| 摘要 |
<p>PROBLEM TO BE SOLVED: To expand the adjustment width of clutch connection speed, reduce the number of solenoid valves,and omit a shuttle valve so as to simplify a clutch contact breaker. SOLUTION: A clutch contact breaker device 1 is provided with a hydraulic operation valve 7a which controls the supply and discharge of air pressure to an assistor 7 and performs manual interruption of a clutch 8 based on signal oil pressure from a master cylinder 10 and a first solenoid valve 79 which controls the supply and discharge of air pressure to the assistor 7 and the master cylinder 10 simultaneously, performs automatic interruption of the clutch 8, and controls the supply and discharge of oil pressure from the master cylinder 10. Moreover, it is provided with a second solenoid valve 78 which changes over between automatic and manual interruption of the clutch 8 by changing over first pneumatic pipes 65, 35 and second pneumatic pipes 34, 64, 35 based on control signals from the controller 72 and introduces air pressure discharged from the assistor 7 and the master cylinder 10 into third pneumatic pipes 65, 34 having a restriction 66 or fourth pneumatic pipes 64, 34 having no restriction to change over discharge speed when the clutch 8 is automatically connected.</p> |
