Patents by Inventor Takafumi Mitsui
Takafumi Mitsui 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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Patent number: 12144284Abstract: A combine harvester includes a threshing device 4 configured to perform a threshing process of threshing reaped grain culm in a threshing chamber 23, in which the threshing chamber 23 includes a threshing cylinder 31 configured to rotate around a front-rear axis X, and an arc-shaped receiving net 32 provided extending along an outer circumferential portion of the threshing cylinder 31, and a top plate 30 covering an upper portion of the threshing chamber 23 is supported detachably along the rotation axis direction of the threshing cylinder 31.Type: GrantFiled: July 30, 2019Date of Patent: November 19, 2024Assignee: Kubota CorporationInventors: Takafumi Mitsui, Yusaku Yoshida, Yosuke Sakiyama, Fumisato Nakagawa, Yoshiaki Inoue, Norifumi Takamatsu, Kosaku Noguchi, Ryohei Higashitaki, Toshinari Nishimura
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Publication number: 20240268271Abstract: A combine includes a sorter 2B including a sieve case 23 drivable to swing; a first chaff sieve 27 held by the sieve case 23 and configured to receive a processing target falling through a receiver net 8 and sort the processing target; a second chaff sieve 28 held by the sieve case 23 in such a manner as to coincide with the first chaff sieve 27 in the front-back direction relative to the sorter 2B and configured to receive a processing target falling through the first chaff sieve 27 and sort the processing target; and a winnowing fan 29 configured to blow sorting air along the first and second chaff sieves 27 and 28.Type: ApplicationFiled: June 7, 2022Publication date: August 15, 2024Inventors: Takafumi Mitsui, Toshinari Nishimura
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Publication number: 20240268270Abstract: In a combine, each of a plurality of dust-sending valves 30B includes a first dust-sending member 31 provided in an upper portion of a threshing chamber 16 in a state of extending in a left-right direction of a threshing chamber and in a state in which a sending angle is changeable by swinging, and a second dust-sending member 32 provided in a state of being fixed to a position located on an upstream side in a rotation direction of a threshing cylinder with respect to the first dust-sending member 31 such that a sending angle is not changeable. A portion of a top plate 19 facing the second dust-sending member 32 has an arc shape as viewed in a direction along a rotation axis P of a threshing cylinder 20.Type: ApplicationFiled: June 7, 2022Publication date: August 15, 2024Inventors: Takafumi Mitsui, Toshinari Nishimura
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Patent number: 11917947Abstract: Provided is a threshing cylinder with a threshing processing section provided on the rear side of a raking section. In the threshing processing section, a front support member, an intermediate support member, and a rear support member are supported by a threshing cylinder support shaft. A plurality of front-side divided threshing teeth support members are supported by the front support member and the intermediate support member in a state in which the front-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section. A plurality of rear-side divided threshing teeth support members are supported by the intermediate support member and the rear support member in a state in which the rear-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section.Type: GrantFiled: May 15, 2019Date of Patent: March 5, 2024Assignee: Kubota CorporationInventors: Takafumi Mitsui, Fumisato Nakagawa, Toshinari Nishimura, Tsuyoshi Kumatori
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Publication number: 20230247943Abstract: A first threshing section 15 and a second threshing section 16 are provided. The first threshing section 15 includes a first threshing drum 17 that rotates about a left-right-oriented axis, and the second threshing section 16 includes a second threshing drum 28 that rotates about a body front-rear-oriented axis. The second threshing drum 28 includes a rotary support shaft 29 extending along a front-rear direction, a plurality of rod-shaped frame bodies 30 that are arranged side by side extending along the front-rear direction and at and interval in the peripheral direction, radially outward of the rotary support shaft 29, and threshing teeth 31 attached to the frame bodies 30.Type: ApplicationFiled: June 30, 2021Publication date: August 10, 2023Inventor: Takafumi Mitsui
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Publication number: 20230210056Abstract: The threshing apparatus 6 includes a threshing chamber 11 into which the crops are introduced, a threshing drum 12 that is provided in the threshing chamber 11 so as to rotate with the threshing drum axial center in the front-rear direction of the threshing chamber 11 serving as the rotation center, and which threshes the crops introduced into the threshing chamber 11, and a receiving net 13 provided in the outer periphery of the lower part of the threshing drum 12. The receiving net 13 is divided into a plurality of divided receiving net bodies 13A in the front-rear direction, the plurality of divided receiving net bodies 13A are operated to adjust, for each of the plurality of divided receiving net bodies, the interval S in the radial direction of the threshing drum 12 between the divided receiving net body 13A and the threshing drum 12.Type: ApplicationFiled: July 1, 2021Publication date: July 6, 2023Inventor: Takafumi Mitsui
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Patent number: 11559001Abstract: A combine harvester is provided with left and right main frames that extend in the front-rear direction of a vehicle body, and a threshing device installed between the left and right main frames. The threshing device is provided with a threshing unit that performs a grain removal process, and a sorting unit that is provided below the threshing unit and performs a sorting process of sorting processed articles after the grain removal process has been performed by the threshing unit. A threshing frame included in the threshing unit is mounted on and supported by the left and right main frames, and a sorting unit frame included in the sorting unit is suspended from and supported by the left and right main frames.Type: GrantFiled: October 25, 2017Date of Patent: January 24, 2023Assignee: Kubota CorporationInventors: Takafumi Mitsui, Mamoru Shinya, Hiroaki Matsushita, Takahiro Uchi
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Publication number: 20220264796Abstract: A combine includes a threshing device and a grain tank that is located above the threshing device and stores threshed grain. A threshing cylinder 31 is located in a threshing chamber and rotates about a front-rear axis, and an arc-shaped receiving net extends along an outer circumferential portion of the threshing cylinder 31. A raking unit 33 is located in a front portion of the threshing cylinder 31 and rakes in reaped culm, and a threshing processing unit 34 is located rearward of the raking unit 33 in the threshing cylinder 31 and threshes the reaped culm. A top plate 30 includes a portion that extends from a location corresponding to an upper portion of the raking unit 33 to a location corresponding to an upper portion of the threshing processing unit 34 and that is removable from a main body portion of the threshing device in a body-rearward direction.Type: ApplicationFiled: July 30, 2020Publication date: August 25, 2022Inventors: Yoshiaki Inoue, Takafumi Mitsui, Tsuyoshi Kumatori, Toshinari Nishimura, Takahiro Ohira
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Publication number: 20220264803Abstract: A threshing apparatus includes: a threshing unit 5; a first sorting unit 11 that is arranged below the threshing unit 5, is driven to reciprocate along the front-rear direction, and threshes processed material from the threshing unit 5; and a second sorting unit 12 that is arranged below the first sorting unit 11, is driven to reciprocate along the front-rear direction, and threshes processed material from the first sorting unit 11. The front end portion of the second sorting unit 12 is provided with a second grain pan 22 that conveys processed material rearward, and the front end portion of the second grain pan 22 is also provided with a wall portion 48 that is higher than the second grain pan 22 in order to be able to prevent processed material from falling forward from the second grain pan 22.Type: ApplicationFiled: July 29, 2020Publication date: August 25, 2022Inventors: Takafumi Mitsui, Shuya Ueda, Hiroki Hashimoto, Yoshiaki Inoue, Tsuyoshi Kumatori, Toshinari Nishimura
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Publication number: 20210368679Abstract: A combine harvester includes a threshing device 4 configured to perform a threshing process of threshing reaped grain culm in a threshing chamber 23, in which the threshing chamber 23 includes a threshing cylinder 31 configured to rotate around a front-rear axis X, and an arc-shaped receiving net 32 provided extending along an outer circumferential portion of the threshing cylinder 31, and a top plate 30 covering an upper portion of the threshing chamber 23 is supported detachably along the rotation axis direction of the threshing cylinder 31.Type: ApplicationFiled: July 30, 2019Publication date: December 2, 2021Inventors: Takafumi Mitsui, Yusaku Yoshida, Yosuke Sakiyama, Fumisato Nakagawa, Yoshiaki Inoue, Norifumi Takamatsu, Kosaku Noguchi, Ryohei Higashitaki, Toshinari Nishimura
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Publication number: 20210212260Abstract: Provided is a threshing cylinder with threshing processing section provided on the rear side of a raking section. In the threshing processing section, a front support member, an intermediate support member, and a rear support member are supported by a threshing cylinder support shaft. A plurality of front-side divided threshing teeth support members are supported by the front support member and the intermediate support member in a state in which the front-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section. A plurality of rear-side divided threshing teeth support members are supported by the intermediate support member and the rear support member in a state in which the rear-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section.Type: ApplicationFiled: May 15, 2019Publication date: July 15, 2021Inventors: Takafumi Mitsui, Fumisato Nakagawa, Toshinari Nishimura, Tsuyoshi Kumatori
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Publication number: 20210185931Abstract: A combine harvester is provided with left and right main frames that extend in the front-rear direction of a vehicle body, and a threshing device installed between the left and right main frames. The threshing device is provided with a threshing unit that performs a grain removal process, and a sorting unit that is provided below the threshing unit and performs a sorting process of sorting processed articles after the grain removal process has been performed by the threshing unit. A threshing frame included in the threshing unit is mounted on and supported by the left and right main frames, and a sorting unit frame included in the sorting unit is suspended from and supported by the left and right main frames.Type: ApplicationFiled: October 25, 2017Publication date: June 24, 2021Inventors: Takafumi Mitsui, Mamoru Shinya, Hiroaki Matsushita, Takahiro Uchi