| 摘要 |
A group for assembling, disassembling and bead releasing of a tire ( 2 ) onto and from a wheel-rim ( 3 ) supported mounted for rotation about an axis and having at least a carriage or slid ( 4 ) displaceably mounted on guides ( 5 ) extending parallel to the axis of rotation of the wheel-rim ( 3 ), an arm or upright ( 6 ) extending in a transverse direction with respect to the said axis of rotation and having one end thereof supported by the slide or carriage ( 4 ) and its other end provided with a bead releasing tool ( 7, 8 ) that can be arranged so as to have its working front or edge ( 107, 108 ) facing towards the same side. First driving means ( 9 ), designed to cause the arm ( 6 ) to rotate about a longitudinal axis (x-x) for positioning the bead releasing disk ( 7 ) and the tool ( 8 ) with respect to the sides of the tire ( 2 ), and second driving means ( 10 ), designed to effect the rotation of the said arm ( 6 ) about at least one axis (y-y) extending transversely with respect to said longitudinal axis, are also provided, thereby lifting or lowering, upon control, the bead releasing disk ( 7 ) and the tool ( 8 ) with respect to the displacement of the slide or carriage ( 4 ) along the guides ( 5 ) for overtaking the wheel-rim ( 3 ) or tire ( 2 ).
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