A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
REVOLVING WORK MACHINE
To provide a revolving work machine capable of locking a travel lever with a simple and economical configuration.SOLUTION: A revolving work machine comprises: a travel device; an airframe supported on the travel device so as to rotate around a vertical revolving shaft center; a driver seat which is provided on the airframe and on which an operator is seated; a steering base erected in front of the driver seat in the airframe; a travel lever provided on the steering base and operating the travel device by being operated so as to oscillate; a lever support shaft supporting the travel lever so as to oscillate around a shaft center extending in an airframe width direction; and a lock mechanism restraining and allowing oscillation of the travel lever around the lever support shaft. The lock mechanism includes: a lock support shaft disposed in front of and above the lever support shaft; and a lock body which includes a base portion cylinder engaged with the lock support shaft so as to rotate around the shaft center and which, interlockingly with a rotation of the base portion cylinder around the lock support shaft, can change its position between a position of restraining a movement of the travel lever by engaging with an engagement portion at the travel lever side and a position of allowing a movement of the travel lever by being separated from the engagement portion.SELECTED DRAWING: Figure 16
【課題】簡単かつ安価な構成で走行レバーをロックすることができる旋回作業機を提供する。【解決手段】旋回作業機は、走行装置と、走行装置上に上下方向の旋回軸心回りに回動自在に支持された機体と、機体に設けられていてオペレータが着座する運転席と、機体における運転席の前方に立設された操縦台と、操縦台に設けられていて揺動操作されることで走行装置を操作する走行レバーと、走行レバーを機体幅方向に延伸する軸心回りに揺動可能に支持するレバー支軸と、走行レバーのレバー支軸回りの揺動を拘束及び許容するロック機構と、を備え、ロック機構は、レバー支軸の前方且つ上方に配置されたロック支軸と、ロック支軸に軸心回りに回転可能に嵌められた基部筒を含み、且つ、基部筒の前記ロック支軸回りの回動に連動して、走行レバー側の係合部に係合することにより走行レバーの動きを拘束する位置と、係合部から離脱することにより走行レバーの動きを許容する位置との間で位置を切換可能なロック体とを有している。【選択図】図１６
REVOLVING WORK MACHINE
To provide a revolving work machine capable of locking a travel lever with a simple and economical configuration.SOLUTION: A revolving work machine comprises: a travel device; an airframe supported on the travel device so as to rotate around a vertical revolving shaft center; a driver seat which is provided on the airframe and on which an operator is seated; a steering base erected in front of the driver seat in the airframe; a travel lever provided on the steering base and operating the travel device by being operated so as to oscillate; a lever support shaft supporting the travel lever so as to oscillate around a shaft center extending in an airframe width direction; and a lock mechanism restraining and allowing oscillation of the travel lever around the lever support shaft. The lock mechanism includes: a lock support shaft disposed in front of and above the lever support shaft; and a lock body which includes a base portion cylinder engaged with the lock support shaft so as to rotate around the shaft center and which, interlockingly with a rotation of the base portion cylinder around the lock support shaft, can change its position between a position of restraining a movement of the travel lever by engaging with an engagement portion at the travel lever side and a position of allowing a movement of the travel lever by being separated from the engagement portion.SELECTED DRAWING: Figure 16
【課題】簡単かつ安価な構成で走行レバーをロックすることができる旋回作業機を提供する。【解決手段】旋回作業機は、走行装置と、走行装置上に上下方向の旋回軸心回りに回動自在に支持された機体と、機体に設けられていてオペレータが着座する運転席と、機体における運転席の前方に立設された操縦台と、操縦台に設けられていて揺動操作されることで走行装置を操作する走行レバーと、走行レバーを機体幅方向に延伸する軸心回りに揺動可能に支持するレバー支軸と、走行レバーのレバー支軸回りの揺動を拘束及び許容するロック機構と、を備え、ロック機構は、レバー支軸の前方且つ上方に配置されたロック支軸と、ロック支軸に軸心回りに回転可能に嵌められた基部筒を含み、且つ、基部筒の前記ロック支軸回りの回動に連動して、走行レバー側の係合部に係合することにより走行レバーの動きを拘束する位置と、係合部から離脱することにより走行レバーの動きを許容する位置との間で位置を切換可能なロック体とを有している。【選択図】図１６
REVOLVING WORK MACHINE
旋回作業機
MIURA HISASHI (author) / TANAKA SHO (author) / DATE MASAMITSU (author) / MIYAZAKI KENGO (author)
2021-03-11
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING