| 摘要 |
<p>The present invention addresses the problem of providing a fluid control valve that can reduce the torque necessary to open or close the fluid control valve. In the present invention, in a fluid control valve, a cam member is interposed between a knob and a piston, interlocking with the knob; a concave or convex cam surface is formed in a contact end face of the cam member that is in contact with the piston; and a piston engagement section that is either convex or concave, that is, the opposite of the shape selected for the cam surface, is formed in the portion of the piston that is in contact with the cam surface.</p> |
