| 摘要 |
PURPOSE:To surely rotate two shut dampers intersected with the axes of support shafts with the operation of one operating lever even when constituting parts have dispersion in size. CONSTITUTION:Transmission switching mechanism Z selectively switches the rotation transmission by the first and second rotation transmitting mechanisms X, Y. The transmission switching mechanism Z is provided with a groove section 29, an arm 26, and a pin 28. A circular arc-shaped groove section 29 centering on the support shaft 15 of an operating lever 17 is formed on the rear lower face of the operating lever 17. A long hole 27 is bored on the arm 26, and the non-cylindrical coupling section 25b of the shaft 25 of the second rotation transmitting mechanism Y is coupled with it. The arm 26 is fitted to the shaft 25 integrally rotatably and relatively movably to the support shaft 15 side by this coupling. The pin 28 is provided at the tip of the arm 26, and it is movably inserted into the groove section 29. The relative movement of the arm 26 against the shaft 25 absorbs the dispersion of constituting parts in size. |
