| 摘要 |
PROBLEM TO BE SOLVED: To improve the cushion performance.SOLUTION: In a wheel 18 of a mobile device 10, an outer ring 28 is rotatably supported by a pair of inner rings 26. When the mobile device 10 is placed on a transfer path 30, a radial entire part of a lower end part of the outer ring 28 is elastically deformed to the opposite side of the transfer path 30. Thus, an elastic force of the outer ring 28 is prevented from being diffused in an axial direction of the outer ring 28 to efficiently act on the transfer path 30 side. Therefore, cushion performance of the mobile device 10 is improved. |
