Abstract: Provided is an opening/closing body opening/closing device capable of effectively preventing water such as rainwater flowing down from an opening/closing body carried by a carrier plate from adhering to a guide rail. The opening/closing body opening/closing device includes a carrier plate that carries an opening/closing body, and a guide rail that guides movement of the carrier plate in a lifting and lowering direction of the opening/closing body. The carrier plate includes, at an upper end portion, a water holding section that holds water reaching the upper end portion of the carrier plate from above. The water holding section includes a water receiving section that faces upward and receives the reaching water, and an outflow preventing section provided with a preventing surface that faces the water receiving section side and prevents the water from flowing out to the guide rail.

Abstract: A driving device is a driving device driving a door that includes an upper door and a lower door rotatably connected to the upper door, and the driving device includes: at least one cable including a first section and a second section that are each laid over from the upper door to the lower door; and a driving portion for increasing a degree of folding of the lower door with respect to the upper door by unwinding the first section, and for suppressing a movement of the lower door with respect to the upper door by winding the second section. This driving device can reduce interference of a lower door with an object around the door.

Abstract: A driving device is a driving device driving a door that includes an upper door and a lower door rotatably connected to the upper door, and includes: a driving portion that is provided at a position spaced apart from a connecting portion rotatably connecting the upper door and the lower door and generates a driving force for driving the upper door or the lower door; and an adjusting portion that changes a degree of folding of the lower door with respect to the upper door based on the driving force. Such a driving device can enhance the degree of freedom in designing a door.

Abstract: An electronic device includes: a housing having an exhaust surface including an exhaust port; a blower that is arranged inside the housing and sends air from an inside of the housing to an outside of the housing via the exhaust port; an exhaust portion arranged inside the housing and having an exhaust path for guiding the air sent from the blower toward the exhaust port along an air blowing direction intersecting the exhaust surface; and a fin arranged in the exhaust path and having a plurality of plate members. Each of the plurality of plate members is arranged along the air blowing direction.

Abstract: An antenna device includes: a circuit board; an antenna placed on the circuit board; and a reflector that is erected on the circuit board and extends along its surface. The reflector has: a convexly curved portion protruding toward the antenna, the convexly curved portion reflecting radio waves emitted by the antenna; and a first plane portion and second plane portion that extend from both sides of the convexly curved portion along the surface of the circuit board, form a V shape together with the convexly curved portion in plan view, and reflect radio waves emitted by the antenna. The surface of the convexly curved portion has a shape equivalent to a portion on the outer circumferential surface of a cylinder, the portion being the range of an azimuth angle with respect to a cylindrical axis. The convexly curved portion is inclined toward the antenna with respect to the circuit board.

Abstract: Provided is an opening/closing body opening/closing device capable of effectively preventing water such as rainwater flowing down from an opening/closing body carried by a carrier plate from adhering to a guide rail. The opening/closing body opening/closing device includes a carrier plate that carries an opening/closing body, and a guide rail that guides movement of the carrier plate in a lifting and lowering direction of the opening/closing body. The carrier plate includes, at an upper end portion, a water holding section that holds water reaching the upper end portion of the carrier plate from above. The water holding section includes a water receiving section that faces upward and receives the reaching water, and an outflow preventing section provided with a preventing surface that faces the water receiving section side and prevents the water from flowing out to the guide rail.

Abstract: A carrier plate is attached to a guide rail so as to move on the guide rail along the extending direction. An erected portion includes a first surface and a second surface which extend in an extending direction. A slit is formed by a first edge portion which is disposed on a side of the first surface of the erected portion and a second edge portion which is disposed on a side of the second surface of the erected portion. A cutout portion which includes an opening facing the erected portion is provided in at least one of the first edge portion and the second edge portion. The cutout portion includes a space portion which allows grease to be stored therein. The grease stored in the cutout portion is applied to the erected portion which slides in the slit when the carrier plate moves on the guide rail.

Abstract: A carrier plate is attached to a guide rail so as to move on the guide rail along the extending direction. An erected portion includes a first surface and a second surface which extend in an extending direction. A slit is formed by a first edge portion which is disposed on a side of the first surface of the erected portion and a second edge portion which is disposed on a side of the second surface of the erected portion. A cutout portion which includes an opening facing the erected portion is provided in at least one of the first edge portion and the second edge portion. The cutout portion includes a space portion which allows grease to be stored therein. The grease stored in the cutout portion is applied to the erected portion which slides in the slit when the carrier plate moves on the guide rail.

Abstract: The electronic device includes a case, an antenna element, a heat source, a heat dissipation member, a heat conduction member, a cooling fan, an exhaust port, and an exhaust duct. The case has a pair of main surfaces and side surfaces. The antenna element is used to perform wireless communication. The heat dissipation member exchanges heat with a cooling wind. The heat conduction member conducts heat of the heat source to the heat dissipation member. The cooling fan generates the cooling wind to be blown to the heat dissipation member. The exhaust port is an exhaust port from which the cooling wind is discharged to the outside. The exhaust duct guides the cooling wind to the exhaust port. The exhaust port is disposed on one of the side surfaces, and the antenna element and the exhaust duct are disposed to overlap each other at least partially in the thickness direction.

Abstract: The electronic device includes a case, an antenna element, a heat source, a heat dissipation member, a heat conduction member, a cooling fan, an exhaust port, and an exhaust duct. The case has a pair of main surfaces and side surfaces. The antenna element is used to perform wireless communication. The heat dissipation member exchanges heat with a cooling wind. The heat conduction member conducts heat of the heat source to the heat dissipation member. The cooling fan generates the cooling wind to be blown to the heat dissipation member. The exhaust port is an exhaust port from which the cooling wind is discharged to the outside. The exhaust duct guides the cooling wind to the exhaust port. The exhaust port is disposed on one of the side surfaces, and the antenna element and the exhaust duct are disposed to overlap each other at least partially in the thickness direction.

Abstract: The high-strength steel for steel forgings according to the present invention has a composition that includes, as basic components, C: 0.35 mass % to 0.47 mass %; Si: 0 mass % to 0.4 mass %; Mn: 0.6 mass % to 1.5 mass %; Ni: more than 0 mass % up to 2.0 mass %; Cr: 0.8 mass % to 2.5 mass %; Mo: 0.10 mass % to 0.7 mass %; V: 0.035 mass % to 0.20 mass %; Al: 0.015 mass % to 0.050 mass %; N: 30 ppm to 100 ppm, and O: more than 0 ppm up to 30 ppm, the balance being Fe and inevitable impurities. The metal structure is mainly bainite, martensite or a mixed structure of bainite and martensite. Among cubic B1-type precipitates, the number of coherent precipitates having a diameter equal to or smaller than 30 nm is equal to or smaller than 50/?m2.

Abstract: A high strength forged steel comprises composition which comprises predetermined amounts of predetermined chemical elements and a balance being Fe and inevitable purities. A major constituent of a metallographic structure of the steel comprises bainite, martensite or a combination thereof. An average crystal grain size in steel microstructures between a near-surface level below a surface of the steel at a distance of 5 mm and a mid level below the surface at a distance of one quarter of the thickness of the steel is less than or equal to 50 ?m. A difference between peak values of crystal grain size distributions at the near-surface level and the mid level is greater than or equal to 10 ?m and less than or equal to 30 ?m. The total index as determined in accordance with DIN 50602-1985, method K0 for evaluating non-metallic inclusions is preferably less than or equal to 10.

Abstract: Provided is a large crankshaft comprising a pin fillet portion, wherein: an average initial compression stress in a surface layer region from a surface of the pin fillet portion to a depth of 500 ?m is 500 Mpa or more; an average Vickers hardness of the surface of the pin fillet portion is 600 or more; an arithmetic average roughness Ra of the surface of the pin fillet portion is 1.0 ?m or less; and an average prior austenite grain size of a metallographic structure is 100 ?m or less. The large crankshaft has composition comprising C: 0.2% by mass to 0.4% by mass, Si: 0% by mass to 1.0% by mass, Mn: 0.2% by mass to 2.0% by mass, Al: 0.005% by mass to 0.1% by mass, N: 0.001% by mass to 0.02% by mass, and a balance being Fe and inevitable impurities.

Abstract: The high-strength steel for steel forgings according to the present invention has a composition that includes, as basic components, C: 0.35 mass % to 0.47 mass %; Si: 0 mass % to 0.4 mass %; Mn: 0.6 mass % to 1.5 mass %; Ni: more than 0 mass % up to 2.0 mass %; Cr: 0.8 mass % to 2.5 mass %; Mo: 0.10 mass % to 0.7 mass %; V: 0.035 mass % to 0.20 mass %; Al: 0.015 mass % to 0.050 mass %; N: 30 ppm to 100 ppm, and O: more than 0 ppm up to 30 ppm, the balance being Fe and inevitable impurities. The metal structure is mainly bainite, martensite or a mixed structure of bainite and martensite. Among cubic B1-type precipitates, the number of coherent precipitates having a diameter equal to or smaller than 30 nm is equal to or smaller than 50/?m2.

Abstract: A socket for electronic components includes a case that includes through holes of which inner wall surfaces have conductivity, and a ground contact unit that is disposed in one of the through holes and is electrically connected to an inner wall surface of the through hole. The ground contact unit includes a holding member that holds a conductive member and is fixed in the through hole. The conductive member has elasticity, and includes an intermediate portion held by the holding member, an upper extension portion extending upward from the intermediate portion, and a lower extension portion extending downward from the intermediate portion. The lower extension portion includes a ground extension portion that comes into elastic contact with the inner wall surface of the through hole, a fixed portion that is fixed to a substrate, and an impact absorbing portion that is formed between the fixed portion and the intermediate portion.

Abstract: A forged steel for components for nuclear power plants meets a specific chemical composition. The grain size number of a metal structure thereof is 4.5 to 7.0 in terms of ASTM grain size number. It is preferred that the content of N is 0.0100 mass % or more when the mass ratio (Al/N) of the content of Al to the content of N is 1.93 or more, and that the content of Al is 0.022 mass % or more when the mass ratio (Al/N) of the content of Al to the content of N is less than 1.93. The forged steel for components for nuclear power plants exhibits excellent strength, toughness and hydrogen cracking resistance even after being subjected to a stress relief heat treatment subsequent to welding.

Abstract: A socket for electronic components includes a case that includes through holes of which inner wall surfaces have conductivity, and a ground contact unit that is disposed in one of the through holes and is electrically connected to an inner wall surface of the through hole. The ground contact unit includes a holding member that holds a conductive member and is fixed in the through hole. The conductive member has elasticity, and includes an intermediate portion held by the holding member, an upper extension portion extending upward from the intermediate portion, and a lower extension portion extending downward from the intermediate portion. The lower extension portion includes a ground extension portion that comes into elastic contact with the inner wall surface of the through hole, a fixed portion that is fixed to a substrate, and an impact absorbing portion that is formed between the fixed portion and the intermediate portion.

Abstract: An electronic component socket includes a shield plate set forming an opening portion, a movement member including a conductive member having a contact portion capable of contacting an electrode terminal of an electronic component, an elastic member which is electrically connectable to a wiring substrate, and includes a biasing portion having a biasing force and a base portion fixing the biasing portion. The movement member is disposed to move vertically above the elastic member in the opening portion, and the biasing portion elastically contacts the movement member. The shield plate set includes a protrusion protruding in the opening portion, the movement member includes a concave portion which engages with the protrusion, the conductive member includes an inclined surface portion which extends so as to be inclined on an opposite side of the concave portion, and the biasing portion of the elastic member elastically contacts the inclined surface portion.

Abstract: Disclosed is a high-strength steel plate having a predetermined chemical composition, in which a microstructure of the steel plate at a depth of one-fourth to one half the thickness from a surface has an area fraction of bainite of 90% or more, an average lath width of bainite of 3.5 ?m or less, and a maximum equivalent circle diameter of martensite-austenite constituents in bainite of 3.0 ?m or less. The steel plate exhibits high strengths and good drop weight properties and is useful as structural materials for offshore structure, ships, and bridges, as well as materials for pressure vessels in nuclear power plants.

Abstract: An electronic component socket includes a shield plate set forming an opening portion, a movement member including a conductive member having a contact portion capable of contacting an electrode terminal of an electronic component, an elastic member which is electrically connectable to a wiring substrate, and includes a biasing portion having a biasing force and a base portion fixing the biasing portion. The movement member is disposed to move vertically above the elastic member in the opening portion, and the biasing portion elastically contacts the movement member. The shield plate set includes a protrusion protruding in the opening portion, the movement member includes a concave portion which engages with the protrusion, the conductive member includes an inclined surface portion which extends so as to be inclined on an opposite side of the concave portion, and the biasing portion of the elastic member elastically contacts the inclined surface portion.