PURPOSE: To reduce fatigue of driver's hands by moving a support along a fixing groove in a steering wheel, and fixing the support on the outer periphery of the steering wheel to make the hands stable.

CONSTITUTION: A groove 3 for metal fitting 6 is formed in a steering wheel 2 to fit the metal fitting 6 of a support 1 into it and slide the support 1 along the outer periphery of the steering wheel, setting a lever 5 to a groove 7 in the support at the driver's most preferrable hand position. When the driver wants to change the position, he can pull the lever 5 horizontally to release fixing and move to the other position and fix it. It is thus possible to reduce hands' fatigue by fixing the hands on the outside of the steering wheel 2 when hands go upwards and downwards or do not settle due to their fatigue during driving.