PURPOSE: To make a moving sense alterable without altering both sides of a belt material, by disposing plural guide rotors on each of plural spiral curves running along a virtual conical surface after letting them have a specific inclination, while forming a moving passage for the belt material by the enveloping surface of each rotor.
CONSTITUTION: On plural spiral curves 2 running along a virtual conical surface 1, plural guide rotors 4 are rotatably disposed around the shaft that gets an inclination θ to the axis perpendicular to each of these spiral curves 2, while a conical surface made up by each enveloping surface of these rotors 4 is set down to a moving passage for a belt material 5. With this device, not only a moving sense can be altered without altering both sides of the belt material but also the tendency of selfalignment is given to the belt material, thus obviating its snake motion.
HASHIMOTO KAZUYOSHI
NAKANO TSUNEO
FUKUYAMA GOROU
