CASING FOR PORTABLE DEVICE

摘要

A box-shaped metal structure is formed by press-working or the like, and a resin shell is integrally molded to the periphery of the metal structure by extrusion molding a resin. A flexible circuit board for key switches is disposed on a switch-receiving surface of the metal structure. The resin shell and the box-shaped metal structure are not bonded together, but the resin fills the connecting holes in the metal structure, whereby the shell and the metal structure are kept together after molding. A casing for a portable device having a structure suitable for obtaining reduced thickness and size reduction is thereby obtained.

主权项

1. A casing for a portable device, comprising:
an internal metal structure having a first bottomed concave shape; and a metal shell that has a frame shape and that is formed by an integral molding of an external material that has greater thermal shrinkage during cooling than a constituent material of the internal metal structure, in an outside region of the internal metal structure and in an inside region connected thereto.