| 摘要 |
PROBLEM TO BE SOLVED: To reduce friction so that desired pressing force can be acted from a pressing roller to a disc.SOLUTION: A multi-disc transmission includes an input shaft 10, an output shaft 14, a disc 12, a pair of pressing rollers 40, a gear change actuator 33 for moving the pair of pressing rollers 40, clamp arms 67, 68 supported by an arm shaft 65, and applying pressing force to the pair of pressing rollers 40 to press the pressing rollers to the discs 11, 12, a pressing force adjustment mechanism 32 disposed on an end portion of the clamp arm 68 on the side opposite to the side supported by the arm shaft 65, and applying force to narrow a clearance, to the clamp arms 67, 68, a ball roller 95 disposed at an end portion of the clamp arm 68 on the side opposite to the side supported by the arm shaft 65, and kept into contact with a transmission case 9 to support the clamp arm 68, and a second actuator 90 generating the force to narrow a clearance between the clamp arms 67, 68. |
