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公开(公告)号：US20230265880A1
公开(公告)日：2023-08-24
申请号：US18165954
申请日：2023-02-08
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Kenji OKUDAIRA
CPC classification number: F16C13/006 , F16C29/045 , F16C33/585 , B60J5/06 , E05D15/0678
Abstract: Provided is a guide roller for a vehicle sliding door. The guide roller rolls along a rail located on a vehicle body. The guide roller is pivotally supported in a rotatable manner by a support member coupled to the vehicle sliding door. The guide roller includes a ring-shaped inner race made of metal, a ring-shaped outer race, and a covering member mounted on an outer peripheral surface of the outer race.
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公开(公告)号：US20230258224A1
公开(公告)日：2023-08-17
申请号：US18165360
申请日：2023-02-07
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Seiji SANO
CPC classification number: F16C9/02 , F16C17/04 , F16C33/046
Abstract: A half thrust bearing includes a slide surface which includes: at least two oil grooves extending in a radial direction; a plurality of pad surfaces located on both sides of each oil groove in a circumferential direction; and at least two first inclined surfaces each formed between the oil groove and the pad surface on a front side of the oil groove in a rotation direction of a crankshaft. A plurality of circumferential grooves are formed in succession in the radial direction on the first inclined surface. A plurality of oil drain grooves extends side by side to intersect the circumferential direction and the radial direction on the pad surface. A plurality of flat portions are formed each between the adjacent oil drain grooves. Each oil drain groove is open at a radially outer end and/or a radially inner end of the pad surface.
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公开(公告)号：US11703087B2
公开(公告)日：2023-07-18
申请号：US16767345
申请日：2018-12-25
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Tomoyasu Shiroya , Hiroki Kobayakawa
Abstract: Disclosed herein is a sliding member having an alloy overlay layer that comes into sliding contact with a counterpart member thereof and has improved fatigue resistance. The sliding member comprises a base material layer and an alloy overlay layer formed on the base material layer, in which the alloy overlay layer has a soft metal phase made of tin and precipitated in a metallic matrix phase made of aluminum, and when an average aspect ratio of the soft metal phase is defined as A, and its standard deviation is defined as Aσ, A+Aσ is 3.0 or less. In this case, the soft metal phase has a shape close to a sphere without elongating in a certain direction.
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公开(公告)号：US11629755B2
公开(公告)日：2023-04-18
申请号：US17178662
申请日：2021-02-18
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Shigeru Inami , Erina Yasuda , Kenji Nimura
Abstract: A sliding member includes a resin overlay layer on a sliding surface side coming into sliding contact with a mating member. The resin overlay layer has a surface roughness parameter Rk satisfying 0.4≤Rk≤1.2, and a surface area ratio S=S2/S1 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S2 satisfies 2.5≤S≤4.5.
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55.发明申请公开(公告)号：US20230111221A1
公开(公告)日：2023-04-13
申请号：US17905067
申请日：2021-03-09
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Soushi IMAOKA , Manae MORI , Yuma HANEDA
Abstract: In a sliding member, fatigue resistance of a surface layer formed by dispersing a hard material in a soft metal matrix is improved. A sliding member includes a base material layer and a surface layer, the surface layer includes a metal matrix and a hard material harder than the matrix and dispersed in the matrix, the hard material has a gradient in hardness, and the gradient in hardness gradually decreases from an inner side to a surface of the hard material.
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Patent Agency Ranking
公开(公告)号：US20220412404A1
公开(公告)日：2022-12-29
申请号：US17839622
申请日：2022-06-14
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Ayako YAMAMOTO , Yoshifumi ITO
IPC: F16C33/12
Abstract: The present invention provides a sliding member which enables further reduction of friction and improvement of seizure resistance without deteriorating wear resistance of a sliding surface. The sliding member includes a porous metal base material, and a resin material with which the porous metal base material is impregnated. The sliding member includes an exposed sliding surface. The sliding surface includes a top surface made of the resin material, and a bottom surface made of the porous metal base material. A height from the bottom surface to the top surface is 10 to 30 μm, and the resin material includes fluorine resin.
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公开(公告)号：US20220260111A1
公开(公告)日：2022-08-18
申请号：US17579703
申请日：2022-01-20
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Tomoyasu SHIROYA , Shigeyoshi MORI
IPC: F16C11/06
Abstract: A ball socket structure is provided, which includes a ball portion and a socket portion, the ball portion and the socket portion being configured to slide against one another, in which the socket portion includes a sliding surface including a PVD coating layer, the sliding surface of the socket portion is a concave spherical surface, and a value (Ds/Rs) of a ratio between a depth Ds of the sliding surface and a radius of curvature Rs of the sliding surface is from 0.05 to 0.70.
[Selected Drawing] FIGS. 1A and 1B-
公开(公告)号：US20220098982A1
公开(公告)日：2022-03-31
申请号：US17483869
申请日：2021-09-24
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Akiyoshi IMAMURA , Yu SUZUKI , Marina OGURI
Abstract: A bearing device includes a piston arranged in a cylinder of a rotor, and a half bearing mounted on the piston to support a roller. The piston includes a recessed holding surface, and holding side surfaces on both axial sides thereof. Each holding side surface includes a ridge portion having an arc-shaped or elliptic-arc-shaped profile protruding toward a radially inner side of the piston. The half bearing includes a partially cylindrical portion, and protruding portions protruding from axial end faces thereof. Each protruding portion has a protruding portion end face which includes a central recessed surface, and two support recessed surfaces located on both circumferential sides thereof, that have an arc shape or an elliptic arc shape to correspond to the profile of the ridge portion, so that only the two support recessed surfaces are in contact with the ridge portion.
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公开(公告)号：US11261913B2
公开(公告)日：2022-03-01
申请号：US16057923
申请日：2018-08-08
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Yuma Haneda , Hiroki Kobayakawa
Abstract: Disclosed herein is a sliding member, such as a sliding bearing, including a resin overlay layer having improved conformability. The sliding member includes a bearing alloy layer and a resin overlay layer formed on the bearing alloy layer, wherein the resin overlay layer includes a solid lubricant phase, a binder resin phase, and a cushion phase, and an area ratio of the cushion phase is 0.5% or more but 5.0% or less.
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公开(公告)号：US11225998B2
公开(公告)日：2022-01-18
申请号：US17034692
申请日：2020-09-28
Applicant: DAIDO METAL COMPANY LTD.
Inventor： Shiho Goto , Seiji Amano , Ryota Ito
Abstract: A semi-cylindrical half bearing for a sliding bearing includes at least one axial groove formed on its inner circumferential surface that includes a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side. The half bearing further includes a plurality of axial narrow grooves and a plurality of circumferential narrow grooves that are formed further back away from the groove surface toward the radially outer side, and extend in circumferential and axial directions, respectively, so as to cross each other. A depth of the axial narrow groove from the groove surface is greater than a depth of the circumferential narrow groove from the groove surface, and a width of the axial narrow groove on the groove surface is greater than a width of the circumferential narrow groove on the groove surface.
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