| 摘要 |
The accessory (1) for tyre-changing machines, particularly for the locking of wheel rims for vehicles, comprises supporting means (2) associable in a removable way with a revolving portion (B) of gripping means of the hub of the rim on a tyre-changing machine, at least two gripping jaws (3) of the rim of a wheel associated with the supporting means (2) and moving along a reciprocal approach and away direction between a position of maximum opening, wherein the gripping jaws (3) are arranged at a preset maximum distance, and a position of minimum opening, wherein the gripping jaws (3) are arranged at a preset minimum distance, and movement means (4) associated with the supporting means (2) and with the gripping jaws (3), suitable for moving the gripping jaws (3) between the position of maximum opening and the position of minimum opening. |
