TRIGGER-TYPE FLUID JETTING DEVICE

摘要

A jetting device body (11) includes a cylindrical fitting part (16a) that is contiguous with a feed port (39). A nozzle (40) comprises: a nozzle body (41) in which a tubular outer casing (41c), which covers the outer periphery of the fitting part (16a), and a partition wall (41a), which has a jetting hole (44) and is positioned on the inside of the outer casing (41c) so as to cover the opening-end of the fitting part (16a), are integrally formed; and a nozzle extension body (42) which is provided with a tubular outer casing extension body (42a) that is aligned with the tip of the outer casing (41c) and which is attached to the nozzle body (41) from a direction along the central axis of the nozzle main body. A jetting tube (51) is formed by: a first jetting tube (51a), which has a cylindrical shape with the central axis coincident with that of the jetting hole (44) and which is integrally provided on the outer surface of the partition wall (41a) on the opposite side from the side towards the fitting part (16a);and a cylindrical second jetting tube (51b) which is integrally provided to an outer casing extension body (42a) on the outside of the outer casing extension body (42a), and which is disposed so as to overlap the end of the first jetting tube (51a). Notches (52a) are provided in the end of the first jetting tube (51a) or the base of the second jetting tube (51b). The opening end of the notches (52a) is closed by the second jetting tube (51b), or the first jetting tube (51a) and as a result, air introduction holes (52) are provided in the jetting tube (51).