Patents by Inventor Toshihiko Sekine
Toshihiko Sekine 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: 11548546Abstract: To reduce the effect of a steering operation on feeling. A rack bush comprises: a bush body that is accommodated in a cylindrical housing, supports a load exerted on a rack bar while allowing the rack bar to move in the direction of an axial center O, and can be extended and retracted in a radial direction; and an elastic ring mounted on the bush body. The bush body has a mounting groove for mounting the elastic ring, the mounting groove being formed peripherally in an outer peripheral surface, and the mounting groove having a large-diameter part where the circumferential radius of a groove bottom is a first radius r1, and a small-diameter part where said radius is a second radius r2 that is less than the first radius r1.Type: GrantFiled: July 31, 2018Date of Patent: January 10, 2023Assignee: OILES CORPORATIONInventors: Toshihiko Sekine, Katsunori Saito, Hiroyuki Kikuchi
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Patent number: 11254347Abstract: Provided is a rack bush capable of reducing an effect on the feeling of a steering operation. A rack bush (1) comprises: a rack bush 1 housed in a cylindrical housing (4), which supports a load applied to a rack bar (5) while allowing movement of the rack bar (5) in the direction of the axis (O) and can be freely expanded and contracted in the radial direction; and elastic rings (3) mounted on the bush body (2). The bush body (2) has mounting grooves (28), which are formed in the circumferential direction on an outer peripheral surface (22) for mounting the elastic ring (3). An axis (P) of the mounting groove (28) are shifted from the axis (O) of the bush body (2). By this arrangement, there are formed an elastic ring protruding part (10), where the elastic rings (3) protrude greatly from the outer peripheral surface (22) of the bush body (2), and an elastic ring embedded part (11), where the elastic rings (3) are embedded in the outer peripheral surface (22) of the bush body (2).Type: GrantFiled: October 17, 2018Date of Patent: February 22, 2022Assignees: MAZDA MOTOR CORPORATION, OILES CORPORATIONInventors: Gaku Ikeyama, Junya Kuwagaki, Hiroyuki Kikuchi, Toshihiko Sekine, Noboru Nakagawa, Katsunori Saito, Kosuke Shimayama
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Publication number: 20210188341Abstract: Provided is a rack bush capable of reducing an effect on the feeling of a steering operation. A rack bush (1) comprises: a rack bush 1 housed in a cylindrical housing (4), which supports a load applied to a rack bar (5) while allowing movement of the rack bar (5) in the direction of the axis (O) and can be freely expanded and contracted in the radial direction; and elastic rings (3) mounted on the bush body (2). The bush body (2) has mounting grooves (28), which are formed in the circumferential direction on an outer peripheral surface (22) for mounting the elastic ring (3). An axis (P) of the mounting groove (28) are shifted from the axis (O) of the bush body (2). By this arrangement, there are formed an elastic ring protruding part (10), where the elastic rings (3) protrude greatly from the outer peripheral surface (22) of the bush body (2), and an elastic ring embedded part (11), where the elastic rings (3) are embedded in the outer peripheral surface (22) of the bush body (2).Type: ApplicationFiled: October 17, 2018Publication date: June 24, 2021Inventors: Gaku IKEYAMA, Junya KUWAGAKI, Hirokyuki KIKUCHI, Toshihiko SEKINE, Noboru NAKAGAWA, Katsunori SAITO, Kosuke SHIMAYAMA
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Publication number: 20200346681Abstract: To reduce the effect of a steering operation on feeling. A rack bush comprises: a bush body that is accommodated in a cylindrical housing, supports a load exerted on a rack bar while allowing the rack bar to move in the direction of an axial center O, and can be extended and retracted in a radial direction; and an elastic ring mounted on the bush body. The bush body has a mounting groove for mounting the elastic ring, the mounting groove being formed peripherally in an outer peripheral surface, and the mounting groove having a large-diameter part where the circumferential radius of a groove bottom is a first radius r1, and a small-diameter part where said radius is a second radius r2 that is less than the first radius r1.Type: ApplicationFiled: July 31, 2018Publication date: November 5, 2020Applicant: Oiles CorporationInventors: Toshihiko SEKINE, Katsunori SAITO, Hiroyuki KIKUCHI
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Patent number: 10746224Abstract: Provided is a slide bearing of lower cost that is capable of preventing the intrusion of dust, muddy water, etc. and has good sliding performance. In a ring-shaped space (5) formed by assembling an upper case (2) with a lower case, a ring-shaped outer dust seal part (42), which bends with one end (420) contacting the upper case (2) and the other end (421) contacting the lower case, is disposed on the outside of a ring-shaped thrust bearing part (40), and the outer dust seal part (42) is connected to the thrust bearing part (40) by connecting parts (43) that extend radially outward from the outside of the thrust bearing part (40), integrating the two as a dust seal-integrated center plate (4). Disposed between the thrust bearing part (40) and the upper case (2) is a ring-shaped lubrication sheet (6), which has surfaces (62, 63) that slide on the mating surfaces facing same.Type: GrantFiled: July 18, 2017Date of Patent: August 18, 2020Assignee: OILES CORPORATIONInventors: Toshihiko Sekine, Tomohiro Yamada, Katsunori Saito, Yoshiteru Iagarashi
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Publication number: 20190277336Abstract: Provided is a slide bearing of lower cost that is capable of preventing the intrusion of dust, muddy water, etc. and has good sliding performance. In a ring-shaped space (5) formed by assembling an upper case (2) with a lower case, a ring-shaped outer dust seal part (42), which bends with one end (420) contacting the upper case (2) and the other end (421) contacting the lower case, is disposed on the outside of a ring-shaped thrust bearing part (40), and the outer dust seal part (42) is connected to the thrust bearing part (40) by connecting parts (43) that extend radially outward from the outside of the thrust bearing part (40), integrating the two as a dust seal-integrated center plate (4). Disposed between the thrust bearing part (40) and the upper case (2) is a ring-shaped lubrication sheet (6), which has surfaces (62, 63) that slide on the mating surfaces facing same.Type: ApplicationFiled: July 18, 2017Publication date: September 12, 2019Inventors: Toshihiko SEKINE, Tomohiro YAMADA, Katsunori SAITO, Yoshiteru IAGARASHI
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Patent number: 10344799Abstract: Provided is a sliding bearing wherein radial play is prevented. A sliding bearing (1) comprises: an upper case (2) mounted to an upper support for mounting the strut assembly of a strut-type suspension to a vehicle body; a lower case (3) which is mounted to an upper spring seat for supporting the upper end of the coil spring of the strut-type suspension, is combined with the upper case (2) so that the upper case (2) and the lower case (3) can pivot relative to each other, and forms an annular space (5) between the upper case (2) and the lower case (3); and an annular center plate (4) disposed in the annular space (5) and enabling the upper case (2) and the lower case (3) to pivot relative to each other. The center plate (4) has a circular conical surface-shaped bearing surface (41). The upper case (2) has a circular conical surface-shaped load transmission surface (27) sliding on the bearing surface (42) of the center plate (4).Type: GrantFiled: April 11, 2016Date of Patent: July 9, 2019Assignee: OILES CORPORATIONInventors: Toshihiko Sekine, Kouichi Morishige, Keisuke Imagawa
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Publication number: 20180106292Abstract: Provided is a sliding bearing wherein radial play is prevented. A sliding bearing (1) comprises: an upper case (2) mounted to an upper support for mounting the strut assembly of a strut-type suspension to a vehicle body; a lower case (3) which is mounted to an upper spring seat for supporting the upper end of the coil spring of the strut-type suspension, is combined with the upper case (2) so that the upper case (2) and the lower case (3) can pivot relative to each other, and forms an annular space (5) between the upper case (2) and the lower case (3) ; and an annular center plate (4) disposed in the annular space (5) and enabling the upper case (2) and the lower case (3) to pivot relative to each other. The center plate (4) has a circular conical surface-shaped bearing surface (41). The upper case (2) has a circular conical surface-shaped load transmission surface (27) sliding on the bearing surface (42) of the center plate (4).Type: ApplicationFiled: April 11, 2016Publication date: April 19, 2018Inventors: Toshihiko SEKINE, Kouichi MORISHIGE, Keisuke IMAGAWA
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Patent number: 8076007Abstract: A multilayered sliding member has a resin composition filled in pores of, and coated on the surface of, a porous sintered metal layer 2 formed on the surface of a metallic backing plate 1. The resin composition is formed by compounding a phosphate, a carbon black, a melt moldable fluororesin, and a PTFE serving as a principal component, and is preferably formed by further containing graphite and/or a low molecular weight PTFE.Type: GrantFiled: December 19, 2005Date of Patent: December 13, 2011Assignee: Oiles CorporationInventors: Sumihide Yanase, Toshihiko Sekine, Masafumi Kugo
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Publication number: 20100047612Abstract: [Problem] As a multi-layered sliding member aimed at applications in high temperature regions, there has been proposed slide sheet components each having a metal mesh component such as an expanded metal or wire mesh and an expanded graphite integrated therewith, but a problem remains in the strength when applied to sliding members such as bearings, allowing only a limited range of applications. It is therefore a subject of the present invention to provide a multi-layered sliding member suitable for applications under high temperatures under which lubricating oils or synthetic resins are not adoptable, and to provide a method of manufacturing the same.Type: ApplicationFiled: November 16, 2007Publication date: February 25, 2010Applicant: Oiles CorporationInventors: Masafumi Kugo, Toshihiko Sekine
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Publication number: 20070269674Abstract: A multilayered sliding member has a resin composition filled in pores of, and coated on the surface of, a porous sintered metal layer 2 formed on the surface of a metallic backing plate 1. The resin composition is formed by compounding a phosphate, a carbon black, a melt moldable fluororesin, and a PTFE serving as a principal component, and is preferably formed by further containing graphite and/or a low molecular weight PTFE.Type: ApplicationFiled: December 19, 2005Publication date: November 22, 2007Inventors: Sumihide Yanase, Toshihiko Sekine, Masafumi Kugo
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Patent number: 5516213Abstract: A cylindrical bearing with a solid lubricant embedded and fixed in a plurality of first and second helical grooves formed in an inner peripheral surface thereof, wherein each first helical groove is formed with a rightward rising inclination at an angle .theta..sub.1 of more than 0.degree. and not more than 45.degree. with respect to a reference line, while each second helical groove is formed with a leftward rising inclination at an angle .theta..sub.2 of more than 0.degree. and not more than 45.degree. with respect to the reference line, a line which connects shorter diagonal lines of parallelograms each formed by connecting points of intersection of adjacent ones of the first helical grooves and adjacent ones of the second helical grooves intersecting with the adjacent ones of the first helical grooves forms an angle .theta..sub.3 of less than 90.degree. with respect to the reference line.Type: GrantFiled: July 7, 1994Date of Patent: May 14, 1996Assignee: Oiles CorporationInventors: Shirosaku Moriyama, Toshihiko Sekine