Patents by Inventor Nobumi Toyoura
Nobumi Toyoura 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: 8028787Abstract: To provide a work machine in which traveling devices and an implement device can be operated by common operating levers, wherein switching operation is easy and a changeover is easily confirmed. Inside a cab of the work machine, there are provided travel pedals, with which the traveling devices can be operated, and operating levers, with which the traveling devices and the implement device can be operated. A changeover switch is provided on a console positioned in the vicinity of one side of an operating sheet. The changeover switch switches over between a traveling mode, in which traveling operation is possible by the operating levers, and a work mode, in which implement operation is possible by the operating levers.Type: GrantFiled: August 29, 2006Date of Patent: October 4, 2011Assignee: Caterpillar S.A.R.L.Inventors: Eiji Akahane, Christopher Michael Burton, Nobumi Toyoura, Shigeru Kojima, Masayuki Takano
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Patent number: 7854291Abstract: In a work machine equipped with a switchover means enabling selective operation of traveling devices and a work device by means of common operating levers, switchover can easily be performed and also easily recognized. In a work machine having traveling devices and a work device, operating levers that are capable of operating the traveling devices and the work device are respectively disposed at the sides of an operating seat. A foot switch connected to a controller is disposed in the proximity of and operable with a foot of an operator seated at the operating seat. While the foot switch is being operated with the foot, the traveling devices are operated by the operating levers through the controller. While the foot switch is not being operated, the work device is operated by means of the operating levers through the controller.Type: GrantFiled: September 20, 2006Date of Patent: December 21, 2010Assignee: Caterpillar S.A.R.L.Inventors: Eiji Akahane, Nobumi Toyoura, Shigeru Kojima, Masayuki Takano
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Publication number: 20100000367Abstract: In a work machine equipped with a switchover means enabling selective operation of traveling devices and a work device by means of common operating levers, switchover can easily be performed and also easily recognized. In a work machine having traveling devices and a work device, operating levers that are capable of operating the traveling devices and the work device are respectively disposed at the sides of an operating seat. A foot switch connected to a controller is disposed in the proximity of and operable with a foot of an operator seated at the operating seat. While the foot switch is being operated with the foot, the traveling devices are operated by the operating levers through the controller. While the foot switch is not being operated, the work device is operated by means of the operating levers through the controller.Type: ApplicationFiled: September 20, 2006Publication date: January 7, 2010Applicant: SHIN CATERPILLAR MITSUBISHI LTD.Inventors: Eiji Akahane, Nobumi Toyoura, Shigeru Kojima, Massayuki Takano
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Publication number: 20090048743Abstract: To provide a work machine in which traveling devices and an implement device can be operated by common operating levers, wherein switching operation is easy and a changeover is easily confirmed. Inside a cab of the work machine, there are provided travel pedals, with which the traveling devices can be operated, and operating levers, with which the traveling devices and the implement device can be operated. A changeover switch is provided on a console positioned in the vicinity of one side of an operating sheet. The changeover switch switches over between a traveling mode, in which traveling operation is possible by the operating levers, and a work mode, in which implement operation is possible by the operating levers.Type: ApplicationFiled: August 29, 2006Publication date: February 19, 2009Applicant: Shin Caterpillar Mitsubishi Ltd.Inventors: Eiji Akahane, Christopher Michael Burton, Nobumi Toyoura, Shigeru Kojima, Masayuki Takano
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Patent number: 7275368Abstract: The invention is a fan revolution control method for controlling a pump-motor system, by controlling the fan revolution speed of a cooling fan adapted to be rotated by a fan motor to cool cooling target fluids. The pump-motor system drives the fan motor by a hydraulic fluid fed from a fan pump driven by an engine. The pump-motor system is controlled so the fan revolution speed starts from the minimum fan revolution speed when the engine is started up; the minimum fan revolution speed is maintained for at least several seconds; after the elapse of several seconds, the fan revolution speed is gradually increased from the minimum fan revolution speed. The fan revolution speed reaches a target fan revolution speed over a period of at least several seconds. The method prevents generation of peak pressure or pressure hunting.Type: GrantFiled: March 18, 2004Date of Patent: October 2, 2007Assignee: Shin Caterpillar Mitsubishi Ltd.Inventors: Hideto Furuta, Nobumi Toyoura, Kazushige Okamoto
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Publication number: 20050254959Abstract: The invention is a fan revolution control method for controlling a pump-motor system, by controlling the fan revolution speed of a cooling fan adapted to be rotated by a fan motor to cool cooling target fluids. The pump-motor system drives the fan motor by a hydraulic fluid fed from a fan pump driven by an engine. The pump-motor system is controlled so the fan revolution speed starts from the minimum fan revolution speed when the engine is started up; the minimum fan revolution speed is maintained for at least several seconds; after the elapse of several seconds, the fan revolution speed is gradually increased from the minimum fan revolution speed. The fan revolution speed reaches a target fan revolution speed over a period of at least several seconds. The method prevents generation of peak pressure or pressure hunting.Type: ApplicationFiled: March 18, 2004Publication date: November 17, 2005Applicant: SHIN CATERPILLAR MITSUBISHI LTD.Inventors: Hideto Furuta, Nobumi Toyoura