JP3168160B2 - Glass run corner joint structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner joining structure of a glass run disposed along an inner periphery of a door sash of an automobile.

[0002]

2. Description of the Related Art A door sash of an automobile door is provided with a long door glass run along an inner periphery thereof so as to guide the door glass up and down and to prevent rainwater or the like from entering a vehicle interior. Has become.

Japanese Patent Publication No. 3-7495 discloses an example of a method for producing such a glass run. Briefly referring to FIG. 5, two first extruded members 10 having a pair of side wall portions 114 and extruded into a substantially U-shaped cross section.
The second and second extrusion members 104 are connected to the upper mold 106, the lower mold 10
The ends of the extruded members 102 and 104 are connected by setting the rubber composition into the cavity 110 and injecting the rubber composition into the cavity 110 to form the corner molding portion 112. It is supposed to.

[0004] A corner forming portion 112 formed between the extruded members 102 and 104 has a first extruded member 10 at one end thereof.
2 and at the other end to the end of the second extrusion member 104, and is curved from one end to the other end.

[0005] The corner side wall portion 116 of the corner forming portion 112 is formed to have a smaller inclination angle γ with respect to the center line H than the side wall portion 114 of the extruded members 102 and 104. As a result, when attaching the glass run to the door sash, the side wall portion 114 and the corner side wall portion 116 are brought inward and pressed against the inner surface of the door sash. To prevent it from occurring.

[0006]

However, when the angle of inclination of the corner side wall portion 116 is particularly small as described above, the pressing force between the side wall portion and the door sash in the corner forming portion 112 is locally weakened. However, there is a problem that this portion may cause a problem such as rattling.

By the way, as shown in FIGS. 6 and 7, the first side wall portion 124 of the first pushing member 122 and the second pushing member 126
When the depth of the second side wall portion 128 is different from the depth of the second side wall portion 128, for example, when the depth S1 of the first side wall portion 124 is shorter than the depth S2 of the second side wall portion 128, the side wall portion and the door sash at the time of glass run attachment are not used. In order to equalize the pressure contact force between the two, it is necessary to increase the inclination angle γ of the second side wall portion 128 in advance as compared with the first side wall portion 124 as shown in FIG. As a result, the distance D between the front end portions of the side wall portions is smaller than that of the first pushing member 1.
22 and the second extruding member 126 are greatly different, and the distance D is continuously changed in the longitudinal direction at the corner forming portion 130 formed between the extruding members 122 and 126.

In such a glass run 100,
When the opposing side wall portions are brought inward at the time of attachment (the state shown by the imaginary line in FIG. 7), a distortion is generated in the corner forming portion 112 due to the change in the distance D in the longitudinal direction, and the glass run As the appearance of 100 gets worse,
Sealability to door glass also decreases.

An object of the present invention is to provide a glass run corner joining structure which can be favorably attached to a door sash without causing the distortion.

[0010]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a long glass run disposed along the inner periphery of a door sash of a motor vehicle, the first glass run having a pair of first side walls having a substantially U-shaped cross section. An extruding member, a second extruding member having a substantially U-shaped cross section having a pair of second side walls that are longer than the first side wall,
A corner forming portion of a glass run in which the first extruded member and the second extruded member are integrally joined at a predetermined angle by molding a corner molded portion between the corners. One end of the corner forming portion is continuous with the first side wall portion, and the other end of the corner forming portion is continuous with the second side wall portion, and at least a tip edge on the inner peripheral side of the corner curves from the one end to the other end. A side wall portion, and the corner side wall portion is located outside the corner.
A base that bends at a substantially right angle from the circumferential bottom, and from this base
It is extended, and the tip edge
This bent piece has a depth from the leading edge and an outward
The inclination angle is substantially the same as the first side wall portion, and the base portion is
It has substantially disappeared at the joint surface with the first side wall portion.
It is characterized in that that.

That is, in the present invention, the corner side wall is bent along a position having the same length as the first side wall,
Since the bent pieces on the leading edge side are inclined outward at substantially the same angle from this bent position, the pressure contact force between the bent piece outer surface and the door sash inner surface becomes equal at each portion in the longitudinal direction during mounting, and No distortion occurs.

The corner sidewall has a relatively thin wall along a position where the depth from the leading edge is the same as the depth of the first sidewall. When the curved groove is formed, the corner forming portion is surely bent along the bent groove.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 4, the glass run according to the present embodiment is attached along the inner periphery of the door sash 2 of the front side door 1 of the automobile, and the horizontal portion 2a and the vertical portion 2b of the door sash 2 and the space between them are provided. It extends over the bent corner 2c.
The glass run has a function of guiding the door glass 3 up and down and preventing rainwater or the like from entering the vehicle interior.

FIG. 3 is an enlarged view of the vicinity of the corner 2c of the door sash 2 of FIG. First, the configuration on the vehicle body side will be described. The outer panel 4 and the inner panel 5 of the door 1 include:
Flanges 6 projecting toward the opening of the door sash 2 and spaced apart from each other by a predetermined amount are formed. In these flanges 6, side walls of a channel member 7 opening in a substantially U-shaped cross section toward the inner periphery of the door sash 2 are respectively formed. Joined and fixed.

FIGS. 1 and 2 show the glass run 10 alone before being attached to the door sash 2.

The glass run 10 is manufactured basically in the same manner as in the conventional example (see FIG. 5). That is, two extruded members separately extruded using a rubber material, that is, a horizontal member 12 attached to the horizontal portion 2a of the door sash 2 and a vertical member 14 attached to the vertical portion 2b of the door sash 2, By inserting the rubber composition between the ends of the horizontal member 12 and the vertical member 14 in the cavity and inserting the rubber composition into the corner molding portion 16 by inserting the rubber composition into both ends of the cavity having a predetermined shape formed in the mold set. ,
The horizontal member 12 and the vertical member 14 are connected at substantially right angles.

The horizontal member 12 is formed by extruding a pair of horizontal side walls 20 from both ends of a thin plate-shaped bottom portion 18 so as to be opened in a substantially U-shaped cross section toward the inner periphery. . A pair of seal portions 22 protruding toward the inner periphery of the opening so as to approach each other and a pair of lip portions 24 curving outward are formed at the opening end edge of the horizontal side wall portion 20. When the glass run 10 is attached to the door sash 2, as shown in FIG. 3, the seal portion 22 slides on the side surface of the door glass 3, and the lip portion 24 covers the flange 6.

A strip-like projection 26 protruding outward is formed on the outer surface of the horizontal side wall 20. Fig. 3
The projection 26 is fitted to the wide fitting portion 7a provided on the bottom side of the channel member 7 so that the glass run 10 is securely fixed to the channel member 7 and the glass run 10 is separated from the door sash 2 as shown in FIG. It does not come off.

The vertical member 14 has a bottom portion 18, a seal portion 22, a lip portion 24, and a projection portion 2 having substantially the same shape as the horizontal member 12.
6 and a pair of vertical side walls 28 having different lengths from the horizontal side wall 20. Each of the portions in the longitudinal direction is extruded to have the same cross-sectional shape. The depth L2 from the opening edge of the vertical side wall 28 is equal to the depth L of the horizontal side wall 20.
It is longer than 1.

The corner forming portion 16 is formed in a substantially L-shape connecting the horizontal member 12 and the vertical member 14 at a substantially right angle.
One end 16a is continuous with the terminal 12a of the horizontal member 12, and the other end 16b is continuous with the terminal 14a of the vertical member 14. The corner forming portion 16 has a shape corresponding to the shape of the corner portion 2c of the door sash 2 to be attached as a whole, and the inner peripheral side of the corner is smoothly curved from one end 16a to the other end 16b, and the outer peripheral side of the corner is It is bent almost at a right angle. Therefore, the seal portion 22 and the lip portion 24 of the corner forming portion 16 located on the inner peripheral side of the corner are connected from one end 16a to the other end 16a.
The bottom portion 18 located on the outer peripheral side of the corner is bent at a right angle while being smoothly curved toward b.

The corner forming portion 16 is formed with a pair of corner side wall portions 32 which are continuous with the horizontal side wall portion 20 at one end 16a and continuous with the vertical side wall portion 28 at the other end 16b. The corner side wall portion 32 has a depth L1 at one end 16a continuous with the horizontal side wall portion 20, and has a vertical side wall portion 28.
The inner end of the corner is smoothly curved from one end 16a to the other end 16b, and the outer end of the corner is formed in a thin plate shape bent into an L-shape. .

The corner side wall 32 is bent along a position F at which the depth from the leading edge on the inner peripheral side of the corner is equal to the depth L1 of the horizontal side wall 20. A bent groove 34 in which the thickness of the corner side wall 32 is relatively thin is formed on the inner side of the corner side wall 32 so as to be along the position F. The portion 32 is surely bent along the position F.

The bent piece 36 on the inner peripheral side of the corner from the position F
Is outwardly inclined at the same angle α from the center line H, and extends in a belt shape while being curved from one end 16a to the other end 16b. The bent piece 36 has the same cross-sectional shape at each portion in the longitudinal direction. In the corner side wall 32, at one end 16 a and a portion formed to have the same cross-sectional shape as the one end 16 a, the corner side wall 32 forms a bent piece 36 as it is, and the corner side wall 32 forms an angle α as it is. It is inclined outward.

The base 38 located on the outer peripheral side of the corner from the position F is bent substantially at a right angle from the bottom 18 and is substantially parallel to the center line H. The base 38 has a depth obtained by subtracting the depth L1 from the depth L2, and disappears at a portion where the depth of the corner side wall 32 becomes L1.

As described above, since the base 38 is bent at a substantially right angle from the bottom 18 and the bent pieces 36 are inclined at the same angle α, the glass run 10 before mounting has a gap between the front ends of the side walls. The interval D is substantially equal in each part of the corner forming part 16 in the longitudinal direction.

The glass run 10 having such a configuration is attached so as to fit into the channel member 7 of the door sash 2. At this time, the bent piece 36 is positioned substantially in the same plane as the base 38, that is, parallel to the center line H, as shown in FIG. Are pressed inward into the channel member 7, and the outer surface of the bent piece 36 is pressed against the inner surface of the channel member 7. At this time, since the bent pieces 36 have the same length and are inclined at the same angle α, the pressure contact force between the outer surface of the bent piece 36 and the inner surface of the channel member 7 is uniform at each portion in the longitudinal direction. . Therefore, the glass run 10 can be satisfactorily attached to the door sash 2 without causing distortion due to the difference in the interval between the side wall portions in the corner portion as in the above-described conventional example.

The glass run 10 of the present embodiment described above is used.
At the time of manufacturing, the end 14a of the vertical member 14 set in the cavity of the mold is shaped so as to substantially coincide with the other end 16b of the corner forming portion 16. That is, in this terminal 14a, the vertical side wall 28 is
, And at a position F, further outward by an angle α.

In the above-described embodiment, the glass run 10 attached to the front side door 1 has been described as an example. However, the present invention is not limited to this, and can be applied to, for example, a glass run attached to the rear side door.

The shape of each part of the glass run 10 can be appropriately changed according to the shape of the door sash 2 to which the glass run 10 is attached. For example, corner forming part 1
The outer peripheral side of the corner 6 may be curved similarly to the inner peripheral side of the corner.

[0030]

As described above, according to the present invention, the corner side wall portion of the corner portion of the glass run is bent at the same depth, and the bent pieces on the tip side from this bent position are outwardly formed at the same angle. It was configured to be inclined. Therefore, the pressing force between the outer surface of the bent piece and the inner surface of the door sash at the time of mounting becomes uniform at each portion in the longitudinal direction, and the glass run can be satisfactorily mounted on the door sash without causing distortion as in the conventional example.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a glass run according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a corner forming part of the glass run of FIG. 1;

FIG. 3 is an enlarged view of a portion surrounded by reference numeral III in FIG. 4;

FIG. 4 is a side view of a door to which the glass run of FIG. 1 is attached.

FIG. 5 is a configuration diagram showing a conventional glass run.

FIG. 6 is a perspective view showing a conventional glass run.

FIG. 7 is a front view of the glass run of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Glass run 12 ... Horizontal member (1st extrusion member) 14 ... Vertical member (2nd extrusion member) 16 ... Corner forming part 20 ... Horizontal side wall part (1st side wall part) 28 ... Vertical side wall part (2nd extrusion part) 32: corner side wall 34: bent groove 36: bent piece

Claims (2)

(57) [Claims] 1. A long glass run disposed along an inner periphery of a door sash of an automobile, a first extruding member having a pair of first side wall portions and having a substantially U-shaped cross section, and the first side wall portion. The first extruded member and the second extruded member are formed by molding a corner molded portion between a second extruded member having a substantially U-shaped cross section having a pair of second side walls having a longer depth. Are joined together at a predetermined angle, and the corner forming portion is connected to the first side wall portion at one end of the corner forming portion, and is formed at the other end of the corner forming portion. A corner side wall portion that is continuous with the two side wall portions and at least a leading edge on the inner circumferential side of the corner curves from the one end to the other end, and the corner side wall portion is substantially straight from the bottom portion on the outer circumferential side of the corner.
A base that bends into a corner and a tip that extends from this base
The edge is composed of a bent piece that is inclined outward, and this bent piece has a depth from the tip edge, an inclination angle to the outside,
Are substantially the same as the first side wall portion, and the base portion is substantially at a joint surface with the first side wall portion.
The corner joint structure of the glass run, which has disappeared . 2. A fold where the thickness of the corner side wall portion is relatively thin along a position where the depth from the front end edge is the same as the depth of the first side wall portion. The corner joint structure for a glass run according to claim 1, wherein a curved groove is formed.