| 摘要 |
PROBLEM TO BE SOLVED: To provide a jet unit of a trigger type liquid capable of realizing change of a stroke with no dropping of a liquid without deteriorating an operation property and not requiring labor for a sorting work or the like even at dumping. SOLUTION: The liquid jet unit of a trigger type is provided with a pump (6) for sucking, pressurizing and pressure-feeding the liquid in a vessel by repeatedly pulling an operation lever (4) elastically supported by a spring member (5); a body (2) having a feeding route (2d) for passing the liquid pressurized and pressure-fed by the pump (6); and an injection nozzle (3) arranged at a terminal end of the feeding route (2d) of the body (2) and injecting the liquid passed through the feeding route (2d) and pressure-fed toward an outer field. Respective constitution members of the pump (6) are formed by a synthetic resin. Further, a pressure accumulation valve element (10) for retaining an injection port (3a) of the injection nozzle (3) in the closing state and releasing the injection port (3a) by sliding only when a feeding pressure of the liquid reaches to a specified pressure is provided between the terminal end of the feeding route (2d) and the injection nozzle (3). COPYRIGHT: (C)2006,JPO&NCIPI
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