Patents by Inventor Teruyuki Wakisaka

Teruyuki Wakisaka 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: 10385922
    Abstract: A wheel bearing apparatus includes an outer ring, an inner shaft member, rolling elements, a cage, and a sealing device. The sealing device includes an annular slinger and a sealing member. The slinger has a first inclined surface provided on a radially outer side and on a side facing the sealing member such that a diameter of the first inclined surface increases toward a first side in an axial direction. The sealing member has a second inclined surface provided on the radially outer side and on a side facing the slinger such that a diameter of the second inclined surface increases toward a second side in the axial direction. The second inclined surface intersects with a virtual extension surface extending radially outwardly along the first inclined surface, and the second inclined surface is continuous with an inner peripheral surface of the radially outer portion.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: August 20, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Yuya Inoue, Takuya Toda, Teruyuki Wakisaka, Takafumi Uemoto, Chiyoko Furuta
  • Publication number: 20190184740
    Abstract: A hub unit that is to be installed on a vehicle is provided with: an outer ring having, on the inner circumferential surface, a first outer raceway surface and a second outer raceway surface that is disposed to the outside of the first outer raceway surface in the vehicle width direction when the hub unit is installed on the vehicle; an inner shaft that is disposed on the inside of the outer ring concentrically with the outer ring and on which a wheel is installed on the outer end in the vehicle width direction; and an inner ring that is press-fitted to the inner shaft on the inner end in the vehicle width direction.
    Type: Application
    Filed: September 12, 2017
    Publication date: June 20, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Yuya INOUE, Takaaki ONIZUKA, Toshihiro HAKATA, Teruyuki WAKISAKA, Takuya TODA
  • Publication number: 20190017551
    Abstract: A wheel bearing apparatus includes an outer ring, an inner shaft member, rolling elements, a cage, and a sealing device. The sealing device includes an annular slinger and a sealing member. The slinger has a first inclined surface provided on a radially outer side and on a side facing the sealing member such that a diameter of the first inclined surface increases toward a first side in an axial direction. The sealing member has a second inclined surface provided on the radially outer side and on a side facing the slinger such that a diameter of the second inclined surface increases toward a second side in the axial direction. The second inclined surface intersects with a virtual extension surface extending radially outwardly along the first inclined surface, and the second inclined surface is continuous with an inner peripheral surface of the radially outer portion.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 17, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Yuya INOUE, Takuya TODA, Teruyuki WAKISAKA, Takafumi UEMOTO, Chiyoko FURUTA
  • Patent number: 10180160
    Abstract: A hub unit includes an outer ring, an inner shaft, rolling elements and a sealing device. The outer ring includes an outer ring body and an outer ring flange. The inner shaft includes an inner shaft body and an inner shaft flange. The outer ring body includes a first portion and a second portion. The first portion is an end part on the outer side of the outer ring body. The second portion is a part of the outer ring body between the first portion and the outer ring flange. The second portion includes an upper build-up portion. The upper build-up portion is formed in an upper part of the second portion and a thickness of the build-up portion is larger than thicknesses of side parts of the second portion. An upper end of the upper build-up portion is higher than an upper end of the first portion.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: January 15, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Yuya Inoue, Takaaki Onizuka, Toshihiro Hakata, Teruyuki Wakisaka, Takuya Toda
  • Publication number: 20180354171
    Abstract: A production method for a cover attached to an outer ring of a hub unit including procedures as follows. A nut is supported by a first protrusion of a first mold. By a second protrusion of a second mold, a core bar including a cylindrical section to be inserted into the outer ring is supported. A resin material is injected into a cavity formed by the first mold and the second mold to form a cover including a nut and a core bar. The cover is detached from the second mold by moving the first mold in a direction of being separated from the second mold. After this, the cover is detached from the first mold by pushing out the cover in a die matching direction with a pin disposed in the first mold.
    Type: Application
    Filed: November 10, 2016
    Publication date: December 13, 2018
    Applicant: JTEKT CORPORATION
    Inventors: Yoichiro SANKAI, Teruyuki WAKISAKA, Akihiro TAKEUCHI
  • Publication number: 20180345550
    Abstract: A production method for a cover attached to an outer ring of a hub unit first prepares a first mold and a second mold which form a cavity filled with a resin material. Next, by a protrusion of the first mold, a nut is supported. Next, when viewed from an axial direction of the nut, in a state where at least a part of the gate of the second mold overlaps an inside of the nut as compared with an outer circumferential surface of the nut, the first mold and the second mold are die-matched. Then, a resin material is injected into the cavity.
    Type: Application
    Filed: November 10, 2016
    Publication date: December 6, 2018
    Applicant: JTEKT Corporation
    Inventors: Yoichiro SANKAI, Teruyuki WAKISAKA, Akihiro TAKEUCHI
  • Patent number: 10087985
    Abstract: A rolling device for a vehicle includes an inner raceway member including first and second inner raceways; an outer raceway member including first and second outer raceways; first rolling elements disposed rollably between the first inner raceway and the first outer raceway and second rolling elements disposed rollably between the second inner raceway and the second outer raceway; and grease disposed on raceway surfaces of the first inner raceway, the first outer raceway, the second inner raceway, and the second outer raceway and rolling surfaces of the first rolling elements and the second rolling elements. The grease includes a base oil, a thickener, and additives. The grease includes a synthetic oil as the base oil. A kinematic viscosity of the base oil at 40° C. is 20 mm2/s to 50 mm2/s. The additives include a phosphorus compound, a calcium compound, and a hydrocarbon wax.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 2, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Yuya Inoue, Tsuyoshi Okumura, Teruyuki Wakisaka, Yoshiyuki Ina, Toshihiro Hakata, Takaaki Onizuka
  • Publication number: 20180087569
    Abstract: A rolling device for a vehicle includes an inner raceway member including first and second inner raceways; an outer raceway member including first and second outer raceways; first rolling elements disposed rollably between the first inner raceway and the first outer raceway and second rolling elements disposed rollably between the second inner raceway and the second outer raceway; and grease disposed on raceway surfaces of the first inner raceway, the first outer raceway, the second inner raceway, and the second outer raceway and rolling surfaces of the first rolling elements and the second rolling elements. The grease includes a base oil, a thickener, and additives. The grease includes a synthetic oil as the base oil. A kinematic viscosity of the base oil at 40° C. is 20 mm2/s to 50 mm2/s. The additives include a phosphorus compound, a calcium compound, and a hydrocarbon wax.
    Type: Application
    Filed: July 26, 2017
    Publication date: March 29, 2018
    Applicant: JTEKT CORPORATION
    Inventors: Yuya INOUE, Tsuyoshi OKUMURA, Teruyuki WAKISAKA, Yoshiyuki INA, Toshihiro HAKATA, Takaaki ONIZUKA
  • Publication number: 20180066699
    Abstract: A hub unit includes an outer ring, an inner shaft, rolling elements and a sealing device. The outer ring includes an outer ring body and an outer ring flange. The inner shaft includes an inner shaft body and an inner shaft flange. The outer ring body includes a first portion and a second portion. The first portion is an end part on the outer side of the outer ring body. The second portion is a part of the outer ring body between the first portion and the outer ring flange. The second portion includes an upper build-up portion. The upper build-up portion is formed in an upper part of the second portion and a thickness of the build-up portion is larger than thicknesses of side parts of the second portion. An upper end of the upper build-up portion is higher than an upper end of the first portion.
    Type: Application
    Filed: August 25, 2017
    Publication date: March 8, 2018
    Applicant: JTEKT CORPORATION
    Inventors: Yuya INOUE, Takaaki ONIZUKA, Toshihiro HAKATA, Teruyuki WAKISAKA, Takuya TODA
  • Patent number: 9475343
    Abstract: A sealing device includes a core metal that is fitted to the outer ring, and a sealing member that is fixed to the core metal. The core metal has a cylindrical portion that is fitted to the inner periphery of an end portion of the outer ring, an outer annular portion, and an inner annular portion. The sealing member has a covering portion that covers the outer annular portion and the cylindrical portion, and a space is formed between the covering portion and the flange. The sealing member further has an inner lip portion, and an outer lip portion. The covering portion has a deformed portion used to enlarge the space to suppress stagnation of water in the space.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: October 25, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Teruyuki Wakisaka, Kazuki Takamatsu
  • Publication number: 20150110432
    Abstract: A sealing device includes a core metal that is fitted to the outer ring, and a sealing member that is fixed to the core metal. The core metal has a cylindrical portion that is fitted to the inner periphery of an end portion of the outer ring, an outer annular portion, and an inner annular portion. The sealing member has a covering portion that covers the outer annular portion and the cylindrical portion, and a space is formed between the covering portion and the flange. The sealing member further has an inner lip portion, and an outer lip portion. The covering portion has a deformed portion used to enlarge the space to suppress stagnation of water in the space.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Inventors: Teruyuki WAKISAKA, Kazuki TAKAMATSU
  • Publication number: 20060186627
    Abstract: A sensor device 4 has a resolver comprising a stator 21 provided on a suspension member 1 and a rotor 31 provided on an axle member 2. The axle member 2 comprises a drive shaft 11 to be connected to a power transmission, and a hub shaft 12 having a wheel mount portion 13 and fixed to the drive shaft 11. The stator 21 is provided by a press fit on an axial end of knuckle 1a of the suspension member 1 toward a wheel, and the rotor 31 is provided by a press fit on the hub shaft 12 of the axle member 2. The stator 21 and the rotor 31 are opposed to each other radially thereof. An antifriction bearing 3 has rolling bodies 7 in left and right two rows, an outer ring 5 in the form of an integral ring having two raceways, and divided inner rings 6 each having a single raceway.
    Type: Application
    Filed: March 10, 2003
    Publication date: August 24, 2006
    Inventors: Katsura Koyagi, Teruyuki Wakisaka, Masahiro Inoue
  • Patent number: 7048341
    Abstract: A bearing device for an axle: including a hub wheel; a flange outwardly provided in an outer periphery of the hub wheel in a radial direction; and bolts having serrations provided at their heads. The flange includes through holes formed therein in its circumferential direction such as to pass therethrough in its axial direction, the bolts are attached into the through holes, respectively, in a state where their serrations bite the through holes of the flange, and an annular groove for reducing a biting amount of the serrations of the bolt is formed in an inner peripheral surface of the through hole of the flange.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: May 23, 2006
    Assignee: Koyo Seiko Co., Ltd
    Inventors: Teruyuki Wakisaka, Shigetaka Ashida, Shinichirou Kashiwagi, Shinnosuke Takasaki
  • Patent number: 6993844
    Abstract: A bearing apparatus includes a hollow shaft provided around an outer peripheral surface with a bearing fitting region, and a rolling bearing having an inner ring fitted around the bearing fitting region of the hollow shaft. A shaft end of the hollow shaft is bent outwardly in a diametrical direction, thereby being caulked on an outer end surface of the inner ring. The bearing fitting region has a hardened layer in a region from a first position corresponding to an inner end surface of the inner ring of the rolling bearing to a second position before a position corresponding to an outer end surface of the inner ring, and has a non-hardened layer in another region from the outer end surface corresponding position of the inner ring to the shaft end. The second position representative of a caulked side end portion of the hardened layer is defined based on a predetermined relational expression.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: February 7, 2006
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kazutoshi Toda, Masahiro Inoue, Kenji Takahashi, Teruyuki Kawatani, Shinichirou Kashiwagi, Teruyuki Wakisaka, Tadashi Mitarai
  • Patent number: 6880247
    Abstract: A bearing is mounted on a hollow shaft of a hub wheel. A shaft end of the hollow shaft is deformed radially outward and caulked to an outer end face of an inner ring of the bearing. Between a first area in which a spline portion is formed and a second area in which a caulked portion is formed, between a bending starting point for bending the shaft end radially outward and an end face of the shaft end on an inner peripheral face of the hollow shaft, a third area for suppressing deformation of the inner peripheral face of the hollow shaft caused by the caulking is formed. The third area cushions deformation in the first area.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: April 19, 2005
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kazutoshi Toda, Teruyuki Wakisaka, Kenji Takahashi, Teruyuki Kawatani, Shinichirou Kashiwagi
  • Publication number: 20050073190
    Abstract: A bearing device for an axle including a hub wheel; a flange outwardly provided in an outer-periphery of the hub wheel in a radial direction; and bolts having serrations provided at their heads. The flange includes through holes formed therein in its circumferential direction such as to pass therethrough ill its axial direction, the bolts are attached into the through holes, respectively, in a state where their serrations bite the trough holes of the flange, and an annular groove for reducing a biting amount of the serrations of the bolt is formed in an inner peripheral surface of the through hole of the flange.
    Type: Application
    Filed: February 6, 2003
    Publication date: April 7, 2005
    Inventors: Teruyuki Wakisaka, Shigetaka Ashida, Shinichirou Kashiwagi, Shinnosuke Takasaki
  • Patent number: 6832854
    Abstract: A rolling bearing device comprising an outer ring member, an inner ring member concentric with the outer ring member in the diameter direction, a plurality of rolling elements disposed so as to freely roll between the outer ring member and the inner ring member, and an axial member which is inserted into the center hole of the inner ring member and which has a flange outward in the diameter direction on the outer peripheral surface thereof, wherein the inner ring member has a curved chamfer on its end surface on the inner peripheral surface side thereof, the axial member is caulked to the end surface of the inner ring member, the amount of decentering between the center of the inner ring members in the diameter direction and the center of the chamfer in the diameter direction is set to the range of over 0 &mgr;m and not more than 200 &mgr;m.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: December 21, 2004
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Takahiro Umekawa, Teruyuki Wakisaka, Shinichirou Kashiwagi
  • Patent number: D843895
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: March 26, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Yuya Inoue, Takaaki Onizuka, Toshihiro Hakata, Teruyuki Wakisaka, Takuya Toda
  • Patent number: D845183
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: April 9, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Yuya Inoue, Teruyuki Wakisaka, Takaaki Onizuka, Takuya Toda
  • Patent number: D845843
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 16, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Yuya Inoue, Takaaki Onizuka, Toshihiro Hakata, Teruyuki Wakisaka, Takuya Toda