Patents by Inventor Hiroshi Tottori
Hiroshi Tottori 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: 10215225Abstract: In a power-transmitting mechanism with rolling-element bearing according to the present invention, an inner ring has plural inner ring members disposed in series in an axial direction, an outer ring has plural outer ring members respectively cooperating with the plural inner ring members. Plural rolling elements are disposed between the cooperating inner ring members and outer ring members. A retainer has plural partitions retaining the plural rolling elements at predetermined intervals in the circumferential direction such that rolling elements disposed between one pair of cooperating inner ring and outer ring members and rolling elements disposed between another pair of cooperating inner ring and outer ring members orbit the corresponding inner ring members in a synchronized manner, and a connector connecting the plural partitions such that the plural partitions integrally rotate around an axis.Type: GrantFiled: March 24, 2017Date of Patent: February 26, 2019Assignees: KANZAKI KOKYUKOKI MFG. CO., LTD., KINKI UNIVERSITYInventors: Hiroshi Sugimoto, Hajimu Imanaka, Hiroshi Tottori, Yasuyoshi Tozaki
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Publication number: 20170284459Abstract: In a power-transmitting mechanism with rolling-element bearing according to the present invention, an inner ring has plural inner ring members disposed in series in an axial direction, an outer ring has plural outer ring members respectively cooperating with the plural inner ring members. Plural rolling elements are disposed between the cooperating inner ring members and outer ring members. A retainer has plural partitions retaining the plural rolling elements at predetermined intervals in the circumferential direction such that rolling elements disposed between one pair of cooperating inner ring and outer ring members and rolling elements disposed between another pair of cooperating inner ring and outer ring members orbit the corresponding inner ring members in a synchronized manner, and a connector connecting the plural partitions such that the plural partitions integrally rotate around an axis.Type: ApplicationFiled: March 24, 2017Publication date: October 5, 2017Inventors: Hiroshi SUGIMOTO, Hajimu IMANAKA, Hiroshi TOTTORI, Yasuyoshi TOZAKI
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Patent number: 8664556Abstract: Included are: a closing spring which provides a closing drive force for closing a contact of a switch device by rotating a camshaft by release of energy; a first semi-circular latch which retains stored energy of the closing spring via a closing lever; an output lever which pivots by being pressed by a cam provided on the camshaft when retention by the first semi-circular latch is released and the energy of the closing spring is released, and transmits the closing drive force to the switch device via a linking mechanism; and a second semi-circular latch which prevents the output lever from pivoting in a tripping direction via a tripping lever and retains stored energy of an interrupting spring provided on the linking mechanism, the pivoting of the output lever being caused by transmission of the stored energy of the interrupting spring.Type: GrantFiled: June 11, 2010Date of Patent: March 4, 2014Assignee: Mitsubishi Electric CorporationInventors: Yohei Yamamoto, Hiroshi Tottori, Takeaki Yamanaka
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Publication number: 20120125752Abstract: Included are: a closing spring which provides a closing drive force for closing a contact of a switch device by rotating a camshaft by release of energy; a first semi-circular latch which retains stored energy of the closing spring via a closing lever; an output lever which pivots by being pressed by a cam provided on the camshaft when retention by the first semi-circular latch is released and the energy of the closing spring is released, and transmits the closing drive force to the switch device via a linking mechanism; and a second semi-circular latch which prevents the output lever from pivoting in a tripping direction via a tripping lever and retains stored energy of an interrupting spring provided on the linking mechanism, the pivoting of the output lever being caused by transmission of the stored energy of the interrupting spring.Type: ApplicationFiled: June 11, 2010Publication date: May 24, 2012Applicant: Mitsubishi Electric CorporationInventors: Yohei Yamamoto, Hiroshi Tottori, Takeaki Yamanaka
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Patent number: 7867132Abstract: A gear transmission comprises a traveling load detection element including an upstream detection member, a downstream detection member and a biasing member. One of the upstream and downstream detection members is an axially slidable detection member which is axially slidable along an output shaft. One of the upstream and downstream detection members has a first engagement part and a second engagement part. The first engagement part and the second engagement part generate respective forces for sliding the axially slidable detection member opposite to the biasing direction of the biasing member. The forces are changed according to variation of the traveling load.Type: GrantFiled: March 20, 2008Date of Patent: January 11, 2011Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Norihiro Ishii, Tomoyuki Ebihara, Hiroshi Tottori, Kazunari Koga
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Publication number: 20080234092Abstract: A gear transmission comprises a traveling load detection means including an upstream detection member, a downstream detection member and a biasing member. One of the upstream and downstream detection members is an axially slidable detection member which is axially slidable along an output shaft. One of the upstream and downstream detection members has a first engagement part and a second engagement part. The first engagement part and the second engagement part generate respective forces for sliding the axially slidable detection member opposite to the biasing direction of the biasing member. The forces are changed according to variation of the traveling load.Type: ApplicationFiled: March 20, 2008Publication date: September 25, 2008Inventors: Norihiro ISHII, Tomoyuki EBIHARA, Hiroshi TOTTORI, Kazunari KOGA
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Publication number: 20080032843Abstract: A transaxle for a vehicle comprises: an axle; an input shaft disposed perpendicular to the axle; a transmission interposed between the input shaft and the axle; a transaxle casing incorporating the axle, the input shaft and the transmission, the transaxle casing having opposite sides in a direction parallel to the axle; and a brake unit for braking the axle, the brake being provided on one of the opposite sides of the transaxle casing in the direction parallel to the axle.Type: ApplicationFiled: August 2, 2007Publication date: February 7, 2008Inventors: Tomoyuki EBIHARA, Hiroshi TOTTORI
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Patent number: 7290637Abstract: The hydraulic steering mechanism according to the present invention includes an axle case, a first steering case, a second steering case, a first arm, a second arms, a third arm, a hydraulic actuator, and a tie rod. The first, second and third arms are provided to the first steering case, the second steering case and the axle case, respectively. The hydraulic actuator includes a cylinder and a piston for moving with respect to each other by an action of hydraulic pressure. The first and second arms have tie rod mounting portions to which the tie rod is mounted. At least one of the first and second arms has a first hydraulic actuator mounting portion to which one of the cylinder and the piston in the hydraulic actuator is mounted. The third arm has a second hydraulic actuator mounting portion to which the other of the cylinder and the piston in the hydraulic actuator is mounted.Type: GrantFiled: May 28, 2004Date of Patent: November 6, 2007Inventors: Kentaro Nagata, Hiroshi Tottori, Michio Tsukamoto, Norihiro Ishii
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Patent number: 7234299Abstract: An integrated hydraulic transaxle (IHT) comprises a hydrostatic transmission (HST), an axle driven by the HST, and a housing incorporating the HST and the axle. The HST includes a variable displacement hydraulic pump driven by a prime mover, and a hydraulic motor fluidly connected to the hydraulic pump. The hydraulic pump has a trunnion type movable swash plate. The internal displacement of the hydraulic motor is larger than the internal displacement of the hydraulic pump so as to increase the hydraulic deceleration activity of the HST. In the IHT, a mechanical deceleration drive train is interposed between the hydraulic motor and the axle. The mechanical deceleration activity of the mechanical deceleration drive train is reduced so far as the increase of the hydraulic deceleration activity of the HST.Type: GrantFiled: March 31, 2006Date of Patent: June 26, 2007Inventors: Koji Irikura, Ryota Ohashi, Hiroshi Tottori
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Patent number: 7225704Abstract: In a transmission for a working vehicle, a working unit includes a hydraulic power unit and a valve unit enclosed in a first bulging portion of a transmission case closer to an upper side or on a top surface thereof and connected with each other along a vehicle lengthwise direction. The first bulging portion is closer to a first lateral side along the vehicle width direction of the transmission case, while a hydraulic pump is located closer to a second lateral side. Hydraulic fluid is drawn from the transmission case, around a lower side of the hydraulic pump, through a suction port thereof, and discharged to a suction port of the valve unit. The hydraulic power unit includes a cylinder tube and piston, extending in the lengthwise direction, and a support shaft, extending along the width direction, which is supported by the transmission case and connected to a lift arm.Type: GrantFiled: March 10, 2005Date of Patent: June 5, 2007Inventors: Norihiro Ishii, Hirohiko Kawada, Hideki Kanenobu, Hiroshi Tottori, Kentaro Nagata
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Publication number: 20060174615Abstract: An integrated hydraulic transaxle (IHT) comprises a hydrostatic transmission (HST), an axle driven by the HST, and a housing incorporating the HST and the axle. The HST includes a variable displacement hydraulic pump driven by a prime mover, and a hydraulic motor fluidly connected to the hydraulic pump. The hydraulic pump has a trunnion type movable swash plate. The internal displacement of the hydraulic motor is larger than the internal displacement of the hydraulic pump so as to increase the hydraulic deceleration activity of the HST. In the IHT, a mechanical deceleration drive train is interposed between the hydraulic motor and the axle. The mechanical deceleration activity of the mechanical deceleration drive train is reduced so far as the increase of the hydraulic deceleration activity of the HST.Type: ApplicationFiled: March 31, 2006Publication date: August 10, 2006Inventors: Koji Irikura, Ryota Ohashi, Hiroshi Tottori
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Patent number: 7047839Abstract: In a transmission for a working vehicle, a PTO input shaft is located with its rotational axis extending in a vehicle lengthwise direction substantially at a widthwise center of a transmission case along a vehicle width direction. A running power input shaft is located with its rotational axis extending in the vehicle lengthwise direction substantially at the same position as that of the PTO input shaft along the vehicle width direction and at a lower side of the PTO input shaft. The transmission case provides an accommodation space for accommodating a differential gear unit, which space is displaced to a first lateral side of the vehicle along the vehicle width direction. A running power transmission shaft is located on the front side of the space with its axis extending in the vehicle lengthwise direction, and the running power input shaft, the running power transmission shaft and the differential gear unit are interlocked to each other via a running power gear train.Type: GrantFiled: June 4, 2004Date of Patent: May 23, 2006Inventors: Norihiro Ishii, Hirohiko Kawada, Hideki Kanenobu, Hiroshi Tottori, Kentaro Nagata
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Patent number: 7043908Abstract: An integrated hydraulic transaxle (IHT) comprises a hydrostatic transmission (HST), an axle driven by the HST, and a housing incorporating the HST and the axle. The HST includes a variable displacement hydraulic pump driven by a prime mover, and a hydraulic motor fluidly connected to the hydraulic pump. The hydraulic pump has a trunnion type movable swash plate. The internal displacement of the hydraulic motor is larger than the internal displacement of the hydraulic pump so as to increase the hydraulic deceleration activity of the HST. In the IHT, a mechanical deceleration drive train is interposed between the hydraulic motor and the axle. The mechanical deceleration activity of the mechanical deceleration drive train is reduced so far as the increase of the hydraulic deceleration activity of the HST.Type: GrantFiled: July 6, 2004Date of Patent: May 16, 2006Inventors: Koji Irikura, Ryota Ohashi, Hiroshi Tottori
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Patent number: 7040445Abstract: A hydraulic driving apparatus for a wheeled vehicle including a prime mover and a pair of wheels comprises a stepless transmission mechanism for traveling which transmits driving force from the prime mover to the drive wheels so as rotate the drive wheels in a common forward or rearward direction, and a steering transmission mechanism including a hydrostatic stepless transmission including a variable hydraulic pump and a hydraulic motor fluidly connected to each other, wherein a rotational force of the hydraulic motor is divided into opposite directive rotations transmitted to the respective drive wheels. A switching valve is disposed between the variable hydraulic pump and the hydraulic motor in the steering transmission mechanism.Type: GrantFiled: April 24, 2003Date of Patent: May 9, 2006Inventors: Norihiro Ishii, Hiroshi Tottori, Shusuke Nemoto
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Publication number: 20060005539Abstract: An integrated hydraulic transaxle (IHT) comprises a hydrostatic transmission (HST), an axle driven by the HST, and a housing incorporating the HST and the axle. The HST includes a variable displacement hydraulic pump driven by a prime mover, and a hydraulic motor fluidly connected to the hydraulic pump. The hydraulic pump has a trunnion type movable swash plate. The internal displacement of the hydraulic motor is larger than the internal displacement of the hydraulic pump so as to increase the hydraulic deceleration activity of the HST. In the IHT, a mechanical deceleration drive train is interposed between the hydraulic motor and the axle. The mechanical deceleration activity of the mechanical deceleration drive train is reduced so far as the increase of the hydraulic deceleration activity of the HST.Type: ApplicationFiled: July 6, 2004Publication date: January 12, 2006Inventors: Koji Irikura, Ryota Ohashi, Hiroshi Tottori
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Publication number: 20050150316Abstract: In a transmission for a working vehicle, a PTO input shaft is located with its rotational axis extending in a vehicle lengthwise direction substantially at a widthwise center of a transmission case along a vehicle width direction. A running power input shaft is located with its rotational axis extending in the vehicle lengthwise direction substantially at the same position as that of the PTO input shaft along the vehicle width direction and at a lower side of the PTO input shaft. The transmission case provides an accommodation space for accommodating a differential gear unit, which space is displaced to a first lateral side of the vehicle along the vehicle width direction. A running power transmission shaft is located on the front side of the space with its axis extending in the vehicle lengthwise direction, and the running power input shaft, the running power transmission shaft and the differential gear unit are interlocked to each other via a running power gear train.Type: ApplicationFiled: March 10, 2005Publication date: July 14, 2005Inventors: Norihiro Ishii, Hirohiko Kawada, Hideki Kanenobu, Hiroshi Tottori, Kentaro Nagata
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Publication number: 20040251074Abstract: The hydraulic steering mechanism according to the present invention includes an axle case, a first steering case, a second steering case, a first arm, a second arms, a third arm, a hydraulic actuator, and a tie rod. The first, second and third arms are provided to the first steering case, the second steering case and the axle case, respectively. The hydraulic actuator includes a cylinder and a piston for moving with respect to each other by an action of hydraulic pressure. The first and second arms have tie rod mounting portions to which the tie rod is mounted. At least one of the first and second arms has a first hydraulic actuator mounting portion to which one of the cylinder and the piston in the hydraulic actuator is mounted. The third arm has a second hydraulic actuator mounting portion to which the other of the cylinder and the piston in the hydraulic actuator is mounted.Type: ApplicationFiled: May 28, 2004Publication date: December 16, 2004Inventors: Kentaro Nagata, Hiroshi Tottori, Michio Tsukamoto, Norihiro Ishii
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Publication number: 20040216539Abstract: In a transmission for a working vehicle, a PTO input shaft is located with its rotational axis extending in a vehicle lengthwise direction substantially at a widthwise center of a transmission case along a vehicle width direction. A running power input shaft is located with its rotational axis extending in the vehicle lengthwise direction substantially at the same position as that of the PTO input shaft along the vehicle width direction and at a lower side of the PTO input shaft. The transmission case provides an accommodation space for accommodating a differential gear unit, which space is displaced to a first lateral side of the vehicle along the vehicle width direction. A running power transmission shaft is located on the front side of the space with its axis extending in the vehicle lengthwise direction, and the running power input shaft, the running power transmission shaft and the differential gear unit are interlocked to each other via a running power gear train.Type: ApplicationFiled: June 4, 2004Publication date: November 4, 2004Inventors: Norihiro Ishii, Hirohiko Kawada, Hideki Kanenobu, Hiroshi Tottori, Kentaro Nagata
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Patent number: 6758112Abstract: In a power transmission arrangement, a working unit includes a hydraulic power unit and a valve unit enclosed in a first bulging portion of a transmission case closer to an upper side or on a top surface thereof and connected with each other along a vehicle lengthwise direction. The first bulging portion is closer to a first lateral side along the vehicle width direction of the transmission case, while a hydraulic pump is located closer to a second lateral side. Hydraulic fluid is drawn from the transmission case, around a lower side of the hydraulic pump, through a suction port thereof, and discharged to a suction port of the valve unit. The hydraulic power unit includes a cylinder tube and piston, extending in the lengthwise direction, and support shaft, extending along the width direction, which is supported by the transmission case and connected to a lift arm.Type: GrantFiled: March 26, 2002Date of Patent: July 6, 2004Inventors: Norihiro Ishii, Hirohiko Kawada, Hideki Kanenobu, Hiroshi Tottori, Kentaro Nagata
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Publication number: 20030201134Abstract: A hydraulic driving apparatus for a wheeled vehicle including a prime mover and a pair of wheels comprises a stepless transmission mechanism for traveling which transmits driving force from the prime mover to the drive wheels so as rotate the drive wheels in a common forward or rearward direction, and a steering transmission mechanism including a hydrostatic stepless transmission including a variable hydraulic pump and a hydraulic motor fluidly connected to each other, wherein a rotational force of the hydraulic motor is divided into opposite directive rotations transmitted to the respective drive wheels. A switching valve is disposed between the variable hydraulic pump and the hydraulic motor in the steering transmission mechanism.Type: ApplicationFiled: April 24, 2003Publication date: October 30, 2003Inventors: Norihiro Ishii, Hiroshi Tottori, Shusuke Nemoto