Abstract:
Provided is a metal gasket for a cylinder head that is capable of improving engaging force between a substrate and a step adjustment plate. A method for manufacturing the metal gasket for a cylinder head includes the steps of: forming a prepared hole 3c in each of a plurality of protruding pieces 3b of the step adjustment plate 3; forming a tubular portion 3d including a plurality of projecting segments 3d1 by inserting a die 4 including a polygonal pyramidal punch 4a into the prepared hole 3c so as to bend up a peripheral portion around the prepared hole 3c while cutting the peripheral portion into segments; forming in the substrate 2 an fastening hole 2h in correspondence with a position of the tubular portion 3d formed in the step adjustment plate 3; and engaging the protruding piece 3b through the substrate 2 by inserting the tubular portion 3d of the step adjustment plate 3 through the corresponding fastening hole 2h formed in the substrate 2, and subsequently folding the plurality of projecting segments 3d1 of the tubular portion 3d over to an outside of the substrate 2 and flattening out the projecting segments 3d1.
Abstract:
Provided is a metal gasket for a cylinder head that is capable of improving engaging force between a substrate and a step adjustment plate. A method for manufacturing the metal gasket for a cylinder head includes the steps of: forming a prepared hole 3c in each of a plurality of protruding pieces 3b of the step adjustment plate 3; forming a tubular portion 3d including a plurality of projecting segments 3d1 by inserting a die 4 including a polygonal pyramidal punch 4a into the prepared hole 3c so as to bend up a peripheral portion around the prepared hole 3c while cutting the peripheral portion into segments; forming in the substrate 2 an fastening hole 2h in correspondence with a position of the tubular portion 3d formed in the step adjustment plate 3; and engaging the protruding piece 3b through the substrate 2 by inserting the tubular portion 3d of the step adjustment plate 3 through the corresponding fastening hole 2h formed in the substrate 2, and subsequently folding the plurality of projecting segments 3d1 of the tubular portion 3d over to an outside of the substrate 2 and flattening out the projecting segments 3d1.
Abstract:
A metal gasket includes plural functional layers formed with embossments along peripheral edges of cylinder openings thereof and a backup plate not formed with any embossment and sandwiched between the functional layers. At least one edge plate is provided which is spaced radially within and is coplanar with peripheral edges of cylinder openings of the backup plate. The edge plate is different in thickness from, generally thinner than, the backup plate. Grommets are provided to fasten together the edge plate and portions of the functional layers overlapping the edge plate. With this arrangement, by selecting thicknesses of the edge plate and the backup plate so as to be different between them by a requisite value, surface pressure at peripheral edges of cylinder openings of the metal gasket can be set a desired value. Therefore, this metal gasket is superior in sealing performance and uniformity.
Abstract:
An object detection device includes a map generator configured to generate, based on a distance image that includes distance information for each coordinate, a first map in which the coordinate in a horizontal direction of the distance image is associated with the distance information, and a second map in which the coordinate in the horizontal direction of the distance image is associated with the distance information, the second map having a lower resolution than the first map; and an object detector configured to detect an object based on the first map when a distance represented by the distance information is within a first range, and to detect an object based on the second map when a distance represented by the distance information is within a second range.
Abstract:
According to an embodiment of the invention, there is provided a switching power supply device including an integrated body and a plurality of external terminals. In the integrated body, a first switching element, a constant current element, and a diode are connected in series. The plurality of external terminals include a first external terminal connected to a main terminal of an element disposed on one end side of the integrated body and a second external terminal connected to a main terminal of an element disposed on another end side of the integrated body.
Abstract:
An LED lighting device including a DC power source circuit, a high frequency generation circuit which includes an inverter circuit having switching elements and a resonance circuit having a series-connected inductor and condenser, in which the switching elements are on-off controlled by a no-load resonance frequency of the resonance circuit, and DC voltage input from the DC power source circuit is converted into a high frequency AC voltage, a rectification smoothing circuit having an input side which is connected between both edges of the condenser or both edges of the inductor; and a light emitting diode series connected to an output side of the rectification smoothing circuit.
Abstract:
According to one embodiment, a power supply for lighting includes an output element. The output element is connected between a power supply and a lighting load, and configured to be capable of being switched to a switching operation repeating an ON state and an OFF state and an ON continuation operation continuing the ON state.
Abstract:
Provided is a display unit capable of improving both display luminance and display quality in three-dimensional display. A light modulation layer containing a bulk and microparticles is provided in a light modulation device (30) that is bonded to a light guide plate (10). The bulk and the microparticle each have optical anisotropy, and have respective response speeds to the electric field, that are different from each other. When the electric field is applied to the light modulation layer, an optical axis (AX1) of the bulk and an optical axis (AX2) of the microparticle are orthogonal to each other in a light modulation cell (30-1, 30-2). At this time, the optical axis (AX1) of the bulk is parallel to a transmission axis (AX10) of a polarization plate (210B) on a backlight side.
Abstract:
A retardation film, formed by stretching a film having a norbornene-based ring-opening copolymer containing a structural unit (A) represented by the general formula (1) and a structural unit (B) represented by the general formula (2), wherein the content of structural unity (A) is not less than 5 mol % but not more than 95 mol % relative to the total amount of structural units (A) and (B).
Abstract:
An LED lighting device including a DC power source circuit, a high frequency generation circuit which includes an inverter circuit having switching elements and a resonance circuit having a series-connected inductor and condenser, in which the switching elements are on-off controlled by a no-load resonance frequency of the resonance circuit, and DC voltage input from the DC power source circuit is converted into a high frequency AC voltage, a rectification smoothing circuit having an input side which is connected between both edges of the condenser or both edges of the inductor; and a light emitting diode series connected to an output side of the rectification smoothing circuit.