| 摘要 |
PCT No. PCT/JP88/00896 Sec. 371 Date Mar. 22, 1990 Sec. 102(e) Date Mar. 22, 1990 PCT Filed Sep. 5, 1988 PCT Pub. No. WO90/02622 PCT Pub. Date Mar. 22, 1990.A device for preventing deflection of an elongated workpiece rotating about its longitudinal axis is provided with a contact ring (9) that is rotatably mounted about a support shaft (12) perpendicular to the axis of rotation of the contact ring (9). The angle of inclination of the rotational axis of the contact ring (9) is variable relative to the rotational axis of the elongated workpiece (M) inserted throught the ring (9), by rotating the housing (6) about the support shaft (12). The periphery of the workpiece (M) is supported by the inner periphery of the contact ring (9) at two points, i.e., at axial ends of the contact ring. Thus, elongated workpieces of different diameters can be supported by varying the inclination angle of the axis of the contact ring (9) relative to the workpiece (M).
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