| 摘要 |
PCT No. PCT/FR93/00233 Sec. 371 Date May 6, 1993 Sec. 102(e) Date May 6, 1993 PCT Filed Mar. 10, 1993 PCT Pub. No. WO93/21455 PCT Pub. Date Oct. 28, 1993.The ball and revolving plate (1) clamping device uses guide cavities each comprising a housing (7a) which determines a single position for the ball (3), and a ramp (7b) which is connected to the housing (7a) by way of a plurality of points of intersection (7c) situated on a slope discontinuity. This arrangement enables the clamping force to be optimized. |
