| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fluid pressure control device digitally supplying pressure of fluid such as oil pressure or air pressure. SOLUTION: This digital fluid pressure control device is constituted so that a plunger 16 is slidably supported with a plug 15 provided on a block 14, the seal 19 of the lower part of the plunger is provided on the lower end part of the plug, and fluid pressure and elastic force of a spring 18 pushing up the plunger are applied to the plunger projecting from the seal. A lower moving contact 32 is provided on the extreme end part of a magnifying member 38 magnifying motion of the plunger, a lower fixed contact 34 is provided on a position opposite to the lower moving contact so as to serve also as the stopper of the lower position of the magnifying member, and pressure fluid is supplied when the lower moving contact is contacted with the lower fixed contact. An upper moving contact 36 is provided on the upper part of the magnifying member, an upper fixed contact 38 of which the contact space can be adjusted is provided on a position opposite to the upper moving contact, and when the upper moving contact is contacted with the upper fixed contact, pressure fluid is leaked.</p> |
