| 摘要 |
PURPOSE:To exactly detect the operations of an operational lever by a method in which rollers contacting the cam of a spool are made integrally rotatable throug link mechanisms in such a way that the independent rotation of the roller on the spool side is enabled. CONSTITUTION:Spools 2, 3, 4, and 5 having cams 6, 7, 8, and 9 are provided to a control valve group 1, and the first link mechanism is formed of the first roller 20 in contact with the cam 6 of the spool 2, side plates 21 and 12 fixed to the tip of the first roller 20, and a shaft 22. The second link mechanism consisting of the second roller 24 in contact with the cams 7, 8, and 9 of the spools 3, 4, and 5, the side plates 13 and 24 fixed to the tip of the second roller 24, and a shaft 25 is also provided. The first and second link mechanisms are integrally connected rotatably through claws 27 and 28 and a bolt 29. |
