JP3671642B2 - Glass run structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a glass run structure that is attached to a window frame of a door sash of an automobile and guides raising and lowering of a door glass.
[0002]
[Prior art]
A conventional glass run structure is disclosed, for example, in JP-A-5-278472. FIG. 3 shows a door of an automobile to which the conventional class run described in this publication is attached. A door sash 2 serving as a window frame is provided integrally with the door main body 1 at the upper portion of the waist line of the door main body 1, and a glass run 4 for supporting the door glass 3 to be movable up and down is provided on the inner peripheral side of the door sash. Is attached.
[0003]
The glass run 4 is attached to the window frame flange portion 2a of the door sash 2, as shown in FIG. 4 which is a cross-sectional view taken along line IV-IV in FIG. The glass run 4 is composed of a metal core material 4a and a synthetic resin layer 4b which is extruded and molded together with the core material 4a, and has a substantially “U” -shaped cross section that guides the edge of the door glass 3 up and down. The door glass guide part 5, the welt part 6 which is connected to the vehicle interior side of the door glass guide part 5 and is formed in a “U” shape opposite to the door glass guide part 5, and the door glass guide part 5 The inner lip portion 7 is formed at the front end of the vehicle interior side, and the outer lip portion 8 is formed at the front end of the door glass guide portion 5 outside the vehicle compartment.
[0004]
In the closed state, the door glass 3 is located inside the door glass guide portion 5 as shown by a broken line in FIG. 4, the inner lip portion 7 is in contact with the inner surface, and the outer lip portion 8 is in contact with the outer surface. And it is hold | maintained in the state pinched | interposed into these lip | rip parts. When the door glass 3 is slightly operated in the opening direction, the end surface of the door glass 3 is displaced in a direction of escaping from the door glass guide portion 5 as shown by a solid line in FIG. In this state, the outer lip portion 8 is already disconnected from the door glass 3, and only the inner lip portion 7 is in contact with the inner surface of the door glass.
[0005]
[Problems to be solved by the invention]
However, in the conventional glass run structure described above, the door glass 3 and the inner lip 7 are separated in the vehicle width direction when the door glass is operated in the opening direction. When 3 vibrates in the vehicle width direction indicated by arrow A in the figure, the inner surface of the door glass 3 and the inner lip 7 are repeatedly separated and contacted, and a hitting sound is generated at the time of contact. there were.
[0006]
The present invention has been made in view of the above-described problems of the prior art, and even when the door glass vibrates in the vehicle width direction with the door glass slightly operated in the opening direction, the generation of a hitting sound is generated. An object of the present invention is to provide a glass run structure capable of reducing the above.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a glass run structure according to the present invention is attached to a window frame flange portion of a door sash of a vehicle, and has a substantially “U” -shaped door glass guide portion that guides the door glass edge up and down. The door glass guide portion has an inner lip portion formed at the front end on the vehicle interior side and an outer lip portion formed at the front end of the door glass guide portion on the vehicle exterior side, and is extruded and molded together with the core material. In the glass run structure, the inner lip portion is provided at an offset position toward the inner side of the door glass guide portion with respect to the outer lip portion when viewed from the side of the vehicle, and has a substantially cross-sectional shape that is convex in the direction of the door glass guide portion. Jo to form folding, in the closed state of the door glass, the tip is in contact with the inner surface of the door glass has been in the door glass is operated in the opening direction Wherein the door glass edge is displaced in a direction to escape from the door glass guide portion, the outer surface, characterized in that it is constructed is disposed so as to contact with the door glass end face Te.
[0008]
Further, in the closed state of the door glass, the vicinity of the “<”-shaped bending point of the inner lip portion may be brought into contact with the step portion formed in the door glass guide portion and sealed.
[0009]
The inner lip portion has a base end linear portion on the vehicle interior side from the bending point and a tip linear portion on the vehicle exterior side from the bending point, with the “<”-shaped bending point as a boundary. In the non-contact state of the door glass, the base end straight portion is directed in the direction of entering the door glass guide portion, and the tip straight portion is directed in the direction of exiting from the door glass guide portion at the 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 the door glass end surface is displaced in a direction to escape from the door glass guide portion as the door glass is operated in the opening direction. In addition, it is desirable that the outer side surface of the tip linear portion be arranged so as to contact the door glass end surface.
[0010]
[Action]
In the above configuration, the door glass is located inside the door glass guide portion in the closed state, the inner lip portion is in contact with the inner surface, the outer lip portion is in contact with the outer surface, and is sandwiched between these lip portions. It is held in the state. 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 portion. In this state, the outer lip portion has already been disconnected from the door glass, the outer surface of the inner straight portion of the inner lip portion is in contact with the door glass end surface, and even when the door glass vibrates in the vehicle width direction. The door glass is displaced in contact with the inner lip portion, and it is difficult to generate a hitting sound due to separation and repeated contact.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the glass run structure according to the present invention will be described. 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.
[0012]
As shown in FIG. 2, a door sash 11 serving as a window frame is provided integrally with the door body 10 at the upper portion of the waistline 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 movable up and down is attached.
[0013]
The glass run 20 is attached to the window frame flange portion 11a of the door sash 11, as shown in FIG. 1 which is a cross-sectional view taken along the line II of FIG. The glass run 20 is composed of a metal core material 20a such as iron and a synthetic resin layer 20b such as rubber which is extruded and molded together with the core material 20a. Functionally, the glass run 20 is a door glass. A door glass guide portion 21 having a substantially “U” -shaped cross-section that guides the end edge of the door 13 and a “U” that is connected to the vehicle interior side of the door glass guide portion 21 and is opposite to the door glass guide portion 21. A welt portion 22 formed in a letter shape, an inner lip portion 23 formed at the front end of the door glass guide portion 21 on the vehicle interior side, and an outer lip portion 24 formed at the front end of the door glass guide portion 21 on the outer side of the vehicle interior. And.
[0014]
The welt part 22 is fixed so as to sandwich the window frame flange part 11 a of the door sash 11, and fixes the glass run 20 to the door sash 11. Further, a step portion 25 is formed between the welt portion 22 of the glass run 20 and the door glass guide portion 23 to offset the door glass guide portion 23 to the outside of the passenger compartment.
[0015]
The inner lip portion 23 is provided at an offset position with respect to the outer lip portion 24 toward the inside of the door glass guide portion 21 in a vehicle side view. Further, the inner lip portion 23 is formed to be bent in a substantially “<”-shaped cross section that protrudes in the direction of the door glass guide portion 21, and from the bending point at the “<”-shaped bending point 23 a. It has a base end linear portion 23b on the vehicle interior side and a tip linear portion 23c on the vehicle exterior side 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 proximal straight portion 23b is directed in the direction of entering the door glass guide portion 21, and the distal straight portion 23c is bent. The point 23a is directed to the direction of exiting from the door glass guide 21.
[0016]
In addition, since the door glass 13 is formed diagonally on the rear side of the rear door shown in FIG. 1, when attention is paid to one cross section, the rear end surface is displaced in the vehicle front-rear direction as the door glass 13 is raised and lowered. It becomes. That is, in the closed state, the door glass 13 is located inside the door glass guide portion 21 as indicated by a broken line 13 'in FIG. 1, and as the door glass 3 is operated in the opening direction, the door glass 13 The rear end surface is displaced in the direction of escaping from the door glass guide portion 21, and is displaced to a position indicated by a broken line 13 ″ and a position indicated by a solid line 13.
[0017]
Next, the displacement of the inner lip portion 23 and the outer lip portion 24 accompanying the displacement of the door glass 13 in the glass run 20 will be described.
As shown by the solid line in FIG. 1, the inner lip portion 23 is located on the outer side of the vehicle interior of the door glass 13 when the edge of the door glass 13 is not in contact with the door glass 13 during the raising and lowering of the door glass 13. Configured to be located.
[0018]
When the door glass 13 is in the closed position indicated by the broken line 13 ′, the inner lip portion 23 abuts on the surface of the door glass 13 on the vehicle interior side, and the outer lip portion 24 abuts on the surface of the door glass 13 on the vehicle exterior side. . Each lip portion is bent inside the door glass guide portion 21 against the elastic force, and the door glass 13 is held in a state of being sandwiched between the lip portions 23 and 24.
From this state, for example, even if the door glass 13 is moved in the vehicle interior direction as indicated by a three-point difference line in FIG. 1 due to negative pressure or the like in the vehicle interior, the inner lip portion 23 is indicated by a four-point difference line. Therefore, there is no risk of bottoming directly on the inner wall of the door glass guide portion 21.
In the state of being in the closed position, the vicinity of the “<”-shaped bending point 23 a of the inner lip portion 23 abuts on the step portion 25 formed on the door glass guide portion 21 and seals. As a result, a closed space is newly formed between the inside and outside of the passenger compartment, and it becomes a double seal, reducing wind noise due to wind wrapping and the like, and improving sound insulation.
[0019]
When the door glass 13 is slightly operated in the opening direction and the rear end surface of the door glass 3 is displaced in the direction of escaping from the door glass guide portion 21 as indicated by a broken line 13 ″, the outer lip portion 24 is already in contact with the door glass 13. The contact is cut off, and only the inner lip portion 23 comes into contact with the inner surface of the door glass 23. At this time, the inner lip portion 23 is arranged with the outer surface of the straight end portion 23c in contact with the end surface of the door glass 13. Therefore, even when the door glass 13 vibrates in the vehicle width direction indicated by the arrow A in the figure, the door glass 13 is displaced in contact with the inner lip portion 23, and the hitting sound due to separation and repeated contact is not generated. Hard to occur.
[0020]
In a state where the door glass 13 is further operated in the opening direction and the rear end surface of the door glass 3 has escaped from the door glass guide portion 5 as indicated by a solid line 13 in the figure, not only the outer lip portion 24 but also the inner lip portion 23 is also door glass. Leave 13 When the door glass 13 and the inner lip portion 23 are separated from each other, they are separated in the vehicle front-rear direction. Therefore, even when the door glass 13 vibrates in the vehicle width direction immediately before and after the separation, the hitting sound due to repeated separation and contact. Is unlikely to occur.
[0021]
Further, when the door glass 13 and the inner lip 23 are separated from each other, the distal straight portion 23c is at an angle that is nearly parallel to the vehicle width direction, and the proximal straight portion 23b is located away from the door glass 13. Even when the door glass 13 vibrates in the vehicle width direction, the door glass 13 and the inner lip portion 23 do not contact each other.
[0022]
【The invention's effect】
As described above, according to the present invention, when the door glass and the inner lip portion are separated from each other by forming the inner lip portion into a substantially "<"-shaped cross section that is convex in the direction of the door glass guide portion. The two can be separated from each other in the vehicle front-rear direction, and even when the door glass vibrates in the vehicle width direction with the door glass slightly operated in the opening direction, it is possible to reduce the occurrence of hitting sound. .
[0023]
In addition, when the door glass is closed so that the vicinity of the "<"-shaped bending point of the inner lip portion is in contact with the step portion formed on the door glass guide portion and sealed, A closed space is newly formed between them, and it is possible to reduce the wraparound of the wind and improve the sound insulation.
[Brief description of the drawings]
1 is a cross-sectional view taken along the line II of FIG. 2 showing a glass run structure according to an embodiment of the present invention.
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 view showing a door of a vehicle to which a conventional glass run is attached.
4 is a cross-sectional view taken along the line IV-IV in FIG. 3 showing a conventional glass run structure.
[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 end linear part 23c Front end linear part 24 Outer lip part

Claims (4)

A door glass guide portion attached to a window frame flange portion of a vehicle door sash and having a substantially “U” -shaped cross section that guides the door glass edge up and down, and formed at the front end of the door glass guide portion on the vehicle interior side In the glass run structure that has an inner lip portion and an outer lip portion formed at the front end of the door glass guide portion on the outside of the passenger compartment, and is extruded and molded together with the core material,
The inner lip portion is provided at an offset position toward the inner side of the door glass guide portion with respect to the outer lip portion in a side view of the vehicle, and has a substantially “<” shape in cross section that is convex in the direction of the door glass guide portion. In the closed state of the door glass, the tip is in contact with the inner surface of the door glass, and the door glass end face escapes from the door glass guide portion as the door glass is operated in the opening direction. The glass run structure is characterized in that the outer surface is arranged so as to come into contact with the end surface of the door glass when displaced to .   2. The door glass according to claim 1, wherein in the closed state of the door glass, the vicinity of the "<"-shaped bending point of the inner lip portion abuts to seal a step portion formed in the door glass guide portion. The glass run structure described.   The inner lip portion includes a base end linear portion on the vehicle interior side from the bending point and a tip linear portion on the vehicle exterior side from the bending point, with a "<"-shaped bending point as a boundary. And in the non-contact state of the door glass, the base end straight portion is directed to enter the door glass guide portion, and the front end straight portion is the door glass at the bending point. The glass run structure according to claim 1, wherein the glass run structure is directed in a direction of exiting from the guide portion. 4. The glass run structure according to claim 3, wherein the inner lip portion is disposed such that an outer surface of the straight end portion of the tip is in contact with an end surface of the door glass.

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