Patents Assigned to Oiles Corporation
  • Patent number: 11313412
    Abstract: Provided is a slide bearing capable of retaining strength while achieving weight reduction and cost-cutting. The slide bearing has an upper case (2) to be attached to an upper support for attaching a suspension to a vehicle body, a lower case (3) rotatably combined with the upper case (2), an annular center plate (4) located between the upper case (2) and the lower case (3), and an annular sliding sheet (5) located between the upper case (2) and the center plate (4). The lower case (3) has a lower case body (31) in a substantial cylindrical shape, a flange part (32) projecting radially outward from an outer peripheral surface of the lower case body (31), and hollow sections (321) formed on an outer peripheral surface of the flange part (32). A plurality of the hollow sections (321) are formed at equal intervals in a circumferential direction on the outer peripheral surface of the flange part (32).
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 26, 2022
    Assignee: OILES CORPORATION
    Inventors: Tomohiro Yamada, Yoshiteru Igarashi, Kouichi Morishige
  • Patent number: 11287008
    Abstract: A rotary damper (1) has a first sealing ring (8a) and a first bushing (4a) which are located between a through-hole (23) of a circular cylindrical chamber (21) inside a case (2) and a lower end part (33a) of a rotor body (31) of a rotor (3), and a second sealing ring (8b) and a second bushing (4b) which are located between a through-hole (60) in a lid (6) and an upper end part (33b) of the rotor body (31).
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: March 29, 2022
    Assignee: OILES CORPORATION
    Inventors: Hiroshi Watanabe, Ryohei Kaneko, Wataru Nishioka
  • Patent number: 11254347
    Abstract: 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: Grant
    Filed: October 17, 2018
    Date of Patent: February 22, 2022
    Assignees: MAZDA MOTOR CORPORATION, OILES CORPORATION
    Inventors: Gaku Ikeyama, Junya Kuwagaki, Hiroyuki Kikuchi, Toshihiko Sekine, Noboru Nakagawa, Katsunori Saito, Kosuke Shimayama
  • Patent number: 11180181
    Abstract: A rack guide for a rack and pinion steering device, a rack and pinion steering device, and a manufacturing method for a rack guide for a rack and pinion steering device have a simple configuration with a close contact property being kept between a rack guide and a rack guide base member to ensure quietness. A rack guide for a rack and pinion steering device includes: a casing; a pinion to be slidably supported by the casing; a rack bar having a rack tooth meshed with the pinion; a rack guide including an abutment portion to which the rack bar is to be slidably abutted and a recessed portion, which is continued to the abutment portion, to be spaced from the rack bar; a rack guide base member for receiving the rack guide; and an urging unit to urge the rack guide against the rack bar through the rack guide base member.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 23, 2021
    Assignee: OILES CORPORATION
    Inventors: Yosuke Nishitani, Yoshimitsu Ishida
  • Patent number: 11181147
    Abstract: Provided is a sliding bearing capable of reducing the number of components and reducing costs. This sliding bearing (1) is provided with; an upper case (2); a lower case (3) combined with the upper case (2); and an annular dust seal-integrated center plate (8) that has a dust seal part (6) for covering a gap between the upper case (2) and the lower case (3), is disposed between the upper case (2) and the lower case (3), and enables relative rotation between the upper case (2) and the lower case (3). The dust seal-integrated center plate (8) is integrally formed with the lower case (3).
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 23, 2021
    Assignee: OILES CORPORATION
    Inventors: Yuta Ishii, Kouichi Morishige
  • Patent number: 11143262
    Abstract: Provided is a rotary damper on which the timing for generating a damping torque can be set freely. Groove-like bypass passages (805) that are longer in the circumferential direction than vanes (501) are formed in the upper surface (803) of a torque regulation plate (8) arranged on the bottom part (201) of a cylindrical circular chamber (200). When the rotor (5) rotates in a first rotational direction R1, if both end faces (508a, 508b) of the vanes (501) are positioned within a range of the respective bypass passages (805), each area (218) and the corresponding area (217) are communicated via the corresponding bypass passage (805), enabling movement of a viscous fluid (6) from the area (217) to the area (218).
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: October 12, 2021
    Assignee: OILES CORPORATION
    Inventor: Ryohei Kaneko
  • Patent number: 11131343
    Abstract: Provided is a resin bush capable of slidably supporting a shaft when the bush has been fitted in a housing; particularly, a resin bush suitable for use in an environment in which the effects of a difference in thermal expansion coefficients are likely to be prominent, such as a high-temperature environment, even when the housing and the shaft are made of a material such as a metal that has a different thermal expansion coefficient from that of the resin bush. In the resin bush (1), which is molded by extrusion molding, a slit (12) is formed from one axial end surface (11a) towards another axial end surface (11b). A recessed section (13) for a gate (a gate position), which is provided to the one axial end surface (11a), is provided in a position that is deviated from being symmetrical with the slit (12), at least with respect to a center axis O of a bush body (10).
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 28, 2021
    Assignees: DENSO CORPORATION, OILES CORPORATION
    Inventors: Takashi Kobayashi, Akihiko Okimura, Tetsuya Katamine
  • Patent number: 11097344
    Abstract: A manufacturing apparatus 1 has a leveler 3 which, while pulling out a steel plate starting with one end thereof and while transporting it, corrects the waviness and the like of the steel plate, which serves as a backing plate 2 and is constituted by a continuous strip having a thickness of 0.3 to 2.0 mm and provided as a hoop material by being wound into a coil shape.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: August 24, 2021
    Assignee: OILES CORPORATION
    Inventors: Yasuhiro Shirasaka, Masato Ono
  • Patent number: 11091190
    Abstract: The objective of the present invention is to reduce the impact of production variability in a radius of curvature of a rear surface of a rack bar, for example, while enlarging a region of contact with the rack bar. A concave surface (330) is used as a rack guide seat (32) sliding surface (33).
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: August 17, 2021
    Assignee: OILES CORPORATION
    Inventors: Noboru Nakagawa, Hiroyuki Kikuchi
  • Patent number: 10899916
    Abstract: A polyacetal resin composition includes: in addition to a polyacetal resin as a principal component, 1.5 to 7% by mass of an ethylene-propylene-diene rubber; 0.5 to 3% by mass of a saponified ethylene-vinyl acetate copolymer; and 0.05 to 0.3% by mass of an ethylene-?-olefin copolymer.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: January 26, 2021
    Assignee: OILES CORPORATION
    Inventors: Aoi Saito, Kingo Miyasaka
  • Patent number: 10900536
    Abstract: Provided is a damper wherein viscous fluid which fills a circular cylinder chamber is more reliably prevented from leaking. A rotary damper (1) includes: a first seal ring (8a) of an elastic body, arranged between a through-hole (23) of a circular cylinder chamber (21) in a case (2) and a lower end of a rotor body of a rotor (3); and a second seal ring (8b) of an elastic body, arranged between a through-hole (60) in a lid (6) and an upper end of the rotor body.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: January 26, 2021
    Assignee: OILES CORPORATION
    Inventors: Hiroshi Watanabe, Ryohei Kaneko
  • Patent number: 10844925
    Abstract: Provided is a rotary damper that makes it possible to adjust braking torque characteristics. A rotary damper (1) that restricts the movement of a viscous fluid (6) with which the inside of a cylindrical chamber (200) of a case (2) has been filled and thereby generates braking torque against applied rotational force. A flow path (208) is formed in a partitioning part (204) of the cylindrical chamber (200), and a check valve (3) is movably arranged inside the flow path (208). When a rotor (4) has rotated in a normal rotation direction R1, the check valve (3) moves inside the flow path (208) in a closing direction M1 and closes the flow path (208) and, when the rotor (4) has rotated in a reverse rotation direction R2, moves inside the flow path (208) in an opening direction M2 and opens the flow path (208).
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 24, 2020
    Assignee: OILES CORPORATION
    Inventor: Ryohei Kaneko
  • Publication number: 20200346681
    Abstract: 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: Application
    Filed: July 31, 2018
    Publication date: November 5, 2020
    Applicant: Oiles Corporation
    Inventors: Toshihiko SEKINE, Katsunori SAITO, Hiroyuki KIKUCHI
  • Patent number: 10823247
    Abstract: Provided is a rotary damper that makes it possible to easily adjust braking torque. A rotary damper that has a partitioning part and first and second adjustment bolts. The partitioning part has: first and second flow paths that connect regions of a partitioned cylindrical chamber; a first insertion hole that connects to the first flow path and to a first adjustment bolt screw hole of a case; and a second insertion hole that connects to the second flow path and to a second adjustment bolt screw hole of the case. The first adjustment bolt is screwed into the first adjustment bolt screw hole and is thereby inserted into the first insertion hole, and the length to which it protrudes into the first flow path can be adjusted. The second adjustment bolt is screwed into the second adjustment bolt screw hole and is thereby inserted into the second insertion hole, and the length to which it protrudes into the second flow path can be adjusted.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 3, 2020
    Assignee: OILES CORPORATION
    Inventor: Ryohei Kaneko
  • Patent number: 10767697
    Abstract: A sliding contact surface-forming material, and method of making the material are disclosed, the material having minimal swelling and excellent friction-proof and wear-proof characteristics when used in moist environments such as in water, and improved in the friction-proof and wear-proof characteristics under dry friction conditions such as in the open air, particularly under oscillation conditions for testing journal. The material includes a reinforcing base impregnated with a resol-type phenolic resin having polytetrafluoroethylene resin dispersed therein. The reinforcing base is composed of a woven fabric formed by using, as each of the warp and the weft, a ply yarn which is formed by paralleling at least two strands of a single twist yarn spun from fluorine-containing resin fiber and a single twist yarn spun from polyester fiber, and by twisting them in the direction opposite to the direction in which the single twist yarns were spun.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: September 8, 2020
    Assignee: Oiles Corporation
    Inventors: Hiroyuki Ogoe, Shinya Nishimura, Kentaro Okubo
  • Patent number: 10767695
    Abstract: A sliding contact surface-forming material with improved friction-proof and wear-proof characteristics under dry friction conditions such as in the open air, while keeping the low swelling, friction-proof, and wear-proof characteristics under moist atmosphere typically under water unchanged, wherein the sliding contact surface-forming material includes a reinforcing base impregnated with a resol-type phenolic resin having polytetrafluoroethylene resin dispersed therein, the reinforcing base being composed of a woven fabric formed by using, respectively as the warp and the weft, a ply yarn which is formed by paralleling at least two strands of a single twist yarn spun from fluorine-containing resin fiber and a single twist yarn spun from polyphenylene sulfide fiber, and by twisting them in the direction opposite to the direction in which the single twist yarns were spun.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: September 8, 2020
    Assignee: Oiles Corporation
    Inventors: Hiroyuki Ogoe, Shinya Nishimura, Kentaro Okubo
  • Patent number: 10746224
    Abstract: 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: Grant
    Filed: July 18, 2017
    Date of Patent: August 18, 2020
    Assignee: OILES CORPORATION
    Inventors: Toshihiko Sekine, Tomohiro Yamada, Katsunori Saito, Yoshiteru Iagarashi
  • Patent number: 10711834
    Abstract: A vehicle thrust bearing that can reduce the number of assembly parts used in assembling a suspension of a vehicle to a body and reduce the thickness of parts to simplify the assembling work includes an upper case that is attached to a body of a vehicle having a suspension, and a lower case that is arranged under the upper case so as to be rotatable with respect to the upper case, wherein the upper case includes in a top area thereof a mounting portion for being attached to the body of the vehicle.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: July 14, 2020
    Assignees: OILES CORPORATION, OILES DEUTSCHLAND GMBH
    Inventors: Robert Hamrodi, Kai Metzler, Tsuyoshi Nagashima, Kouhei Kurose
  • Patent number: 10662645
    Abstract: A seismic isolation apparatus includes a laminated body having alternately laminated rubber plates and steel plates; a hollow portion provided inside the laminated body in a hermetically closed manner and extending in a laminated direction; a lead plug filled densely in the hollow portion and adapted to damp the vibration in a shearing direction of the laminated body by absorbing vibrational energy in the shearing direction; and a lid member having a semispherical concave surface which comes into contact with one end portion in the laminated direction A of the lead plug in order to guide and assist the plastic flow of the lead plug at one end portion in the laminated direction of the hollow portion in the deformation in the shearing direction of the lead plug.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 26, 2020
    Assignee: OILES CORPORATION
    Inventors: Osamu Kochiyama, Kenta Nagahiro, Yasunari Kimura
  • Patent number: 10640142
    Abstract: A rack-and-pinion type steering apparatus 1 comprises a gear case 3 made of aluminum or an aluminum alloy and having a hollow portion 2; a steering shaft 6 rotatably supported by the gear case 3 through rolling bearings 4 and 5; a pinion 7 which is provided integrally on a shaft end portion of the steering shaft 6 and is rotatably supported in the hollow portion 2 by the gear case 3 through the steering shaft 6; a rack bar 9 on which rack teeth 8 meshing with the pinion 7 are formed; a rack guide 10 which is disposed in the hollow portion 2 of the gear case 3 and supports the rack bar 9 slidably; and a spring 11 constituted by a coil spring for pressing the rack guide 10 toward the rack bar 9.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: May 5, 2020
    Assignee: OILES CORPORATION
    Inventor: Takuya Maeda