JP2004167992A - Molded component with mounting seat, its molding method and molding die - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molded component having a mounting seat which has less edge parts and dies to strike a balance between unaltered mounting and simplicity in shaping, its molding method, and its molding die. <P>SOLUTION: This molded component comprises a base 2 and a mounting seat 4 of a nearly horseshoe shape at a cross section projected from a rear face of the base containing both a hollow section 5 and a mounting hole 7 through-type formed on an end face 6 to be communicated to the hollow section. In the mounting seat 4, peripheral wall surface 9 of the mounting hole is out of square for the rear face 3 of the base, both a pair of standing walls 8 projecting mutually-spaced away from the base and a cover wall 15 connected with it compose the hollow section, while the mounting hole formed on the cover wall is opened to one end of the cover wall between the pair of standing walls, and a bridge section 22 projected from outer surface of the cover wall to couple both ends of the mounting hole is formed on its end. Further in the above die used for molding, opening/closing direction of both a first shaping die 23 forming base surface and a second shaping die 10 forming base backside, peripheral surface of the mounting seat and bridge section is crossed with a sliding direction of a slide core 25 forming the hollow section and the above mounting hole. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded product having a mounting seat for mounting a base and a mating member, a molding method for the molded product, and a molding die for the molded product, and more particularly, to achieving both stable mounting and ease of molding. The present invention relates to a molded product having a mounting seat, a molding method thereof, and a molding die therefor.
[0002]
[Prior art]
2. Description of the Related Art There are conventionally various molded products having a mounting seat for mounting a base and a mating member (for example, Patent Document 1). A molded product having a mounting seat disclosed in Patent Document 1 has a substantially U-shaped cross section projecting from the back surface of the base, and the mounting seat has a substantially U-shaped internal hollow. A hollow portion and a mounting hole penetrating through the protruding tip surface and communicating with the hollow portion are formed. Further, in the mounting seat disclosed in Patent Document 1, since the base is formed in a curved shape, the peripheral wall surface of the mounting hole is not perpendicular to the back surface of the base.
[0003]
When molding a mounting seat as shown here, usually, a first molding die for molding the surface of the base, a second molding die for molding the back surface of the base and the outer peripheral surface of the mounting seat, Molding using a slide core forming a hollow portion is performed. FIG. 1 is a schematic cross-sectional view of a molded product having a conventional mounting seat and a mold for molding the same, and FIG. 2 is an enlarged perspective view of a main part showing the mounting seat of the molded product having the conventional mounting seat.
[0004]
As shown in FIG. 1, when a conventional mounting seat is formed, in order to take out a molded product 100 having the mounting seat, a second forming die 101, a first forming die 102, and a first forming die for forming a hollow portion. It is necessary to open each of the slide cores 111. At this time, since the base 103 is formed in a curved shape, the opening / closing direction a of the second mold 101 cannot be set at a right angle to the back surface 104 of the base 103, and the mold is opened favorably. For this purpose, it is necessary to form the peripheral wall 106 of the mounting hole 105 so as to have an inclination parallel to the opening / closing direction a of the second mold 101.
[0005]
Therefore, the portion of the mounting seat 107 of the molded article 100 having the formed mounting seat has an edge shape in which the portion of the peripheral wall 106 on the side of the front end face 108 is enlarged in diameter, as shown in FIG. In this case, when a mating member is press-fitted into the hollow portion 109 from the tip end surface 108 through the mounting hole 105, the peripheral wall 106 formed into an edge shape is recessed into the hollow portion 109 by this press-fitting, and the diameter of the mounting hole 105 increases. Therefore, there is a problem that the mounting strength is reduced.
[0006]
Here, when a molded article having an attachment seat is applied to a pillar of a vehicle, one end of a pillar clip for attaching the pillar to the vehicle is attached to the attachment seat of the pillar, and the other end is fixed to the vehicle. In this case, for example, when the airbag is activated, the skirt portion of the airbag expands while entering the gap between the pillar and the vehicle body, so that the pillar and the clip for the pillar are subjected to a load in the expansion direction, that is, in the vehicle interior direction. It becomes. Therefore, in order to keep the pillar mounted by the pillar clip in a good condition, the mounting strength of the mounting seat needs to be high, and the mounting seat is desirably formed in a shape without an edge portion.
[0007]
Further, as shown in FIG. 3, by further providing a second slide core having an angle corresponding to the angle of the peripheral wall surface, molding can be performed without forming an edge portion, but in this case, the number of molds increases. However, there is a problem that the manufacturing cost increases.
[0008]
FIG. 3 is a schematic cross-sectional view showing another example of a molded product having a conventional mounting seat and a molding die therefor.
[0009]
As shown in FIG. 3, by further providing a second slide core 110 having an angle matching the angle of the surface of the peripheral wall 106, molding can be performed without forming an edge shape, but in this case, the number of molds increases. However, there is a problem that the manufacturing cost is increased.
[0010]
[Patent Document 1]
JP 2000-198466 A
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and provides a molded product having a mounting seat that can be manufactured with a small number of molds without forming an edge portion and that achieves both stable mounting and simplicity of molding. An object of the present invention is to provide a method and a molding die therefor.
[0012]
[Means for Solving the Problems]
A molded article having the mounting seat of the present invention that solves the above problem has a substantially U-shaped cross section having a base, a hollow protruding from the back surface of the base, and a through hole formed at the tip end surface and communicating with the hollow. Wherein the peripheral wall surface of the mounting hole is a molded product having a mounting seat that is not perpendicular to the back surface of the base, the mounting base including a pair of standing walls protruding apart from the base. A lid wall connecting the pair of upright walls, the pair of upright walls and the lid wall constitute the hollow portion, and the lid wall has the mounting hole formed therein, and the mounting hole is formed by the pair of upright walls. An opening is formed at one end of the lid wall, and a bridge projecting from an outer surface of the lid wall and connecting both sides of the mounting hole is formed at the open end.
[0013]
In the molded article having the mounting seat of the present invention, the peripheral wall of the mounting hole preferably has a uniform thickness.
[0014]
A mold for molding a molded article having a mounting seat according to the present invention is a mold for molding a molded article having the mounting seat according to claim 1, wherein the first molding die molds a surface of the base. A second molding die for molding the back surface of the base, the outer peripheral surface of the mounting seat and the bridge portion, and a slide core for molding the hollow portion and the mounting hole, wherein the first molding die and The opening and closing direction of the second mold and the sliding direction of the slide core intersect with each other.
[0015]
The method for molding a molded article having a mounting seat according to the present invention is a molding method for molding a molded article having the mounting seat according to claim 1 using a molding die according to claim 2. The part and the mounting hole are formed by the slide core.
[0016]
According to this configuration, since the mounting hole is open at one end of the lid wall between the pair of upright walls, a molding die for forming the mounting hole can be opened from the opening. Therefore, the molding die for forming the mounting hole can be opened in the same direction as the molding die for forming the hollow portion, and the molding die and the hollow portion for forming the mounting hole can be opened. Can be integrated with a molding die for molding. Furthermore, since a bridge projecting from the outer surface of the lid wall and connecting both sides of the mounting hole is formed at the opening end, the mating material inserted from the mounting hole by this bridge may be removed from the opening of the mounting hole. Therefore, the attachment between the base and the mating member is kept good. In addition, since this bridge protrudes from the outer surface of the lid wall, the opening of the molding die for forming the mounting hole is not hindered by the bridge, and a good opening is performed. It becomes possible.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The molded product having the mounting seat according to the present invention can be formed into various shapes, and can be applied to various products mounted by a method of inserting a mating material into a hollow portion through a mounting hole. As a preferred form of the molded article having the mounting seat of the present invention, for example, there is a member usually called a pillar garnish attached to a pillar of a vehicle so as to cover a surface of an airbag attached to the pillar. The pillar garnish has a mounting seat, and is fixed to the pillar by a clip mounted on the mounting seat. Further, the molded article having the mounting seat of the present invention can be formed from various known molding materials such as a resin material and a metal material.
[0018]
The molded article having the mounting seat of the present invention comprises a base and a mounting seat having a substantially U-shaped cross section having a mounting hole protruding from the back surface of the base and having a hollow portion and a through hole formed at the tip end surface and communicating with the hollow portion, The molded product has a mounting seat whose peripheral wall surface of the mounting hole is not perpendicular to the back surface of the base.
[0019]
In the molded article having the mounting seat of the present invention, the base is formed into various shapes such as a flat plate shape and a curved shape. The mounting seat is formed to have a substantially U-shaped cross section projecting from the rear surface of the base, and has a hollow portion that is a U-shaped interior, and a top end surface of a U-shaped upper portion. A mounting hole communicating with the hollow portion is formed in the distal end surface. In the molded article having the mounting seat of the present invention, when the base is formed into a curved shape, the back surface of the base is not formed in a fixed shape, and the peripheral wall surface of the mounting hole is not perpendicular to the back surface of the base. It has no shape. In the case where the base is formed in a flat plate shape, a tip end surface of the mounting seat protruding so as to be a U-shaped upper portion is formed with an inclination with respect to the base, and a peripheral wall surface of the mounting hole is formed on a back surface of the base. Has a shape that is not at right angles to.
[0020]
FIG. 4 is a view showing an example of a molded product having the mounting seat of the present invention and a molding die for the molded product. FIG. 5 is an enlarged perspective view of a main part of the mounting seat portion of the molded product having the mounting seat shown in FIG. 4, and FIG. 6 is an enlarged cross-sectional view of a main portion of the mounting seat portion. A molded product 1 having a mounting seat shown in FIG. 4 includes a base 2 and a mounting seat 4 protruding from a back surface 3 of the base 2. The mounting seat 4 has a substantially U-shaped cross section having a hollow portion 5 and a mounting hole 7 formed through the distal end surface 6 of the mounting seat 4 and communicating with the hollow portion 5. The mounting seat 4 has a pair of standing walls 8 protruding from the base 2. The base 2 is formed to be curved, and of the pair of standing walls 8, the first standing wall 11 located above the second molding die 10 forming the outer peripheral surface 9 of the mounting seat 4 in the opening / closing direction a has the opening / closing direction. It protrudes with an inclination in the direction of the hollow portion 5 from a. The second standing wall 12 located at the lower part of the second mold 10 in the opening and closing direction projects in a direction parallel to the opening and closing direction a.
[0021]
As shown in FIGS. 5 and 6, the first upright wall 11 and the second upright wall 12 have a base end 14 connected to the back surface 3 of the base 2 and a front end 13 connected by a substantially flat lid wall 15. The first standing wall 11, the second standing wall 12, and the lid wall 15 form the hollow portion 5. The mounting hole 7 formed in the front end surface 6 of the lid wall 15 is opened in the front end surface 6 and extends in the direction of the hollow portion 5, and communicates with the hollow portion 5. Further, the mounting hole 7 is open at one end of the side surface 17 of the lid wall 15 between the first standing wall 11 and the second standing wall 12. At the opening end 18 of the opening 16, a substantially prismatic bridge portion 22 projecting from the outer surface 19 of the lid wall 15 and connecting both ends 20 of the mounting hole 7 is formed. In the molded article 1 having the mounting seat shown here, the front surface 24 of the base 2 is formed by the first forming die 23, and the back surface 3 of the base 2, the outer peripheral surface 9 of the mounting seat 4, and the bridge are formed by the second forming die 10. The part 22 is formed, and the hollow part 5 and the mounting hole 7 are formed by the slide core 25.
[0022]
The second mold 10 is opened in the opening and closing direction a as shown in FIG. Here, since the slide core 25 slides so as to open from the opening 16 of the mounting hole 7 in conjunction with the opening of the second molding die 10, the sliding direction b of the slide core 25 is shown in FIG. Thus, the direction intersects the opening / closing direction a. Therefore, when the slide core 25 is slid in the sliding direction b, the portion 26 of the slide core 25 that forms the mounting hole 7 is opened from the opening 16 in the side surface 17 of the lid wall 15, so that the mounting seat 4 has an edge portion. The mounting hole 7 having a good shape without any holes is formed.
[0023]
In addition, in the example shown here, in order to prevent interference with the opening and closing of the second molding die 10 by the bridge portion 22 of the mounting seat 4, the side end portion of the bridge portion 22 located at the lower portion in the opening and closing direction a. Although 28 is formed parallel to the opening / closing direction a, the side end 28 may be formed parallel to the peripheral wall 27. In this case, for example, as shown in FIG. 9, the slide core 25 is composed of a main part 21 and a sub part 29, the hollow part 5 and the mounting hole 7 are formed by the main part 21, and the bridge part 22 is formed by the sub part 29. Preferably, the outer surface of the side end 28 is formed. At this time, by forming the shape of the end of the sub-portion 29 on the side of the second standing wall 12 in parallel with the opening / closing direction a, it is possible to prevent interference with the opening / closing of the second mold 10 and to prevent the main portion from being opened. It is possible to perform good molding without increasing the number of molds by integrating the sub-portion 21 and the sub-portion 29 and opening the mold by sliding in the same slide direction as the slide direction b shown in FIG. .
[0024]
Each standing wall of the mounting seat may be formed in a substantially flat plate shape, and may be configured to project parallel to each other to form a pair of standing walls, or each standing wall may be opposed at a predetermined angle. It may be appropriately set depending on the shape of the molded article having the mounting seat and the molding process. Further, a third standing wall projecting from the base may be further provided so as to connect the pair of standing walls. In this case, the rigidity of the mounting seat can be further improved by the third standing wall. Further, in order to further improve the rigidity, it is desirable that the third standing wall is also connected by the lid wall like the pair of standing walls.
[0025]
The mounting hole is formed so as to penetrate a lid wall serving as a front end face of the mounting seat, and opens at one end of the lid wall between a pair of upright walls. That is, in the molded article having the mounting seat of the present invention, the mounting hole communicates with the hollow portion and is continuous with the front end surface of the lid wall which is the mounting seat front end surface and the side surface located between the pair of standing walls. It opens. A bridge projecting from the outer surface of the lid wall and connecting both sides of the mounting hole is formed at the opening end. Since the bridge portion is formed so as to connect both sides of the mounting hole to the opening end of the mounting hole, the mating material inserted through the mounting hole does not come off from the opening end of the mounting hole without being detached from the mounting hole. Satisfactorily attached.
[0026]
The shape of the mounting hole may be a shape having a uniform width in the opening direction of the side surface. For example, depending on the shape of the mating member to be mounted, the peripheral wall may be formed to have a thickness difference in the hollow direction. Although good, the peripheral wall of the mounting hole preferably has a uniform thickness in order to more stably mount the mating member. When the thickness of the peripheral wall is uniform, the hole diameter of the mounting hole becomes constant in the direction of the hollow portion, and the retaining effect is favorably exhibited.
[0027]
The mold for molding a molded article having the mounting seat according to the present invention is a mold for molding the molded article having the above-described mounting seat. The molding die of the molded article of the present invention comprises a first molding die for molding the surface of the substrate, a second molding die for molding the back surface of the substrate and the outer peripheral surface of the mounting seat and a bridge portion, a hollow portion and And a slide core for forming a mounting hole. Then, the opening and closing directions of the first mold and the second mold intersect with the sliding direction of the slide core. When molding a conventional molded product with a mounting seat as shown in FIGS. 1 to 3, since the mounting hole is opened only in the direction of the hollow portion, the hollow portion is formed in order to form a mounting hole without an edge. In addition to the slide core, a slide core for forming the mounting hole was required. According to the molded article having the mounting seat of the present invention, since the mounting hole is formed to open at one end of the lid wall between the pair of upright walls, the sliding direction of the slide core for forming the hollow portion and the mounting hole are formed. Since the sliding direction of the slide core for molding the same can be made the same direction, both the hollow portion and the mounting portion can be molded with the same slide core. For this reason, it is possible to mold a molded product having a mounting seat having a well-shaped mounting hole without edges without increasing the number of molds.
[0028]
A method for molding a molded article having a mounting seat according to the present invention is a molding method for molding a molded article having the above-described mounting seat using the above-described molding die, wherein the hollow part and the mounting hole are formed by a slide core. It is a method of forming with. The number of molds can be reduced by forming the hollow portion and the mounting hole with the same slide core.
[0029]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0030]
(Example 1)
The molded product having the mounting seat according to the first embodiment of the present invention is a pillar garnish mounted on a vehicle. FIG. 10 is a cross-sectional view of the molded product having the mounting seat of this embodiment when the molded product is used. FIG. 11 is a schematic cross-sectional view of a molded article having the mounting seat of the present invention and a mold for molding the molded article.
[0031]
As shown in FIG. 10, the molded product 30 having the mounting seat of the first embodiment has a clip 31 for mounting a pillar to a vehicle, which is pressed into a hollow portion 33 through a mounting hole 32. In the molded product 30 having the mounting seat of the first embodiment, the mounting hole 32 is formed to penetrate the lid wall 36 which becomes the distal end surface 35 of the mounting seat 34, and is opened at one end of the lid wall 36 between the pair of standing walls 38. Therefore, the slide core 40 for forming the mounting hole 32 is opened from the opening 42 on the side surface 41 of the lid wall 36. Therefore, the slide core 40 for forming the mounting hole 32 and the slide core 43 for forming the hollow portion 33 can be integrated, and the slide cores 51 can be opened in the same direction. It becomes. Since the bridge portion 47 projecting from the outer surface 45 of the lid wall 36 and connecting both sides of the mounting hole 32 is formed at the opening end 44 of the mounting hole 32, the clip 31 for the pillar inserted through the mounting hole 32 is formed. Can be satisfactorily attached to the inside of the mounting hole 32 and the hollow portion 33 without detaching from the opening end 44 of the mounting hole 32.
[0032]
Further, in the first embodiment, the side end of the bridge 47 located below the opening / closing direction a so that the shape of the side end 48 of the bridge 47 does not interfere with the opening / closing direction a of the second molding die 49. The portion 50 is formed so as to be parallel to the mold opening direction a. Therefore, when the molded product 30 having the mounting seat of the first embodiment is formed, only the mounting hole 32 and the hollow portion 33 need to be formed by the slide core 51, so that the number of molds can be reduced and the forming can be performed. The shape of the mold can be made simpler.
[0033]
(Example 2)
The molded article 53 having the mounting seat according to the second embodiment of the present invention is the same as that of the second embodiment except that the base 54 is formed in a substantially flat plate shape, and the tip end surface 56 of the mounting seat 55 is formed to be inclined with respect to the base 54. Same as 1. FIG. 12 is a cross-sectional view of a molded product having the mounting seat of the second embodiment and a molding die for the molded product.
[0034]
As shown in FIG. 12, the mounting hole 58 is formed even when the base 54 is formed in a substantially flat plate shape, and the lid wall 57 serving as the tip end surface 56 of the mounting seat 55 is formed to be inclined with respect to the base 54. While the slide core 59 to be formed and the slide core 61 to form the hollow portion 60 are integrated, the bridge 63 can improve the mounting property of the mounting hole 58, thereby reducing the number of molds and stabilizing the mounting. Can be compatible.
[0035]
Example 3
The molded product having the mounting seat of the third embodiment of the present invention has the same configuration as that of the third embodiment except that the peripheral wall 67 of the mounting hole 66 is formed with a difference in thickness, and the portion of the peripheral wall 67 on the hollow portion 68 side is formed to have an enlarged diameter. This is the same as the first embodiment. FIG. 13 is an enlarged perspective view of a main part showing the mounting seat of the molded product having the mounting seat of the third embodiment.
[0036]
As shown in the third embodiment, according to the molded product having the mounting seat of the present invention, the molding method thereof, and the molding die thereof, the slide core for forming the mounting hole 66 is formed in the opening 72 of the side wall 72 of the lid wall 71. 73, the peripheral wall 67 of the mounting hole 66 can have various shapes, and the mounting hole 66 and the hollow portion 68 are formed by the same slide core. The number of molds can be reduced while maintaining the stability of the mounting by 75, and the manufacturing cost can be reduced.
[0037]
【The invention's effect】
As described above, according to the molded article having the mounting seat of the present invention, the molding method thereof, and the molding die thereof, the mounting hole is opened in a part of the lid wall between the pair of upright walls. The hollow portion and the mounting hole can be formed with the same slide core without forming an edge portion. Moreover, since a bridge projecting from the outer surface of the lid wall and connecting both sides of the mounting hole is formed at the opening end of the mounting hole, the mating member can be stably mounted. Further, since the hollow portion and the mounting hole are formed by the same slide core, the number of molds can be reduced, and the manufacturing cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a molded article having a conventional mounting seat and a mold for molding the same.
FIG. 2 is an enlarged perspective view of a main part showing a mounting seat of a molded product having a conventional mounting seat.
FIG. 3 is a schematic cross-sectional view of a conventional molded product having a mounting seat and a molding die thereof.
FIG. 4 is a cross-sectional view illustrating an example of a molded product having the mounting seat of the present invention and a molding die thereof.
5 is an enlarged perspective view of a main part of a mounting seat portion of a molded product having the mounting seat shown in FIG. 4;
6 is an enlarged cross-sectional view of a main part of a mounting seat portion of a molded product having the mounting seat shown in FIG. 4;
FIG. 7 is a cross-sectional view showing a molded product having the mounting seat of the present invention and a state in which a second molding die of the molding die is opened.
FIG. 8 is an enlarged perspective view of a main part showing a molded product having the mounting seat of the present invention and a mold for molding the slide core in an opened state.
FIG. 9 is a schematic sectional view showing an example of a molded product having the mounting seat of the present invention and a molding die for the molded product.
FIG. 10 is a sectional view of a molded product having a mounting seat according to the first embodiment of the present invention.
FIG. 11 is a schematic cross-sectional view of a molded product having a mounting seat according to the first embodiment of the present invention and a molding die thereof.
FIG. 12 is a cross-sectional view of a molded product having a mounting seat and a molding die according to a second embodiment of the present invention.
FIG. 13 is an enlarged perspective view of a main part showing a mounting seat in a molded product having a mounting seat according to a third embodiment of the present invention.
[Explanation of symbols]
100: Molded product having a mounting seat 101: Second molding die 101 102: First molding die 103: Base 104: Back surface 105: Mounting hole 106: Peripheral wall 107: Mounting seat 108: Tip surface 109: Hollow portion 110: Second slide core 111: First slide core 1: Molded product having mounting seat 2: Base 3: Back surface 4: Mounting seat 5: Hollow portion 6: Tip surface 7: Mounting hole 8: Pair of upright walls 9: Outer periphery Surface 10: Second forming die 11: First standing wall 12: Second standing wall 13: Tip 15: Lid wall 16: Opening 18: Open end 19: Outer surface 20: Both ends 22: Bridge 23: First Mold 24: Surface 25: Slide core 28: Side end 30: Molded product with mounting seat 32: Mounting hole 33: Hollow portion 34: Mounting seat 35: Tip surface 36: Lid wall 38: A pair of upright walls 42: Opening 45: Outer surface 47: Bridge 4 : Side end 49: Second molding die 51: Slide core 53: Molded product with mounting seat 54: Base 55: Mounting seat 56: Tip surface 58: Mounting hole 60: Hollow 63: Bridge 66: Mounting hole 67: Perimeter wall 68: Hollow part 71: Lid wall 75: Bridge part

Claims (4)

A base having a substantially U-shaped cross section having a hollow portion protruding from the back surface of the base and a through hole formed at the tip end surface and communicating with the hollow portion; Molded product with a mounting seat that is not perpendicular to the back of
The mounting seat includes a pair of upright walls protruding from the base body at a distance from each other, and a lid wall connecting the pair of upright walls, and the pair of upright walls and the lid walls constitute the hollow portion, and The mounting hole is formed in the wall,
The mounting hole is opened at one end of the lid wall between the pair of standing walls, and a bridge projecting from the outer surface of the lid wall and connecting both sides of the mounting hole is formed at the open end. Molded product with a characteristic mounting seat. The molded product having a mounting seat according to claim 1, wherein a peripheral wall of the mounting hole has a uniform thickness. A mold for molding a molded product having the mounting seat according to claim 1,
A first mold for molding the surface of the base;
A second mold for molding the back surface of the base, the outer peripheral surface of the mounting seat, and the bridge;
A slide core for molding the hollow portion and the mounting hole, wherein the opening and closing directions of the first molding die and the second molding die intersect with the sliding direction of the slide core. Mold for molding molded products with mounting seats. A molding method for molding a molded article having the mounting seat according to claim 1 by using a molding die according to claim 3.
A method of forming a molded product having a mounting seat, wherein the hollow portion and the mounting hole are formed by the slide core.

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