DEVICE FOR GRINDING WORN TYRES Russian patent published in 1995 - IPC

FIELD: grinding of worn tyres. SUBSTANCE: device has sharpening unit for interaction with cutting tool and additional gripping units, which are mounted onto the platform close to corresponding spindle. Drive of any spindle is made in form of pneumatic tyre with hub, mounted in align with tyre to be ground, and drive rollers for periodical contact with pneumatic tyre. Drive rollers are fixed and mounted uniformly at the same circle relatively angle of rotation of the platform. Each gripping unit is made of two units, which are mounted in align towards. Each unit is made in form of bushing. The unit has pusher, mounted inside the bushing for shift, and annular master cams. Spring-loaded rotatable levers are attached to the case. Operating surfaces of the master cams interact with the pushers. One unit is connected with the hub of pneumatic tyre. EFFECT: improved efficiency of operation. 10 dwg