Patents by Inventor Suguru Sugishita
Suguru Sugishita 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: 11970204Abstract: A steering device includes a steering column for supporting a steering shaft coupled to a steering wheel; an upper bracket fixed to a vehicle body and supports the steering column; and two lower brackets independently fixed to the vehicle body on both sides of the steering column to support the steering column in such a manner that allows the steering column to sway in a vertical direction. The lower brackets each includes a fixed portion facing the vehicle body and disposed on an outside of the steering column in a vehicle width direction, a pivot portion facing the steering column and having an attachment hole into which a pin member for coupling the steering column to the lower bracket is inserted, and a pair of rib portions each connected to the fixed portion and the pivot portion by a bent portion shaped into a bent plate.Type: GrantFiled: March 25, 2021Date of Patent: April 30, 2024Assignee: NSK LTD.Inventors: Yoshiyuki Sato, Tomohiro Ikuta, Suguru Sugishita, Hirotaka Shimizu
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Publication number: 20240116557Abstract: A steering device includes a cylindrical steering column that extends in an axial direction. The steering column includes: an upper column; a lower column; and a fixing member. The fixing member includes a cylindrical part, and the cylindrical part includes: a small diameter part that is fitted to the lower column; a curved part that has an outer circumferential surface whose outer diameter increases toward the other side in the axial direction; and a large diameter part whose outer diameter is larger than an outer diameter of the small diameter part.Type: ApplicationFiled: July 2, 2022Publication date: April 11, 2024Applicant: NSK Ltd.Inventors: Suguru SUGISHITA, Hirotaka SHIMIZU, Kouhei TAKEISHI
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Publication number: 20240109580Abstract: A steering device includes: a steering shaft which extends along a central axis and to which a steering wheel is coupled on one side in an axial direction; a tubular steering column which is disposed on an outer circumferential side of the steering shaft and extends in the axial direction; and a gearbox which is disposed on the other side in the axial direction of the steering column and is fixed to the steering column. The steering column includes a fixing member provided at an end on the other side in the axial direction and fixed to the gearbox, and an outer circumferential surface on one side in the axial direction of the fixing member has an outer diameter which increases toward the other side in the axial direction.Type: ApplicationFiled: February 2, 2022Publication date: April 4, 2024Applicant: NSK LTD.Inventors: Suguru SUGISHITA, Hirotaka SHIMIZU, Kouhei TAKEISHI
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Patent number: 11912333Abstract: A steering device includes a steering shaft, a steering column, a bracket, and a fastening mechanism. An upper column includes a clamp, a cylindrical part, a pair of protrusions, and contact ribs. The clamp includes a continuous clamp and a spaced clamp. The protrusions include a continuous protrusion and a spaced protrusion. The contact ribs include first contact ribs disposed each of which is disposed on the outer peripheral surface of the clamp, second contact ribs each of which is disposed on a side surface of the protrusion and disposed opposite to the first contact rib with respect to a long groove, and at least one third contact rib disposed on a side surface of the spaced protrusion and between the first contact rib and the long groove. The third contact rib has a protrusion amount greater than those of the first contact rib and the second contact rib.Type: GrantFiled: March 25, 2021Date of Patent: February 27, 2024Assignee: NSK LTD.Inventors: Tomohiro Ikuta, Yoshiyuki Sato, Suguru Sugishita, Hirotaka Shimizu
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Publication number: 20230143959Abstract: The steering device includes a steering shaft, a steering column, a bracket, and a fastening mechanism. The steering column includes a lower column and an upper column. The upper column includes a clamp, a cylindrical part, a pair of protrusions, and a reinforcement rib that extends across an outer peripheral surface of the clamp and an outer surface of one of the protrusions. The clamp includes a continuous clamp positioned near the cylindrical part and a spaced clamp spaced apart from the cylindrical part. The protrusions include a continuous protrusion that protrudes from the continuous clamp, and a spaced protrusion that protrudes from the spaced clamp. The reinforcement rib linearly extends from the spaced protrusion toward the continuous clamp.Type: ApplicationFiled: March 25, 2021Publication date: May 11, 2023Applicant: NSK LTD.Inventors: Tomohiro IKUTA, Yoshiyuki SATO, Suguru SUGISHITA, Hirotaka SHIMIZU
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Publication number: 20230143956Abstract: A steering device includes a telescopic steering shaft that extends in a first direction, and a cylindrical outer steering column that rotatably supports the steering shaft. The steering column includes a lower column and an upper column having one end slidably attached to the lower column and the other end on which a bearing that supports the steering shaft is provided. The upper column includes a clamp that is externally slidably fitted to the lower column and that has a slit extending in the first direction, and a cylindrical part that has a cylindrical shape and that has one end continuous with the clamp and the other end blocked by the bearing being internally fitted. The cylindrical part has an air hole that is spaced apart from the one end of the cylindrical part and that penetrates an outer peripheral surface and an inner peripheral surface of the cylindrical part.Type: ApplicationFiled: March 25, 2021Publication date: May 11, 2023Applicant: NSK LTD.Inventors: Tomohiro IKUTA, Yoshiyuki SATO, Suguru SUGISHITA, Hirotaka SHIMIZU
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Publication number: 20230132450Abstract: A steering device includes a steering shaft, a steering column, a bracket, and a fastening mechanism. An upper column includes a clamp, a cylindrical part, a pair of protrusions, and contact ribs. The clamp includes a continuous clamp and a spaced clamp. The protrusions include a continuous protrusion and a spaced protrusion. The contact ribs include first contact ribs disposed each of which is disposed on the outer peripheral surface of the clamp, second contact ribs each of which is disposed on a side surface of the protrusion and disposed opposite to the first contact rib with respect to a long groove, and at least one third contact rib disposed on a side surface of the spaced protrusion and between the first contact rib and the long groove. The third contact rib has a protrusion amount greater than those of the first contact rib and the second contact rib.Type: ApplicationFiled: March 25, 2021Publication date: May 4, 2023Applicant: NSK LTD.Inventors: Tomohiro IKUTA, Yoshiyuki SATO, Suguru SUGISHITA, Hirotaka SHIMIZU
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Publication number: 20230125973Abstract: A steering device includes a steering column for supporting a steering shaft coupled to a steering wheel; an upper bracket fixed to a vehicle body and supports the steering column; and two lower brackets independently fixed to the vehicle body on both sides of the steering column to support the steering column in such a manner that allows the steering column to sway in a vertical direction. The lower brackets each includes a fixed portion facing the vehicle body and disposed on an outside of the steering column in a vehicle width direction, a pivot portion facing the steering column and having an attachment hole into which a pin member for coupling the steering column to the lower bracket is inserted, and a pair of rib portions each connected to the fixed portion and the pivot portion by a bent portion shaped into a bent plate.Type: ApplicationFiled: March 25, 2021Publication date: April 27, 2023Applicant: NSK LTD.Inventors: Yoshiyuki SATO, Tomohiro IKUTA, Suguru SUGISHITA, Hirotaka SHIMIZU
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Patent number: 11591004Abstract: A bracket includes a first plate that faces a steering column, a second plate that faces a column cover covering the steering column, and a third plate that connects the first plate and the second plate, and a fourth plate that intersects with the first plate and the third plate.Type: GrantFiled: September 18, 2019Date of Patent: February 28, 2023Assignee: NSK LTD.Inventors: Suguru Sugishita, Hikaru Okabe
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Patent number: 11511788Abstract: The outer column has a press-fitted portion into which the inner column is press-fitted on the inner-diameter side, and an adjacent large diameter portion arranged in a location adjacent to the press-fitted portion in the axial direction and having an inner-diameter dimension larger than an inner-diameter dimension of the press-fitted portion. The inner-circumferential surface of the press-fitted portion and the outer-circumferential surface of the inner column come in contact with each other with an interference directly or via another member at only a plurality of contact locations separated in the circumferential direction. The column-side bracket is welded to an outer-circumferential surface of the adjacent large diameter portion with at least a part of the column-side bracket located on the outer-diameter side of the press-fitted portion.Type: GrantFiled: October 18, 2019Date of Patent: November 29, 2022Assignee: NSK Ltd.Inventors: Suguru Sugishita, Masaru Oosawa
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Patent number: 11498605Abstract: The front-side portion of an outer column includes a substantially cylindrical column main body portion having a pair of clamp portions and externally fitting with an inner column, and a reinforcing bridge portion that is integrally provided below the column main body portion. The front-side connecting portion of the reinforcing bridge portion includes a front-side inclined portion that inclines in a direction toward the front side going toward the upper side, and a rear-side connecting portion inclines in a direction toward the rear side going toward the upper side.Type: GrantFiled: November 13, 2019Date of Patent: November 15, 2022Assignee: NSK Ltd.Inventor: Suguru Sugishita
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Patent number: 11447170Abstract: The outer column 25 has a front-side small-diameter tubular portion 37 into which the inner column 24 is press fitted. The inner-circumferential surface of the front-side small-diameter tubular portion 37 and the outer-circumferential surface of the inner column 24 come in contact with an interference fit at only a plurality of contact locations separated in the circumferential direction. At least one location in the axial direction of the column-side bracket 26 is welded to the outer-circumferential surface of the front-side small-diameter tubular portion 37 at only two weld locations that are close in the circumferential direction.Type: GrantFiled: October 18, 2019Date of Patent: September 20, 2022Assignee: NSK Ltd.Inventors: Suguru Sugishita, Masaru Oosawa
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Patent number: 11427243Abstract: An outer column includes first tightened surfaces arranged in a pair of clamped portions, second tightened surfaces arranged at a portion below the first tightened surfaces and with high rigidity in the width direction, and third tightened surfaces arranged in a portion above the first tightened surfaces and with high rigidity in the width direction. A pair of support plate portions of an upper bracket each has reinforcing portions arranged in both end portions in the front-rear direction, extending in the vertical direction, and each having a free end in the upper-end portion, and a stepped portion arranged in the intermediate portion in the front-rear direction, and having a concave shape on the width direction outside, a convex shape on the width direction inside, and an inside surface in the width direction facing and capable of being brought into contact only with the third tightened surfaces.Type: GrantFiled: November 29, 2019Date of Patent: August 30, 2022Assignee: NSK Ltd.Inventors: Suguru Sugishita, Masaru Oosawa
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Patent number: 11273859Abstract: Please substitute the new Abstract submitted herewith for the original Abstract: Provided is a steering device in which a pair of tension springs is arranged on both outer sides in the width direction of a pair of support plate portions of a support bracket. The pair of tension springs applies a force directed diagonally upward toward the front to a base portion of an adjustment lever and a pressing plate arranged at both end portions of an adjustment rod, and elastically presses the front side surface of an engaging convex portion of a driven-side cam against a front side edge of a long hole in the up-down direction.Type: GrantFiled: March 27, 2019Date of Patent: March 15, 2022Assignee: NSK Ltd.Inventor: Suguru Sugishita
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Publication number: 20220048554Abstract: A bracket includes a first plate that faces a steering column, a second plate that faces a column cover covering the steering column, and a third plate that connects the first plate and the second plate, and a fourth plate that intersects with the first plate and the third plate.Type: ApplicationFiled: September 18, 2019Publication date: February 17, 2022Applicant: NSK Ltd.Inventors: Suguru SUGISHITA, Hikaru OKABE
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Publication number: 20220032989Abstract: An outer column includes first tightened surfaces arranged in a pair of clamped portions, second tightened surfaces arranged at a portion below the first tightened surfaces and with high rigidity in the width direction, and third tightened surfaces arranged in a portion above the first tightened surfaces and with high rigidity in the width direction. A pair of support plate portions of an upper bracket each has reinforcing portions arranged in both end portions in the front-rear direction, extending in the vertical direction, and each having a free end in the upper-end portion, and a stepped portion arranged in the intermediate portion in the front-rear direction, and having a concave shape on the width direction outside, a convex shape on the width direction inside, and an inside surface in the width direction facing and capable of being brought into contact only with the third tightened surfaces.Type: ApplicationFiled: November 29, 2019Publication date: February 3, 2022Inventors: Suguru SUGISHITA, Masaru OOSAWA
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Patent number: 11225280Abstract: A steering device includes a pressing plate provided in a section of the adjustment rod protruding from the outside surface of one support plate section as a locked member. The pressing plate has a circular plate body externally fitted onto the adjustment rod and a locking plate section as an extended arm section. A tension spring is bridged between a section shifted in the width direction from the plate body of the locking plate section and the support bracket.Type: GrantFiled: March 27, 2019Date of Patent: January 18, 2022Assignee: NSK Ltd.Inventor: Suguru Sugishita
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Publication number: 20220009542Abstract: The front-side portion of an outer column includes a substantially cylindrical column main body portion having a pair of clamp portions and externally fitting with an inner column, and a reinforcing bridge portion that is integrally provided below the column main body portion. The front-side connecting portion of the reinforcing bridge portion includes a front-side inclined portion that inclines in a direction toward the front side going toward the upper side, and a rear-side connecting portion inclines in a direction toward the rear side going toward the upper side.Type: ApplicationFiled: November 13, 2019Publication date: January 13, 2022Inventor: Suguru SUGISHITA
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Publication number: 20210387664Abstract: The outer column 25 has a front-side small-diameter tubular portion 37 into which the inner column 24 is press fitted. The inner-circumferential surface of the front-side small-diameter tubular portion 37 and the outer-circumferential surface of the inner column 24 come in contact with an interference fit at only a plurality of contact locations separated in the circumferential direction. At least one location in the axial direction of the column-side bracket 26 is welded to the outer-circumferential surface of the front-side small-diameter tubular portion 37 at only two weld locations that are close in the circumferential direction.Type: ApplicationFiled: October 18, 2019Publication date: December 16, 2021Inventors: Suguru SUGISHITA, Masaru OOSAWA
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Publication number: 20210362769Abstract: The outer column has a press-fitted portion into which the inner column is press-fitted on the inner-diameter side, and an adjacent large diameter portion arranged in a location adjacent to the press-fitted portion in the axial direction and having an inner-diameter dimension larger than an inner-diameter dimension of the press-fitted portion. The inner-circumferential surface of the press-fitted portion and the outer-circumferential surface of the inner column come in contact with each other with an interference directly or via another member at only a plurality of contact locations separated in the circumferential direction. The column-side bracket is welded to an outer-circumferential surface of the adjacent large diameter portion with at least a part of the column-side bracket located on the outer-diameter side of the press-fitted portion.Type: ApplicationFiled: October 18, 2019Publication date: November 25, 2021Inventors: Suguru SUGISHITA, Masaru OOSAWA