| 摘要 |
PROBLEM TO BE SOLVED: To change initial torque with a small space by conducting energization with a pair of pressure sleeves by means of a pressurization spring to bring a pair of pinion gear backs into sliding contact with a differential case, forming a cam part on pressure sleeve opposition surfaces. SOLUTION: Backs 3c, 4C of pinion gears 3, 4 of 8 pinion spindle 2 are formed into spherical surfaces, and in order to come into contact with a differential case spherical surface 1C, energization is carried out with the pressure sleeves 7A, 7B of the pinion spindle 2 by means of a pressurization spring 8. Also, a mountain-like cam part 7 is formed on the opposition surfaces of the sleeves 7A, 7B. At a differential moving time, the pinion gears 5, 4 revolve on a side gear while rotating in the opposite direction, so the sleeves 7A, 7B intend to rotate relatively in the opposite direction, and at the cam part 7C, vertical force is generated on the cam part slopes according to relative rotation force, and torque and thrust force are changed pertinently according to the relative rotation force. Accordingly, initial torque can be changed without requiring a space.
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