Claims

1. A vehicle wheel comprising:a steel rim defining a first concave chamber therein; andan outer tire assembled on the steel rim, the outer tire defining a second concave chamber therein, the first concave chamber of the steel rim and the second concave chamber of the outer tire cooperatively defining an inner cavity in the vehicle wheel,wherein a volumetric space of the first concave chamber of the steel rim is larger than that of a conventional concave chamber of a conventional steel rim, and a volumetric space of the second concave chamber of the outer tire is smaller than that of a conventional concave chamber of a conventional outer tire.

2. The vehicle wheel as recited in claim 1, further comprising an inner tube received in the inner cavity of the vehicle wheel.

3. The vehicle wheel as recited in claim 1, wherein the depth of the first concave chamber of the steel rim is increased to thereby cause that the volumetric space of the first concave chamber of the steel rim is larger than that of the conventional concave chamber of the conventional steel rim, and the depth of the second concave chamber of the outer tire is decreased to thereby cause that the volumetric space of the second concave chamber of the outer tire is smaller than that of the conventional concave chamber of the conventional outer tire.

4. The vehicle wheel as recited in claim 3, wherein the volumetric space of the first concave chamber of the steel rim is at least one third of the volumetric space of the inner cavity, and the volumetric space of the second concave chamber of the outer tire is at most one twice of the volumetric space of the inner cavity.

5. The vehicle wheel as recited in claim 4, wherein the volumetric space of the first concave chamber of the steel rim is at least one twice of the volumetric space of the inner cavity, and the volumetric space of the second concave chamber of the outer tire is at most one third of the volumetric space of the inner cavity.

6. The vehicle wheel as recited in claim 1, wherein a stuffing material is filled in the inner cavity, the stuffing material is capable of bearing pressure and occupying a space larger than one third of a volumetric space of the inner cavity of the vehicle wheel, and the stuffing material is selected from a group of consisting of cream material, jelly material and colloid material.

7. A vehicle wheel comprising:a steel rim defining a first concave chamber therein; andan outer tire assembled on the steel rim, the outer tire defining a second concave chamber therein, the first concave chamber of the steel rim and the second concave chamber of the outer tire cooperatively defining an inner cavity in the vehicle wheel,wherein the distance between the circumferential edge of the steel rim and the circumferential edge of the outer tire is at most five centimeters.

8. The vehicle wheel as recited in claim 7, further comprising an inner tube received in the inner cavity of the vehicle wheel.

9. The vehicle wheel as recited in claim 7, wherein a volumetric space of the first concave chamber of the steel rim is larger than that of a conventional concave chamber of a conventional steel rim, a volumetric space of the second concave chamber of the outer tire is smaller than that of a conventional concave chamber of a conventional outer tire, the depth of the first concave chamber of the steel rim is increased to thereby cause that the volumetric space of the first concave chamber of the steel rim is larger than that of the conventional concave chamber of the conventional steel rim, and the depth of the second concave chamber of the outer tire is decreased to thereby cause that the volumetric space of the second concave chamber of the outer tire is smaller than that of the conventional concave chamber of the conventional outer tire.

10. The vehicle wheel as recited in claim 9, wherein the volumetric space of the first concave chamber of the steel rim is at least one third of the volumetric space of the inner cavity, and the volumetric space of the second concave chamber of the outer tire is at most one twice of the volumetric space of the inner cavity.

11. The vehicle wheel as recited in claim 10, wherein the volumetric space of the first concave chamber of the steel rim is at least one twice of the volumetric space of the inner cavity, and the volumetric space of the second concave chamber of the outer tire is at most one third of the volumetric space of the inner cavity.

12. The vehicle wheel as recited in claim 7, wherein a stuffing material is filled in the inner cavity, the stuffing material is capable of bearing pressure and occupying a space larger than one third of a volumetric space of the inner cavity of the vehicle wheel, and the stuffing material is selected from a group of consisting of cream material, jelly material and colloid material.

13. A vehicle wheel comprising:a steel rim defining a first concave chamber therein; andan outer tire assembled on the steel rim, the outer tire defining a second concave chamber therein, the first concave chamber of the steel rim and the second concave chamber of the outer tire cooperatively defining an inner cavity in the vehicle wheel,wherein a diameter of the steel rim is larger than that of a conventional conventional steel rim, and a height of a side edge of the outer tire is smaller than that of a outer tire.

14. The vehicle wheel as recited in claim 13, further comprising an inner tube received in the inner cavity of the vehicle wheel.

15. The vehicle wheel as recited in claim 13, wherein the diameter of the steel rim is increased to thereby cause that the diameter of the steel rim is larger than that of conventional steel rim, and the height of the side edge of the outer tire is decreased to thereby cause that the height of the side edge of the outer tire is smaller than that of the conventional outer tire.

16. The vehicle wheel as recited in claim 13, wherein the volumetric space of the first concave chamber of the steel rim is at least one third of the volumetric space of the inner cavity, and the volumetric space of the second concave chamber of the outer tire is at most one twice of the volumetric space of the inner cavity.

17. The vehicle wheel as recited in claim 16, wherein the volumetric space of the first concave chamber of the steel rim is at least one twice of the volumetric space of the inner cavity, and the volumetric space of the second concave chamber of the outer tire is at most one third of the volumetric space of the inner cavity.

18. The vehicle wheel as recited in claim 13, wherein a stuffing material is filled in the inner cavity, the stuffing material is capable of bearing pressure and occupying a space larger than one third of a volumetric space of the inner cavity of the vehicle wheel, and the stuffing material is selected from a group of consisting of cream material, jelly material and colloid material.

19. The vehicle wheel as recited in claim 18, wherein the stuffing material further comprises various additives, and the additives comprises leak-proof liquid and tire-repairing liquid.

20. The vehicle wheel as recited in claim 13, wherein a plastic membrane or coating is respectively disposed on an inner side of the outer tire and the steel rim.