| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an opening-closing position lock device of a valve for arranging the lock function only by applying simple processing to the valve. <P>SOLUTION: An opening position locking groove 18 and a closing position locking groove 19 are arranged on an outer surface of a cylindrical wall 6 in a ball valve 1, and a cylindrical part horizontal hole 20 and an operation arm horizontal hole 21 are arranged in parallel arrangement in a position near to an operation arm 12 and a position on the root side of the operation arm 12 by a cylindrical part 11 of a handle 9, and are movably fitted in the axial direction from one end side to the cylindrical part horizontal hole 20 in one end part of an operation shaft 22 penetrated so as to freely move to the operation arm horizontal hole 21, and a lock shaft 23 is arranged for freely engaging with/disengaging from the opening position locking groove 18 or the closing position locking groove 19, and moving elasticity is energized to the operation shaft 22 in the direction for always engaging the lock shaft 23 with the opening position locking groove 18 or the closing position locking groove 19. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
