| 摘要 |
PROBLEM TO BE SOLVED: To provide a trigger type liquid injector capable of being made compact in its entirety, reducing the number of members, having no insertion error of components, having no possibility of functional drop as compared with the conventional product, capable of smoothly sucking and injecting liquid, and capable of exhibiting a satisfactory discharge valve function.SOLUTION: A trigger type liquid injector is caused by the operation of a trigger F to suck the liquid in a container body 100 into a cylinder tube 30 and to inject the sucked liquid from an injection port from the leading end of a nozzle D. The cylinder tube is fitted in the inner circumference of a cylinder fitting tube 22 having a closed rear end and protruded forward from a vertical barrel 19 for defining a vertical flow passage pa. The vertical flow passage pa is divided into a lower vertical passage pa1 and an upper vertical passage pa2. There are provided a first communication hole 24 for communicating the inside of the lower vertical passage and the inside of the cylinder tube and a second communication hole 25 for communicating the cylinder tube inside and the upper vertical passage inside. Through an elastic portion 31 extending integrally from the cylinder barrel, a discharge valve body 32 for closing the first communication hole by press contact with the same is integrally disposed to construct a discharge valve V1. |
