Bonded body and bonding method
A technology for joining bodies and jointing parts, which is applied in the direction of connection, thin-plate connection, and connection components, etc. It can solve the problems of damage to the shaft part 2a and poor long-term reliability, and achieve the effects of ensuring positioning accuracy and avoiding stress concentration
Inactive Publication Date: 2008-04-09
NHK SPRING CO LTD
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Problems solved by technology
Therefore, when the bonded body is used for a long period of time, the shaft portion 2a in contact with the hole 3b will be damaged by cracks C, and thus there is a problem of poor long-term reliability.
Method used
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[0028] Hereinafter, embodiments of the joined body and joining method of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a bonded body of the present invention.
[0029] In the bonded body 10 , as shown in FIG. 1 , the bonding member 11 and the member to be bonded 12 are bonded by melting the fused shaft portion 11 c of the bonding member 11 and crushing the head of the fused shaft portion 11 c.
[0030] The joining member 11 is made of synthetic resin. As shown in FIG. 1, short legs 11b are provided on both sides of the main body 11a. On the upper surface of the main body 11a, a fusion shaft portion 11c (refer to FIG. 2) is provided in the center. Convex parts 11d and 11e are provided on both sides of 11c (see FIG. 2 ). The convex part 11d is formed larger in diameter than the convex part 11e, and 11 f of positioning holes are provided in the center. The protrusions 11d, 11e are set to have a length slig...
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A joint structure (10) and a joining method include a joint component (11) formed of synthetic resin having a fusible shaft (11c), and a joining component (12) having an insertion hole (12c) that is inserted with the fusible shaft. The joint component (11) and the joining component (12) are joined by applying ultrasonic vibrations to fuse the fusible shaft, which is inserted in the insertion hole. The joint component (11) and the joining component (12) each include positioning members, at least in two places, which position the joint component and the joining component when engaged with each other. The joining method includes a step of determining position of the joint component and the joining component through positioning members, while the fusible shaft is inserted in the insertion hole of the joint component and a step of positioning the joint component at a predetermined position through the positioning members. While positioning the joint component and the joining component, the joint component and the joining component are joined in such a manner that a gap is formed between the insertion hole and the fusible shaft so as to interrupt contact between the insertion hole and the fusible shaft.
Description
technical field [0001] The present invention relates to a joined body and a joining method. Background technique [0002] Conventionally, as a method of joining a member to be joined made of metal or synthetic resin to a joining member made of synthetic resin, it is known to insert a shaft portion of a pin or a protrusion provided on the joining member into the joining member. A bonded body in which the shaft portion is melted and bonded by ultrasonic vibration in a hole formed on the shaft (for example, refer to Patent Documents 1 and 2). This bonded body can easily join a member to be joined made of metal or synthetic resin to a joining member made of synthetic resin in a short time. wide advantages. [0003] Patent Document 1: JP-A-2000-127248 [0004] Patent Document 2: JP-A-2002-318386 [0005] However, in the conventional bonded body, as shown in FIG. 8 , the bonding member 2 is first placed on the placement portion 1 a forming the base jig 1 . The joining member ...
Claims
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IPC IPC(8): B29C65/08B29C65/56F16B5/04
CPCB29C65/7844B29C65/08F16B5/045B29C66/343B29C65/7808B29C65/606B29C66/006B29C66/1122B29C65/7811B29C66/8322B29C65/7814B29C66/43B29C66/21B29C66/41B29C66/472B29C66/474B29C66/742B29C66/81B29C66/81429B29C66/81431Y10T403/4949Y10T403/4933Y10T403/49B29C65/56F16B5/04
Inventor 富永润重松良平长岛征胜
Owner NHK SPRING CO LTD