PROBLEM TO BE SOLVED: To apply an operating mechanism which holds a target to be operated, in a prescribed operation state and reduces the operation load.SOLUTION: An operating mechanism 1A includes an operating lever 2A receiving operators force and a link member 3A configured to transmit an operation of the operating lever 2A to an operating wire 11 for operating the target to be operated, and the operating force is reduced at a ratio of distances between power working points and effort points, and support points in the operating lever 2A and the link member 3A. A working surface 22A of an operating part 20A rotated with a second support shaft 24A as a support point abuts on the link member 3A in a prescribed direction, thereby the operating lever 2A is held at a lock position.COPYRIGHT: (C)2011,JPO&INPIT【課題】操作対象物を所定の作動状態で保持でき、かつ操作荷重が軽減される操作機構を適用する。【解決手段】操作機構1Aは、操作者の力を受ける操作レバー2Aと、操作レバー2Aの動作を、操作対象物を作動させる操作ワイヤ11に伝達するリンク部材3Aを備え、操作レバー2A及びリンク部材3Aにおける力の作用点及び力点と支点間距離の比で操作力が軽減される。操作レバー2Aは、第2の支軸24Aを支点に回転させた操作部20Aが所定の向きで作用面22Aがリンク部材3Aに当接することで、ロック位置で保持される。【選択図】 図1