Resin component fastener structure and molding device therefor

A fastening part, resin technology, applied in the direction of threaded fasteners, deformable fasteners, household components, etc., to prevent misassembly, improve workability, and improve fluidity

Active Publication Date: 2015-08-12
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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  • Resin component fastener structure and molding device therefor
  • Resin component fastener structure and molding device therefor
  • Resin component fastener structure and molding device therefor

Examples

Experimental program
Comparison scheme
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Embodiment

[0041] Refer to the attached Figure 1 Embodiments of the present invention will be described in detail.

[0042] figure 1 It is a figure explaining the structure of the fastening part which is one Example of this invention, It is a longitudinal cross-sectional view of the fastening part 12 provided in the resin part 10, and it is figure 2 A longitudinal sectional view of the I-I arrow in the figure. figure 2 viewed from above the axis figure 1 A top view of the vicinity of the fastening portion 12, image 3 yes figure 1 The cross-sectional view of the III-III arrow in the figure. in addition, Figure 4 is a diagram showing the sleeve 14 used in the fastening part 12 alone, and is Figure 5 The longitudinal sectional view of the part viewed from the direction of IV-IV in Figure 5 is viewed from the axial Figure 4 A top view of the bushing 14. The sleeve 14 corresponds to a cylindrical member, and is a cylindrical steel pipe in this embodiment.

[0043] In the...

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Abstract

In a fastener structure in which a cylindrical member is integrally embedded by insert-molding in a resin component and a screw member is inserted in an insertion hole provided on the inside of the cylindrical member, the present invention makes it possible to position the cylindrical member during the insert-molding easily and with high precision. Because the inner circumferential surface (14f) of a collar (14) is exposed from one end to the middle in the axial direction, when insert-molding the resin component (10), the collar (14) can be positioned from the inside using a positioning section (58) provided on a core metal (56) for molding the insertion hole (24) and can be positioned easily and with high precision without having to provide a positioning hole (124). From the middle to the other end, the inner circumferential surface (14f) is covered by an inner surface-covering resin (22). Because the insertion hole (24) is provided in the inner surface-covering resin (22) by the core metal (56), the size and shape of the insertion hole (24) can be set at will separately from the collar (14).

Description

technical field [0001] The present invention relates to a fastening part structure of a resin part, and particularly relates to a fastening part in which a cylindrical part is embedded in a resin part by insert molding, and an insertion hole is provided inside the cylindrical part through which a threaded part is inserted. Structural improvements. Background technique [0002] There is known a fastening portion structure of a resin part (refer to Patent Document 1): a cylindrical member is integrally embedded in a resin part by insert molding, and an insertion hole is provided inside the cylindrical member, and a screw thread The member is inserted into the insertion hole, and the cylindrical member is axially pressed by the screw member, whereby the resin component can be fixed to a predetermined member. Figure 12 The fastening part 100 is an example, and a cylindrical sleeve 104 is integrally embedded in the resin part 102 as a cylindrical member by insert molding. A plu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14F16B5/02
CPCF16B5/025B29C2045/1668B29C45/1671F16B19/02B29L2031/7278B29C45/14008F16B5/02B29C45/14311B29C45/14336B29C45/14065B29L2009/00F16B29/00
Inventor 都筑弘明柳谷有范
Owner TOYODA IRON WORKS CO LTD
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