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Patent Searching and Data


Title:
HEATER WIRE FOR USE IN SEAT HEATER, AND SEAT HEATER
Document Type and Number:
WIPO Patent Application WO/2017/208577
Kind Code:
A1
Abstract:
[Problem] To provide a heater wire with high bending durability that is for use in a seat heater of an automobile and the like and that reduces a foreign body feeling, and to provide a seat heater. [Solution] In order to solve the abovementioned problem, provided is a heater wire (10) which includes a twisted wire (5) obtained by twisting together one or more fiber threads (1) and four or more heat generating wires (2) having an insulating coating (3b) at a pitch of 6-12 mm inclusive, and which is configured such that an insulating outer cover is not provided at the outer periphery of the twisted wire (5). An outer diameter (D1) of the fiber threads (1) may be four times or more or two times or less a diameter (D2) of the heat generating wires (2). The number of heat generating wires (2) may be greater than the number of fiber threads (1). Two or more types of fiber threads (1a, 1b) having different outer diameters may be included. A second twisted wire may be formed by twisting together a plurality of first twisted wires (11) that are constituted by the fiber threads (1) and the heat generating wires (2).

Inventors:
NAKAYAMA, Takeyasu (300, Oya, Ueda-sh, Nagano 92, 〒3860192, JP)
NAKAJO, Yuichi (300, Oya, Ueda-sh, Nagano 92, 〒3860192, JP)
TANAKA, Daisuke (300, Oya, Ueda-sh, Nagano 92, 〒3860192, JP)
KITAZAWA, Hiroshi (300, Oya, Ueda-sh, Nagano 92, 〒3860192, JP)
KOIKE, Chiaki (300, Oya, Ueda-sh, Nagano 92, 〒3860192, JP)
MIYAHARA, Shohei (300, Oya, Ueda-sh, Nagano 92, 〒3860192, JP)
Application Number:
JP2017/011357
Publication Date:
December 07, 2017
Filing Date:
March 22, 2017
Export Citation:
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Assignee:
TOTOKU ELECTRIC CO., LTD. (8-3 Nishi-Shinbashi 3-chome, Minato-ku Tokyo, 03, 〒1050003, JP)
International Classes:
H05B3/56; H05B3/20
Foreign References:
JPH02132788A1990-05-22
JP2007134341A2007-05-31
EP2797383A12014-10-29
JP2011074538A2011-04-14
JPS57113392U1982-07-13
Attorney, Agent or Firm:
YOSHIMURA, Shunichi (7th Floor, Ichigaya KT Buidling I 7-16, Kudanminami 4-chome, Chiyoda-k, Tokyo 74, 〒1020074, JP)
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