| 摘要 |
PROBLEM TO BE SOLVED: To provide the subject mechanism having resolved such problems that because conventional power transmission mechanism for a winding drum has involved a plurality of pulleys and belts, the mechanism has been complicated, resulting in higher cost, and belt is poor in power transmission efficiency, furthermore, problematic in terms of maintenance because it is a sort of consumables. SOLUTION: This mechanism has such a scheme that, in a set power spray system D composed of a power sprayer A and a hose winder B as a unit, a transmission roller 21 is interposed between a power jet shaft 8 and a winding drum 12 to drive the winding drum 12, the transmission roller 21 is interlockingly linked to a turning lever 22, and a control lever 23 fixedly set on the turning lever is put to turning operation, so as to ensure the contact of the transmission roller 21 with the winding drum 12 to be turned on/off, thereby when the control lever is turned to a position for brake operation, the contact of the transmission roller with the winding drum is turned off and the contact of a brake shoe fixedly set on the turning lever with the winging drum is turned on.
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