| 摘要 |
An automatic device ( 1 ) for mounting and dismounting a tire ( 100 ) onto/from the rim ( 201 ) of a wheel ( 120 ) associated with a tire-dismounting machine ( 100 ) comprising a lower base ( 101 ) on which are associated rotating support and locking means ( 102 ) of the rim ( 201 ) of a wheel, a pole ( 103 ) extending vertically associated with said base ( 101 ), a horizontal support arm ( 104 ) associated with said pole ( 103 ), said device comprising a mobile shaft ( 2 b) that can slide vertically inside a pipe ( 2 ) supported so that it can slide horizontally on said arm ( 104 ), an articulated quadrilateral made up of a tire-dismounting tool ( 4 ), a pair of opposite connecting rods ( 13, 14 ) and a body ( 6 ) fixed to the lower end of the mobile shaft ( 2 b), and a manoeuvring lever ( 7 ) articulated with said quadrilateral and suitable for deforming it to transmit the roto-translating motion to the tool ( 4 ) that goes from a seeking configuration to an extraction configuration of the bead ( 202 ') from the rim ( 201 ). |
