Abstract: A wire harness having a shield structure that can exhibit a required shield effect and sufficiently meet demands for cost mitigation and weight reduction is provided. The wire harness is provided with an electrical line group that is held in a bundled manner, in which at least a portion of electrical lines that are positioned on the outer circumferential side of the electrical line group each have a metal thin-film for shielding as the outermost layer, the metal thin-film being formed so as to attach to an outer circumferential surface portion of a sheathing that surrounds a conductor of the electrical line, and a drain wire or another ground connection member that is grounded and comes into contact with the metal thin-films of the electrical lines.

Abstract: A wire harness includes: an electrical wire group including a main electrical wire section, a first branch electrical wire section, and a second branch electrical wire section; a small-diameter tubular exterior member configured to cover the main electrical wire section in the circumferential direction, and on whose base end section side the first branch electrical wire section is located; a large-diameter tubular exterior member configured to cover the main electrical wire section in the circumferential direction, and on whose base end section side the second branch electrical wire section is located; first and second tape-fixing sections; and twist indicator that is provided at a position at which the small-diameter tubular exterior member and the large-diameter tubular exterior member overlap each other, and is configured to indicate the degree of twist of the main electrical wire section between the first branch electrical wire section and the second branch electrical wire section.

Abstract: An electrical line exterior structure for a wire harness is provided that allows water accumulated in a gap formed between adjacent electrical lines or between an exterior member and a group of electrical lines to quickly drain. A tape-like exterior member is wrapped around insulated electrical lines. The exterior member includes a base layer having multiple water suction openings open on the inner circumferential surface that faces the electrical lines, and multiple water suction tube portions that protrude on the outer circumferential surface side of the base layer, and a capillary structure having water suction holes in communication with the water suction openings. When water comes into contact with the electrical lines, negative pressure is generated by capillary action of the water suction holes on the base layer side, and water inside the water suction holes is vaporized on the protruding end side of the water suction tube portions.

Abstract: A wire harness is provided in which, by merely overlap wrapping a binding tape member around a group of lead wires, intruding water can be guided to the outside. The wire harness includes a group of lead wires and a binding tape-type protection portion that covers the group of lead wires. The binding tape-type protection portion is formed by overlap wrapping a binding tape member around the group of lead wires, the binding tape member having a tape member body made of a synthetic resin and an adhesive layer formed on one surface of the tape member body. The tape member body has a plurality of water drain holes that are provided so as to penetrate the wall of the tape member body in the width direction, and that are provided in the lengthwise direction.

Abstract: A sheet for forming a radiant heat shielding corrugated tube as well as a wire harness that provide protection from a metal edge and radiant heat shielding. A sheet for forming a radiant heat shielding corrugated tube includes a corrugated tube-forming sheet base material formed of a synthetic resin sheet that can be bent into a cylindrical shape through which an electric wire group passes with a gap left around the electric wire group, the sheet base material having groove portions on an outer surface side when bent into the cylindrical shape, the groove portions extending in a circumferential direction and being arranged at required intervals in an axial direction, a metal thin film formed on an outer surface of the sheet base material, and a urethane foam agent layer formed on an inner surface of the sheet base material.

Abstract: A method for waterproofing a wire harness that prevents dripping of a water blocking agent from a cap-like heat-shrinkable tube and stably ensures reliability of waterproofing. The method includes immersing exposed conductor portions in a water blocking agent inside a tube material with one end portion thereof closed, and heating, in this state, the tube material and the water blocking agent from outside to heat-cure the water blocking agent while heat-shrinking a heat-shrinkable tube so that the water blocking agent and the heat-shrinkable tube surround coating end portions. A heat-shrinkable cover material holding the tube material so that it can stand upright and surrounding a lower end portion side of the tube material is arranged to form an annular space inside the cover material in advance. During heating, the cover material and the tube material are integrally shrunk and are brought into contact with each other.

Abstract: A grommet waterproofing sheet and a wire harness that enable moisture to be effectively supplied to a waterproofing agent that fills a portion to be covered by an electrical wire group support tube portion of a grommet, to enable the waterproofing agent to be hardened, and to better waterproof the space between electrical wires. The wire harness includes electrical wires and a grommet waterproofing sheet that includes a shape-memory resin sheet having moisture permeability and has shape memory according to which micro bumps are formed when heated to its glass transition temperature. A waterproofing agent is applied to the grommet waterproofing sheet, which is then heated to its glass transition temperature, so that it restores its remembered shape, water molecules that have passed through the waterproofing sheet shape cause the waterproofing agent to cure, and then the electrical wire group support tube portion is placed over the waterproofing sheet.

Abstract: A protector and wire harness according to which, if human labor is used to place a group of electrical lines on a flat plate and wrap adhesive tape around the group of electrical lines and tape fixing portions, it is possible to enclose and protect the group of electrical lines with the flat plate without depending on human labor. The protector is made of a shape-memory polymer sheet with Tg set to a temperature higher than the high temperature reached in summer, and is constituted by a tube-forming flat surface portion and tape fixing portions. The tube-forming flat surface portion is formed with a rectangular shape having a width for folding into a tube shape that allows a group of electrical lines to be inserted and concealed therein, and is shaped as a flat plate with a tape fixing portion extending from at least one end in the lengthwise direction.

Abstract: A protector and a wire harness that have piercing resistance, give shielding capability to the protector, enable reducing the number of man-hours in human labor, and are low cost. In the protector, foaming urethane layers that have a predetermined thickness and contain a high magnetic permeability metal powder are respectively formed on a recessed surface portion of a protector main body and an inner surface portion of a cover portion, and foil films are respectively formed on an outer surface portion of the protector main body and an outer surface portion of the cover portion. The wire harness is formed by using the cover portion to close the opening portion of the recessed surface portion of the protector main body in which a group of electrical lines is inserted and accommodated. Pieces of adhesive tape are wrapped around the protector main body and the cover portion to fasten them.

Abstract: Provided is a wire harness having a shielding structure that can achieve a required shielding effect while sufficiently meeting the requirements of weight reduction and cost reduction. The wire harness includes a wire group constituted by a plurality of wires and a retaining member that surrounds the wire group such that the wire group is retained in the form of a bundle, wherein the wire group is configured to include a first wire composed of a linear conductor that is located toward the center of the wire group, a tube-shaped wire sheathing that surrounds the first wire, and a second wire and a third wire that are composed of an opposing pair of split tube-shaped conductors that are insulated from each other with the first wire and the wire sheathing being interposed therebetween.

Abstract: A heat-shrinkable slitted tube includes a tube main body capable of bending into a tube shape and which shrinks due to application of heat; and a heat-resistant tape which, in a closed state where the tube main body is deformed so as to close a slit extending in a length direction, fastens together areas proximate to two end portions of the tube main body so as to maintain the closed state. In the heat-shrinkable slitted tube, in a case where, by affixing the heat-resistant tape to the tube main body such that one of the end portions is positioned at a short-direction center portion of an indicator of the heat-resistant tape, the other end portion is brought together with the end portion to achieve the closed state, the heat-resistant tape is affixed so as to intervene between the areas proximate to the two end portions.

Abstract: A wire harness is provided in which, by merely overlap wrapping a binding tape member around a group of lead wires, intruding water can be guided to the outside. The wire harness includes a group of lead wires and a binding tape-type protection portion that covers the group of lead wires. The binding tape-type protection portion is formed by overlap wrapping a binding tape member around the group of lead wires, the binding tape member having a tape member body made of a synthetic resin and an adhesive layer formed on one surface of the tape member body. The tape member body has a plurality of water drain holes that are provided so as to penetrate the wall of the tape member body in the width direction, and that are provided in the lengthwise direction.

Abstract: A water blocking structure for an insulation-coated wire includes a heat-shrinkable tubular protective member that is closed at one end and that accommodates an intermediate portion of an insulation-coated wire that is bent in a folded-backward direction, and a resin material that is accommodated in the protective member and that penetrates the intermediate portion of the insulation-coated wire. A slit portion is formed by a cutting instrument in a coating of the insulation-coated wire within a region where the intermediate portion is bent in the folded-backward direction, and a water blocking agent penetrates the intermediate portion via this slit portion.

Abstract: A wire harness that can reliably waterproof spaces between an intermediate splice portion and element wires of lead wire exposed portions is provided. The wire harness includes an electrical line group, a water stopper, and a sealing agent. The electrical line group has an intermediate splice portion that electrically connect exposed portions of the lead wire of multiple sheathed electrical lines. The water stopper integrally covers the intermediate splice portion and the exposed portions of the lead wires. The sealing agent is applied to the surface of the water stopper that faces the electrical line group. The water stopper is a heat-shrinking material that shrinks in a direction orthogonal to the axial direction of the lead wire, and is formed into a tube by wrapping the sheet around the electrical line group and shrinking the sheet of material.

Abstract: A wire harness having high productivity and a portion of an electrical line group configured to be easily housed in a protector without requiring the task of opening an overlapping portion of the protector, and a method for manufacturing said wire harness are provided. The protector includes a shape-memory panel having a shape-memory polymer sheet and noise suppression metal coating films formed on two surfaces thereof and are electrically conductive with each other. The shape-memory polymer sheet is molded in a shape-memory state for covering a portion of the electrical line group in a scroll-like manner, and then opened into a flat plate shape. The portion of the electrical line group is placed on the flat plate-shaped shape-memory panel, and then heated so that the shape-memory panel returns to the shape-memory state and covers the portion of the electrical line group in a scroll-like manner.

Abstract: A water blocking structure for an insulation-coated wire includes a heat-shrinkable tubular protective member that is closed at one end by a stopper and that accommodates an intermediate portion of an insulation-coated wire, and a resin material that is accommodated in the tubular member and that penetrates the intermediate portion of the insulation-coated wire, the resin material serving as a water blocking agent. Slit portions are formed in a coating of the insulation-coated wire, and the resin material penetrates the intermediate portion via these slit portions. A coating stripping member with a blade whose cutting edges are directed to the inside of the respective slit portions is contained within the protective member.

Abstract: A wire harness having a shield structure that can exhibit a required shield effect and sufficiently meet demands for cost mitigation and weight reduction is provided. The wire harness is provided with an electrical line group that is held in a bundled manner, in which at least a portion of electrical lines that are positioned on the outer circumferential side of the electrical line group each have a metal thin-film for shielding as the outermost layer, the metal thin-film being formed so as to attach to an outer circumferential surface portion of a sheathing that surrounds a conductor of the electrical line, and a drain wire or another ground connection member that is grounded and comes into contact with the metal thin-films of the electrical lines.

Abstract: Provided is a wire harness having a shielding structure that can achieve a required shielding effect while sufficiently meeting the requirements of weight reduction and cost reduction. The wire harness includes a wire group constituted by a plurality of wires and a retaining member that surrounds the wire group such that the wire group is retained in the form of a bundle, wherein the wire group is configured to include a first wire composed of a linear conductor that is located toward the center of the wire group, a tube-shaped wire sheathing that surrounds the first wire, and a second wire and a third wire that are composed of an opposing pair of split tube-shaped conductors that are insulated from each other with the first wire and the wire sheathing being interposed therebetween.

Abstract: A wire harness shield structure that can exhibit a required shield effect while sufficiently meeting demands for weight reduction and cost mitigation is provided. The wire harness shield structure includes: an exterior member that encloses an electrical line group so as to hold the electrical line group in a bundled manner, the electrical line group being constituted by a plurality of electrical lines; a shield material that encloses a predetermined section of the electrical line group that is to be shielded; and a ground connection member that grounds the shield member. A heat shrink tube that holds the electrical line group in the bundled manner constitutes the exterior member, and the shield material is constituted by a metal thin-film that is formed to attach to an inner circumferential surface portion of the heat shrink tube.

Abstract: A wire harness electrical line exterior structure has favorable workability in a wire harness mounting task, prevents unnecessary constricting force from being applied to an electrical line group by an exterior member after mounting, and allows an improvement in the bendability and the durability of the electrical line group. The wire harness electrical line exterior structure includes an electrical line group including electrical lines, and an exterior member enclosing the electrical line group. The exterior member includes a shape memory material attached to the electrical line group in a first exterior orientation adjacent thereto. The shape memory material is molded so as to be capable of returning to a predetermined remembered shape. When the shape memory material is heated so as to return to the remembered shape, the exterior member increases in width from the first exterior orientation to a second exterior orientation separated from the electrical line group.