JP2011169469A5 - - Google Patents

Claims (22)

A first bearing body having an annular surface, and an annular surface of the first bearing body that is superimposed on the first bearing body so as to be rotatable around the axis of the first bearing body. a second bearing body having an annular surface facing the, and at least one in slidably contact to that made of synthetic resin annular, of the two bearing body with being interposed between the annular surface sheet The second bearing body is formed integrally with the annular surface, and has an inner annular protrusion on the inner peripheral side and an outer annular ring arranged on the outer side in the radial direction of the inner annular protrusion. And a sheet interposed between the inner annular projection and the outer annular projection and the annular surface of the first bearing body, and the inner annular projection and At least one of the outer annular projection and the annular surface of the first bearing body slides on itself. A closed recess that is surrounded by the inner annular projection and the outer annular projection and is covered with a sheet is formed on the annular surface of the second bearing body. A plain bearing that is adapted to be filled with fluid that is adapted to receive thrust loads. The sliding bearing according to claim 1, wherein the annular sheet is made of a synthetic resin including at least one of a polyamide resin, a polyester resin, a polyolefin resin, a polycarbonate resin, and a fluororesin. The sliding bearing according to claim 1 or 2, wherein the annular sheet has a thickness of 0.05 mm to 1.0 mm. The sliding bearing according to any one of claims 1 to 3, wherein the protrusion is bent and deformed to reduce a fluid filling volume of the closed recess under a thrust load. 5. The protrusion according to claim 1, wherein the protrusion is bent and deformed so as to reduce a fluid filling volume of the closed recess and generate an internal pressure in the fluid of the closed recess under a thrust load. The described plain bearing. The sliding bearing according to any one of claims 1 to 5, wherein the fluid includes at least one of grease and lubricating oil. The sliding bearing according to claim 1, wherein the fluid is made of silicone grease. The sliding bearing according to any one of claims 1 to 7, wherein the protrusion includes a radial protrusion that is integrally connected to each of the inner annular protrusion and the outer annular protrusion and extends in the radial direction. The projection further includes at least one intermediate annular projection disposed between the inner annular projection and the outer annular projection in the radial direction and substantially concentric with the inner annular projection and the outer annular projection. The plain bearing according to any one of claims 1 to 8. A first bearing body having an annular surface, and an annular surface of the first bearing body that is superimposed on the first bearing body so as to be rotatable around the axis of the first bearing body. A second bearing body having an annular surface facing the first bearing body, and a first bearing body that is rotatably disposed between the first bearing body and the second bearing body and faces the annular surface of the first bearing body An annular piece having a second annular face facing the annular face and the annular face of the second bearing body, and a single annular piece made of synthetic resin slidably in contact with the first annular face of the annular piece A sliding bearing comprising a sheet and another annular sheet made of synthetic resin that is slidably in contact with the second annular surface of the annular piece. The sliding bearing according to claim 10, wherein the annular piece is made of a synthetic resin containing at least one of a polyamide resin, a polyolefin resin, and a fluororesin. The at least one of the one annular sheet and the other one annular sheet is made of a synthetic resin including at least one of a polyamide resin, a polyester resin, a polyolefin resin, a polycarbonate resin, and a fluororesin. The sliding bearing according to 10 or 11. The slide bearing according to any one of claims 10 to 12, wherein at least one of the one annular sheet and the other one annular sheet has a thickness of 0.05 mm to 1.0 mm. The sliding bearing according to any one of claims 1 to 13, wherein the both bearing bodies are made of synthetic resin. The sliding according to any one of claims 1 to 14, wherein the both bearing bodies are made of a synthetic resin including at least one of polyacetal resin, polyamide resin, polyester resin, polyolefin resin, polycarbonate resin, and fluororesin. bearing. The first bearing body is made of a polyacetal resin, and the second bearing body is made of a synthetic resin containing at least one of a polyacetal resin, a polyamide resin, a polyolefin resin, and a fluororesin. The plain bearing according to any one of 15. 17. The first bearing body is adapted to be elastically fitted to the second bearing body at the outer peripheral edge in the radial direction at the outer peripheral edge in the radial direction of the second bearing body. The sliding bearing as described in any one of these. The labyrinth is formed between both bearing bodies in at least one of the outer peripheral edge part and the inner peripheral edge part in the radial direction of both bearing bodies. Of plain bearings. Each of the first and second bearing bodies has a cylindrical surface facing each other, and a cylindrical sheet made of synthetic resin is interposed between both cylindrical surfaces, and the cylindrical sheet is The sliding bearing according to any one of claims 1 to 18, wherein the sliding bearing is slidably in contact with at least one of the two cylindrical surfaces. The plain bearing according to claim 19, wherein the cylindrical sheet is made of a synthetic resin including at least one of a polyamide resin, a polyester resin, a polyolefin resin, a polycarbonate resin, and a fluororesin. The plain bearing according to claim 19 or 20, wherein the cylindrical sheet has a thickness of 0.05 mm to 1.0 mm. The sliding bearing according to any one of claims 1 to 21, which is used for a thrust sliding bearing of a strut suspension in a four-wheeled vehicle.