| 摘要 |
PROBLEM TO BE SOLVED: To surely stabilize the connection of a hinge part of a frame earth between housings especially at the time of turning the hinge part. SOLUTION: The hinge part 20 is constituted of a bearing part 2 and a metallic part 3 to be mounted to the part 2, a metallic part 7 to be mounted to the bearing part 6, a spring 8, a special washer 90, a shaft pin 10 put through 7, 8 and 90, and a washer 4 screwed to the screw part of 10 for stopping pulling- out. The spring 91 of the special washer 9 is engaged with the groove 72 of the part 7 and the spring 91 slides inside of the part 6 by axial movement generated with turning. Each surface of the housings 1, 5 and the baring parts 2 and 6 is conductively worked to make frame earth. Frame earth between the housings 1 and 5 is stably secured also at the time of turning by the pressure of the spring 91. |
