Abstract: A conductor made of a single wire is crimped and fixed securely by a conductor crimping portion to achieve the reliability of electrical connection. In a conductor crimping portion, first and second crimping pieces each having a two-layer structure of an inner layer plate and an outer layer plate are raised in a U-shape in advance. A conductor made of a single wire is disposed between the crimping pieces. The outer layer plate and the inner layer plate are pressed to caulk and fix the conductor from all sides. In caulking the conductor, pressing forces in two directions, which are a pressing force from below toward the center of the conductor and a pressing force from obliquely upward toward the center of the conductor, are applied to form non-pressing portions between the inner layer plate and the conductor between pressing portions making contact with the conductor.

Abstract: A locking plate portion is disposed so as to be movable in a lateral direction. A connection terminal is inserted while a locking piece of a connection portion of the connection terminal passes through an insertion groove of the locking plate portion Subsequently, an operating member is pushed in an arrow direction with respect to the locking plate portion and the locking plate portion is laterally moved by a wedge mechanism. Then, the locking piece is transferred to a locking portion provided in the front end side portion of the insertion groove. As a result, the locking portion locks the rear portion of the locking piece and a rearward movement of the connection terminal is regulated.

Abstract: [Problem] To allow a plurality of connection terminals to be reliably arranged in a storage case, and the storage case to be placed into a housing. [Means for Resolution] A storage case 1 has a storage portion 2 in which female connection terminals T including connection portions at front ends are arranged in parallel along storage grooves 2d, and a cover 3 that covers the storage portion 2, and tubular temporarily storing portions 2i for inserting tips of connection portions Ta of the female connection terminals T for temporary storage are provided at the fronts of the respective storage grooves 2d.

Abstract: A locking plate portion is disposed so as to be movable in a lateral direction. A connection terminal is inserted while a locking piece of a connection portion of the connection terminal passes through an insertion groove of the locking plate portion Subsequently, an operating member is pushed in an arrow direction with respect to the locking plate portion and the locking plate portion is laterally moved by a wedge mechanism. Then, the locking piece is transferred to a locking portion provided in the front end side portion of the insertion groove. As a result, the locking portion locks the rear portion of the locking piece and a rearward movement of the connection terminal is regulated.

Abstract: [Problem] To allow a plurality of connection terminals to be reliably arranged in a storage case, and the storage case to be placed into a housing. [Means for Resolution] A storage case 1 has a storage portion 2 in which female connection terminals T including connection portions at front ends are arranged in parallel along storage grooves 2d, and a cover 3 that covers the storage portion 2, and tubular temporarily storing portions 2i for inserting tips of connection portions Ta of the female connection terminals T for temporary storage are provided at the fronts of the respective storage grooves 2d.

Abstract: [Problem] To obtain a composite electric wire with high electrical conductivity and high plasticity. [Means for Resolution] A conductive layer 3 is disposed around a central core wire 2 and an insulating coating layer 4 is provided around the conductive layer 3 in a composite electric wire having an outer diameter of approximately 500 ?m. The core wire 2 is made of four middle wires 2a to 2d twisted together. Each of the middle wires 2a to 2d is made by twisting a strand made of 48 aramid fibers. As for the conductive layer 3, 12 copper wires 3a with a diameter of 80 ?m are closely and spirally wound around the core wire 2 and the circumference of the copper wires 3a is shaped into a circle by tightening.

Abstract: Seal portions at two locations communicate with each other and are integrated with each other to realize a waterproof structure. A first seal portion is provided onto an outer surface at a tip of a central cylinder inside a housing main body to realize a waterproof structure where a gap between the outer surface and a housing of a mating electrical connector is sealed in a waterproof manner. The seal portion is also connected to an inner surface of the central cylinder through a communication hole provided in the central cylinder, and a second seal portion is provided on the inner surface, integrally with the seal portion, to realize a waterproof structure where a gap between the inner surface and a terminal holder is sealed in a waterproof manner.

Abstract: In a conductor crimping portion 3, a pair of crimping pieces 3c and 3d having a two-layer structure of an upper layer plate 3a and a lower layer plate 3b connecting the upper layer plate 3a is raised in a U-shape from both sides of a bottom portion 3e. A void 3g is formed inside a folded-back portion of the upper layer plate 3a from the lower layer plate 3b. In the conductor crimping portion 3, the crimping pieces 3c and 3d have a two-layer structure, and a conductor portion is elastically fixed and connection becomes strong due to the presence of the void 3g.

Abstract: Seal portions at two locations communicate with each other and are integrated with each other to realize a waterproof structure. A first seal portion is provided onto an outer surface at a tip of a central cylinder inside a housing main body to realize a waterproof structure where a gap between the outer surface and a housing of a mating electrical connector is sealed in a waterproof manner. The seal portion is also connected to an inner surface of the central cylinder through a communication hole provided in the central cylinder, and a second seal portion is provided on the inner surface, integrally with the seal portion, to realize a waterproof structure where a gap between the inner surface and a terminal holder is sealed in a waterproof manner.

Abstract: In a conductor crimping portion 3, a pair of crimping pieces 3c and 3d having a two-layer structure of an upper layer plate 3a and a lower layer plate 3b connecting the upper layer plate 3a is raised in a U-shape from both sides of a bottom portion 3e. A void 3g is formed inside a folded-back portion of the upper layer plate 3a from the lower layer plate 3b. In the conductor crimping portion 3, the crimping pieces 3c and 3d have a two-layer structure, and a conductor portion is elastically fixed and connection becomes strong due to the presence of the void 3g.

Abstract: In the conductor crimping portion (3), side portions (3a, 3b) are folded into a bottom layer plate (3c) and a top layer plate (3d), and edges of the side portions (3a, 3b) are abutted against each other to form a joint (3g). Additionally, three long groove-like punched long holes (3i to 3k), for example, are provided in an oblique direction with respect to a longitudinal direction of the crimp connection terminal in a bottom portion (3h) of the top layer plate (3d). A shallow round recessed portion (3l) is formed in the surface of the punched long hole (3i) by stamping. Edges (3m) of this recessed portion (3l) and new edges (3n?) formed by edges (3n) of the punched long hole (3i), obtained by the punching, being pushed inward by the stamping are formed in two steps.

Abstract: In the conductor crimping portion (3), side portions (3a, 3b) are folded into a bottom layer plate (3c) and a top layer plate (3d), and edges of the side portions (3a, 3b) are abutted against each other to form a joint (3g). Additionally, three long groove-like punched long holes (3i to 3k), for example, are provided in an oblique direction with respect to a longitudinal direction of the crimp connection terminal in a bottom portion (3h) of the top layer plate (3d). A shallow round recessed portion (3l) is formed in the surface of the punched long hole (3i) by stamping. Edges (3m) of this recessed portion (3l) and new edges (3n?) formed by edges (3n) of the punched long hole (3i), obtained by the punching, being pushed inward by the stamping are formed in two steps.

Abstract: A terminal relay member includes a plurality of relay terminals, each of which has a body section in which an opening is formed so as to penetrate the body section, and a terminal section to be connected to the circuit board; and a covering section for covering the body sections. The covering section includes holes corresponding to the openings. The opening is configured so that, by inserting a terminal pin of a connector to the opening, a part of the body section around the opening is deformed toward an inner wall of the hole of the covering section to contact the terminal pin.

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: A circuit board includes a foil circuit provided on a synthetic resin plate formed by injection molding, made of a copper foil, and having a pattern different for the circuit board. Anchor pins projecting upward are provided on the resin plate and passed through pinholes made in the foil circuit. The foil circuit is positioned and secured to the resin plate. In a required portion of the resin plate, a terminal insertion hole is provided, and a receiving terminal is secured to the required portion of the terminal insertion hole and connected to the foil circuit.

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 connector housing that is reduced in size in correspondence with reduction in size of a terminal. When a connecting terminal to which an electric wire and a waterproof sealing member are attached is inserted into a terminal accommodating hole from an terminal insertion opening, a step of the waterproof sealing member abuts against a step of the terminal insertion opening and also a taper surface meets a taper surface, preventing water from entering the terminal accommodating hole from the backside. In this state, the waterproof sealing member is pressed toward a connector housing by a rear holder to prevent the waterproof sealing member from falling out of position. Thus, because the terminal insertion opening is sealed, with a part of the waterproof sealing member placed outside the connector housing, the lateral width and vertical width of the terminal accommodating hole can be set to the magnitudes that substantially allow the connecting terminal to pass through the hole.

Abstract: A pivoting lever has tongue-like movable pieces formed in a squared U-shape on both side faces of a cover member, and locking claws at intermediate parts of the movable piece. A pivoting lever is pivotally supported on a support pin of the cover member. Circular arc-shaped cam grooves are formed in a lever body part, and locking holes engaging locking claws are formed in the lever body part. When a mating housing is pressed into a housing and the lever is pivoted, the cam grooves drive a driven pin and pull the mating housing toward the housing. The lever contacts the locking claws, and pivots the locking claws while pushing them down. When the housings are joined, the locking claws returned to the original positions fitted into the locking holes, setting the lever to a locked state, thereby disabling further rotation and reverse rotation of the lever.

Abstract: An electric connector capable of fixing a small connection terminal by a large locking force. Two housings having a plurality of connection terminals are placed vertically symmetrically with their open surfaces facing each other, and a holder having a lock is interposed between the open surfaces of the housings. An assembly of the housings and the holder is accommodated in an outer cover, and a bottom cover is fixed to the bottom of the outer cover. The connection terminals are rigidly prevented from moving backward and vertically by the housings and the holder, and from moving forward by a front wall of the outer cover.

Abstract: A terminal relay member includes a plurality of relay terminals, each of which has a body section in which an opening is formed so as to penetrate the body section, and a terminal section to be connected to the circuit board; and a covering section for covering the body sections. The covering section includes holes corresponding to the openings. The opening is configured so that, by inserting a terminal pin of a connector to the opening, a part of the body section around the opening is deformed toward an inner wall of the hole of the covering section to contact the terminal pin.