WORK MACHINE

• Main Authors: KOJIMA SACHIYUKI, YAMAUCHI KAZUYOSHI
• Format: Patent
• Language: English
• Published: 08.12.2011
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; ENGINEERING ELEMENTS AND UNITS; FERTILISING; FISHING; FORESTRY; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HUMAN NECESSITIES; HUNTING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PLANTING; SOWING; THERMAL INSULATION IN GENERAL; TRANSPORTING; TRAPPING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a structure in which a transmission case is well cooled by a cooling fan.SOLUTION: An endless belt 44 is wrapped around an output pulley attached to the output shaft of an engine and an input pulley 43 attached to the input shaft 42 of the transmission case 41, and the cooling fan 47 is attached to the outer end of the input pulley 43. A conical part 41T which comprises an apex at the axis X of the input shaft 42 is formed on the transmission case 41. The input pulley 43 includes a conical pulley body part 43A formed along the conical part 41T and a belt-wound part 43B formed on the outer periphery of the pulley body part. Since a space S in which the distance between the input pulley 43 and the cooling fan 47 is increased toward the outer peripheral side of the input pulley 43 is formed, cooling air can flow without being obstructed by the input pulley 43.