| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems in which a lid opens naturally since it becomes loose easily, when force is applied by such added effective force of vibration and shock since a screw is made of a hard material, and a battery is not be replaced by a new one when an apparatus such as a coil and a driver is not available, since the battery ends its life and hence needs to be replaced by a new one, where the screw is used to fix the lid that plays a role of fixing and protecting the battery, when replacing the battery of portable equipment requiring waterproofing by a new one. SOLUTION: Since the method for fixing a lid being fixed to a body by manual rotation by using a screw instead of a tool, the entire head part of a rotor is covered with an elastic resin for sealing the periphery of the hole of the rotor, thus simplifying the structure, reducing the number of part items, and easily obtaining waterproof effect. Also, by increasing the shape of the head part for easily rotating the rotor, resistance against external shocks can be improved and design restriction can be reduced. |
