PURPOSE: To increase a transmission gear ratio and make reverse rotation possible by keeping the peripheral edges of input and output side discs in contact with the external surface of a sphere supported on a rotating shaft, changing the latitude of contact, depending upon the inclination of the rotating shaft and further changing the speeds of input and output shafts.
CONSTITUTION: The torque of an input shaft 1 is transmitted from a rotary disc 2 to a sphere 10 at a contact point A. Also, when the turning shaft 9 of the sphere 10 is vertical, the peripheral speed of a contact point B between the sphere 10 and a rotary disc 4 is constant in a direction opposite to the pint A, and the torque of the disc 4 is transmitted to an output shaft 3. When a shift lever 19 is turned forward, the shaft 9 is inclined backward, and the contact point A between the disc 2 and the sphere 10 moves in a direction toward the higher latitude of the sphere 10, while the contact point B between the disc 4 and the sphere 10 moves in a direction toward the lower latitude, thereby increasing the speed of the disc 4. Also, when the shift lever 19 is turned backward until the contact point B is aligned with the axial center of the shaft 9, the peripheral length of the contact point A becomes maximum and the peripheral length of the contact point B becomes zero, thereby stopping the output shaft 3. When the shift lever 19 is further turned backward, the contact pints A and B come to be positioned at the same hemispherical side, and rotation reversed. The speed of this reverse rotation increases, when shift lever 19 is further turned.
TAKEDA HIROMICHI
SAKAI KATSUMI
OTA KATSUYUKI
