JPH11101075A - Vehicular weather strip and manufacture therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of part items and assembling manhours, and reduce a cost by integrally forming a tail end blocking-up part in an end part of a hollow installing part formed in a base material, and engaging a seal body having a locking projection with an inner wall surface of a seal installing wall through an opening part of a hollow chamber formed on the seal installing wall of the hollow installing part. SOLUTION: A hollow chamber 16 of a hollow installing part 15 and a tail end blocking-up part 25 to block up an upper half part of an inserting groove 12 are integrally formed with a base material 11 in a lengthwise end part of the synthetic resin base material 11. An opening part 19 which leads to the hollow chamber 16 and opens in an installing surface 18 of a seal installing wall 17, is formed on the seal installing wall 17 formed on one side of the hollow installing part 15 of the base material 11. A base part 31 of a seal body 30 installed on the seal installing wall 17 of the base material 11, engages with an inner wall surface of the seal installing wall 17 by protrusively arranging a locking projection 36 to install a seal lip on the seal installing wall 17 by being inserted into the hollow chamber 16 through the opening part 19 of the seal installing wall 17 in the lengthwise direction of one side surface of the base part 31 opposed to the installing surface 18 of the seal installing wall 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for a vehicle and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 12 and 13, for example, in a weather strip 110 mounted on a flange of a door panel, a support body 111 and a seal body 130 are provided.
There is a structure having the following. In the weather strip 110, the support 111 is formed into a fixed cross-sectional shape by extrusion, and is inserted into a flange of a door panel.
First and second support legs 113 and 120 opposed to each other
It has. Further, a mounting portion 115 having a mounting groove 116 for mounting the seal body 130 in a longitudinal direction is formed on an upper portion of the first support leg 113. The mounting portion 115 of the support 111 has a mounting groove 116.
In contrast, the seal 130 is attached in a state where the locking projection 136 of the seal 130 is engaged.

When the seal body 130 is attached to the mounting portion of the support 111 as described above, the insertion groove 112 and the end of the mounting groove 116 are opened at the longitudinal end of the support 111. Since the appearance deteriorates or rainwater or the like infiltrates, a terminal cap 125 is formed at the longitudinal end of the support 111 separately from the support 111 by injection molding or the like. The terminal cap 12
5 is provided with a terminal closing portion 126 and an insertion piece 127 integrally, and the insertion piece 127 is inserted into the end of the insertion groove 112 of the support 111, so that the terminal cap is attached to the end of the support 111. 125 is attached. Then, the end portions of the insertion groove 112 and the mounting groove 116 of the support 111 are closed by the terminal closing portion 126 of the terminal cap 125. In a weather strip including the support 111 and the seal 130, for example,
These are disclosed in, for example, JP-A-1-146617 and JP-A-60-213521.

[0004]

By the way, in the conventional weather strip 110 shown in FIG. 12 and FIG.
To close the longitudinal end of the support 111, the support 1
The terminal cap 125 must be formed separately from the terminal cap 11, and the terminal cap 125 must be attached to the end of the support 111, so that the number of parts and the number of assembling steps are increased, and the cost is increased. SUMMARY OF THE INVENTION It is an object of the present invention to provide a weather strip for a vehicle and a method for manufacturing the same, which can reduce the number of parts and the number of assembling steps to reduce the cost in view of the conventional problems.

[0005]

In order to achieve the above object, a weather strip for a vehicle according to the present invention has a support and a seal attached to the support. In the support, a hollow mounting portion having a hollow chamber in a longitudinal direction thereof is formed, and a terminal closing portion is integrally formed at an end thereof, and is formed on one side of the hollow mounting portion. An opening for opening the hollow chamber is formed in the seal mounting wall, and the seal mounting wall is inserted into the hollow chamber through the opening to engage with the inner wall surface of the seal mounting wall. It is characterized in that a seal having a mating locking projection is attached.

Accordingly, a hollow mounting portion having a hollow chamber is formed in the longitudinal direction of the support, and a terminal closing portion is integrally formed at the end thereof. After separately molding, the labor of attaching the terminal cap is omitted.

According to a second aspect of the present invention, in the weather strip for a vehicle according to the first aspect, an opening for opening the hollow chamber is provided on the seal mounting wall of the hollow mounting portion. It is characterized by being formed intermittently in the longitudinal direction of the wall.

Therefore, even when the support is long, it is reduced that the strength of the seal mounting wall of the hollow mounting portion is reduced by the opening.

According to a third aspect of the present invention, in the weather strip for a vehicle according to the first aspect, the seal mounting wall of the hollow mounting portion of the support has a wall thickness dimension that changes in the longitudinal direction. The locking projection of the seal body is formed with a leg inserted through the opening of the seal mounting wall, and a locking portion formed at the tip of the leg and engaged with the inner wall surface of the seal mounting wall. And the height dimension of the leg portion of the locking projection is changed in accordance with the change in the wall thickness dimension of the seal mounting wall.

[0010] Therefore, the locking projection of the seal is securely engaged with the seal mounting wall of the support without poor engagement, so that the seal does not rattle inward or outward with respect to the support.

According to a fourth aspect of the present invention, there is provided a method for manufacturing a weather strip for a vehicle, comprising: a support; and a seal attached to the support. The step of configuring, the step of configuring the seal body, and the step of assembling the seal body to the support, the step of configuring the support, first, at the same time as molding the support, in the longitudinal direction A hollow mounting portion having a hollow chamber, a terminal closing portion is integrally formed at an end thereof, and then an opening is formed by removing a part of a seal mounting wall on one side of the hollow mounting portion. In the step of constructing the body, one of the seal bodies having a locking projection that is inserted into the hollow chamber through the opening of the seal mounting wall of the hollow mounting section and engages with the inner wall surface of the seal mounting wall. Characterized by molding.

Therefore, in the step of forming the support, gas-assisted injection molding, blow molding,
By injection molding or the like, a support body having a hollow mounting portion having a hollow chamber in the longitudinal direction and a terminal closing portion is integrally formed, and thereafter, a part of the seal mounting wall of the hollow mounting portion is removed to close the terminal. It is possible to easily configure a support body integrally provided with the portion.

According to a fifth aspect of the present invention, in the method for manufacturing a weather strip for a vehicle according to the fourth aspect, in the step of forming the support, the supporting step is performed by gas-assisted injection molding. At the same time as the body is formed, a hollow mounting portion having a hollow chamber in the longitudinal direction and a terminal closing portion at its end are integrally formed.

Therefore, in the step of forming the support, a support having a hollow mounting portion having a hollow chamber in the longitudinal direction and a terminal closing portion is integrally formed by gas-assisted injection molding. By removing a part of the seal mounting wall of (1), a support body integrally provided with a terminal closing portion can be easily formed.

According to a sixth aspect of the present invention, in the method for manufacturing a weather strip for a vehicle according to the fifth aspect, the step of forming the seal body includes the step of forming the seal body with the seal mounting wall of the hollow mounting portion. When a seal body having a locking projection that is inserted into the hollow chamber through the opening to engage with the inner wall surface of the seal mounting wall is integrally formed by extrusion molding, the hollow of the support body based on gas assist injection molding is formed. In response to a change in the wall thickness dimension of the seal mounting wall in the mounting portion, a seal body having the locking projection is extruded while the height of the leg of the locking projection is changed.

Therefore, the height of the leg of the locking projection is changed in response to the change in the wall thickness of the seal mounting wall in the hollow mounting portion of the support integrally formed by gas-assisted injection molding. Can be easily extruded.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In FIG. 8, a weather strip 10 is mounted on a flange 2 of a door panel 1 of a vehicle. 1 to 3, the weather strip 10 includes a support 11 and a seal 30 that is attached to the support 11. The support 11
A first support leg 13 made of a hard or semi-rigid synthetic resin material and having a hollow mounting portion 15 on an upper portion;
And a second support leg 20 which is formed opposite to the first support leg 13 from one upper side and forms the insertion groove 12 between the first support leg 13 and the first support leg 13.

As shown in FIG. 3, the hollow mounting portion 15, the first support leg 13, and the second support leg 20 of the support 11 extend along the longitudinal direction of the flange 2 of the door panel 1, and the difference between the two. It is inserted into the flange 2 in the insertion groove 12 and mounted. At the lower end of the first support leg 13, a locking portion 14 that engages with the retaining piece 5 formed below the flange 2 of the door panel 1 is formed, while on the inner surface of the second support leg 20. Is formed with ribs 21 abutting on the flange surface of the flange 2 at predetermined intervals in the longitudinal direction.

At both ends of the support 11 in the longitudinal direction,
A terminal closing portion 25 for closing upper halves of both ends of the insertion groove 12 between the hollow chamber 16 of the hollow mounting portion 15 and the first and second support legs 13 and 20 is formed integrally with the support 11. . An opening 19 is formed in a seal mounting wall 17 formed on one side of the hollow mounting portion 15 of the support 11 and communicates with the hollow chamber 16 and opens to a mounting surface 18 on the outer surface of the seal mounting wall 17. I have. The opening 19 is formed in a long hole shape from the vicinity of one end of the seal mounting wall 17 in the longitudinal direction to the vicinity of the other end.

A seal 30 is mounted on the seal mounting wall 17 of the support 11. The seal body 30
Has a base 31, an overhang 32 and a seal lip 40 integrally. The base 31 of the seal body 30 is formed in a flat band shape parallel to the mounting surface 18 of the seal mounting wall 17, and in the longitudinal direction of one side surface of the base 31 facing the mounting surface 18 of the seal mounting wall 17, A locking projection 36 for attaching the seal lip 40 to the seal mounting wall 17 by being inserted into the hollow chamber 16 through the opening 19 of the seal mounting wall 17 is projected.

The locking projection 36 has a leg 37 inserted into the opening 19 of the seal mounting wall 17, and is formed at the tip of the leg 37 and is prevented from falling off by the inner wall surface of the seal mounting wall 17. An engaging portion 38 having an arrowhead-shaped cross section is provided integrally. Furthermore, the height H1 of the leg 37 of the locking projection 36
H3 are set to be substantially the same as the wall thickness dimensions h1 to h3 of the seal mounting wall 17. As a result, the locking projection 36 is securely engaged with the seal mounting wall 17 without poor engagement, and rattling of the seal body 30 in and out of the seal body 30 is prevented.

A projecting portion 32 projecting inward and outward is formed at the lower end of the base 31 of the seal body 30, and a portion of the projecting portion 32 projecting toward the lower surface of the hollow mounting portion 15 is formed. A portion projecting toward the window glass 3 is referred to as an engagement portion 33 and a seal projection 34. And the seal projection 3
4 is provided with a flocking 35 on its tip end surface. Further, a seal lip 40 having an upwardly inclined shape is extended at the upper end of the base 31 of the seal body 30 so as to be elastically deformable in a curved shape,
The lower inclined surface of the seal lip 40 is provided with a flocking 41 in contact with the glass surface of the window glass 3.

When the support 11 is long, an opening 19 is formed intermittently in the longitudinal direction of the seal mounting wall 17 of the support 11, as shown in FIG. It is desirable that the connecting portion 17a be left at a predetermined interval in the longitudinal direction of the mounting wall 17. By leaving the connecting portion 17 a at a predetermined interval in the longitudinal direction of the seal mounting wall 17, unexpected expansion of the opening 19 is reduced, and the seal body 30 is opened.
Is prevented from coming off from the opening 19 and coming off. However, in the locking projection 36 of the seal body 30, as shown in FIG.
The removal part 36a is provided by removing the portion corresponding to a.

The weather strip 10 for a vehicle according to the present embodiment configured as described above includes a step of forming the support 11, a step of forming the seal 30, and a step of forming the support 1.
And a step of assembling the seal body 30 with respect to 1. In the step of forming the support 11, first, a rigid or semi-rigid synthetic resin material is used, and a gas-assisted injection molding is used, as shown in FIG. 1 support leg 1
3 and an insertion groove 1 formed between the upper side of the hollow mounting portion 15 and the first support leg 13 so as to face the first support leg 13.
2 and a terminal closing part for closing the upper half of both ends of the insertion groove 12 between the hollow chamber 16 of the hollow mounting part 15 and the first and second support legs 13 and 20. And 25 are integrally formed to form a molded product of the support 11.

The hollow mounting portion 15 of the support body 11 integrally formed by the gas assist injection is provided with a gas injection port P located at the same portion as the material injection port in the gas assist injection molding die from an end on the back side. A hollow chamber 16 is formed. At this time, in the cavity of the molding die, a decrease in the melting temperature of the molten resin material in a portion near the material injection port is suppressed. Further, since the time during which the molten resin material contacts the molding surface of the cavity becomes longer toward the far side farther from the material injection port, the cavity is filled while the melting temperature is gradually lowered. Therefore, the hollow chamber 16 formed in the hollow mounting portion 15 by the gas injected from the gas injection port P is shown in FIG.
Changes in the longitudinal direction as shown in FIG. That is, the cross-sectional area of the hollow chamber 16 of the hollow mounting portion 15 is formed to be wider on the gas injection port P side and gradually narrower toward the inner side, and based on this, the wall thickness of the seal mounting wall 17 of the hollow mounting portion 15 is determined. Dimension h
Changes. For example, as shown in FIGS. 2 and 3A to 3C, the wall thickness dimension h1 of the seal mounting wall 17 near the gas inlet, the wall thickness dimension h2 of the middle portion, and the wall near the back side. The thickness dimension h3 changes in a relationship of h1 <h2 <h3. As shown in FIG. 11, the lower end of the first support leg 13 of the support 11 is provided with a mounting piece 13a for the door panel 1.
Are integrally formed as required.

Thereafter, as shown in FIG. 4C, a seal mounting wall 17 on one side of the hollow mounting portion 15 of the support 11 is provided.
From the vicinity of one end in the longitudinal direction to the vicinity of the other end, a substantially central portion in the height direction of the seal mounting wall 17 is removed by cutting, thereby communicating with the hollow chamber 16 and forming the outer surface of the seal mounting wall 17. Opening 19 opening to mounting surface 18
Are formed, whereby the support 11 is formed. Further, as shown in FIG. 9, when the support 11 is long,
The opening 19 is intermittently formed by removing the seal mounting wall 17 while leaving the connecting portion at a predetermined interval in the longitudinal direction of the seal mounting wall 17 of the support 11.

On the other hand, in the step of forming the seal body 30, an elastomer material such as a soft synthetic resin or rubber is used, and as shown in FIGS. The lip 40 and the lip 40 are integrally formed to form a molded product of the seal body 30. The seal body 30
When extrusion molding is performed, the height dimensions H1 to H3 of the legs 37 of the locking projections 36 of the seal body 30 are changed in accordance with the changes in the wall thickness dimensions h1 to h3 of the seal mounting wall 17 based on the gas assist injection molding. While sealing, the seal body 30 is extruded.

That is, as shown in FIG. 7, when the movable die 51 provided on the extrusion die 50 is moved forward and backward, the heights H1 to H3 of the leg portions 37 of the locking projections 36 of the seal body 30 are increased. Is changed. The wall thickness dimension h1 of the seal mounting wall 17 of the support 11 near the gas injection port P, the wall thickness dimension h2 of the middle portion, and the wall thickness dimension h3 of the back side are h1 <
When h2 <h3, the leg 37 of the locking projection 36 of the seal body 30 has a height H1 at one end near the gas inlet P, a height H2 at the middle, and The height dimension H3 of the other end changes in a relationship of H1 <H2 <H3. Of the projecting portions 32 of the seal body 30, the leading end surfaces of the sealing protrusions 34 projecting toward the window glass 3 and the lower inclined surface of the sealing lip 40 are provided with flocking 35 and 41 by flocking. Thus, the seal body 30 is formed. Also, as shown in FIG.
The connecting portion 17 extends in the longitudinal direction of the seal mounting wall 17 of the support 11.
In the case where the opening 19 is formed intermittently while leaving a, as shown in FIG.
In, a portion corresponding to the connecting portion 17a of the opening 19 is removed to provide a removing portion 36a.

Finally, the sealing body 3 is
In the step of assembling the seal member 30 with the opening 19 of the seal mounting wall 17 of the support body 11,
Press 6. Then, the locking portion 38 of the locking projection 36 is pushed toward the hollow chamber 16 of the hollow mounting portion 15 while elastically expanding the opening 19. And the locking projection 36
When the locking portion 38 of the seal mounting wall 17 passes through the opening 19, the opening 19 of the seal mounting wall 17 is elastically returned to the original state. And is engaged. The sealing body 30 is assembled and held on the support 11 by the engaging force of the locking portion 38 of the locking projection 36. As described above, the weather strip 10 is configured by assembling the seal body 30 with the support 11.

As described above, the first support leg 13 having the hollow mounting portion 15 on the upper portion, and the first support leg 13 formed opposite to the first support leg 13 from one side upper portion of the hollow mounting portion 15.
3 and two ends of the insertion groove 12 between the hollow chamber 16 of the hollow mounting portion 15 and the first and second support legs 13, 20. The support body 11 integrally provided with a terminal closing portion 25 for closing the upper half portion is integrally formed by gas-assisted injection molding.
It is composed of parts. For this reason, the number of components of the weather strip 10 and the number of assembling steps can be reduced, and costs can be reduced.

Further, the height dimensions H1, H2, H3 of the legs 37 of the locking projections 36 of the support 11 are determined by the seal mounting wall 17 of the hollow mounting portion 15 of the support 11 integrally formed by gas assist injection molding. Wall thickness h
The dimensions are set to be substantially the same corresponding to changes in 1, h2 and h3. As a result, the locking projection 36 is securely engaged with the seal mounting wall 17 without poor engagement, and the base 31 of the seal body 30 abuts the mounting surface 18 of the seal mounting wall 17 without any gap, and is assembled and held. In addition to this, it is possible to prevent the seal body 30 from rattling in the inward and outward directions with respect to the support 11.

In the above-described embodiment, a part of the seal mounting wall 17 of the hollow mounting portion 15 of the support 11 integrally formed by gas assist injection molding is removed by cutting, so that the hollow mounting portion 15 is removed. An opening 19 is formed, which communicates with the hollow chamber 16 and is open to the mounting surface 18 on the outer surface of the seal mounting wall 17, thereby forming the support 11.
It is not limited to this. For example, the first support leg 13 having the hollow mounting portion 15 is formed by air blow molding.
And the second support leg 2 formed to face the first support leg 13
0 and a terminal closing portion 25 for closing the upper half of both ends of the insertion groove 12 between the hollow chamber 16 of the hollow mounting portion 15 and the first and second support legs 13 and 20. It is also possible to form the support 11 by integrally forming the opening 11 and then removing a part of the seal mounting wall 17 on one side of the hollow mounting portion 15 by cutting off to form the opening 19.

The first support leg 13 having the hollow mounting portion 15, the second support leg 20 formed opposite to the first support leg 13 by ordinary injection molding without using gas assist, The hollow chamber 16 of the mounting portion 15 and the insertion groove 12 between the first and second support legs 13 and 20
It is also possible to integrally mold the support body 11 having the terminal closing portions 25 for closing the upper half portions of both ends of the support member 11 and having the opening 19 on one side of the hollow mounting portion 15. However, the support 1 was formed by ordinary injection molding without using gas assist.
1 is integrally formed, the hollow chamber 1 of the hollow mounting portion 15 is formed.
6 requires a slide die for forming an opening at one end, which may complicate the molding die and increase the production cost of the molding die.

[0034]

As described above, according to the first aspect of the present invention, unlike the related art, it is possible to save the labor of mounting the terminal cap after forming the terminal cap separately on the end of the support. Costs can be reduced by reducing the number of parts and the number of assembly steps. According to the second aspect of the present invention, even when the support is long, it is possible to reduce the strength of the seal mounting wall of the hollow mounting portion from being reduced by the opening, and to reduce the strength of the support. It is possible to prevent accidental detachment of the seal body. According to the third aspect of the present invention, the locking projection of the seal body can be securely engaged with the seal mounting wall of the support body without defective engagement, and the seal body can be prevented from rattling with the support body. can do. According to the invention as set forth in claim 4, the step of forming the support includes a hollow mounting portion having a hollow chamber in the longitudinal direction by gas-assisted injection molding, blow molding, injection molding, and the like, and a terminal closing portion. By integrally molding the support body, and then removing a part of the seal mounting wall of the hollow mounting section, a support body integrally having the terminal closing portion can be easily formed, and the terminal cap is separately molded. After that, the trouble of mounting can be saved. According to the fifth aspect of the present invention, a support having a hollow mounting portion having a hollow space in the longitudinal direction and a terminal closing portion can be easily formed by gas assist injection molding. According to the invention as set forth in claim 6, the height of the leg portion of the locking projection corresponds to the change in the wall thickness dimension of the seal mounting wall in the hollow mounting portion of the support integrally formed by gas assist injection molding. The support with the changed dimensions can be easily extruded.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a support and a seal of a weather strip for a vehicle according to an embodiment of the present invention, separately from each other.

FIG. 2 is a perspective view showing a state in which a weather strip is formed by assembling a support and a seal.

FIG. 3 is a line IIIA-IIIA of FIG. 2;
It is a cross-sectional view based on each of -IIIB line and IIIC-IIIC line.

FIG. 4 is an explanatory view of a process for forming a support.

FIG. 5 is a perspective view showing the seal body.

FIG. 6 is a view showing VIA-VIA line and VIB-VI line in FIG.
It is a cross-sectional view based on each of the B line and the VIC-VIC line.

FIG. 7 is a front view showing the die device for extrusion molding of the seal body.

FIG. 8 is an explanatory view showing a state in which a weather strip is mounted on a door panel of the vehicle.

FIG. 9 is a perspective view showing an embodiment in which the opening of the hollow mounting portion of the support is formed intermittently.

FIG. 10 is a perspective view showing an embodiment in which locking projections of the seal body are formed intermittently.

FIG. 11 is a perspective view showing an embodiment in which a mounting piece is integrally formed at the lower end of a first support leg of the support.

FIG. 12 is a perspective view showing a conventional weather strip support, a seal, and a terminal cap separately.

FIG. 13 is a cross-sectional view showing an assembling relationship between a support, a seal, and a terminal cap.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door panel 2 Flange 3 Window glass 10 Weather strip 11 Support body 13 First support leg 15 Hollow mounting part 16 Hollow chamber 17 Seal mounting wall 19 Opening 20 Second support leg 25 Terminal closing part 30 Seal body 36 Locking projection 37 Leg Part 38 locking part 40 seal lip

Claims (6)

[Claims] 1. A weather strip for a vehicle comprising a support and a seal body assembled to the support, wherein the support has a hollow mounting portion having a hollow chamber in a longitudinal direction thereof. A terminal closing portion is integrally formed at an end thereof, and a seal mounting wall formed on one side of the hollow mounting portion includes:
An opening that opens the hollow chamber is formed, and the seal mounting wall has a locking projection that is inserted into the hollow chamber through the opening to engage with the inner wall surface of the seal mounting wall. A weather strip for a vehicle, wherein the weather strip is configured to be attached with a seal body. 2. The weather strip for a vehicle according to claim 1, wherein an opening for opening the hollow chamber is formed intermittently in a longitudinal direction of the seal mounting wall in the seal mounting wall of the hollow mounting portion. A weather strip for a vehicle, characterized in that: 3. The weatherstrip for a vehicle according to claim 1, wherein the seal mounting wall of the hollow mounting portion of the support is formed such that its wall thickness dimension changes in the longitudinal direction, and the locking projection of the seal is A leg inserted into the opening of the seal mounting wall, a locking portion formed at the tip of the leg and engaging with an inner wall surface of the seal mounting wall, and a leg of the locking projection The height dimension of the vehicle weather strip is changed corresponding to the change of the wall thickness dimension of the seal mounting wall. 4. A method of forming a weatherstrip for a vehicle comprising a support and a seal attached to the support, comprising: forming a support; and forming a seal.
And a step of assembling a seal with the support.In the step of configuring the support, first, at the same time as forming the support, a hollow mounting portion having a hollow chamber in the longitudinal direction thereof is provided at an end thereof. Is molded integrally with each terminal block,
Thereafter, an opening is formed by removing a part of the seal mounting wall on one side of the hollow mounting portion. In the step of configuring the seal body, the hollow is formed through the opening of the seal mounting wall of the hollow mounting portion. A method for manufacturing a weather strip for a vehicle, comprising: integrally forming a seal having a locking projection which is engaged with an inner wall surface of the seal mounting wall by being inserted into a chamber. 5. The method for manufacturing a weatherstrip for a vehicle according to claim 4, wherein the step of forming the support comprises:
Manufacturing of a weatherstrip for a vehicle, wherein a support is formed by gas-assisted injection molding, and at the same time, a hollow mounting portion having a hollow chamber is formed integrally in a longitudinal direction thereof, and a terminal closing portion is formed integrally at an end thereof. Method. 6. The method for manufacturing a weather strip for a vehicle according to claim 5, wherein in the step of forming the seal, the seal is inserted into the hollow chamber through an opening of the seal mounting wall of the hollow mounting section. When the seal body having a locking projection that engages with the inner wall surface of the seal mounting wall is integrally formed by extrusion molding, it corresponds to the change in the wall thickness dimension of the seal mounting wall in the hollow mounting portion of the support based on gas assist injection molding A method for manufacturing a weather strip for a vehicle, comprising extruding a seal having a locking projection while changing the height of the leg of the locking projection.