| 摘要 |
PURPOSE:To obtain such a rubber bush that absorbs vibration in axial direction resists against deformation in the radial direction, and excels in fatigue life against vibration by orienting short fibers in the radial direction in the central part of a rubber member and in the axial direction in inner and outer layer. CONSTITUTION:A cylindrical rubber bush 1 is provided with a rubber member 5 which is composed of mixed short fibers 4 interposed between a cylindrical metal inner cylinder 2 and an outer cylinder 3 and constituted in such a way as possessing such characteristics that spring constant is high in the radial direction and low in the axial direction. The short fibers 4 are oriented in the radial direction in a central part 5a in the radial direction of the rubber member 5 and in the axial direction in an inner layer 5b and an outer layer 5c which are fixed to an inner cylinder 2 and an outer cylinder 3 respectively. The inner layer 5b and outer layer 5c are arranged in the range of about 1 to 30% of thickness in the radial direction of the rubber member 5 from the faces fixed to the inner cylinder 2 and the outer cylinder 3, and the outer part is considered the central part 5a. |
