Abstract: A low-cost water blocking structure for an insulation-coated wire that can ensure high water blocking ability and favorable workability at an intermediate portion of the insulation-coated wire as well as a wire harness are provided. 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 low-cost water blocking structure for an insulation-coated wire that can ensure high water blocking ability and favorable workability as well as a wire harness are provided. 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 protective member and that penetrates the intermediate portion of the insulation-coated wire. Slit portions are formed in a coating of the insulation-coated wire within the protective member, the slit portions extending in a direction that crosses the axis of the insulation-coated wire on opposite sides of the intermediate portion with respect to a radial direction, and a water blocking agent penetrates the intermediate portion via these slit portions.

Abstract: A low-cost water blocking structure for an insulation-coated wire that can ensure high water blocking ability and favorable workability at an intermediate portion of the insulation-coated wire as well as a wire harness are provided. 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 waterproof structure for stopping water between bare wires of multiple circuits stopping water between bare wires all together for plural covered wires is provided. It is provided with plural covered wires each of which has a stripped wire exposed part formed by removing a cover material in an intermediate portion thereof, and is folded over at the stripped wire exposed part; a non-electrically conductive wire support supporting plural covered wires so as to prevent short-circuits between the stripped wire exposed parts of plural covered wires; a container accommodating portions of plural covered wires supported by the wire support and the stripped wire exposed part; and a thermosetting waterproofing agent 40 filled into the container to immerse at least the stripped wire exposed parts of plural covered wires and cured to immerse the stripped wire exposed part and clearance between plural covered wires.

Abstract: The present invention relates to a waterproofing structure for an insulation-coated electrical wire that includes a tubular protection member and a resin material that is accommodated in the protection member. An exposed conductor section includes a plurality of bare wires bent to double back in a reverse direction in the protection member, the protection member including a tubular section that surrounds the exposed conductor section and the pair of on intermediate ends of the coating tube that are adjacent to both ends of the exposed conductor section; and a closed section that is distanced from the exposed conductor section in the axial direction and closes one end of the tubular section. The resin material is made of a thermosetting resin that is cured, between the protection member and the insulation-coated electrical wire, while closely fitting to the closed section, the exposed conductor section, and the pair of intermediate ends.

Abstract: The present invention relates to a waterproofing structure for an insulation-coated electrical wire that includes a tubular protection member and a resin material that is accommodated in the protection member. An insulation-coated electrical wire passes through the protection member, and the protection member includes a stopper that surrounds one intermediate end of a coating tube that is located on one end side of an exposed conductor section of the insulation-coated electrical wire, and a heat-shrinkable tube that is shrunk to a predetermined shrunk diameter, and closely fits to the stopper on the inner circumference on one end side of the heat-shrinkable tube. The resin material is made of a thermosetting resin that is cured between the protection member and the insulation-coated electrical wire while closely fitting to the stopper, and pair of intermediate ends of the coating tube on both ends of the exposed conductor section.

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: A process for producing 2,6-dimethylnaphthalene by subjecting 2,7-dimethylnaphthalene to an isomerization reaction, wherein the isomerization reaction is carried out by the use of a metallosilicate catalyst that comprises a metallosilicate having a main cavity defined by a ten-oxygen-membered ring, that is in the form of aggregates of fine crystals of the metallosilicate, the external surface area of the aggregate as calculated from t-plot analysis made in the nitrogen adsorption method being 25 m2/g or more, and that has been treated to inactivate acid centers present on the external surfaces of the fine crystals until the rate constant basic value N becomes 0.5 or less.