| 摘要 |
A pipe coupling member has a tubular body (20) and a valve unit (22) slidably set in the through-hole of the tubular body. The valve unit has a valve holder (26) and a rotary valve member (30) supported by the valve holder so as to be rotatable about a pivot axis perpendicular to the axis of the through-hole. The valve holder comprises a valve seat portion (26-1) and a valve support portion (26-2) that are separately disposed in series in the axial direction or the direction of the axis of the though hole. The valve support portion rotatably supports the rotary valve member. When the valve holder moves axially in the through-hole, the rotary valve member is rotated by a cam mechanism (32) and displaced between a closed rotational position and an open rotational position while its spherical outer peripheral surface sliding relative to an annular valve seat of the valve seat portion. When in the closed rotational position, the rotary valve member sealingly engages all around the annular valve seat to close the fluid path. A spring member (28) urges the valve support portion to urge the valve holder toward the closed rotational position. When the coupling member is decoupled, the rotary valve member therein is surely placed in the closed rotational position.
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