Patents Assigned to JTEKT
  • Hub unit
    Patent number: 9375978
    Abstract: A hub unit of the present invention includes a cap that covers an opening of a pilot portion, and the cap includes a cap body formed in a disc shape, and a cylindrical portion extending in an axial direction from an outer periphery of the cap body. The cap is removably attached to the pilot portion by screwing an external thread portion formed on an outer periphery of the cylindrical portion of the cap, to an internal thread portion formed on an inner periphery of the pilot portion.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 28, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Katsuyuki Harada, Shuji Maeda
  • Steering device
    Patent number: 9376136
    Abstract: A steering device includes: a steering shaft a column jacket that are telescopically adjustable in an axial direction; a lock plate provided with a plurality of holes and a plurality of partition portions arranged in the axial direction; and a tooth that advances to and retreats from the lock plate, and that is engaged with one of the holes of the lock plate. The steering shaft includes a first end to which a steering member is mounted and a second end. The partition portions are provided such that a height of a first end-side partition portion in a direction toward the tooth retreated from the lock plate is greater than that of a second end-side partition portion positioned on a second end side of the first end-side partition portion.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: June 28, 2016
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, FUJI KIKO CO., LTD.
    Inventors: Yoshihito Yoshihara, Tomonori Sugiura, Yuji Takahashi, Atsumune Nagatani, Tatsuro Kubota, Shigeru Hoshino, Yota Uesaka
  • Chain for continuously variable transmission
    Patent number: 9377081
    Abstract: Adjacent chain elements transmit a tension by allowing two pins to contact each other. When a chain which has been in a linear state starts to bend, a contact point moves from one point to another. Such movement of the contact point generates a force couple. This force couple causes the rear end of the chain element to move in a lifted manner. An increasing rate of this amount of movement with respect to a relative angle to an adjacent chain element is set such that the increasing rate is small when the relative angle is small, and becomes larger when the relative angle becomes larger.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: June 28, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Teruhiko Nakazawa, Shinji Yasuhara, Taizou Wakayama
  • Steering device
    Patent number: 9376135
    Abstract: A steering device includes a steering column capable of a telescopic adjustment, a support bracket provided with an insertion hole, a movable tooth member fitted into the insertion hole with play in an axial direction, and a stationary tooth member arranged so as to face the movable tooth member. The movable tooth member has a first tooth, and is elastically displaceable to both sides in the axial direction from a predetermined neutral position. The stationary tooth member with a second tooth engageable with the first tooth is moved in a lateral direction to be brought into contact with the movable tooth member and to be separated therefrom. As a result, the second tooth is allowed to engage with the first tooth, and engagement between the first tooth and the second tooth is released.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 28, 2016
    Assignees: JTEKT CORPORATION, FUJI KIKO CO., LTD.
    Inventor: Toru Sakata
  • Ball screw deflector
    Patent number: 9377092
    Abstract: In an electric power steering system, there is provided a ball screw deflector configured to make it possible to easily measure the whole length of each of deflector pieces. A mating face of each of the deflector pieces and end faces of the deflector pieces are parallel to each other, and have an angle corresponding to a lead angle of a ball screw portion. Thus, it is possible to reduce the amount of material required to form each of the deflector piece pieces. In addition, it is possible to easily measure the overall length of each of the deflector pieces with the use of measuring equipment such as a vernier caliper.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: June 28, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Toshihiro Asakura, Tetsuya Kaneko, Satoshi Fujita
  • Steering device
    Patent number: 9376137
    Abstract: A steering device includes: a steering shaft and a column jacket that are telescopically adjustable in an axial direction; a lock plate provided with a plurality of holes; a lock mechanism that moves a tooth such that the tooth advances to the lock plate to be engaged with one of the holes, and retreats from the lock plate to be disengaged from the hole. The lock plate includes a bent portion as a stopper at an end portion of the lock plate in the axial direction, and the stopper restricts a movement of an upper jacket relative to a lower jacket in the axial direction by abutting on the lock mechanism in the axial direction when the steering shaft and the column jacket is telescopically adjusted.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: June 28, 2016
    Assignees: JTEKT CORPORATION, Toyota Jidosha Kabushiki Kaisha, Fuji Kiko Co., Ltd.
    Inventors: Yoshihito Yoshihara, Tomonori Sugiura, Yuji Takahashi, Atsumune Nagatani, Tatsuro Kubota, Shigeru Hoshino, Yota Uesaka
  • STEERING DEVICE
    Publication number: 20160176435
    Abstract: A resin pin which is passed through a first resin-pin passing hole of a first plate, and a second resin-pin passing hole of a second plate to couple the second plate to a predetermined position of the first plate is sheared in a secondary collision, and causes the second plate to release from the predetermined position in a column movement direction. A slide plate which extends along the upper surface of the first plate has a resin-pin visual check hole. A highly hard collar is received by the second plate, placed in the first resin-pin passing hole, and fitted to a shaft portion of the resin pin. In the resin pin, axial elastic projections which apply a pressing and urging force to the slide plate are disposed at positions avoiding a range where, in a secondary collision, the resin-pin visual check hole is passed in the column movement direction.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 23, 2016
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Eiji TANAKA, Susumu MAGAKI, Shigeru HOSHINO, Shunsuke NUNOMURA
  • STEERING DEVICE
    Publication number: 20160176433
    Abstract: A movable teeth row formed member is supported so as not only to move together with an operation shaft in a position adjusting direction but also to rotate around a pivot shaft which is parallel to the operation shaft in a first rotating direction and a second rotating direction. A lock biasing mechanism causes the movable teeth row formed member in the first rotating direction via an elastic member as an operation lever is operated to rotate in a locking direction, so that a movable teeth row is caused to move towards a fixed teeth row for meshing engagement with the fixed teeth row.
    Type: Application
    Filed: July 31, 2014
    Publication date: June 23, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Ryota OKANO, Masayuki NAGAOKA, Yota UESAKA
  • CHAIN FOR CONTINUOUSLY VARIABLE TRANSMISSION
    Publication number: 20160178032
    Abstract: Three links within one width-direction unit are included in respectively different link units. The links in the first row and the sixth row from the right end and the left end of a chain are included in the same link unit. The links in the second row and the fifth row are included in the same link unit. The links in the ninth row and the tenth row are included in the same link unit other than the link unit in which the links in the second row and the fifth row are included. With the above structure, the stress amplitude of the links forming a chain for a chain-type continuously variable transmission can be reduced.
    Type: Application
    Filed: February 25, 2016
    Publication date: June 23, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Teruhiko NAKAZAWA, Ichiro TARUTANI, Yuji NAGASAWA, Shinji YAMANE, Keisuke MORI
  • ELECTRIC POWER STEERING DEVICE
    Publication number: 20160176438
    Abstract: An electric power steering device includes a restricting portion that is provided on at least one of surfaces of a housing and a worm wheel, the surfaces facing each other. The restricting portion is configured to restrict movement of the worm wheel to maintain a meshing relationship between a worm and the worm wheel that allows torque transmission between the worm and the worm wheel, when fixing of the worm wheel to an output shaft of a power assist actuator in an axial direction of the output shaft is released and the worm wheel is moved in the axial direction.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 23, 2016
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki SUZUKI, Shingo OUGITA, Tatsuya KAWAI, Toshinobu MAEDA, Naohiro SATO, Yasutaka FUKUMOTO
  • Drive circuit device
    Patent number: 9373560
    Abstract: A drive circuit device includes a circuit board having a multilayer structure, which includes first to fourth circuit conductor layers, and first to third insulating layers; and heat sinks that dissipate heat of the circuit board to an outside. An upper FET state is embedded in the first insulating layer, and a lower FET state is embedded in the second insulating layer. The upper FET and the lower FET are disposed so that a region in which the upper FET is positioned and a region in which the lower FET is positioned overlap each other in a stacking direction. A lead-out portion is formed at a second circuit pattern of the circuit conductor layer, the lead-out portion extending from the circuit board in a direction orthogonal to the stacking direction, and being connected to the heat sinks so that heat is transferred to the heat sinks.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 21, 2016
    Assignee: JTEKT CORPORATION
    Inventor: Nobuhiro Uchida
  • Flexible manufacturing system
    Patent number: 9370849
    Abstract: A flexible manufacturing system that makes it possible to give a higher priority to machining of a workpiece that is a super-urgent item is provided. When a pallet to which a workpiece, which is a super-urgent item, is attached is loaded on a loading station, a second controller gives a command to a conveyor to convey a pallet to which a workpiece, which is a normal item, is attached and which is located at a standby position of a pallet changer to a pallet storage room. Then, the second controller controls the conveyor to convey the pallet to which the workpiece, which is the super-urgent item, is attached and which is loaded on the loading station to the standby position.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: June 21, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Katsuhiro Maseki, Kazuhiro Tsujimura, Masanori Ando, Takaaki Sugiura
  • STEERING SYSTEM
    Publication number: 20160167693
    Abstract: A steering system includes a column jacket that can extend and contract in an axial direction as a result of relative movement between an inner jacket and an outer jacket that houses the inner jacket, a regulation member fixed to the outer jacket and passing through an insertion hole in the inner jacket, and an elastic member fixed to the outer jacket. At the time of vehicular collision, when the regulation member is sheared by a peripheral portion of the insertion hole in the inner jacket in conjunction with the relative movement between the inner jacket and the outer jacket, a tip portion of the elastic member is fitted in the insertion hole.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 16, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Masayoshi SAKUDA, Michiaki YAMAOKA, Ryota OKANO
  • WIND POWER GENERATOR DEVICE AND ROTATION TRANSMISSION DEVICE USED IN SAME
    Publication number: 20160169201
    Abstract: A wind power generator device includes: a windmill which rotates by receiving wind power; a power generator including a rotor; and a rotation transmission device which transmits rotation of the windmill to the rotor without a speed increase. The rotation transmission device includes a one-way clutch which makes a connection integrally and rotatably between the windmill and the rotor in a state in which a rotation speed of the windmill is higher than a rotation speed of the rotor, and which releases the connection in a state in which the rotation speed of the windmill is lower than the rotation speed of the rotor.
    Type: Application
    Filed: August 4, 2014
    Publication date: June 16, 2016
    Applicant: JTEKT CORPORATION
    Inventor: Hideki FUJIWARA
  • STEERING SYSTEM
    Publication number: 20160167691
    Abstract: A steering system includes an upper jacket that is movable in an axial direction, a first stopper member fixed to the upper jacket, and a second stopper member on a vehicle body. When a lock and unlock mechanism unlocks the upper jacket, the second stopper member moves to an advanced position where the second stopper member faces the first stopper member in the axial direction. When the lock and unlock mechanism locks the upper jacket, the second stopper member moves to a retracted position where the second stopper member retracts from the advanced position.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 16, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Susumu IMAGAKI, Ryota OKANO, Masayoshi SAKUDA, Yuji TAKAHASHI, Tomonori SUGIURA, Shoji ISHIMURA, Tatsuro KUBOTA
  • TAPERED ROLLER BEARING AND POWER TRANSMISSION DEVICE USING TAPERED ROLLER BEARING
    Publication number: 20160169285
    Abstract: A tapered roller bearing including: an inner ring; an outer ring; a plurality of tapered rollers; and a retainer. A small diameter side annular portion is formed in an end portion of the retainer located on a small diameter side of an inner ring raceway surface. A seal member having hardness lower than that of the retainer is provided on the small diameter side annular portion. The seal member includes a lip portion which slide-contacts or is positioned close to at least one circumferential surface of an outer circumferential surface of the inner ring and an inner circumferential surface of the outer ring.
    Type: Application
    Filed: July 18, 2014
    Publication date: June 16, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Shigeaki FURUSAWA, Hiroshi TACHI
  • STEERING DEVICE
    Publication number: 20160167696
    Abstract: There is provided a steering device having a configuration in which a movable bracket can move relatively to a fixed bracket along with a steering member toward the downstream side in a movement direction, at the time of the second collision. A sliding member that is assembled to the movable bracket includes a main body section and a bent section. The main body section is provided, in the movement direction, over an entire length of a top surface of the movable bracket, which faces the fixed bracket, is inserted between the top surface and the fixed bracket, and rubs against the fixed bracket at the time of the second collision. The bent portion is latched to the movable bracket from the downstream side in the movement direction.
    Type: Application
    Filed: August 20, 2014
    Publication date: June 16, 2016
    Applicant: JTEKT CORPORATION
    Inventor: Eiji TANAKA
  • Driving Force Transmission Device
    Publication number: 20160169300
    Abstract: A driving force transmission device includes an inner ring; an outer ring; a roller pair constituted by a first roller and a second roller; an elastic member; a first cage including a first pressing portion; a second cage including a second pressing portion; a first guide member; a second guide member; and an electromagnetic clutch including an armature connected to the first and second guide members. Along with rotation of the first cage toward the circumferential second side, the first pressing portion presses the first roller toward the circumferential second side. Along with rotation of the second cage toward the circumferential first side, the second pressing portion presses the second roller toward the circumferential first side.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 16, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Tomoya YAMATANI, Gento ARAMOTO, Tsuyoshi OKUMURA
  • Vehicle differential gear
    Patent number: 9366333
    Abstract: A vehicle differential gear includes first and second pinion gears rotatably supported by a differential case; first and second side gears meshing with the first and second pinion gears and each coupled to corresponding one of a pair of output shafts; and a center washer, a first end washer and a second end washer each having a sliding surface that slides with an axial end face of at least one side gear of the first or second side gears, the sliding surface being lubricated by a lubricating oil; wherein a surface treatment for enhancing a solid lubricating property is performed on the washers.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: June 14, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Takuya Tsuda, Akinao Minegishi, Kenji Kushizaki
  • Hydrostatic fluid guide device
    Patent number: 9366305
    Abstract: In a hydrostatic fluid guide device, a damping mechanism is provided. A fluid is supplied to the damping mechanism by a hydrostatic pressure caused by natural fall, instead of being pressurized and supplied. Thus, it is possible to suppress a decrease in the pressure of the fluid in a hydrostatic fluid guide mechanism, and to position a movable body with high accuracy by setting rigidity for load support during linear movement of the movable body to a value substantially equal to a design value.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: June 14, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Hiroki Yamato, Yoshiaki Ando, Masayuki Takeshima