| 摘要 |
PROBLEM TO BE SOLVED: To suppress the generation of abnormal sound by rattling during rotation and to elongate the life of the structure by preventing the abrasion of a contact face. SOLUTION: This power transmission structure 102 is formed by provided with a cylindrical member (spline coupling 116) with an axial engagement groove 116a recessed in the internal circumferential face and axial members (first axial member 118 and second axial member 120) engaged with the engagement groove 116a by a plurality of axial projections 118a, 120a projecting from its outer circumferential face, and transmits the rotation power with circumferential play allowed thereto. This structure is also provided with a magnetic field generation part (permanent magnet 150) generating a magnetic field on the contact face between the projections 118a, 120a and the engagement groove 116a so that a circumferential attractive force acts on the interval between the projections 118a, 120a and the engagement groove 116a. |
