Switch device in steering wheel and steering wheel

A steering wheel of a vehicle, the steering wheel having a front side facing a driver of the vehicle and a back side opposite from the front side, the steering wheel comprising:

• a front switch assembly that is provided on the steering wheel to rotate integrally with the steering wheel, wherein the front switch assembly has a front switch facing the same direction as the front side of the steering wheel;
• a switch marking provided on the front switch;
• a back switch that is provided on the steering wheel to rotate integrally with the steering wheel, wherein the back switch is located at a position closer to the back side of the steering wheel than the front switch assembly;
• a switch marking provided on the back switch, wherein the switch marking faces the same direction as the front side of the steering wheel;
• a front switch light source for illuminating the switch marking on the front switch;
• a back switch light source for illuminating the switch marking on the back switch;
• and
• a circuit board provided in the front switch assembly, wherein the front switch light source and the back switch light source are provided on the circuit board.

A switch device in a steering wheel of a vehicle, wherein the steering wheel has a front side facing a driver of the vehicle and a back side opposite from the front side, the switch device comprising:

• a front switch that is provided on the front side of the steering wheel to rotate integrally with the steering wheel;
• a back switch that is provided on the steering wheel to rotate integrally with the steering wheel, wherein the back switch is located at a position closer to the back side of the steering wheel than the front switch;
• a switch marking provided on the back switch, wherein the switch marking faces the same direction as the front side of the steering wheel;
• and
• a back switch light source that is provided in the steering wheel to rotate integrally with the steering wheel, wherein the back switch light source illuminates the switch marking.