 of the window glass 5 is formed integrally on the inside surface of the holding part 32. Glass sliding parts 50 and 51 having a low frictional coefficient to make slide contacting with the side faces 6A and 6B of the end part 6 are provided on the surfaces of an inner lip 37 and outer lip 38 formed at the foremost edges of the side walls 35 and 36 of the body 31 of the glass run.

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 for sealing between a door sash of an automobile door and an end of a window glass.

[0002]

2. Description of the Related Art A door glass run of this type is known, for example, from Japanese Patent Application Laid-Open No. Hei 10-226238.

Referring to FIGS. 2 and 3, the door glass run 1 is a door body 3 of an automobile door 2.
, Which guides and supports the end portion 6 of the window glass 5 of the vehicle door 2 so as to be able to move up and down, and seals between the pillar portion and the end portion 6 of the window glass 5. are doing.

As shown in FIG. 3, the door glass run 1 has a metal core 7 formed in a U-shape in cross section. The core 7 is composed of a bottom wall 8 and a bottom wall 8. , And the two side walls 9, 10 rising vertically from both side edges of the window glass 5.

[0005] Each of the opposing tip edges 1 of the side walls 9 and 10
Seal portions 14 and 15 for supporting the end portion 6 of the window glass 5 are provided on 2 and 13. The seal portions 14 and 15 are formed of sponge rubbers 16 and 17 having a mountain-shaped cross section provided on the inner peripheral surface of each of the tip edges 12 and 13 and a thin wall provided on the outer peripheral surface of the sponge rubbers 16 and 17. Solid rubbers 18 and 19;
8 and 19 are formed from the tip edges 12 and 13 to the vertices of the sponge rubbers 16 and 17. Therefore,
Between the end portions 18a, 19a of the solid rubbers 18, 19 and the side walls 9, 10, the sponge rubbers 16, 1 are provided.
The bottom wall 8 side of 7 is exposed.

A buffer 21 is provided on the inner peripheral surface of the bottom wall 8 to absorb the contact with the end surface of the window glass 5. The buffer 21 includes a sponge rubber 22 provided on the inner peripheral surface of the bottom wall 8, a solid rubber 23 provided on the upper surface of the sponge rubber 22 in a cantilevered state, and a sponge rubber 22 provided on the upper surface of the solid rubber 23. And the hard rubber 24 provided.

[0007] When the end 6 of the window glass 5 is displaced toward the vehicle interior A due to vibrations during running of the vehicle,
When the sponge rubber 16 is elastically deformed, while the end portion 6 is displaced to the outside B of the vehicle compartment, the sponge rubber 17 is elastically deformed, and the sponge rubbers 16 and 17 are elastically deformed so that the directions A, The vibration of B is absorbed.

[0008]

However, since the conventional door glass run 1 has hollow portions 11A and 11B between the bottom wall 8 side of the sponge rubbers 16 and 17 and the hard rubber 24, the conventional door glass run 1 is bad. When driving on the road, windshield 5
When a large vibration is input to the end portion 6 and the end portion 6 is greatly displaced toward the vehicle interior A, the sponge rubber 16 is excessively bent and deformed into the hollow portion 11A, and the side surface 6B of the end portion 6 is deformed.
When the end portion 6 is largely displaced to the outside B of the vehicle compartment while the rubber is separated from the solid rubber 19, the sponge rubber 17 is excessively bent and deformed into the hollow portion 11B, and the side surface 6A of the end portion 6 is deformed.
Is separated from the solid rubber 18, whereby the end 6
Rattling may occur. For this reason, a rattling sound such as a hitting sound or a take-off sound is generated at the end portion 6 of the window glass 5, which may give a crew member discomfort.

Further, air in the door main body 2 may enter the hollow portions 11A and 11B and generate air flow during running of the vehicle. For this reason, the flow noise is transmitted to the vehicle interior side A, which may cause discomfort to the crew.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances.
A substantially U-shaped glass run main body fitted and fixed to a door sash of an automobile door and accommodating an end portion of the window glass therein, and formed integrally with each end edge of both side walls of the glass run main body; In both sides of the end portion of the door glass run, which is formed of an elastically deformable lip that slides in contact with the door sash and the end portion of the window glass, the inner lip of the glass run body covers the entire inner peripheral surface of the glass run body. An elastic holding portion for holding the entire side surfaces of the end portion of the window glass is provided.

Therefore, the elastic holding portion is solidly interposed between the entire inner peripheral surface of the glass run main body and the entire both side surfaces of the end portion of the window glass. Is regulated. In other words, even if the end of the window glass is largely displaced when traveling on a rough road, the displacement is suppressed by the elastic holding portion, so that the both side surfaces of the end and the inner peripheral surface of the elastic holding portion are separated from each other. Is prevented. For this reason, rattling of the end portion of the window glass when traveling on a rough road is prevented, thereby preventing rattling noise of the end portion. Further, since the elastic holding portion is solidly interposed between the entire inner peripheral surface of the glass run main body and the entire both side surfaces of the end portion of the window glass, the intrusion of air is reliably prevented. The flow of air between both surfaces is reliably prevented. Furthermore, since the noise outside the vehicle cabin wraps around the end surface of the window glass, even if it tries to invade the interior of the vehicle cabin, the intrusion is reliably prevented by the elastic holding portion.

The invention according to claim 2 is characterized in that a glass sliding portion having a low friction coefficient is provided on the inner peripheral surface of the elastic holding portion so as to be in sliding contact with both side surfaces of the end portion of the window glass.

Therefore, the frictional resistance between the inner peripheral surface of the elastic holding portion and both side surfaces of the window glass is reduced, thereby improving the slidability of the end portion.

The invention according to claim 3 is characterized in that a glass sliding portion having a low friction coefficient is provided on the surface of the lip so as to be in sliding contact with both side surfaces of the end portion of the window glass.

Accordingly, the frictional resistance between the surfaces of both lips and both side surfaces of the end portion of the window glass is reduced, whereby the slidability of the end portions is further improved.

[0016]

FIG. 1 shows a door glass run 30 according to an embodiment of the present invention.
The vehicle door 2 is fitted and fixed to a channel portion 25 of a door sash 4 formed on a pillar portion of a door body 3 of the vehicle door 2, and guides and holds the end portion 6 of the window glass 5 of the vehicle door 2 so as to be able to move up and down. At the same time, the space between the channel portion 25 and the end 6 of the window glass 5 is sealed.

The door glass run 30 is integrally formed by extrusion molding, and is fitted into and fixed to the channel portion 25. The glass run main body 31 has a U-shaped vertical section.
A U-shaped vertical elastic holding portion 32 provided on the entire inner peripheral surface of the glass run main body 31, and a U-shaped vertical glass sliding portion 33 provided on the entire inner peripheral surface of the elastic holding portion 32. And

The glass run main body 31 is made of a rubber material or a thermoplastic elastomer, for example, solid rubber, olefin-based thermoplastic elastomer or the like. It has walls 35 and 36. This side wall 3
An inner lip 37 and an outer lip 38 which are inclined inward and are elastically deformable are integrally formed on the respective leading edges of the channel portions 25 and the window glass. A seal is formed between the end 5 and the end 6 to prevent intrusion of dust and the like from the outside.

The elastic holding portion 32 is made of a highly foamed sponge material such as a rubber material or a synthetic resin material, and is formed in a thick wall as a whole, and has a bottom wall 39 and the bottom wall 39.
And two side walls 40 and 41 which rise vertically from both side edges of the front side. The side walls 40, 41 are held by the entire inner peripheral surfaces 43, 44 of the side walls 35, 36 of the glass run main body 31, and the end portions of the window glass 5 via the glass sliding portion 33. 6 is elastically held. Therefore, both side walls 40 and 41 are solid between the entire inner peripheral surfaces 43 and 44 of the side walls 35 and 36 of the glass run main body 31 and the entire side surfaces 6A and 6B of the end portion 6 of the window glass 5. It is interposed in. Also, both side walls 4
In the tip direction of 0, 41, the convex portions 40a,
41a is formed, and the holding force of the end portion 6 of the window glass 5 with respect to both side surfaces 21 and 22 is strengthened. The side wall 40 on the vehicle interior side A is formed with a concave groove 45 at a front end edge thereof, so that the inner lip 37 can be easily elastically deformed inward.

The glass sliding portion 33 is made of a polymer material having a low coefficient of friction, such as polypropylene or polyethylene, and has a bottom wall 46 and both side walls 47 rising vertically from both side edges of the bottom wall 46. 48, and accommodates the end 6 of the window glass 5 therein. On the inner peripheral surface of the bottom wall 46, a convex stopper portion 49 which is elastically in contact with the end surface of the window glass 5 is formed, while on both side walls 47, 48, the inner peripheral surfaces 54, 55 5 are slidably in contact with both side surfaces 6A and 6B of the end portion 6 of the first embodiment. Further, a front end edge 51 of the side wall 48 of the vehicle exterior B, which is formed to be thin, covers the surface (inner peripheral surface) of the outer lip 38 to form a thin glass slide 51. An inner peripheral surface 53 of the moving member 51 is slidably slidably in contact with a side surface 6B of the end portion 6 of the window glass 5. On the surface (outer peripheral surface) of the inner lip 37 facing the outer lip 38, a thin-walled glass sliding portion 50 made of the polymer material having a low friction coefficient is provided. The outer peripheral surface 52 is slidably slidably in contact with the side surface 6A of the end portion 6 of the window glass 5.

Therefore, the door glass run 30 configured as described above operates as follows. That is, both side walls 40 and 41 of the elastic holding portion 32 are
1 between the entire inner peripheral surfaces 43, 44 of both side walls 35, 36 and the entire side surfaces 6A, 6B of the end 6 of the window glass 5.
Even if large vibrations in the vehicle interior and exterior directions A and B are input to the end portion 6 of the window glass 5, excessive bending deformation is restricted because of the solid interposition.

For this reason, even if the end portion 6 of the window glass 5 is largely displaced in the direction A inside the vehicle compartment during traveling on a rough road or the like, the displacement is suppressed by the side wall 40 of the elastic holding portion 32 while the end portion 6 is suppressed. Even if the portion 6 is largely displaced in the vehicle exterior B direction, the displacement is suppressed by the side wall 41 of the elastic holding portion 32.

Accordingly, both side surfaces 6A and 6B of the end portion 6 of the window glass 5 and both side walls 47 and 4 of the glass sliding portion 33 are provided.
8 is prevented from coming into contact with the inner peripheral surfaces 54 and 55. For this reason, rattling of the end 6 of the window glass 5 when traveling on a rough road is prevented, and thereby rattling noise such as a hitting sound or a detachment sound of the end 6 is prevented.

Further, both side walls 40 and 41 of the elastic holding portion 32 are provided.
Are the entire inner peripheral surfaces 43 and 44 of both side walls 35 and 36 of the glass run main body 31 and both side surfaces 6 of the end 6 of the window glass 5.
A and 6B are interposed in a solid state, so that the intrusion of air in the door main body 2 is reliably prevented, whereby the flow of air between the two surfaces 43, 6A, 44 and 6B is ensured. Is prevented. Further, even if the noise on the outside B of the vehicle compartment tries to enter the interior A of the vehicle compartment around the end face of the window glass 5, the side walls 40 and 41 of the elastic holding portion 32 cause the noise.
Its intrusion is reliably prevented.

Then, both side walls 47 of the glass sliding portion 33,
Since 48 is made of a polymer material having a low coefficient of friction, the frictional resistance generated between the inner peripheral surfaces 54, 55 of the side walls 47, 48 and both side surfaces 6A, 6B of the end portion of the window glass is small, Thereby, the slidability of the end portion 6 is improved.

The glass sliding portion 50 provided on the inner lip 37 and the glass sliding portion 51 provided on the outer lip 38 are also made of a polymer material having a low friction coefficient. The frictional resistance generated between the inner and outer peripheral surfaces 52, 53 of the window 51 and both side surfaces 6A, 6B of the end portion 6 of the window glass 5 is small, whereby the slidability of the end portion 6 is further improved.

It should be noted that the present invention is not limited to the above-described embodiment.
The end 6 of the window glass 5 can be accommodated inside the bottom wall 39 and the side walls 40 and 41 of the elastic holding portion 32.
In this case, the inner peripheral surfaces of both side walls 40 and 41 of the elastic holding portion 32 are directly connected to both side surfaces 6A and 6A of the end portion 6 of the window glass 5.
B is slidably in contact with the entire B.

[0028]

As is apparent from the above description, according to the present invention, excessive bending deformation is restricted when the vehicle is running on a rough road or the like, so that the end of the window glass is prevented from rattling.
Therefore, the rattling sound of the end portion of the window glass is prevented, thereby preventing the crew from feeling uneasy. Also,
Flow noise between the inner peripheral surface of the glass run main body and both side surfaces of the end portion of the window glass is prevented, and thereby discomfort to the crew is eliminated. Furthermore, even if noise outside the vehicle compartment tries to enter the interior of the vehicle compartment by wrapping around the end surface of the window glass, the entry is reliably prevented, thereby improving the sound insulation.

According to the second aspect of the present invention, since the glass sliding portion is provided on the inner peripheral surface of the elastic holding portion, the slidability of the end portion of the window glass is improved, so that the end portion of the window glass can be smoothly moved. Elevation becomes possible.

According to the third aspect of the present invention, since the glass sliding portions are provided on the surfaces of both the lips, the slidability of the ends of the window glass is further improved, whereby the ends can be more smoothly raised and lowered. Becomes possible.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a door glass run according to an embodiment of the present invention.

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

FIG. 3 is a longitudinal sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Automatic door 4 ... Door sash 5 ... Wind glass 6 ... End of wind glass 6A ... Side of the end of the wind glass 6B ... Side of the end of the wind glass 30 ... Door glass run 31 ... Glass run main body 32 ... Elasticity retention Part 33 ... Glass sliding part 34 ... Bottom wall 35 ... Side wall 36 ... Side wall 37 ... Inner lip 38 ... Outer lip 50 ... Glass sliding part 51 ... Glass sliding part

Claims (3)

[Claims] 1. A substantially U-shaped glass run main body fitted and fixed to a door sash of an automobile door and accommodating an end portion of a window glass therein, and integrally formed on each end edge of both side walls of the glass run main body. And a door glass run that seals between the door sash and the end portion of the window glass by both elastically deformable lips on which both side surfaces of the end portion of the window glass are in sliding contact with each other. A door glass run provided with elastic holding portions for holding the entire side surfaces of the end portion of the window glass on the entire inner peripheral surface. 2. A door glass run according to claim 1, wherein a glass sliding portion having a low coefficient of friction is provided on an inner peripheral surface of said elastic holding portion so as to be in sliding contact with both side surfaces of an end portion of said window glass. . 3. The door glass run according to claim 1, wherein a glass sliding portion having a low coefficient of friction is provided on a surface of the lip so as to be in sliding contact with both side surfaces of an end of the window glass.