Insert molded product

Abstract

To provide an insert molded product in which a good design effect can be easily obtained when viewed from below and a molded product body is not easily peeled off from an insert member.SOLUTION: An insert molded product 1 has an insert member 1a and a molded product main body 1b, and the insert member 1a comprises: an upper wall 2; a side peripheral wall 3 hanging down from the outer peripheral edge of the top wall 2; and a recess 4 that is formed on an upper surface of the upper wall 2, an outer peripheral surface of the side peripheral wall 3 and a lower end surface 3a of the side peripheral wall 3, and that is extending from the upper surface of the upper wall 2 through the outer peripheral surface of the side peripheral wall 3 to an inner peripheral edge of the lower end surface 3a of the side peripheral wall 3. The upper wall 2 has a gate hole 5 penetrating the upper wall 2 upward to the recess 4, and the molded product main body 1b is filled into the gate hole 5 and the recess 4 and the upper surface of the upper wall 2, the outer peripheral surface of the side wall 3, and the lower end surface 3a of the side wall 3 adjacent to the recess 4 are not covered.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an insert molding. [Background technology]

[0002] 2. Description of the Related Art An insert molded article having an insert member and a molded article main body is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7278925 Summary of the Invention [Problem to be solved by the invention]

[0004] The insert molded product as described above may be required to be configured such that the insert member has a top wall, a side wall, and a recess that is concave on the top surface of the top wall and the outer peripheral surface of the side wall and extends from the top surface of the top wall to the lower end of the outer peripheral surface of the side wall, and the molded product main body is filled in the recess and does not cover the portion adjacent to the recess on the top surface of the top wall, the outer peripheral surface of the side wall, and the lower end surface of the side wall. According to the above configuration, a design effect can be obtained by combining the color of the molded product main body filled in the recess on the top surface and the outer peripheral surface of the side wall and the color of the insert member including the portion adjacent to the recess on the top surface and the outer peripheral surface of the side wall. However, in this case, since the insert molded product forms a ring-shaped portion made of the insert member on the inner peripheral edge of the lower end surface of the side wall, it may not be preferable in terms of design effect when viewed from below. In addition, it is preferable that the molded product main body is difficult to peel off from the insert member.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide an insert molded product which easily achieves a good design effect when viewed from below and in which the molded product body is unlikely to peel off from the insert member. [Means for solving the problem]

[0006] One aspect of the present invention is as follows.

[0007] [1] The molded article has an insert member and a molded article body. the insert member has a top wall, a side peripheral wall depending from an outer circumferential edge of the top wall, and a recess that is concave on an upper surface of the top wall, an outer circumferential surface of the side peripheral wall, and a lower end surface of the side peripheral wall, and that extends from the top surface of the top wall through the outer circumferential surface of the side peripheral wall to an inner circumferential edge of the lower end surface of the side peripheral wall, the top wall has a gate hole portion penetrating the top wall upward to the recess, The molded product main body is an insert molded product that fills the gate hole portion and the recess, and does not cover the upper surface of the top wall, the outer peripheral surface of the side peripheral wall, and the lower end surface of the side peripheral wall adjacent to the recess.

[0008] [2] The insert member has a plurality of pairs of the gate hole portion and the recess portion, The recess is partitioned by an exposed portion of the insert member, the exposed portion is a top surface of a protrusion provided on the upper surface of the top wall, the outer circumferential surface of the side peripheral wall, and the lower end surface of the side peripheral wall, the lower surface of the upper wall has a communication recess that communicates with two or more of the gate holes, The insert molding product according to [1], wherein the molded product main body is filled into the communicating recess.

[0009] [3] A container body having a mouth and a lid for opening and closing the mouth, The lid has an outer cap made of the insert molding product according to [1] or [2], and an inner cap having a top wall and an outer peripheral wall, A container, wherein the lower end surface of the lid is composed of the lower end surface of the insert molding and the lower end surface of the inner cap. Effect of the Invention

[0010] According to the present invention, it is possible to provide an insert molded product which easily achieves a good design effect when viewed from below and in which the molded product body is not easily peeled off from the insert member. [Brief description of the drawings]

[0011] [Figure 1] 1 is a cross-sectional view showing a container having an insert molding according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a top view of the container shown in FIG. [Diagram 3] FIG. 2 is a bottom view of the container shown in FIG. [Figure 4] FIG. 2 is a side view of the lid shown in FIG. [Diagram 5] 2 is a partial cross-sectional side view of an insert member of the insert molding shown in FIG. 1. [Figure 6] FIG. 6 is a top view of the insert member shown in FIG. 5. [Figure 7] 6 is a bottom view of the insert member shown in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] As shown in Figures 1 to 7, in one embodiment of the present invention, an insert molded product 1 has an insert member 1a and a molded product main body 1b, and the insert member 1a has a top wall 2 and a side peripheral wall 3 hanging down from the outer peripheral edge of the top wall 2, and a recess 4 that is concave on the upper surface of the top wall 2, the outer peripheral surface of the side peripheral wall 3, and the lower end surface 3a of the side peripheral wall 3 and extends from the upper surface of the top wall 2 through the outer peripheral surface of the side peripheral wall 3 to the inner peripheral edge of the lower end surface 3a of the side peripheral wall 3, the top wall 2 has a gate hole 5 that penetrates the top wall 2 upward to the recess 4, and the molded product main body 1b is filled in the gate hole 5 and the recess 4, and does not cover the upper surface of the top wall 2, the outer peripheral surface of the side peripheral wall 3, and the lower end surface 3a of the side peripheral wall 3 adjacent to the recess 4.

[0014] According to the above configuration, the molded product body 1b is filled in the recess 4 extending to the inner peripheral edge of the lower end surface 3a of the side peripheral wall 3, so that an annular portion made of the insert member 1a is not formed on the inner peripheral edge of the lower end surface 3a of the side peripheral wall 3 (only the exposed portion 1a1 is visible). According to the above configuration, the molded product body 1b is filled in the gate hole portion 5 penetrating the upper wall 2 upward to the recess 4 and the recess 4 extending to the inner peripheral edge of the lower end surface 3a of the side peripheral wall 3, so that the molded product body 1b is difficult to peel off from the insert member 1a after the insert molded product 1 is formed. Therefore, it is possible to realize an insert molded product 1 in which a good design effect is easily obtained when viewed from below and the molded product body 1b is difficult to peel off from the insert member 1a. In this embodiment, the up-down direction is parallel to the central axis O of the side peripheral wall 3, the radial direction is perpendicular to the central axis O, and the circumferential direction goes around the central axis O.

[0015] The insert member 1a has a plurality of sets (three sets in this embodiment) of gate holes 5 and recesses 4, and the recesses 4 are partitioned by exposed portions 1a1 of the insert member 1a, and the exposed portions 1a1 are the top surfaces of the protrusions provided on the upper surface of the upper wall 2, the outer peripheral surface of the side peripheral wall 3, and the lower end surface 3a of the side peripheral wall 3. The lower surface of the upper wall 2 has communicating recesses 6 that communicate with two or more (three in this embodiment) gate holes 5, and the molded product main body 1b is filled into the communicating recesses 6. According to the above configuration, the molded product main body 1b is filled into the communicating recesses 6, so that the molded product main body 1b is less likely to peel off from the upper wall 2 of the insert member 1a after the formation of the insert molded product 1. In addition, when the molded product main body 1b is molded, injection is injected from one gate portion (mold), so that by providing a plurality of gate holes 5 in the communicating recesses 6, each recess 4 partitioned by the exposed portions 1a1 can be easily filled.

[0016] In this embodiment, the container 7 has a container body 7a having a mouth 8 and a lid 7b for opening and closing the mouth 8. The lid 7b has an outer cap made of an insert molded product 1 and an inner cap 9 having a top wall 9a and an outer peripheral wall 9b. The lower end surface 7b1 of the lid 7b is composed of the lower end surface 1c of the insert molded product 1 and the lower end surface 9c of the inner cap 9. According to the above configuration, by setting the color of the molded product body 1b at the lower end surface 7b1 of the lid 7b to be the same as the color of the inner cap 9, a design effect can be obtained in which the molded product body 1b at the lower end surface 7b1 of the lid 7b and the inner cap 9 have a good sense of unity. In this embodiment, the inner cap 9 is integrated with the outer cap, but this is not limited to this.

[0017] The insert member 1a has a through hole 10 that penetrates the top wall 2 and widens downward, and the molded article main body 1b is filled into the through hole 10. With the above configuration, it is possible to make it even more difficult for the molded article main body 1b to peel off from the insert member 1a. The through hole 10 is preferably an elongated hole extending along the outer periphery of the top wall 2 as shown in the figure, but is not limited to this. Also, the through hole 10 does not have to be provided.

[0018] The insert member 1a may have a vapor-deposited film on exposed portions 1a1 that are not covered by the molded article main body 1b on the upper surface of the top wall 2, the outer peripheral surface of the side peripheral wall 3, and the lower end surface 3a of the side peripheral wall 3. The vapor-deposited film may be provided not only on the exposed portions 1a1 but also on some or all of the recesses 4. According to this embodiment, even when a vapor-deposited film is provided, it is possible to make it difficult for the molded article main body 1b to peel off from the insert member 1a.

[0019] The material of the deposited film is not particularly limited and may be, for example, a metal, such as aluminum. The materials of the insert member 1a and the molded article main body 1b are not particularly limited and may be, for example, a resin.

[0020] In this embodiment, the side peripheral wall 3 of the insert member 1a is cylindrically shaped centered on the central axis O, but is not limited to this and may be configured to have a cylindrical shape other than a cylindrical shape, such as an elliptical cylindrical shape or a polygonal cylindrical shape centered on the central axis O.

[0021] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and the above-described embodiment can be modified in various ways without departing from the gist of the present invention. [Explanation of symbols]

[0022] 1 Insert molding (outer cap) 1a Insert member 1a1 Exposed part 1b Molded product body 1c Lower end surface 2 Top wall 3 Side wall 3a Lower end surface 4 Recess 5 Gate hole 6 Connecting recess 7 containers 7a Container body 7b Lid 7b1 Lower end surface 8 Mouth 9 Inner cap 9a Ceiling wall 9b Outer wall 9c Lower end surface 10 Through holes O center axis

Claims

1. The molded article has an insert member and a molded article body. the insert member has a top wall, a side peripheral wall depending from an outer circumferential edge of the top wall, and a recess that is concave on an upper surface of the top wall, an outer circumferential surface of the side peripheral wall, and a lower end surface of the side peripheral wall, and that extends from the top surface of the top wall through the outer circumferential surface of the side peripheral wall to an inner circumferential edge of the lower end surface of the side peripheral wall, the top wall has a gate hole portion penetrating the top wall upward to the recess, The molded product main body is an insert molded product that fills the gate hole portion and the recess, and does not cover the upper surface of the top wall, the outer peripheral surface of the side peripheral wall, and the lower end surface of the side peripheral wall adjacent to the recess.

2. The insert member has a plurality of pairs of the gate hole portion and the recess portion, The recess is partitioned by an exposed portion of the insert member, the exposed portion is a top surface of a protrusion provided on the upper surface of the top wall, the outer circumferential surface of the side peripheral wall, and the lower end surface of the side peripheral wall, the lower surface of the upper wall has a communication recess that communicates with two or more of the gate holes, The insert molded product according to claim 1 , wherein the molded product body is filled into the communicating recess.

3. A container body having a mouth and a lid for opening and closing the mouth, The lid has an outer cap made of the insert molding product according to claim 1 or 2, and an inner cap having a top wall and an outer peripheral wall, A container, wherein the lower end surface of the lid is composed of the lower end surface of the insert molding and the lower end surface of the inner cap.

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