Patents by Inventor Kyouji Uranaka
Kyouji Uranaka 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: 10343510Abstract: A dump truck includes: a vehicle body frame; a body supported by the vehicle body frame and configured to be raised or lowered; a plurality of tires provided to the vehicle body frame; an electric motor configured to drive the tires; and a cooling blower configured to feed a cooling air to the electric motor, in which the vehicle body frame at least partially includes a hollow part, and the hollow part defines a duct through which the cooling air passes.Type: GrantFiled: February 27, 2014Date of Patent: July 9, 2019Assignee: Komatsu Ltd.Inventors: Kyouji Uranaka, Takeo Ootsuka, Tomoko Jinno
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Patent number: 10155543Abstract: A dump truck includes: a vehicle body frame; tires provided to the vehicle body frame and configured to travel the dump truck; and a body supported by the vehicle body frame and configured to be raised and lowered, in which the vehicle body frame includes: a first vertical frame vertically standing in a side view at positions of the tires provided to a first side of the vehicle body frame in a travel direction; and a second vertical frame vertically standing in a side view at positions of the tires provided to a second side of the vehicle body frame in the travel direction, and a mount portion on which the body is mounted is provided on an upper portion of each of the first vertical frame and the second vertical frame.Type: GrantFiled: February 27, 2014Date of Patent: December 18, 2018Inventors: Kyouji Uranaka, Takeo Ootsuka, Kouichi Okamoto
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Patent number: 9889882Abstract: A dump truck includes a suspension and a steering mechanism. The suspension includes: a suspension arm in a form of an upper arm having an up-and-down movable proximal end supported on a vehicle body frame; and a tire support in a form of a casing rotatably attached to a distal end of the upper arm. The steering mechanism includes a steering cylinder having a proximal end attached to the upper arm and a distal end attached to a knuckle arm provided to the tire support.Type: GrantFiled: February 27, 2014Date of Patent: February 13, 2018Assignee: Komatsu Ltd.Inventors: Kyouji Uranaka, Taiga Sasaki, Kouichi Okamoto, Takeo Ootsuka
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Patent number: 9868343Abstract: A dump truck includes: a vehicle body frame; a body supported by the vehicle body frame and configured to be raised or lowered; a plurality of tires provided to the vehicle body frame via a suspension; and a driving unit in a form of an electric motor configured to drive the tires, in which the vehicle body frame includes: supports respectively supporting an upper arm and a lower arm of a suspension arm of the suspension; and a hollow part at least partially in the vicinity of the supports, and the electric motor is fixed to the vehicle body frame while being housed in the hollow part of the vehicle body frame and supported by an inner surface of the hollow part.Type: GrantFiled: February 27, 2014Date of Patent: January 16, 2018Assignee: Komatsu Ltd.Inventors: Kyouji Uranaka, Takeo Ootsuka, Taiga Sasaki
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Patent number: 9783041Abstract: A dump truck includes: a vehicle body frame extending in a travel direction; cooled objects in a form of an engine and an aftercooler; a first radiator and a second radiator configured to exchange heat between a cooling air and a cooling water after cooling the engine and the aftercooler, in which the first radiator is disposed to an outside of a first of the vehicle body frame in a vehicle width direction and the second radiator is disposed to an outside of a second side of the vehicle body frame in the vehicle width direction.Type: GrantFiled: February 27, 2014Date of Patent: October 10, 2017Assignee: Komatsu Ltd.Inventors: Kyouji Uranaka, Tatsuya Maeda, Tomoko Jinno
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Patent number: 9643527Abstract: A suspension of a dump truck includes: an upper arm and a lower arm each having a proximal end supported on a vehicle body frame and configured to be up-and-down pivotally movable; a tire support in a form of a casing having an upper portion rotatably connected to a distal end of the upper arm and a lower portion rotatably connected to a distal end of the lower arm; and a suspension cylinder having an upper end rotatably connected to the vehicle body frame and a lower end rotatably connected to the upper arm, in which a king pin shaft connecting a rotation center of the upper arm and the casing with a rotation center of the lower arm and the casing intersects with an axial line of the suspension cylinder in the vicinity of a connecting portion of the upper arm and the casing.Type: GrantFiled: February 27, 2014Date of Patent: May 9, 2017Assignee: Komatsu Ltd.Inventors: Kyouji Uranaka, Kouichi Okamoto, Taiga Sasaki
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Publication number: 20170066318Abstract: A dump truck includes: a vehicle body frame; tires provided to the vehicle body frame and configured to travel the dump truck; and a body supported by the vehicle body frame and configured to be raised and lowered, in which the vehicle body frame includes: a first vertical frame vertically standing in a side view at positions of the tires provided to a first side of the vehicle body frame in a travel direction; and a second vertical frame vertically standing in a side view at positions of the tires provided to a second side of the vehicle body frame in the travel direction, and a mount portion on which the body is mounted is provided on an upper portion of each of the first vertical frame and the second vertical frame.Type: ApplicationFiled: February 27, 2014Publication date: March 9, 2017Inventors: Kyouji Uranaka, Takeo Ootsuka, Tomoko Jinno
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Publication number: 20170066480Abstract: A dump truck includes: a vehicle body frame; tires provided to the vehicle body frame and configured to travel the dump truck; and a body supported by the vehicle body frame and configured to be raised and lowered, in which the vehicle body frame includes: a first vertical frame vertically standing in a side view at positions of the tires provided to a first side of the vehicle body frame in a travel direction; and a second vertical frame vertically standing in a side view at positions of the tires provided to a second side of the vehicle body frame in the travel direction, and a mount portion on which the body is mounted is provided on an upper portion of each of the first vertical frame and the second vertical frame.Type: ApplicationFiled: February 27, 2014Publication date: March 9, 2017Inventors: Kyouji Uranaka, Takeo Ootsuka, Kouichi Okamoto
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Publication number: 20170015167Abstract: A suspension of a dump truck includes: an upper arm and a lower arm each having a proximal end supported on a vehicle body frame and configured to be up-and-down pivotally movable; a tire support in a form of a casing having an upper portion rotatably connected to a distal end of the upper arm and a lower portion rotatably connected to a distal end of the lower arm; and a suspension cylinder having an upper end rotatably connected to the vehicle body frame and a lower end rotatably connected to the upper arm, in which a king pin shaft connecting a rotation center of the upper arm and the casing with a rotation center of the lower arm and the casing intersects with an axial line of the suspension cylinder in the vicinity of a connecting portion of the upper arm and the casing.Type: ApplicationFiled: February 27, 2014Publication date: January 19, 2017Inventors: Kyouji Uranaka, Kouichi Okamoto, Taiga Sasaki
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Publication number: 20170015185Abstract: A dump truck includes: a vehicle body frame; a body supported by the vehicle body frame and configured to be raised or lowered; a plurality of tires provided to the vehicle body frame via a suspension; and a driving unit in a form of an electric motor configured to drive the tires, in which the vehicle body frame includes: supports respectively supporting an upper arm and a lower arm of a suspension arm of the suspension; and a hollow part at least partially in the vicinity of the supports, and the electric motor is fixed to the vehicle body frame while being housed in the hollow part of the vehicle body frame and supported by an inner surface of the hollow part.Type: ApplicationFiled: February 27, 2014Publication date: January 19, 2017Inventors: Kyouji Uranaka, Takeo Ootsuka, Taiga Sasaki
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Publication number: 20170015352Abstract: A dump truck includes a suspension and a steering mechanism. The suspension includes: a suspension arm in a form of an upper arm having an up-and-down movable proximal end supported on a vehicle body frame; and a tire support in a form of a casing rotatably attached to a distal end of the upper arm. The steering mechanism includes a steering cylinder having a proximal end attached to the upper arm and a distal end attached to a knuckle arm provided to the tire support.Type: ApplicationFiled: February 27, 2014Publication date: January 19, 2017Inventors: Kyouji Uranaka, Taiga Sasaki, Kouichi Okamoto, Takeo Ootsuka
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Publication number: 20170008386Abstract: A dump truck includes: a vehicle body frame extending in a travel direction; cooled objects in a form of an engine and an aftercooler; a first radiator and a second radiator configured to exchange heat between a cooling air and a cooling water after cooling the engine and the aftercooler, in which the first radiator is disposed to an outside of a first of the vehicle body frame in a vehicle width direction and the second radiator is disposed to an outside of a second side of the vehicle body frame in the vehicle width direction.Type: ApplicationFiled: February 27, 2014Publication date: January 12, 2017Inventors: Kyouji Uranaka, Tatsuya Maeda, Tomoko Jinno
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Patent number: 8721006Abstract: A dump body includes a front plate, a bottom plate integrally provided on a lower part of the front plate, and a pair of right and left side plates provided on sides of the front plate and the bottom plate. On a lower part of an outer surface of the front plate, a linear hollow lower rib extending in a right-left direction and a pair of right and left vertical ribs that are in communication with the lower rib at lower ends thereof are provided. An exhaust gas flow path of an exhaust gas is defined including an inner space of the lower rib and an inner space of the vertical ribs. The exhaust gas flow path is in communication a flow-path forming section of a box shape that allows the exhaust gas flowing in the exhaust gas flow path to go downward relative to the lower rib.Type: GrantFiled: July 3, 2012Date of Patent: May 13, 2014Assignee: Komatsu Ltd.Inventor: Kyouji Uranaka
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Publication number: 20130187435Abstract: A dump body includes a front plate, a bottom plate integrally provided on a lower part of the front plate, and a pair of right and left side plates provided on sides of the front plate and the bottom plate. On a lower part of an outer surface of the front plate, a linear hollow lower rib extending in a right-left direction and a pair of right and left vertical ribs that are in communication with the lower rib at lower ends thereof are provided. An exhaust gas flow path of an exhaust gas is defined including an inner space of the lower rib and an inner space of the vertical ribs. The exhaust gas flow path is in communication a flow-path forming section of a box shape that allows the exhaust gas flowing in the exhaust gas flow path to go downward relative to the lower rib.Type: ApplicationFiled: July 3, 2012Publication date: July 25, 2013Applicant: KOMATSU LTD.Inventor: Kyouji Uranaka
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Patent number: 8407994Abstract: A rotation control system of a hoist pump includes: the hoist pump (3); an engine (2) for driving the hoist pump (3); a working equipment driven by a hydraulic cylinder that is extendable by hydraulic oil delivered through the hoist pump (3); a hydraulic oil tank that stores the hydraulic oil supplied to the hoist pump (3) and receives the hydraulic oil returned from the hydraulic cylinder; and a controller (9) that controls a rotation speed of the hoist pump (3) to be an allowable rotation speed that is set in advance for preventing cavitation while the hydraulic cylinder is operated.Type: GrantFiled: February 21, 2008Date of Patent: April 2, 2013Assignee: Komatsu Ltd.Inventors: Yasuhiro Kamoshida, Kyouji Uranaka, Masaru Shizume
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Publication number: 20100058752Abstract: A rotation control system of a hoist pump includes: the hoist pump (3); an engine (2) for driving the hoist pump (3); a working equipment driven by a hydraulic cylinder that is extendable by hydraulic oil delivered through the hoist pump (3); a hydraulic oil tank that stores the hydraulic oil supplied to the hoist pump (3) and receives the hydraulic oil returned from the hydraulic cylinder; and a controller (9) that controls a rotation speed of the hoist pump (3) to be an allowable rotation speed that is set in advance for preventing cavitation while the hydraulic cylinder is operated.Type: ApplicationFiled: February 21, 2008Publication date: March 11, 2010Inventors: Yasuhiro Kamoshida, Kyouji Uranaka, Masaru Shizume
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Patent number: 6988591Abstract: A mine transportation management system capable of reducing cost by reducing the number of transportation vehicles is provided. For this purpose, the system includes a plurality of self-propelled vehicles and a plurality of vessels each having a communication section, and each being identifiable, which are connectable to and separable from each other. A loading machine having a communication section, which loads an object into at least one of the vessels. A management center, which has a communication section, selects a vessel to be transported and selects a self-propelled vehicle for transporting the selected vessel based on a transportation demand signal from a processing facility, and transmits a transportation command signal to the selected self-propelled vehicle to connect to the selected vessel and to travel to the processing facility.Type: GrantFiled: August 5, 2003Date of Patent: January 24, 2006Assignee: Komatsu Ltd.Inventors: Kyouji Uranaka, Satoshi Ogawa, Koichi Okamoto, Takao Nagai
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Patent number: 6789639Abstract: To provide a carrier vehicle capable of restraining an increase in cost of a power train, the carrier vehicle is constructed by front axles provided respectively steerably on left and right sides of a front portion of the vehicle and mounted with wheels, a first engine provided at the front portion of the vehicle, a first drive axle provided at a middle portion of the vehicle and mounted with wheels at both left and right ends thereof, a first transmission, a second drive axle provided at a rear portion of the vehicle and mounted with wheels at both left and right ends thereof, a second engine provided at the rear portion of the vehicle and on an upper side of the second drive axle, and a second transmission provided to connect to a front side of the second engine.Type: GrantFiled: August 21, 2003Date of Patent: September 14, 2004Assignee: Komatsu Ltd.Inventors: Kyouji Uranaka, Satoshi Ogawa, Koichi Okamoto, Takao Nagai
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Publication number: 20040060755Abstract: To provide a carrier vehicle capable of restraining an increase in cost of a power train, the carrier vehicle is constructed by front axles provided respectively steerably on left and right sides of a front portion of the vehicle and mounted with wheels, a first engine provided at the front portion of the vehicle, a first drive axle provided at a middle portion of the vehicle and mounted with wheels at both left and right ends thereof, a first transmission, a second drive axle provided at a rear portion of the vehicle and mounted with wheels at both left and right ends thereof, a second engine provided at the rear portion of the vehicle and on an upper side of the second drive axle, and a second transmission provided to connect to a front side of the second engine.Type: ApplicationFiled: August 21, 2003Publication date: April 1, 2004Inventors: Kyouji Uranaka, Satoshi Ogawa, Koichi Okamoto, Takao Nagai
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Publication number: 20040040792Abstract: A mine transportation management system capable of reducing cost by reducing the number of transportation vehicles is provided. For this purpose, the system includes a plurality of self-propelled vehicles and a plurality of vessels each having communication means, being identifiable, connectable to and separable from each other, a loading machine having communication means, a processing facility, and a management center having communication means. The management center selects a vessel to be transported and selects a self-propelled vehicle for transporting the selected vessel based on a transportation demand signal from the processing facility, and transmits a transportation command signal to the selected self-propelled vehicle to connect to the selected vessel and travel to the processing facility.Type: ApplicationFiled: August 5, 2003Publication date: March 4, 2004Applicant: KOMATSU LTD.Inventors: Kyouji Uranaka, Satoshi Ogawa, Koichi Okamoto, Takao Nagai