Component mount structure

Abstract

To provide a component mount structure that is improved in component holding power of a fixture.SOLUTION: A component mount structure includes: a component; and a fixture 10 for mounting a component to a mount member. The fixture 10 includes: a fixing part 14 for being fixed to a mount member; a flange part 12 connected to the fixing part 14; and a shaft part 16 erecting from the flange part 12. A cavity part 20 penetrating the shaft part 16 in a direction intersecting the erecting direction of the shaft part 16 is formed. The component is insert-molded so as to cover the shaft part 16. The component includes a connection part that is provided so as to penetrate and embed the cavity part 20.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a component mounting structure for mounting a component to a mounting member by means of a mounting fixture. [Background technology]

[0002] Patent Document 1 discloses an impact energy absorbing material comprising an impact energy absorbing material body and a clip for attaching the impact energy absorbing material body to a vehicle body sheet metal. The clip comprises a flange arranged along the bottom surface of the impact energy absorbing material body, a shaft part protruding from the flange towards the impact energy absorbing material body, an anchor expanding from the tip of the shaft part and embedded in the impact energy absorbing material body, and a notch part provided in the anchor. The impact energy absorbing material body is a foamed synthetic resin molding and is molded integrally with the clip. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-122686 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the technique disclosed in Patent Document 1, the impact energy absorbing material body is integrated with the clip simply by covering the shaft portion and anchor of the clip, so there is a risk that the connecting force with the clip is insufficient.

[0005] An object of the present invention is to provide a component mounting structure in which the force with which a mounting fixture can hold a component is improved. [Means for solving the problem]

[0006] In order to solve the above problems, a component mounting structure according to one aspect of the present invention includes a component and a mounting fixture for mounting the component to a mounting member. The mounting fixture includes a fixing portion for fixing the component to the mounting member, a flange portion connected to the fixing portion, and a shaft portion erected from the flange portion. A void portion is formed in the shaft portion, penetrating the component in a direction intersecting the erect direction of the shaft portion. The component is insert molded to cover the shaft portion, and the component has a connecting portion provided to fill the void portion so as to penetrate the void portion. Effect of the Invention

[0007] According to the present invention, it is possible to provide a component mounting structure in which the holding force of a mounting fixture for a component is improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view of the mounting fixture of the embodiment. [Diagram 2] FIG. 2 is a front view of the mounting fixture according to the embodiment. [Diagram 3] FIG. 2 is a cross-sectional view of the component mounting structure according to the embodiment. [Figure 4] FIG. 4(a) is a front view of a mounting fixture of a first modified example, and FIG. 4(b) is a front view of a mounting fixture of a second modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] FIG. 1 is a perspective view of a mounting tool 10 according to an embodiment. FIG. 2 is a front view of the mounting tool 10 according to an embodiment. The mounting tool 10 is used to mount a part to a mounting member. The part will be described later, and may be made of, for example, a foam material that has a blocking function for blocking an opening, or a rubber material that has a cushioning function. The mounting tool 10 is fixed to a mounting hole formed in the mounting member. The mounting member may be, for example, a vehicle body panel, an interior panel, or a door.

[0010] The mounting device 10 includes a flange portion 12, a fixing portion 14, and a head portion 26. The head portion 26 has a shaft portion 16, a protruding portion 18, and a gap portion 20. The fixing portion 14 has a body portion 22 and an elastic claw 24. The flange portion 12 is formed in a disk shape.

[0011] The fixing portion 14 is connected to the flange portion 12 and fixed to the mounting member. The body portion 22 extends downward from the flange portion 12. A pair of elastic claws 24 are formed to face each other across the body portion 22, and extend from the lower end of the body portion 22 toward the flange portion 12. The pair of elastic claws 24 are flexible so as to move toward or away from each other. A tapered locking surface that locks into the mounting hole is formed at the tip of the elastic claw 24. Note that the fixing portion 14 is not limited to a form having elastic claws as long as it is fixed to the mounting member, and may be, for example, locked to a bolt formed in the mounting member or fixed to the mounting member.

[0012] The shaft portion 16 of the head portion 26 is formed in a cylindrical shape and stands upright from the flange portion 12. A cavity portion 20 is formed in the shaft portion 16. The cavity portion 20 penetrates in a direction intersecting the standing direction of the shaft portion 16, and more preferably in a direction perpendicular to the standing direction of the shaft portion 16.

[0013] The protruding portion 18 protrudes radially outward from the shaft portion 16, and has an outer shape formed in a circular ring shape. As shown in Fig. 1, a plurality of protruding portions 18 are formed at intervals in the erection direction, and are provided so as to face the flange portion 12. The shaft portion 16 is connected at the position where the protruding portion 18 is formed, thereby ensuring the rigidity of the shaft portion 16. Although three protruding portions 18 are formed in Fig. 1, the number may be two or less, or may be absent.

[0014] The gaps 20 are formed between a pair of opposing overhanging portions 18 and between the flange portion 12 and the overhanging portion 18, respectively, and are arranged side by side in the erection direction. The gaps 20 penetrate in a direction perpendicular to the opposing direction of the pair of elastic claws 24. The gaps 20 are formed in a cylindrical shape, but may be formed in a square tube shape. In addition, the cross section of the gaps 20 is not limited to a perfect circle, and may be an ellipse, an elongated hole, or a polygon.

[0015] If the gap 20 becomes too small, it becomes difficult to fill the gap 20 with parts, and if the gap 20 becomes too large, the rigidity of the multiple shaft portions 16 becomes too low. Therefore, the radial width D1 of the outer periphery of the shaft portion 16 is set in the range of two or more times and three or less times the diameter D2 of the gap 20. This makes it possible to ensure the size of the gap 20 and the rigidity of the shaft portion 16.

[0016] 3 is a cross-sectional view of a component mounting structure 1 of an embodiment. The component mounting structure 1 includes a mounting fixture 10 and a component 28. The component mounting structure 1 is formed by insert molding, in which a head 26 of the mounting fixture 10 is inserted into a mold and the mold is filled with the material of the component 28. As a result, the shaft portion 16 is covered with the component 28, the cavity portion 20 is filled with the material of the component 28, and a connecting portion 28a of the component 28 is formed into a columnar shape.

[0017] For example, the outer shape of the part 28 is formed into a cylindrical or polygonal column shape. The part 28 is provided to cover the shaft portion 16 and the protruding portion 18 of the head portion 26 and to fill the gap portion 20 so as to penetrate the gap portion 20. The part 28 is formed so as not to expose the head portion 26. As shown in FIG. 3, the part 28 is filled in the gap portion 20 to form a columnar portion in the gap portion 20. In this way, by providing the gap portion 20 penetrating the shaft portion 16 and filling the gap portion 20 with the material of the part 28, the holding force of the part 28 can be improved with a simple configuration and at low cost. In addition, the rotation of the part 28 around the axis relative to the fixture 10 can be restricted.

[0018] Since a plurality of voids 20 are formed, even if the connecting portion 28a of the component 28 breaks in any of the voids 20, the holding state can be maintained because the connecting portion 28a is connected in the remaining voids 20. In addition, since a plurality of voids 20 are formed, the contact area with the component 28 can be increased.

[0019] The plurality of gaps 20 are arranged side by side along the erection direction of the shaft portions 16. This allows the shaft portions 16 to be connected, and the rigidity can be increased even if the erection height of the shaft portions 16 is increased.

[0020] Since the gap 20 penetrates in a direction perpendicular to the opposing direction of the pair of elastic claws 24, it is easy to remove from the mold during molding, and the manufacturing cost can be reduced.

[0021] Part 28 is formed from a foam material and is filled into cavity 20. Because it is a foam material, it is easy to fill cavity 20. In addition, although foam material is a material that easily breaks, by filling multiple cavities 20 with it, the holding force to mounting tool 10 can be improved.

[0022] The height H1 of the head portion 26 may be greater than half the height H2 of the component 28. By making the head portion 26 sufficiently tall, the component 28 can be firmly supported.

[0023] Fig. 4(a) is a front view of a mounting fixture 100 of a first modified example, and Fig. 4(b) is a front view of a mounting fixture 200 of a second modified example. The mounting fixtures shown in Fig. 4(a) and Fig. 4(b) hold components 28 to constitute component mounting structure 1, and the configuration of fixing portion 14 is omitted.

[0024] The mounting tool 100 of the first modified example shown in Fig. 4(a) has a head 126 that has a different shape than the mounting tool 10 shown in Fig. 2. The head 126 of the mounting tool 100 has a shaft portion 116, a protruding portion 118, a gap portion 120, and a connection portion 30.

[0025] The shaft portion 116 of the head portion 126 is formed in a cylindrical shape and stands upright from the flange portion 12. The protruding portion 118 protrudes radially outward from the tip end of the shaft portion 116 and faces the flange portion 12.

[0026] A cavity 120 is formed in the shaft portion 116. The cavity 120 penetrates in a direction perpendicular to the erection direction of the shaft portion 116. A plurality of cavity portions 120 are formed between the flange portion 12 and the protruding portion 118, and are arranged side by side in the erection direction. The cross section of the cavity 120 is formed in an elongated hole shape. By forming the cavity 120 in an elongated hole shape with a long diameter in the erection direction, it is possible to increase the cross-sectional area of ​​the cavity 120 while ensuring the radial thickness of the shaft portion 116, and suppress a decrease in rigidity.

[0027] A mounting tool 200 of a second modified example shown in Fig. 4(b) has a different shape of a head portion 226 compared to the mounting tool 10 shown in Fig. 2. The head portion 226 has a shaft portion 216, a protruding portion 218, and a gap portion 220. The shaft portion 216 has a first pillar portion 216a, a second pillar portion 216b, and a third pillar portion 216c. The shaft portion 216 of the second modified example is composed of three pillar portions, whereas the shaft portion 16 shown in Fig. 1 is composed of a single pillar portion.

[0028] The first pillar portion 216a, the second pillar portion 216b, and the third pillar portion 216c stand in parallel from the flange portion 12. The tips of the multiple pillar portions 216a, 216b, and 216c are connected to the overhanging portion 218.

[0029] A gap 220 is formed between the first columnar portion 216a and the second columnar portion 216b, and between the second columnar portion 216b and the third columnar portion 216c. The gap 220 penetrates in a direction perpendicular to the erection direction of the columnar portions 216a, 216b, and 216c. The gap 220 is formed from the flange portion 12 to the protruding portion 218. The first columnar portion 216a and the second columnar portion 216b, and the second columnar portion 216b and the third columnar portion 216c may be connected in the middle. Also, there may be only a pair of columnar portions 216a, 216b, and 216c, and there may be only one gap 220.

[0030] The present invention is not limited to the above-described embodiments, and various modifications such as design changes may be made to each embodiment based on the knowledge of those skilled in the art, and such modified embodiments may also be included within the scope of the present invention. [Explanation of symbols]

[0031] 1 part mounting structure, 10 mounting fixture, 12 flange portion, 14 fixing portion, 16 shaft portion, 18 extension portion, 20 gap portion, 22 body portion, 24 elastic claw, 26 head portion, 28 part, 28a connecting portion, 30 connection portion.

Claims

1. Parts and A mounting tool for mounting the component to a mounting member, The mounting fixture includes: A fixing portion that is fixed to the mounting member; A flange portion connected to the fixing portion; A shaft portion extending from the flange portion, A gap is formed in the shaft portion so as to penetrate in a direction intersecting with the vertical direction of the shaft portion, The part is insert molded to cover the shaft portion, The component mounting structure is characterized in that the component has a connecting portion that penetrates and fills the gap.

2. The component mounting structure according to claim 1 , wherein a plurality of the gaps are formed.

3. The component mounting structure according to claim 2 , wherein the gaps are arranged side by side in the vertical direction.

4. The fixing portion has a pair of elastic claws that are opposed to each other and can be deflected so as to approach or move away from each other, 3. The component mounting structure according to claim 1, wherein the gap extends in a direction perpendicular to a direction in which the pair of elastic claws face each other.

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