ROTATION TRANSMITTING MECHANISM AND LEVER SWITCH ADOPTING ROTATION TRANSMITTING MECHANISM

摘要

There is adopted a case 2 having a curved outer appearance in an operating lever in which two rotary knobs 3, 4 are provided to be spaced therebetween. Rotation of a first rotary knob 3 is transmitted by an inner diameter-side rotation transmitting member 6 for connecting a first shaft portion 61 and a second shaft portion 63 to be capable of rotating integrally by a flexible shaft 62, and rotation of a second rotary knob 4 is transmitted by an outer diameter-side rotation transmitting member 7 for connecting a tubular part inserted outside of the first shaft portion side and a tubular member inserted outside of the second shaft portion side for rotation transmission by a rotation transmitting mechanism 8. Torsional stress causing an inner periphery of an outer spring Sp1 in the rotation transmitting mechanism 8 to make pressure contact with a tubular wall part 813 of a common holder 81 and a large-diameter tubular part of an inner holder 85 acts on the outer spring Sp1, and torsional stress causing an outer periphery of an inner spring Sp2 to make pressure contact with the tubular wall part 813 of the common holder 81 and the large-diameter tubular part of the inner holder 85 acts on the inner spring Sp2, thus connecting the inner holder 85 and an outer holder 86 to be incapable of rotating relative to each other.