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).
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Patent number: 11613300Abstract: 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: GrantFiled: November 30, 2020Date of Patent: March 28, 2023Assignee: Hyundai Mobis Co., Ltd.Inventor: Chang Wook Son
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Patent number: 11199218Abstract: 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: GrantFiled: March 12, 2020Date of Patent: December 14, 2021Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Chang Wook Son
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Patent number: 11118623Abstract: 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: GrantFiled: March 12, 2020Date of Patent: September 14, 2021Assignee: Hyundai Mobis Co., Ltd.Inventor: Chang Wook Son
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Publication number: 20210163059Abstract: 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: ApplicationFiled: November 30, 2020Publication date: June 3, 2021Inventor: Chang Wook SON
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Publication number: 20210140471Abstract: 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: ApplicationFiled: March 12, 2020Publication date: May 13, 2021Inventor: Chang Wook SON
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Publication number: 20200386266Abstract: 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: ApplicationFiled: March 12, 2020Publication date: December 10, 2020Inventor: Chang Wook SON
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Patent number: 10059365Abstract: 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: GrantFiled: May 22, 2015Date of Patent: August 28, 2018Assignee: erae AMS Co., Ltd.Inventors: Se-Jung Park, Chang-Wook Son, Bong-Ju Kim, Seong-Nam Kim
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Publication number: 20170190352Abstract: 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: ApplicationFiled: May 22, 2015Publication date: July 6, 2017Inventors: Se-Jung PARK, Chang-Wook SON, Bong-Ju KIM, Seong-Nam KIM
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Patent number: 9638297Abstract: 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: GrantFiled: March 4, 2013Date of Patent: May 2, 2017Assignee: ERAE AUTOMOTIVE SYSTEMS CO., LTD.Inventors: Chang-Wook Son, Seong-Hun Bae, Min-Young Choi, Jin-Woong Lee, Je-Won Kim
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Patent number: 9321477Abstract: 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: GrantFiled: September 6, 2012Date of Patent: April 26, 2016Assignee: ERAE AUTOMOTIVE SYSTEMS CO., LTD.Inventors: Seong-Hun Bae, Chang-Wook Son, Chung-Shin Lee, Jin-Woong Lee, Je-Won Kim
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Publication number: 20150020619Abstract: 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: ApplicationFiled: March 4, 2013Publication date: January 22, 2015Applicant: KOREA DELPHI AUTOMOTIVE SYSTEMS CORPORATIONInventors: Chang-Wook Son, Seong-Hun Bae, Min-Young Choi, Jin-Woong Lee, Je-Won Kim
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Publication number: 20140260719Abstract: 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: ApplicationFiled: September 6, 2012Publication date: September 18, 2014Applicant: KOREA DELPHI AUTOMOTIVE SYSTEMS CORPORATIONInventors: Seong-Hun Bae, Chang-Wook Son, Chung-Shin Lee, Jin-Woong Lee, Je-Won Kim