Patent ID: 7905339

Claim:
An operation mechanism of a working machine comprising: a main clutch lever provided pivotably about a first pivot point on a support bracket fixed to an operating handle; a pivot member provided pivotably about a second pivot point on said support bracket, said pivot member being pivotable in response to a pivoting operation of said main clutch lever; and a cable member for turning on a clutch mechanism in response to pivoting movement of said main clutch lever, wherein said pivot member includes a cable connection section to which one end portion of said cable member is connected so that by pulling said cable member in response to a pivotal operation of said main clutch lever to a fully pivoted state, said clutch mechanism is turned on, and by releasing said main clutch lever to a released state, said clutch mechanism is turned off, wherein said second pivot point, in said released state of said main clutch lever as well as in said fully pivoted state of said main clutch lever, is disposed between said first pivot point and a portion of said cable member located near said cable connection section, and wherein in the fully pivoted state of the main clutch lever, said cable member is located nearest to said pivot point of the pivot member.