To improve operability by providing a release member of a work clutch lever on a rotating shaft interlockingly connected to the base part of a travel clutch lever, and interlockingly connecting an engaging body to the work clutch lever.
An engagement release pin 104 serving as a release member of a work clutch lever 59 is fixed onto a rotating shaft 78 interlockingly connected to the base part of a travel clutch lever. The front part of an engaging body 89 with the pointed rear end to be lock mechanism is pivotally supported to the lower part of a rotating arm 96, and the engaging body 89 is extended toward the outer peripheral surface of a boss 90. The engagement release pin 104 is rotated in conformity to the operation of the travel clutch lever so as to make the engaging body 89 movable between a lock release position below the boss 90 and a lock position to be inserted in an engaged part at the front upper part of the boss 90. With this constitution, the engagement release pin 104 constituting lock mechanism is interlocked with the travel clutch lever in operation through the rotating shaft 78 to serve for the function of a deadman clutch lever. Operability is therefore improved.
MIYAKE KAZUMI
YAMANE TOSHIHIKO
