公开(公告)号：US12055179B2

公开(公告)日：2024-08-06

申请号：US17579703

申请日：2022-01-20

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Tomoyasu Shiroya ,  Shigeyoshi Mori

IPC: F16C11/06 ,  F16C17/03 ,  F16C33/04

CPC classification number: F16C11/0628 ,  F16C11/0685 ,  F16C17/03 ,  F16C33/043 ,  F16C2206/04 ,  F16C2223/60 ,  F16C2240/70

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.

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

IPC: F16C33/24 ,  C22C21/00 ,  C23C14/06 ,  F16C33/10

CPC classification number: F16C33/24 ,  C22C21/00 ,  C23C14/06 ,  F16C33/10

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.

公开(公告)号：US10900521B2

公开(公告)日：2021-01-26

申请号：US16654891

申请日：2019-10-16

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Yuma Haneda ,  Manabu Izumida ,  Erina Yasuda ,  Tomoyasu Shiroya

IPC: F16C33/10 ,  F16C17/02

Abstract: A sliding member includes a bearing alloy layer, a solid lubricant layer, particles and a covering portion. The solid lubricant layer is provided on a sliding surface side of the bearing alloy layer and is deposited on the bearing alloy layer. The particles form the solid lubricant layer and are made of metal sulfide. The covering portion is provided over outermost surfaces of the particles on the sliding surface side and are made of metal oxide including the same metal element as a metal element constituting the particles.