Patents by Inventor Hirotoshi Fujita

Hirotoshi Fujita 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).

  • Patent number: 11945518
    Abstract: A steer-by-wire steering device includes a first member, a second member, and stoppers. The first member is rotatable together with the input shaft, and includes a first protrusion protruding from the input shaft in the radial direction. The second member includes a second protrusion protruding on the trajectory of the first protrusion, and is rotatable together with the first member with the first protrusion being abutting the second protrusion. The stoppers are provided at respective positions capable of abutting on the trajectory of the second protrusion only when the second member is rotated by the first member.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 2, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Hiroshi Fujita, Hirotoshi Uchibori
  • Patent number: 9976532
    Abstract: One aspect of the invention provides a recoil starter including: a reel support shaft; a rope reel that is rotatably mounted on the reel support shaft; a ratchet member that is swingably mounted on the rope reel; a ratchet guide that is rotatably mounted on the reel support shaft with friction resistance. The ratchet guide includes: a guide portion and a swinging-prevention portion. When the rope reel rotates in an engine starting direction, the guide portion pushes out the ratchet member to an outer diameter direction. When the ratchet member does not contact the guide portion, the swinging-prevention portion prevents the ratchet member from swinging to the outer diameter direction.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: May 22, 2018
    Assignee: STARTING INDUSTRIAL CO., LTD.
    Inventors: Hirotoshi Fujita, Shigemitsu Chigira
  • Publication number: 20160138546
    Abstract: One aspect of the invention provides a recoil starter including: a reel support shaft; a rope reel that is rotatably mounted on the reel support shaft; a ratchet member that is swingably mounted on the rope reel; a ratchet guide that is rotatably mounted on the reel support shaft with friction resistance. The ratchet guide includes: a guide portion and a swinging-prevention portion. When the rope reel rotates in an engine starting direction, the guide portion pushes out the ratchet member to an outer diameter direction. When the ratchet member does not contact the guide portion, the swinging-prevention portion prevents the ratchet member from swinging to the outer diameter direction.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 19, 2016
    Inventors: Hirotoshi FUJITA, Shigemitsu CHIGIRA
  • Patent number: 8616170
    Abstract: One of the embodiments provides a starter including: a starter case; a rotational torque applying unit; a torque-accumulation spring; a rotating member; a driving pulley; and a rotation regulating mechanism including: a regulating ratchet provided on the driving pulley or the rotating member at a position shifted from a rotation center thereof; and a pressing unit provided on the starter case and urged by a given resilient pressing force to be engaged with the regulating ratchet, wherein, when the rotational torque accumulated in the torque-accumulation spring exceeds the given resilient pressing force, the driving pulley or the rotating member urges back the pressing unit via the regulating ratchet so that the regulating ratchet is disengaged from the pressing unit, to thereby release the rotational torque.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: December 31, 2013
    Assignee: Starting Industrial Co., Ltd.
    Inventors: Yoshinori Horikoshi, Seiichi Nieda, Taro Kihara, Hirotoshi Fujita
  • Patent number: 8297250
    Abstract: A recoil starter includes a case; a reel pivot formed on the case; a rope reel rotatably supported on the reel pivot; a recoil spring; a cam; a power storage spring interposed between the rope reel and the cam; and a power storage ratchet mechanism disposed between facing surfaces of the rope reel and the cam and. The power storage ratchet mechanism is configured to disengage the rope reel and the cam when the rope reel rotates in an engine-starting direction, and engage the rope reel and the cam when the rope reel rotates in an opposite direction to the engine-starting direction.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: October 30, 2012
    Assignee: Starting Industrial Co., Ltd.
    Inventors: Seiichi Nieda, Hirotoshi Fujita
  • Patent number: 8286604
    Abstract: According to one embodiment, a starter for a small engine includes: a torque apply unit that applies a torque to a torque-accumulation spring; a rotating member that transmits the accumulated torque to a crankshaft; and a rotation regulation unit that restrains the accumulated torque from being transmitted to the crankshaft, wherein the rotation regulation unit includes: a regulation ratchet provided on a rotating body linked with the crank shaft to rotate therewith; and a pressing unit provided on an engine case to be engaged with the regulation ratchet and to regulate an operation thereof, and wherein the regulation ratchet is disengaged from the pressing unit by the torque accumulated in the torque-accumulation spring when the accumulated torque exceeds a predetermined resilient force, thereby starting the engine.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: October 16, 2012
    Assignee: Starting Industrial Co., Ltd.
    Inventors: Taro Kihara, Yoshinori Horikoshi, Hideki Hashiba, Hirotoshi Fujita
  • Publication number: 20110185999
    Abstract: According to one embodiment, a starter for a small engine includes: a torque apply unit that applies a torque to a torque-accumulation spring; a rotating member that transmits the accumulated torque to a crankshaft; and a rotation regulation unit that restrains the accumulated torque from being transmitted to the crankshaft, wherein the rotation regulation unit includes: a regulation ratchet provided on a rotating body linked with the crank shaft to rotate therewith; and a pressing unit provided on an engine case to be engaged with the regulation ratchet and to regulate an operation thereof, and wherein the regulation ratchet is disengaged from the pressing unit by the torque accumulated in the torque-accumulation spring when the accumulated torque exceeds a predetermined resilient force, thereby starting the engine.
    Type: Application
    Filed: January 21, 2011
    Publication date: August 4, 2011
    Inventors: Taro KIHARA, Yoshinori HORIKOSHI, Hideki HASHIBA, Hirotoshi FUJITA
  • Publication number: 20110048361
    Abstract: One of the embodiments provides a starter including: a starter case; a rotational torque applying unit; a torque-accumulation spring; a rotating member; a driving pulley; and a rotation regulating mechanism including: a regulating ratchet provided on the driving pulley or the rotating member at a position shifted from a rotation center thereof; and a pressing unit provided on the starter case and urged by a given resilient pressing force to be engaged with the regulating ratchet, wherein, when the rotational torque accumulated in the torque-accumulation spring exceeds the given resilient pressing force, the driving pulley or the rotating member urges back the pressing unit via the regulating ratchet so that the regulating ratchet is disengaged from the pressing unit, to thereby release the rotational torque.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 3, 2011
    Inventors: Yoshinori Horikoshi, Seiichi Nieda, Taro Kihara, Hirotoshi Fujita
  • Publication number: 20100206259
    Abstract: According to an aspect of the present invention, there is provided a recoil starter including: a case; a reel pivot formed on the case; a rope reel rotatably supported on the reel pivot; a recoil spring; a cam; a power storage spring interposed between the rope reel and the cam; and a power storage ratchet mechanism disposed between facing surfaces of the rope reel and the cam and. The power storage ratchet mechanism is configured to disengage the rope reel and the cam when the rope reel rotates in an engine-starting direction, and engage the rope reel and the cam when the rope reel rotates in an opposite direction to the engine-starting direction.
    Type: Application
    Filed: February 17, 2010
    Publication date: August 19, 2010
    Inventors: Seiichi Nieda, Hirotoshi Fujita
  • Patent number: 7650868
    Abstract: A recoil starter includes a case with a support shaft formed thereon; a rope reel rotatably disposed on the support shaft; a recoil rope wound on the rope reel; a recoil spring that rotationally energizes the rope reel; a cam of an engine side; a power storing spring interposed between the rope reel and the cam; and a ratchet mechanism interposed between the rope reel and the cam. The ratchet mechanism includes: a ratchet shaft formed on the rope reel, a ratchet member having: a base portion oscillatably and slidably supported through an elongated hole on the ratchet shaft, and a ratchet pawl engageable with an engaging portion of the cam, and an energizer that energizes the base portion toward an uneven inner peripheral surface of the case.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: January 26, 2010
    Assignee: Starting Industrial Co., Ltd.
    Inventors: Hirotoshi Fujita, Shuhei Tsunoda
  • Patent number: 7458355
    Abstract: A recoil starter includes: a rope reel on which a recoil rope, one end of which is held on an outside of a starter case, is wound and which is fitted turnably on a reel pivot formed on an inside of the starter case; a recoil spring that turns and energizes the rope reel in a direction along which the recoil rope is rewound; a cam member one end of which is fitted turnably onto the reel pivot to oppose to the rope reel and which transfers a turning to an engine side via a ratchet mechanism; and a coil spring-like damper spring both ends of which are engaged with the rope reel and the cam member respectively; a bearing portion that supports turnably the cam member; and a dust cover provided integrally with the starter case.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: December 2, 2008
    Assignee: Starting Industrial Co., Ltd.
    Inventors: Hirotoshi Fujita, Isao Tohyama
  • Publication number: 20080173272
    Abstract: According to an aspect of the present invention, there is provided a recoil starter including: a case includes a support shaft formed thereon; a rope reel rotatably disposed on the support shaft; a recoil rope wound on the rope reel; a recoil spring that rotationally energizes the rope reel; a cam of an engine side; a power storing spring interposed between the rope reel and the cam; and a ratchet mechanism interposed between the rope reel and the cam. The ratchet mechanism includes: a ratchet shaft formed on the rope reel, a ratchet member having: a base portion oscillatably and slidably supported through an elongated hole on the ratchet shaft, and a ratchet pawl engageable with an engaging portion of the cam, and an energizer that energizes the base portion toward an uneven inner peripheral surface of the case.
    Type: Application
    Filed: January 18, 2008
    Publication date: July 24, 2008
    Inventors: Hirotoshi Fujita, Shuhei Tsunoda
  • Publication number: 20080072864
    Abstract: A recoil starter includes: a rope reel on which a recoil rope, one end of which is held on an outside of a starter case, is wound and which is fitted turnably on a reel pivot formed on an inside of the starter case; a recoil spring that turns and energizes the rope reel in a direction along which the recoil rope is rewound; a cam member one end of which is fitted turnably onto the reel pivot to oppose to the rope reel and which transfers a turning to an engine side via a ratchet mechanism; and a coil spring-like damper spring both ends of which are engaged with the rope reel and the cam member respectively; a bearing portion that supports turnably the cam member; and a dust cover provided integrally with the starter case.
    Type: Application
    Filed: September 12, 2007
    Publication date: March 27, 2008
    Inventors: Hirotoshi Fujita, Isao Tohyama