Patent ID: 8356734

Claim:
A trigger type head cap for an aerosol sprayer that has an aerosol container with a stem provided on top of the aerosol container, the trigger type head cap comprising: a cap cover adapted to be fitted on the aerosol container of the aerosol sprayer; a tubular member that comprises a stem mating part which is adapted to mate with the stem on the aerosol container in the cap cover, and ends with a jet orifice, to form a flow path that is continuous from the stem mating part to the jet orifice in the tubular member; a trigger lever member capable of thrusting down the stem mating part of the tubular member in the cap cover; and a rotatable rotary stopper which acts as a cam and is capable of being pushed against an upper surface of the trigger lever member to hold the stem mating part of the tubular member in a state in which the stem mating part is thrust down; wherein the rotary stopper is substantially oval-shaped with a flat surface portion at a lower end thereof such that the flat surface portion can be pressed on the upper surface of the trigger lever member.