公开(公告)号：US20180258990A1

公开(公告)日：2018-09-13

申请号：US15914002

申请日：2018-03-07

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Takayoshi YAMAUCHI

IPC: F16C33/12 ,  F16C17/00

Abstract: Provided is a partially-annular sliding member including a sliding layer including fibrous particles having an average particle size of 5-25 μm dispersed in a synthetic resin at a volume ratio of 10-35% of the sliding layer. The particles having a major axis length ≤20 μm are included at a volume ratio of ≥10% to total particles. A sliding surface side area is defined from the sliding surface and has a thickness of 25% of a sliding layer thickness T, where the fibrous particles having a major axis length of ≥20 μm have a dispersion index of 1.1-6. An interface side area is defined from the interface and has a thickness of 25% of T, where the dispersion index is 1.1-6. An intermediate area is defined between the both areas, where the dispersion index is 0.1 to less than 1.

公开(公告)号：US10041537B2

公开(公告)日：2018-08-07

申请号：US15070171

申请日：2016-03-15

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Hideki Iwata ,  Yoshifumi Ito

IPC: F16C33/12 ,  F16C33/20 ,  F16C29/02 ,  F16F9/36

Abstract: According to the present invention, there is provided a slide member for a shock absorber of a vehicle including a back metal, a porous sintered metal layer containing a porous sintered metal formed on the back metal and a resin with which the porous sintered metal is impregnated and covered, and a resin slide layer formed on the porous sintered metal layer and having a smooth slide surface, and the slide member is formed in a cylindrical shape so that the resin slide layer is disposed on an inner peripheral side. The resin slide layer is composed of polytetrafluoroethylene and a plurality of granular elements dispersed in the polytetrafluoroethylene, and the granular element is composed of molybdenum disulfide and molybdenum trioxide, and/or tungsten disulfide and tungsten trioxide.

公开(公告)号：US09957457B2

公开(公告)日：2018-05-01

申请号：US15151673

申请日：2016-05-11

Applicant: Daido Metal Company Ltd.

Inventor： Hideki Iwata ,  Yasushi Saito

IPC: B22F3/10 ,  C10M103/04 ,  C22C19/05 ,  C22C38/00 ,  B22F3/11 ,  B22F3/24 ,  C21D9/40 ,  C21D1/18 ,  B32B5/16 ,  B32B15/04 ,  B32B15/08 ,  B32B15/16 ,  B32B15/18 ,  B32B3/10 ,  B32B3/18 ,  F16C33/20 ,  B32B5/14 ,  B32B5/30 ,  B32B27/28 ,  B32B27/32 ,  B32B27/34 ,  B32B27/38

CPC classification number: C10M103/04 ,  B22F3/11 ,  B22F3/24 ,  B22F2998/10 ,  B22F2999/00 ,  B32B3/10 ,  B32B3/18 ,  B32B5/145 ,  B32B5/16 ,  B32B5/30 ,  B32B15/043 ,  B32B15/08 ,  B32B15/16 ,  B32B15/18 ,  B32B27/281 ,  B32B27/285 ,  B32B27/286 ,  B32B27/288 ,  B32B27/32 ,  B32B27/34 ,  B32B27/38 ,  B32B2250/02 ,  B32B2250/04 ,  B32B2260/025 ,  B32B2260/046 ,  B32B2262/103 ,  B32B2262/105 ,  B32B2264/10 ,  B32B2264/105 ,  B32B2264/107 ,  B32B2307/50 ,  B32B2307/554 ,  B32B2307/714 ,  B32B2307/732 ,  B32B2307/746 ,  C10M2201/053 ,  C21D1/18 ,  C21D9/40 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/009 ,  C22C19/058 ,  C22C33/00 ,  C22C38/00 ,  C22C2200/00 ,  F16C33/206 ,  F16C33/208 ,  F16C2202/10 ,  F16C2204/52 ,  F16C2204/60 ,  F16C2204/62 ,  F16C2208/00 ,  F16C2240/48 ,  F16C2240/60 ,  Y10T428/12042 ,  Y10T428/12063 ,  B22F1/0011 ,  B22F1/0003 ,  B22F2007/047 ,  B22F3/1035 ,  B22F7/004 ,  B22F7/008 ,  B22F2201/01

Abstract: Provided is a sliding member comprising: a steel back metal layer; and a sliding layer including a porous sintered layer and a resin composition. The porous sintered layer includes Fe or Fe alloy granules and a Ni—P alloy part functioning as a binder for binding the Fe or Fe alloy granules with one another and/or for binding the Fe or Fe alloy granules with the steel back metal layer. The steel back metal layer is made of a carbon steel including 0.05 to 0.3 mass % of carbon, and includes: a non-austenite-containing portion having a structure of a ferrite phase and perlite formed in a central portion in a thickness direction of the steel back metal layer; and an austenite-containing portion having a structure of a ferrite phase, perlite and an austenite phase formed in a surface portion of the steel back metal layer facing the sliding layer.

公开(公告)号：US20180010631A1

公开(公告)日：2018-01-11

申请号：US15636693

申请日：2017-06-29

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Yusuke UESU ,  Yasushi SAITO

IPC: F16C19/14 ,  F16C3/04 ,  F16C33/66

CPC classification number: F16C33/1065 ,  F16C3/04 ,  F16C3/14 ,  F16C9/02 ,  F16C17/022 ,  F16C17/26 ,  F16C33/046 ,  F16C33/1055 ,  F16C33/6666 ,  F16C35/02 ,  F16C2204/10 ,  F16C2204/20

Abstract: The provided is a bearing device for a crankshaft of an internal combustion engine including: a crankshaft having a plurality of journal portions; main bearings for supporting the crankshaft; and a bearing housing, wherein a range in which the oil groove of the upper-side halved bearing of the second main bearing is formed in the circumferential direction includes at least a range of a circumferential angle of 20° within the ±45° region, a circumferential end portion of the oil groove on a rotationally forward side communicates with the crush relief at a minimum, and is open to a circumferential end face at a maximum, and a circumferential end portion of the oil groove on the rotationally backward side of the journal portion is positioned on a circumferential center portion side of the upper-side halved bearing from a circumferential end face of the upper-side halved bearing.

公开(公告)号：US09863462B2

公开(公告)日：2018-01-09

申请号：US15377282

申请日：2016-12-13

Applicant: Daido Metal Company Ltd.

Inventor： Shiho Tanaka ,  Motohiko Koushima

IPC: F16C9/02 ,  F16C17/10 ,  F16C33/12 ,  F16C17/04 ,  F16C33/04

CPC classification number: F16C9/02 ,  F16C17/04 ,  F16C17/10 ,  F16C33/046 ,  F16C33/122 ,  F16C2240/30 ,  F16C2360/22

Abstract: There is provided a half thrust bearing having a semicircular-ring shape for a crankshaft of an internal combustion engine, including a back metal layer and a bearing alloy layer having a slide surface on which thrust reliefs are formed adjacently to both circumferential end surfaces so that a wall thickness of the half thrust bearing becomes thinner from the slide surface toward the circumferential end surfaces. A thrust relief length L1 of each thrust relief extends over a circumferential angle θ1 from the circumferential end surface toward a circumferential central portion, and is constant between an inside end portion and an outside end portion in a radial direction of the half thrust bearing. A flat surface of each thrust relief includes a first region on the circumferential end surface side and a second region on the circumferential central portion side.

公开(公告)号：US09797435B2

公开(公告)日：2017-10-24

申请号：US14964912

申请日：2015-12-10

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Shiho Tanaka ,  Yoshihiro Ozawa

IPC: F16C17/04 ,  F16C9/02 ,  F16C33/10 ,  F16C17/10 ,  F16C33/04

CPC classification number: F16C9/02 ,  F16C17/04 ,  F16C17/10 ,  F16C33/046 ,  F16C33/1065 ,  F16C33/1075 ,  F16C2240/30 ,  F16C2240/40 ,  F16C2360/22

Abstract: A bearing device, including a crankshaft, a pair of half bearings each having crush reliefs formed adjacent to both circumferential ends thereof, a bearing housing in which a retaining hole is formed for retaining the pair of half bearings, and one half thrust bearing having a semi-annular shape arranged adjacent to the retaining hole. The half thrust bearing includes thrust reliefs formed adjacent to both circumferential end portions of a sliding surface receiving an axial force of the crankshaft so that its wall thickness is made thinner toward the circumferential end surface, and a thrust relief length at an inner end portion of the thrust relief positioned on a rear side in the crankshaft rotational direction is formed to be larger than a thrust relief length at an inner end portion of the thrust relief positioned on a front side in the crankshaft rotational direction.

公开(公告)号：US09739303B2

公开(公告)日：2017-08-22

申请号：US15017993

申请日：2016-02-08

Applicant: Daido Metal Company Ltd.

Inventor： Kenta Kato ,  Yuki Kawashima

IPC: F16C33/10 ,  F16C9/02 ,  F16C17/02 ,  F16C33/04

CPC classification number: F16C9/02 ,  F16C17/022 ,  F16C33/046 ,  F16C33/1065 ,  F16C33/1075 ,  F16C2360/22

Abstract: A main bearing includes first and second half bearings, each having a main cylinder portion and crush relief portions in both circumferential end portions. An oil groove circumferentially extends on an inner circumferential surface only of the first half bearing, one circumferential end portion of the oil groove opens on a circumferential end surface on a front side in a rotation direction, and the other circumferential end portion of the oil groove is positioned in the crush relief portion on a rear side in the rotation direction. The first half bearing includes a transition region between the crush relief portion on the front side in the rotation direction and the main cylinder portion, and the second half bearing includes a transition region between the crush relief portion on the rear side in the rotation direction and the main cylinder portion.

公开(公告)号：US20170233671A1

公开(公告)日：2017-08-17

申请号：US15432439

申请日：2017-02-14

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Takayoshi YAMAUCHI

IPC: C10M125/02 ,  C10M147/02 ,  C10M125/10 ,  C10M107/44 ,  C10M125/22

CPC classification number: C10M125/02 ,  C10M103/02 ,  C10M107/44 ,  C10M113/02 ,  C10M125/08 ,  C10M125/10 ,  C10M125/18 ,  C10M125/22 ,  C10M125/24 ,  C10M125/30 ,  C10M147/02 ,  C10M2201/041 ,  C10M2201/061 ,  C10M2201/062 ,  C10M2201/065 ,  C10M2201/066 ,  C10M2201/081 ,  C10M2201/085 ,  C10M2201/103 ,  C10M2209/1003 ,  C10M2209/1023 ,  C10M2209/1033 ,  C10M2213/02 ,  C10M2213/062 ,  C10M2217/0415 ,  C10M2217/0443 ,  C10M2221/0405 ,  C10N2220/082 ,  C10N2250/08 ,  C10N2250/18 ,  F16C33/1095 ,  F16C33/121 ,  F16C33/16 ,  F16C2208/02 ,  C10N2210/06 ,  C10N2210/02 ,  C10N2210/08

Abstract: A sliding member includes a back metal layer and a sliding layer on the back metal layer. The sliding layer includes a synthetic resin matrix and graphite particles dispersed in the matrix in a volume ratio of 5-50% of that of the sliding layer. The graphite particles are composed of spheroidal and flake-like particles. The flake-like particles have a volume ratio of 10-40% of total graphite particles. The spheroidal particles have a cross-sectional structure with a plurality of AB planes of a graphite crystal laminated along a curved particle surface, from the surface toward a center direction. The flake-like graphite particles have a cross-sectional structure with the plurality of AB planes laminated in a thickness direction of the thin plate shape. The spheroidal particles have an average particle size of 3-50 μm, and the flake-like graphite particles have an average particle size of 1-25 μm.

公开(公告)号：US20170058942A1

公开(公告)日：2017-03-02

申请号：US15246672

申请日：2016-08-25

Applicant: Daido Metal Company Ltd.

Inventor： SHIHO TANAKA ,  YOSHIHIRO OZAWA

IPC: F16C9/02 ,  F16C33/20 ,  F16C17/10

CPC classification number: F16C9/02 ,  F16C17/04 ,  F16C17/10 ,  F16C33/205 ,  F16C33/206 ,  F16C2202/50 ,  F16C2206/40 ,  F16C2208/42 ,  F16C2208/44 ,  F16C2208/60 ,  F16C2240/60

Abstract: The invention provides a bearing device, including a crankshaft, a pair of half bearings each having crush reliefs adjacent to both circumferential ends thereof, a bearing housing having a retaining hole, and one half thrust bearing arranged adjacent to the retaining hole. Each half thrust bearing is configured at least by a bearing alloy layer and a resin slide layer which constitutes a slide surface receiving an axial force of the crankshaft, and thrust reliefs adjacent to both circumferential end portions of the sliding surface so that its wall thickness is made thinner toward the circumferential end surface. A thrust relief length at an inner end portion of the thrust relief positioned on a rear side in the crankshaft rotational direction is formed to be larger than a thrust relief length at an inner end portion of the thrust relief positioned on a front side.

Abstract translation: 本发明提供了一种轴承装置，包括曲轴，一对半轴承，每个半轴承具有邻近其两个周向端部的压紧凸块，具有保持孔的轴承壳体和邻近保持孔布置的一个半推力轴承。 每个半推力轴承至少由构成承受曲轴的轴向力的滑动面的轴承合金层和树脂滑动层以及与滑动面的两个周向端部相邻的推力凸起构成，使得其壁厚为 朝向周向端面变薄。 在位于曲轴旋转方向的后侧的推力释放件的内端部的推力释放长度形成为大于位于前侧的止推凸缘的内端部处的推力释放长度。

公开(公告)号：US20160230807A1

公开(公告)日：2016-08-11

申请号：US15018018

申请日：2016-02-08

Applicant: Daido Metal Company Ltd.

Inventor： KENTA KATO ,  YUKI KAWASHIMA

IPC: F16C9/02 ,  F16C33/04 ,  F16C17/02

CPC classification number: F16C9/02 ,  F16C17/02 ,  F16C17/022 ,  F16C33/046 ,  F16C33/1065 ,  F16C33/107 ,  F16C33/1075 ,  F16C2360/22

Abstract: A main bearing includes first and second half bearings, each having a main cylinder portion and crush relief portions in both circumferential end portions. An oil groove circumferentially extends on an inner circumferential surface only of the first half bearing, one circumferential end portion of the oil groove opens on a circumferential end surface on a front side in a rotation direction, and the other circumferential end portion of the oil groove is positioned in the main cylinder portion. The first half bearing includes a transition region at least between the crush relief portion on the rear side in the rotation direction and the main cylinder portion, and the second half bearing includes a transition region at least between the crush relief portion on the front side in the rotation direction and the main cylinder portion.

Abstract translation: 主轴承包括第一和第二半轴承，每个轴承在两个周向端部具有主缸部分和挤压卸载部分。 在第一半轴承的内周面上周向延伸的油槽，油槽的一个周向端部在旋转方向的前侧的周向端面上开口，并且油槽的另一个周向端部 被定位在主缸部分中。 第一半轴承包括至少在旋转方向后侧的挤压部分和主缸部之间的过渡区域，并且第二半轴承包括至少在前侧的挤压部分之间的过渡区域 旋转方向和主缸部。