Patent ID: 8567861

Claim:
A seat comprising: a cushion member; a seat heater having a planar base member disposed on the cushion member, a heater wire fixed to the base member, and a temperature control that controls the temperature of the heater wire; and, a skin material that covers both the cushion member and the seat heater, the seat heater being a seat built-in type vehicle seat heater disposed between the cushion member and the skin material covering the cushion member from above, the cushion member including a seat cushion surface portion for a sitting person, a recess formed in a surface located on the side opposite to the seat cushion surface portion, and a backrest surface portion that bears the waist of the sitting person on a vehicle body rear side of the seat cushion surface portion, the base member of the seat heater including a seat cushion surface-side portion disposed on the seat cushion surface portion, a backrest surface-side portion disposed on the backrest surface portion, and a connection surface portion disposed between the seat cushion surface-side portion and the backrest surface-side portion and connecting the seat cushion surface-side portion and the backrest surface-side portion to each other, the components of the base member being formed integrally, the heater wire comprising a seat cushion side heater wire disposed in the seat cushion surface-side portion, an insertion portion heater wire extended from the seat cushion side heater wire, a backrest surface-side heater wire disposed in the backrest surface-side portion, and a connection heater wire disposed in the connection surface portion to connect the seat cushion side heater wire and the backrest surface-side heater wire electrically to each other, at least a portion of the temperature control being connected to the insertion portion heater wire and disposed within the recess of the cushion member, and, the connection surface portion including a transfer suppresser that suppresses transfer of a pulling force imposed on the seat cushion surface-side portion upon shift of a load of the person to the backrest surface-side portion.