Patents by Inventor Chang-Wook Son

Chang-Wook Son 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: 11613300
    Abstract: Disclosed is a steering apparatus including: a mounting housing which is formed on one side of a rack housing and has first threads formed on an inner circumferential surface thereof; a yoke body which is provided inside the mounting housing and supports a rack bar located inside the rack housing; and a pressing member which is provided inside the mounting housing, has second threads formed on an outer circumferential surface thereof, and is coupled to the mounting housing in a state in which the second threads are coupled to the first threads and are separated from the yoke body.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: March 28, 2023
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Chang Wook Son
  • Patent number: 11199218
    Abstract: A rack bush of a steering device for a vehicle may include: a bush body part installed in a rack housing of the steering device for a vehicle so as to cover a rack bar, and configured to guide the rack bar to move in an axial direction; a first uneven part formed in an uneven shape on an outer circumferential surface of the bush body part, and configured to bring the bush body part and the rack housing into line contact with each other; and a position fixing part formed at one end of the bush body part, and configured to prevent the bush body part from moving in the axial direction.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: December 14, 2021
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Chang Wook Son
  • Patent number: 11118623
    Abstract: Disclosed herein is a rack bush for vehicle steering apparatus, which includes a bush body having an outer peripheral surface that is in contact with an inner surface of a rack housing and an inner peripheral surface that is in contact with a rack bar, the bush body being configured to guide longitudinal movement of the rack bar, the bush body including a large diameter portion and a small diameter portion, a plurality of slits arranged on the bush body in a circumferential direction thereof, and a damper mounted to the bush body and configured to absorb an impact occurring between the rack bar and the bush body.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: September 14, 2021
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Chang Wook Son
  • Publication number: 20210163059
    Abstract: Disclosed is a steering apparatus including: a mounting housing which is formed on one side of a rack housing and has first threads formed on an inner circumferential surface thereof; a yoke body which is provided inside the mounting housing and supports a rack bar located inside the rack housing; and a pressing member which is provided inside the mounting housing, has second threads formed on an outer circumferential surface thereof, and is coupled to the mounting housing in a state in which the second threads are coupled to the first threads and are separated from the yoke body.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 3, 2021
    Inventor: Chang Wook SON
  • Publication number: 20210140471
    Abstract: Disclosed herein is a rack bush for vehicle steering apparatus, which includes a bush body having an outer peripheral surface that is in contact with an inner surface of a rack housing and an inner peripheral surface that is in contact with a rack bar, the bush body being configured to guide longitudinal movement of the rack bar, the bush body including a large diameter portion and a small diameter portion, a plurality of slits arranged on the bush body in a circumferential direction thereof, and a damper mounted to the bush body and configured to absorb an impact occurring between the rack bar and the bush body.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 13, 2021
    Inventor: Chang Wook SON
  • Publication number: 20200386266
    Abstract: A rack bush of a steering device for a vehicle may include: a bush body part installed in a rack housing of the steering device for a vehicle so as to cover a rack bar, and configured to guide the rack bar to move in an axial direction; a first uneven part formed in an uneven shape on an outer circumferential surface of the bush body part, and configured to bring the bush body part and the rack housing into line contact with each other; and a position fixing part formed at one end of the bush body part, and configured to prevent the bush body part from moving in the axial direction.
    Type: Application
    Filed: March 12, 2020
    Publication date: December 10, 2020
    Inventor: Chang Wook SON
  • Patent number: 10059365
    Abstract: A tilting structure for providing a force for tilting a worm shaft of an electric power steering apparatus to a worm wheel includes: a guide block which is inserted into an insertion space of a housing of the electric power steering apparatus; an elastic member which is disposed within the guide block; and a plug which is movably disposed within the guide block and is elastically supported by the elastic member to exert a tilting force to a bearing which supports the worm shaft. The plug and the guide block are configured to be able to be connected to one another via a thread coupling.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: August 28, 2018
    Assignee: erae AMS Co., Ltd.
    Inventors: Se-Jung Park, Chang-Wook Son, Bong-Ju Kim, Seong-Nam Kim
  • Publication number: 20170190352
    Abstract: A tilting structure for providing a force for tilting a worm shaft of an electric power steering apparatus to a worm wheel includes: a guide block which is inserted into an insertion space of a housing of the electric power steering apparatus; an elastic member which is disposed within the guide block; and a plug which is movably disposed within the guide block and is elastically supported by the elastic member to exert a tilting force to a bearing which supports the worm shaft. The plug and the guide block are configured to be able to be connected to one another via a thread coupling.
    Type: Application
    Filed: May 22, 2015
    Publication date: July 6, 2017
    Inventors: Se-Jung PARK, Chang-Wook SON, Bong-Ju KIM, Seong-Nam KIM
  • Patent number: 9638297
    Abstract: A rack bar supporting device is a device for supporting a rack bar of a steering apparatus of a vehicle toward a pinion shaft and includes a rack bearing and a biasing assembly. The biasing assembly includes an adjustment plug, an adjustment assembly and a support plate assembly. The adjustment assembly includes an adjustment member and a first biasing member. The support plate assembly includes a first support plate, a second support plate, a second biasing member which provides a force for pushing the first support plate along the biasing axis against the second support plate, and a connection structure which connects the first and the second support plates together so as to restrict movement of the second plate in a direction away from the rack bearing.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: May 2, 2017
    Assignee: ERAE AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Chang-Wook Son, Seong-Hun Bae, Min-Young Choi, Jin-Woong Lee, Je-Won Kim
  • Patent number: 9321477
    Abstract: A rack bar support device supports a rack bar of a steering device of a vehicle toward a pinion shaft, and includes a rack bearing which is disposed opposite the pinion to contact the rack bar and a biasing assembly providing a force of pushing the rack bearing along a biasing axis toward the rack bar to urge the rack bearing to push the rack bar is engaged with the pinion shaft. The biasing assembly includes an adjustment plug, an adjustment assembly and a support plate assembly. The support plate assembly includes a support plate which is movably disposed between the adjustment member and the rack bearing in a state of being supported by the adjustment member, and a gap is formed between the support plate and the rack bearing.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: April 26, 2016
    Assignee: ERAE AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Seong-Hun Bae, Chang-Wook Son, Chung-Shin Lee, Jin-Woong Lee, Je-Won Kim
  • Publication number: 20150020619
    Abstract: A rack bar supporting device is a device for supporting a rack bar of a steering apparatus of a vehicle toward a pinion shaft and includes a rack bearing and a biasing assembly. The biasing assembly includes an adjustment plug, an adjustment assembly and a support plate assembly. The adjustment assembly includes an adjustment member and a first biasing member. The support plate assembly includes a first support plate, a second support plate, a second biasing member which provides a force for pushing the first support plate along the biasing axis against the second support plate, and a connection structure which connects the first and the second support plates together so as to restrict movement of the second plate in a direction away from the rack bearing.
    Type: Application
    Filed: March 4, 2013
    Publication date: January 22, 2015
    Applicant: KOREA DELPHI AUTOMOTIVE SYSTEMS CORPORATION
    Inventors: Chang-Wook Son, Seong-Hun Bae, Min-Young Choi, Jin-Woong Lee, Je-Won Kim
  • Publication number: 20140260719
    Abstract: A rack bar support device supports a rack bar of a steering device of a vehicle toward a pinion shaft, and includes a rack bearing which is disposed opposite the pinion to contact the rack bar and a biasing assembly providing a force of pushing the rack bearing along a biasing axis toward the rack bar to urge the rack bearing to push the rack bar is engaged with the pinion shaft. The biasing assembly includes an adjustment plug, an adjustment assembly and a support plate assembly. The support plate assembly includes a support plate which is movably disposed between the adjustment member and the rack bearing in a state of being supported by the adjustment member, and a gap is formed between the support plate and the rack bearing.
    Type: Application
    Filed: September 6, 2012
    Publication date: September 18, 2014
    Applicant: KOREA DELPHI AUTOMOTIVE SYSTEMS CORPORATION
    Inventors: Seong-Hun Bae, Chang-Wook Son, Chung-Shin Lee, Jin-Woong Lee, Je-Won Kim