Steering wheel

1. A steering wheel, comprising:

a boss configured to be connected to a steering shaft and a steering portion arranged around the boss, wherein

the steering portion has a non-circular portion including a corner portion or an end portion, and the non-circular portion is covered with one or more cover pieces,

the steering portion comprises a rim including a bottom portion and two protruding parts protruding from both sides of the bottom portion, and wherein the one or more cover pieces comprise:

a first cover piece configured to cover a first protruding part of the two protruding parts;

a second cover piece configured to cover a second protruding part of the two protruding parts; and

a third cover piece configured to cover the bottom portion.

2. The steering wheel according to claim 1 , wherein the one or more cover pieces cover a front surface of the steering portion facing the occupant in the non-circular portion, a rear surface of the steering portion positioned on a side opposite the occupant, and an upper surface of the steering portion positioned between the front surface and the rear surface.

3. The steering wheel according to claim 2 ,

wherein the first cover piece covers the front surface and the rear surface; and further comprising a

fourth cover piece is connected to an edge portion of the first cover piece and covers the upper surface.

4. The steering wheel according to claim 2 , wherein the first cover piece covers the front surface and the rear surface, and further comprising a fourth cover piece covers the upper surface.

5. The steering wheel according to claim 4 , wherein at least one of the first cover piece and the second cover piece is divided into a plurality of cover portions.

6. The steering wheel according to claim 3 , wherein

the steering portion includes a rim arranged around the boss and spokes protruding from the rim toward the boss,

the first cover piece covers the front surface facing the occupant and the rear surface positioned on the side opposite the occupant, and

the fourth cover piece is arranged on both the front surface and the rear surface, and covers the end surfaces of the rim extending from the front surface to the rear surface and the surface of the spokes arranged between the front surface and rear surface that extend between the end surface of the rim and the boss.

7. The steering wheel according to claim 6 , wherein the rim and spokes are connected in an L-shape or a T-shape.

8. The steering wheel according to claim 6 , wherein an outer edge of a portion of the fourth cover piece corresponding to the end surface of the rim is formed in a curved shape.

9. The steering wheel according to claim 6 , wherein the fourth cover piece has a rectangular strip shape.

10. The steering wheel according to claim 3 , wherein the steering portion includes a rim arranged around the boss, and the fourth cover piece covers an end portion of a discontinuity point in a circumferential direction of an outer diameter of the rim.

11. The steering wheel according to claim 1 , wherein an edge portion of the one or more cover pieces is connected by stitching.

12. The steering wheel according to claim 1 , wherein the one or more cover pieces are is made of leather or cloth.

13. The steering wheel according to claim 1 , wherein the non-circular portion is positioned on an outer perimeter of the steering wheel.

14. The steering wheel according to claim 1 , wherein the non-circular portion is configured to be gripped by a driver during operation.