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公开(公告)号：US20210351465A1
公开(公告)日：2021-11-11
申请号：US17350775
申请日：2021-06-17
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Kazuo Koike , Yasuhiro Manji
Abstract: An electric work vehicle includes a battery container provided in a traveling vehicle body and including a guiding unit, and a battery pack removably attached to the battery container and including a guided unit. A pair of rollers are provided in one of the guiding unit and the guided unit, and a pair of engaging portion to be engaged with the rollers are provided in the other of the guiding unit and the guided unit. When the battery pack is loaded or unloaded onto/from the battery container at the loading/unloading position, the rollers engage with the engaging portions, thereby functioning as pivot fulcrums for enabling the battery pack to pivot for loading and unloading.
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公开(公告)号：US20210345550A1
公开(公告)日：2021-11-11
申请号：US17381716
申请日：2021-07-21
Applicant: Kubota Corporation
Inventor： Katsuhiko Uemura , Hirokazu Ito , Kazuaki Matsuda , Yasuhiro Manji
Abstract: An electric work vehicle includes: a battery accommodating portion that is provided in the vehicle body and accommodates a battery; a first connector provided on the battery accommodating portion; a second connector provided on the battery; and an operating tool for moving the battery and the second connector, and switching from a pre-attachment orientation in which the second connector opposes the first connector to an attachment orientation in which the second connector is joined to the first connector.
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公开(公告)号：US11145144B2
公开(公告)日：2021-10-12
申请号：US16003566
申请日：2018-06-08
Applicant: Kubota Corporation
Inventor： Yasuhiro Manji , Hirokazu Ito
IPC: G07C5/04 , B60L3/12 , B60L58/16 , B60L58/12 , H01M10/48 , H01M10/42 , A01D34/00 , A01D69/02 , G07C5/00 , A01D34/66 , A01D101/00
Abstract: Disclosed is a work vehicle management system including: a battery work information generation unit that generates battery work information indicating a use state of a battery during work of a work vehicle; a battery deterioration information generation unit that chronologically diagnoses the battery work information to generate battery deterioration information that indicates a deterioration trend of the battery that is unique to the work vehicle; and a notification unit that performs notification of the battery deterioration information to a manager of the work vehicle.
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公开(公告)号：US20210101462A1
公开(公告)日：2021-04-08
申请号：US16898037
申请日：2020-06-10
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Junichi Yamanaka , Kazuaki Matsuda
Abstract: In an electric work vehicle, a power feeding assembly which connects a battery device to a power controller unit so as to feed power includes a fixed connector which is fixed to the battery device and electrically connected to the battery device, a cable harness connected to a power controller unit, and a free connector which is connected to an end of the cable harness and connectable to a fixed connector, and a connecting operation tool is configured to be movable the free connector between the connecting position in which the free connector is connected to the fixed connector and the detaching position.
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公开(公告)号：US20210068341A1
公开(公告)日：2021-03-11
申请号：US16895591
申请日：2020-06-08
Applicant: Kubota Corporation
Inventor： Kazuaki Matsuda , Hirokazu Ito
Abstract: A housing holding parts includes a plurality of outer circumferential plates connected with each other to form a first enclosed space, one or more of the outer circumferential plates having a total of two or more outer holes formed therein, and a gutter member connected to at least two outer circumferential plates, the gutter member having an inner hole formed therein, wherein a second enclosed space is formed by the outer circumferential plates and the gutter member, the outer holes communicate with the second enclosed space, and the inner hole is provided to be offset from each of the lines passing through each of the outer holes which are perpendicular to the outer circumferential plates in which the outer holes 8 are formed.
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Patent Agency Ranking
公开(公告)号：US10538166B2
公开(公告)日：2020-01-21
申请号：US15378868
申请日：2016-12-14
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Yasuhiro Manji , Kazuaki Matsuda
Abstract: A portable charger device 200 includes a charger device side battery 3, a first charging control section 31 for non-quick charging of the charger device side battery 3 by power supply from an external power source 8, and a second charging control section 32 for quick charging of a vehicle side battery 4 mounted on an electric vehicle 100 by power supply from the charger device side battery 3.
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公开(公告)号：US20190111789A1
公开(公告)日：2019-04-18
申请号：US15993854
申请日：2018-05-31
Applicant: Kubota Corporation
Inventor： Kazuaki Matsuda , Hirokazu Ito , Yasuhiro Manji
Abstract: An electric travelling vehicle including: a motor controller configured to control an electric motor based on displacement of a steering operation part to a forward travel position, a neutral position, and a rearward travel position, a brake controller configured to bring an electromagnetic power-off brake into a released state or a braking state; and a travel state detector configured to detect a travelling state that is accompanied with the released state, a stopped state that is accompanied with the braking state, and a transit stopped state that is accompanied with the braking state.
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公开(公告)号：US10038176B2
公开(公告)日：2018-07-31
申请号：US15356771
申请日：2016-11-21
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Yasuhiro Manji
CPC classification number: H01M2/34 , B60K1/02 , B60K1/04 , B60K7/0007 , B60K2001/0416 , B60K2001/0477 , B60K2001/0494 , B60L50/66 , B60L58/12 , B60L2200/40 , B60L2250/00 , B60Y2200/223 , B60Y2400/112 , H01M2/1077 , H01M2/1083 , H01M2/206 , H01M10/425 , H01M10/48 , H01M2010/4271 , H01M2220/20 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y10S903/907
Abstract: An electric work vehicle includes a plurality of battery mounting portions, a plurality of battery packs that can be detachably mounted to the battery mounting portions, a main body contact provided for each one of the battery mounting portions and electrically connected with the battery back mounted to the battery mounting portion, a power feeding circuit to which the main body contact is parallel connected, a battery switch configured to block flow of electric power from the battery pack to the power feeding circuit, a switch operating portion for operating the battery switch, a charged amount estimating portion for estimating a charged power of the battery pack mounted to the battery mounting portion, an electric motor driven by power fed from at least one battery pack via the power feeding circuit, and a driving wheel receiving power transmitted from the electric motor.
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公开(公告)号：US09937779B2
公开(公告)日：2018-04-10
申请号：US14202462
申请日：2014-03-10
Applicant: KUBOTA CORPORATION
Inventor： Kazuo Koike , Hirokazu Ito , Takafumi Komatsu
CPC classification number: B60K1/02 , B60K1/00 , B60K1/04 , B60K7/0007 , B60K17/12 , B60K2001/0405 , B60K2007/0038 , B60K2007/0061 , B60K2007/0092 , B60Y2200/223
Abstract: Vehicle according to the present invention includes a traveling vehicle body and left and right drive wheels. Left and right propulsion motors drive the left and right drive wheels. A battery supplies electric power to the left and right propulsion motors. The left and right drive wheels are positioned on two width-direction ends of the traveling vehicle body. The left and right propulsion motors are positioned on the traveling vehicle body so as to align with the left and right drive wheels in the width direction of the vehicle body. The battery is positioned in a battery installation space of the traveling vehicle body. The battery installation space is located in at least a space located below the left and right propulsion motors.
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公开(公告)号：US20180069275A1
公开(公告)日：2018-03-08
申请号：US15605994
申请日：2017-05-26
Applicant: Kubota Corporation
Inventor： Hirokazu Ito , Yasuhiro Manji
CPC classification number: H01M10/482 , H01M2/1077 , H01M2/206 , H01M10/486 , H01M2220/20
Abstract: A battery pack includes a plurality of battery modules stacked with connecting terminals disposed at predetermined positions, a holding unit for holding the plurality of battery modules under the stacked state, a plurality of conducting paths connecting corresponding connecting terminals, and a substrate connected to the holding unit. The plurality of conducting paths are provided integrally in the substrate and disposed to connect the corresponding connecting terminals in association with connection of the substrate to the holding unit.
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