| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a liquid forced feeding device to prevent the occurrence of breakage by relaxing the impact of a turn-over leaf spring and to perform excellent liquid forced feed operation for a long period. SOLUTION: A float 3, a switching valve 4, and a snap mechanism 5 are incorporated in a closed container 2. A snap mechanism comprises an oscillating shaft 35 supported in a closed container; a float arm 34 and an auxiliary arm 38 rotated around an oscillation shaft; a spring support part 40 formed at the float arm at a point separated away from the oscillation shaft; a spring support part 41 formed at an auxiliary arm at a point separated away from the oscillation shaft; a turn-over leaf spring 39 arranged between the two spring support parts; a suppression member 42 to turn over the turn-over leaf spring through suppression of curve of the turn-over leaf spring; and relaxing member 44 arranged between the auxiliary arm and the turn-over leaf spring and elastically relaxing the impact of the turn-over leaf spring. A float is coupled to the float arm and a switching valve is coupled to an auxiliary arm through a valve stem operation rod 28.</p> |
