| 摘要 |
A dispenser body (12) molded of plastic material includes an upper body portion (14) on which a trigger (26) is swingably pivoted and a vertically extending lower tubular portion (16). A piston (44) has an L shape and includes an upper folded horizontal portion (52) carried by spaced vertical wall portions (30) of the upper body portion (14). The piston (44) is vertically disposed in the upper body portion (14). A nozzle member (70) is mounted on the terminal end of the upper folded horizontal portion (52). An outlet conduit (54), communicating with an orifice formed in the nozzle member (70), is formed in the piston (44). A cylinder (32) coupled to the trigger (26) is disposed to slide vertically along the piston (44) within the lower tubular portion (16). The cylinder (32) defines a pump chamber (34) communicating with the outlet conduit (54). An inlet conduit (38) communicating with the pump chamber (34) is formed in the cylinder (32). A compression spring (50), seated in the cylinder (32) at the lower end thereof and abutting on the lower end of the piston (44) at upper end thereof, biases the cylinder (32) to its lower non-operation position. |
