| 摘要 |
<p>PURPOSE:To permit superior stepless speed change for car speed with an economical constitution by installing the friction clutch which fills-up the gap between each speed change stage and changes and controls the car speed steplessly in each speed change step, combined with the speed change gear which changes and controls the car speed in steps. CONSTITUTION:A friction cluth 11 is installed between an engine and a speed change gear in steps in the transmission circuit which transmits the power of the engine to the transmission shaft to traveling wheels and a PTO shaft. The friction clutch 11 is constituted by installing alternately a plurality of steel discs 43 onto the clutch housing 42 fixed on a driving shaft 41 and plural pieces of friction discs 45 onto the rotary supporting metal 44 fixed on a transmission shaft 42, and operated by a hydraulic actuator 50. At this time, the hydraulic actuator 50 can change and control the degree of engagement of the friction clutch 11 from full engagement state to proper slip movement by properly controlling the hydraulic pressure which operates into oil chambers 56 and 57.</p> |
