| 摘要 |
PROBLEM TO BE SOLVED: To provide a through anchor capable of preventing cracks from occur ring in a resin molded portion by dispersing residual stress caused by a heat shrink. SOLUTION: This through anchor 10 comprises a metal plate 12 and a resin molded portion 14 covering a periphery 23 thereof. Generally, residual stress caused by a heat shrink generated between the resin molded portion 14 and the metal plate 12 is high in the vicinity of the both ends in the boundary between the resin molded portion 14 and the metal plate 12 exposed therefrom. A notch 22 is formed in this position to expose one part of the periphery 23 of the metal plate 12 covered with the resin molded portion 14. Although the resin molded portion 14 thermally shrinks after molding of an insert, the shrink of the resin molded portion 14 is not subject to interference with the periphery 23 of the metal plate 12, since the periphery 23 of the metal plate 12 is exposed. As a result, cracks in the resin molded portion 14 at this portion can be prevented. |
