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公开(公告)号：US10045401B2
公开(公告)日：2018-08-07
申请号：US14820570
申请日：2015-08-07
发明人： Akifumi Wada , Masatsugu Saito , Yuki Naito
摘要： 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.
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公开(公告)号：US11457512B2
公开(公告)日：2022-09-27
申请号：US16624906
申请日：2018-07-20
发明人： Akifumi Wada , Tadao Suzuki
摘要： 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.
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公开(公告)号：US10764967B2
公开(公告)日：2020-09-01
申请号：US15871087
申请日：2018-01-15
发明人： Akifumi Wada , Masatsugu Saito , Yuki Naito
摘要： 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.
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