Trigger-type liquid dispenser

A trigger-type liquid dispenser comprising:

• a dispenser main body fitted to a mouth of a container containing a liquid;
• a pump configured to be actuated to pressure-feed the liquid contained in the container to a delivery port through a delivery flow path provided in the dispenser main body in response to operation of a trigger;
• and
• a nozzle fitted to the dispenser main body to dispense, to outside, the liquid pressure-fed to the delivery port, wherein:
• the dispenser main body includes a cylindrical-shaped fitted portion communicating with the delivery port,
• the nozzle includes:
• (i) a partition wall covering an opening end of the fitted portion and including a dispensing hole, and (ii) a tubular-shaped outer circumferential wall contiguous with an outer circumference of the partition wall to cover an outer circumference of the fitted portion, and the nozzle is rotatable with respect to the fitted portion between an opened position, in which the dispensing hole communicates with the delivery port, and a closed position, in which the dispensing hole is blocked from the delivery port,
• the outer circumferential wall includes a locking projection that protrudes toward an inner side in a radial direction from an inner circumferential surface of the outer circumferential wall, the locking projection being in undercut engagement with a projecting portion provided on an outer circumferential surface of the fitted portion to thereby hold the nozzle in engagement with the fitted portion, and
• in an inner edge portion of the locking projection, the locking projection includes a concave portion cut out and recessed into the locking projection in a direction outward along the radial direction, in which a degree of the undercut engagement with the projecting portion is reduced by the concave portion when the nozzle is located between the opened and the closed position.