TRAVELLING TRANSMISSION DEVICE IN WALKING-TYPE WORKING VEHICLE

摘要

PURPOSE:To enhance the control ability of a walking type working vehicle and to make it possible to rapidly travel and stop the vehicle, by providing a centrifugal type automatic control section to a travelling device clutch, and by providing a manual control mechanism for disengaging the clutch, overriding the automatic control section. CONSTITUTION:A drum 8 which is meshed with the input shaft 9 of a transmission unit which is not shown, is rotatably supported onto a prime-mover side rotary shaft 7 which is rotated by an engine, and two clutch members 10 are disposed, being circumferentially spaced from each other, so that a clutch 13 is constituted. Each clutch member 10 may be engaged with and separated from the inner peripheral surface 8a of the drum 8 under action of an elongated hole 14 through which a pin 11 is inserted, and is normally biased to its separated position by means of a spring 15, thereby a centrifugal type automatic control section 16 is constituted. Further, a cylindrical control member 17 is fitted onto a rotary shaft 7, movably in the axial direction thereof. A manual control mechanism 26 is constituted so that when the control member 17 is moved leftward by means of a control lever 21 through a wire 20 and a shift fork 18, the clutch is disengaged.