TIRE GROOVING APPARATUS.

摘要

A tire grooving apparatus according to the present invention consists at least of a laterally movable carriage (3) extending in parallel with a tire support shaft (21), a vertically movable block (32) provided on the carriage (3) and adapted to be moved freely in the vertical direction, and a pivotable arm (4) provided on the block (32) and having a cutter support unit (5) at the free end portion thereof, and is characterized in that the cutter support unit (5) can be moved up and down independently. In the tire grooving apparatus according to the present invention, since the cutter support unit (5) which can be moved up and down independently is attached to the free end portion of the pivotable arm (4), the depth of a tread pattern groove can be regulated and a cutting position of a cutter (6) set arbitrarily, without replacing the cutter (6), without moving the block (32) vertically and without need of a program for correcting the quantity of movement of the cutter.