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公开(公告)号：US10385546B2
公开(公告)日：2019-08-20
申请号：US15536370
申请日：2016-02-16
Applicant: KOMATSU LTD.
Inventor： Takashi Noda , Takuya Uemura , Masami Hirayama , Takashi Tsukamoto , Akira Kotani , Taira Ozaki , Hayato Kinoshita
IPC: E02F3/815 , B60R1/00 , E02F9/26 , B60Q1/04 , B60Q1/24 , E02F3/76 , E02F3/84 , E02F9/20 , G05D1/00 , B60Q1/26 , E02F9/08
Abstract: A lift cylinder is attached to a center part of a vehicle body in a vehicle width direction. The lift cylinder causes a work implement to move up and down. A supporting member is attached to the center part of the vehicle body in the vehicle width direction and extends upward from the vehicle body. An imaging device is supported by the supporting member and captures images of a region in front of the vehicle body. A penetrating part is formed in the supporting member. The lift cylinder is disposed through the penetrating part.
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公开(公告)号：US09617126B2
公开(公告)日：2017-04-11
申请号：US14348675
申请日：2013-10-31
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Yasuhiko Takeuchi , Hiroki Yamamoto , Kazumasa Teramoto
Abstract: A restraining roller of a hook winch has a roller middle part and first and second roller end parts. The roller middle part is formed in a columnar shape. Each of the first and second roller end parts is formed in a roughly circular truncated cone shape. The widths of the first and second roller end parts are greater than the diameter of a wire rope. A difference in diameter between an inner end and outer end of each of the first and second roller end parts is less than the diameter of the wire rope. Taper angles of the first and second roller end parts are different from each other.
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公开(公告)号：US20140338317A1
公开(公告)日：2014-11-20
申请号：US14114963
申请日：2013-05-20
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Yasuhiko Takeuchi
IPC: F16L1/024
CPC classification number: F15B21/042 , B66C23/44 , B66C23/76 , B66D1/44 , F15B2211/41554 , F15B2211/62 , F15B2211/7058 , Y10S60/905
Abstract: A pipelayer includes a pilot pressure control unit. The pilot pressure control unit supplies hydraulic fluid to a pilot port of a warm-up control valve so that the warm-up control valve enters an open state when a winch control valve is in the closed state. The pilot pressure control unit drains hydraulic fluid from the pilot port of the warm-up control valve so that the warm-up control valve enters the closed state when the winch control valve is in the open state. The stroke amount from the stroke end of the closed side of the spool of the warm-up control valve when the meter-out opening of the warm-up control valve is fully closed is larger than the stroke amount from the stroke end of the closed side of the spool of the winch control valve when the meter-in opening of the winch control valve is fully closed.
Abstract translation: 管道铺设机包括先导压力控制单元。 先导压力控制单元将液压流体供给到预热控制阀的先导端口，使得当绞车控制阀处于关闭状态时，预热控制阀进入打开状态。 先导压力控制单元从预热控制阀的先导端口排出液压流体，使得当绞车控制阀处于打开状态时，预热控制阀进入关闭状态。 当预热控制阀的出口打开完全关闭时，预热控制阀的阀芯的封闭侧的行程末端的行程量大于从关闭的行程末端的行程量 当绞盘控制阀的进入开启完全关闭时，绞盘控制阀的阀芯侧面。
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公开(公告)号：US11519157B2
公开(公告)日：2022-12-06
申请号：US17233698
申请日：2021-04-19
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Yusuke Yamazaki
IPC: E02F9/22
Abstract: There is provided a work machine that can avoid an unintended movement of a blade. A crawler dozer includes a controller. The controller controls EPC valves. A left tilt cylinder and a right tilt cylinder are asymmetrically attached to a blade. The EPC valves control direction and flow rate of supply of hydraulic oil to the right tilt cylinder. The EPC valves control direction and flow rate of supply of the hydraulic oil to the left tilt cylinder. The controller controls the EPC valves and the EPC valves to extend or contract the left tilt cylinder and the right tilt cylinder at different rates.
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公开(公告)号：US10532653B2
公开(公告)日：2020-01-14
申请号：US15554032
申请日：2016-10-20
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Taira Ozaki , Masami Hirayama
Abstract: A tractor includes an air cleaner and a passageway arranged to surround the air cleaner. Alternatively, tractor includes a maintenance equipment, an engine, a top plate covering the engine, and a floor section disposed at a position lower than the top plate and in a non-overlapping position with the engine as seen from above. In this tractor, the maintenance equipment is disposed on the floor section.
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Patent Agency Ranking
公开(公告)号：US10518637B2
公开(公告)日：2019-12-31
申请号：US15557905
申请日：2016-10-20
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Tomoaki Tsuji , Taira Ozaki
IPC: B60K15/063 , B62D55/06 , E02F9/26 , E02F3/815 , E02F5/32
Abstract: A crawler belt-type tractor includes a vehicle body, a travel device, an engine, and a fuel tank. The travel device is attached to the vehicle body. The travel device includes a crawler belt. The engine generates driving power for driving the travel device. The fuel tank is disposed in a rear portion of the vehicle body. The fuel tank stores fuel for the engine. The rear end of the fuel tank is positioned rearward of the rear end of the crawler belt.
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公开(公告)号：US10207577B2
公开(公告)日：2019-02-19
申请号：US15553325
申请日：2015-12-08
Applicant: KOMATSU LTD.
Inventor： Yuushi Oshikawa , Takashi Noda , Taira Ozaki , Takuya Uemura , Yuya Takahashi , Masami Hirayama , Hiroshi Itogawa
Abstract: A tractor includes a vehicle body, an engine, a cooling device, a fan, and a first exterior member. The engine is disposed on the front side of the vehicle body. The cooling device is disposed behind the engine. The fan is arranged to produce cooling air for the cooling device. The first exterior member is disposed on the front side of the vehicle body and covers the engine, the cooling device, and the fan. A first discharge port is arranged to discharge the cooling air and is provided in a first side surface of the first exterior member. The front side surface is positioned on a first side in the vehicle left-right direction. The front surface of the first exterior member includes no opening.
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公开(公告)号：US10113300B2
公开(公告)日：2018-10-30
申请号：US15537484
申请日：2016-02-12
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Tomoaki Tsuji
Abstract: A ripper device includes a first cylinder, a shank, and an arm. The first cylinder includes a tube and a rod, and is disposed to extend and retract in the forward and backward direction in a plan view of the ripper device. The shank is disposed aligned with the first cylinder in the forward and backward direction in the plan view. The arm supports the shank and overlaps the tube of the first cylinder in the plan view.
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公开(公告)号：US10005397B2
公开(公告)日：2018-06-26
申请号：US15536248
申请日：2016-02-16
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Naoto Shigeiri
CPC classification number: B60R3/02 , B60R3/005 , B62B5/02 , E02F9/0833 , E02F9/16 , E06C5/14 , E06C7/02 , E06C7/181
Abstract: An access device is configured to be switched between a stored state in which an access member is stored in a vehicle body and a deployed state in which the access member is deployed. In the stored state, an exterior cover becomes a portion of an exterior surface of the vehicle body and the access member is stored inside the vehicle body. In the deployed state, the access member extends from the vehicle body toward a ground surface and the exterior cover is disposed on a back side of the access member.
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公开(公告)号：US11732438B2
公开(公告)日：2023-08-22
申请号：US16891939
申请日：2020-06-03
Applicant: KOMATSU LTD.
Inventor： Takuya Uemura , Yusuke Yamazaki , Kei Nakano , Masahiro Ikeda
CPC classification number: E02F3/844 , E02F3/7613 , E02F3/7618 , E02F9/2004
Abstract: A controller determines that a signal from an operating device represents either a normal operation to manually control a blade or a trigger operation to automatically control the blade. The controller moves the blade so that the angle of the blade is changed in accordance with the operation of the operating device when the signal from the operating device is determined as representing a normal operation. The controller moves the blade until the angle of the blade reaches a predetermined target angle when the signal from the operating device is determined as representing the trigger operation while the bulldozer is traveling.
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