公开(公告)号：US20160369479A1

公开(公告)日：2016-12-22

申请号：US15122208

申请日：2015-05-13

Applicant: KCM CORPORATION

Inventor： Tetsuji TANAKA ,  Yasunori MIYAMOTO ,  Koji HYODO ,  Isamu AOKI ,  Katsuyuki KIRITA ,  Hiroaki YADA ,  Seiji NAKAGAWA ,  Masaki YOSHIKAWA

IPC: E02F9/20 ,  E02F3/34

CPC classification number: E02F9/2004 ,  E02F3/34 ,  E02F3/431 ,  E02F9/2012

Abstract: A work vehicle, includes: a lift arm rotatably linked to a front portion of a vehicle body of a work vehicle so as to be allowed to swing along an up/down direction; an operation lever that can be operated within a range between a raising operation end position and a lowering operation end position, and is operated to raise and lower the lift arm; an up detent mechanism having a holding function for holding the operation lever at the raising operation end position once the operation lever is operated to the raising operation end position; and a down detent mechanism having a holding function for holding the operation lever at the lowering operation end position once the operation lever is operated to the lowering operation end position, wherein: when an angle of the lift arm becomes greater than a predetermined upper limit, the holding function of the up detent mechanism and the holding function of the down detent mechanism are disengaged.

Abstract translation: 工作车辆包括：提升臂，其可旋转地连接到作业车辆的车体的前部，以便允许其沿上/下方向摆动; 操作杆，其可以在升高操作结束位置和下降操作结束位置之间的范围内操作，并且操作以升高和降低提升臂; 一个升降制动机构，具有保持功能，一旦操作杆被操作到升高操作结束位置，就将操作杆保持在升起操作结束位置; 以及具有保持功能的下降制动机构，一旦操作杆被操作到下降操作结束位置，操作杆保持在下降操作结束位置，其中：当提升臂的角度大于预定上限时， 上止动机构的保持功能和下止动机构的保持功能脱离。