PROBLEM TO BE SOLVED: To restrict the shift operation of a gear shift lever to a high-speed reverse position without increasing an operation load for an operator even in a steering wheel noninversion working state.SOLUTION: The shift restriction mechanism includes a first shift restriction member 24 for restricting the shift operation of a main gear shift lever 9 to a high-speed reverse position in a steering wheel inversion working state, and a second shift restriction member 25 for restricting the shift operation of the main gear shift lever 9 to a high-speed reverse position in a steering wheel noninversion working state. The first shift restriction member 24 is displaced to a shift restriction position according to the operation of a shift restriction switching operation tool 26 to a first operation position, the second shift restriction member 25 is displaced to a shift nonrestriction position, the first shift restriction member 24 is displaced to a shift nonrestriction position according to the operation of the shift restriction switching operation tool 26 to a second operation position, and the second shift restriction member 25 is displaced to a shift restriction position.SELECTED DRAWING: Figure 6
【課題】オペレータの操作負担を増大させることなく、ハンドル非反転作業状態においても、変速レバーの高速後進位置への変速操作を規制する。【解決手段】変速規制機構は、ハンドル反転作業状態における主変速レバー9の高速後進位置への変速操作を規制する第1変速規制部材24と、ハンドル非反転作業状態における主変速レバー9の高速後進位置への変速操作を規制する第2変速規制部材25とを備え、変速規制切換操作具26の第1操作位置への操作に応じて、第1変速規制部材24を変速規制位置に変位させるとともに、第2変速規制部材25を非変速規制位置に変位させ、変速規制切換操作具26の第2操作位置への操作に応じて、第1変速規制部材24を非変速規制位置に変位させるとともに、第2変速規制部材25を変速規制位置に変位させる。【選択図】図6
SHIFT RESTRICTION MECHANISM IN WALKING TYPE WORK MACHINE
歩行型作業機における変速規制機構
2016-06-09
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16H Getriebe , GEARING / G05G CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY , Steuer- oder Regelvorrichtungen oder Steuer- oder Regelsysteme gekennzeichnet ausschließlich durch mechanische Einzelheiten |
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