公开(公告)号：US09222236B2

公开(公告)日：2015-12-29

申请号：US14114845

申请日：2013-05-28

Applicant: KOMATSU LTD.

Inventor： Eiji Ishibashi ,  Hidehiro Hashimoto ,  Kenji Yamamoto ,  Yasuhito Yonezawa ,  Fumio Imamura ,  Kenjiro Shimada

IPC: E02F3/84 ,  E02F3/76 ,  E02F9/20

CPC classification number: E02F3/844 ,  E02F3/7613 ,  E02F3/7618 ,  E02F9/2041

Abstract: A bulldozer includes a blade pivotably attached to a vehicle body, a blade operation lever, and a blade control section. The blade operation lever outputs a lowering instruction signal, a holding instruction signal, and a raising instruction signal for the blade. The blade control section controls a height of the blade according the signal input. The blade control section can lower the blade to a predetermined position when the lowering instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from an advancing state, to the advancing state. The blade control section can raise the blade to a predetermined position when the raising instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from a reversing state, to the reversing state.

Abstract translation: 推土机包括可枢转地附接到车体的刀片，刀片操作杆和刀片控制部。 刀片操作杆输出用于刀片的下降指令信号，保持指令信号和升高指令信号。 叶片控制部分根据信号输入控制叶片的高度。 当传输从不同于前进状态的状态切换到前进状态之后，当下降指令信号和保持指示信号按顺序输入时，刀片控制部分可以将刀片降低到预定位置。 在从不同于反转状态的状态切换到变更状态之后，当提升指示信号和保持指示信号按顺序输入时，叶片控制部可以将叶片升高到预定位置。

公开(公告)号：US20140257646A1

公开(公告)日：2014-09-11

申请号：US14114845

申请日：2013-05-28

Applicant: Komatsu Ltd.

Inventor： Eiji Ishibashi ,  Hidehiro Hashimoto ,  Kenji Yamamoto ,  Yasuhito Yonezawa ,  Fumio Imamura ,  Kenjiro Shimada

IPC: E02F3/84

CPC classification number: E02F3/844 ,  E02F3/7613 ,  E02F3/7618 ,  E02F9/2041

Abstract: A bulldozer includes a blade pivotably attached to a vehicle body, a blade operation lever, and a blade control section. The blade operation lever outputs a lowering instruction signal, a holding instruction signal, and a raising instruction signal for the blade. The blade control section controls a height of the blade according the signal input. The blade control section can lower the blade to a predetermined position when the lowering instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from an advancing state, to the advancing state. The blade control section can raise the blade to a predetermined position when the raising instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from a reversing state, to the reversing state.

Abstract translation: 推土机包括可枢转地附接到车体的刀片，刀片操作杆和刀片控制部。 刀片操作杆输出用于刀片的下降指令信号，保持指令信号和升高指令信号。 叶片控制部分根据信号输入控制叶片的高度。 当传输从不同于前进状态的状态切换到前进状态之后，当下降指令信号和保持指示信号按顺序输入时，刀片控制部分可以将刀片降低到预定位置。 在从不同于反转状态的状态切换到变更状态之后，当提升指示信号和保持指示信号按顺序输入时，叶片控制部可以将叶片升高到预定位置。