| 摘要 |
PURPOSE:To ensure sealing action of a circular sheet member by fitting a spring member in a circular groove of a circular sheet member. CONSTITUTION:A circular engaging groove 51a is formed on the outer peripheral portion of a spool valve body 51 movably disposed in the interior of a metal reversing valve body 50, and an engaging flange 51b is projected thereon. A circular notch groove 52a is disposed on one axial side of a circular sheet member 52 formed of a fluororesin, thereby forming an outside circular lip 52b and an inside circular lip 52c. A free end portion of the outside circular lip 52b is provided with a slidable contacting circular projection 52b1 for the valve body formed on the outside thereof, and a free end portion of the inside circular lip 52c is provided with a circular engaging projection 52c1 for the circular engaging groove 51a formed on the outside thereof and with a circular engaging projection 52c2 for a circular spring member 53 fitted in the circular notch groove 52a, which is formed on the inside thereof. |
