JP2002211247A - Glass run seal structure for vehicular door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass run seal structure for a vehicular door, assuring a sealing property between a door glass and a lip portion even when the door glass is dislocated to the outside of a vehicle. SOLUTION: The glass run seal structure for the vehicular door comprises the door glass 5 elevatably arranged in a window opening 1c formed of a door body 1a and a window frame 1b and a glass run 10 mounted on the window frame 1b, the glass run 10 having a body 11 in U-shaped cross section with a door glass insertion opening and a pair of inside and outside lip portions 12, 13 integrally formed at the opening lower edge of the body 11 for contacting the door glass 5. The body 11 is provided integrally with an energizing lip 20 having a tongue portion 20a elastically deformed by contacting the upper end face 5a of the door glass 5 when entering therein and a lower hanging portion 20b for energizing the inside lip portion 12 to the side of the door glass 5 following the elastic deformation of the tongue portion 20a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass run mounted on a window frame of a vehicle door, and more particularly to an improvement in a sealing structure between a glass run and a door glass.

[0002]

2. Description of the Related Art Generally, a door of an automobile has a window opening formed by a middle door body and a window frame, and a door glass is placed in the window opening in a fully closed position for closing the window opening. The window frame is provided so as to be able to ascend and descend from a fully open position where the window is opened to open the window opening, and a glass run for sealing between the window frame and a door glass is mounted.

FIG. 4 shows a conventional general glass-run seal structure. A glass run 50 is mounted on a wind frame 55 and has a U-shaped main body 5 with a downward cross section.
1 and inner and outer lip portions 52 and 53 integrally formed with the opening edge of the main body 51 (see, for example, Japanese Patent Application Laid-Open No. H11-220040). The tip portions of the outer and outer lip portions 52 and 53 abut each other when the door glass 54 does not enter, and when the door glass 54 enters, it elastically deforms and comes into pressure contact with the door glass 54, whereby the door glass 54 and the door glass 54 come into contact. The space between the glass run 50 is sealed.

[0004] Incidentally, when the door glass 54 is pulled toward the outside of the vehicle by a negative pressure generated outside the door during traveling, or when an electric power window is employed, the door glass 54 is in a fully closed position. When it rises, it may swing out of the vehicle and shift.

In this case, if the door glass 54 is pulled or shifted to the outside of the vehicle, the sealing property between the inner lip portion 52 and the door glass 54 deteriorates, and in some cases, rainwater or the like may enter the room. . Conventionally, in order to avoid such deterioration of the sealing property, the inner lip portion is made larger than the outer lip portion to ensure the sealing property when the door glass is shifted to the outside (for example, see Japanese Patent Application Laid-Open No. 9-1997).
-263138).

[0006]

However, when a structure in which the inner lip is made larger than the outer lip is employed as in the above-mentioned conventional seal structure, the size of the inner lip is limited. For this reason, it may not be possible to ensure the sealing performance depending on the above-described displacement of the door glass or the variation in the dimensions or assembling accuracy of the door components.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and has as its object to provide a glass run seal structure for a vehicle door which can ensure the sealing performance even when the door glass is shifted to the outside of the vehicle, for example. And

[0008]

According to a first aspect of the present invention, a door glass is provided in a window opening formed by a door body and a window frame so as to be able to move up and down, and the window frame has a door glass insertion opening. A glass run seal for a vehicle door, comprising a glass run having a U-shaped cross section and a pair of inner and outer lips formed integrally with the lower edge of the opening of the main body and abutting on the door glass. In the above structure, a tongue portion which is elastically deformed when the end face of the door glass comes into contact with the entrance of the door glass inside the main body portion, and one of the inner and outer lip portions is attached to the door glass along with the elastic deformation of the tongue portion. An urging lip having a downwardly urging downward portion is provided.

According to a second aspect of the present invention, in the first aspect, the tongue extends in a direction perpendicular to the elevating direction so as to face an end surface of the door glass, and the door glass moves up to the fully closed position. The hanging portion extends from the base of the tongue so as to face either the inner or outer lip, which is opposite to the sealing surface. It is characterized by having.

A third aspect of the present invention is characterized in that, in the first or second aspect, the biasing lip is formed integrally with a vehicle inner side wall in the main body.

[0011]

According to the glass run seal structure according to the first aspect of the present invention, the tongue which is elastically deformed by the entrance of the door glass, and one of the inner and outer lip portions is elastically deformed by the elastic deformation of the tongue. Since the biasing lip having the hanging portion biasing toward the door glass side is provided, the sealing property between the door glass and the lip portion can be improved without making the lip portion unnecessarily large unlike the related art. This allows, for example,
When the inner lip is biased by the biasing lip, the door glass is pulled outward by the negative pressure on the outside of the door generated during traveling, or the door glass is shifted outward by the power window. Also, the sealing property between the inner lip portion and the door glass can be ensured, and it is possible to prevent rainwater or the like from entering the room.

According to the second aspect of the present invention, the tongue is formed in a direction perpendicular to the elevating direction so as to face the end surface of the door glass, and when the door glass is moved up to the fully closed position, the bottom in the main body is formed. Since the tongue is in contact with the wall, the tongue seals between the end surface of the door glass and the main body, so that the sealing performance can be further improved.

Further, since the hanging portion is formed so as to extend from the base portion of the tongue portion so as to face either the inner or outer lip portion, which is opposite to the sealing surface, it is possible to seal with a simple structure.
The reliability with respect to sealing performance can be improved.

According to the third aspect of the present invention, since the biasing lip is formed integrally with the inner wall of the vehicle in the main body, it can be formed at the same time when the glass run is manufactured by extrusion or the like. The cost can be suppressed as compared with.

Further, since the biasing lip is formed on the inner side wall of the vehicle, the sealing function of the inner lip portion can be maintained even if the door glass is pulled to the outside of the vehicle or is shifted to the outside of the vehicle, as described above. .

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 3 are views for explaining a glass run seal structure of a vehicle door according to an embodiment of the present invention. FIG. 1 is a side view of a front door of an automobile, and FIG. 2 is a view of the front door. FIG. 3 is a cross-sectional rear view of the wind frame in a state where the door glass is not inserted, and FIG. 3 is a cross-sectional rear view of the wind frame in a state where the door glass is not inserted.

In FIG. 1, reference numeral 1 denotes a front door of an automobile. The front door 1 is disposed in a front door opening 2a formed in a side panel 2 constituting a vehicle body side portion.

The front door 1 is of a panel door type in which a door body 1a and a window frame 1b are integrally formed by joining a door outer panel 3 and a door inner panel 4 in the middle.

The door body 1a and the window frame 1b
A window opening 1c is formed, and the window opening 1c has a fully closed position where the door glass 5 closes the window opening 1c, and a fully open position where the window glass 5 is immersed in the door main body 1a and opens the window opening 1c. It is arranged to be able to ascend and descend between.

The outer edges 3a, 4a of the door outer panel 3 and the door inner panel 4 of the wind frame 1b are joined to each other by hemming, and the inner edges 3b, 4 are formed.
b is open with a gap in which a glass run 10 described later can be mounted. Downward U-shaped retainers 6 are attached to the openings of the inner edge portions 3b and 4b, respectively.
Are spot-welded to the inner edges 3b, 4b. 2 'is a front door opening 2a of the side panel 2.
A roof side rail forming an upper edge portion of the vehicle, and a weather strip 7 that is in contact with the wind frame 1b and seals the front door opening 2a is mounted on the roof side rail 2 '.

A glass run 10 extending over the entire length of the window frame 1b is mounted on the window frame 1b. The glass run 10 is made of an elastic member such as rubber or resin, and has a U-shaped main body 11 having a downward cross-section opening, and inner and outer lip portions 12 extending into the main body 11 from the lower edge of the opening of the main body 11. , 13 and grip portions 14, 14 which are bent upward and extend from the lower edge of the opening of the main body 11 so as to be in pressure contact with both outer surfaces of the main body 11.

The main body 11 of the glass run 10 is inserted so as to be located in the retainer 6, and the inner edges 3 b, 4 b and the retainer 6 are fitted and fixed to the grips 14. Thereby, the space between the window frame 1b and the glass run 10 is sealed.

The tip portions of the inner and outer lip portions 12 and 13 are in contact with each other when the door glass 5 does not enter (see FIG. 3). Further, when the door glass 5 enters, it is elastically deformed and pressed against the door glass 5, thereby sealing between the glass run 10 and the door glass 5 at the fully closed position (see FIG. 2). In addition, a stopper 17 is formed on the bottom wall 11a of the main body 11 so as to protrude therefrom, thereby restricting the fully closed position of the door glass 5.

The urging lip 2 is provided in the main body 11.
0 is provided. The biasing lip 20 is formed integrally with the inner side wall 11b of the main body 11 and extends in a direction perpendicular to the vertical direction a of the door glass 5 when the door glass 5 is in a non-entering state. Outer side wall 1 of part 11
1c, and a hanging portion 20b formed integrally with the base of the tongue portion 20a and extending downward to face the inner lip portion 12 on the side opposite to the sealing surface 12a. .

When the door glass 5 enters the main body 11, the inner and outer lip portions 1 are formed on the side surfaces of the door glass 5.
2 and 13 are in contact with each other, and the upper end surface 5a is
And push the tongue portion 20a upward. Then, the tongue portion 20a is elastically deformed upward, and accordingly, the hanging portion 2a
0b is elastically deformed and the anti-seal surface 12 of the inner lip 12
a, and urges the inner lip portion 12 toward the door glass 5 side. As a result, the pressing force due to the elastic deformation of the inner lip 12 itself and the hanging portion 20b
And the urging force of the above.

On the other hand, the tip of the tongue 20a is elastically deformed upward and comes into contact with the bottom wall 11a of the main body 11, and in this state, the upper end surface 5a of the door glass 5 comes into contact with the stopper 17, so that It will be restricted to the fully closed position.

As described above, according to the glass run seal structure of this embodiment, the tongue portion 20a elastically deformed by the entrance of the door glass 5 and the inner lip portion 12 with the elastic deformation of the tongue portion 20a are moved toward the door glass 5 side. 20b which urges against
Is formed integrally with the inner side wall 11b in the main body portion 11, so that the door glass 5 and the inner lip portion 12 can be formed without making the inner lip portion unnecessarily large.
And the sealing performance can be improved.

As a result, even if the door glass 5 is pulled to the outside of the vehicle by the negative pressure generated outside the door during traveling, or if the door glass 5 is shifted to the outside of the vehicle by the power window, the sealing performance can be ensured. In addition, it is possible to prevent rainwater and the like from entering the room and to prevent harsh wind noise.

Further, even if the door glass 5 is displaced due to variations in the dimensions or assembly accuracy of the components of the front door 1, the displacement can be absorbed by the urging lip 20. Nature can be secured.

In the present embodiment, since the biasing lip 20 is formed integrally with the inner side wall 11b of the main body 11, the glass run 10 can be formed at the same time when the glass run 10 is manufactured by extrusion or the like. The cost can be suppressed as compared with the case of forming.

In the present embodiment, the tongue 20a is formed in a direction perpendicular to the elevating direction a so as to face the upper end surface 5a of the door glass 5, and when the door glass 5 is raised to the fully closed position. Since the bottom wall portion 11a in the main body portion 11 is abutted, the tongue portion 20a can seal between the bottom wall portion 11a of the main body portion 11 and the upper end surface 5a of the door glass 5, and the sealing property is improved. Can be higher.

Since the hanging portion 20b is formed to extend downward from the base of the tongue portion 20a so as to face the non-seal surface 12a of the inner lip portion 12, it is possible to seal with a simple structure and suppress an increase in cost. And at the same time, the reliability of the sealing performance can be improved.

In the above embodiment, the case where the biasing lip is formed on the inner side wall of the vehicle has been described. However, depending on the characteristics of the vehicle, the biasing lip may be formed integrally with the outer side wall or the inner and outer side walls. .

[Brief description of the drawings]

FIG. 1 is a side view of a front door of an automobile to which a glass run seal structure according to an embodiment of the present invention is applied.

FIG. 2 is a cross-sectional rear view (a cross-sectional view taken along the line II-II of FIG. 1) of a wind frame of the front door.

FIG. 3 is a sectional rear view of the wind frame.

FIG. 4 is a cross-sectional view showing a conventional general glass run seal structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front door 1a Door main body 1b Window frame 1c Window opening 5 Door glass 5a Top end surface 10 Glass run 11 Main body part 11a Bottom wall part 11b Car inner side wall 12 Inner lip part 12a Anti-seal surface 13 Outer lip part 20 Energizing lip 20a Tongue part 20b hanging part

Claims (3)

[Claims] A door glass is disposed in a window opening formed by a door main body and a window frame so as to be able to move up and down, and the window frame has a U-shaped main body section having a door glass insertion opening. In a glass run seal structure for a vehicle door to which a glass run having a pair of inner and outer lip portions integrally formed on a lower edge of an opening of a main body and abutting on the door glass is mounted, the door glass is provided in the main body. A tongue that is elastically deformed when its end face abuts upon entry of the tongue, and a drooping part that urges one of the inner and outer lip parts toward the door glass side with the elastic deformation of the tongue. A glass run seal structure for a vehicle door, comprising a power lip. 2. The body according to claim 1, wherein the tongue extends in a direction perpendicular to an elevating direction so as to face an end surface of the door glass, and when the door glass moves upward to a fully closed position. It comes into contact with the bottom wall of
The glass run seal structure for a vehicle door, wherein the hanging portion extends from a base of the tongue portion so as to face a side opposite to a sealing surface of either the inside or outside lip portion. 3. The glass run seal structure for a vehicle door according to claim 1, wherein the urging lip is formed integrally with a vehicle inner side wall in the main body.