Abstract: The seal ring is annular around an axis x and includes an annular outer peripheral surface facing an outer periphery side, and a plurality of recessed parts. The recessed parts are formed in such a way as to be spaced apart from each other in a circumferential direction and are recessed from the outer peripheral surface toward an inner periphery side. The recessed parts expand, in the axis x direction, from one side surface to a position which does not reach another side surface. The outer peripheral surface includes a annular contact surface between the another side surface and the position, and rib surfaces respectively between mutually neighboring recessed parts in the circumferential direction. Each of the rib surfaces extends between the one side surface and the position in the axis x direction.

Abstract: Provided is a structure in which an inserted article is easily inserted and a product is easily released from a die after molding. The structure includes a positioning mechanism which is vertically arranged on one split die, includes a positioning pin having a tapered distal end, and positions the inserted article by engaging the inserted article with the positioning pin, a stop mechanism that has a spring means assembled with the one split die and a stopper portion held by the spring means, and temporarily stops movement of the other split die when the other split die comes into contact with the stopper portion at the time of mold clamping, and a pressing mechanism that has a spring assembled with the other split die, a pusher pin, a spring assembled with the one split die, and a pusher pin, and elastically presses the inserted article by the pusher pin.

Abstract: A coating agent for oil seal comprising 10 to 160 parts by weight of a filler having a particle size of 0.5 to 30 ?m based on 100 parts by weight of isocyanate group-containing 1,2-polybutadiene and being prepared as an organic solvent solution, wherein a contact angle between a substrate surface coated with the coating agent and engine oil is less than 35°. The coating agent can improve wettability with oil and reduce dynamic friction coefficient in oil, while increasing the roughness of the coating surface. Thus, low torque characteristics can be achieved, while maintaining excellent seal performance inherent in oil seal.

Abstract: A sealing apparatus includes a reinforcing ring, an elastic body portion formed of an elastic body having conductivity, and a conductive grease. The elastic body portion includes a base portion, a lip portion which extends from the base portion, and a tension force applying member which is an elastic member in an annular shape. The tension force applying member is mounted on an outer peripheral side of the lip portion at a lip tip end portion to apply a tension force which presses a lip contact end against an outer peripheral surface of a shaft. The conductive grease is applied to at least a portion of an inner peripheral surface of the elastic body portion which faces an inner periphery side.

Abstract: A millimeter-wave radar cover housing a millimeter-wave radar including an antenna and an electronic circuit configured to drive the antenna includes: a first site provided in front of the millimeter-wave radar to protect the millimeter-wave radar and transmit millimeter waves emitted from the antenna; and a second site including a housing space in which the antenna and the electronic circuit except for the first site are housed. The first site is made of a stacked structural body obtained by stacking at least one layer of a first constituent material having a negative relative permittivity in the frequency band of the millimeter waves and a second constituent material having a positive relative permittivity in the frequency band of the millimeter waves, and the stacked structural body is curved in a convex shape in a direction centered at an emission source of the millimeter electromagnetic waves and departing from the emission source.

Abstract: A sealing device includes: a housing; a seal ring configured to be axially displaceably inserted along an inner circumference of the housing, the seal ring including a front-end surface and a rear-end surface which defines packing mounting space; a packing configured to establish sealing between the housing and the seal ring, the packing being disposed in the packing mounting space; and spring means disposed on the rear-end surface side of the seal ring to elastically bias the seal ring toward the front-end surface side.

Abstract: Increase of contact pressure of lips on their contact surface can be prevented. A sealing device is configured to be interposed between exterior-side and interior-side members which rotate about a common axis relative to each other. The sealing device includes a metal ring and a lip portion. The metal ring is fitted into and fastened to an inner periphery of the exterior-side member. The lip portion is formed of a rubber-like elastic material and is fastened to the metal ring by vulcanization. The lip portion includes annular grease, side and intermediate lips. The annular grease lip extends toward a structurally interior side, and has a first end. The annular side lip extends toward an atmosphere side, and has a second end. The annular intermediate is arranged between the grease and side lips to extend toward the interior-side member, and has a third end. The first, second and third ends contact the interior-side member.

Abstract: The annular dust seal includes a circular annular dust lip, the annular dust seal being formed of an elastic material, being supported by a housing, and bringing a surface of the dust lip into contact with an outer peripheral surface of a reciprocating shaft that is disposed in the housing and includes a tip end side protruding toward an atmosphere side. In a longitudinal section of the dust lip, an average radius of curvature of a surface having a convex curvature on an inner side of the housing from a top portion of the dust lip is larger than an average radius of curvature of a surface having a convex curvature on the atmosphere side from the top portion of the dust lip.

Abstract: Provided are a ball joint and a dust cover that make it possible to suppress contact of a body portion of the dust cover with the vicinity of a flange portion of a ball stud. A dust cover integrally includes: a deformable bellows-shaped body portion made of an elastic body; a fixed portion made of an elastic body and provided on one end side of the body portion; and a sealing portion made of an elastic body and provided on the other end side of the body portion. The sealing portion includes: an inner peripheral sealing portion configured to be slidable on a part of a shank portion on the opposite side of the shank portion from a spherical portion with respect to a flange portion; and a cover portion that continuously covers, in an outer wall surface of the flange portion, a radially outward tip end portion and a part of a portion that decreases in diameter from the tip end portion toward the spherical portion side.

Abstract: A cell capture apparatus includes a cell separation unit having a flat plate shape and a cell capture unit having a flat plate shape located therebelow. A liquid sample and a carrier liquid flow in a cell-separation flow passage of the cell separation unit. The liquid sample contains multiple large cells, multiple small cells, and a sample liquid component. The cell-separation flow passage separates a set of large cells and the carrier liquid from a set of small cells and the sample liquid component. The cell capture unit includes a large-cell flow passage in which the set of large cells and the carrier liquid flows, and multiple electrode wires for attracting the large cells by means of dielectrophoresis. Multiple cell capturing wells are formed in the large-cell flow passage. Each of the multiple cell capturing wells has a size that can capture one of the large cells attracted by the electrode wires.

Abstract: A valve stem seal hermetically seals a space formed between a valve stem of a valve which establishes and interrupts communication between a cylinder and a port and a valve guide into which the valve stem is inserted in a reciprocally movable manner, wherein the valve stem seal includes: a reinforcing ring formed into an annular shape centered about an axis, and extending in a radial direction of a ring of the reinforcing ring; and an elastic body portion formed into an annular shape centered about the axis, attached to the reinforcing ring, and including a seal lip which abuts on the valve stem.

Abstract: A dust cover for a ball joint is made up of a dust cover body made of a rubber elastic material and an annular plate member. In the dust cover body, a reinforcement ring is disposed in a stud mounting part, and an annular step is disposed on the inner peripheral side of the reinforcement ring. The plate member is made up of a plate body and an annular sealing part that is made of a rubber elastic material and is accommodated in the annular step. In the outer periphery of the plate body, a plurality of cut parts are formed, so that outer peripheral petal parts are formed between adjacent cut parts to be capable of being bent so as to be engaged with a knuckle groove.

Abstract: A sealing member includes: a rubber base material; and a coating provided on the rubber base material and having a melting point of 50° C. or higher, wherein the coating contains a polymer containing an acrylic acid ester containing a perfluoroalkyl group or a methacrylic acid ester containing a perfluoroalkyl group, as a monomer.

Abstract: A cylinder head gasket to be mounted between a cylinder block and a cylinder head of an engine includes: at least one bore-hole plate having a bore hole which corresponds to a cylinder bore of the cylinder block; and a main plate disposed so as to surround the bore-hole plate, wherein the bore-hole plate and the main plate are separated from each other without being in contact with each other, while being connected with each other with a heat insulating member interposed between the bore-hole plate and the main plate.

Abstract: To suppress static leakage in a seal device, a seal lip is configured for sliding contact with a seal flange that includes a thread groove exerting a fluid pumping action at a time of shaft rotation. The seal device prevents sealing fluid on the inner-machine side from leaking to the outer-machine side between a housing and a rotating shaft inserted into a shaft hole on the housing. The seal lip is attached to the inner periphery of the shaft hole and the seal flange is attached to the outer periphery of the rotating shaft. A sliding area in the seal flange in sliding contact with the seal lip is a flat surface with no thread grooves, and has an outer peripheral side area and an inner peripheral side area, which each have a thread groove exerting a fluid pumping action when the rotating shaft rotates.

Abstract: An apparatus for processing an elongated structure includes a mold within which an uncross-linked rubber material is placed, at least one heating unit configured to heat the mold, and a pressure device configured to press the rubber material using the mold heated by the heating unit to promote shaping the rubber material by the mold while proceeding the cross-linking of the rubber material. The heating unit includes a central heating device configured to heat a longitudinal central portion of the mold, multiple cooling devices configured to cool two longitudinal end portions of the mold, multiple intermediate heating devices configured to heat two intermediate portions between the longitudinal central portion and the longitudinal end portions of the mold, heat shield plates disposed between the central heating device and the intermediate heating devices, and heat shield plates disposed between the cooling devices and the intermediate heating devices.

Abstract: The purpose of the present invention is to provide a structure which is configured so that the handling workability of a rubber-only gasket is improved and, even when a gasket body and a carrier film adhere to each other, the carrier film is easily detached from the gasket body. To achieve the object, a rubber-only gasket body and a carrier film containing a resin film detachably holding the gasket body are combined and a gasket holding portion containing a three-dimensional shape deformed along an outer shape of the gasket body is provided in a portion overlapping with the gasket body on the plane in the carrier film. The gasket holding portion containing the three-dimensional shape has a stepped shape in which one side surface of the gasket body is not held and only the other side surface and the lower surface of the gasket body are held.

Abstract: A method of manufacturing a plate with an insulating frame by using a metal mold. The plate includes an outer edge portion having a concavo-concave shape, and the metal mold includes a plurality of gate portions for injecting a molding material that forms the frame. The gate portions of the metal mold are at locations that correspond to the concave portions of the metal plate such that when the molding material is injected into the metal mold, an injection pressure of the molding material that can deform the metal plate will not deform the metal plate to an extent that deteriorates insulation resistance that is provided by the frame.

Abstract: An inner circle and outer periphery punching step is performed in which a punching process is performed on a plate material made of a metal material to form an outline on an outer periphery side and a circle space on an inner periphery side, thereby forming an intermediate plate material. In an inner periphery bending step, the intermediate plate material is subjected to a bending process of bending a portion inside of a base circle that is a circle between an inner circle end portion and an outer circle, toward one side. In an inner periphery punching step, the intermediate plate material is subjected to a punching process of punching out inner periphery radial portions that are portions radially extending from the inner circle end portion, to form inner periphery slits extending inside of the outer circle in respective radial pieces.

Abstract: An epichlorohydrin rubber composition that includes 100 parts by weight of an epichlorohydrin-ethylene oxide-allyl glycidyl ether terpolymer rubber, 0 to 60 parts by weight of carbon black, and 30 to 60 parts by weight of a flat tiller. The crosslinked epichlorohydrin rubber is prepared by crosslinking the composition with a crosslinking agent. Materials for accumulators contain the crosslinked rubber.