Patents by Inventor Ayumi Hamada

Ayumi Hamada 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: 20150308560
    Abstract: Provided is a V-belt type continuously variable transmission provided with a transmission case attached to an engine and forming an outer shape, comprising: an air intake duct provided with an air intake port arranged on the engine side; and an air intake duct connection port arranged in a side wall on the engine side of the transmission case and connected to the air intake duct, wherein the air intake duct connection port is inclined relative to the side wall.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 29, 2015
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA, Jun TAKAGI
  • Publication number: 20150300481
    Abstract: A vehicle-use transmission 9 comprises: a transmission case 91 accommodating a transmission mechanism; and a power extraction case 92 linked to a side wall of the transmission case 91 and accommodating a gear type power extraction mechanism 902 linked to a power extraction shaft 901 of the transmission mechanism, wherein the power extraction case 92 includes: a gear accommodation chamber 92a for accommodating the gear type power extraction mechanism 902; and an intermediate transmission chamber 92b for establishing fluid communication between the gear accommodation chamber 92a and the inside of the transmission case 91, and wherein the power extraction case 92 is provided with an oil communication passage 95 for establishing fluid communication between the inside of the transmission case 91 and the gear accommodation chamber 92a.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA
  • Publication number: 20150300453
    Abstract: A vehicle-use transmission includes: an input shaft into which a driving force from an engine is inputted; a power extraction shaft for transmitting the driving force of the input shaft to front wheels; a transmission mechanism for transmitting the driving force of the input shaft to rear wheels; and a rear-wheel intermediate shaft provided in a power transmission path between the power extraction shaft and the transmission mechanism. The rear-wheel intermediate shaft transmits the driving force through a helical gear attached to the rear-wheel intermediate shaft. Further, the rear-wheel intermediate shaft is supported by tapered roller bearings.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA
  • Publication number: 20150300478
    Abstract: A transmission is provided that includes: a counter low-gear that is provided with a low-gear body and a boss fit into the low-gear body so that driving force can be transmitted and provided with dog-claws and an expanded part at one axial end and that is axially non-movably and rotatably fit around a counter shaft; a counter high-gear that is provided with a high-gear body arranged in the one side from the low-gear body and with a cylinder including dog-claws at the one axial end thereof and that is axially non-movably and rotatably fit around the boss; and a shift sleeve that is axially movably spline-fit around the counter shaft and is arranged in the one side from the counter high-gear and that includes dog-claws capable of engaging with the dog-claws of the gears, the high-gear body is axially non-movably arranged between the low-gear body and the expanded part.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA
  • Patent number: 9057436
    Abstract: The present invention is a shift device for switching a dog clutch mechanism in a transmission, comprising: a shift shaft capable of moving in an axial direction; a shift member capable of moving in the axial direction within a predetermined waiting stroke range; an elastic member holder for a waiting mechanism; and an elastic member provided in outside of the shift shaft in a radial direction so as to be compressed and expanded between the elastic member holder and the shift member, wherein the elastic member biases the shift member toward one side in the axial direction.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: June 16, 2015
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Seiji Itoo, Ayumi Hamada, Taisuke Morita
  • Patent number: 9045031
    Abstract: An engine and a transmission are connected to each other via a connecting bracket interposed therebetween in the vehicular lengthwise direction. The engine is provided with a first connector having a first mounting hole substantially parallel to a vehicle lengthwise direction, and a first tightening member to be inserted into the first mounting hole on a side opposite to the engine connects the first end of the connecting bracket to the first connector. The transmission is provided with a second connector having a second mounting hole penetrating in a vehicular widthwise direction, and a second tightening member to be inserted into the second mounting hole connects the second end of the connecting bracket to the second connector.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: June 2, 2015
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yuji Kouma, Seiji Itoo, Taisuke Morita, Ayumi Hamada
  • Patent number: 8875833
    Abstract: A utility vehicle 1 prevents a size increase of a transmission while ensuring a predetermined inter-shaft distance between an output shaft and a rear axle. The utility vehicle 1 is capable of switching a two wheel drive mode for transmitting drive force to rear wheels 3 and a four wheel drive mode for transmitting the drive force to front wheels 2 and the rear wheels 3, a transmission 9 includes an input shaft 92 to which the drive force from an engine 8 is inputted, a front wheel drive output shaft 94 for transmitting the drive force of the input shaft 92 to the front wheels 2, and a rear axle 96 for transmitting the drive force of the input shaft 92 to the rear wheels 3. A rear wheel drive output shaft 95 is provided in a motive power transmission route between the front wheel drive output shaft 94 and the rear axle 96.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: November 4, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yuji Kouma, Taisuke Morita, Ayumi Hamada, Seiji Itoo
  • Patent number: 8870702
    Abstract: A power switching device for vehicle has an engaging mechanism for connecting and disconnecting between a pair of rotating members arranged on a driving force transmission passage, an operating mechanism for switch-operating the engaging mechanism, an electric actuator, and a waiting mechanism having an elastic member. The elastic member is incorporated into the waiting mechanism so that the elastic member can temporarily accumulate the operating power only when the engaging mechanism is switched to the engaged condition.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: October 28, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hideaki Kii, Seiji Itoo, Ayumi Hamada
  • Publication number: 20140187372
    Abstract: An engine and a transmission are connected to each other via a connecting bracket interposed therebetween in the vehicular lengthwise direction, the engine is provided with a first connector having a first mounting hole substantially parallel to a vehicle lengthwise direction, a first tightening member to be inserted into the first mounting hole on a side opposite to the engine connects one end of the connecting bracket to the first connector, the transmission is provided with a second connector having a second mounting hole penetrating in a vehicular widthwise direction, and a second tightening member to be inserted into the second mounting hole connects the other end of the connecting bracket to the second connector.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yuji KOUMA, Seiji ITOO, Taisuke MORITA, Ayumi HAMADA
  • Publication number: 20130167681
    Abstract: A power switching device for vehicle has an engaging mechanism for connecting and disconnecting between a pair of rotating members arranged on a driving force transmission passage, an operating mechanism for switch-operating the engaging mechanism, an electric actuator, and a waiting mechanism having an elastic member, wherein the elastic member is incorporated to the waiting mechanism so that the elastic member can temporarily accumulate the operating power only when the engaging mechanism is switched to the engaged condition.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Inventors: Hideaki KII, Seiji Itoo, Ayumi Hamada
  • Patent number: 8276473
    Abstract: A shift-drum apparatus for a gear-type transmission including a plurality of shift forks and a shift drum provided at its outer peripheral surface with a plurality of shift grooves, in which a state of the gear-type transmission is shifted between a neutral state and a plurality of transmission gear stages. The number of shift forks is the same as the number of the transmission gear stages, and each of the shift grooves includes one or more gear-shifting recesses that are depressed in an axial direction of the shift drum. The shift forks are biased in the axial direction respectively by springs toward the corresponding gear-shifting recesses. Two of the gear-shifting recesses are formed in at least one of the shift grooves, while two of the shift forks are engaged with the shift groove.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: October 2, 2012
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yasutaka Kobayashi, Ayumi Hamada
  • Publication number: 20110155497
    Abstract: The present invention provides a shift-drum apparatus for a gear-type transmission including a plurality of shift forks and a shift drum provided at its outer peripheral surface with a plurality of shift grooves, in which a state of the gear-type transmission is shifted between a neutral state and a plurality of transmission gear stages. The number of the shift forks is the same as the number of the transmission gear stages, and each of the shift grooves includes one or more gear-shifting recesses that are depressed in an axial direction of the shift drum. The shift forks are biased in the axial direction respectively by springs toward the corresponding gear-shifting recesses. Two of the gear shifting recesses are formed in at least one of the shift grooves, while two of the shift forks are engaged with the shift groove.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Inventors: Yasutaka KOBAYASHI, Ayumi Hamada