JP6746384B2 - Glass run corner molding method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a corner portion of a glass run, which is attached along a frame provided on a door of a vehicle and guides a vertically moving door glass.

Conventionally, as shown in FIG. 6, a glass run 20 is attached to a frame body 400 of a front door 200 and a rear door 300 of a vehicle so as to guide a door glass 9 that moves up and down.
7 and 8 show the grass run 20 attached to the front door 200 side, which is called a hidden type that covers and hides a part of the frame 400 from the outside of the vehicle. In particular, in the corner portion, the two extrusion molding portions 11 and 12 are connected via the molding portion 13. In the two black-and-white bicolor triangles shown in FIG. 7, the black side is the mold forming part 13 and the white side is the extrusion forming parts 11 and 12.

The grass run 20 is provided on the outer side of the main body portion 21, which has a groove portion M formed on the inner side, a main body portion 21 including a vehicle exterior side wall portion 22, a vehicle interior side wall portion 23, and a connection wall portion 24 connecting them, A mounting portion 25 assembled to a flange (first flange) 401 formed so as to project from the frame body 400 toward the vehicle outer side, and a door glass extending from the end 22a of the vehicle outer side wall portion 22 toward the vehicle inner side. 9 and the outer lip portion 26 slidingly contacting the inner wall portion 9 of the vehicle inner side wall portion 23 extending from the outer side surface of the vehicle inner side wall portion 23 toward the connecting wall portion 24 toward the outer side of the vehicle and slidingly contacting the door glass 9. An end of the vehicle interior side wall portion 23 is sandwiched between the vehicle interior side wall portion 23 and the portion 27 and a flange (second flange) 402 formed so as to project inward from the vehicle interior side of the frame body 400. A decorative lip portion 28 extending from the portion 23a is provided.

When the grass run 20 is assembled to the frame body 400 provided on the vehicle doors 200 and 300, as shown in FIG. 8, the mounting portion 25 of the grass run 20 is attached to the first flange 401 of the frame body 400. After the assembling, the second flange 402 of the frame body 400 is assembled so as to be housed between the vehicle interior side wall portion 23 of the grass run 20 and the decorative lip portion 28. Therefore, in the assembling stage, as shown in FIG. As shown in FIG. 8C, the decorative lip portion 28 sandwiched between the second flange 402 and the vehicle interior side wall portion 23 is scraped out, and the decorative lip portion 28 is attached to the vehicle interior side of the second flange 402 as shown in FIG. 8C. Must be positioned so that the second flange 402 is sandwiched between the vehicle interior side wall portion 23 and the decorative lip portion 28.

Therefore, as shown in FIGS. 7 and 8, after the string 30 is set between the vehicle interior side wall portion 23 and the decorative lip portion 28 of the grass run 20, either one of the both ends 30a and 30b of the string 30 is worked. Conventionally, as shown in FIG. 8( c ), a person holds and pulls the decorative lip portion 28 toward the inside of the vehicle of the second flange 402 by pulling it toward the inside of the vehicle.
However, this requires extra man-hours for setting the cord 30 between the vehicle interior side wall portion 23 of the grass run 20 and the decorative lip portion 28, and also increases the cost of parts due to the addition of the cord 30. Further, since the string 30 is not fixed, it takes skill to hook the string 30 on the decorative lip portion 28 and scrape the decorative lip portion 28 out of the second flange 402 on the inside of the vehicle.

As an improvement measure, a string piece that can be peeled off at the same time as extrusion molding and that extends in the longitudinal direction can be formed in the extruded parts 11 and 12 instead of the string 30, but in this case, nothing is formed in the mold formed part 13. Since it does not exist, it is necessary to scrape off the decorative lip portion 28 using a hand or a spatula. Therefore, the assembling work of the grass run 20 becomes complicated, and the assembling time is long and the working efficiency is poor.

On the other hand, Patent Document 1 describes that a cord corresponding to a cord piece is molded and the elastic accessory 36 corresponding to a decorative lip portion is attached to a flange by pulling the cord.

Tokuyo 2002-521269

However, Patent Document 1 describes that the formation of the cord is a secondary molding operation, and the door seal corresponding to the glass run is first extruded, otherwise formed, and then the cord is molded therein (paragraph number (0010)).
According to this, since only the cord is injection-molded to the door seal, a special forming device is required and extra labor is required.
Moreover, there is no description about the corners where the extrusion-molded portions 11 and 12 are connected by the die-molded portion 13, and therefore, there is no idea of providing a code on both the extrusion-molded portions 11 and 12 and the die-molded portion 13.

Therefore, an object of the present invention is to provide a method for forming a corner portion of a grass run, which can efficiently perform the work of assembling the grass run to the frame body without increasing the cost.

In order to achieve the above object, a method for forming a corner portion of a glass run according to the present invention is a door glass which is mounted along an outer side of a frame body (400) provided on a door (200, 300) of a vehicle and moves up and down. A body part (21) for guiding (9) to the groove part, which comprises a vehicle exterior side wall part (22), a vehicle interior side wall part (23) and a connecting wall part (24) for connecting them, and the frame body (400). The flange (402) protruding inward from the inside of the vehicle is sandwiched between the flange (402) and the inside side wall (23), and extends from the end (23a) of the inside side wall (23). A glass run (20) having a decorative lip portion (28) covering the end portion (402a) of the (402) and two extrusion molding portions (11, 12) being connected by molding by a molding portion (13) at a corner portion. The method of forming a corner part of
A first cord piece (41) and a second cord piece (42) extending continuously in the longitudinal direction are provided at the tips (28a) of the decorative lip portions (28) in the two extrusion-molded portions (11, 12). Each is integrally molded during the extrusion molding,
A third string piece (43) extending continuously in the longitudinal direction is also molded at the tip (28a) of the decorative lip portion (28) in the mold molding portion (13) during the mold molding, and the third string is also formed. The piece (43) and the first string piece (41) and the second string piece (42) are respectively molded and connected ,
At the connecting position of the third string piece (43) and the first string piece (41) during the molding, the third string piece (43) covers the first string piece (41), and At the connecting position of the three string pieces (43) and the second string piece (42), the third string piece (43) is molded and connected so as to cover the second string piece (42). ..

Further, according to the present invention, the first, second, and third cord pieces (41, 42, 43) are respectively formed on the tip (28a) of the decorative lip portion (28) via a neck portion (29) thinner than them. It is characterized by being done.

Symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and modes for carrying out the invention described later.

According to the present invention, the main body portion that guides the ascending/descending door glass to the groove portion, and the decorative lip portion that extends from the vehicle interior side wall end portion of the main body portion and covers the flange that projects inward from the vehicle interior side of the frame body. In the corner portion of the glass run, the two extruded parts are formed and connected by the die forming part, but at the tip of the decorative lip part in the two extruded parts, the first string piece extending continuously in the longitudinal direction, The second string piece is integrally molded during extrusion molding, and at the time of mold molding, a third string piece that continuously extends in the longitudinal direction is also molded at the tip of the decorative lip portion in the mold molding part and the third string piece and Since the first string piece and the second string piece are respectively connected by molding, one string piece is continuously formed with the extrusion molding portion, the molding portion, and the extrusion molding portion.
Therefore, by holding both ends of the extruded part, the die formed part, and the one string piece formed continuously with the extruded part toward the inside of the vehicle, the glass run and the flange are assembled. The decorative lip portion sandwiched between the vehicle interior side wall portions can be easily scraped out to the vehicle interior side of the flange.

According to this, as shown in the conventional example, the cord piece is not formed only at the position of the extrusion molding portion or only at the position of the die molding portion, but one cord piece is formed at the extrusion molding portion and the die molding portion. Since it is continuously formed along the parts, extruded parts and corners, the work of scraping the decorative lip part from the outside of the flange to the inside of the car can be performed continuously without using a hand or a spatula. It is possible to carry out the operation by shortening the work time.
Therefore, the number of assembling steps is reduced and the work efficiency is improved as compared with the conventional example.
Moreover, the string piece is formed at the same time during the extrusion molding and the mold forming, and it is not necessary to use a separately prepared string, so that the cost is not particularly high. In addition, since it is not necessary to set the string piece between the car interior side wall part and the decorative lip part, no extra man-hours are required. No skill is required. Further, since the first and second cord pieces on the extrusion molding side and the third cord pieces on the molding portion side are connected at the time of molding, no special device is required.

According to the present invention, at the time of molding, at the connecting position of the third cord piece and the first cord piece, the third cord piece covers the outer peripheral surface of the first cord piece, and the third cord piece and the second cord piece. At the connecting position of the piece, the third cord piece is formed and connected so as to cover the outer peripheral surface of the second cord piece, that is, so as to overlap each other, so that the adhesive area is increased and the adhesive strength is increased.

Further, according to the present invention, since the first, second, and third cord pieces are respectively formed at the tip of the decorative lip portion via the neck portion thinner than them, the first, second, and third cord pieces are formed before the decorative lip portion is scraped. It is possible to easily perform the work of peeling off the ends of the cord piece and the second cord piece from the decorative lip portion, or peeling the continuous cord pieces (first, second, third cord pieces) after the scraping work. it can.

It is a perspective view which shows the corner part structure of the grass run which concerns on embodiment of this invention. It is sectional drawing which shows the procedure of assembling the glass run shape|molded by the corner part shaping|molding method of the glass run which concerns on embodiment of this invention to a frame. It is an AA line expanded sectional view of FIG.4(a) which shows the principal part of the grass run which concerns on embodiment of this invention. It is an X side enlarged side view of FIG. It is a BB line expanded sectional view of FIG.4(b) which shows the principal part of the other grass run which concerns on embodiment of this invention. It is an appearance side view of a car. It is a perspective view which shows the corner part structure of the grass run which concerns on a prior art example. It is sectional drawing which shows the procedure of assembling the glass run shape|molded by the corner part shaping|molding method of the glass run which concerns on a prior art example to a frame.

With reference to the drawings, a method for forming a corner portion of a grass run and a corner portion structure of a grass run according to an embodiment of the present invention will be described. The same parts as those shown in the conventional example (FIGS. 7 and 8) are designated by the same reference numerals.
The corner structure of the grass run according to the embodiment of the present invention is mounted along the vehicle outer side of the frame body 400 of the vehicle in which the frame body 400 is provided on the front door 200 and the rear door 300 as shown in FIG. The present invention relates to a hidden type glass run 20 that covers and hides a part of the frame 400 from the outside of the vehicle.
FIGS. 1 and 2 show a glass run 20 mounted along a corner portion above a rear portion of a front door 200 side. In the corner portion, two extrusion molding portions 11 and 12 form a mold molding portion 13. Connected through. In the two black-and-white two-color triangles shown in FIG. 1, the black side is the mold forming section 13 and the white side is the extrusion forming sections 11 and 12.

The glass run 20 is provided with a main body portion 21 having a groove portion M formed therein and for guiding the ascending/descending door glass 9, and a decorative lip portion 28 integrally formed with the main body portion 21.
The main body portion 21 has a substantially J-shaped cross section including a vehicle exterior side wall portion 22, a vehicle interior side wall portion 23 having a cross-sectional shape longer than that of the vehicle exterior side wall portion 22, and a connection wall portion 24 that connects them, and the outer side thereof. Has a mounting portion 25 that is assembled to a flange (first flange) 401 that is formed so as to project from the frame 400 toward the outside of the vehicle.

An outer lip portion 26 extending toward the inside of the vehicle is provided at an end portion 22a of the vehicle exterior side wall portion 22 so as to be in sliding contact with the vehicle exterior side surface of the door glass 9, and from the end portion 23a of the vehicle interior side wall portion 23 to the connecting wall portion 24 side. An inner lip portion 27 extending toward the outer side of the vehicle is provided on the outer side surface of the vehicle at a position separated by a predetermined distance, and is in sliding contact with the inner side surface of the door glass 9.
The attachment portion 25 has a substantially U-shaped cross-section together with the connecting wall portion 24, and a plurality of attachment portions 25 (here, four pieces are provided to sandwich and hold the first flange 401 when the first flange 401 of the frame body 400 is inserted therein). ) The claw-shaped protrusion 25a is provided. A core material may be embedded in the mounting portion 25. Further, a seal lip 25b extending outward (upward) is provided on the upper surface of the mounting portion 25, and elastically contacts the body side to seal between the body and the door 200.

The decorative lip portion 28 extends from the end portion 23a of the vehicle interior side wall portion 23 so as to be folded back toward the vehicle interior side, and is formed so as to project inward (downward) from the vehicle interior side of the frame 400. The (second flange) 402 is sandwiched between the inner side wall portion 23 and the end portion 402a of the second flange 402.

Then, as shown in FIG. 1, at the tip end 28a of the decorative lip portion 28, similar to the longitudinal direction in which the glass run 20 extends, the cord pieces 41, 42, which continuously extend in the longitudinal direction and which are curved along the corners. 43 is molded. The string piece includes the first string piece 11 provided at the tip 28a of the decorative lip portion 28 in the extruded part 11 that extends horizontally on the upper lateral side of the grass run 20, and the extruded part that extends vertically on the rear longitudinal side of the grass run 20. The second string piece 12 provided at the tip 28a of the decorative lip portion 28 at 12 is molded and connected to the third string piece 13 provided at the tip 28a of the decorative lip portion 28 at the mold forming portion 13.

Examples of the material for the glass run 20 include EPDM rubber and various thermoplastic elastomers such as olefin-based thermoplastic elastomer and styrene-based thermoplastic elastomer, but are not particularly limited. In addition, the product may have a single structure of one of these materials or a combination of two or more kinds. It may also be foamed.

The corner portion structure of the glass run 20 is formed as follows.
The two extruded parts 11 and 12 are extruded individually, and at the same time, the first string piece 41 and the second string piece 42 are integrally formed on the tip 28a of the decorative lip portion 28, respectively.
As shown in FIG. 3A, the first string piece 41 has a circular cross-sectional shape, and the diameter D thereof is set larger than the thickness 28W of the tip 28a of the decorative lip portion 28 which is tapered or arcuate. A large force is applied to the decorative lip portion 28 when the one string piece 41 is pulled, but the present invention is not limited to this.
Further, as shown in FIG. 3B, the first string piece 41 may be molded through the neck portion 29 that is thinner (thickness 29W) than the thickness 28W of the tip 28a of the decorative lip portion 28.
The second cord piece 42 and the third cord piece 43 also have the same shape as the first cord piece 41, and as shown in FIG. 3B, extrusion molding and die molding are performed via the thin neck portion 29. May be.

Next, the two extrusion molding parts 11 and 12 are set in a mold (not shown) to connect them, and the glass run 20 is molded to have a shape along the corner part.
At the time of this molding, a third string piece 43 continuously extending in the longitudinal direction is also molded at the tip 28a of the decorative lip portion 28 in the mold forming section 13, and the third string piece 43, the first string piece 41, and the first string piece 41, The two string pieces 42 are respectively molded and connected.

When the first cord piece 41 and the third cord piece 43 are connected by molding, as shown in FIG. 4A, even if the ends of the same shape are abutted on the connection line L1 of both, As shown in (b) and FIG. 5, not only the third cord piece 43 butts against the cross section of the end portion of the first cord piece 41, but the outer peripheral surface of the first cord piece 41 is separated from the end portion by a predetermined distance. It is also possible to increase the adhesive strength by covering so as to cover the so-called overlap.
The connection line L2 between the second string piece 42 and the third string piece 43 may be molded with the ends abutting each other or may be molded with the ends overlapping.

In order to assemble the glass run 20 thus molded at the corners to the frame body 400, as shown in FIG. 2A, the opening of the mounting portion 25 of the glass run 20 is removed from the frame body 400 to the outside of the vehicle. The first flange 401 is formed so as to project toward.
Then, the grass run 20 is moved to the frame 400 side, that is, the inside of the vehicle, and the first flange 401 is inserted from the opening of the mounting portion 25 to assemble the upper side of the grass run 20. At this time, the first flange 401 is clamped in the mounting portion 25 by the reaction force of the claw-shaped protruding portion 25a, and the grass run 20 is prevented from coming off.

At this time, as shown in FIG. 2B, the decorative lip portion 28 is formed between the second flange 402 formed so as to project inward from the vehicle interior side of the frame 400 and the vehicle interior side wall portion 23. Is sandwiched.
Next, after the operator slightly peels the end of the first string piece 41 or the end of the second string piece 42, or both, from the decorative lip portion 28, the end of the first string piece 41 is removed. Alternatively, when the end portion of the second cord piece 42 or both of them are grasped and pulled inward in the vehicle and downward, as shown in FIG. 2(c), the decorative lip portion 28 is formed by the extrusion molding portion 11, the mold. The molding portion 13 and the extrusion molding portion 12 are continuously scraped to the inside of the second flange 402 in a continuous state.
Thereafter, when further force is applied, the first string piece 41, the third string piece 43, and the second string piece 42 connected to one string piece are peeled from the end 28a of the decorative lip portion 28, and the assembling work is performed. Is completed.

According to this, the cord piece is not formed only at the positions of the extrusion molding portions 11 and 12 or only at the position of the mold molding portion 13, but one cord piece (first cord piece 41, third cord piece). 43 and the second string piece 42 which are continuous in this order) are continuously formed along the corners with the extruded part 11, the die part 13, and the extruded part 12, so that the decorative lip The work of scraping the second flange 402 of the portion 28 toward the inside of the vehicle can be continuously performed without using a hand, a spatula, or the like, and the work can be shortened.

In the present embodiment, the glass run 20 mainly attached to the frame body 400 provided on the front door 200 has been described, but the same applies to the frame body 400 provided on the rear door 300.
Further, in the present embodiment, as the glass run 20, the mounting portion 25 having a substantially U-shaped cross section is provided on the upper portion of the main body portion 21 and the first flange 401 of the frame body 400 is inserted therein. If the grass run needs to scrape out the decorative lip portion 28 sandwiched between the vehicle interior side wall portion 23 and the second flange 402 to the vehicle interior side of the second flange 402 during the assembling work of 20, a glass run of any shape can be used. It may be. Therefore, in the present embodiment, the outer lip portion 26 and the inner lip portion 27, which are in sliding contact with the vehicle outer side surface and the vehicle inner side surface of the ascending/descending door glass 9, are provided with a lip shape. It may be provided with a contact portion.

9 Door Glass 11 Extrusion Molding Part 12 Extrusion Molding Part 13 Mold Forming Part 20 Glass Run 21 Body Part 22 Car Outer Side Wall 22a Car Outer Side Wall End 23 Car Inner Side Wall 23a Car Inner Side Wall End 24 Connecting Wall 25 Attachment Part 25a Claw-shaped Ridge Part 25b Seal Lip 26 Outer Lip Part 27 Inner Lip Part 28 Decorative Lip Part 28a Tip of Decorative Lip Part 29 Neck Part 30 String 30a, b String End 41 First String Piece 41a First String Piece End 42 Second string piece 42a Second string piece end 43 Third string piece 200 Front door 300 Rear door 400 Frame 401 First flange (flange)
402 Second flange (flange)
402a Flange end L1, L2 Connection line M Groove

Claims (2)

A main body portion, which is attached along the vehicle outer side of a frame body provided on a vehicle door and guides a vertically moving door glass to a groove portion, which includes a vehicle inner side wall portion, a vehicle outer side wall portion, and a connecting wall portion connecting them. A decorative lip portion that extends from the end portion of the vehicle inner side wall portion so as to sandwich the flange protruding inward from the vehicle inner side of the frame body with the vehicle inner side wall portion and covers the end portion of the flange. A method for molding a corner portion of a glass run, comprising two extrusion molding portions at the corner portion, which are connected by molding by the molding portion.
A first cord piece and a second cord piece, which extend continuously in the longitudinal direction, are integrally molded at the tips of the decorative lip portions in the two extrusion molding parts, respectively, at the time of the extrusion molding,
At the time of the molding, a third string piece continuously extending in the longitudinal direction is also molded at the tip of the decorative lip portion in the mold molding section, and the third string piece, the first string piece, and the second string piece. And mold connecting each ,
At the connecting position of the third cord piece and the first cord piece during the molding, the third cord piece covers the first cord piece, and the connecting position of the third cord piece and the second cord piece. Then, the method for forming a corner portion of a grass run, characterized by forming-connecting the third string piece so as to cover the second string piece . The method for molding a corner portion of a grass run according to claim 1, wherein the first, second, and third cord pieces are respectively molded at the tip of the decorative lip portion through a neck portion thinner than them.