| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a steering bushing capable of maintaining preferable vibration absorbing performance even when receiving steering force applied thereto owing to a smaller axial spring constant and a larger torsional spring constant of a level still ensuring advantages as a bushing for compatibility between the vibration absorbing performance and the steering stability. SOLUTION: A steering bushing comprises a middle tube 3 with a smaller size in axial length than an inner tube 1 and an outer tube 2 for coaxial arrangement between the inner and outer tubes 1 and 2, and rubber bushings 4b and 4c fixedly pressed into the space at least between the outer periphery of the middle tube 3 and the inner periphery of the outer tube 2 and between the outer periphery of the inner tube 1 and the inner periphery of the outer tube 2 at the axial position where no middle tube 3 is present. The middle tube 3 and the inner tube 1 are opposed to each other near at their respective inner periphery and outer periphery at a roughly constant interval that allows their relative axial displacement over the full circumference, and are shaped to have a cross-sectional outline with no complete roundness for restricting their relative circumferential displacement.</p> |
