To provide an inexpensive caulking structure in which troubles such as cracks hardly occur during the caulking operation.
A pressed product of a metal plate in which a shaft-shaped part 18 forms a bottomed cylindrical shape and an outwardly directed flange provided on the opening part of the bottomed cylindrical shape functions as a flange part 20 is used as a caulking component 14. In a bulging step in Fig.(e), the shaft-shaped part 18 is swollen to the outer circumferential side by the effect of oil 36 by performing compression in the axial direction while the oil 36 is filled inside the bottomed cylinder of the shaft-shaped part 18. In a caulking step in Fig.(f), the caulking component 14 is integrally assembled with a plate member 12 via an insulator 16 by further compressing the shaft-shaped part 18 in the axial direction to form a flat part 26.
COPYRIGHT: (C)2005,JPO&NCIPI
Toyohiko Eto
Shinji Hamada
Takashi Asahina
Matsushita Electric Industrial Co., Ltd
TOYOTA JIDOSHA KABUSHIKI KAISHA
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