公开(公告)号：EP4091419A1

公开(公告)日：2022-11-23

申请号：EP22184415.2

申请日：2019-12-02

申请人： Kubota Corporation

发明人： KAGO, Tatsuki ,  YAMASHITA, Nobuyuki ,  AKAI, Yuto ,  TOKUNAGA, Tatsuro ,  TASHIMA, Shinya ,  KUMASHIRO, Takashi ,  TONOYA, Yoshihisa ,  MIYAGUCHI, Kazutomo ,  YAMAMOTO, Tomohisa

IPC分类号： A01D34/00 ,  A01D37/00 ,  A01D41/00 ,  A01D43/00 ,  B60K28/10 ,  B62D25/10

摘要： A work vehicle includes an engine (E) mounted at a front portion of a machine body frame (2); and
a hood (10) pivotally openable/closable about a front pivot (S1) and housing the engine (E);
wherein at a front lower portion of the hood (10), there is formed an opening (10a) opened toward the lower side; and
there is provided a cover member (133) supported to the machine body frame (2), the cover member (133) being configured to cover the opening (10a) when disengaged from the hood (10), wherein
the machine body frame (2) includes a left and right stays (128) that pivotally supports the hood (10).

公开(公告)号：EP3777510A1

公开(公告)日：2021-02-17

申请号：EP20197036.5

申请日：2019-06-10

申请人： Kubota Corporation

发明人： TASHIMA, Shinya ,  SHIBATA, Takashi ,  HIRAI, Ryota ,  IIZUKA, Atsushi ,  MATSUMOTO, Ryo ,  HASHIMOTO, Taisuke ,  MIHARA, Akihito ,  TONOYA, Yoshihisa ,  KAGO, Tatsuki ,  HABU, Kentaro ,  TAKAOKA, Masaki ,  MIYAGUCHI, Kazutomo ,  AKAI, Yuto ,  KASETANI, Takahiro ,  KANAI, Toshiki ,  TOKUNAGA, Tatsuro ,  AKITA, Masayuki ,  KUMASHIRO, Takashi ,  YAMAMOTO, Tomohisa ,  YAMASHITA, Nobuyuki

IPC分类号： A01D43/063

摘要： This invention provides a riding grass mower comprising: a mower device (504) provided at a lower portion of a traveling vehicle body (501); a grass collecting container (550) configured to be detachably supported to the traveling vehicle body (501); a plurality of hydraulic cylinders (553,554) configured to raise and lower the grass collecting container (550) and to change an orientation of the grass collecting container (550); an electromagnetic valve (556) that is provided in a hydraulic oil supply/discharge passage (581) extending from a hydraulic oil supply source (508) provided in the traveling vehicle body (501) to the plurality of hydraulic cylinders (553,554), and is configured to control supply and discharge of hydraulic oil to and from the hydraulic cylinders; and a coupler (588) that is provided between the hydraulic oil supply source (508) and the electromagnetic valve (556), and is configured to be capable of connecting and disconnecting the hydraulic oil supply/discharge passage (581), wherein the electromagnetic valve (556) is supported to the traveling vehicle body (501) via a holder device (509), and the holder device (509) is configured to enable attachment and detachment of the electromagnetic valve (556) to and from the traveling vehicle body (501).

公开(公告)号：EP3591211A3

公开(公告)日：2020-03-18

申请号：EP19175231.0

申请日：2019-05-17

申请人： Kubota Corporation

发明人： KUMASHIRO, Takashi ,  NAGAI, Hiroki ,  YAMAMOTO, Tomohisa ,  KANAI, Toshiki ,  KOMORIDA, Takeshi ,  MIHARA, Akihito ,  TOKUNAGA, Tatsuro ,  MIYAGUCHI, Kazutomo ,  HASHIMOTO, Taisuke ,  MATSUMOTO, Ryo ,  FUJII, Yuto

IPC分类号： F02M35/02 ,  F02M35/10 ,  F02M35/16

摘要： A work vehicle includes: a prime mover section (2) that is provided in a front portion of a travel vehicle body (100); a hood (20) that covers the prime mover section (2); a driver section (4) that is provided rearward of the prime mover section (2) and has a driver seat (42); an engine (21) that is provided inside the hood (20); an air cleaner (24) that is provided inside the hood (20), above the engine (21), and processes external air that is to be supplied to the engine (21); an intake tube (61) that is coupled to the air cleaner (24) and takes air into the air cleaner (24); and a coupling tube (63) that is coupled between the engine (21) and the air cleaner (24), and supplies processed air that is external air processed while passing through the air cleaner (24), to the engine (21). The coupling tube (63) is coupled to the engine (21) while extending in a right-left direction of the travel vehicle body (100) and being coupled to the air cleaner (24).

公开(公告)号：EP3598887A2

公开(公告)日：2020-01-29

申请号：EP19179216.7

申请日：2019-06-10

申请人： Kubota Corporation

发明人： TASHIMA, Shinya ,  SHIBATA, Takashi ,  HIRAI, Ryota ,  IIZUKA, Atsushi ,  MATSUMOTO, Ryo ,  HASHIMOTO, Taisuke ,  MIHARA, Akihito ,  TONOYA, Yoshihisa ,  KAGO, Tatsuki ,  HABU, Kentaro ,  TAKAOKA, Masaki ,  MIYAGUCHI, Kazutomo ,  AKAI, Yuto ,  KASETANI, Takahiro ,  KANAI, Toshiki ,  TOKUNAGA, Tatsuro ,  AKITA, Masayuki ,  KUMASHIRO, Takashi ,  YAMAMOTO, Tomohisa ,  YAMASHITA, Nobuyuki

IPC分类号： A01D43/063

摘要： This invention provides a support carriage that carries and supports a grass collecting device when the grass collecting device is attached to and detached from the rear portion of a vehicle body, and a riding grass mower that has the support carriage. A support carriage (C) includes a base portion (30) that can move over a work floor (G), and a positioning portion (42) that is provided in the front portion of the base portion (30) and can be engaged with the vehicle body from behind. When the positioning portion (42) is engaged with the vehicle body, the base portion (30) is positioned relative to the vehicle body in the front-rear direction and the width direction.

公开(公告)号：EP3777512A1

公开(公告)日：2021-02-17

申请号：EP20197049.8

申请日：2019-06-10

申请人： Kubota Corporation

发明人： TASHIMA, Shinya ,  SHIBATA, Takashi ,  HIRAI, Ryota ,  IIZUKA, Atsushi ,  MATSUMOTO, Ryo ,  HASHIMOTO, Taisuke ,  MIHARA, Akihito ,  TONOYA, Yoshihisa ,  KAGO, Tatsuki ,  HABU, Kentaro ,  TAKAOKA, Masaki ,  MIYAGUCHI, Kazutomo ,  AKAI, Yuto ,  KASETANI, Takahiro ,  KANAI, Toshiki ,  TOKUNAGA, Tatsuro ,  AKITA, Masayuki ,  KUMASHIRO, Takashi ,  YAMAMOTO, Tomohisa ,  YAMASHITA, Nobuyuki

IPC分类号： A01D43/063 ,  A01D34/66 ,  B62D49/06

摘要： This invention provides a work vehicle comprising: a front wheel (111); a rear wheel (112); a pair of right and left main frames (110A) that are supported to the front wheel (111) and the rear wheel (112); a prime mover section (102) located at a front portion of the main frames (110A); and a front axle attachment bracket (107) that extends between the right and left main frames (110A) at a position below the prime mover section (102), wherein the front axle attachment bracket (107) includes an attachment plate (170) at each of right and left end portions, and the attachment plates (170) each include an attachment surface on a side facing a corresponding main frame (110A), and the attachment plates (170) are each configured to be detachable from the corresponding main frame (110A) via a bolt coupling mechanism, and are configured such that a coupling position can be changed in a vehicle body front-rear direction.

公开(公告)号：EP3461694A1

公开(公告)日：2019-04-03

申请号：EP18178110.5

申请日：2018-06-15

申请人： Kubota Corporation

发明人： KANAI, Toshiki ,  NAGAISHI, Shoichiro ,  AKITA, Masayuki ,  KIMURA, Arisa ,  MIYAGUCHI, Kazutomo

IPC分类号： B60R21/13

摘要： A work machine is disclosed that includes a ROPS (rollover protection structure) (6), which has a gate shape and has a pair of left and right vertical column portions (60) constituted by square pipe materials with a rectangular cross section. A reinforcing body (7) is provided that spans an upper portion on the upper side of the curved portion of each vertical column portion and a lower portion on the lower side thereof. The reinforcing body (7) includes a first reinforcing member (70) that is fitted from a lateral side of the vertical portion and has a channel-shaped cross section, a second reinforcing member (71) that has an L-shaped cross section having a face parallel to the front-rear direction of the first reinforcing member, and a face parallel to a left-right direction on a front side or a rear side of the first reinforcing member, and a third reinforcing member (72) that intersects the face parallel to the left-right direction of the second reinforcing member and covers an opening side of the channel-shaped cross section of the first reinforcing member.

公开(公告)号：EP3777511A1

公开(公告)日：2021-02-17

申请号：EP20197046.4

申请日：2019-06-10

申请人： Kubota Corporation

发明人： TASHIMA, Shinya ,  SHIBATA, Takashi ,  HIRAI, Ryota ,  IIZUKA, Atsushi ,  MATSUMOTO, Ryo ,  HASHIMOTO, Taisuke ,  MIHARA, Akihito ,  TONOYA, Yoshihisa ,  KAGO, Tatsuki ,  HABU, Kentaro ,  TAKAOKA, Masaki ,  MIYAGUCHI, Kazutomo ,  AKAI, Yuto ,  KASETANI, Takahiro ,  KANAI, Toshiki ,  TOKUNAGA, Tatsuro ,  AKITA, Masayuki ,  KUMASHIRO, Takashi ,  YAMAMOTO, Tomohisa ,  YAMASHITA, Nobuyuki

IPC分类号： A01D43/063

摘要： This invention provides a grass mower comprising: a vehicle body (201); a mower (204) located below the vehicle body (201), the mower (204) having a discharge portion (234) configured to discharge cut grass outward; a duct (235) configured to be in communication with and connected to the discharge portion (234) and guide cut grass conveyed from the discharge portion (234); a grass collecting portion (205) that is located at a rear portion of the vehicle body and is configured to collect cut grass that is guided by the duct (235); and a deformation prevention member (H) configured to prevent a change in orientation of a portion of the duct (235) that is connected to the discharge portion (234)..

公开(公告)号：EP3707985A1

公开(公告)日：2020-09-16

申请号：EP19212949.2

申请日：2019-12-02

申请人： Kubota Corporation

发明人： KAGO, Tatsuki ,  YAMASHITA, Nobuyuki ,  AKAI, Yuto ,  TOKUNAGA, Tatsuro ,  TASHIMA, Shinya ,  KUMASHIRO, Takashi ,  TONOYA, Yoshihisa ,  MIYAGUCHI, Kazutomo ,  YAMAMOTO, Tomohisa

IPC分类号： A01D34/00 ,  A01D37/00 ,  A01D41/00 ,  A01D43/00 ,  B60K28/10 ,  B62D25/10

摘要： A work vehicle includes an engine (E), an openable/closable hood housing the engine (E), a detection mechanism (28) for detecting an opened/closed state of the hood, a start commanding section (17) for commanding start of the engine (E) and a control section (34) for controlling the engine (E). The control section (34) does not start the engine (E) against a command if any from the start commanding section (17), if a closed state of the hood is not detected by the detection mechanism (28).

公开(公告)号：EP3653041A3

公开(公告)日：2020-08-05

申请号：EP19208462.2

申请日：2019-11-12

申请人： Kubota Corporation

发明人： HABU, Kentaro ,  HASHIMOTO, Taisuke ,  KANAI, Toshiki ,  KAGO, Tatsuki ,  TOKUNAGA, Tatsuro ,  TASHIMA, Shinya ,  AKAI, Yuto ,  MIYAGUCHI, Kazutomo ,  AKITA, Masayuki ,  NAGAISHI, Shoichiro ,  KIMURA, Arisa ,  YAMAMOTO, Tomohisa ,  NAKATSU, Ryotaro ,  HIRAI, Ryota ,  KAWAMOTO, Ryusuke ,  MATSUMOTO, Ryo

IPC分类号： A01D43/063

摘要： A ridable mower machine includes: a mower (7); a grass collecting container (9) configured to collect cut grass from the mower; a linkage mechanism (10) that includes a plurality of linkage members (21, 22), and supports the grass collecting container such that the grass collecting container can be lifted and lowered, and opened and closed; a hydraulic actuator configured to drive the grass collecting container; a hydraulic hose that is provided along a linkage member and is connected to the hydraulic actuator; and a cover (3)1 that covers a portion that extends along the linkage member, of the hydraulic hose.

公开(公告)号：EP3909415A1

公开(公告)日：2021-11-17

申请号：EP20174347.3

申请日：2020-05-13

申请人： Kubota Corporation

发明人： HIRAI, Ryota ,  MATSUMOTO, Ryo ,  AKITA, Masayuki ,  HABU, Kentaro ,  HASHIMOTO, Taisuke ,  KANAI, Toshiki ,  KAGO, Tatsuki ,  TOKUNAGA, Tatsuro ,  TASHIMA, Shinya ,  AKAI, Yuto ,  MIYAGUCHI, Kazutomo

IPC分类号： A01D43/063 ,  A01D34/71

摘要： A grass mowing machine includes a mower (4) disposed under a machine body and configured to discharge cut grass pieces sent from a discharging section (34) to the outside, a duct (35) connected to the discharging section (34) to be in communication thereto and configured to guide the cut grass pieces from the discharging section (34) and a grass collecting section disposed at a rear portion of the machine body and configured to collect the cut grass pieces guided by the duct (35). A deformation preventing member (H) is provided for preventing posture deformation at a connecting portion of the duct (35) for its connection to the discharging section (34).