JPH04113923A - Window mould for automobile and method for moulding same - Google Patents

Abstract

PURPOSE:To set a level difference between each side of a front glass and an upper side easily, and reduce the cost by forming hollow parts in the upper side and each side part of the front glass to have different cross sections from each other in head parts having the hollow parts formed in predetermined cross sections by design members and joint members. CONSTITUTION:For a window mould for an automobile, a right and a left side zone 3 and an upper side zone 4 are moulded continuously long by extruding synthetic resin material. In this case, the right and left zone 3 has a leg part 11 to be inserted into a gap between the right and left side edge of a front glass 1, and a right and left side head part 12 for covering the gap. The right and left side head part 12 has a hollow part 15 or the like formed in a predetermined cross section by a design member 12b and a joint member 12a. In the meanwhile, the upper zone 4 has the leg part 11 to be inserted into a gap between an upper side edge of the front glass 1 and the window frame 2, and an upper head part 18 for covering the gap. In addition, the upper side head part has a deformed hollow part 19 of a smaller cross section than that of the hollow part 15 and of the different cross sectional form from it formed by a deformed design member 18b and a joint member 18a.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an automobile window molding installed in a gap between a windshield and a window frame, and in particular, the present invention relates to an automobile window molding that is installed in a gap between a windshield and a window frame, and in particular, the left and right side regions are molded in a cross-sectional shape different from the upper region. The present invention relates to a wind molding for an automobile and a method for molding the same.

[Prior Art] As conventional automobile window moldings of this type, the technologies published in Japanese Patent Application Laid-open No. 1-223018, Japanese Patent Application Laid-open No. 63-291721, and Japanese Utility Model Application No. 63-44815 are known. It is being

FIG. 11 is a front view showing the entire automobile window molding installed in the gap between the windshield and the window frame. 12 and 13 show a conventional automobile window molding disclosed in Japanese Patent Application Laid-Open No. 1-223018.
Figure 2 is an end view taken along the line A-A in Figure 11 showing both left and right regions;
FIG. 13 is an end view taken along the line B--B in FIG. 11 showing the upper region.

The automobile window molding shown in FIG. 11 is installed in left and right side areas 3 that are installed in the gaps between the left and right edges of the windshield 1 and the window frame 2, and in the gaps between the upper edge of the windshield 1 and the window frame 2. The entire body is formed into a long shape from a synthetic resin material. The left and right regions 3 protrude higher from the windshield 1 than the upper region 4 so that rainwater wiped away by the wiper 6 does not leak out to the side windows and enter the driver's seat.

Left and right side areas 3 in conventional automotive window moldings
As shown in FIG. 12, this includes long legs 31 that are inserted into the gaps between the left and right edges of the windshield 1 and the window frame 2, and a head 32 that covers the gaps. The long leg portion 31 is a first support piece 3 that supports the back surface of the peripheral edge of the windshield 1.
It has 3. In the gap between the head 32 and the windshield 1, there is a secondary molding 3, which is a separate molded product, to prevent the head 32 from deforming.
5 is inserted. Then, the long leg portion 31 is glued with adhesive 5.
It is fixed to the window frame 2 provided on both the left and right sides of the vehicle body through.

On the other hand, as shown in FIG. 13, the upper region 4 includes a short leg portion 36 that is inserted into the gap between the upper edge of the windshield 1 and the window frame 2, and a head portion 32 that covers the gap. There is. The short leg portions 36 are formed by cutting out the tip portions of the long leg portions 31 of the left and right side regions 3 along the cutting line 37 in FIG. It is equipped with The head 32 is molded in the same shape as the left and right regions 3. Then, the short legs 36 are glued with adhesive 5.
It is fixed to a window frame 2 provided at the front edge of the roof portion of the vehicle body through.

According to the conventional automobile window molding configured as described above, the windshield 1 is supported on the first support pieces 33 of the long legs 31 in the left and right side regions 3, and the windshield 1 and the head part 3 By inserting the sub-molding 35 between the upper and lower regions 3, the head portions 32 of the left and right regions 3 are provided at a higher position from the surface of the windshield l than that of the upper region 4.

Therefore, the rainwater wiped by the wiper 6 can flow downward along the secondary molding 35, thereby preventing rainwater from entering the driver's seat.

Incidentally, the automobile window moldings disclosed in Japanese Unexamined Patent Publication No. 63-291721 and Japanese Utility Model Application No. 63-44815 are almost the same as the above-mentioned conventional examples, but the support position of the leg relative to the windshield is changed. By doing so, the height of the head in both the left and right regions and the upper region can be changed.

[Problems to be Solved by the Invention] However, according to the conventional automobile window molding, it is necessary to assemble the secondary molding 35, which is a separate molded product, in the left and right side regions 3, which increases the number of parts and man-hours, and increases the cost. The problem was that it was expensive.

Further, since the short legs 36 of the upper region 4 are formed by cutting off the tip portions of the long legs 31 of the left and right regions 3, the yield of material is low and it is uneconomical.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a windshield molding for an automobile and a method for forming the same, in which the height difference between both sides and the upper side of a windshield can be easily set and costs can be reduced.

[Means for Solving the Problems] In order to solve the above problems, the automobile window molding of the present invention includes a leg part that is continuously inserted into the gap between the windshield and the window frame, and a leg part that is continuously inserted into the gap between the windshield and the window frame. A design piece that is integrally molded on the leg so as to cover the gap with the window frame and is continuously formed from a joint piece that joins to the surface of the windshield and a seal piece that comes into elastic contact with the outer surface of the window frame, and the design piece. and a head having a hollow part formed in a predetermined cross-sectional shape by a joining piece, and the hollow part of the head that covers the gap between the upper side of the windshield and the window frame is connected to both sides of the windshield and the window. It is formed in a different shape from the hollow part of the head that covers the gap with the frame.

In order to solve the above problems, the method for molding an automobile window molding of the present invention includes a leg part that is continuously inserted into the gap between the windshield and the window frame, and a leg part that is continuously inserted into the gap between the windshield and the window frame. A head part is integrally molded to cover the leg part and has a design piece continuously formed from a joint piece that joins to the surface of the windshield and a seal piece that comes into elastic contact with the outer surface of the window frame. A hollow part is formed in the part by the design piece and the joint piece.

[Function] In the automobile window molding of the present invention, the leg portion is molded in the same shape over its entire length, and is continuously inserted into the gap between the windshield and the window frame.

A head is integrally molded into this leg, and the hollow part of the head that covers the gap between the upper side of the windshield and the window frame is different from the hollow part of the head that covers the gap between both sides of the windshield and the window frame. It is formed in a shape different from that of the hollow part. And for example,
When both sides of the windshield are located high and the upper part is located low, the height difference between the both sides and the upper part can be easily created by simply deforming the head of the upper part. Cost reduction becomes possible.

In the method for molding an automobile window molding of the present invention, in the extrusion molding step, the leg portion is continuously inserted into the gap between the windshield and the window frame, and the leg portion is inserted continuously into the gap between the windshield and the window frame. Then, a head part is integrally molded with the leg part and has a design piece continuously formed from a joining piece that joins to the surface of the windshield and a sealing piece that comes into elastic contact with the outer surface of the window frame. Then, in the hollow part forming process, the size of the cross-sectional shape of the hollow part is determined by the joining position of the design piece and the joining piece on the head, and the difference in height between both sides of the windshield and the two sides is easily formed. This makes it possible to reduce costs.

[Embodiments] Hereinafter, embodiments embodying the present invention will be described based on the drawings.

<First Embodiment> FIGS. 1 to 5 show an automobile window molding according to a first embodiment of the present invention, FIG. 1 is a sectional view showing the left and right side regions 3 in an assembled state, and FIG. A sectional view showing the upper region 4 in an assembled state, FIG. 3 is a process schematic diagram illustrating a method for manufacturing an automobile window molding, FIG. 4 is an enlarged sectional view taken along the line CC in FIG. 3, and FIG. FIG. 4 is an enlarged sectional view taken along the line DD in FIG. 3;

In the drawings, the same reference numerals as in the conventional example indicate the same or corresponding components as in the conventional example.

The overall structure of the automobile window molding of the first embodiment is the same as that of the conventional one, and as shown in FIG. It is extruded from a molding machine and continuously molded into a long shape.

As shown in FIG. 1, the left and right regions 3 integrate leg parts 11 that are inserted into the gaps between the left and right edges of the windshield 1 and the window frame 2, and left and right heads 12 that cover the gaps. We are fully prepared. A support piece 13 that supports the back surface of the peripheral edge of the windshield 1 and a holding piece 14 that comes into elastic contact with the inner surface of the window frame 2 are provided in a protruding manner on the leg portion 11 . And leg 1
1 is fixed via adhesive 5 to window frames 2 provided on both left and right sides of the vehicle body. The left and right head portions 12 include a joining piece 12a to be joined to the surface of the windshield 1;
The design piece 12b1 fused to the design piece 2a and the hollow part 1 formed in a predetermined cross-sectional shape by the design piece 12b and the joint piece 12a
5, and a seal piece 16 that comes into elastic contact with the outer surface of the window frame 2.

On the other hand, as shown in FIG.
and an upper head portion 18 that covers the gap. The leg portion 11 is molded in the same shape as that of the left and right side regions 3, and is fixed to the window frame 2 provided at the front edge of the roof portion of the vehicle body via an adhesive 5. The upper head portion 18 includes a joint piece 18a that is joined to the surface of the windshield 1, and a design piece 12b that is rolled and deformed so as to be substantially shorter than the design pieces 12b of the left and right head portions 12, and is bonded to the joint piece 18a. The modified design piece 18b and the joined piece 18 to the modified design piece 18b
A deformed hollow portion 19 is formed with a smaller cross-sectional area and a different cross-sectional shape than the hollow portions 15 of the left and right head portions 12. Note that the joint piece 18a of the upper head portion 18 is molded in the same shape as the joint piece 12a of the left and right head portions 12.

In FIGS. 1 and 2, 20 is a metal wire inserted for reinforcement and prevention of expansion and contraction, and 21 is a dam for sealing the adhesive 5. In the illustrated example, the holding piece 14 and the sealing piece 16 are molded from the same material as the leg portion 11 and the head portion 12.18, but it is also possible to co-extrude these from a soft synthetic resin material. be.

Next, a method for forming the automobile window molding of this embodiment constructed as described above will be explained with reference to FIGS. 3 to 5.

A receiving jig 25 is installed near the extrusion head 24 of the extrusion molding machine 23.
and a pressure roller 26 are provided. The pressure roller 26 is preferably formed into a spherical shape, and is controlled to move between a chain line position and a solid line position in FIG. In addition, the receiving jig 25
An insertion groove 25a is provided between the extruded cross-sectional shape and the passageway.

Then, as shown in FIG. 4, the left and right head portions 12 of the left and right regions 3 are extruded from the extrusion head 24 in a state where they are separated from the design piece 12b or the joining piece 12a. Both left and right areas 3
When the pressure roller 26 is pushed out, the pressure roller 26 is placed at the position indicated by the chain line in FIG.
The second design piece 12b is pressed with a relatively weak force by the pressure roller 26, and as shown in FIG. A hollow portion 15 of the same shape is formed.

Further, when the upper region 4 is extruded from the extrusion head 24, the pressure roller 26 is placed at the solid line position in FIG. 3. Therefore, as shown in FIG. 5, the upper head 18 in the heat-softened state is strongly pressed by the pressure roller 26.
The tip of the modified design piece 18b is rolled up and fused to the joining piece 18a in a state where the length is substantially shorter than the design pieces 12b of the left and right head portions 12. As a result, a deformed hollow part 19 having a smaller cross-sectional area and a different cross-sectional shape than the hollow parts 15 of the left and right heads 12 is formed in the upper head part 18.

The extrusion molded product that has passed through the receiving jig 25 and the pressure roller 26 is
Next, it is sent to a cooling water tank 27, where it is cooled and hardened and held in each of the above-described shapes. Next, the extrusion molded product is pulled out by a pull-out roller 28 and transferred to a cutting machine 29, where it is cut into a predetermined length, that is, the total length of the left and right edges and the upper edge of the windshield 1. Ru.

The thus formed automobile window molding is transported to an automobile production line and installed in the gap between the window frame 2 and the windshield 1 of the vehicle body. In this case, the legs 11 of the left and right side areas 3 and the upper area 4 are continuously inserted into the gaps between the left and right side edges and the upper side edge of the windshield 1 and the window frame 2, and are fixed to the window frame 2 with the adhesive 5. be done. Then, as shown in FIG. 1, the left and right heads 12 of the left and right regions 3 protrude high from the surface of the windshield 1 and cover the gap between the left and right edges of the windshield 1 and the window frame 2. At the same time, the upper head 18 of the upper region 4 closes the gap between the upper edge of the windshield 1 and the window frame 2 in a state of protruding low from the surface of the windshield 1.

In the above explanation, the automobile window molding is installed in the gap between the windshield 1 and the window frame 2 on the automobile production line, but after the automobile windshield molding is attached to the windshield 1 first, the assembled parts are assembled into the automobile. It is also possible to transport it to the production line and assemble it into the vehicle body using an automatic assembly machine.

In this way, the automotive window molding of the first embodiment is
The legs 11 are made by extruding a synthetic resin material from an extrusion molding machine 23 and are continuously inserted into the gaps between the left and right edges and the upper edge of the windshield 1 and the window frame 2, and the left and right edges of the windshield 1. Left and right heads 12 are integrally molded on the leg 11 to cover the gap between the window frame 2 and an upper head 12 is integrally molded on the leg 11 to cover the gap between the upper edge of the windshield 1 and the window frame 2. The left and right head portions 12 each include a joint piece 12a that is joined to the surface of the windshield 1, a design piece 12b that is fused to the joint piece 12a, and a design piece 1 that is fused to the joint piece 12a.
2b and a hollow part 15 formed in a predetermined cross-sectional shape by the joint piece 12a, and the upper head part 18 has a joint piece 18a to be joined to the surface of the windshield 1, and a pressure roller 26 to form a hollow part 15 on both the left and right sides. A modified design piece 18b that is deformed to be substantially shorter than the design piece 12b of the portion 12 and fused to the joint piece 18a, and the modified design piece 18b and the joint piece 18.
a and a deformed hollow part 19 formed to have a smaller cross-sectional area and a different cross-sectional shape than the hollow parts 15 of the left and right head portions 12.

Therefore, according to the automobile window molding of the first embodiment, the left and right head parts 12 are easily deformed by rolling the deformed design piece 18b of the upper head part 18 with the pressure roller 26 immediately after extrusion molding. And the height difference of the upper temporal region 18 can be easily expressed. Therefore, unlike the conventional method, there is no need for the process of assembling separate molded products or cutting out a portion, and manufacturing costs can be significantly reduced.

Second embodiment> Next, a second embodiment of the present invention will be described.

6 to 8 show a second embodiment of an automobile window molding according to the present invention, FIG. 6 is a sectional view showing the left and right side regions 3 in an assembled state, and FIG. 7 shows an upper region 4 in an assembled state. FIG. 8 is a cross-sectional view showing the left and right regions 3 immediately after extrusion, illustrating a method of manufacturing an automobile window molding.

The automobile window molding of this second embodiment differs from the first embodiment in the method of deforming the deformed design piece 18b of the side head portion 18. Therefore, only the differences will be explained here, and the same components as in the first embodiment will be denoted by the same reference numerals in the drawings and their explanation will be omitted.

That is, when molding the automobile window molding of the second embodiment, first, the left and right head portions 12 of the left and right side regions 3 are
As shown in FIG. 8, the design piece 12b is extruded from the extrusion head 24 (see FIG. 3) in a state where it is separated from the bonded piece 12a, and then the design piece 12b is pressed by a pressure roller 26 with a relatively weak force. It is pressed and fused to the joining piece 12a as shown in FIG. 6, thereby forming a hollow part 15 with a predetermined cross-sectional shape in the left and right head portions 12.

Subsequently, when the upper head 18 is extruded from the extrusion head 24, the cutter 30 (see FIG. 8) disposed in front of the pressure roller 26 cuts the tip of the deformed design piece 18b into a predetermined width. After cutting, the cut surface is fused to the joining piece 18a by the pressure roller 26. As a result, as shown in FIG. 7, the length of the deformed design piece 18b becomes substantially shorter than the design piece 12b of the left and right head portions 12,
The upper head portion 18 is formed with a deformed hollow portion 19 having a smaller cross-sectional area and a different cross-sectional shape than the hollow portions 15 of the left and right head portions 12 .

In this way, the automotive window molding of the second embodiment is
Immediately after extrusion, the deformed design piece 18b of the upper head 18 is cut by a cutter 30, so that it is deformed to be substantially shorter than the design pieces 12b of the left and right heads 12. Therefore, as in the first embodiment, the difference in height between the left and right heads 12 and the upper head 18 can be easily created by simply cutting the deformed design piece 18b, thereby significantly reducing manufacturing costs. can be reduced to

Next, modifications of the above-mentioned first and second embodiments will be explained.

9 and 10 are cross-sectional views of the left and right regions 3 showing a modification common to the first embodiment and the second embodiment.

In the embodiment shown in FIG. 9, a shape-retaining material 40 made of a foamed synthetic resin material or a separately formed synthetic resin material is inserted into the hollow portion 15 from the open ends of the left and right head portions 12 after extrusion molding. ing.

Further, in the embodiment shown in FIG. 5, oblique shape-retaining ribs 41 are integrally molded within the hollow portions 15 of the left and right head portions 12 during extrusion molding. According to these configurations, when a relatively soft molding material is used in the automotive window moldings of the first embodiment and the second embodiment, the shape of the left and right head portions 12 of the hollow structure is maintained by the shape retaining material 40 or By holding the shape retaining rib 41, it is possible to prevent the surfaces of the left and right regions 3, that is, the design surface, from deforming due to external force when mounted on the vehicle body.

In addition, in each of the above embodiments, the deformed design piece 18b of the upper head 18 is deformed by rolling or cutting immediately after extrusion molding to provide a height difference, but the present invention is not limited to this. After the entire length of the automobile window molding is extruded into the cross-sectional shape shown in FIG. 5 or FIG. 8 and cooled and solidified, the deformed design piece 18b of the upper head part 18 is formed by heat pressing or high-frequency heating in secondary processing. It is also possible to provide a height difference by deforming and fusing to the joining piece 18a. Furthermore, the method of molding the automobile window molding is not limited to the extrusion molding method of the above embodiment, but an injection molding method may also be employed.

In this way, the automobile window molding of each of the above embodiments has a leg part 11 that is continuously inserted into the gap between the windshield 1 and the window frame 2, and a gap between the windshield 1 and the window frame 2. joint pieces 12a, 18a that are integrally molded with the leg portion 11 so as to cover the surface of the windshield 10;
and a design piece consisting of a design piece 12b and a modified design piece 18b continuously formed from the seal piece 16 that comes into elastic contact with the outer surface of the window frame 2, and a design piece and joint pieces 12a and 18a consisting of the design piece 12b and the modified design piece 18b. The head comprises left and right head parts 12 and an upper head part 18, each having a hollow part made up of a hollow part 15 formed in a predetermined cross-sectional shape and a deformed hollow part 19, and a head part made up of an upper head part 18. 2
The hollow part of the head that covers the gap between the windshield l
It is formed to have a smaller cross-sectional area and a different cross-sectional shape than the hollow part of the head which covers the gap between both sides of the window frame 2 and the window frame 2.

Therefore, immediately after extrusion molding, the height difference between the side part and the upper part can be easily created by simply rolling and deforming the design piece on the upper part. Therefore, unlike the conventional method, there is no need for the process of assembling separate molded products or cutting out a portion, making it possible to significantly reduce manufacturing costs.

Further, the automobile window molding of the above embodiment can be formed by the following molding method.

The method of molding the automobile window molding of the above embodiment includes a leg part 11 that is continuously inserted into the gap between the windshield 1 and the window frame 2, and a leg part 11 that is continuously inserted into the gap between the windshield 1 and the window frame 2, and a leg part 11 that covers the gap between the windshield 1 and the window frame 2. It is integrally molded with the leg portion 11, and is continuously formed from joint pieces 12a, 18a that join to the surface of the windshield 1, and a seal piece 16 that comes into elastic contact with the outer surface of the window frame 2, resulting in the design piece 12b and deformation. An extrusion molding step of extruding a head consisting of the left and right head portions 12 and the upper head portion 18 having a design piece to become the design piece 18b, and a hollow step of forming an arbitrary hollow part in the head with the design piece and the joint piece. It consists of a part forming process.

Therefore, the height difference between the left and right sides and the upper side can be easily created by a simple method of forming the legs 11 and the head by extrusion molding, and rolling and deforming the design piece of the head. Therefore, unlike the conventional method, there is no need for the process of assembling separate molded products or cutting out a portion, and manufacturing costs can be significantly reduced.

[Effects of the Invention] As described above, the automotive window molding of the present invention has leg parts that are continuously inserted into the gap between the windshield and the window frame, and covers the gap between the windshield and the window frame. A design piece that is integrally molded on the leg portion and is continuously formed from a joint piece that joins to the surface of the windshield and a seal piece that comes into elastic contact with the outer surface of the window frame, and a predetermined cross-sectional shape formed by the design piece and the joint piece. a head having a hollow portion formed in the windshield, the hollow portion of the head covering the gap between the upper side of the windshield and the window frame; The cross-sectional shape is different from that of the hollow part of the part.

Therefore, by simply changing the design piece of the head, it is possible to easily create a difference in height between both side parts and the upper part, thereby making it possible to reduce costs.

Furthermore, the method for molding an automotive window molding of the present invention includes:
A leg part that is continuously inserted into the gap between the windshield and the window frame, and a joint that is integrally molded with the leg part so as to cover the gap between the windshield and the window frame and is joined to the surface of the windshield. an extrusion molding process of extruding a head having a design piece continuously formed from a seal piece and a seal piece that comes into elastic contact with the outer surface of the window frame, and a hollow part of forming an arbitrary hollow part in the head with the design piece and the joining piece. The method includes a step of forming a part.

Therefore, the legs and the head are formed by extrusion,
The height difference between the left and right sides and the upper side can be easily created by simply rolling and deforming the design piece on the head. Therefore, unlike the conventional method, there is no need for the process of assembling separate molded products or cutting out a portion, and manufacturing costs can be significantly reduced.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of an automobile window molding according to the present invention, FIG. 1 is a cross-sectional view showing both left and right regions in an assembled state, and FIG. 2 shows an upper region in an assembled state. 3 is a process schematic diagram illustrating the manufacturing method of an automobile window molding, FIG. 4 is an enlarged sectional view taken along the line C-C in FIG. 3, and FIG. 5 is an enlarged sectional view taken along the line D-D in FIG. 3. It is an enlarged sectional view. 6 to 8 show a second embodiment of an automobile window molding according to the present invention, FIG. 6 is a cross-sectional view showing both left and right regions in an assembled state, and FIG. 7 shows an upper region in an assembled state. The cross-sectional view shown in FIG. 8 is a cross-sectional view showing both left and right regions immediately after extrusion. 9 and 10 are sectional views of left and right regions showing a modification common to the first embodiment and the second embodiment. FIG. 11 is a front view showing the entire automobile window molding. 12 and 13 show a conventional automobile window molding, and FIG. 12 shows the left and right sides of the area A-A in FIG. 11.
A line end view, Fig. 13 shows the upper area B- of Fig. 11
It is a B line end view. In the figure, 1: Windshield 2: Window frame 11: Legs 12: Left and right heads 12a: Joint piece 12b: Design piece 15: Hollow part 1
8: Upper head 18a: Joint piece 18b: Deformed design piece 19: Deformed hollow part. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts. Figure 5 Figure 4 Patent applicant Toyoda Gosei Co., Ltd. Agent Patent attorney Takehisa Higuchi and 1 other person Figure 6 Figure 7

Claims (2)

[Claims] (1) A leg part that is continuously inserted into the gap between the windshield and the window frame, and a leg part that is integrally molded with the leg part so as to cover the gap between the windshield and the window frame, and is attached to the surface of the windshield. It comprises a joint piece to be joined, a design piece continuously formed from a seal piece that comes into elastic contact with the outer surface of the window frame, and a head having a hollow part formed in a predetermined cross-sectional shape by the design piece and the joint piece, The hollow part of the head that covers the gap between the upper side of the windshield and the window frame is formed to have a different cross-sectional shape from the hollow part of the head that covers the gap between both sides of the windshield and the window frame. Wind molding for automobiles. (2) A leg part that is continuously inserted into the gap between the windshield and the window frame, and a leg part that is integrally molded with the leg part so as to cover the gap between the windshield and the window frame, and is formed on the surface of the windshield. An extrusion molding process of extruding a head having a design piece continuously formed from joint pieces to be joined and a seal piece elastically contacting the outer surface of the window frame, and forming an arbitrary hollow part in the head with the design piece and the joint piece. 1. A method for molding an automobile window molding, comprising the step of forming a hollow part.