| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized and light-weight annular spring easily absorbs an impact and making error deviation of a center axis small.SOLUTION: On the inner peripheral surface of an outer peripheral member 10, formed is a recess part 11 into which a pipe spring 30 is fitted. On the outer peripheral surface of an inner peripheral member 20 arranged in a relatively rotatable manner coaxially with the outer peripheral surface 10 on the inner peripheral side of the outer peripheral member 10, formed is a cam surface 21 that contacts with the pipe spring 30, and projects toward a radial direction as separating from a contact point with the pipe spring 30 in an unloaded condition to a circumferential direction of the outer peripheral member 10.SELECTED DRAWING: Figure 3 |
