Patents by Inventor Taihei Daiyakuji
Taihei Daiyakuji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230132970Abstract: The electric tractor is equipped with a battery, a transmission unit, a machine body frame, a rear axle unit, and a front axle unit. The transmission unit shifts the input power and outputs the shifted input power. The machine body frame is fixed to the transmission unit. The rear axle unit supports the rear wheels, and transmits, to the rear wheels, the power output from the transmission unit. The front axle unit supports the front wheels. The rear axle unit and the front axle unit support chassis including the machine body frame and transmission unit. The battery is supported by the chassis.Type: ApplicationFiled: October 15, 2022Publication date: May 4, 2023Applicants: Yanmar Holdings Co., Ltd., Toyota Motor CorporationInventors: Yusuke Hashimoto, Taihei Daiyakuji, Masashi Matsumoto, Tomohiko Miyamoto, Hirotsugu Iwamoto, Tomohiro Sato
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Patent number: 11408505Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.Type: GrantFiled: May 3, 2021Date of Patent: August 9, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Taihei Daiyakuji, Hitoshi Nomura
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Publication number: 20210254710Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.Type: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: Taihei DAIYAKUJI, Hitoshi NOMURA
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Patent number: 11022215Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.Type: GrantFiled: January 17, 2020Date of Patent: June 1, 2021Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Taihei Daiyakuji, Hitoshi Nomura
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Publication number: 20200149632Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.Type: ApplicationFiled: January 17, 2020Publication date: May 14, 2020Inventors: Taihei DAIYAKUJI, Hitoshi NOMURA
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Patent number: 10563761Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission, and an electric cylinder, and a power transmission mechanism. The hydraulic continuously variable transmission changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder and transmitted, the power transmission mechanism changes the angle of the movable swash plate of the hydraulic continuously variable transmission.Type: GrantFiled: August 5, 2016Date of Patent: February 18, 2020Assignee: YANMAR CO., LTD.Inventors: Taihei Daiyakuji, Hitoshi Nomura
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Patent number: 10351184Abstract: A working vehicle where a front axle case is supported by two front axle brackets includes a body flame formed by disposing beams at a prescribed interval, by welding reinforced plates to plate faces of the beams which face to each other, and by welding both end parts of one of the front axle brackets to the reinforced plates; and a front hitch formed by welding both end parts of the other front axle bracket to both end parts of a plate member which are bent. The front hitch is attached to the body flame such that the two front axle brackets are opposed to each other.Type: GrantFiled: September 29, 2014Date of Patent: July 16, 2019Assignee: YANMAR CO., LTD.Inventors: Masahiro Hanafusa, Taihei Daiyakuji, Terunobu Yoshioka
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Publication number: 20180231124Abstract: A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission (120), and an electric cylinder (143), and a power transmission mechanism (70). The hydraulic continuously variable transmission (120) changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder (143) is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder (143) and transmitted, the power transmission mechanism (70) changes the angle of the movable swash plate of the hydraulic continuously variable transmission (120).Type: ApplicationFiled: August 5, 2016Publication date: August 16, 2018Applicant: Yanmar Co., Ltd.Inventors: Taihei DAIYAKUJI, Hitoshi NOMURA
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Patent number: 9731754Abstract: Provided is a work vehicle in which a connection member can be prevented from coming into contact with an obstacle while the work vehicle is traveling, without restricting the layout of the work vehicle. A work vehicle in which a power steering cylinder is mounted to a front axle case, wherein in the front axle case, a support part to which the power steering cylinder is mounted by a connection member, and a protruding part that protrudes from the support part so as to conceal the connection member when viewed from the front side of the work vehicle are formed.Type: GrantFiled: September 29, 2014Date of Patent: August 15, 2017Assignee: YANMAR CO., LTD.Inventors: Masahiro Hanafusa, Taihei Daiyakuji
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Publication number: 20160272240Abstract: Provided is a work vehicle in which a connection member can be prevented from coming into contact with an obstacle while the work vehicle is traveling, without restricting the layout of the work vehicle. A work vehicle in which a power steering cylinder is mounted to a front axle case, wherein in the front axle case, a support part to which the power steering cylinder is mounted by a connection member, and a protruding part that protrudes from the support part so as to conceal the connection member when viewed from the front side of the work vehicle are formed.Type: ApplicationFiled: September 29, 2014Publication date: September 22, 2016Inventors: Masahiro HANAFUSA, Taihei DAIYAKUJI
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Publication number: 20160236730Abstract: A working vehicle where a front axle case is supported by two front axle brackets includes a body flame formed by disposing beams at a prescribed interval, by welding reinforced plates to plate faces of the beams which face to each other, and by welding both end parts of one of the front axle brackets to the reinforced plates; and a front hitch formed by welding both end parts of the other front axle bracket to both end parts of a plate member which are bent. The front hitch is attached to the body flame such that the two front axle brackets are opposed to each other.Type: ApplicationFiled: September 29, 2014Publication date: August 18, 2016Inventors: Masahiro HANAFUSA, Taihei DAIYAKUJI, Terunobu YOSHIOKA
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Patent number: 9309967Abstract: A gear shift mechanism in which operability of an operation pedals for steplessly changing gears in both forward and reverse direction, and a vehicle with the gearshift mechanism. This gearshift mechanism includes a gearshift shaft to which a pedal boss is fitted that is located on the base end side of a pedal arm of a forward pedal, an intermediate link that is connected to a pedal boss that is located on the base end side of a pedal arm of a reverse pedal via a connection member, and a link shaft to which a link boss of the intermediate link is fitted. the pedal boss of the forward pedal is fixed to the gearshift shaft and the pedal boss is unable to rotate relatively to the gearshift shaft, which a pedal boss located on the right side of the pedal boss is able to rotate relatively to the gearshift shaft.Type: GrantFiled: October 29, 2013Date of Patent: April 12, 2016Assignee: Yanmar Co., Ltd.Inventors: Keisuke Iida, Masahiro Hanafusa, Taihei Daiyakuji
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Publication number: 20150260283Abstract: A gear shift mechanism in which operability of an operation pedals for steplessly changing gears in both forward and reverse direction, and a vehicle with the gearshift mechanism. This gearshift mechanism includes a gearshift shaft to which a pedal boss is fitted that is located on the base end side of a pedal arm of a forward pedal, an intermediate link that is connected to a pedal boss that is located on the base end side of a pedal arm of a reverse pedal via a connection member, and a link shaft to which a link boss of the intermediate link is fitted. the pedal boss of the forward pedal is fixed to the gearshift shaft and the pedal boss is unable to rotate relatively to the gearshift shaft, which a pedal boss located on the right side of the pedal boss is able to rotate relatively to the gearshift shaft.Type: ApplicationFiled: October 29, 2013Publication date: September 17, 2015Inventors: Keisuke Iida, Masahiro Hanafusa, Taihei Daiyakuji