| 摘要 |
PURPOSE:To miniaturize a structure for cupling a transmission lever with a transmission valve so that the operation unit in the caption can be arranged in any bent and curved state, by arranging a part of the wire portion of a pair of coupling wires wound around a wire pulley on the valve side, so that said pair of wires can be seen overlapped when viewed in the core direction of the rotary shaft of the wire pulley on the valve side. CONSTITUTION:When a transmission lever 22 is operated in swinging motion, a wire pulley 20 on the lever side makes turning movement so that a pair of wires 19a, 19b used for coupling may increase this rotational speed by means of a difference between the wire winding diameters of wire pulleys 20, 18 on the lever side, an the valve side respectively so as to transmit said rotation to the rotation operation shaft 17a of a transmission valve 17. Therefore, since the rotation can be transmitted in an increased state of its speed and the wire winding diameter of a wire pulley 18 on the valve side can be decreased as small as possible, a coupling structure can be miniaturized. Furthermore, it is also possible to arrange this unit in any bent and curved space and to miniaturized the transmission valve 17.
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