JPH09290645A - Corner part joining structure of glassrun - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent any strain in a corner part from occurring. SOLUTION: With a corner forming part 16 formed by means of die forming, both horizontal and vertical members 12 and 14 different in depth of side wall parts 20 and 28 with each other are connected into being almost right angled. A side wall part 32 is bent along a position where depth from a tip of this side wall part 32 of the corner forming part 16 become identical to that of the side wall part 20 of the horizontal member 12, and a bending piece 36 at the corner inner circumferential side from this bent position is tilted to the outside at the same angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for joining a corner portion of a grass run arranged along the inner circumference of a door sash of an automobile.

[0002]

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

Japanese Patent Publication No. 3-7495 discloses an example of such a method for producing grass run. Briefly explaining with reference to FIG. 5, two first extruding members 10 having a pair of side wall portions 114 and extruded in a substantially U-shaped cross section.
2 and the second extrusion member 104, the upper mold 106, the lower mold 10
8 is connected to the ends of the extruded members 102 and 104 by setting them at both ends of a tunnel-shaped cavity 110 formed between the two parts and injecting a rubber composition into the cavity 110 to form a corner forming part 112. It is supposed to do.

The corner forming portion 112 formed between the extruding members 102 and 104 has a first extruding member 10 at one end thereof.
2 is continuous, the other end is continuous with the end of the second extrusion member 104, and is curved from one end to the other end.

The corner side wall portion 116 of the corner forming portion 112 is formed such that the inclination angle γ with respect to the center line H is narrower than that of the side wall portion 114 of the extruding members 102 and 104. As a result, when the grass run is attached to the door sash, the side wall portion 114 and the corner side wall portion 116 are brought inward and come into pressure contact with the inner surface of the door sash. It is designed to prevent it from occurring.

[0006]

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

By the way, as shown in FIGS. 6 and 7, the first side wall portion 124 of the first extruding member 122 and the second extruding member 126.
When the depths of the first side wall portion 124 and the second side wall portion 128 are different from each other, 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 attaching the grass run are In order to equalize the pressure contact force between the two, it is necessary to make the inclination angle γ of the second side wall portion 128 larger than that of the first side wall portion 124 in advance, as shown in FIG. 7. As a result, the distance D between the tip ends of the side walls is determined by the first pushing member 1.
22 and the second extruding member 126 are largely different from each other, and in the corner forming portion 130 formed between the extruding members 122 and 126, the distance D continuously changes in the longitudinal direction.

In such a grass run 100,
When the side walls facing each other are brought inward during mounting (state shown by phantom lines in FIG. 7), distortion occurs due to the change in the distance D in the longitudinal direction at the corner forming part 112, and the glass run. As the appearance of 100 deteriorates,
The sealing property with respect to the door glass also deteriorates.

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

[0010]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a long glass run arranged along the inner circumference of a door sash of a vehicle, a first U-shaped cross section having a pair of first side wall portions is provided. An extruding member; and a second extruding member having a substantially U-shaped cross section, which has a pair of second side wall portions having a depth greater than that of the first side wall portion,
A corner portion joint structure of a glass run in which the first extruding member and the second extruding member are integrally joined at a predetermined angle by molding a corner forming portion between A corner that is continuous with the first side wall portion at one end of the corner forming portion and is continuous with the second side wall portion at the other end of the corner forming portion, and at least the tip end edge on the inner peripheral side of the corner is curved from the one end to the other end. The corner side wall has a side wall, and the corner side wall is bent at substantially the same angle along the position where the depth from the tip edge is the same as the depth of the first side wall so that the tip edge side is inclined outward. It is characterized by being bent.

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

Further, along the position where the depth from the leading edge is the same as the depth of the first side wall portion, the corner side wall portion has a relatively thin thickness along the corner side wall portion. 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 grass run according to the present embodiment is attached along the inner circumference of a door sash 2 of a front side door 1 of an automobile, and is mounted on a horizontal portion 2a, a vertical portion 2b of the door sash 2 and between them. It extends over the bent corner portion 2c.
This glass run has a function of guiding the door glass 3 up and down and preventing rainwater and the like from entering the vehicle interior.

FIG. 3 is an enlarged view of the vicinity of the corner portion 2c of the door sash 2 of FIG. First, the structure of the vehicle body side will be described. The outer panel 4 and the inner panel 5 of the door 1 are
Flanges 6 that project toward the opening of the door sash 2 and are spaced apart from each other by a predetermined amount are formed. In these flanges 6, side wall portions of the channel member 7 that open toward the inner circumference of the door sash 2 in a substantially U-shaped cross section 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 basically manufactured by the same method as the above-mentioned 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 cavities having a predetermined shape formed in the pair of molds, and molding the corner molding portion 16 ,
The horizontal member 12 and the vertical member 14 are connected at a substantially right angle.

The horizontal member 12 has a pair of horizontal side wall portions 20 bent from both ends of the thin plate-shaped bottom portion 18 and is extruded in the same cross-sectional shape opening toward the inner periphery in a substantially U-shaped cross-section. . A pair of seal portions 22 that project toward the inner circumference of the opening and a pair of lip portions 24 that curve outward are formed at the front 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 is in sliding contact with the side surface of the door glass 3, and the lip portion 24 covers the flange 6.

On the outer surface of the horizontal side wall portion 20, there is formed a strip-shaped projection portion 26 which projects outward. When mounting, see Figure 3.
As shown in FIG. 4, the protrusion 26 is fitted into the wide fitting portion 7a provided on the bottom side of the channel member 7, whereby the grass run 10 is securely fixed to the channel member 7, and the grass run 10 is removed from the door sash 2. It does not come off.

The vertical member 14 includes a bottom portion 18, a seal portion 22, a lip portion 24, and a protrusion portion 2 which have substantially the same shape as the horizontal member 12.
6 and a pair of vertical side walls 28 having a length different from that of the horizontal side walls 20 and are extruded to have the same cross-sectional shape at each part in the longitudinal direction. The depth L2 of the vertical side wall portion 28 from the opening edge is equal to the depth L of the horizontal side wall portion 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 thereof is continuous with the end 12a of the horizontal member 12, and the other end 16b is continuous with the end 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 which is 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 formed. It is bent 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 separated from the one end 16a to the other end 16a.
Although it is smoothly curved toward b, the bottom portion 18 located on the outer peripheral side of the corner is bent at a right angle.

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 which is continuous with the horizontal side wall portion 20, and has a vertical side wall portion 28.
The depth of the other end 16b continuous with is L2, the inner circumference side of the corner is smoothly curved from the one end 16a to the other end 16b, and the outer circumference side of the corner is formed in a thin plate shape bent in an L shape. .

The corner side wall portion 32 is bent along a position F where the depth from the tip edge on the inner peripheral side of the corner is equal to the depth L1 of the horizontal side wall portion 20. A bending groove 34 is formed on the inner side surface of the corner side wall 32 so that the corner side wall 32 has a relatively small thickness along the position F. The portion 32 is surely bent along the position F.

Bending piece 36 from the position F to the inner peripheral side of the corner
Is inclined outward from the center line H at the same angle α, and extends in a strip shape while curving 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 portion 32, at the one end 16a and the portion formed in the same cross-sectional shape as the one end 16a, the corner side wall portion 32 constitutes the bent piece 36 as it is, and the corner side wall portion 32 remains at the angle α. It is inclined to the outside.

The base portion 38 located on the outer peripheral side of the corner with respect to the position F is bent at a substantially right angle from the bottom portion 18 and is substantially parallel to the center line H. The base portion 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 portion 32 is L1.

Since the base portion 38 is bent at a substantially right angle from the bottom portion 18 and the bent pieces 36 are inclined at the same angle α as described above, in the grass run 10 before mounting, the space between the tip ends of the side wall portions is increased. The distance D is substantially equal in each part of the corner forming part 16 in the longitudinal direction.

The glass run 10 having such a structure is attached so as to fit into the channel member 7 of the door sash 2. At this time, the bent piece 36 is located at a position substantially parallel to the base 38, that is, parallel to the center line H, as shown in FIG. Are pushed inward toward each other and are press-fitted into the channel member 7, and the outer side surface of the bent piece 36 is in pressure contact with the inner side 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 side surface of the bent piece 36 and the inner side surface of the channel member 7 becomes uniform at each portion in the longitudinal direction. . Therefore, unlike the conventional example described above, the strain caused by the difference in the distance between the side wall portions at the corner portion does not occur, and the grass run 10 can be attached to the door sash 2 satisfactorily.

The grass run 10 of this 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 has a shape that substantially coincides with the other end 16b of the corner molding portion 16. That is, in this terminal 14a, the vertical side wall portion 28 has the bottom portion 18
Is bent at a substantially right angle and is further bent outward at the position F 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, but the present invention is not limited to this and can be applied to a glass run attached to a rear side door, for example.

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, the 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 forming portion of the grass run is bent at the same depth position, and the bending pieces on the tip side from this bending position are outside at the same angle. It is configured to tilt. Therefore, the pressure contact force between the outer surface of the bent piece and the inner surface of the door sash becomes uniform at each portion in the longitudinal direction at the time of mounting, and the grass run can be satisfactorily mounted on the door sash without causing distortion unlike the conventional example.

[Brief description of 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 molding portion of the glass run of FIG.

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

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

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

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

7 is a front view of the grass run of FIG.

[Explanation 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 ... Bending groove 36 ... Bending piece

Claims (2)

[Claims] 1. A long glass run disposed along the inner circumference of a door sash of an automobile, wherein a first push-out member having a pair of first side wall portions and having a substantially U-shaped cross section, and the first side wall portion. By molding a corner forming part between a second extruding member having a pair of second side walls with a longer depth and having a substantially U-shaped cross section, the first extruding member and the second extruding member are formed. Is a corner part joint structure of a glass run integrally joined at a predetermined angle, wherein the corner forming part is continuous with the first side wall part at one end of the corner forming part and The second side wall portion has a corner side wall portion which is continuous from at least one end to the other end and has a corner side wall portion that is curved from one end to the other end. The corner side wall portion has a depth from the front end edge that is the first side wall portion. The same as the depth of Corner joint structure of the glass run along the tip edge is characterized in that it has been formed bent at substantially the same angle so as to be inclined outwardly. 2. A fold in which the thickness of the corner side wall is relatively thin along the position where the depth from the tip edge is the same as the depth of the first side wall on the corner side wall. The glass run corner portion joining structure according to claim 1, wherein a curved groove is formed.