Inside weather strip and molding method of folded part of the inside weather strip

Abstract

To provide an inside weather strip capable of forming a folded part of an inside weather strip in correspondence with a crank shape of a door waist part and of improving work efficiency and reducing costs by leaving a glass seal lip and a flocked part as they are.SOLUTION: An inside weather strip 21 is formed into a long shape by extrusion molding, and a mounting base portion 22 is provided with a notch forming part 29 at an upper end to be a folded part 28 of a door waist part, and two cut-out parts 30, 31 notched downward to each other are provided at both end parts in a longitudinal direction of the notch forming part. A notch part 32 is provided at a part corresponding to a folded part of a contact lip part 24. Hard resin materials are filled in the notch forming part and the respective cut-out parts in the state that the notch part is folded into a crank shape, and by filling prescribed resin material in the notch part, the contact lip part 24' and a rib 33 are formed.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to an inside weather strip for an automobile, and more particularly to an inside weather strip attached to a door waist portion bent in a crank shape of an automobile and a method for forming a bent portion of the inside weather strip.

Background Art

[0002] FIG. 1 is a front-side perspective view of a vehicle showing a door waist portion of a truck to which the inside weather strip of the present invention and a conventional inside weather strip are applied, and FIG. 6 is a perspective view showing a conventional inside weather strip.

[0003] As shown in FIG. 1, a vehicle door 2 of a vehicle 1 such as a truck is formed by integrally joining a door outer panel, which is a door panel, and a door inner panel by hemming or the like. It is composed of a lower door body 4 from the door waist portion 3, an upper arch-shaped door sash 5 from the door waist portion 3, and a door glass 6 that moves up and down between the door body 4 and the door sash 5.

[0004] The door waist portion 3 has a shape that is bent in a crank shape in a side view from a design perspective. As an inside weather strip 7 attached to such a door waist portion 3, there is one described in Patent Document 1 below.

[0005] As shown in FIG. 6, this inside weather strip 7 is formed by being bent in a crank shape in accordance with the shape of the door waist portion 3, and has a U-shaped cross-section mounting base 8 fixed to the door inner panel constituting the door waist portion 3, and two upper and lower glass seal lips 9 and 10 that are integrally provided on the outer surface of the mounting base 8 and are in sliding contact with one side surface of the door glass 6 that moves up and down. Both of these glass seal lips 9 and 10 are provided with a flocked portion (not shown) that is a low-friction material for reducing the sliding resistance against the door glass 6 at their respective tip portions and improving the appearance.

[0006] Incidentally, the inside weather strip 7 may also be referred to as an inner weather strip at the door waist portion 3, a waist inner seal, a belt line weather strip, or a door waist inside seal member, etc., focusing on the mounting position on the vehicle door 2.

[0007] And, as a method of bending the inside weather strip 7 into a crank shape, there are a method of bending the bending portion 7a by mold forming such as injection molding, and a method of bending a part of the extruded product by heat treatment at a high temperature.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0009] However, as described above, as a method of bending the bending portion 7a of the inside weather strip 7 into a crank shape, when the entire bending portion 7a is formed by mold forming, after this mold forming, it is necessary to adhere a flocked portion to the tip surfaces of the respective glass seal lips 9 and 10, for example, manually. This not only causes a decrease in the overall manufacturing work efficiency but also requires equipment for providing the flocked portion, resulting in an increase in processing costs.

[0010] Also, when a part of the inside weather strip 7 formed by extrusion molding is subjected to heat treatment, it is likely to be deformed due to the difference in the circumferential lengths of the inner peripheral side and the outer peripheral side and cannot be bent into a desired crank shape. In addition, a bending jig is also required, so there is also a possibility that the processing cost will increase in this regard.

[0011] The present invention has been devised in view of the technical problems of the conventional inside weather strip, and can bend an extruded inside weather strip according to the crank shape of the door waist portion, and can leave the glass seal lip and the flocked portion formed by extrusion as they are, thereby improving work efficiency and reducing costs. The present invention provides an inside weather strip that can achieve this.

Means for Solving the Problems

[0012] The invention described in claim 1 is an inside weather strip that is attached to a door waist portion bent in a crank shape of a vehicle door and slidably contacts a lifting door glass, The inside weather strip is formed in a long shape by extrusion molding, and has a mounting base fixed to a door inner panel provided in the door waist portion, and a glass seal lip that protrudes from the mounting base side toward the door glass side and slidably contacts the door glass through a flocked portion formed at the tip. The mounting base is provided with a notch forming portion formed by cutting along the longitudinal direction at the upper end portion that becomes a bending portion corresponding to the portion bent in the crank shape of the door waist portion, and two cut portions cut downward from each other are provided at both longitudinal ends of the notch forming portion. The bending portion is characterized in that it is bent into a crank shape through the notch forming portion and each cut portion and fixed by filling with a hard resin material having the same material as or a material close to that of the mounting base.

[0013] Further, the invention of the method for forming the bending portion of the inside weather strip described in claim 4 includes a step of cutting out a notch forming portion formed along the longitudinal direction at the upper end portion of the mounting base of the bending portion of the inside weather strip integrally formed by extrusion molding, and two cut portions formed at both longitudinal ends of the notch forming portion, by punching; A step of setting the bending portion inside a mold while bending it through the notch forming portion and the two cut portions; A step of filling the inside of the notch forming portion and each cut portion with a hard molten resin material having the same quality as or close to that of the mounting base portion in a state where the bent portion is set inside a molding die; A step of removing a part of the inside weather strip by releasing the molding die after cooling; It is characterized by having.

Effect of the Invention

[0014] According to the invention described in claim 1, an inside weather strip integrally formed by extrusion molding can be easily formed according to the crank shape of the door waist portion.

[0015] Moreover, by leaving the glass seal lip and the flocked portion that are in sliding contact with the door glass formed by extrusion molding as they are, it is not necessary to separately form the glass seal lip and the flocked portion afterwards. Therefore, the processing work efficiency can be improved and the manufacturing and processing costs can be reduced.

[0016] According to the invention described in claim 4, the crank-shaped bending operation can be easily performed in the molding die by the two cut portions provided in the mounting base portion. In addition, since the inside of the notch forming portion and each cut portion is filled with, for example, the same hard resin material as the mounting base portion, the compatibility of the materials is improved and a stable shape can be maintained after molding.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0018] Hereinafter, embodiments of the inside weather strip according to the present invention and a manufacturing method of the inside weather strip will be described with reference to the drawings.

[0019] FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 showing an embodiment of the inside weather strip according to the present invention.

[0020] The vehicle door 2 of a vehicle 1 such as a truck is composed of a lower door body 4 from the door waist portion 3 and an upper arch-shaped door sash 5 from the door waist portion 3 as shown in FIG. 1 described above.

[0021] The door waist portion 3 is a portion formed at the upper end of the door body 4 by the waist flange portion 11a of the door inner panel 11 described later and the waist flange portion of the door outer panel (not shown). As shown in FIG. 1, it is formed in a shape that is bent in a crank shape when viewed from the side in terms of design. An outer door glass run (not shown) is mounted on the inner periphery of the door sash 5, and the door glass 6 is guided and supported by this door glass run so as to be able to move up and down. Also, an outer door weather strip (not shown) is mounted in a closed loop shape on the inner peripheral edge portion of the vehicle door 2 including the door body 4 and the door sash 5 on the indoor side. When the door is closed, the door weather strip elastically contacts the peripheral edge of the door opening on the vehicle body side, thereby sealing the inside and outside of the vehicle compartment. As a result, airtightness, watertightness, sound insulation, etc. are ensured.

[0022] Also, as shown in FIG. 2, a resin door trim (interior lining) 12 with a predetermined decoration on its surface is mounted on the inner side (the indoor side surface) of the door body 4.

[0023] And, an inside weather strip 21 made of an elastomer of an olefin-based thermoplastic elastomer (TPV), for example, is attached to the waist flange portion 11a of the door inner panel 11. This inside weather strip 21 is formed by an extrusion molding method with a uniform cross-sectional shape in the longitudinal direction. As shown in FIG. 2, it includes a mounting base portion 22 attached to the door inner panel 11, a single glass seal lip 23 protruding obliquely upward from the lower part of this mounting base portion 22 toward the door glass 6 side, and a plate-shaped contact lip portion 24 formed integrally with the lower end portion of the mounting base portion 22 and contacting the inner surface 11b on the outside of the vehicle of the door inner panel 11.

[0024] The mounting base 22 is formed in a plate shape and extends along the longitudinal direction. The outer portion 22a on the vehicle outer side, that is, on the side of the door glass 6, is formed of a hard resin material of TPV, and the inner portion 22b provided to cover the outer portion 22a on the side opposite thereto is formed of a soft resin material of TPV. The outer portion 22a is formed in a thin plate shape, while the inner portion 22b is formed in a thinner cross-sectional reverse L shape and extends to the contact lip portion 24 while covering the upper end surface of the outer portion 22a. Further, the mounting base 22 is formed with an insertion hole 26 into which the leg portion of the clip 25 fixed to the door inner panel 11 is inserted at a predetermined position in the longitudinal direction, and is attached and fixed to the door inner panel 11 by the clip 25.

[0025] The glass seal lip 23 is formed in a substantially flat tongue shape and protrudes obliquely upward from the indoor side surface of the mounting base 22. Further, the glass seal lip 23 is covered with a flocked portion 27 which is a low friction material made of, for example, a silicone-based resin material, a fluorine-based resin material, or pile on the outer surface on the vehicle outer side. The flocked portion 27 elastically contacts the inner surface 6a on the vehicle inner side of the door glass 6, and during the raising and lowering operation of the door glass 6, it slides on the inner surface 6a to facilitate the raising and lowering operation.

[0026] As shown in FIG. 2, the contact lip portion 24 is formed in a substantially plate shape, and the lower portion is bent in a U shape in the vehicle interior direction from the upper end portion 24a integrally coupled to the lower end portion of the mounting base 22, and is formed in a tapered shape from this bent portion 24b to the lower end edge 24c.

[0027] And the inside weatherstrip 21 is bent in a crank shape corresponding to the crank shape of the door waist portion 3 described above.

[0028] That is, the inside weatherstrip 21 is formed with a bent portion 28 based on the forming process shown in FIGS. 3(a)(b) to 4(c)(d) described later.

[0029] As shown in FIGS. 3(b) and 5 described later, the inside weather strip 21 has an outer portion 22a of the hard resin material and an inner portion 22b of the soft resin material of the mounting base 22 corresponding to the crank-shaped bending portion 28, which are formed with elongated notches along the longitudinal direction. This notch-forming portion 29 is notched only by a predetermined width W on the upper end side, rather than the entire vertical width of the mounting base 22. At both longitudinal ends of this notch-forming portion 29, that is, at positions corresponding to the two crank-shaped bending portions of the door waist portion 3, two cut portions 30, 31 are cut in a substantially U shape toward the contact lip portion 24. Then, the notch-forming portion 29 and the two cut portions 30, 31 are filled with the same hard resin material as the material of the mounting base 22 by injection molding, which is a molding process described later.

[0030] Also, as shown in FIGS. 3(b) and 5, the contact lip portion 24 has a portion in the same region as the formation region of the bending portion 28 cut out in a strip shape along the longitudinal direction. In this cutout portion 32, as shown in FIG. 4(b) described later, a contact lip portion 24' made of the same soft resin material and having the same structure as the contact lip portion 24 is formed by injection molding. Further, as shown in FIGS. 2 and 4(b), a strip-shaped rib 33 is integrally provided on the outer surface of the contact lip portion 24' on the side of the glass seal lip 23. This rib 33 is formed in a rectangular cross-section by the same hard resin material as the material of the mounting base 22, and the length in the longitudinal direction is formed to be substantially the same as the length of the notch-forming portion 29. 〔Method for Forming the Bending Portion of the Inside Weather Strip〕 The bending portion 28 of the inside weather strip 21 is formed by the first to fifth steps shown in FIGS. 3(a)(b) and 4(c)(d).

[0031] Figure 3 shows the manufacturing process of the inside weather strip provided in this embodiment. (a) is a front view of the inside weather strip formed by extrusion molding, and (b) is a front view showing a state in which a part of the bent portion of the inside weather strip is punched. Figure 4 shows the manufacturing process of the inside weather strip following Figure 3. (c) is a front view showing a state in which a part of the inside weather strip is set in an injection molding die to form a bent portion, and (d) is a front view showing a state in which a molten resin material is filled in a part of the bent portion of the inside weather strip in the injection molding die. Figure 5 is a rear view showing a notch portion of the bent portion of the inside weather strip of this embodiment.

[0032] First, as shown in Fig. 3(a), an inside weather strip 21 of a predetermined length is integrally formed by extrusion molding (first step). That is, in this extrusion molding, the mounting base portion 22, the glass seal lip 23, and the contact lip portion 24 are simultaneously molded. Further, at the time of this extrusion molding, the flocked portion 27 is simultaneously molded on the outer surface of the contact lip portion 24.

[0033] Next, the bent portion 28 of the inside weather strip 21 is set in an injection molding die, which is a type of molding, and molded. Before this injection molding, as shown in Figs. 3(b) and 5, a notch forming portion 29 (the two-dot chain line portion in Fig. 3(b)) and two cut portions 30, 31 (the broken line portions) are previously cut out by punching in the bent portion 28. Also, as shown by the two-dot chain line, a portion corresponding to the formation region of the bent portion 28 of the contact lip portion 24 is cut out by punching to form a notch portion 32 (second step). In this way, in the state where each part is punched, as shown in Fig. 3(b), the glass seal lip 23 formed by the previous extrusion molding and the flocked portion 27 on the outer surface thereof remain in the bent portion 28.

[0034] Next, as shown in FIG. 4(c), the bent portion 28 of the inside weather strip 21 is set in the injection mold. That is, the portion to be the bent portion 28 is set in the injection mold while being bent into a crank shape using the notch forming portion 29 and the two cut portions 30 and 31 (third step). Needless to say, the injection mold is formed with a cavity having a shape that accommodates the bent portion 28 inside.

[0035] Next, as indicated by the dots in FIG. 4(d), a hard molten resin material that is the same as or substantially the same as the outer portion 22a of the mounting base 22 is filled into the notch forming portion 29 and the cut portions 30 and 31 in the injection mold. Also, the notch portion 32 on the contact lip portion 24 side is filled with the same soft molten resin material as the contact lip portion 24 to form the contact lip portion 24´. At the same time, a molten resin material of the same hard resin material as the outer portion 22a of the mounting base 22 is filled onto the outer surface of the contact lip portion 24´ on the glass seal lip 23 side to form the rib 33 (fourth step).

[0036] By this fourth step, the notch forming portion 29 and the cut portions 30 and 31 are filled with the filled resin material and buried in a state following the original shape of the mounting base 22. Also, in this fourth step, as described above, when the molten resin material is filled into the notch portion 32 of the contact lip portion 24, the contact lip portion 24´, which is a part of the notched contact lip portion 24, and the rib 33 are formed together.

[0037] Next, after cooling the injection mold, it is demolded and a part of the inside weather strip 21 is taken out from the mold (fifth step). Thereby, the forming operation of the crank-shaped bent portion 28 of the inside weather strip 21 is completed.

[0038] As described above, according to the present embodiment, the bent portion 28 can be formed in the inside weather strip 21 integrally formed by extrusion molding in accordance with the crank shape of the door waist portion 3.

[0039] Moreover, at the bending portion 28 of the inside weather strip 21, by leaving as it is the glass seal lip 23 that slidably contacts the door glass 6 and the flocked portion 27 provided on the outer surface of the glass seal lip 23, it becomes unnecessary to separately form the glass seal lip 23 and the flocked portion 27.

[0040] Therefore, it becomes unnecessary to manually form the flocked portion 27 afterwards, and since equipment for forming the flocked portion 27 is not required, the manufacturing work efficiency can be improved and the manufacturing and processing costs can be reduced.

[0041] Also, by providing each notch portion 30, 31, it becomes possible to disperse the stress when the mounting base portion 22 is bent. As a result, it becomes possible to easily bend a part of the inside weather strip 21 into a desired crank shape.

[0042] Furthermore, since the same hard resin material as the mounting base portion 22 is filled inside the notch forming portion 29 and each notch portion 30, 31, the compatibility of the materials is improved and a stable shape can be maintained after injection molding.

[0043] Also, by providing the belt-like rib 33 on the outer surface of the contact lip portion 24', the contact lip portion 24' of the bending portion 28 after molding can be made to follow the bent shape. That is, since the contact lip portion 24' after being molded by injection molding is likely to deform in the direction of returning to a straight line, similar to the extruded contact lip portion 24, this deformation in the straight line direction can be suppressed by the rib 33 made of a high-strength hard resin material, and thus an appropriate bent shape of the bending portion 28 can be maintained.

[0044] The present invention is not limited to the above-described embodiment. For example, the vertical width of the notch forming portion 29 of the inside weather strip 21, the depths of the notch portions 30, 31, etc. can be arbitrarily changed according to the bending angle, mode, etc. of the bending portion 28.

[0045] Further, the present invention can form the bent portion 28 by forming only the notch forming portion 29 and each cut portion 30, 31 without providing the notch portion 32 and filling the molten resin material into the injection mold here. That is, in the bending process of the inside weather strip 21, if the notch portion 32 is formed, the bendability in the injection mold becomes better. However, even if the notch portion 32 is not formed, good bendability in the injection mold can be obtained only by forming the notch forming portion 29 and each cut portion 30, 31.

[0046] Also, the cross-sectional shape of the inside weather strip 21 is not limited to the configuration of the above-described embodiment, and for example, it can be applied to those having the conventional structure or other structures.

[0047] As a method for forming the inside weather strip based on the embodiment described above and the bent portion of this inside weather strip, for example, the following modes can be considered.

[0048] That is, as a preferred aspect of the inside weather strip according to the present invention, it is an inside weather strip that is attached to a door waist portion bent in a crank shape of a vehicle door and slidably contacts an elevating door glass, The inside weather strip is formed in a long shape by extrusion molding, and has a mounting base fixed to a door inner panel provided in the door waist portion, and a glass seal lip that protrudes from the mounting base side toward the door glass side and slidably contacts the door glass through a flocked portion formed at the tip. The mounting base is provided with a notch forming portion that is notched along the longitudinal direction at an upper end portion that becomes a bent portion corresponding to a portion bent in a crank shape of the door waist portion, and two cut portions that are cut downward from both ends in the longitudinal direction of the notch forming portion are provided. The bent portion is filled and fixed with a hard resin material made of the same material as or a material similar to that of the mounting base in a state where it is bent in a crank shape through the notch forming portion and each cut portion.

[0049] According to an aspect of the present invention, the bent portion of the inside weather strip integrally formed by extrusion molding can be bent in accordance with the crank shape of the door waist portion through the notch forming portion and the cut portions, and the extruded glass seal lip and the flocked portion provided on the glass seal lip can be left as they are, eliminating the need to separately form the seal lip and the flocked portion. Therefore, cost reduction can be achieved. More preferably, a belt-shaped contact lip portion that contacts one side surface of the door inner panel is integrally provided below the mounting base in a state where the mounting base is fixed to the door inner panel, and a belt-shaped rib is provided on the outer surface of the contact lip portion on the side opposite to the door inner panel. The rib is formed at the same position as the longitudinal formation region of the notch forming portion of the mounting base and has substantially the same length as the notch forming portion.

[0050] According to an aspect of the present invention, the belt-shaped rib provided on the outer surface of the contact lip portion can suppress the linear deformation of the contact lip portion located at the bent portion and maintain the bent shape.

[0051] More preferably, the two cut portions are formed in a U shape, and the bent portion is bent around each cut portion to form a crank shape.

[0052] According to an aspect of the present invention, it is possible to disperse the stress when the mounting base of the bent portion is bent by each cut portion. As a result, it is possible to easily bend a part of the inside weather strip into a desired crank shape.

[0053] More preferably, it is a method for forming a bent portion of an inside weather strip, a step of cutting out, by punching, a notch forming portion formed along the longitudinal direction at the upper end of the mounting base portion of the bent portion of the inside weather strip integrally formed by extrusion molding, and two cut portions formed at both longitudinal ends of the notch forming portion; a step of setting the bent portion inside a mold while bending the bent portion through the notch forming portion and the two cut portions; a step of filling, with a hard molten resin material having the same quality as or similar to that of the mounting base portion, the inside of the notch forming portion and each cut portion in a state where the bent portion is set inside the mold; a step of removing a part of the inside weather strip by releasing the mold after cooling; characterized by comprising the above.

[0054] According to an aspect of the present invention, due to the two cut portions provided in the mounting base portion, a crank-shaped bending operation can be easily performed inside the mold. Further, since the inside of the notch forming portion and each cut portion are filled with, for example, the same hard resin material as the mounting base portion, the compatibility of the material is improved, and a stable shape can be maintained after molding.

[0055] More preferably, during the extrusion molding, a strip-shaped contact lip portion is integrally formed at the lower portion of the mounting base portion, a notch portion longitudinally cut by punching is formed at a position corresponding to the notch forming portion of the mounting base portion of the contact lip portion, during the molding in the mold, a contact lip portion having the same position as the longitudinal formation region of the notch forming portion of the mounting base portion and substantially the same length as the notch forming portion, and a rib along the longitudinal direction on the outer surface on the door glass side of the contact lip portion are formed in the notch portion.

[0056] According to an aspect of the present invention, the contact lip portion formed by filling the resin material into the notch during injection molding is likely to deform in the direction of returning linearly, similar to the extruded contact lip portion. Therefore, the linear deformation can be suppressed by ribs made of a high-strength hard resin material, and the bent shape can be maintained.

Explanation of Signs

[0057] 1…Vehicle 2…Vehicle door 3…Door waist portion 4…Door body 5…Door sash portion 7…Conventional inside weatherstrip 7a…Bending part of the conventional inside weatherstrip 11…Door inner panel 21…Inside weatherstrip according to an embodiment of the present invention 22…Mounting base 23…Glass seal lip 24…Contact lip portion 24´…Contact lip portion 25…Clip 27…Flocked portion 28…Bending part of the inside weatherstrip 29…Notch forming portion 30·31…Cutting portion 32…Notch 33…Rib

Claims

1. An inside weatherstrip that is attached to a door waist portion bent in a crank shape of a vehicle door and slidably contacts a vertically moving door glass, wherein the inside weatherstrip is formed in a long shape by extrusion molding, and has a mounting base portion fixed to a door inner panel provided in the door waist portion, and a glass seal lip that protrudes from the mounting base portion side toward the door glass side and slidably contacts the door glass via a flocked portion formed at a tip portion, the mounting base portion is provided with a notch forming portion formed with a notch along the longitudinal direction at an upper end portion that becomes a bent portion corresponding to a portion bent in a crank shape of the door waist portion, and two cut portions cut downward from each other are provided at both longitudinal ends of the notch forming portion, The inside weatherstrip is characterized in that the bent portion is filled and fixed with a hard resin material made of the same material as or a material close to that of the mounting base portion in a state of being bent in a crank shape through the notch forming portion and each cut portion.

2. The inside weatherstrip according to claim 1, wherein a belt-shaped contact lip portion that contacts one side surface of the door inner panel is integrally provided at a lower portion of the mounting base portion in a state where the mounting base portion is fixed to the door inner panel, and a belt-shaped rib is provided on an outer surface of the contact lip portion on the side opposite to the door inner panel, The inside weatherstrip is characterized in that the rib is formed at the same position as the longitudinal formation region of the notch forming portion of the mounting base portion and has substantially the same length as the notch forming portion.

3. The inside weatherstrip according to claim 1, wherein the two cut portions are formed in a U shape, and the bent portion is bent around each cut portion to form a crank shape.

4. A method for forming a bent portion of the inside weatherstrip according to claim 1, a step of cutting out a notch forming portion formed along the longitudinal direction at an upper end portion of a mounting base portion of the bent portion of the inside weatherstrip integrally formed by extrusion molding, and two cut portions formed at both longitudinal ends of the notch forming portion, by punching, The step of setting the bent portion into the inside of the mold while bending it through the notch forming portion and two cut portions; The step of filling the inside of the notch forming portion and each cut portion with a hard molten resin material having the same quality as or close to that of the mounting base portion in a state where the bent portion is set inside the mold; The step of removing a part of the inside weather strip by releasing the mold after cooling; A method for forming a bent portion of an inside weather strip, characterized by comprising the above steps.

5. A method for forming a bent portion of an inside weather strip according to claim 4, During the extrusion molding, a strip-shaped contact lip portion is formed together at the lower portion of the mounting base portion, and A notch portion cut along the longitudinal direction is formed by punching at a position corresponding to the notch forming portion of the mounting base portion of the contact lip portion, During the mold forming, at the notch portion, a contact lip portion having the same position as the longitudinal formation region of the notch forming portion of the mounting base portion and substantially the same length as the notch forming portion, and a rib along the longitudinal direction on the outer surface of the contact lip portion on the door glass side are formed. A method for forming a bent portion of an inside weather strip, characterized by the above.

Images