Tire changing machine

Details Tire changing machine Tire changing machine

B - Operations, Transporting

60

C

157/4

B60C 25/08 (1980.01)

Patent

CA 1121712

ABSTRACT OF THE DISCLOSURE A tire-changing machine includes a framework supporting a wheel rim receiving platform adapted to receive and secure a wheel rim thereon. A bead breaker mechanism includes a bead breaker shoe, and the shoe is operatively connected to a bead breaker drive lever so that the bead of a tire mounted on the rim may be engaged by the shoe and broken away from the rim. A bead breaker shoe support arm has the shoe fastened to one end thereof, and a bead breaker column lock member has a channel therethrough in which the shoe support arm is slidably engaged, so that the support arm is adjustable in lateral position to bring the shoe to overlie the tire bead. A bead breaker support column provides a mount for the column lock member and is pivotally connected to the bead breaker drive lever at one end, so that a force component applied to the shoe in a direction parallel to the support column causes a friction force between the lock member and the shoe support arm sufficient to arrest motion of the shoe support arm in the channel.

377968

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