HEATER ADAPTER

PROBLEM TO BE SOLVED: To make it easy to seal an end of an exterior pipe 5, to make it easy and sure to join a heating wire 2 of a sheath heater 1 and a terminal 3, and to make it difficult to cause variation in filling density of an insulating material 7 into an inner part of the exterior pipe 5. SOLUTION: The heater adapter has a heating wire 2 led from an end part of a sheath heater 1 connected with a terminal 3, and an outer side of a joining part of the terminal 3 and the heating wire 2 is covered with an exterior pipe 5. An insulating material 7 are inserted between the exterior pipe 5 and the terminal 3, and a seal member 8 is closed to seal the insulating material 7 in the exterior pipe 5. The seal member 8 uses one made of an elastic material having heat resistance under heating temperature by the sheath heater 1.