| 摘要 |
A steering wheel having a rim portion is provided. The rim portion includes a rim metal core, at least one heating element, which extends around the core, and a coating portion, which coats the heating element. The heating element includes a heat generating member for generating heat when electrified, a heat transfer sheet, and a flexible heat insulating sheet. The heat transfer sheet transfers heat of the heat generating member to the coating portion. The heat insulating sheet hinders heat of the heat generating member from being transferred to the core. The heat insulating sheet has first and second surfaces. The heat transfer sheet is laid on the first surface. The heat generating member is located between the first surface and the heat transfer sheet. The heating element is affixed to the core at the second surface, while being flexed to conform to the surface of the core. |
| 主权项 |
1. A steering wheel comprising a rim portion, wherein
the rim portion includes: an annular rim metal core, which forms a framework of the rim portion and has a surface; at least one heating element, which is arranged on a part in the circumference direction of the rim metal core and extends around the part of the rim metal core; and at least one layer of coating portion, which coats the heating element, the heating element includes: a heat generating member, which generates heat when electrified; a heat transfer sheet, which transfers heat of the heat generating member to the coating portion; and a flexible heat insulating sheet, which hinders heat of the heat generating member from being transferred to the rim metal core, the heat insulating sheet has a first sheet surface and a second sheet surface, the heat generating member is arranged on the first sheet surface of the heat insulating sheet, the heat transfer sheet is laid on the heat generating member and exposed surfaces of the first sheet surface of the heat insulating sheet not covered by the heat generating member, the heating element has a flat shape, which is affixed to the rim metal core at the second sheet surface of the heat insulating sheet, while being flexed to conform to the surface of the rim metal core, the rim metal core has a groove, a filling portion, which contacts the heat insulating sheet, fills the groove, and the coating portion and the filling; portion are formed to be coupled to each other by molding plastic that has compatibility with the heat insulating sheet. |
