Patent ID: 8910693

Claim:
A device for demounting a tire from a rim, comprising: at least one support element; an articulation pin element borne by said at least one support element; a spring shackle element having a first end and a second end articulated on said articulation pin; a demounting lever having a substantially hook-like distal end and a proximal end that can be articulated at a first articulation axis to said first end of said spring shackle element and at a second articulation axis parallel to the first articulation axis, said first and said second articulation axis being substantially parallel to said articulation pin; and an actuator borne by said at least one support element and set to act on said second articulation axis of said demounting lever in order to make said demounting lever angularly move during use around said first articulation axis and make said spring shackle element angularly move around said articulation pin, such that after the driving of said actuator in one direction, said lever is obliged to follow a first path or insertion path, while by driving said actuator in the reverse direction, said demounting lever is obliged to follow a reverse or extraction path, different from said first path; comprising elastic loading means at the articulation around said articulation pin of said second end of said spring shackle element, designed to slow the angular movement of said spring shackle element around said articulation pin with respect to its angular movement around said first axis.