Patents by Inventor Shunichi Nakazawa
Shunichi Nakazawa 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: 9975575Abstract: A travel control section 60b is configured to control the revolution velocities of transversely opposite travel motors 51 and 52 such that when turning amount command signals are inputted from a turning amount operation dial 48, transversely opposite crawler travel devices 12a and 12b are caused to realize a turn according to the turning amount command signals by decelerating the traveling velocities of the transversely opposite crawler travel devices 12a and 12b from a target straight traveling velocity set by a travel operation lever 47 by equal values of velocity which are predetermined according to the turning amount command signals inputted from the turning amount operation dial 48 and further decelerating the traveling velocity of the crawler travel device 12a or 12b which is positioned inwardly relative to the other in the turning direction.Type: GrantFiled: September 11, 2013Date of Patent: May 22, 2018Assignee: KABUSHIKI KAISHA AICHI CORPORATIONInventors: Shunichi Nakazawa, Hiroaki Mizuguchi, Hiroshi Furusho, Akira Moriyama, Hiroshi Miyamoto
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Publication number: 20140093345Abstract: A travel control section 60b is configured to control the revolution velocities of transversely opposite travel motors 51 and 52 such that when turning amount command signals are inputted from a turning amount operation dial 48, transversely opposite crawler travel devices 12a and 12b are caused to realize a turn according to the turning amount command signals by decelerating the traveling velocities of the transversely opposite crawler travel devices 12a and 12b from a target straight traveling velocity set by a travel operation lever 47 by equal values of velocity which are predetermined according to the turning amount command signals inputted from the turning amount operation dial 48 and further decelerating the traveling velocity of the crawler travel device 12a or 12b which is positioned inwardly relative to the other in the turning direction.Type: ApplicationFiled: September 11, 2013Publication date: April 3, 2014Applicant: Kabushiki Kaisha Aichi CorporationInventors: Shunichi NAKAZAWA, Hiroaki MIZUGUCHI, Hiroshi FURUSHO, Akira MORIYAMA, Hiroshi MIYAMOTO
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Patent number: 8332089Abstract: A vehicle 1 used for work at elevated locations comprises a travel body 10, whose front wheels 11a, 11b are drive wheels, a steering cylinder 17, two travel motors 12, a battery B, an inverter IV, a travel operation lever 41, and a steering dial 42. In the vehicle, the steering cylinder 17 drives a steering mechanism 13, which directs the drive wheels 11a, 11b, to change the steering angle of the drive wheels 11a, 11b, and the travel motors 12a, 12b, which receive electric power from the battery B, respectively, drive the drive wheels 11a, 11b. The inverter IV converts DC power from the battery B to AC power, which is supply to the travel motors 12a, 12b to drive the rotation of both the drive motors. The travel operation lever 41 is operated for travel control while the steering dial 42 is operated to steer the travel body 10. The vehicle further comprises a steering control unit 53 and an inverter control unit 51.Type: GrantFiled: July 31, 2008Date of Patent: December 11, 2012Assignee: Kabushiki Kaisha Aichi CorporationInventor: Shunichi Nakazawa
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Patent number: 7957866Abstract: In a configuration in which a control is performed for actuating the steering cylinder 17 so that the steering angle of the front wheel 11a (steering wheel), which is detected by the steering angle detector 62, becomes a target steering angle which is set in accordance with an operational state of the steering dial 42, the target steering angle of the front wheel 11a (steering wheel), which is set in accordance with an operational state of the steering dial 42, is compared with a detected steering angle of the front wheel 11a, which is detected by the steering detector 62, and when the difference between the target steering angle and the detected steering angle is a predetermined value or higher, the traveling speed of the vehicle 10 is regulated so that the traveling speed of the vehicle 10 becomes a predetermined speed or lower.Type: GrantFiled: May 31, 2006Date of Patent: June 7, 2011Assignee: Kabushiki Kaisha Aichi CorporationInventors: Takaaki Oba, Shunichi Nakazawa, Futoshi Kobayashi, Yukio Yoshida, Motoaki Suda
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Publication number: 20110060488Abstract: A vehicle 1 used for work at elevated locations comprises a travel body 10, whose front wheels 11a, 11b are drive wheels, a steering cylinder 17, two travel motors 12, a battery B, an inverter IV, a travel operation lever 41, and a steering dial 42. In the vehicle, the steering cylinder 17 drives a steering mechanism 13, which directs the drive wheels 11a, 11b, to change the steering angle of the drive wheels 11a, 11b, and the travel motors 12a, 12b, which receive electric power from the battery B, respectively, drive the drive wheels 11a, 11b. The inverter IV converts DC power from the battery B to AC power, which is supply to the travel motors 12a, 12b to drive the rotation of both the drive motors. The travel operation lever 41 is operated for travel control while the steering dial 42 is operated to steer the travel body 10. The vehicle further comprises a steering control unit 53 and an inverter control unit 51.Type: ApplicationFiled: July 31, 2008Publication date: March 10, 2011Applicant: KABUSHIKI KAISHA AICHI CORPORATIONInventor: Shunichi Nakazawa
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Publication number: 20080097666Abstract: In a configuration in which a control is performed for actuating the steering cylinder 17 so that the steering angle of the front wheel 11a (steering wheel), which is detected by the steering angle detector 62, becomes a target steering angle which is set in accordance with an operational state of the steering dial 42, the target steering angle of the front wheel 11a (steering wheel), which is set in accordance with an operational state of the steering dial 42, is compared with a detected steering angle of the front wheel 11a, which is detected by the steering detector 62, and when the difference between the target steering angle and the detected steering angle is a predetermined value or higher, the traveling speed of the vehicle 10 is regulated so that the traveling speed of the vehicle 10 becomes a predetermined speed or lower.Type: ApplicationFiled: May 31, 2006Publication date: April 24, 2008Applicant: KABUSHIKI KAISHA AICHI CORPORATIONInventors: Takaaki Oba, Shunichi Nakazawa, Futoshi Kobayashi, Yukio Yoshida