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    Work vehicle
    1.
    发明授权
    Work vehicle 有权

    公开(公告)号：US10538179B2

    公开(公告)日：2020-01-21

    申请号：US15361674

    申请日：2016-11-28

    Applicant: Kubota Corporation

    Inventor： Masato Asahara ,  Ryotaro Senda ,  Seiya Yoshida ,  Hideki Aoki ,  Kensuke Uemoto ,  Yoshikazu Togoshi ,  Yuto Fujii

    IPC: B62D37/04 ,  B60N2/38 ,  F02M37/00 ,  F02M37/04

    Abstract: A mower may include a body frame, a mower unit installed to the body frame, a grass collection container optionally installed at a rear portion of the body frame, a front-wheel support arm provided at a front portion of the body frame, a left front wheel and a right front wheel supported by the front-wheel support arm, a counterweight, and a weight bracket. The weight bracket may be provided on the front-wheel support arm and configured to attach the counterweight thereto. The counterweight may include a plurality of weight elements. The weight bracket may include a plurality of attachment portions. The at least one weight element may be attached to each attachment portion.

    Steering lever system for work vehicle
    2.
    发明授权
    Steering lever system for work vehicle 有权

    公开(公告)号：US10208852B2

    公开(公告)日：2019-02-19

    申请号：US15479684

    申请日：2017-04-05

    Applicant: KUBOTA CORPORATION

    Inventor： Hideki Aoki ,  David Spitz ,  Masahiro Yamada

    IPC: F16H59/06 ,  B62D1/12 ,  B62D11/02 ,  F16H59/04 ,  B62D11/12 ,  A01B69/00 ,  A01D34/66 ,  F16H59/02 ,  A01D101/00

    Abstract: A steering lever system includes a pair of lever bodies, a pivotal body coupled to each of the lever bodies and a neutral position detector. The pivotal body includes a first boss portion and a second boss portion. The lever body is pivotable about a first pivot axis of the first boss portion from a neutral position to a neutral end position. The lever body is also pivotable about a second pivot axis of the second boss portion from a forward traveling end position through a neutral position to a reverse traveling end position. The neutral position detector is responsive to a detected portion provided in an auxiliary member fixed to the lever body, at the neutral end position of the lever body. The detected portion is offset from a pivotal locus of the lever body about the first pivot axis.

    Grass Mower
    3.
    发明申请
    Grass Mower 有权
    割草机

    公开(公告)号：US20160192585A1

    公开(公告)日：2016-07-07

    申请号：US14837443

    申请日：2015-08-27

    Applicant: Kubota Corporation

    Inventor： Masaki Takaoka ,  Masato Asahara ,  Motosumi Shiotsuki ,  Hideki Aoki ,  Kazuaki Nogami ,  Akira Minoura

    IPC: A01D34/66 ,  A01D34/73

    CPC classification number: A01D34/66 ,  A01D34/733 ,  A01D2101/00

    Abstract: The grass mower includes a front wheel unit having a left front wheel and a right front wheel which are mounted to a vehicle body frame, a rear wheel unit having a left rear wheel and a right rear wheel which are mounted to the vehicle body frame and a mower unit disposed between the front wheel unit and the rear wheel unit downwardly of the vehicle body frame, the mower unit including a rotary blade unit that has at least a left blade and a right blade which are disposed side by side in a vehicle body left/right direction. The rotary blade unit is configured such that a tread-on track of the left front wheel is overlapped with a rotation locus portion of the left blade from the front side to the rear side thereof and a tread-on track of the right front wheel is overlapped with a rotation locus portion of the right blade from the front side to the rear side thereof.

    Abstract translation: 割草机包括：前轮单元，具有安装在车身框架上的左前轮和右前轮;后轮单元，具有安装在车体框架上的左后轮和右后轮;以及 割草机单元，其设置在车体框架向下的前轮单元和后轮单元之间，割草机单元包括具有至少左刀片和右刀片的旋转刀片单元，该刀片单元并排设置在车身中 左/右方向 旋转刀片单元被构造成使得左前轮的踏面轨道从左侧刀片的前侧到后侧的旋转轨迹部分重叠，并且右前轮的踏面轨道是 与右侧叶片的旋转轨迹部分从其前侧到后侧重叠。

    Work vehicle having oil equipment
    4.
    发明授权
    Work vehicle having oil equipment 有权

    公开(公告)号：US10024208B1

    公开(公告)日：2018-07-17

    申请号：US15388536

    申请日：2016-12-22

    Applicant: KUBOTA CORPORATION

    Inventor： David Spitz ,  Hideki Aoki

    IPC: A01D69/12 ,  F01M11/00 ,  A01D101/00

    Abstract: A work vehicle includes a vehicle body frame supported on a ground surface by wheels, a reinforcing plate provided in the vehicle body frame, an oil equipment using oil, and a drain pan configured to receive and discharge the oil discharged from the oil equipment. The reinforcing plate defines a drain hole extending vertically therethrough. A tilted face is provided in a face of the reinforcing plate. The tilted face extends with a downward inclination from a dropping point on the reinforcing plate for the oil discharged from the drain pan to the drain hole.

    Diesel work vehicle with duel fuel tanks
    5.
    发明授权
    Diesel work vehicle with duel fuel tanks 有权

    公开(公告)号：US09976524B2

    公开(公告)日：2018-05-22

    申请号：US14659953

    申请日：2015-03-17

    Applicant: KUBOTA CORPORATION

    Inventor： Masaki Takaoka ,  Seiya Yoshida ,  Junki Nakao ,  Hideki Aoki ,  Osami Fujiwara ,  Hiroyuki Tada

    IPC: F02M37/00

    CPC classification number: F02M37/0088 ,  F02M37/0023 ,  F02M37/0029 ,  F02M37/0047 ,  F02M37/0052

    Abstract: A work vehicle is provided with fuel supply lines that include a first fuel supply line that connects a first fuel tank and a junction. A second fuel supply line connects a second fuel tank and the junction. A common supply line connects the junction and a diesel engine. A fuel pump is provided on the common supply line. A first check valve is installed on the first fuel supply line and opens in accordance with a pressure differential between a pressure in the first fuel tank and a pressure in the junction. A second check valve is installed on the second fuel supply line and opens in accordance with a pressure differential between a pressure in the second fuel tank and a pressure in the junction. A fuel return line returns excess fuel from the diesel engine to the first fuel tank and the second fuel tank.

    Work vehicle
    7.
    发明授权
    Work vehicle 有权

    公开(公告)号：US11957074B2

    公开(公告)日：2024-04-16

    申请号：US17563594

    申请日：2021-12-28

    Applicant: KUBOTA CORPORATION

    Inventor： Yuto Fujii ,  Justin McCallister ,  Hideki Aoki

    IPC: A01D34/90 ,  B25F5/00

    CPC classification number: A01D34/905 ,  B25F5/006 ,  A01D2034/907

    Abstract: A work vehicle including a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds of the left and right driving wheels respectively, and a pair of solid dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers, wherein each solid dynamic vibration absorbing portion of the pair of solid dynamic vibration absorbing portions includes a weight within an elastic body, wherein the weight and the elastic body have equal longitudinal lengths.

    Work vehicle
    9.
    发明授权
    Work vehicle 有权

    公开(公告)号：US11246263B2

    公开(公告)日：2022-02-15

    申请号：US16430880

    申请日：2019-06-04

    Applicant: KUBOTA CORPORATION

    Inventor： Yuto Fujii ,  Justin McCallister ,  Hideki Aoki

    IPC: A01D34/03 ,  A01D34/90 ,  B25F5/00

    Abstract: A work vehicle includes a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds respectively of the left and right driving wheels and a pair of dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers.

    Grass mower tilt detection
    10.
    发明授权
    Grass mower tilt detection 有权

    公开(公告)号：US11160211B2

    公开(公告)日：2021-11-02

    申请号：US16223647

    申请日：2018-12-18

    Applicant: KUBOTA CORPORATION

    Inventor： Hideki Aoki ,  Akira Minoura

    IPC: A01D75/18 ,  A01D34/00 ,  A01D101/00

    Abstract: A grass mower includes a frame that extends in a front/rear direction of a machine body, a mower deck supported to/under the frame, the mower deck extending in a transverse direction of the machine body, a side edge of the mower deck protruding laterally from the machine body, a tilt detector for detecting a rolling angle of the machine body, a display device for displaying the rolling angle, a first informing device for effecting a first informing for calling attention to grass scraping by the side edge when a rolling angle detected by the tilt detector exceeds a first tilt angle and a second informing device for effecting a second informing for calling attention to traveling danger when the rolling angle detected by the tilt detector exceeds a second tilt angle.

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