| 摘要 |
<p>An operating device capable of opening and closing a valve by operation of any one of operating tools, an operating pedal or an operating lever and allowing operation of the respective operating tools with operating forces suited for the respective operating tools, comprising an inner push rod (9) adapted to move up and down on the basis of operation of a forward operating pedal (5L) and a backward operating pedal (6L), an outer push rod (10) adapted to move up and down on the basis of operation of an operating lever (4L), a moving body (11) adapted to move on the basis of separate movements of these rods, a spool (12) for opening and closing a valve on the basis of movements of the moving body, and first and second springs (15, 13) for biasing the inner push rod and the outer push rod, respectively, so as to apply an operating force on the operating pedals and the operating lever, respectively.</p> |
