公开(公告)号：US10597853B2

公开(公告)日：2020-03-24

申请号：US15757678

申请日：2017-07-13

Applicant: KOMATSU LTD.

Inventor： Ryosuke Okui ,  Takeo Yamada ,  Gousuke Nakashima

IPC: E02F9/22 ,  E02F9/26 ,  G01B11/26 ,  G01B5/00 ,  G01C15/06 ,  G01B11/00 ,  E02F3/32

Abstract: A measuring jig is attached to an antenna support member of a revolving unit, and used to measure a slewing position of the revolving unit together with an external measurement apparatus. The measuring jig includes a prism mirror and an attachment member. The prism mirror reflects projection light from the external measurement apparatus. The attachment member attaches the prism mirror to the antenna support member. The attachment member is configured to be attached to the antenna support member by sandwiching an attached portion.

公开(公告)号：US10422111B2

公开(公告)日：2019-09-24

申请号：US15757107

申请日：2017-07-13

Applicant: KOMATSU LTD.

Inventor： Takeo Yamada ,  Ryosuke Okui ,  Gousuke Nakashima

IPC: E02F3/30 ,  E02F9/26 ,  E02F3/32 ,  E02F3/43 ,  E02F3/28 ,  E02F9/20

Abstract: A boom is attached to a body. A boom pin supports the boom while being swingable with respect to the body. A through-hole is made in the body. The through-hole is made such that a member (for example, the boom pin or a boom angle detector) that recognizes a position of the boom pin can be observed through the through-hole from a side of a hydraulic excavator.

公开(公告)号：US09371626B2

公开(公告)日：2016-06-21

申请号：US14419507

申请日：2014-09-10

Applicant: KOMATSU LTD.

Inventor： Yoshiki Kami ,  Takeo Yamada ,  Toru Matsuyama ,  Yuto Fujii ,  Takeshi Takaura

IPC: E02F3/43 ,  E02F3/32 ,  E02F9/22 ,  E02F9/26

CPC classification number: E02F3/435 ,  E02F3/32 ,  E02F3/437 ,  E02F9/2207 ,  E02F9/262 ,  E02F9/265

Abstract: A work vehicle includes a speed limit calculation portion, a speed determination portion, an adjustment portion, and a boom speed determination portion. The speed limit calculation portion calculates a speed limit for limiting a speed of a cutting edge of a bucket. The speed determination portion determines whether or not a speed of raising the boom has been lowered when an amount of operation of an arm is smaller than a prescribed amount. The adjustment portion delays speed change to the speed limit. The boom speed determination portion determines a target speed of the boom based on the speed limit after delay by the adjustment portion when it is determined that the speed of raising the boom has been lowered, and determines a target speed of the boom based on the speed limit calculated when it is not determined that the speed of raising the boom has been lowered.

Abstract translation: 工作车辆包括速度限制计算部分，速度确定部分，调节部分和动臂速度确定部分。 速度限制计算部分计算用于限制铲斗的切割刃的速度的速度限制。 当臂的操作量小于规定量时，速度确定部分确定升降臂的升高速度是否已经降低。 调整部分将速度变化延迟到速度限制。 当确定悬臂的升高速度已经降低时，起重臂速度确定部分基于调节部分的延迟之后的速度限制来确定起重臂的目标速度，并且基于速度确定起重臂的目标速度 当没有确定提升吊杆的速度已经降低时计算出的极限。