Patent ID: 8800400
Filing Date: 2014-08-12
Classification: F16H,Y10T

Abstract:
1. A dog-clutch transmission system comprising: first gears installed adjacent to each other on respective shafts so as not to be rotatable relatively to the respective shafts and to be axially slidable; and second gears installed so as to be rotatable relatively to the respective shafts and not to be axially slidable, wherein each of the first gears have dog-teeth projecting in an axial direction and each of the second gears have dog-holes recessed in the axial direction, wherein speed-stages are switchable by bringing the dog-teeth and the dog-holes into engagement and disengagement, wherein a speed-change ratio proportion of a change-speed ratio at an arbitrary n-speed speed-stage to a speed-change ratio at a (n+1)-speed speed-stage is set at 0.725 or more, and wherein a dog engagement difference rotational energy of the dog-teeth and the dog-holes is smaller than 30 joules.