Abstract: Disclosed is a metal joint having improved electrical characteristics and mechanical strength. A center swaged part (2) formed by putting metal plates (11, 12) on top of each other, cutting the metal plates (11, 12) along a first to a fourth cut lines (L1 to L4), and depressing a part surrounded by the first to the fourth cut lines (L1 to L4). Metal joint parts are formed on cut surfaces of the first to the fourth cut lines (L1 to L4) because the cut surfaces of the first to forth cut lines (L1 to L4) are, while rubbing each other, depressed.

Abstract: A crimping structure includes a crimping terminal that has a base plate and a crimping blade part on the base plate, a coated electric wire that has a conductor which is electrically connected to the crimping blade part by crimping the coated electric wire to the crimping blade, and is bend to be formed into a mountain-like shape whose top part is a connecting part where the conductor and the crimping blade part are connected, and an insulative resin part that covers a part of the coated electric wire from the top part to hem parts at two sides of the mountain-like shape and the crimping blade part.

Abstract: When a first terminal and a second terminal are respectively attached to a terminal holder and held, a board connection part and a second board connection part are inserted into a prescribed through hole of a circuit board under a state that the board connection part and the second board connection part are superposed one upon another and put together. Further, after that, a soldering operation is carried out, an electric connection of the first terminal and the second terminal and an electric connection to the circuit board are completed.

Abstract: A bus bar is made by punching a single metal plate and by folding two-dot chain line portions. The bus bar includes: a power input portion into which the power is inputted; a tuning-fork-shaped terminal into which a relay terminal is inserted; a plurality of substrate connecting portions soldered to a printed circuit board; and a routing portion. The routing portion includes: a trunk portion extended in a band shape from the power input portion; a plurality of branch portions branching off from the trunk portion to the tuning-fork-shaped terminal and the substrate connecting portions. A width of the trunk portion is formed gradually narrower as extending away from the power input portion. Namely, widths of the trunk portion further away from the power input portion than the branch portion are formed narrower than a width from the power input portion to the branch portion.

Abstract: A crimping structure includes a crimping terminal that has a base plate and a crimping blade part on the base plate, a coated electric wire that has a conductor which is electrically connected to the crimping blade part by crimping the coated electric wire to the crimping blade, and is bend to be formed into a mountain-like shape whose top part is a connecting part where the conductor and the crimping blade part are connected, and an insulative resin part that covers a part of the coated electric wire from the top part to hem parts at two sides of the mountain-like shape and the crimping blade part.

Abstract: For providing a fuse block in which a printed circuit board can be miniaturized, the fuse block includes a plurality of busbars formed into an L-shape. Each of the busbars is provided at one end thereof with at least one tuning-fork shaped connecting portion to be connected with a fuse, and at the other end thereof with at least one board connecting portion to be connected with a printed circuit board by soldering. The busbars are arranged in parallel along a direction X and overlapped along a direction Y to form four layers. The board connecting portion of the busbar in a third layer numbered from the printed circuit board and the board connecting portion of the busbar in a second layer are arranged in one row on one straight line, so that total number of the rows is smaller than total number of the layers.

Abstract: Disclosed is a metal joint having improved electrical characteristics and mechanical strength. A center swaged part (2) formed by putting metal plates (11, 12) on top of each other, cutting the metal plates (11, 12) along a first to a fourth cut lines (L1 to L4), and depressing a part surrounded by the first to the fourth cut lines (L1 to L4). Metal joint parts are formed on cut surfaces of the first to the fourth cut lines (L1 to L4) because the cut surfaces of the first to forth cut lines (L1 to L4) are, while rubbing each other, depressed.

Abstract: A bus bar is made by punching a single metal plate and by folding two-dot chain line portions. The bus bar includes: a power input portion into which the power is inputted; a tuning-fork-shaped terminal into which a relay terminal is inserted; a plurality of substrate connecting portions soldered to a printed circuit board; and a routing portion. The routing portion includes: a trunk portion extended in a band shape from the power input portion; a plurality of branch portions branching off from the trunk portion to the tuning-fork-shaped terminal and the substrate connecting portions. A width of the trunk portion is formed gradually narrower as extending away from the power input portion. Namely, widths of the trunk portion further away from the power input portion than the branch portion are formed narrower than a width from the power input portion to the branch portion.

Abstract: For providing a fuse block in which a printed circuit board can be miniaturized, the fuse block includes a plurality of busbars formed into an L-shape. Each of the busbars is provided at one end thereof with at least one tuning-fork shaped connecting portion to be connected with a fuse, and at the other end thereof with at least one board connecting portion to be connected with a printed circuit board by soldering. The busbars are arranged in parallel along a direction X and overlapped along a direction Y to form four layers. The board connecting portion of the busbar in a third layer numbered from the printed circuit board and the board connecting portion of the busbar in a second layer are arranged in one row on one straight line, so that total number of the rows is smaller than total number of the layers.

Abstract: A coating insulator layer has plural rows of through holes disposed longitudinally in the coating insulator layer. A plurality of conductors are disposed in parallel with one another longitudinally in the coating insulator layer. Each conductor does not interfere with the through holes. Plural rows of locking projections are longitudinally formed on a face of the coating insulator layer. The locking projection has a construction to engage with the through hole. Thus, when a couple of the wiring substrates are layered, some of the locking projections formed on one of the wiring substrates are aligned to be engaged with some relative through holes of the other wiring substrate, allowing a sure lamination of the wiring substrates. The locking projections are disposed in regular intervals and the through holes are spaced in the same regular intervals. Another wiring substrate is enough flexible to be arranged along a structural wall for wiring.

Abstract: The disclosed lamp wiring structure includes a connector, a plurality of bulb sockets which are electrically connected to the connector and to which lamps are installed, respectively, a plurality of electric wires electrically connecting the connector and the plural bulb sockets, a plurality of lamp containers, and a coupling member covering the plural electric wires and mechanically coupling the connector to the plural bulb sockets. In addition, the disclosed socket coupling structure includes a bulb socket to which a lamp is installed, a flange formed around the bulb socket, a lamp container which has a lamp insertion hole and to which the bulb socket is fixed, a fixed claw formed around the lamp insertion hole of the lamp container and a movable claw formed around the lamp insertion hole of the lamp container.

Abstract: An electrical junction box main body has a first connector, and a junction box receiving case for receiving the junction box main body has a slanting cam groove. A connector block for receiving a second connector engaged with the first connector has a driving pin slidingly engaged with the cam groove. Insertion of the junction box main body into the junction box receiving case causes the connector block to move toward the junction box main body by the driving pin guided by the cam groove.

Abstract: A wiring apparatus of a function embedded type comprises a circuit unit having a functional circuit and a signal circuit for inputting and outputting signals through external wire harnesses; a junction block including a bus bar circuit having a branch function; first and second connectors being respectively disposed in the circuit unit and the junction block, the signal circuit being connected onto the junction block side through the first and second connectors with respect to an external wire harness with no route of the bus bar circuit; and a third connector for an external wire harness of the signal circuit, disposed on the junction block side in proximity to the second connector.

Abstract: To decrease the number of connectors and increase the connection reliability in a controller-including wiring apparatus for an automotive vehicle, the apparatus comprises (a) a junction block having at least one bus bar circuit board on which harness branch circuits are arranged and to which electric devices are connectable; (b) a controller unit having at least one printed circuit board on which control circuits are arranged to control the electric devices; and (c) a plurality of junction terminals collectively arranged at an end of the junction block and having first and second ends and middle portions, some of the middle portions being joined to the branch circuits, the first ends being for coupling to said controller unit and the second ends being for coupling to the wire harness.

Abstract: An improved wiring system is provided in which a connector box having a plurality of terminals, electrical circuitry, and bus bars is incorporated. Since each bus bar provides forked conductive paths between the circuitry and the terminals, the terminals of the connector box and outside connectors can be connected by way of wires in a one-to-one correspondence. This simplified wiring mode greatly reduces manual labor in the manufacture of wire harnesses. Moreover, if a plurality of connector boxes of such structure as above are provided, they can be arranged in the vicinity of any of the electrical equipment of the vehicle due to their compact structure, thus minimizing the arrangement of power line wires in the car body.