| 主权项 |
1. A steering wheel comprising an operation gripping portion,
wherein the gripping portion comprises:
a gripping portion main body which is provided in a shape having a longitudinal direction along at least a part of an arc; anda covering portion including: a covering portion main body and a heating portion;the covering portion main body which is provided in a belt shape having a longitudinal direction along the longitudinal direction of the gripping portion main body, which is wound at the periphery of the gripping portion main body, and in which lateral side parts in the longitudinal direction are jointed at a position on an inner edge side of the gripping portion main body to thereby cover the gripping portion main body; andthe heating portion having a heater wire which is disposed on the gripping portion main body's side of the covering portion main body, and which is heated by electric power conduction, the heating portion being configured to warm the gripping portion by heating of the heater wire, wherein the heating portion has a plurality of turned portions which are formed by the heater wire, and which are alternately turned up in the longitudinal direction of the gripping portion main body, in a direction crossing the longitudinal direction of the covering portion main body and wherein the turned portion comprises:
a plurality of central turned portions which are positioned on an outer circumferential side of the arc of the gripping portion main body, which are provided in the direction crossing the longitudinal direction of the gripping portion main body, and which are disposed so as to be displaced from each other in the longitudinal direction of the gripping portion main body; anda turned portion of the inner circumferential side which is positioned on the arc of the gripping portion main body, and which is smaller than the dimension of the longitudinal direction of the gripping portion main body a central turned portions. |
