| 摘要 |
A coupling for a manipulation lever device for connecting a shaft (23) that is rotated by a lever (20) supported on a valve main body (10) to a rotating shaft (25a) of a rotating angle sensor (25) mounted on the valve main body, comprising a fitting recessed portion (40) formed in the shaft, a coupling (41) adapted to be fitted into the fitting recessed portion, and a projection (42) provided on the rotating shaft so as to be fitted into a square hole (45) of the coupling, wherein the coupling is constituted by a pair of first pieces (43) confronting each other and a pair of wave-shaped second pieces (44) confronting each other so as to be formed into a shape having therein a square hole, wherein the pair of first pieces are fitted into the fitting recessed portion of the shaft, and wherein the projection is fitted into between the pair of second pieces, whereby even if the interference of a fitting portion between the square hole of the coupling and the projection is made large, the deformation of the coupling is made small, thereby making it possible to fit the coupling into the fitting recessed portion without any gap. |
