| 摘要 |
<p>The bead breaking unit (1) for tyre changing machines (A) comprises one arm (2) associated rotatable with a supporting structure (3), a bead breaking tool (4) associated with the arm (2) and movement means (5) associated with the arm (2) and suitable for moving the arm (2) from a disengagement position, wherein the bead breaking tool (4) is substantially moved away from the tyre (B) of a wheel (D) to undergo bead breaking, to an operating position, wherein the bead breaking tool (4) is engaged on the tyre (B). The arm (2) comprises adjustment means (9) for adjusting the position of the bead breaking tool (4) along a near/away direction to/from the wheel (D), suitable for adjusting the position of the bead breaking tool (4) when the arm (2) is in the disengagement position, depending on the sizes and/or type of the wheel (D).</p> |
