| 摘要 |
PROBLEM TO BE SOLVED: To provide a satisfactory contact of a sliding surface, or to prevent partial contact of the sliding surface to have a uniform contact of whole the surface, and to provide structure allowing easy assembling of a spherical body by locally improving a composition of a member. SOLUTION: A gib structure using the spherical body is used, and a holder for the spherical body or a cap covering the spherical body is provided. COPYRIGHT: (C)2004,JPO
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