| 摘要 |
PURPOSE:To improve workability by placing a winding cock connected to a hose, near a spray nozzle mounted on the end of said hose and enabling said hose to be automatically wound around a winding drum by means of the closing action of said cock. CONSTITUTION:When a spray cock 64 is closed at the end of a sprincling operation of a chemical liquid, etc., while a winding cock 62 is also closed, a liquid in a hose 8 and an introduction tube 19 is prevented from flowing outside through a delivery pipe 63, causing liquid pressure working on the right side of a piston 16 to be great and moving the piston 16 leftward. Then, a three-way valve 22 is shifted through a piston rod 15 and a shifter 20, allowing the liquid to flow through introduction tubes 24, 24' into a winding cylinder 2. Accordingly, a piston rod 5 is raised, a pressing roller r1 is pressed against the pulley 2 side of a belt 3 through a tension lever 4, and a winding drum D is rotated through the pulley 2 driven by a prime mover E, the belt 3, and a pulley 1, winding the hose 8. |
