142results about How to "Stress concentration" patented technology

A light emitting device has: a light emitting element; a lead that is electrically connected to the light emitting element at its one end and serves as a terminal to supply a power source to the light emitting element; a metal base that the light emitting element is mounted thereon and radiates heat of the light emitting element; and a sealing member that is of transparent resin or glass and covers the light emitting element. The lead is secured to the metal base by a heat-resisting insulating member with a thermal expansion coefficient nearly equal to that of the metal base.

A method of manufacturing an electro-optical device having a curved display surface with high reliability is provided. A liquid crystal panel 100 comprising a TFT array substrate 10 and a counter substrate 20, each composed of a glass substrate or a quartz substrate, is thinned down to, for example, a thickness of 25 μm by a polishing process or an etching process. Subsequently, a first polarizing plate 140, first spacers 260, the liquid crystal panel 100, second spacers 270, and a second polarizing plate 150 are superposed on a base 210 having a curved surface 220 in this order, and then the outer circumference of the second polarizing plate 150 is pressed against the base 210 while curving the second polarizing plate 150 along the curved surface 220 of the base 210. Then, in order to maintain such a curved state, the second polarizing plate 150 is fixed to the base 210 by a double-faced tape 280.

A solar cell includes: an photoelectric conversion body including a first main surface and a second main surface opposed to the first main surface; a first electrode provided on the first main surface; a second electrode provided on the second main surface; a first conductive connection member connected with the first electrode for connecting the solar cell and another solar cell, wherein the first conductive connection member includes a conductive soft layer at an area facing the first electrode, and the first electrode includes a conductive soft layer at an area facing the first conductive connection member; and a first resin adhesive bonding the first conductive connection member to the first electrode in such a manner that the conductive soft layer of the first electrode and the conductive soft layer of the first conductive connection member abut on each other.

The present invention prevents, when a COF which is connected with an external circuit is bent in a flat display device, the disconnection of lines on the COF. At a position where a line of the COF is connected to terminal portions of a TFT, and the line having a large width is branched into lines having a small width T1 to T3 or T4 to T6. By displacing line branching positions from each other as indicated by an arrow A and an arrow B, when the COF is bent or deformed, stress applied to the line branching positions can be dispersed thus preventing the disconnection of lines.

A reinforcing bar splice secures together reinforcing bar ends by utilizing, at both ends, both tapered-thread coupling and coupling involving a filler, such as a grout or an epoxy. The splice may include a central tapered-thread central sleeve or coupler, and a pair of collars that are screwed onto externally-threaded ends of the central sleeve. The central sleeve has a channel therethrough with tapered internal threads at both ends, and a center internal relief. The internal relief is an increased radius center portion that ensures full thread contact between the tapered internal threads and external threaded sections of the rebar ends. The sleeve has externally-threaded ends that are engaged by internally-threaded ends of a pair of collars. Distal to their internally-threaded ends, the collars have filler-material-receiving channels. The channels include plural sloped surfaces for aiding in securing filler material between the collars and the rebar ends.

A bolt according to the invention comprises: a coarse screw thread portion of pitch P, which is formed from the tip end portion of a bolt shank to a prescribed portion; and a fine screw thread portion of pitch p (p=P/n wherein n is an integer of 2 or more), which is formed so as to overlap the coarse screw thread portion for at least the entire length of the coarse screw thread portion of the bolt shank or from the tip end portion to the prescribed portion of the coarse screw thread portion. And, it is an object of the invention to provide a bolt that can be mass-produced at low cost, bring about excellent synchronicity, strength against compression and shear, and an excellent tightening force, and in which a nut screwed therein is scarcely loosened upon receiving a large vibration load.

The present invention relates to a turbomachine rotor balancing system comprising a balancing flange (52) provided with through-passageways (78), the system further comprising balance weights (54) each mounted fixedly on the flange (52) by means of a first and a second screw/nut assembly (56a, 56b) having a first and a second screw (84, 84) passing through a first and a second passageway (78, 78). According to the invention, said first screw is pressing against a first tangential end side (116) of the first through-passageway, and at a distance from a second tangential end side, and the second screw is pressing against a second tangential end side (118) of the second through-passageway, and at a distance from the first tangential end side.

A capacitance-type transducer has a back plate having a fixed electrode, a diaphragm that opposes the back plate via an air gap and serves as a movable electrode, and at least first stoppers having a first projection length and second stoppers having a second projection length that project from at least one of a surface of the back plate on the air gap side and a surface of the diaphragm on the air gap side. At least one of the diaphragm and the fixed electrode is divided into at least a first region having a first surface area and a second region having a second surface area, a first sensing portion made up of the diaphragm and the fixed electrode is constituted in the first region, and a second sensing portion made up of the diaphragm and the fixed electrode is constituted in the second region.

The present invention: provides a steel pipe pole base and a method for reinforcing the steel pipe pole base that do not allow the strength to lower in the vicinity of the weld toe of a rib even in the event of applying repeated bending moment; and is characterized by forming peening processed portions 20 by ultrasonic vibration at the weld toes 16 of tabular ribs 12 welded to the base of a steel pipe pole 10 in the form of a T-joint or the weld toes of inverted-U shaped ribs 13 or inverted-V shaped ribs 14, the ribs being bent at the upper end portions, welded to the base of a steel pipe pole 10 in the form of a T-joint. Preferable treatment conditions are 20 to 50 μm in amplitude and 10 to 50 kHz in frequency. In particular, the present invention makes it possible to remarkably improve the fatigue property because stress concentration is relaxed by the synergetic effect of bending the upper end portions 16 of the ribs 13 and applying a peening treatment.

Overlapping twisted radial aerofoil blades or vanes are formed on a compressor rotor or turbine disk or the like (102) by electro-discharge machining with a curved tool electrode which is in the form of an elongate and substantially rigid element other than a wire (150) which is turned by a tool holder (130) as it is advanced on a helical path to form the inner surface of each blade or vane with the outer curve of the electrode, or the outer surface of each blade or vane with the inner curve of the electrode, the disk being indexed to a next rotary position after each blade surface is machined.

Isolation regions are formed on a substrate to define an active region. A gate electrode is formed on the active region. A spacer structure is formed on a sidewall of the gate electrode. A gate silicide layer is formed on the gate electrode and a source/drain silicide layer is formed on the active region adjacent to the gate electrode. An upper portion of the gate silicide layer and a portion of the spacer structure are simultaneously removed to form a spacer structure pattern and a gate silicide layer pattern. A stress layer is formed to cover the gate electrode and spacer structure pattern.

A semiconductor substrate (1) includes a plurality of semiconductor elements (2) in which functional elements are constructed and which is formed in a grid pattern, wherein continuous linear grooves (3) are formed on longitudinal and lateral separating lines (4) that individually separate the plurality of semiconductor elements (2) with the exception of intersections of the separating lines (4) and portions corresponding to corners of each semiconductor element (2).

In a friction spot joint structure, a first plate member is pressed against a second plate member by using a rotary tool and a receiving member. A concave portion is formed by a rotating pin portion of the rotating tool, with an interface between the first plate member and the second plate member remained. In this time, the first and second plate members are allowed to plastic-flow, so that an annular bulging portion of the second plate member raised into the first plate member is formed around the concave portion.

A door trim for a vehicle includes: a trim main body formed so as to be bulging out inward of a vehicle compartment as an interior furnishing material of a door inner panel of a side door; and a clip installation base provided on the trim main body in a rear side area thereof with respect to the vehicle. The clip installation base includes: a clip settling portion configured to be opposed to the door inner panel and to be fitted with a clip to be mounted in a mounting hole formed in the door inner panel; and a clip rising wall portion provided continuously with the clip settling portion and forming a closed section portion together with the trim main body and the clip settling portion in a horizontal section, the clip rising wall portion including a bent portion having an angle so as to be convex outward.

An ion exchange membrane electrolyzer comprises electrodes at least either of which is held in contact with leaf springs formed integrally with a leaf spring holding member arranged in an electrode chamber so as to extend toward the electrode and remain electrically energized at the respective electrode touching sections thereof, each of the leaf springs having a crooked section arranged at a position separated from its connecting section connecting itself to the leaf spring holding member and adapted to be bent toward the leaf spring holding member when the electrode touching section is pressed toward the leaf spring holding member side.

A vehicle side structure includes: a rocker disposed along a vehicle front-rear direction at a lower section of a vehicle side; and a pillar disposed along a vehicle up-down direction at the vehicle side whereby a lower end section of the pillar is joined to the rocker, the pillar including: a pillar inner panel disposed at a vehicle interior inner side, and a pillar outer panel disposed at a vehicle interior outer side of the pillar inner panel, and the pillar having an opening, formed at a lower section of the pillar inner panel, the pillar inner panel having formed therein a reinforcing section including an extended-out section that extends out toward an outer side in a vehicle width direction from an entire periphery of a peripheral edge of the opening, and a lower section of the reinforcing section being joined to an upper section of the rocker.

The present invention is a gas barrier film laminate comprising at least two gas barrier films and a bonding layer, the at least two gas barrier films being stacked through the bonding layer, the bonding layer having a configuration in which a pressure-sensitive adhesive layer is contiguously stacked on each side of a base film A, the base film A being formed of a synthetic resin having a tensile modulus at 23° C. of 3000 to 10,000 MPa. The present invention is also an electronic device member comprising the gas barrier film laminate. According to the present invention, provided are a gas barrier film laminate that exhibits an excellent gas barrier capability and excellent bendability, an electronic device member that includes the gas barrier film laminate, and an electronic device that includes the electronic device member.

A manufacturing method of a helical core for a rotating electrical machine includes: first step forming a yoke portion extending along one direction and tooth portions protruding toward a width direction of the yoke portion from a first side edge of the width direction, with respect to a belt-shaped metal plate extending along the one direction; second step forming a notch at a position between tooth portions of the yoke portion after the first step; and third step processing the belt-shaped metal plate into a helical shape by applying bending to the metal plate so that the belt-shaped metal plate is curved toward the width direction sequentially from a portion where the notch is formed after the second step, and in the third step, a distance between a position where the application of bending starts and the position where the notch is formed is limited to within a predetermined dimension.

An object of the present invention is to provide an endless track link being able to reduce stress concentrations and to improve efficiency of an assembling process of the endless track link.

The present invention is characterized in that: a reinforcing part (7) is formed in the region in which concentrates are generated in a window area (5); the reinforcing part (7) extends in a direction apart from a track shoe and includes an extended part of a through-hole (a plain through-hole 8 having a smooth inner surface) into which a track shoe connecting bolt is inserted; and a female thread (9) for engaging with the track shoe connecting bolt is formed at the extended part of the through-hole (8).