Fastening part structure and molding device of resin parts

A technology of fastening parts and resins, applied to threaded fasteners, deformable fasteners, household components, etc., to achieve the effect of improving workability, improving fluidity, and preventing misassembly

Active Publication Date: 2018-01-30
TOYODA IRON WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the positioning hole 124 is deepened, the posture of the sleeve 104 is stabilized, but there is another problem that the sleeve 104 protrudes from the resin part 102 by the depth of the positioning hole 124.

Method used

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  • Fastening part structure and molding device of resin parts
  • Fastening part structure and molding device of resin parts
  • Fastening part structure and molding device of resin parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] Refer to the attachment below Figure one The embodiments of the present invention will be described in detail.

[0042] figure 1 It is a diagram explaining the structure of the fastening portion as an embodiment of the present invention, and is a longitudinal cross-sectional view of the fastening portion 12 provided in the resin part 10, which is figure 2 A vertical cross-sectional view of the I-I arrowed part in. figure 2 Is viewed from above the axis figure 1 A plan view of the vicinity of the fastening portion 12, image 3 Yes figure 1 The cross-sectional view of the part in the direction of III-III. In addition, Figure 4 Is a diagram separately showing the sleeve 14 used in the fastening portion 12, Figure 5 The longitudinal section view of the IV-IV direction part in Figure 5 From the axial view Figure 4 A top view of the casing 14. The sleeve 14 corresponds to a cylindrical member, and in this embodiment is a cylindrical steel pipe.

[0043] In the aforement...

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Abstract

A fastening portion structure in which a cylindrical member is integrally embedded in a resin part by insert molding, and a threaded member is inserted into an insertion hole provided inside the cylindrical member, enabling high Accurate and easy positioning of cylindrical parts during insert molding. The inner peripheral surface 14f is exposed from one axial end to the middle part of the sleeve 14, so that when the resin part 10 is insert-molded, the positioning part 58 provided on the mandrel 56 for forming the insertion hole 24 can be inserted from the The sleeve 14 is positioned inside, and the provision of the positioning hole 124 also enables easy positioning with high precision. From the middle part to the other end, the inner peripheral surface 14f is covered with the inner surface covering resin 22, and the insertion hole 24 is provided in the inner surface covering resin 22 through the mandrel 56, so the insertion can be independently and arbitrarily set with respect to the sleeve 14. The size and / or shape of the hole 24.

Description

Technical field [0001] The present invention relates to a fastening portion structure of a resin part, and more particularly to a fastening portion in which a cylindrical member is embedded in the resin part by insert molding, and an insertion hole is provided on the inner side of the cylindrical member to allow a threaded member to penetrate therethrough Structural improvement. Background technique [0002] Known is a structure of a fastening portion of a resin part (see Patent Document 1): a cylindrical member is integrally embedded in the resin part by insert molding, and an insertion hole and a screw are provided inside the cylindrical member The component is inserted into the insertion hole, and the cylindrical component is clamped by the screw component from the axial direction, whereby the resin component can be fixed to a predetermined component. Picture 12 The fastening portion 100 of is an example, and a cylindrical sleeve 104 is integrally embedded in the resin part 10...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14F16B5/02
CPCB29C45/14008F16B5/02F16B5/025F16B19/02B29C45/14311B29C45/14336B29L2031/7278B29C45/14065B29L2009/00F16B29/00
Inventor 都筑弘明柳谷有范
Owner TOYODA IRON WORKS CO LTD
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