A DE-BEADING DEVICE FOR TIRE-CHANGING MACHINES

摘要

A debeading device for tire changing machines includes a swing arm having a hinging end hinged to a base of a tire changing machine and swinging in a swing plane between an active debeading position toward the base and an inactive position away from the base; a debeading tool supported at a free end of the arm, opposite to the hinging end; an actuator for reciprocatingly rotating the arm between the active and inactive positions, which includes an externally screw-threaded member supported by the base and rotatably actuated by a motor and screwingly/unscrewingly engaged in a matingly threaded hollow member associated with the arm.

主权项

1. A de-beading device for tire-changing machines (1) comprising:
one swinging arm (11) having a hinging end (11A) hinged to a base (2) of a tire-changing machine (1) and swinging in a swinging plane between an active de-beading position toward the base (2) and an inactive position away from the base (2); a de-beading tool (14) which is held at one free end (11B) of said arm (11) opposing said hinging end (11A); and an actuator to rotate said arm alternatively between said active and said inactive positions; wherein said actuator comprises a threaded member (18) held by said base (2) and having an outer thread, and being rotatably actuated by a motor and screwingly/unscrewingly engaged in a counter-threaded hollow member (20) coupled to said arm (11) and having a counter thread.