Abstract: An electrical connector that is reduced in size by appropriately combining connection terminals and a connector housing. Terminal insertion openings (15) for terminal accommodating holes (14) are formed in the rear face of the connector housing (11). The terminal insertion openings (15) each have an elliptic cross-section, and the ellipses are arranged so as to be aligned in a specific direction. Oblong sections of connection sections, having a narrow width, of the connection terminals are inserted into the terminal accommodating holes (14), along the terminal insertion openings (15). The connection terminals are engaged with elastic case lances and connection sections provided in the terminal receiving holes and are fixed in position.
Abstract: An electromagnetic screen (1) comprises a plurality of antennas (4) each of which reflects an electromagnetic wave having a specific frequency. The plurality of antennas (4) are arranged so as to constitute a pattern. Each of the antennas (4) has three segment-shaped first element parts (4a) and three segment-shaped second element parts (4b). The three first element parts (4a) radially extend from the center of the antenna (4) by substantially the same length such that any two of the three first element parts (4a) form an angle of 120° with each other. Each of the second element parts (4b) are connected to an outer edge of a corresponding one of the first element parts (4a).
Abstract: A connection member of simple structure having a high reliability and capable of performing electric cable branching is provided. Connection portions of a plurality of electric cable terminals having an electric cable are respectively inserted into an electric cable terminal insertion hole of a holding body. Cylindrical contact points of the connection portions are aligned in a pin terminal insertion hole and a pin terminal is inserted into the pin terminal insertion hole. The pin terminal is successively inserted into the cylindrical contact points of the electric cable terminals arranged in parallel in the pin terminal insertion hole so that the pin terminal is electrically connected to the plurality of connection portions and the connection portions are short-circuited with one another.
Abstract: Provided is a connecting member by which an electric wire can be branched easily with high reliability. Receptacle connecting ends (2a) of a plurality of wire terminals (2) having wires (3) are inserted into a wire terminal inserting hole (1a) of a holder (1), then, a pin terminal (4a) is inserted into a pin terminal inserting hole (1b) of the pin terminal (4a). The pin terminal (4a) is inserted through a tubular contact (2c) of the receptacle connecting ends (2a) arranged in the pin terminal inserting hole (1b), and electricity is carried between the wire terminals (2) through the pin terminals (4a).
Abstract: A waterproof harness connector that is simple, highly reliable, and can branch a wire. An inner holder is inserted into an outer holder from an opening, and then, joints of wire terminals, where seal members are attached to wires, are inserted into wire terminal holding holes of the inner holder through wire terminal insertion openings of the outer holder. When a pin terminal is inserted into pin terminal insertion hole of the inner holder, the pin terminal penetrates tubular contacts of the joints, which are placed in the holding hole, to electrically connect the wire terminals to each other. After that, a waterproof member is fixed to an opening to make the inside of the outer holder a waterproof structure.
Abstract: An antenna apparatus includes a coaxial cable body configured by covering the peripheral portion of a core forming the power feed line with a first coating dielectric unit, a ground line and a second coating dielectric unit in that order, a main antenna element in which the core either singly or in combination with the first coating dielectric unit projects and extends from the distal end of the coaxial cable body, and an impedance adjustment element in which the ground line projects singly from the distal end of the coaxial cable body, and the impedance adjustment element maintains an orientation extending in a direction that differs from the extension direction of the main antenna element and is fixed to the distal end of the coaxial cable body.
Abstract: An antenna device is provided with a base material having a power feed section to which a power feed line is connected; an antenna element connected to the power feed section; and a matching circuit section, which is connected to the power feed section and the antenna element and matches the reactance of the antenna element and that of the power feed line with each other. The antenna element is provided with an impedance control section, which is annularly formed and has passive components connected thereto, on an opened leading end section.
Abstract: An optical fiber structure (10) includes an optical fiber (11a), and a block-like chip (12) joined to the optical fiber (11a). The block-like chip (12) is tapered toward its fiber-joined end.
Abstract: A circuit board case with an electrical connector comprises a case member having formed thereon a connector mating portion, and a connection member accommodated in the case member and mounted on the connector mating portion to electrically connect the counterpart connector and the circuit board. The connection member comprises a terminal provided with a first bar portion and a second bar portion, and a first fixing member which holds the first bar portion of the terminal and is mounted on the connector mating portion of the case member to fix the terminal, and a second fixing member which holds the second bar portion and is mounted on the case member to regulate movement of the terminal in a direction in which the first bar portion extends into the case member.
Abstract: A method for manufacturing a photonic crystal fiber including arranging a spacer formed of two or more spacer parts in a support tube such that the inner wall surface of the support tube has a substantially regular polygonal cross-sectional shape which allows closest packing of a core rod and a plurality of capillaries or the capillaries only; and forming a preform by packing in a support tube the core rod for forming a solid core and the capillaries for forming a cladding, or by providing a core space for forming a hollow core in a support tube and packing in the support tube a plurality of capillaries for forming the cladding; and drawing the preform into a fiber under heating.
Abstract: A metal seal to improve sealing function by increasing contact pressure under a final assembly state with keeping low fastening force. A metal seal of block shape has a first contact convex portion, a middle base portion, and a second contact convex portion. The first contact convex portion and the second contact convex portion are quarter-circular.
Abstract: An optical fiber includes: a core (1) having an outer diameter (D1) of greater than or equal to 8.2 ?m and less than or equal to 10.2 ?m; a first cladding (2) surrounding the core (1) and having an outer diameter (D2) of greater than or equal to 30 ?m and less than or equal to 45 ?m; a second cladding (3) surrounding the first cladding (2) and having a thickness (T) of greater than or equal to 7.4 ?m; and a support layer (4) surrounding the second cladding (3). The relative refractive index difference which is the ratio of the difference between the refractive index of the support layer (4) and that of the second cladding (3) to the refractive index of the support layer (4) is greater than or equal to 0.5%.
Abstract: In a rotation shaft seal provided with a rubber lip portion, disposed between a housing and a rotation shaft and sliding on the rotation shaft, and a supporting member receiving the lip portion from a low-pressure side, the cross-sectional configuration of the lip portion in free state is a trapezoid diminishing to the end having the maximum thickness portion within an area received by the supporting member.
Abstract: An antenna element has an upstanding section erected from a base member; a tuning section extended from the upper end of the upstanding section into one direction in a parallel plane parallel to the base member, bent in the middle, and then extended in the direction opposite the one direction; and an open element section extended from the front end of the tuning section in the direction in which the open element section spirally turns in the parallel plane about the upstanding section.
Abstract: A rotation shaft seal to prevent inner leak from increasing along high-pressurization of sealed gas. A staged portion is formed on an outer case, and an end face on an inner side of the staged portion is covered with rubber to form a ring rubber portion of which end face is covered. A rubber end face of the rubber portion and a face on a peripheral edge of a seal element are pressed to each other.
Abstract: A harness connection member has a cover member. In fitting a cover member to a holder, a split slit is opened with use of a slit, and wires are inserted into the holder. Thereafter, the cover member is moved to the holder, then moved over one projected annular part of the holder, and fitted into the projected ring parts. A concaved strip part is fitted to a convexed strip part to complete the installation, whereby the cover member cannot be moved relative to the holder in both longitudinal and circumferential directions.
Abstract: On one side of a passageway for an identification subject 10 with an IC tag 7 to pass, an antenna is provided for reading information stored in the IC tag 7, and a front wave-absorbing wall 2 and a rear wave-absorbing wall 3 are provided protruding from the vicinity of the front and rear edges of the antenna 8 toward the passageway 13 such that the walls narrow the half-power angle ? of the radio wave radiated from the antenna 8 over a horizontal plane. A wave-absorbing side wall 1 is also provided on the other side of the passageway 13. With such a structure, the propagation area of the radio wave can be controlled so that the reading area of the IC tag 7 can be limited, and the influence of the reflected wave is suppressed.
Abstract: An anti-slip device provided with a supporting plate of metal or resin having an attachment portion on a reverse face for other members, and a rubber elastic body unitedly mounted on the supporting plate. Plural connection holes are formed from an obverse face to the reverse face of the supporting plate. Further, the rubber elastic body is composed of a receiving piece portion covering approximately whole of the obverse face and a falling-prevention portion from the reverse face to connect the receiving piece portion through a peripheral portion and the connection hole.