| 摘要 |
PURPOSE:To prevent the damage of a casing, to relax the shock onto an internal component and to suppress the increase in the weight by providing a deformation preventing member on a space between the casing and the internal component. CONSTITUTION:The deformation preventing member 6 is provided on a space formed among a lower casing 1, an upper casing 2 and an internal component 3 without causing a gap, and the casings 1, 2, the member 6 and the component 3 are integrated. Even when an external stress is loaded to a telephone set, the casings are not deformed by the integration in such a manner, and even when the shock is exerted to the portable telephone set due to fallen-down or the like, the shock is relaxed and the damage to the casing is prevented and the influence of the shock onto the component 3 is reduced. Furthermore, the member 6 is preferably a rubber material, or a composite material of a rubber and foaming particles, or a forming material, and when the member 6 includes air bubbles or made of the foaming material, the specific gravity is reduced and the increase in the weight is small. |
