| 摘要 |
PROBLEM TO BE SOLVED: To provide an insulator for a bushing, whose durability can be improved. SOLUTION: The insulator for a bushing is composed by plurally bonding insulator bodies equipped with a center hole for inserting a bolt for connecting the bushing to a bushing bracket, and a plurality of operation holes having different shapes and point symmetrical with respect to the center hole. The insulator bodies includes first, second and third insulator bodies 10, 20, 30, the operation hole is composed of first, second and third operation holes 11, 21, 31 of the first, second and third insulator bodies 10, 20, 30, and both ends 13, 23 are formed like projecting arcs, piercing each insulator body 10, 20, 30, and disposed point symmetrically with respect to the center of the center hole 3 in positions with a certain interval from the center of the center hole 3 toward an outer circumference face of each insulator body 10, 20, 30. COPYRIGHT: (C)2010,JPO&INPIT |
