Insert member and integrally molded product

Abstract

To provide an integrally molded product capable of reducing possibility of a damage to a resin member of an insert molded product.SOLUTION: There is provided an insert member 10 comprising: a plane part 20; a cylindrical part 22 that is connected to an outer peripheral part 21 of the plane part 20 and is extending along a direction intersecting the plane part 20; and four pieces of protruding parts 23 which are provided on an end part 22a of the cylindrical part 22 on an opposite side to a side connected to the plane part 20, and are provided to protrude along a direction crossing the direction in which the cylindrical part 22 extends. The protruding parts 23 are provided so as to be spaced apart from the adjacent other protruding parts 23.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an insert member and a one-piece molded product. [Background technology]

[0002] A known example of a conventional insert molded product is the insert molded product described in Patent Document 1. This insert molded product is formed by inserting an insert member, which is a metal part, into an injection mold and performing insert molding by injecting a molten resin member around it, thereby integrally molding the insert member and the resin member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-15660 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the insert molded product described in Patent Document 1, in order to prevent the insert member from falling off the resin member when an external force is applied to the insert member after insert molding, a protrusion is provided on the insert member and this protrusion is bonded to the resin member to strengthen the bond between the insert member and the resin member. However, depending on the shape of the protrusion of the insert member, the thickness of the resin member at the portion bonded to this protrusion becomes thin, which creates a problem in that the resin member at that portion may be damaged.

[0005] The present invention has been made to solve such problems, and has an object to provide an integrally molded product that can reduce the possibility of the resin member of the insert molded product being damaged. [Means for solving the problem]

[0006] In order to solve the above problems, the insert member of the present invention is an insert member that is integrally molded with another member, and comprises a planar portion, a tubular portion connected to the outer periphery of the planar portion and extending along a direction intersecting the planar portion, and at least two protrusions provided on the end of the tubular portion opposite the side connected to the planar portion and protruding along a direction intersecting the extension direction of the tubular portion, and the protrusions are provided at a distance from the other adjacent protrusions.

[0007] The flat portion may be formed in a circular shape, and the protrusions may be provided at equal angular intervals. The protrusion may protrude outward from the cylindrical portion in a direction parallel to the flat portion. In addition, the protrusion may be formed so as to protrude outward from the tubular portion, and so that when viewed in a cross-sectional view from a direction perpendicular to the protruding direction and perpendicular to the extension direction of the tubular portion, the tip portion extends toward the planar portion. The protrusion may protrude outward from the cylindrical portion and have an uneven shape. The protrusion may protrude outward from the cylindrical portion and have a corrugated member when viewed in cross section from a direction perpendicular to the protruding direction and perpendicular to the extending direction of the cylindrical portion.

[0008] The integrally molded product according to the present invention may include an insert member, and a resin member formed from a molten resin material supplied around the insert member. Effect of the Invention

[0009] The insert member of the present invention comprises a planar portion, a tubular portion connected to the outer periphery of the planar portion and extending along a direction intersecting the planar portion, and at least two protrusions provided on the end of the tubular portion opposite the side connected to the planar portion and protruding along a direction intersecting the extension direction of the tubular portion, thereby reducing the possibility of damage to the resin member of the integrally molded product. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a front view of the insert member according to the first embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view taken along line AA' of the insert member shown in FIG. [Diagram 3] FIG. 1 is a front view of an insert molding according to a first embodiment of the present invention. [Figure 4] 4 is a cross-sectional view of the insert member shown in FIG. 3 along the line BB'. [Diagram 5] FIG. 1 is a cross-sectional view of an insert molding of a comparative example. [Figure 6] FIG. 11 is a front view of an insert member according to a second embodiment of the present invention. [Figure 7] 7 is a cross-sectional view taken along the line AA' of the insert member shown in FIG. 6. [Figure 8] FIG. 11 is a front view of an insert member according to a third embodiment of the present invention. [Figure 9] 9 is a cross-sectional view taken along the line AA' of the insert member shown in FIG. 8. [Figure 10] FIG. 11 is a front view of an insert member according to a fourth embodiment of the present invention. [Figure 11] 11 is a cross-sectional view taken along the line AA' of the insert member shown in FIG. [Figure 12] 12 is a partial enlarged view of a protruding portion of the insert member shown in FIG. 11. [Figure 13] FIG. 11 is a partially enlarged view of an insert member according to a fifth embodiment of the present invention. [Figure 14] 14 is a cross-sectional view of the protrusion shown in FIG. 13 along line GG'. [Figure 15] FIG. 13 is a partially enlarged view of an insert member according to a sixth embodiment of the present invention. [Figure 16] 16 is a cross-sectional view of the protrusion shown in FIG. 15 along line GG'. [Figure 17] FIG. 13 is a partially enlarged view of an insert member according to a seventh embodiment of the present invention. [Figure 18] 18 is a cross-sectional view of the protrusion shown in FIG. 17 along line GG'. [Figure 19] FIG. 13 is a partially enlarged view of an insert member according to an eighth embodiment of the present invention. [Figure 20] 20 is a cross-sectional view of the protrusion shown in FIG. 19 along line GG'. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Embodiment 1 Hereinafter, an insert member according to a first embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view of the insert member according to the first embodiment. The insert member 10 is made of stainless steel and has a circular flat portion 20, a cylindrical tubular portion 22 extending from an outer periphery 21 of the flat portion 20 in a direction perpendicular to the flat portion 20, and a protruding portion 23 protruding radially outward from the flat portion 20 in a direction perpendicular to the tubular portion 22. A total of four protruding portions 23 are provided, and the protruding portions 23 are arranged apart from each other so that the intervals between the central portions 24 of adjacent protruding portions 23 are equal angular intervals of 90° with respect to the center P of the flat portion 20. In addition, the tip portion 25 of each protruding portion 23 is formed in an arc shape. That is, the insert member 10 has alternating portions where the protruding portions 23 are provided and portions where the protruding portions 23 are not provided along the circumferential direction. In addition, the total length of the portions where the protruding portions 23 of the insert member 10 are provided and the total length of the portions where the protruding portions 23 are not provided are the same total length.

[0012] Fig. 2 is a cross-sectional view taken along line A-A' of the insert member 10 shown in Fig. 1. This cross-sectional view taken along line A-A' is a cross-sectional view taken from a direction perpendicular to the protruding direction of the protruding portion 23 and perpendicular to the extending direction of the cylindrical portion 22. The protruding portion 23 is provided on the end portion 22a of the cylindrical portion 22, which is opposite to the side connected to the flat portion 20.

[0013] 3 is a front view of the insert molded product according to the present embodiment 1. The insert molded product 100 is formed by integrally molding an insert member 10 and a cylindrical resin member 30 by insert molding. The resin member 30 is formed so that the inner diameter is smaller than the diameter of the tubular portion 22 of the insert member 10 and the outer diameter is larger than the diameter of the tubular portion 22 of the insert member 10.

[0014] FIG. 4 is a cross-sectional view of the insert molded product 100 shown in FIG. 3 taken along line B-B'. The insert member 10 is connected to an end of the resin member 30, and the cylindrical portion 22 and the protruding portion 23 of the insert member 10 are covered by the resin member 30. Part C is a portion where the resin member 30 covers the cylindrical portion 22 at the location of the protruding portion 23. In part D on the radial outer side of the protruding portion 23, the resin member 30 covers the protruding portion 23, and the radial thickness of the resin member 30 is formed thinner than that of part C. That is, in parts C and D, the resin member 30 is joined to the cylindrical portion 22 and the protruding portion 23. The protruding portion 23 is configured as a fall-off prevention structure for preventing the resin member 30 and the insert member 10 from being separated and the insert member 10 from falling off when an external force is applied to the insert member 10 along the extension direction of the cylindrical portion 22.

[0015] Part E is a part between the protruding parts 23 of the insert member 10 (see FIG. 1), i.e., a part where the protruding parts 23 are not formed, covered by the resin member 30, and the resin member 30 is bonded only to the cylindrical part 22. In part E, the thickness of the resin member 30 is the same as that of part C and is formed thicker than part D.

[0016] Fig. 5 is a cross-sectional view of an insert molded product of a comparative example. The cross-sectional position and projection direction of the cross-sectional view of Fig. 5 are the same as those of Fig. 4. In the insert molded product 101 of this comparative example, an insert member 11 is insert-molded into a resin member 30. Compared with the insert member 10 of the present embodiment 1 shown in Fig. 4, the insert member 11 shown in Fig. 5 has a protruding portion 23 formed over the entire circumferential circumference of the end portion 22a of the cylindrical portion 22. That is, the insert molded product 101 has a portion D over the entire circumferential circumference. The other configurations are the same as those of the insert molded product 100 shown in Fig. 4.

[0017] In the insert molded product 101 of this comparative example, the thickness of the resin member 30 is formed thin in a portion D where the resin member 30 covers the radial outside of the protruding portion 23. Also, in the insert molded product 101 of this comparative example, the portion D where the thickness of the resin member 30 is formed thinner than the portion C exists over the entire circumferential direction of the insert member 11. Therefore, when an external force is applied to the insert member 11 along the extending direction of the cylindrical portion 22, the portion D where the thickness of the resin member 30 is thinner than the portion C may be damaged, and the portion C formed on the radial outside of the cylindrical portion 22 may be separated and fall off.

[0018] On the other hand, in the present embodiment 1, as shown in Fig. 1, the portions where the protrusions 23 are provided and the portions where they are not provided alternate along the circumferential direction of the insert member 10, and the total length of the portions where the protrusions 23 are provided and the total length of the portions where the protrusions 23 are not provided are the same. Therefore, in the insert molded product 100 shown in Fig. 4, a portion D where the resin member 30 covers the radial outside of the protrusions 23 of the insert member 10 and a portion E where the resin member 30 covers the radial outside of the portion where the protrusions 23 are not present alternate along the circumferential direction. Since the protrusions 23 are not provided in the portion E, the wall thickness between the cylindrical portion 22 and the outer periphery of the resin member 30 in the portion E is formed to be thicker than that in the portion D.

[0019] That is, in the insert molded product 100, at the joint between the insert member 10 and the resin member 30, a portion D where a protrusion 23 for preventing the insert member 10 from falling off the resin member 30 is provided and a portion E where the protrusion 23 is not provided and the resin member 30 is formed thicker than the portion D are alternately provided, and since the total length of the portion D and the total length of the portion E are the same, a well-balanced configuration is obtained between the effect of preventing the insert member 10 from falling off by the protrusion 23 and the effect of ensuring the strength of the resin member 30 and preventing breakage by the portion E. In addition, since the protrusions 23 are provided at equal angular intervals of 90°, the load applied to the resin member 30 when a force is applied to the insert member 10 is made uniform around the entire circumference of the insert member 10, preventing the load from being concentrated in a specific location of the resin member 30. Therefore, in the insert molded product 100 of this embodiment 1, the insert member 10 has four protrusions 23, which can provide a balanced combination of the effects of preventing the insert member 10 from separating or falling off from the resin member 30 and preventing part C of the resin member 30 from separating, falling off or being damaged.

[0020] In this way, the insert member 10 in this embodiment 1 is an insert member that is integrally molded with the resin member 30, and includes a planar portion 20, a tubular portion 22 that is connected to the outer periphery 21 of the planar portion 20 and extends along a direction intersecting the planar portion 20, and four protrusions 23 that are provided on the end 22a of the tubular portion 22 opposite the side connected to the planar portion 20 and protrude along a direction intersecting the extension direction of the tubular portion 22, and since the protrusions 23 are provided at a distance from the adjacent protrusions 23, the possibility of the resin member 30 of the insert molded product 100 being damaged can be reduced.

[0021] In addition, since the flat portion 20 is formed in a circular shape and the protrusions 23 are each provided at equal angular intervals, the load applied to the resin member 30 when force is applied to the insert member 10 is made uniform around the entire circumference of the insert member 10, and the load is prevented from being concentrated in a specific location on the resin member 30, thereby reducing the possibility of damage to the resin member 30.

[0022] Furthermore, since the protrusion 23 protrudes outward from the tubular portion 22 in a direction parallel to the planar portion 20, the effect of preventing the insert member 10 from separating and falling off from the resin member 30 can be improved.

[0023] Furthermore, since the insert molded product 100 according to this embodiment 1 comprises the insert member 10 and the resin member 30 formed from the molten resin material supplied around the insert member 10, it is possible to provide an insert molded product 100 in which the possibility of the resin member 30 being damaged is reduced.

[0024] In this embodiment 1, the total length of the portions where protrusion 23 is provided and the total length of the portions where protrusion 23 is not provided are the same total length, but the total length of the portions where protrusion 23 is provided and the total length of the portions where protrusion 23 is not provided may be different.

[0025] Embodiment 2 Next, an insert member according to a second embodiment of the present invention will be described. In the following embodiments, the same reference characters as those in Fig. 1 to Fig. 5 denote the same or similar components as those in the first embodiment, and detailed descriptions thereof will be omitted. The insert member according to the second embodiment is different from the insert member of the first embodiment in that the number of protrusions is changed to three. Fig. 6 is a front view of an insert member 12 according to the second embodiment. Fig. 7 is a cross-sectional view of the insert member 12 shown in Fig. 6 taken along line A-A'. The insert member 12 has a total of three protrusions 23. The protrusions 23 are spaced apart from one another such that the intervals between the central portions 24 of adjacent protrusions 23 are equal angular intervals of 120° with respect to the center P of the planar portion 20. The other configurations are the same as those of the first embodiment.

[0026] Thus, the insert member 12 according to the second embodiment has three protruding portions 23 provided at equal angular intervals in the circumferential direction, which is fewer than the four protruding portions 23 in the first embodiment. Even with this configuration, it is possible to obtain the same effect as in the first embodiment of preventing the insert member 12 from separating from and falling off the resin member 30 (see FIG. 4) after insert molding, and the effect of preventing separation, falling off, or damage of portion C of the resin member 30.

[0027] Embodiment 3 Next, a description will be given of an insert member according to a third embodiment of the present invention. The insert member according to the third embodiment is different from the insert member according to the first embodiment in that the number of protrusions is changed to five. Fig. 8 is a front view of an insert member 13 according to the third embodiment. Fig. 9 is a cross-sectional view of the insert member 13 shown in Fig. 8 taken along line A-A'. The insert member 13 has a total of five protrusions 23. The protrusions 23 are spaced apart from one another such that the intervals between the central portions 24 of adjacent protrusions 23 are equal angular intervals of 72° with respect to the center P of the flat portion 20. The other configurations are the same as those of the first embodiment.

[0028] In this way, the insert member 13 according to the third embodiment has five protruding portions 23 provided at equal angular intervals in the circumferential direction, which is more than the four protruding portions 23 in the first embodiment. Even with this configuration, it is possible to obtain the same effect as in the first embodiment of preventing the insert member 13 from separating from and falling off the resin member 30 (see FIG. 4) after insert molding, and the effect of preventing separation, falling off, or damage of the portion C of the resin member 30.

[0029] In addition, in embodiment 1, four protrusions 23 are provided on the insert member 10, in embodiment 2, three protrusions 23 are provided on the insert member 12, and in embodiment 3, five protrusions 23 are provided on the insert member 13, but it is sufficient that at least two protrusions 23 are provided on the insert member, and any other appropriate number may be provided taking into consideration the balance between the effect of preventing the insert member from separating or falling off from the resin member 30 after insert molding and the effect of preventing separation, falling off or damage of portion C of the resin member 30.

[0030] In addition, in embodiments 1 to 3, each protrusion 23 is provided at equal angular intervals in the circumferential direction, but as long as it is possible to ensure the effect of preventing the insert member from separating or falling off from the resin member 30 and the effect of preventing separation, falling off or damage of portion C of the resin member 30, each protrusion 23 does not have to be provided at equal angular intervals in the circumferential direction.

[0031] Embodiment 4 Next, a description will be given of an insert member according to a fourth embodiment of the present invention. The insert member according to the fourth embodiment is different from the insert member according to the first embodiment in that the shape of the protruding portion is changed. 10 is a front view of the insert member 14 according to the present embodiment 4. The insert member 14 has a total of four protrusions 26. The protrusions 26 are spaced apart from one another such that the intervals between the central portions 24 of adjacent protrusions 26 are equal angular intervals of 90° with respect to the center P of the planar portion 20.

[0032] FIG. 11 is a cross-sectional view of the insert member 14 shown in FIG. 10 taken along line A-A'. The protruding portion 26 protrudes radially outward from the cylindrical portion 22. FIG. 12 is a partially enlarged view of the protruding portion 26 of the insert member 14 shown as part F in FIG. 11. The protruding portion 26 of the insert member 14 has a curved portion 27 that has a semicircular arc shape in cross section and protrudes radially outward. The tip portion 25 of the protruding portion 26 extends in the direction parallel to the cylindrical portion 22 toward the flat portion 20 shown in FIG. 11. That is, the protruding portion 26 is connected to the end portion 22a of the insert member 14, and has a U-shaped cross section.

[0033] In this way, the insert member 14 in this embodiment 4 is formed so that the protrusion 26 protrudes outward from the tubular portion 22 and the tip portion 25 extends toward the planar portion 20 when viewed in a cross-sectional view from a direction perpendicular to the protruding direction and perpendicular to the extension direction of the tubular portion 22. Therefore, compared to embodiment 1, the bonding strength between the protrusion 26 and the resin member 30 (see Figure 4) after insert molding is improved, and the effect of preventing the insert member 14 from separating and falling off from the resin member 30 can be improved.

[0034] In this embodiment 4, the protrusion 26 is formed so that the cross-sectional shape of the curved portion 27 is U-shaped, but as long as the tip 25 of the protrusion 26 extends in the direction of the planar portion 20, the cross-sectional shape of the curved portion 27 of the protrusion 26 may be formed to be other shapes, such as V-shaped.

[0035] Embodiment 5. Next, a description will be given of an insert member according to a fifth embodiment of the present invention. The insert member according to the fifth embodiment is different from the insert member according to the first embodiment in that the shape of the protruding portion is changed. Fig. 13 is a partial enlarged view of the protruding portion 40 of the insert member 15 according to the present embodiment 5. The protruding portion 40 has a conical convex portion 41 whose center is located between the center P (see Fig. 1) of the flat portion 20 and the central portion 24. The convex portion 41 constitutes an uneven portion.

[0036] Fig. 14 is a cross-sectional view of the protruding portion 40 shown in Fig. 12 taken along line G-G'. This cross-sectional view taken along line G-G' is a cross-sectional view taken from a direction perpendicular to the protruding direction of the protruding portion 40 and perpendicular to the extending direction of the cylindrical portion 22. The convex portion 41 protrudes from the surface of the protruding portion 40 and has a conical shape. In addition, the back surface of the protruding portion 40 has a concave shape. The other configurations are the same as those of the first embodiment.

[0037] In this way, the insert member 15 of this embodiment 5 has a protrusion 40 that protrudes outward from the tubular portion 22 and has a convex portion 41, thereby improving the bonding strength between the protrusion 40 and the resin member 30 (see Figure 4) after insert molding, and improving the effect of preventing the insert member 15 from separating and falling off from the resin member 30.

[0038] Embodiment 6 Next, an insert member according to a sixth embodiment of the present invention will be described. The insert member according to the sixth embodiment has a modified shape of the protrusion compared to the insert member according to the first embodiment. In the following embodiments, the same reference numerals as those in Figs. 13 and 14 denote the same or similar components as those in the fifth embodiment, and therefore detailed descriptions thereof will be omitted. 15 is a partial enlarged view of the protruding portion 42 of the insert member 16 according to the present embodiment 6. The protruding portion 42 has a wedge-shaped convex portion 43 whose center is located between the center P of the flat portion 20 (see FIG. 1) and the central portion 24.

[0039] Fig. 16 is a cross-sectional view of the protruding portion 42 shown in Fig. 15 taken along line G-G'. The convex portion 43 is formed by cutting the surface of the protruding portion 42 into a wedge shape and bending the cut portion to protrude from the surface of the protruding portion 42. In addition, a concave portion 44, which is a wedge-shaped hole, is formed on the back side of the protruding portion 42 by bending the convex portion 43. The convex portion 43 and the concave portion 44 form an uneven portion. The other configurations are the same as those of the first embodiment.

[0040] In this way, the insert member 16 of this embodiment 6 has a protrusion 42 that protrudes outward from the tubular portion 22 and has a convex portion 43 and a concave portion 44, thereby improving the bonding strength between the protrusion 42 and the resin member 30 (see Figure 4) after insert molding, and improving the effect of preventing the insert member 16 from separating and falling off from the resin member 30.

[0041] Embodiment 7 Next, a description will be given of an insert member according to a seventh embodiment of the present invention. The insert member according to the seventh embodiment is different from the insert member according to the first embodiment in that the shape of the protruding portion is changed. FIG. 17 is a partial enlarged view of the protruding portion 45 of the insert member 17 according to the seventh embodiment. The protruding portion 45 extends along the circumferential direction of the insert member 17 and has an uneven portion 46 whose center is located between the center P (see FIG. 1) of the flat portion 20 and the central portion 24. The uneven portion 46 is divided into seven portions, and the portion closest to the central portion 24 is a convex portion 46a formed by protruding toward the flat portion 20. Next, between the convex portion 46a and the end of the uneven portion 46, a concave portion 46b recessed in a direction away from the flat portion 20 and a convex portion 46a are alternately formed adjacent to each other. The uneven portion 46 constitutes an uneven portion.

[0042] Fig. 18 is a cross-sectional view of the protrusion 45 shown in Fig. 17 taken along line G-G'. When the concave-convex portion 46 is viewed in cross section along line G-G', the convex portion 46a and the concave portion 46b are formed apart from each other. The other configurations are the same as those of the first embodiment.

[0043] In this way, in the insert member 17 of this embodiment 7, the protrusion 45 protrudes outward from the tubular portion 22 and has the uneven portion 46, so that the bonding strength between the protrusion 45 and the resin member 30 (see Figure 4) after insert molding is improved, and the effect of preventing the insert member 17 from separating and falling off from the resin member 30 can be improved.

[0044] The shapes of the convex portion 41 of the protrusion 40 in embodiment 5, the convex portion 43 and the concave portion 44 of the protrusion 42 in embodiment 6, and the shape of the uneven portion 46 of the protrusion 45 in embodiment 7 are merely examples and are not limited thereto, and the protrusion may be formed into any other shape that can improve the bonding strength between the protrusion and the resin member 30 after insert molding.

[0045] Embodiment 8 Next, a description will be given of an insert member according to an eighth embodiment of the present invention. The insert member according to the eighth embodiment is different from the insert member according to the first embodiment in that the shape of the protruding portion is changed. Fig. 19 is a partial enlarged view of the protruding portion 47 of the insert member 18 according to the eighth embodiment. The protruding portion 47 has a wave-shaped portion 48 whose center is located between the center P (see Fig. 1) of the flat portion 20 and the central portion 24. The wave-shaped portion 48 has a convex portion 48a formed so as to protrude toward the flat portion 20 in an arc shape along the protruding portion 47, and a concave portion 48b formed so as to be recessed in an arc shape along the protruding portion 47 in a direction away from the flat portion 20.

[0046] Fig. 19 is a cross-sectional view of the protruding portion 47 shown in Fig. 18 taken along line G-G'. When the corrugated portion 48 is viewed in cross section along line G-G', the corrugated portion 48 has convex portions 48a and concave portions 48b, and is formed in a corrugated shape. In other words, the corrugated portion 48 has a bellows-like structure. The other configurations are the same as those of the first embodiment.

[0047] In this way, the insert member 18 of this embodiment 8 has a protrusion 47 that protrudes outward from the tubular portion 22 and has a corrugated portion 48 that has a corrugated shape when viewed in a cross-sectional view from a direction perpendicular to the protruding direction and perpendicular to the extension direction of the tubular portion 22.This improves the bonding strength between the protrusion 47 and the resin member 30 (see Figure 4) after insert molding, and improves the effect of preventing the insert member 18 from separating and falling off from the resin member 30.

[0048] The shape of the corrugated portion 48 of the protrusion 47 in embodiment 8 is merely an example and is not limited thereto, and the corrugated portion may be formed into any other shape that can improve the bonding strength between the protrusion 47 and the resin member 30 after insert molding.

[0049] Although the insert members 10 and 12-16 in embodiments 1-8 are formed from stainless steel, the material is not limited to this, and the insert members may be molded from any material, such as other types of metallic materials such as aluminum, non-metallic materials such as ceramics, or other types of resin materials.

[0050] Further, the insert members 10 and 12 to 16 in the first to eighth embodiments have a circular planar portion 20 and a cylindrical tubular portion 22, and have a cylindrical resin member 30, but are not limited to this. For example, the planar portion of the insert member may be rectangular, the tubular portion may be angular, and the resin member may be angular.

[0051] The components included in the first to eighth embodiments of the present invention and the components included in the variations thereof can be used in any suitable combination.

[0052] Although the preferred embodiments have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims.

[0053] Various aspects of the present disclosure are summarized below as appendices.

[0054] (Appendix 1) An insert member that is integrally molded with another member, A flat portion (20); a cylindrical portion (22) connected to an outer periphery (21) of the flat portion (20) and extending along a direction intersecting the flat portion (20); At least two protrusions (23) are provided on an end (22a) of the cylindrical portion (22) opposite to the end connected to the flat portion (20), and protrude along a direction intersecting the extending direction of the cylindrical portion (22); Equipped with The protrusion (23) is an insert member provided so as to be spaced apart from the adjacent protrusions (23). (Appendix 2) The planar portion (20) is formed in a circular shape, 2. The insert member according to claim 1, wherein the protrusions (23) are provided at equal angular intervals. (Appendix 3) 3. The insert member according to any one of claims 1 to 2, wherein the protrusion (23) protrudes outward from the cylindrical portion (22) along a direction parallel to the flat portion (20). (Appendix 4) The insert member according to any one of claims 1 to 3, wherein the protrusion (26) protrudes outward from the tubular portion (22) and has a tip portion (25) formed to extend in the direction of the planar portion (20) when viewed in a cross-sectional view perpendicular to the protruding direction and perpendicular to the extension direction of the tubular portion (22). (Appendix 5) The insert member according to any one of claims 1 to 4, wherein the protrusions (40, 42, 45) protrude outwardly from the cylindrical portion (22) and have uneven portions (41, 43, 44, 46). (Appendix 6) The insert member according to any one of Appendices 1 to 4, wherein the protrusion (47) protrudes outward from the tubular portion (22) and has a wave-shaped portion (48) when viewed in a cross-sectional view from a direction perpendicular to the protruding direction and perpendicular to the extension direction of the tubular portion (22). (Appendix 7) An insert member (10) according to any one of appendix 1 to 6, a resin member (30) formed by molten resin material supplied around the insert member (10); An integrally molded product comprising: [Industrial Applicability]

[0055] The insert member 10 of the present invention is an insert member integrally molded with a resin member 30, and comprises a planar portion 20, a tubular portion 22 connected to an outer periphery 21 of the planar portion 20 and extending along a direction intersecting the planar portion 20, and four protrusions 23 provided on an end 22a of the tubular portion 22 opposite the side connected to the planar portion 20 and protruding along a direction intersecting the extension direction of the tubular portion 22, and since the protrusions 23 are provided at a distance from the adjacent other protrusions 23, the possibility of damage to the resin member 30 of the insert molded product 100 can be reduced, and the insert member 10 is suitable for use as an integrally molded product molded by insert molding. [Explanation of symbols]

[0056] 10 Insert member 12 Insert material 13 Insert material 14 Insert material 15 Insert material 16 Insert material 17 Insert material 18 Insert material 20 Plane part 21 Outer periphery 22 Cylindrical part 22a end 23 Protrusion 25 Tip 26 Protrusion 30 Resin parts 40 Protrusion 41 Convex part (uneven part) 42 Protrusion 43 Convex part (uneven part) 44 Concave part (uneven part) 45 Protrusion 46 Uneven part (uneven part) 47 Protrusion 48 Wave shaped part

Claims

1. An insert member that is integrally molded with another member, A plane portion (20); a cylindrical portion (22) connected to an outer periphery (21) of the planar portion (20) and extending along a direction intersecting the planar portion (20); At least two protrusions (23) are provided on an end (22a) of the cylindrical portion (22) opposite to the end connected to the flat portion (20), and protrude along a direction intersecting the extending direction of the cylindrical portion (22); Equipped with The protrusion (23) is an insert member provided so as to be spaced apart from adjacent protrusions (23).

2. The planar portion (20) is formed in a circular shape, 2. The insert member according to claim 1, wherein said protrusions (23) are provided at equal angular intervals.

3. 3. The insert member according to claim 1 or 2, wherein the protrusion (23) protrudes outwardly from the cylindrical portion (22) along a direction parallel to the flat portion (20).

4. The insert member according to claim 1 or 2, wherein the protrusion (26) protrudes outward from the tubular portion (22), and when viewed in a cross-sectional view from a direction perpendicular to the protruding direction and perpendicular to the extension direction of the tubular portion (22), a tip portion (25) is formed so as to extend in the direction of the planar portion (20).

5. 3. The insert member according to claim 1 or 2, wherein the protrusion (40, 42, 45) protrudes outward from the cylindrical portion (22) and has an uneven portion (41, 43, 44, 46).

6. The insert member according to claim 1 or 2, wherein the protrusion (47) protrudes outward from the tubular portion (22) and has a wave-shaped portion (48) when viewed in a cross-sectional view from a direction perpendicular to the protruding direction and perpendicular to the extension direction of the tubular portion (22).

7. An insert member (10) according to claim 1 or 2; a resin member (30) formed by molten resin material supplied around the insert member (10); An integrally molded product comprising:

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