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1. 发明授权

US09534354B2 Construction machine 有权
标题翻译：施工机械
公开(公告)号：US09534354B2
公开(公告)日：2017-01-03
申请号：US15213011
申请日：2016-07-18
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Daisuke Yamamoto , Yohei Iwamoto , Hiroshi Tabeta , Osamu Kokuryo , Junya Kawamoto
IPC分类号： B62D55/00 , E02F9/02 , E02F9/16 , E02F9/20 , B62D55/06 , B62D55/084
CPC分类号： E02F9/024 , B62D33/06 , B62D55/06 , B62D55/084 , B62D55/10 , E02F9/16 , E02F9/2004
摘要： Disclosed is a construction machine that enables an operator to operate a vehicle width changing control lever while visually confirming positions of crawlers. The construction machine includes a lower track structure 1 whose left and right crawler track devices 11A and 11B are adapted to change in spatial interval, and an upper swing structure 2 swingably mounted above the lower track structure. The construction machine further includes a hydraulically actuated cylinder for changing vehicle width, disposed between the left and right crawler track devices, the vehicle width changing cylinder changing the interval between the left and right crawler track devices upon supply and discharge of a hydraulic fluid being controlled by a vehicle width changing control valve, and a vehicle width changing control lever 34 disposed on a left section of a swing body support structure 50 relative to an operator's seat 23, the vehicle width changing control lever operating the vehicle width changing control valve.
摘要翻译：公开了一种施工机械，其能够使操作者在视觉上确认履带的位置的同时操作车宽变更控制杆。施工机械包括其左履带装置和左履带装置11A和11B适于改变空间间隔的下履带结构1和可摆动地安装在下履带结构上的上摆动结构2。施工机械还包括设置在左履带装置和右履带装置之间的用于改变车辆宽度的液压致动缸，车宽度改变缸改变被控制的液压流体供给和排出时左右履带装置之间的间隔通过车宽变更控制阀，以及相对于操作者座椅23设置在摆动体支撑结构50的左侧部分的车宽变更控制杆34，车宽变更控制杆操作车宽变更控制阀。

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