| 摘要 |
<p>PURPOSE:To improve the attachable or detachable properties of a valve body to or from a valve seat ever so better, by forming the valve body into being thinned in good measure, while making a top surface of the valve seat into a rising gradient toward a free end part at a tip of the valve body. CONSTITUTION:A tongue piece 22 extended to a sideward direction from a valve diaphragm being vibrated in reciprocating motion is installed. These are formed by eleastic materials including CR, etc. A valve body 23 for suction and another valve body for exhaust are parallelly installed in this tongue piece 22 and formed with some notches. The valve 23 for suction installs a step difference (t) from a top surface of the tongue piece 22 and formed into being thinned on a plane surface in good measure. Likewise, the valve body for exhaust installs the step difference (t) and formed into being thinned on a plane surface. A top surface 13a of a valve seat 13, where the suction valve body 23 is attached or detached at need, is made into an incline in a rising gradient toward a free end part at the tip from a base end part of the valve body 23. The exhaust valve body is also constituted in the same manner.</p> |
