JPH11198661A - Glass rn structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass run structure which can reduce the generation of hammering even when a door glass is vibrated in a vehicle cross direction in such a condition as the door glass is operated slightly in its opening direction. SOLUTION: A glass run 20 is provided with a door glass guide part 21 whose cross section is U-shaped for guiding elevation of the edge of a door glass 13, a welt part 22 which is formed continuously at the compartment inner side of the door glass guide part 21, and formed into an U-shaped in an opposite direction to the door glass guide part 21, an inner lip part 23 formed at the front end of the compartment inner side of the door glass guide part 21, and an output lip part 24 formed at the front end of the compartment outer side of the door glass guide part 21. The inner lip part 23 is formed at an offset position toward the inside of the door glass guide part 21 to the output lip part 24 when viewed from a vehicle side surface, and is bent so as to have a roughly V-shaped cross section protruding in the door glass guide part 21 direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass run structure which is attached to a window frame of a door sash of an automobile and guides a door glass up and down.

[0002]

2. Description of the Related Art A conventional glass run structure is disclosed, for example, in Japanese Patent Application Laid-Open No. 5-278472. FIG. 3 shows a vehicle door to which a conventional claslan described in this publication is attached. A door sash 2 serving as a window frame is provided integrally with the door body 1 above the waist line of the door body 1, and a glass run 4 for supporting the door glass 3 so as to be able to move up and down is provided on the inner peripheral side of the door sash. Is attached.

As shown in FIG. 4 which is a cross-sectional view taken along the line IV-IV of FIG.
Attached to the window frame flange 2a. The glass run 4 is composed of a metal core 4a and a synthetic resin layer 4b extruded and molded together with the core 4a, and has a substantially “U” -shaped cross section for guiding the edge of the door glass 3 up and down. A door glass guide portion 5; a welt portion 6 which is provided continuously on the vehicle interior side of the door glass guide portion 5 and is formed in a “U” shape opposite to the door glass guide portion 5; And an outer lip portion 8 formed at a front end of the door glass guide portion 5 outside the vehicle compartment.

When the door glass 3 is closed, as shown by a broken line in FIG. 4, the door glass 3 is located inside the door glass guide portion 5, the inner lip portion 7 is in contact with the inner surface, and the outer lip portion is on the outer surface. 8 come into contact with each other and are held between these lip portions. When the door glass 3 is slightly operated in the opening direction, the end face of the door glass 3 is displaced in a direction to escape from the door glass guide portion 5 as shown by a solid line in FIG. In this state, the contact of the outer lip portion 8 with the door glass 3 has already been cut off, and only the inner lip portion 7 comes into contact with the inner surface of the door glass.

[0005]

However, in the above-mentioned conventional glass run structure, when the door glass is operated in the opening direction, the door glass 3 and the inner lip portion 7 are separated from each other in the vehicle width direction. When the door glass 3 vibrates in the vehicle width direction indicated by an arrow A in the drawing immediately before or immediately after leaving, the inner surface of the door glass 3 and the inner lip portion 7 separate and contact repeatedly, and a tapping sound is generated at the time of contact. There was a problem that it occurred and was harsh.

The present invention has been made in view of the above-described problems of the prior art, and is intended to be used even when the door glass vibrates in the vehicle width direction while the door glass is slightly opened. It is an object of the present invention to provide a glass run structure that can reduce generation of sound.

[0007]

In order to achieve the above object, a glass run structure according to the present invention is attached to a window frame flange of a door sash of a vehicle, and has a cross section having a substantially rectangular cross section for guiding the edge of the door glass up and down. '' -Shaped door glass guide portion, an inner lip portion formed at the front end of the door glass guide portion on the vehicle interior side, and an outer lip portion formed at the front end of the door glass guide portion outside the vehicle compartment. In the glass run structure extruded with the core material, the inner lip portion is provided at an offset position toward the inside of the door glass guide portion with respect to the outer lip portion as viewed from the side of the vehicle, and in the direction of the door glass guide portion. When the door glass edge is not in contact with the door glass in the middle of raising and lowering the door glass, the tip of the inner lip portion is bent. Characterized by being configured to be positioned in the vehicle exterior side than glass.

Further, in the closed state of the door glass, the inner lip portion may be configured such that the vicinity of the bent point of the "-" shape abuts on a step formed on the door glass guide portion to seal.

The inner lip portion has a base straight portion on the vehicle interior side from the bending point and a front straight portion on the vehicle interior side from the bending point at the bending point of the "-" shape. Having. In the non-contact state of the door glass, the base linear portion is directed in a direction into the door glass guide portion, and the distal linear portion is directed in a direction exiting from the door glass guide portion at a bending point. ing. Furthermore, when the inner lip portion is in the closed state of the door glass, the tip contacts the inner surface of the door glass, and when the door glass is operated in the opening direction, the end surface of the door glass is displaced in a direction to escape from the door glass guide portion. In addition, it is desirable that the outer surface of the linear portion at the tip be disposed so as to contact the end surface of the door glass.

[0010]

In the above construction, the door glass is located inside the door glass guide portion in the closed state, the inner lip contacts the inner surface, the outer lip contacts the outer surface, and these lip portions It is held in a state of being sandwiched between. When the door glass is slightly operated in the opening direction, the end surface of the door glass is displaced in a direction to escape from the door glass guide. In this state, the outer lip portion has already been disconnected from the door glass, and the outer surface of the tip straight portion of the inner lip portion is in contact with the door glass end surface. The door glass is displaced while being in contact with the inner lip, and it is unlikely that a tapping sound is generated due to repeated separation and contact.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a glass run structure according to the present invention will be described below. FIG. 1 is a sectional view showing an embodiment of a glass run structure according to the present invention, and FIG. 2 is a perspective view showing a vehicle body to which the glass run structure of FIG. 1 is attached.

As shown in FIG. 2, a door sash 11 serving as a window frame is provided integrally with the door body 10 above the waist line of the door body 10 of the rear door of the vehicle. A glass run 20 that supports the door glass 13 so as to be able to move up and down is attached to the side.

As shown in FIG. 1, which is a cross-sectional view taken along the line II of FIG.
Attached to the window frame flange 11a. The glass run 20 is made of a metal core material 20a such as iron.
And a synthetic resin layer 20b made of rubber or the like which is extruded and molded together with the core material 20a. Functionally, the door glass 13 has a substantially "U" -shaped cross section for guiding the edge of the door glass 13 up and down. Guide part 21 and door glass guide part 21
And a welt portion 22 formed in a U-shape opposite to the door glass guide portion 21 and an inner lip formed at a front end of the door glass guide portion 21 on the vehicle interior side. A portion 23 and an outer lip portion 24 formed at a front end of the door glass guide portion 21 outside the vehicle compartment.

The welt portion 22 is fixed so as to sandwich the window frame flange portion 11a of the door sash 11, and fixes the glass run 20 to the door sash 11. Further, between the welt portion 22 of the glass run 20 and the door glass guide portion 23, a step portion 25 for offsetting the door glass guide portion 23 to the outside of the vehicle compartment is formed.

[0015] The inner lip portion 23 is
4 is provided at an offset position toward the inside of the door glass guide portion 21 in a vehicle side view. Further, the inner lip portion 23 is formed so as to be bent in a substantially “C” -shaped cross section that is convex in the direction of the door glass guide portion 21. It has a base straight portion 23b on the vehicle interior side and a tip straight portion 23c outside the vehicle interior from the bending point 23a. In the non-contact state of the door glass 13, as shown by a solid line in FIG. 1, the base straight portion 23b is directed in a direction to enter the door glass guide portion 21, and the tip straight portion 23c is bent. It is directed in the direction of exiting from the door glass guide 21 at the point 23a.

Incidentally, on the rear side of the rear door shown in FIG.
Since the door glass 13 is formed obliquely, focusing on one cross section, the rear end face is displaced in the vehicle front-rear direction as the door glass 13 moves up and down. That is, when the door glass 13 is closed, the broken line 13 'in FIG.
As shown in the figure, the rear end face of the door glass 13 is positioned inside the door glass guide section 21 and the rear end face of the door glass 13 is operated as the door glass 3 is operated in the opening direction.
Displaced in a direction to escape from 1 and indicated by a broken line 13 ",
Then, it is displaced to the position shown by the solid line 13.

Next, the displacement of the inner lip portion 23 and the outer lip portion 24 due to the displacement of the door glass 13 in the glass run 20 will be described. When the edge of the door glass 13 is not in contact with the door glass 13 while the door glass 13 is being moved up and down, the inner lip 23 has its tip located outside the door glass 13 as shown by a solid line in FIG. It is configured to be located.

When the door glass 13 is in the closed position indicated by the broken line 13 ', the inner lip 23
The outer lip portion 24 abuts on the surface of the door glass 13 outside the vehicle interior. Each lip part
The door glass 13 is bent inside the door glass guide portion 21 against the elastic force, and the door glass 13 is held in a state sandwiched by these lip portions 23 and 24. From this state, for example, even if the door glass 13 moves in the vehicle interior direction as shown by a three-dot line in FIG. 1 due to a negative pressure in the vehicle interior, the inner lip portion 23 is moved as shown by a four-dot line. And there is no danger that the bottom will directly reach the inner side wall of the door glass guide portion 21.
In the closed position, the inner lip 2
The vicinity of the bent point 23a of the "<"-shaped "3" comes into contact with and seals a step portion 25 formed on the door glass guide portion 21. As a result, a closed space is newly formed between the inside and outside of the vehicle compartment, and a double seal is formed to reduce wind noise caused by wind wraparound and the like, thereby improving sound insulation.

In a state where the door glass 13 is slightly operated in the opening direction and the rear end face of the door glass 3 is displaced in the direction of escaping from the door glass guide portion 21 as shown by a broken line 13 ", the outer lip portion 24 is already in the door glass state. Then, the inner lip 23 is brought into contact with the inner surface of the door glass 23. At this time, the inner lip 23 is attached to the outer surface of the front straight portion 23c by the door glass 13.
Is disposed in contact with the end face of Accordingly, even when the door glass 13 vibrates in the vehicle width direction indicated by the arrow A in the drawing, the door glass 13 is displaced in a state of being in contact with the inner lip portion 23, and a tapping sound due to repeated separation and contact is unlikely to occur. .

In the state where the door glass 13 is further operated in the opening direction and the rear end face of the door glass 3 has escaped from the door glass guide portion 5 as shown by a solid line 13 in the drawing, not only the outer lip portion 24 but also the inner lip portion 23. Also moves away from the door glass 13. Door glass 13 and inner lip 23
When the door glass 13 separates in the vehicle front-rear direction, even if the door glass 13 vibrates in the vehicle width direction immediately before and immediately after the separation, a tapping sound due to repeated separation and contact hardly occurs.

The door glass 13 and the inner lip 23
In a state in which the front straight portion 23c is close to an angle parallel to the vehicle width direction, the base straight portion 23b is located away from the door glass 13, and the door glass 13 is positioned in the vehicle width direction. Even when vibrating, the door glass 13 does not come into contact with the inner lip portion 23.

[0022]

As described above, according to the present invention, the inner lip portion is bent in a substantially "L" shape in cross section which is convex in the direction of the door glass guide portion, thereby enabling the door lip and the inner lip to be bent. When the door glass is slightly moved in the opening direction when the door glass is slightly opened and the door glass vibrates in the vehicle width direction when the door glass is separated, the sound is generated. Can be reduced.

[0023] Further, when the door glass is closed so that the vicinity of the "-"-shaped bent point of the inner lip portion comes into contact with and seals a step portion formed in the door glass guide portion, when the door glass is closed. A closed space is newly formed between the inside and the outside of the vehicle, so that wind wraparound and the like can be reduced, and the sound insulation can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a glass run structure according to an embodiment of the present invention, taken along line II of FIG. 2;

FIG. 2 is a perspective view showing a vehicle body to which the glass run of the embodiment is attached.

FIG. 3 is an explanatory diagram showing a door of a vehicle to which a conventional glass run is attached.

FIG. 4 shows a conventional glass run structure of FIG.
It is sectional drawing which follows the V line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Door sash 11a Window frame flange 20 Glass run 21 Door glass guide part 22 Welt part 23 Inner lip part 23a Bending point 23b Base straight part 23c Front straight part 24 Outer lip part

Claims (4)

[Claims] 1. A door glass guide having a substantially U-shaped cross-section, which is attached to a window frame flange of a door sash of a vehicle and guides an edge of a door glass up and down. An inner lip formed at the tip,
An outer lip portion formed at a front end of the door glass guide portion on the outside of the cabin, and a glass run structure formed by being extruded together with a core material, wherein the inner lip portion is viewed from a side of the vehicle with respect to the outer lip portion. At the offset position facing the inside of the door glass guide portion, the door glass edge portion is bent in the shape of a substantially "L" shaped cross section that is convex in the direction of the door glass guide portion. Wherein the end of the inner lip portion is located outside the vehicle compartment with respect to the door glass when the vehicle is in a non-contact state. 2. The closed state of the door glass, wherein the vicinity of the bent point of the inner lip portion in the shape of a letter "a" abuts so as to seal a step portion formed in the door glass guide portion. The glass run structure according to claim 1, wherein 3. The inner lip portion includes a base straight portion on the vehicle interior side from the bending point at a boundary of the “C” -shaped bending point,
A front end linear portion outside the vehicle compartment from the bending point, and in a non-contact state of the door glass, the base end linear portion is directed in a direction to enter the door glass guide portion, and The glass run structure according to claim 1, wherein the straight portion is oriented in a direction of exiting from the door glass guide portion at the bending point. 4. The inner lip portion, when the door glass is in a closed state, a tip thereof contacts an inner surface of the door glass, and as the door glass is operated in an opening direction, the end surface of the door glass becomes the door glass guide. 4. The glass run structure according to claim 3, wherein when displaced in a direction of escaping from the portion, the outer surface of the linear portion at the tip comes into contact with an end surface of the door glass. 5.