| 摘要 |
A guide rail ( 21 ) having a guide surface for guiding sliding movement of a movable body ( 5 ) is monolithically formed on a base ( 2 ) of a measuring machine ( 1 ). A coating film for rust prevention is formed on the guide surface. With this feature, it is not necessary to attach the guide rail ( 21 ) as a discrete member to the base ( 2 ), so that a number of steps in the manufacture process and the production cost can be reduced. Further as the base ( 2 ) and the guide rail ( 21 ) are made of the same material, the bimetal effect does not occur, which insures the stability of the base ( 2 ) against changes due to aging.
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