| 摘要 |
PCT No. PCT/EP93/00308 Sec. 371 Date Jul. 28, 1994 Sec. 102(e) Date Jul. 28, 1994 PCT Filed Feb. 9, 1993 PCT Pub. No. WO93/16251 PCT Pub. Date Aug. 19, 1993.A float finish machine includes a rotor with a disk supporting a set of trowel blades, accommodated in corresponding radial slots, that are angularly adjustable with respect to the rotor about axes that are substantially parallel to the floor. The machine includes an engine and a speed reducer having an output shaft with a sliding collar positioned thereon. An idle spacing element, having a hub that is ensheathed by a sleeve, and that is rotatably coupled with the shaft through the sliding collar, has a diameter greater than the disk and is positioned on the shaft to freely rotate about the axis of the shaft. The sleeve operates in conjunction with a device for setting the angular position of the trowel blades. |
