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).
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Publication number: 20150308560Abstract: 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: ApplicationFiled: April 24, 2014Publication date: October 29, 2015Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA, Jun TAKAGI
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Publication number: 20150300481Abstract: 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: ApplicationFiled: April 22, 2014Publication date: October 22, 2015Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA
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Publication number: 20150300453Abstract: 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: ApplicationFiled: April 22, 2014Publication date: October 22, 2015Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA
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Publication number: 20150300478Abstract: 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: ApplicationFiled: April 22, 2014Publication date: October 22, 2015Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Seiji ITOO, Ayumi HAMADA, Taisuke MORITA
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Patent number: 9057436Abstract: 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: GrantFiled: April 25, 2014Date of Patent: June 16, 2015Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Seiji Itoo, Ayumi Hamada, Taisuke Morita
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Patent number: 9045031Abstract: 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: GrantFiled: December 27, 2012Date of Patent: June 2, 2015Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yuji Kouma, Seiji Itoo, Taisuke Morita, Ayumi Hamada
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Patent number: 8875833Abstract: 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: GrantFiled: December 31, 2012Date of Patent: November 4, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Yuji Kouma, Taisuke Morita, Ayumi Hamada, Seiji Itoo
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Patent number: 8870702Abstract: 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: GrantFiled: December 30, 2011Date of Patent: October 28, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Hideaki Kii, Seiji Itoo, Ayumi Hamada
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Publication number: 20140187372Abstract: 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: ApplicationFiled: December 27, 2012Publication date: July 3, 2014Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yuji KOUMA, Seiji ITOO, Taisuke MORITA, Ayumi HAMADA
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Publication number: 20130167681Abstract: 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: ApplicationFiled: December 30, 2011Publication date: July 4, 2013Inventors: Hideaki KII, Seiji Itoo, Ayumi Hamada
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Patent number: 8276473Abstract: 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: GrantFiled: December 30, 2009Date of Patent: October 2, 2012Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Yasutaka Kobayashi, Ayumi Hamada
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Publication number: 20110155497Abstract: 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: ApplicationFiled: December 30, 2009Publication date: June 30, 2011Inventors: Yasutaka KOBAYASHI, Ayumi Hamada