| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sheet metal valve claw capable of remarkably reducing flow channel resistance by reducing the number of arm portions from three pieces to two pieces while keeping the strength of sheet metal claw. <P>SOLUTION: In this sheet metal valve claw 20 of a pipe joint 1 comprising a barrel portion 33 having a guide hole 34 on its center, the plurality of arm portions 32 formed on a peripheral edge of the barrel portion and bent to one side at a bent portion 36, and a spring locking portion 31 bent to the other side of the arm portions, two pieces of arm portions 32 are used. A width of a tip end portion of the arm portions is formed wider than the bent portion 36, and a dimension of an internal angleθbetween the barrel portion and the arm portion is determined to approximately 90°in mounting the sheet metal valve claw on the pipe joint. Further a reinforcement structure composed of a rib 35a formed along the longitudinal direction of the arm portions between the neighborhood of the tip of the arm portion and the bent portion, and a throttle portion 35c formed by extending a peripheral edge of the guide hole of the barrel portion 33 to the bending direction of the arm portion or its opposite direction, is provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
