| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid container mounting pump enabled to dissolve the state, in which a first check valve body sticks to a first valve seat, by an operation to turn a discharge cap at the time of starting the use.SOLUTION: The lower portion of an operation member E is inserted in freely rising and falling manners into a cylinder B. The lower end part of a stem E1 connected to a discharge head E4 of the operation member is formed of a vertically long inner cylinder part 40 and a vertically short outer cylinder part 41. An annular piston E3 is mounted between that outer cylinder part and a piston guide E2 attached to the lower end of the inner cylinder part thereby to form a first check valve seat 23 at the lower end of the cylinder B. This valve seat is contacted by a first check valve body 38 owned by a check valve member D. Between this check valve member and the piston guide, there is interposed a coil spring E. The discharge head can be threaded, when not used, into a threaded cylinder 31 rising from said cylinder. When the discharge head is screwed upward into the threaded cylinder, its turning force is transmitted to the check valve member through the stem, the piston guide and the coil spring. |
