Abstract: A seat heater according to the present invention includes: a heater that is provided between a seat cushioning material and a seat trim cover and includes a heating wire laid on a base material; a temperature detection unit provided in the vicinity of the heating wire of the heater; and a temperature control unit configured to control a temperature of the heater so that it approaches a target temperature, in which the temperature control unit calculates an estimated environment temperature, which is an estimated value of a temperature around the temperature detection unit, based on a rate of increase of a temperature indicating an amount of change of the temperature detected by the temperature detection unit in a period after an elapse of a predetermined time from a start of heating the heater, and corrects the target temperature so that it becomes lower as the estimated environmental temperature becomes lower.

Abstract: A thermal insulation structure for a vehicle window device is provided with a heater is disposed on a vehicle interior side, a heat-receiving component that is provided between the window and the heater, and that, by receiving heat from the heater, imparts radiant heat to the window, and a thermal insulation layer that is provided at a surface of the heater on an opposite side from the heat-receiving component, wherein the thermal insulation layer is formed by mutually superimposing a plurality of thermal insulation materials, and of the plurality of thermal insulation materials, a thermal insulation material on a closest side to the heater has greater heat resistance than a thermal insulation material on a furthest side from the heater, and the thermal insulation material on the furthest side from the heater has a lower thermal conductivity than the thermal insulation material on the closest side to the heater.

Abstract: A cord-shaped heater 1, having: a conductive wires 5a; an inner-layer covering 7 formed on the outer periphery of the conductive wires 5a; and an outer-layer covering 9 formed on the outer periphery of the inner-layer covering 7, wherein the melting temperature of the inner-layer covering 7 is higher than the melting temperature of the outer-layer covering 9, the inner-layer covering 7 and the outer-layer covering 9 are made of same type of polymer material, and the inner-layer covering 7 and the outer-layer covering 9 are adhered to each other. The cord-shaped heater 1, wherein the conductive wire 5a includes a plurality of conductive wires, and the conductive wires 5a is covered with an insulating film 5b. A sheet-shaped heater, wherein the cord-shaped heater is arranged on a substrate, the substrate has a gap, at least a part of the outer-layer covering is penetrated into the gap of the substrate, and the inner-layer covering is not penetrated into the gap of the substrate.

Abstract: A ventilation mat according to the present invention includes: a ventilation mat body; and an ventilation guide with a fan attachment hole provided at one end thereof, and the other end of the ventilation guide being connected to a connection hole provided on a side surface of the ventilation mat body, in which the ventilation mat body includes: a first base material having an air-permeable three-dimensional structure; an air-permeable cover configured to cover a surface of the first first base material; a side barrier configured to cover an outer periphery of the first base material other than the connection hole, the side barrier having an air permeability lower than that of the air-permeable cover; and an opening surface that is surrounded by the side barrier and exposes the first base material.

Abstract: A ventilation mat according to the present invention is a ventilation mat including: a ventilation mat body including a plurality of tubes coupled to one another in a sheet shape; and a ventilation guide connected to a side surface of the ventilation mat body, in which the ventilation mat body includes: a ventilation part with a slit provided on a side of the plurality of tubes coming into contact with the skin cover so as to be extended across the plurality of tubes, the ventilation part being coupled, with a material of the tube, to a side of the plurality of tubes coming into contact with the sheet cushioning material; and an air flow mixing part that is provided closer to a connection part of the ventilation guide than the ventilation part is, and communicates between the plurality of tubes.

Abstract: The present invention provides a steering wheel and a heater unit used for the steering wheel that does not give discomfort to a user when operating the steering wheel. A heater unit 31 is comprised of a substrate 10 made of a polymeric foam; and a cord-shaped heater 1 arranged on the substrate 10, wherein a thickness of the substrate 10 is thinner at a portion on which the cord-shaped heater 1 is arranged than other area so that the portion is formed along a shape of the cord-shaped heater 1 and the heater unit 31 is approximately flat. A steering wheel, comprised of the above described heater unit; a wheel core material; and a covering material, wherein the heater unit is arranged between the wheel core material and the covering material.

Abstract: A cord-shaped heater 10 has a plurality of conductive wires 5a that are covered with an insulating film 5b. The insulating film 5b includes a silicone resin. A quantity of the silicone resin included in the insulating film 5b is 40 to 80% by a weight ratio. The conductive wires 5a are wound around a core material 3 in a state of being paralleled together. An insulation body layer 7 is formed on an outer periphery of the conductive wires. A part or all of the insulation body layer 7 is formed of a heat-fusing material. A sheet-shaped heater 31 is wherein the cord-shaped heater 10 is arranged on a substrate 11.

Abstract: The present invention provides a steering wheel and a heater unit used for the steering wheel that does not give discomfort to a user when operating the steering wheel. A heater unit 31 is comprised of a substrate 10 made of a polymeric foam; and a cord-shaped heater 1 arranged on the substrate 10, wherein a thickness of the substrate 10 is thinner at a portion on which the cord-shaped heater 1 is arranged than other area so that the portion is formed along a shape of the cord-shaped heater 1 and the heater unit 31 is flat. A steering wheel, comprised of the above described heater unit; a wheel core material; and a covering material, wherein the heater unit is arranged between the wheel core material and the covering material.

Abstract: To provide a seat heater and the manufacturing method thereof, having the stable adherent strength between the heating wire and the base cloth for a long time, with a good seat feeling, at a lower cost. The seat heater is comprising, a base cloth mixed with heat bonding filament, and a heating wire having a heat bonding layer and being placed in a predetermined pattern shape, in order to adhere to and be fixed on the base cloth by heat bonding under heat and pressure. Thus the stable adherent strength between the heating wire and the base cloth may be maintained for a long time, with a good seat feeling, at a lower cost.

Abstract: A heater unit includes a pair of substrates formed from a polymeric foam and a cord-shaped heater sandwiched between the pair of substrates. The thickness of a region of each of the substrates at which the cord-shaped heater is disposed is thinned relative to other regions of the substrates in such a manner as to be shaped to the cord-shaped heater and thus the heater unit forms a flat shape. In the heater unit, the substrates are bonded together by an adhesive layer that is composed only from a pressure-sensitive adhesive.

Abstract: Provided are a warmer equipment which is excellent in quick warming property at a rising time and which can satisfy temperature stability later thereby to improve the comfortableness, and a warmer device for a vehicle seat. The warmer equipment includes a warming member having a heater element, a temperature controlling thermostat, a temperature detecting element for detecting the temperature of the warming member, and a temperature control circuit for controlling the temperature of the warming member with an output coming from the temperature detecting element. The temperature controlling thermostat and the temperature control circuit are connected in parallel.

Abstract: Disclosed is a vehicle seat assembly with built-in heater having a configuration to minimize formation of creases. The vehicle seat assembly of the present invention comprises a seat heater. The seat heater is structured as a unit and comprised of a substrate and a heating wire. The heating wire has a first heater section and a second heater section. In the first heater section, a part of the segments bent on the left side extend leftward across the center. In the second heater section, a part of the segments bent on the right side extend rightward across the center. These segments are overlapped when viewed in the vertical direction. This configuration minimizes formation of creases in the middle area.

Abstract: A heating device for a seat exhibiting excellent durability, reliability, safety and enhanced workability in fixing work to a seat while reducing the cost and weight and ensuring comfortable feeling at seating without causing a strange feeling. The heating device for a seat comprises a heating matter (4) including a base substance (2) and a heating wire (3) arranged on the base substance, a temperature detection element (5) for detecting temperature of the heating matter, and a temperature control circuit (1) for controlling temperature of the heating matter based on the output from the temperature detection element, characterized in that the temperature detection element and the temperature control circuit are arranged at predetermined positions on the base substance. The temperature control circuit is insulation-covered together with a part of lead wires connected to the temperature control circuit.

Abstract: The present invention discloses a heater structure that is composed of a heat generator and a mold. The heat generator is comprised of a PTC heating element having a pair of electrode layers, a first electrode terminal, a second electrode terminal, an insulation case that is a box shape with one side opened. An opening surface of the insulation case faces with the air pump, a protective sheet is placed, and a sum of a thickness of the mold with which the air pump is in contact and a thickness of the protective sheet is thinner than a thickness on an opposite side of the mold in the heater.

Abstract: A polytetrafluoroethylene porous body which is produced by molding a polytetrafluoroethylene mixture, including a polytetrafluoroethylene powder and a pore-forming agent, into a predetermined shape, and subsequently removing the pore-forming agent. The pore-forming agent includes (a) one or more powders selected from a group consisting of dicarboxylic acid powders and benzoic acid powders, and (b) an organic solvent.

Abstract: A polytetrafluoroethylene porous body which is produced by molding a polytetrafluoroethylene mixture, including a polytetrafluoroethylene powder and a pore-forming agent, into a predetermined shape, and subsequently removing the pore-forming agent. The pore-forming agent includes (a) one or more powders selected from a group consisting of dicarboxylic acid powders and benzoic acid powders, and (b) an organic solvent.

Abstract: A light transmitting material having a tubular clad material and an amorphous core material having a refractive index higher than that of the tubular clad material, characterized in that the amorphous core material comprises a polymer derived from monomers comprising a polymer polyol and a polyfunctional compound having reactivity with a hydroxyl group.

Abstract: Provided are a warmer equipment which is excellent in quick warming property at a rising time and which can satisfy temperature stability later thereby to improve the comfortableness, and a warmer device for a vehicle seat. The warmer equipment includes a warming member having a heater element, a temperature controlling thermostat, a temperature detecting element for detecting the temperature of the warming member, and a temperature control circuit for controlling the temperature of the warming member with an output coming from the temperature detecting element. The temperature controlling thermostat and the temperature control circuit are connected in parallel.

Abstract: A cord type thermal fuse, comprising a fuse core produced by winding a conductor meltable at a predetermined temperature on an insulating core member continuous in the length direction, and an insulating cover covering the outer periphery of the fuse core, wherein the conductor can be cut by expanding the insulating core member at a predetermined temperature and/or by contracting the insulating cover at the predetermined temperature.

Abstract: A code type thermal fuse, comprising a fuse core produced by winding a conductor meltable at a predetermined temperature on an insulating core member continuous in the length direction, and an insulating cover covering the outer periphery of the fuse core, wherein the conductor can be cut by expanding the insulating core member at a predetermined temperature and/or by contracting the insulating cover at the predetermined temperature.