Yazaki Corporation

Keigo Sugimura

Takeshi Kamata

Kiyoshi Yagi

Shigeharu Suzuki

Makoto Katsumata

Sei Saito

Moriatsu Taniguchi

Hitoshi Ushijima

Kenji Kinezuka

Atsushi Hoshino

Tekeshi Kamata

There is provided an electric wirecomprising an electrically-conductive conductor portion and an insulating cover portioncovering the conductor portion. A colored markeris provided on an end portion of the cover portion. The colored markerindicates that the electric wire is a manually-incorporated wire. A circuit identifieris provided on an intermediate portion of the cover portion. The circuit identifieris made by printing or provided in the form of a mark and indicative of a connection destination of the electric wire. The colored marker in the end portion is made by an ink inferior to that of the circuit identifier on the intermediate portion in at least one property selected from among adhesiveness, weatherability, heat resistance, and chemical resistance.

Wiring harness and manufacturing method thereof

The present invention provides a marking ink for a covered electrical conductor utilized for a wire harness of a motor vehicle. The marking ink is printed on the covered conductor formed with polyolefin such as polyethylene and provides a high adherence (coloring), high wear resistance, high productivity, fast drying, and moderate spreading. The marking ink for the covered electrical conductor contains an acrylate resin with molecular weight of 10,500-93,000.

Marking ink for covered electrical conductor

The present invention is to provide a coloring ink for an electrical wire to prevent a color irregularity. A coloring ink is ejected to an outer surface of an electrical wire with a certain amount of the ink to form a mark. The coloring ink contains 100 parts by weight of an ink material, which contains a solvent, an acrylic resin, and a coloring material, and 5-15 parts by weight of an aqueous PVA solution. A concentration of the aqueous PVA solution is 10-15 %.

Coloring ink for electrical wire

An electric wire whose outer surface has a portion to be colored as required is manufactured by forming a plurality of recesses on the portion of the outer surface of the electric wire, which has a core wire and an insulating jacket that covers an entire periphery of the core wire, and then applying a coloring material to the portion of the outer surface of the electric wire. The recesses may be provided by blowing abrasive grains against the portion or by pricking the portion with one or more needles.

Method for manufacturing a colored electric wire

An object of the present invention is to provide an apparatus and a method for injecting assuredly a given amount of a coloring agent to an outer surface of an electric wire and coloring it. An apparatus for coloring an electric wireincludes coloring nozzles. The coloring nozzleseach has a solenoid valveto inject or stop injection of a coloring agent to an outer surfaceof an electric wire by opening or closing the solenoid valve. A spike voltage is applied to a coilof the solenoid valvewhen the coloring agent is injected. The spike voltage is a voltage applied to the coilwhich is necessary to open the solenoid valve. The spike voltage is applied to the coilto open the solenoid valveand stopped after a given period of time.

Apparatus for coloring electric wire and method thereof

A wiring harnessincludes: an electric wire; and a connector. The electric wireincludes: a conductive core wire; and an insulating coverfor covering the core wire. The connectoris attached to an endof the electric wire, and receives the endof the electric wire. A first markerand a second markerare formed on an outer surfaceof the coverof the electric wire. The first markeris formed by coloring a part of the outer surfaceof the coverof the electric wirereceived in the connectorin a color A. The second markeris formed by coloring a part of the outer surfaceof the coverof the electric wireexposed to an outside of the connector

Wiring harness

A method and device for automatically marking an article are provided, by which the deterioration in the yield can be prevented from occurring and a color of a mark to be formed on the article can be easily changed. A devicefor automatically marking an electric wire as a device for automatically marking an article marks an outer surfaceof an electric wire. The deviceincludes first and second spouting means, encoderand control device. The first spouting meansspouts a specific amount of a first coloring agent toward the outer surfaceof the electric wire. The second spouting meansspouts a specific amount of a second coloring agent toward the outer surfaceof the electric wire. The encoderdetects a transfer speed of the electric wirewhich is transferred in a direction of arrow K. The control devicemakes the first and second spouting meansspout the coloring agent according to a pattern predetermined in advance in response to the transfer speed of the wiredetected by the encoder

Method of automatically marking article and automatic marking device

A coloring apparatus for coloring an electric wire colors the wire spouts a liquid coloring agent, including a coloring material and a solvent, toward an outer surface of the wire with a specific amount thereof at a time. The coloring apparatus includes a coloring agent supply source for receiving the coloring agent, a coloring nozzle and a heater. The coloring nozzle spouts the coloring agent of the coloring agent supply source. The heater includes a heating bath and a hot air inlet. The heating bath receives the coloring nozzle. The heating bath allows the coloring nozzle to spout the coloring agent. The hot air inlet supplies hot air into the heating bath to heat the coloring agent supply source. The heater heats the coloring agent to a range lower than a boiling point of the solvent by the hot air inlet supplying the hot air into the heating bath.

Method and apparatus for coloring electric wire

A coloring apparatusincludes a coloring nozzlefor spouting a coloring material, a signal generator, and a controller. The coloring nozzleincludes an electromagnetic valve. The signal generatoroutputs signals for spouting the coloring material from the coloring nozzleto both a CPUof the controllerand a driving circuit. The CPUoutputs a signal for keeping the electromagnetic valveopen to the driving circuitwhen a frequency of the signals from the signal generatoris higher than a specific frequency. When at least one of the signals from the CPUand the signal generatoris inputted, the driving circuitapplies a spike voltage A and then applies a hold voltage B to a coil. While at least one of the signals from the CPUand the signal generatoris inputted, the driving circuitapplies a spike voltage A and then continuously applies a hold voltage B to a coil

Driving method of electromagnetic valve, electromagnetic valve driving unit and apparatus for coloring electric wire

An electrical cable coating method provides a coating layer on an outer surface of an electrical cable which is moving along a predetermined direction. The method involves utilizing a coating liquid jet unit to jet a given amount of a coating liquid at regular intervals to provide a coating layer on the outer surface of the electrical cable, utilizing a storage device to store a pattern for depositing the coating liquid on the outer surface of the electrical cable, utilizing a detection device to determine the moving speed of the electrical cable, and utilizing a control unit to control the coating liquid jet unit to jet a coating liquid to deposit the coating liquid on the outer surface to define the pattern based on the electrical cable moving speed.

Method for coating electrical cable

An object of the present invention is to provide a method and an apparatus for marking an electric wire at a low cost. An apparatusfor marking an electric wire forms a band markon a part of an outer faceof the electric wire. The band markis formed along the entire circumference of the part of the outer faceof the electric wire. The marking apparatustightens the electric wirein a state where a tensile force is applied in a longitudinal direction. The marking apparatusincludes a nozzlefor injecting coloring agent toward an uppermost positionof the outer faceof the electric wire. The nozzlehas an open endwhich is opposed to the electric wireand capable of passing the coloring agent. A straight line L extending between a center Cof the open endand a center Cof the electric wirelies along a vertical direction.

Method and apparatus for marking electric wire

A method and a system of manufacturing electric wires by ordering, possible to save the cost and materials, is provided. A system includes an order-receiving section, a manufacturing section and a coloring/cutting section. The order-receiving section receives orders of electric wires, and outputs a first datum of amount of electric wires DT, informing a length of a monochromatic electric wire, and outputs a second datum of amount of electric wires DT, informing lengths for respective colors of electric wires. The manufacturing section manufactures a monochromatic electric wire according to the first datum DTand conveys the electric wire to the coloring/cutting section. The coloring/cutting section colors and cuts the electric wire according to the second datum DT

Method for order receipt production of electric wire and its order receipt production system

Covered wires easily distinguished from each other on a low cost and a method of distinguishing the covered wires are provided. The first covered wire () has a core () and a cover portion (). An outer surface () of the cover portion () is unicolor (P). The first mark () and the second mark () are disposed with a gap on the outer surface () along lengthwise of the first covered wire (). The first mark () is colored with the first color (R). The second mark () is colored with the first color (G). The first covered wires () can be distinguished by properly selecting the first color (R) and the second color (G).

Cable and cable identificating method

The present invention provides electrical cables that can be surely discriminated from one another, even when only a part of an outer surface of each cable is exposed. An electrical cablehas an electrically conductive coreand a sheathing layercovering the core. The sheathing layerhas an outer surfacewith a mono-color. On the outer surface, a first markand a second markare provided. At an endof the cable, the first markis provided on a first outer surfacewhile the second markis provided on a second outer surfacepositioned oppositely to the first surfaceof the sheathing layer. On the first outer surface, a plurality of the first and second marksare provided to be alternately positioned in a longitudinal direction of the cable. The first markhas a first color R while the second markhas a second color G different from the first color R. Desirable variation in hue of the first and second colors R, G allows discrimination of the cablesfrom each other.

Electric wire

This invention intends to provide a method and apparatus for manufacturing an electric wire, capable of easily changing a color applied to the electric wire. The electric wire manufacturing apparatus intends to manufacture an electric wire composed of a core and a cladding. In step S, the core is supplied from a supply unit. In step S, in an extrusion cladding unit, the outer periphery of the core is coated with non-color synthetic resin by extrusion cladding to form the cladding. In step S, the outer surface of the cladding is colored by a coloring unit. The coloring unit includes a plurality of sprayersand. In step S, the sprayersandare exchanged to operate as necessary. In step S, in a take-up unit, the electric wire is cut into segments each having a desired length, which are wound around a drum.

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Shizuoka, Japan

Keigo Sugimura