| 摘要 |
PROBLEM TO BE SOLVED: To improve workability in a suspension mechanism and a clutch mechanism of a motorcycle and a valve gear mechanism of an internal combustion engine by reducing friction generated between a spring seat surface and a structural member or the like when bending and stretching a coil spring, regarding a technology for reducing the friction (the friction on the spring seat surface) caused by twisting with bending and stretching the coil spring used for a suspension of the motorcycle or an automobile, the clutch mechanism of the motorcycle, and the valve gear mechanism of the internal combustion engine.SOLUTION: A bearing holding mechanism is installed for absorbing a rotational force (twisting) of a spring by integrating a thrust bearing between a spring seat surface and a structural member or the like in both ends or one end of a coil spring or by integrating the thrust bearing into a metal or resin case. Therefore, a rotational force (twisting) generated in bending and stretching the spring is absorbed, and friction generated between the spring seat surface and the structural member or the like is reduced. |
