| 摘要 |
PCT No. PCT/NL92/00142 Sec. 371 Date May 5, 1994 Sec. 102(e) Date May 5, 1994 PCT Filed Aug. 11, 1992 PCT Pub. No. WO93/09538 PCT Pub. Date May 13, 1993.A device for gripping and handling objects with a hole, such as compact discs, comprises a hollow carrier to be placed against the object at the hole, which carrier has an extremity directed toward the object which extremity is internally provided with at least two gripping fingers, which can be displaced relative to each other in radial direction of the hole to be engaged, in order to grip a peripheral edge of the hole with outwardly directed barbs at free extremities of the fingers and which can be displaced in axial direction to move the fingers out of the extremity of the carrier. The fingers are controlled by cooperating cams on both the carrier and fingers. These cams are fixedly connected to the carrier and the finger respectively and have such a shape that during the first part of displacement of the fingers from the extremity, the barbs define a first radius and during a second part of the displacement, the barbs define a second radius smaller than the first radius. The cams on the carrier are located within the carrier and the cams on the gripping fingers are located on radially outer surfaces of the gripping fingers. A spring continuously urges the fingers to a position in which the barbs of the fingers define the first radius. |
