Patents by Inventor Kenzo Ushiro
Kenzo Ushiro 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).
-
Publication number: 20220377965Abstract: A tractor includes a link mechanism and a power extractor. The link mechanism includes a top link, a right lower link, and a left lower link. A work apparatus is connectable to the link mechanism to move the work apparatus upward and downward. The power extractor is connectable to a power input of the work apparatus to take power from a power source and supply the power to the work apparatus. The power extractor is located at a position lower than a lowest position of the right lower link and a lowest position of the left lower link.Type: ApplicationFiled: May 26, 2022Publication date: December 1, 2022Inventors: Kumiko KOBAYASHI, Kenzo USHIRO, Sadao YAMANAKA
-
Publication number: 20220203803Abstract: A work vehicle includes a driver section including a driver seat, an air conditioner, and a duct to supply conditioned air from the air conditioner. The air conditioner is below an upper end of the driver seat. The duct includes a vertical portion extending upward from the air conditioner and rearward of the driver seat, and a horizontal portion extending from an upper end portion of the vertical portion to a position forward of the driver in the driver seat in a side view. The duct includes, at a portion forward of the driver, an outlet to blow conditioned air toward the driver.Type: ApplicationFiled: December 6, 2021Publication date: June 30, 2022Inventors: Ryosuke Tanaka, Kenzo Ushiro
-
Publication number: 20220204098Abstract: A work vehicle is provided with a body, a driver section and an air conditioner, and the air conditioner is supported by the body and located on a side of the body.Type: ApplicationFiled: December 10, 2021Publication date: June 30, 2022Inventors: Kumiko KOBAYASHI, Kunihiko NISHINO, Shunya MANO, Kenzo USHIRO, Jinto NO, Ryosuke TANAKA, Maho YAMANAKA, Hiroyuki TANAKA, Manabu TOGO
-
Patent number: 11186171Abstract: Provided is an operation mechanism of a work vehicle capable of suppressing transmission of vibration from a vehicle body to a cabin. The operation mechanism of a work vehicle includes: a first link portion which is supported by the vehicle body (a center frame, a transmission, and the like); a second link portion which is supported by a cabin placed on the vehicle body; and a third link portion which has flexibility and connects the first link portion and the second link portion so as to be interlockable.Type: GrantFiled: March 27, 2020Date of Patent: November 30, 2021Assignee: KUBOTA CORPORATIONInventors: Daisuke Miyazaki, Koji Masumoto, Kenzo Ushiro, Hideaki Ezaki
-
Publication number: 20200307375Abstract: Provided is an operation mechanism of a work vehicle capable of suppressing transmission of vibration from a vehicle body to a cabin. The operation mechanism of a work vehicle includes: a first link portion which is supported by the vehicle body (a center frame, a transmission, and the like); a second link portion which is supported by a cabin placed on the vehicle body; and a third link portion which has flexibility and connects the first link portion and the second link portion so as to be interlockable.Type: ApplicationFiled: March 27, 2020Publication date: October 1, 2020Applicant: KUBOTA CORPORATIONInventors: Daisuke MIYAZAKI, Koji MASUMOTO, Kenzo USHIRO, Hideaki EZAKI
-
Patent number: 9528242Abstract: A front loader includes a mechanical posture maintaining mechanism for maintaining the posture of an implement, regardless of swing displacement of a boom. The boom is formed in a curved shape in which a longitudinal central side thereof is located above. The posture maintaining mechanism includes a swing link member having an inner free-end part and an outer free-end part and disposed at a longitudinal center location of the boom so as to be swingable about a third horizontal pivot as a fulcrum. A base-end link member extends between a fixed bracket and the inner free-end part and a free-end link member links the outer free-end part to the implement.Type: GrantFiled: September 22, 2014Date of Patent: December 27, 2016Assignee: KUBOTA CORPORATIONInventors: Kosuke Oyama, Kenzo Ushiro
-
Patent number: 9039343Abstract: A front loader is provided with an indicator device. The indicator device is configured to indicate that the work implement is in an identical posture irrespective of a height position of the work implement, by aligning a rear end of the indicator rod with a rear end of the guide tube.Type: GrantFiled: February 25, 2013Date of Patent: May 26, 2015Assignee: Kubota CorporationInventors: Ryoichi Nishi, Koji Saito, Kosuke Oyama, Kenzo Ushiro, Takahiro Yonekura
-
Publication number: 20150098785Abstract: A front loader includes a mechanical posture maintaining mechanism for maintaining the posture of an implement, regardless of swing displacement of a boom. The boom is formed in a curved shape in which a longitudinal central side thereof is located above. The posture maintaining mechanism includes a swing link member having an inner free-end part and an outer free-end part and disposed at a longitudinal center location of the boom so as to be swingable about a third horizontal pivot as a fulcrum. A base-end link member extends between a fixed bracket and the inner free-end part and a free-end link member links the outer free-end part to the implement.Type: ApplicationFiled: September 22, 2014Publication date: April 9, 2015Inventors: Kosuke OYAMA, Kenzo USHIRO
-
Patent number: 8979468Abstract: A loading work apparatus includes booms, attachment tools, an implement tool removably attached to the attachment tools, and implement tool cylinders. The implement tool includes an engaged member on a back surface thereof. The attachment tools include an attachment unit having an engaging member engaged with the engaged member, coupling members supporting the transverse shaft, and lock members locking/unlocking engagement between the engaging member and engaged member. Each coupling member includes brackets on lateral opposite sides of the lock member. The transverse shaft is supported at opposite ends thereof by lower portions of the right and left brackets. The support shaft is supported at opposite ends thereof by intermediate portions of the right and left brackets. The transverse shaft and the support shaft bridge across the lock member.Type: GrantFiled: February 25, 2013Date of Patent: March 17, 2015Assignee: Kubota CorporationInventors: Kosuke Oyama, Kenzo Ushiro
-
Publication number: 20140064898Abstract: Disclosed is a front loader provided with an indicator device. The indicator device is configured to indicate that the work implement is in an identical posture irrespective of a height position of the work implement, by aligning a rear end of the indicator rod with a rear end of the guide tube.Type: ApplicationFiled: February 25, 2013Publication date: March 6, 2014Applicant: KUBOTA CORPORATIONInventors: Ryoichi Nishi, Koji Saito, Kosuke Oyama, Kenzo Ushiro, Takahiro Yonekura
-
Publication number: 20140064899Abstract: A loading work apparatus includes booms, attachment tools, an implement tool removably attached to the attachment tools, and implement tool cylinders. The implement tool includes an engaged member on a back surface thereof. The attachment tools include an attachment unit having an engaging member engaged with the engaged member, coupling members supporting the transverse shaft, and lock members locking/unlocking engagement between the engaging member and engaged member. Each coupling member includes brackets on lateral opposite sides of the lock member. The transverse shaft is supported at opposite ends thereof by lower portions of the right and left brackets. The support shaft is supported at opposite ends thereof by intermediate portions of the right and left brackets. The transverse shaft and the support shaft bridge across the lock member.Type: ApplicationFiled: February 25, 2013Publication date: March 6, 2014Applicant: Kubota CorporationInventors: Kosuke Oyama, Kenzo Ushiro
-
Patent number: 8579364Abstract: A work vehicle includes a front loader mounted at a front portion of the work vehicle to be vertically pivotable, a driving control device, and a canopy device for covering the driving control device from above, the canopy device including a roof disposed upwardly of the driving control device and a support body for supporting the roof. The roof includes a front visor portion which projects, in a plan view thereof, to a position same as or more forwardly of a front end portion of the driving control device. To a lower face of said front visor portion, there are attached a pair of right and left front illumination lamps, and there is provided an upper concave portion at the right/left center thereof. A lower face of the upper concave portion is formed as an inclined face which is inclined upward from a rear portion to a front edge of the front visor portion so as to be located at a higher position than the attaching position of the front illumination lamps.Type: GrantFiled: March 25, 2008Date of Patent: November 12, 2013Assignee: Kubota CorporationInventors: Hiroki Fukudome, Naoya Tsuda, Kenzo Ushiro
-
Patent number: 7954592Abstract: A work vehicle operable in a rearward facing position using a simple construction is disclosed. The work vehicle includes a hydrostatic stepless change speed device for transmitting power from an engine to a traveling device, a change speed pedal mechanism operable in a forward facing position for changing speeds in the hydrostatic stepless change speed device, and a travel-control lever provided at a rear position of a vehicle body and operable in the rearward facing position. The travel-control lever and the change speed pedal mechanism are linked to each other through a mechanical interlocking mechanism so as to control the hydrostatic stepless change speed device by the travel-control lever through the change speed pedal mechanism.Type: GrantFiled: April 3, 2008Date of Patent: June 7, 2011Assignee: Kubota CorporationInventors: Eiji Miyazaki, Masayuki Nakano, Kenzo Ushiro, Masataka Takagi, Yutaka Inubushi
-
Patent number: 7854281Abstract: A PTO clutch for a work vehicle and an operating structure for the PTO clutch includes: a PTO clutch having a clutch member and receiving drive power from an engine; a clutch control mechanically coupled to the clutch member for manually operating the PTO clutch via the clutch member; a PTO brake disposed downstream of the PTO clutch with respect to a direction in which power is transmitted, the PTO brake being movable to a braking position in association with a clutch disengaging operation of the clutch member; and a control retaining device for retaining the clutch control at a clutch disengaging position.Type: GrantFiled: February 20, 2007Date of Patent: December 21, 2010Assignee: Kubota CorporationInventors: Kiyoshige Maezawa, Akifumi Nishino, Kenzo Ushiro
-
Publication number: 20090005219Abstract: A work vehicle operable in a rearward facing position using a simple construction is disclosed. The work vehicle includes a hydrostatic stepless change speed device for transmitting power from an engine to a traveling device, a change speed pedal mechanism operable in a forward facing position for changing speeds in the hydrostatic stepless change speed device, and a travel-control lever provided at a rear position of a vehicle body and operable in the rearward facing position. The travel-control lever and the change speed pedal mechanism are linked to each other through a mechanical interlocking mechanism so as to control the hydrostatic stepless change speed device by the travel-control lever through the change speed pedal mechanism.Type: ApplicationFiled: April 3, 2008Publication date: January 1, 2009Applicant: KUBOTA CORPORATIONInventors: Eiji Miyazaki, Masayuki Nakano, Kenzo Ushiro, Masataka Takagi, Yutaka Inubushi
-
Publication number: 20080238147Abstract: A work vehicle includes a front loader mounted at a front portion of the work vehicle to be vertically pivotable, a driving control device, and a canopy device for covering the driving control device from above, the canopy device including a roof disposed upwardly of the driving control device and a support body for supporting the roof. The roof includes a front visor portion which projects, in a plan view thereof, to a position same as or more forwardly of a front end portion of the driving control device. To a lower face of said front visor portion, there are attached a pair of right and left front illumination lamps, and there is provided an upper concave portion at the right/left center thereof. A lower face of the upper concave portion is formed as an inclined face which is inclined upward from a rear portion to a front edge of the front visor portion so as to be located at a higher position than the attaching position of the front illumination lamps.Type: ApplicationFiled: March 25, 2008Publication date: October 2, 2008Applicant: KUBOTA CORPORATIONInventors: Hiroki Fukudome, Naoya Tsuda, Kenzo Ushiro
-
Patent number: 7421917Abstract: A tractor with a PTO apparatus, comprises: a plurality of wheels; a vehicle body supported by the plurality of wheels; an engine supported on the vehicle body; a rear PTO shaft disposed at a rear of the vehicle body for transmitting power from the engine; a mid-PTO shaft disposed under the vehicle body for transmitting power from the engine; a PTO mode selecting device having a first position for transmitting power only to the rear PTO shaft, a second position for transmitting power to both the rear PTO shaft and said mid-PTO shaft, and a third position for transmitting power only to said mid-PTO shaft; a PTO clutch disposed on a transmission line upstream of said PTO mode selecting device and switchable between an engaged position and a disengaged position; and a restricting mechanism for preventing a change operation of said PTO mode selecting device when said PTO clutch is in the engaged position, and permitting the change operation of said PTO mode selecting device when said PTO clutch is in the disengageType: GrantFiled: June 24, 2005Date of Patent: September 9, 2008Assignee: Kubota CorporationInventors: Akifumi Nishino, Ryuji Kitagawa, Kiyokazu Nakanishi, Tsukasa Wada, Kenzo Ushiro
-
Patent number: 7404341Abstract: A transmission system for transmitting power through a traveling transmission line and also through a PTO transmission line is disclosed. The system includes a clutch housing and a base transmission case connected via a housing frame. The base transmission case includes a front end opening and a rear end opening. A differential case is connected to the rear end opening. The front end opening is selectively connected with either a gear change speed case having a gear change speed mechanism or an HST case having an HST mechanism. When the gear change speed mechanism is selectively used, a PTO power output portion communicates with the PTO transmission line and a traveling power output portion communicates with the traveling transmission line. When the HST mechanism is selectively used, a pump shaft communicates with the PTO transmission line and a motor shaft communicates with the traveling transmission line.Type: GrantFiled: September 8, 2004Date of Patent: July 29, 2008Assignee: Kubota CorporationInventors: Akifumi Nishino, Hajime Shikiya, Kiyoshige Maezawa, Shigeo Shoen, Kenzo Ushiro, Keita Ono
-
Patent number: 7399221Abstract: A cabin for a work vehicle, comprising: a ceiling portion; an air conditioner provided to the work vehicle; an air distribution duct provided to the ceiling portion for communicating conditioned air from the air conditioner to the cabin; an air guide projecting into the air distribution duct at an intermediate portion of the duct and forming an inlet opening in a lateral face of a projecting portion of the air guide; and an outlet portion extending to outside the duct and having an opening for introducing the conditioned air from the inlet opening into the cabin. The air guide is pivotable between a use condition and a non-use condition where the inlet opening is oriented differently from an orientation of the inlet opening when the air guide is in the use condition.Type: GrantFiled: February 14, 2006Date of Patent: July 15, 2008Assignee: Kubota CorporationInventors: Koji Masumoto, Kenzo Ushiro
-
Publication number: 20070240533Abstract: A speed change operating structure for a hydrostatic continuously variable speed-change apparatus of a work vehicle includes: a speed change pedal for effecting a speed-changing operation of the hydrostatic continuously variable speed-change apparatus, the speed change pedal being urged in a direction toward its neutral position; a speed-maintaining lever disposed adjacent a lateral side of a driver's seat included in the work vehicle; a retaining member displaceable by an operation of the speed-maintaining lever in an operational direction and in an opposite direction to the operational direction; and a restraining member movable in a first direction and a second direction opposite to the first direction, in association with an operation of the speed change pedal, the restraining member being engageable with the retaining member at a plurality of positions, an engagement between the restraining member and the retaining member preventing movement of the speed change pedal in the direction toward the neutral pType: ApplicationFiled: February 20, 2007Publication date: October 18, 2007Applicant: Kubota CorporationInventors: Koji Masumoto, Kenzo Ushiro