Abstract: Brackets 9, 9 for supporting respective opposite ends of a guide rod 4 are provided with respective cam faces 95, 95 approximately symmetric about an approximate longitudinal midportion C of the guide rod 4, and at least one of the brackets 9 is provided with an adjusting member for moving the guide rod 4 longitudinally thereof. The cam faces 9 guide the guide rod 4 toward a direction in which the guide rod 4 pivotally moves about the approximate longitudinal midportion C, as the guide rod 4 is moved longitudinally thereof by the adjusting member.

Abstract: A guide shaft support mechanism for supporting a guide shaft on a base includes first and second parts supporting first and second ends of the guide shaft, respectively, and a third part connecting said first and second parts. The first through third parts are formed integrally with one another. The guide shaft guides a moving body in a given direction.