| 摘要 |
A handgrip with a built-in heater for a motorcycle in which an FPC heater is integrally embedded in a hollow cylindrical handgrip body made of rubber and exteriorly fitted to a handle pipe of a motorcycle. A heater circuit region of the handgrip body is constituted by a synthetic resin inner piece of a substantially hollow cylindrical shape with a hollow cylindrical or peripheral portion slotted, a plurality of grooves communicating with each other are formed on an inner peripheral surface of the inner piece, a rubber layer for making pressure contact with a pipe, formed integrally with a cladding rubber layer for covering the FPC heater extending on the outer peripheral surface of the inner piece, is filled in the grooves, and the inner piece is split into a plurality of pieces. Hence, the formation of the grooves on the inner peripheral surface of the inner piece is facilitated.
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