Toilet seat apparatus

A toilet seat apparatus comprising:

• a toilet seat having a seat surface and including metal material;
• a linear heater provided on a back side of said seat surface of said toilet seat and including an enamel layer that is provided to coat a heating wire and a periphery of said heating wire;
• an insulating layer provided between said toilet seat and said enamel layer;
• first and second metal foils provided on said back side of said toilet seat;
• and
• an adhesive having a characteristic of an adhesive strength of the adhesive becoming stronger at a lower temperature and becoming weaker as the temperature rises, said adhesive bonding said first metal foil and said second metal foil,
• said insulating layer being made of material having lower heat resistance than said enamel layer,
• one side of said first metal foil being bonded to said back side of said toilet seat,
• one side of said second metal foil being bonded to another side of said first metal foil such that said linear heater is sandwiched between said first metal foil and said second metal foil,
• said adhesive is charged into a gap formed between said linear heater and said first and second metal foils, and
• said linear heater, said first metal foil, said second metal foil and said adhesive are configured such that with the adhesive strength of said adhesive in a vicinity of said heater being lowered due to heat generation of said heating wire, said linear heater floats between said first metal foil and said second metal foil within an area in which said adhesive surrounds said linear heater, and the adhesive strength is maintained in an area separated away from said linear heater.