Patents by Inventor Toshiyuki Miwa
Toshiyuki Miwa 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: 20230339320Abstract: This tractor includes a work machine, a control device, and an imaging unit. The control device operates as a work machine state detection unit and a display control unit. The work machine state detection unit detects a work machine state relating to the work machine. The imaging unit acquires a work image by imaging the status of work performed by the work machine. The display control unit displays simultaneously on a display device a first display area that displays the detected work machine state, and a second display area that displays the acquired work image.Type: ApplicationFiled: April 12, 2023Publication date: October 26, 2023Applicant: Yanmar Holdings Co., Ltd.Inventors: So Ueno, Toshiyuki Miwa
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Publication number: 20230329138Abstract: A tractor, which is a work vehicle, includes a control device. The control device operates as a travel control unit and a work control unit that perform work travel in a field, and a finish detection unit (detection unit) that detects a finish level of the work at each work position in the field after performing the work travel.Type: ApplicationFiled: April 8, 2023Publication date: October 19, 2023Applicant: Yanmar Holdings Co., Ltd.Inventors: So Ueno, Toshiyuki Miwa
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Patent number: 11612094Abstract: The present describes a work vehicle where an operator can, on the work vehicle side, confirm which working machine is engaged and set which working machine to engage. A tractor, to which a working machine can be mounted, is provided with: a liquid crystal panel selectably displaying an engageable working machine mounted and displaying the currently engaged working machine so as to be identifiable; an operation unit (encoder dial, enter button, and command buttons) for carrying out selection and determination operations for the working machine displayed on the liquid crystal panel; and a control device that, when a determination operation is carried out by the operation unit for a desired working machine, disengages the currently engaged working machine, and configures the working machine for which the determination operation has been carried out to be engaged.Type: GrantFiled: May 20, 2020Date of Patent: March 28, 2023Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventor: Toshiyuki Miwa
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Patent number: 11285958Abstract: This work vehicle (tractor), which is provided with an engine and an accelerator pedal capable of changing the operational state of the engine, and is configured to be free to travel by means of an operation of the accelerator pedal by an operator, is equipped with a display near an operator's seat, said display being configured to be capable of displaying a screen (travel customization screen) for selecting whether or not to allow travel in conjunction with the accelerator.Type: GrantFiled: January 15, 2020Date of Patent: March 29, 2022Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Toshiyuki Miwa, Kouhei Ogura
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Patent number: 11186170Abstract: A work vehicle according to an aspect of the present invention is configured to shift, in a transmission unit, a speed of a driving force from an engine mounted on a traveling body and to transfer the shifted driving force to a traveling unit and a work unit. The work vehicle includes: a mode shift switch that is configured to shift a maximum vehicle speed by the traveling unit or a maximum number of revolutions of the engine, the maximum vehicle speed and the maximum number of revolutions being set for each of a plurality of modes; and a work unit operation lever that is configured to be used for operating the work unit. The work unit operation lever is provided with the mode shift switch.Type: GrantFiled: November 1, 2016Date of Patent: November 30, 2021Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Kouhei Ogura, Toshiyuki Miwa, Kenta Ikenori
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Patent number: 11122728Abstract: A tractor in which a lift valve of a hydraulic system for lifting up/down a work machine is mechanically coupled to a lift lever, and conditions for an engine startup are set as follows: a reverser lever is at a neutral position thereof; a PTO (power take-off) clutch is disengaged; a seat switch is ON; and the lift lever is at a lowermost position thereof. A switch driving unit is provided on a side face of the lift lever so that the side face is orthogonal to a turning direction of the lift lever; a switch is provided so as to be opposed to the switch driving unit when the lift lever is turned to be at the lowermost position; and the lift lever at the lowermost position is detected by the switch.Type: GrantFiled: November 30, 2017Date of Patent: September 21, 2021Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Takeshi Miyazaki, Toshiyuki Miwa
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Publication number: 20210022296Abstract: Provided is a work vehicle capable of efficiently performing grass collecting work by decelerating a traveling machine body in a case where the size of a bale is large and a case where the pickup load of straw grass is large. The work vehicle includes a traveling machine body 1, a roll baler unit 2, a bale detection unit 31 configured to detect a size of the bale formed by the roll baler unit 2, a load detection unit 32 configured to detect a pickup load of straw grass in the roll baler unit 2, and a traveling control unit 17A capable of decelerating the traveling machine body 1 when a size of the bale is equal to or larger than a setting value B1 and when a pickup load is equal to or larger than a setting value L. A deceleration D2 is larger than a deceleration D1.Type: ApplicationFiled: February 26, 2019Publication date: January 28, 2021Applicant: Yanmar Power Technology Co., Ltd.Inventor: Toshiyuki Miwa
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Patent number: 10829115Abstract: A work vehicle includes an engine mounted on a traveling body including traveling wheels; a hydraulic stepless transmission that shifts a speed of the driving force from the engine; a gear shift pedal that performs an acceleration/deceleration operation of a shifted output from the hydraulic stepless transmission; and a control section that controls the engine and the hydraulic stepless transmission based on the operation amount of the gear shift pedal. When an operation on a set switch is received in a state where the gear shift pedal is pressed by a foot operation in an auto-cruise standby mode, the control section stores the vehicle speed and the number of engine revolutions in accordance with the foot operation position of the gear shift pedal and shifts to an auto-cruise mode.Type: GrantFiled: November 1, 2016Date of Patent: November 10, 2020Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Kouhei Ogura, Toshiyuki Miwa, Kenta Ikenori
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Publication number: 20200275599Abstract: The present describes a work vehicle where an operator can, on the work vehicle side, confirm which working machine is engaged and set which working machine to engage. A tractor, to which a working machine can be mounted, is provided with: a liquid crystal panel selectably displaying an engageable working machine mounted and displaying the currently engaged working machine so as to be identifiable; an operation unit (encoder dial, enter button, and command buttons) for carrying out selection and determination operations for the working machine displayed on the liquid crystal panel; and a control device that, when a determination operation is carried out by the operation unit for a desired working machine, disengages the currently engaged working machine, and configures the working machine for which the determination operation has been carried out to be engaged.Type: ApplicationFiled: May 20, 2020Publication date: September 3, 2020Inventor: Toshiyuki Miwa
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Patent number: 10721856Abstract: The objective of the present invention is to provide a work vehicle where an operator can, on the work vehicle side, confirm which working machine is engaged and set which working machine to engage. A tractor, to which a working machine can be mounted, is provided with: a liquid crystal panel selectably displaying an engageable working machine mounted and displaying the currently engaged working machine so as to be identifiable; an operation unit (encoder dial, enter button, and command buttons) for carrying out selection and determination operations for the working machine displayed on the liquid crystal panel; and a control device that, when a determination operation is carried out by the operation unit for a desired working machine, disengages the currently engaged working machine, and configures the working machine for which the determination operation has been carried out to be engaged.Type: GrantFiled: October 13, 2015Date of Patent: July 28, 2020Assignee: YANMAR CO., LTD.Inventor: Toshiyuki Miwa
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Publication number: 20200148206Abstract: This work vehicle (tractor), which is provided with an engine and an accelerator pedal capable of changing the operational state of the engine, and is configured to be free to travel by means of an operation of the accelerator pedal by an operator, is equipped with a display near an operator's seat, said display being configured to be capable of displaying a screen (travel customization screen) for selecting whether or not to allow travel in conjunction with the accelerator.Type: ApplicationFiled: January 15, 2020Publication date: May 14, 2020Inventors: Toshiyuki MIWA, Kouhei OGURA
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Patent number: 10543843Abstract: This work vehicle (tractor), which is provided with an engine and an accelerator pedal capable of changing the operational state of the engine, and is configured to be free to travel by means of an operation of the accelerator pedal by an operator, is equipped with a display near an operator's seat, said display being configured to be capable of displaying a screen (travel customization screen) for selecting whether or not to allow travel in conjunction with the accelerator.Type: GrantFiled: October 15, 2015Date of Patent: January 28, 2020Assignee: YANMAR CO., LTD.Inventors: Toshiyuki Miwa, Kouhei Ogura
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Patent number: 10486697Abstract: A work vehicle including: a hydraulic stepless transmission that shifts a speed of a driving force from an engine; a gear shift pedal that performs an acceleration/deceleration operation of a shifted output from the hydraulic stepless transmission; a control section that controls the engine and the hydraulic stepless transmission based on an operation amount of the gear shift pedal; and acceleration/deceleration switches that increase and reduce a vehicle speed in performing an auto-cruise mode. The control section stores a set maximum vehicle speed. In a case where the acceleration/deceleration switches are operated in the auto-cruise mode, the control section increases and reduces the vehicle speed stored in shifting to the auto-cruise mode based on the amount of change in accordance with the maximum vehicle speed.Type: GrantFiled: November 1, 2016Date of Patent: November 26, 2019Assignee: YANMAR CO., LTD.Inventors: Kouhei Ogura, Toshiyuki Miwa, Kenta Ikenori
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Publication number: 20190320573Abstract: A tractor in which a lift valve of a hydraulic system for lifting up/down a work machine is mechanically coupled to a lift lever, and conditions for an engine startup are set as follows: a reverser lever is at a neutral position thereof; a PTO (power take-off) clutch is disengaged; a seat switch is ON; and the lift lever is at a lowermost position thereof. A switch driving unit is provided on a side face of the lift lever so that the side face is orthogonal to a turning direction of the lift lever; a switch is provided so as to be opposed to the switch driving unit when the lift lever is turned to be at the lowermost position; and the lift lever at the lowermost position is detected by the switch.Type: ApplicationFiled: November 30, 2017Publication date: October 24, 2019Applicant: Yanmar Co., Ltd.Inventors: Takeshi MIYAZAKI, Toshiyuki MIWA
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Patent number: 10378414Abstract: A work vehicle accurately informs an operator of necessity of a regeneration operation and the manner thereof, and specific information on the regeneration operation. The work vehicle comprises a meter panel including: a regeneration operation indicator that indicates a state where the regeneration operation is necessary or a state where the regeneration operation is being performed, an alert indicator that indicates abnormality of the work vehicle, and a first display device that displays information on the regeneration operation. When the regeneration operation is necessary, the regeneration operation indicator, or the regeneration operation indicator and the alert indicator blink, and the first display device displays information on an operation necessary for performing the regeneration operation.Type: GrantFiled: October 26, 2015Date of Patent: August 13, 2019Assignee: YANMAR CO., LTD.Inventors: Dai Uehara, Toshiyuki Miwa
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Publication number: 20180326845Abstract: A work vehicle (1) according to an aspect of the present invention is configured to shift, in a transmission unit (17), a speed of a driving force from an engine (5) mounted on a traveling body (2) and to transfer the shifted driving force to a traveling unit (3, 4) and a work unit (70). The work vehicle (1) includes: a mode shift switch (303) that is configured to shift a maximum vehicle speed by the traveling unit (3, 4) or a maximum number of revolutions of the engine (5), the maximum vehicle speed and the maximum number of revolutions being set for each of a plurality of modes; and a work unit operation lever (51) that is configured to be used for operating the work unit (70). The work unit operation lever (51) is provided with the mode shift switch (303).Type: ApplicationFiled: November 1, 2016Publication date: November 15, 2018Applicant: Yanmar Co., Ltd.Inventors: Kouhei OGURA, Toshiyuki MIWA, Kenta IKENORI
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Publication number: 20180319398Abstract: A work vehicle (1) including: a hydraulic stepless transmission (500) that shifts a speed of a driving force from an engine (5); a gear shift pedal (41) that performs an acceleration/deceleration operation of a shifted output from the hydraulic stepless transmission (500); a control section (813) that controls the engine (5) and the hydraulic stepless transmission (500) based on an operation amount of the gear shift pedal (41); and acceleration/deceleration switches (65b, 65c) that increase and reduce a vehicle speed in performing an auto-cruise mode. The control section (813) stores a set maximum vehicle speed. In a case where the acceleration/deceleration switches (65b, 65c) are operated in the auto-cruise mode, the control section (813) increases and reduces the vehicle speed stored in shifting to the auto-cruise mode based on the amount of change in accordance with the maximum vehicle speed.Type: ApplicationFiled: November 1, 2016Publication date: November 8, 2018Applicant: Yanmar Co., Ltd.Inventors: Kouhei OGURA, Toshiyuki MIWA, Kenta IKENORI
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Publication number: 20170260890Abstract: A work vehicle accurately informs an operator of necessity of a regeneration operation and the manner thereof, and specific information on the regeneration operation. The work vehicle comprises a meter panel including: a regeneration operation indicator that indicates a state where the regeneration operation is necessary or a state where the regeneration operation is being performed, an alert indicator that indicates abnormality of the work vehicle, and a first display device that displays information on the regeneration operation. When the regeneration operation is necessary, the regeneration operation indicator, or the regeneration operation indicator and the alert indicator blink, and the first display device displays information on an operation necessary for performing the regeneration operation.Type: ApplicationFiled: October 26, 2015Publication date: September 14, 2017Inventors: Dai UEHARA, Toshiyuki MIWA
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Publication number: 20170240175Abstract: This work vehicle (tractor), which is provided with an engine and an accelerator pedal capable of changing the operational state of the engine, and is configured to be free to travel by means of an operation of the accelerator pedal by an operator, is equipped with a display near an operator's seat, said display being configured to be capable of displaying a screen (travel customization screen) for selecting whether or not to allow travel in conjunction with the accelerator.Type: ApplicationFiled: October 15, 2015Publication date: August 24, 2017Inventors: Toshiyuki MIWA, Kouhei OGURA
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Publication number: 20170231148Abstract: The objective of the present invention is to provide a work vehicle where an operator can, on the work vehicle side, confirm which working machine is engaged and set which working machine to engage. A tractor, to which a working machine can be mounted, is provided with: a liquid crystal panel selectably displaying an engageable working machine mounted and displaying the currently engaged working machine so as to be identifiable; an operation unit (encoder dial, enter button, and command buttons) for carrying out selection and determination operations for the working machine displayed on the liquid crystal panel; and a control device that, when a determination operation is carried out by the operation unit for a desired working machine, disengages the currently engaged working machine, and configures the working machine for which the determination operation has been carried out to be engaged.Type: ApplicationFiled: October 13, 2015Publication date: August 17, 2017Inventor: Toshiyuki MIWA