| 摘要 |
A liquid dispenser comprising an elongated housing (1) which, at its front end, is provided with means (11) for securing a dispensing means (12, 13) thereto, a cavity (5) for holding a liquid and comprising an axially displaceable piston (8), a toothed bar (20) which is axially displaceable in said housing (1) and the front end of which being in contact with the piston (8), a spring-actuated lever arm (22) which is connected to the housing (1) by means of a hinge device and which is connected with a latch, the front end of which being in contact with the toothed bar (20) upon depression of the lever arm (22) engaging with the toothed bar (20) and causing axial displacement thereof towards the front end of the housing (1) and during the return of the lever arm (22) to its starting position disengaging from the toothed bar (20) and wherein the lever arm, the spring and the latch are integral, and the spring and latch are constituted of one and the same element (25). |
