LEVER DEVICE AND WORKING MACHINE WITH SAME

A lever device (22) includes: a base pedestal (25); a movable body (26); a lever (31); a cam body (33) having a cam groove (34); a guide pin (35); and a first biasing member (51). The cam groove includes: an intermediate groove portion (3a); an upper groove portion (34b); and a lower groove portion (34c). The lever is configured to swing between: a push-down position at which the guide pin is arranged in the upper groove portion; and a pull-up position at which the guide pin is arranged in the lower groove portion. The cam groove is provided at a position in front of a second lateral shaft (32) that is a rotation shaft of the cam body. The first biasing member has: one end connected to a first connector portion (61) provided on the base pedestal; and the other end connected to a second connector portion (62) provided on the cam body, is arranged behind the second lateral shaft when the lever is located at the push-down position, and is arranged in front of the second lateral shaft when the lever is located at the pull-up position.