Toilet seat apparatus

A toilet seat apparatus comprising:

• a toilet seat having a seat surface;
• a toilet seat heater that is provided on a back side of said seat surface, and includes a linear heater arranged in a serpentine form and first and second metal foils made of aluminum, said linear heater including a heating wire and an insulating coating on an outer peripheral surface of said heating wire, said first and second metal foils adhering each other with said linear heater sandwiched therebetween;
• a temperature detecting portion that is formed by part of said linear heater of said toilet seat heater, wherein an interval between adjacent portions of said linear heater arranged in the serpentine form in said temperature detecting portion is set to be smaller than an interval between adjacent portions of said linear heater arranged in the serpentine form in a portion other than said temperature detecting portion such that a density of said linear heater in said temperature detecting portion is higher than a density of said linear heater in the portion other than said temperature detecting portion;
• a safety device that is provided on said temperature detecting portion;
• a temperature measurer that measures a temperature of said toilet seat;
• an entrance detecting sensor that detects an entrance of a user;
• and
• a controller that controls supply of power to said linear heater based on a signal transmitted from said temperature measurer and a signal transmitted from said entrance detecting sensor, wherein
• said controller controls the supply of power to said linear heater when said entrance detecting sensor detects the entrance of the user such that said linear heater is supplied with power that is larger than power that has been supplied to said linear heater until said entrance detecting sensor detects the entrance of the user, in order to raise in a short time the temperature of said toilet seat to a set temperature for use by the user, and
• said safety device stops heat generation of said linear heater when the temperature of said toilet seat heater reaches an abnormal temperature.