| 摘要 |
<p>A cylinder (12) is positioned along the vertical axis. A piston (16) and a trigger (18) are provided respectively with a pair of racks (40) capable of meshing with a pair of pinions (38) of a housing (14). By way of the pinion pair (38), pivoting motion of the trigger can be converted into a reciprocating movement of the piston along the vertical axis. It is thus possible to increase the amount of discharge of liquid in one stroke of the trigger without inducing for example a drop in operability upon molding. <IMAGE></p> |
