Abstract: The present invention is to provide a wire harness capable of improving productivity and reducing cost as well as enhancing waterproof performance to secure reliability, and a method for manufacturing the wire harness, The wire harness includes an electronic wire having a core wire and a covering part covering the core wire, a male terminal attached to the core wire exposed out of the covering part of the electric wire, a housing attached to the covering part and formed to lay the male terminal therein, and a ring-shaped waterproof member disposed between the housing and the covering part, filling a gap therebetween, and made of soft resin.

Abstract: A crimping apparatus includes an anvil for supporting a metal terminal including a base plate portion for mounting an electric wire thereon and a pair of crimping piece portions extending upwardly respectively from opposite side edges of the base plate portion and a crimper which includes a groove portion being opposed to a supporting portion of the anvil. An inner surface of the groove portion of the anvil and a terminal support face of the supporting portion of the crimper cooperate to press the crimping piece portions for crimping the crimping piece portions to the electric wire mounted on the metal terminal. A width of the groove portion of the crimper is not more than 1.0 mm. The terminal support surface of the anvil is formed into a concavely curved surface in which a depth of the concavely curved surface is not smaller than 0.06 mm and is not larger than 0.17 mm in a cross-section of the anvil perpendicular to an axis direction of the electric wire.

Abstract: A forming apparatus for forming a wire joint portion including a connection portion and an insulative tube covering the connection portion is provided. The forming apparatus includes: a production information acquiring unit which acquires production information; a connection portion forming unit which fixes a plurality of wires selected on the basis of the production information, and then electrically connects conductor portions of the wires together to form the connection portion; a first fusing unit which fuses one open end portion of the insulative tube to close the one open end portion; an inserting unit which moves the wires so as to insert the connection portion into the insulative tube through the other open end portion of the insulative tube; a second fusing unit which fuses the other open end portion of the insulative tube and insulative sheaths of the wires together so as to form the wire joint portion.

Abstract: The present invention is to provide a wire harness capable of improving productivity and reducing cost as well as enhancing waterproof performance to secure reliability, and a method for manufacturing the wire harness. The wire harness comprises an electronic wire having a core wire and a covering part covering the core wire, a male terminal attached to the core wire exposed out of the covering part of the electric wire, a housing attached to the covering part and formed to lay the male terminal therein, and a ring-shaped waterproof member disposed between the housing and the covering part, filling a gap therebetween, and made of soft resin.

Abstract: A forming apparatus for forming a wire joint portion including a connection portion and an insulative tube covering the connection portion is provided. The forming apparatus includes: a production information acquiring unit which acquires production information; a connection portion forming unit which fixes a plurality of wires selected on the basis of the production information, and then electrically connects conductor portions of the wires together to form the connection portion; a first fusing unit which fuses one open end portion of the insulative tube to close the one open end portion; an inserting unit which moves the wires so as to insert the connection portion into the insulative tube through the other open end portion of the insulative tube; a second fusing unit which fuses the other open end portion of the insulative tube and insulative sheaths of the wires together so as to form the wire joint portion.

Abstract: A terminal crimping structure includes a terminal crimped to a copper alloy wire. The terminal has a crimping piece portion crimped to the copper alloy core wire portion. A rate of compression of the copper alloy core wire portion, of a particular diameter, by the crimping piece portion is determined from a relative relation between a parameter varying according to the ratio of (the cross-sectional area of the copper alloy core wire portion at a crimped portion)/(the cross-sectional area of the copper alloy core wire portion before crimping) and a parameter varying according to the ratio of (a cross-sectional area of an annealed copper core wire portion at a crimped portion)/the cross-sectional area of the annealed copper core wire portion before crimping) which is the rate of compression of the annealed copper core wire portion by the crimping piece portion.

Abstract: A crimping apparatus includes an anvil for supporting a metal terminal including a base plate portion for mounting an electric wire thereon and a pair of crimping piece portions extending upwardly respectively from opposite side edges of the base plate portion and a crimper which includes a groove portion being opposed to a supporting portion of the anvil. An inner surface of the groove portion of the anvil and a terminal support face of the supporting portion of the crimper cooperate to press the crimping piece portions for crimping the crimping piece portions to the electric wire mounted on the metal terminal. A width of the groove portion of the crimper is not more than 1.0 mm. The terminal support surface of the anvil is formed into a concavely curved surface in which a depth of the concavely curved surface is not smaller than 0.06 mm and is not larger than 0.17 mm in a cross-section of the anvil perpendicular to an axis direction of the electric wire.

Abstract: A terminal crimping apparatus includes an anvil for supporting a metal terminal including a base plate portion for placing an electric wire thereon and a pair of crimping piece portions extending upwardly respectively from opposite side edges of the base plate portion and a crimper which includes a press-deforming portion having a generally arch-shape formed of two arc-shaped surfaces which are opposed to the anvil. The anvil and the crimper cooperate to press the crimping piece portions for crimping the crimping piece portions to the electric wire placed on the metal terminal. The shape of the crimper satisfies a formula, Index a=c·cos ?, where c represents a length of the arc-shaped surface of the crimper, and ? represents an angle formed by a tangential line to the arc-shaped surface at a central portion of the crimper and a vertical line.

Abstract: A crimping apparatus includes an anvil for supporting a metal terminal including a base plate portion for mounting an electric wire thereon and a pair of crimping piece portions extending upwardly respectively from opposite side edges of the base plate portion and a crimper which includes a groove portion being opposed to a supporting portion of the anvil. An inner surface of the groove portion of the anvil and a terminal support face of the supporting portion of the crimper cooperate to press the crimping piece portions for crimping the crimping piece portions to the electric wire mounted on the metal terminal. A width of the groove portion of the crimper is not more than 1.0 mm. The terminal support surface of the anvil is formed into a concavely curved surface in which a depth of the concavely curved surface is not smaller than 0.06 mm and is not larger than 0.17 mm in a cross-section of the anvil perpendicular to an axis direction of the electric wire.

Abstract: A crimping apparatus includes an anvil for supporting a metal terminal including a base plate portion for mounting an electric wire thereon and a pair of crimping piece portions extending upwardly respectively from opposite side edges of the base plate portion, and a crimper which has a press-fastening portion for press-fastening the crimping piece portions. The anvil and the press-fastening portion of the crimper cooperate to press-fasten the crimping piece portions for crimping the crimping piece portions to the electric wire mounted on the metal terminal. The press-fastening portion is subjected to a mirror finish.

Abstract: An intermediate portion of an insulating sheath of a coaxial cable is removed, and a first insulating sheath portion is drawn toward a second insulating sheath portion, so that a braid is projected into an annular shape outwardly from an interval between opposed ends of the first and second insulating sheath portions to form an annular projecting braid portion, and this annular projecting braid portion is fixed so as to be connected to a portion (that is, a braid fixing portion) of a coaxial cable shielding terminal for connection to an end portion of the coaxial cable. This connecting and fixing operation is effected by press-contacting or press-clamping.

Abstract: An apparatus for measuring a metal terminal includes a crimping unit which crimps core wire crimping piece portions to a core wire of a sheathed electric wire to form a core wire crimping portion and crimps sheath crimping piece portions to a sheath portion of the sheathed electric wire to form a sheath crimping portion, a gripping member which grips the core wire crimping portion in a direction perpendicular to an extending direction of a base plate portion of the metal terminal, and a measuring unit which measures a dimension of the core wire crimping portion and a dimension of the sheath crimping portion. A height of the sheath crimping portion is measured in a direction intersecting with or parallel to the direction of gripping of the core wire crimping portion in a state that the core wire crimping portion is gripped in a direction perpendicular to an extending direction of the base plate portion.

Abstract: In a water-stop structure of a sheathed wire of the invention, a water-stop member includes an upper member and a lower member, and the upper member has a recess disposed above water-stop portions so that ultrasonic vibrations of an ultrasonic horn can be transmitted to the water-stop portions from a region closer to the water-stop portions. The ultrasonic horn has a protrusion which is formed on a lower surface thereof, and can be fitted to the recess in the upper member. In this sheathed wire water-stop structure, vibrations of the ultrasonic horn can be transmitted to the water-stop portions from the region closer to the water-stop portions, and therefore the ultrasonic vibrations can be efficiently transmitted, so that the welding time can be reduced, and besides the production cost can be reduced.

Abstract: An intermediate portion of an insulating sheath of a coaxial cable is removed, and a first insulating sheath portion is drawn toward a second insulating sheath portion, so that a braid is projected into an annular shape outwardly from an interval between opposed ends of the first and second insulating sheath portions to form an annular projecting braid portion, and this annular projecting braid portion is fixed so as to be connected to a portion (that is, a braid fixing portion) of a coaxial cable shielding terminal for connection to an end portion of the coaxial cable. This connecting and fixing operation is effected by press-contacting or press-clamping.

Abstract: A metal terminal includes a base plate portion for placing an electric wire thereon and a pair of crimping piece portions which extend upwardly respectively from opposite side edges of the base plate portion for press-contacting the electric wire. Each of the crimping piece portions has a distal end portion and a body portion such that a thickness of the each of crimping piece portions is tapered toward a distal end surface of the distal end portion from the body portion. A thickness of a distal end of the distal end portion relative to a board thickness T of the body portion of the each of crimping piece portions is not smaller than ?T and is less than ½T. An exterior angle of an angle formed by the distal end surface of the distal end portion and a tapered surface of the distal end portion is 60° to 30°.

Abstract: An intermediate portion of an insulating sheath of a coaxial cable is removed, and a first insulating sheath portion is drawn toward a second insulating sheath portion, so that a braid is projected into an annular shape outwardly from an interval between opposed ends of the first and second insulating sheath portions to form an annular projecting braid portion, and this annular projecting braid portion is fixed so as to be connected to a portion (that is, a braid fixing portion) of a coaxial cable shielding terminal for connection to an end portion of the coaxial cable. This connecting and fixing operation is effected by press-contacting or press-clamping.

Abstract: A crimping apparatus includes an anvil for supporting a metal terminal including a base plate portion for mounting an electric wire thereon and a pair of crimping piece portions extending upwardly respectively from opposite side edges of the base plate portion, and a crimper which has a press-fastening portion for press-fastening the crimping piece portions. The anvil and the press-fastening portion of the crimper cooperate to press-fasten the crimping piece portions for crimping the crimping piece portions to the electric wire mounted on the metal terminal. The press-fastening portion is subjected to a mirror finish.

Abstract: A terminal crimping apparatus includes an anvil for supporting a metal terminal including a base plate portion for placing an electric wire thereon and a pair of crimping piece portions extending upwardly respectively from opposite side edges of the base plate portion, and a crimper which includes a press-fastening portion having a generally arch-shape formed of two arc-shaped surfaces which are opposed to the anvil. The anvil and the crimper cooperate to press-fasten the crimping piece portions for crimping the crimping piece portions to the electric wire placed on the metal terminal. A radius R of curvature of each of the two arc-shaped surfaces of the press-fastening portion of the crimper is determined so as to satisfy the following formula: 0.25 W?R?0.27 W, where W represents a predetermined width of a crimped portion to be formed.

Abstract: An apparatus for measuring a metal terminal includes a crimping unit which crimps core wire crimping piece portions to a core wire of a sheathed electric wire to form a core wire crimping portion and crimps sheath crimping piece portions to a sheath portion of the sheathed electric wire to form a sheath crimping portion, a gripping member which grips the core wire crimping portion in a direction perpendicular to an extending direction of a base plate portion of the metal terminal, and a measuring unit which measures a dimension of the core wire crimping portion and a dimension of the sheath crimping portion. A height of the sheath crimping portion is measured in a direction intersecting with or parallel to the direction of gripping of the core wire crimping portion in a state that the core wire crimping portion is gripped in a direction perpendicular to an extending direction of the base plate portion.

Abstract: A terminal crimping structure includes a terminal that is crimped to a copper alloy wire of an electric wire which has a copper alloy core wire portion composed of a copper alloy wire element and a sheath portion covering the copper alloy core wire portion. The terminal has a crimping piece portion crimped to the copper alloy core wire portion. In the case where a cross-sectional area of the copper alloy core wire portion is 0.08 mm2 to 0.