| 摘要 |
PURPOSE:To make it possible to reduce the risk of damage and breakage of a hose, by rotating a winding motor in its winding direction in association with the setting of a jet cock arranged in the vicinity of a jet nozzle at a hose winding position. CONSTITUTION:In the sace of spraying a liquid from a spray nozzle 4, a jet cock 3 is set at a liquid jet setting position, and the spraying amount of the liquid is adjusted by rotating a handle 20. A pump P is driven by a motor E so that the liquid in a reservoir tank T is transferred through a suction pipe 12, a transfer pipe 5 and a hose 2, and is sprayed from the nozzle 4. At this time, the hose 2 is stretched from a wind-up drum 3. Further, upon completion or interruption of the spraying process, when the jet cock 3 is set at its hose winding position, a winding motor M is energized through a contact (i) and a conductor 11, and therefore, the wind-up drum W is rotated to automatically wind up the hose 2. Thereby, damage and breakage of the hose 2 due to abutting of foreign matter or heavy substances, or collapse can be reduced. |
