Claims

1. A riding device comprising:a base,a carrier supported on said base and movable relative to said base,a rider support supported on said carrier and moved in concert with each other for supporting a rider, andmeans for moving said carrier and said rider support relative to said base in an elliptical and reciprocating action.

2. The riding device as claimed in claim 1, wherein said base includes at least one crank rotatably attached to said base, and said carrier includes a curved member engaged with said at least one crank for allowing said curved member of said carrier to be forced to move in the elliptical and reciprocating action by said at least one crank.

3. The riding device as claimed in claim 2, wherein said base includes a roller rotatably attached to said at least one crank and engaged with said curved member of said carrier.

4. The riding device as claimed in claim 3, wherein said carrier includes a stop member attached to said curved member for engaging with said roller and for limiting said carrier to move relative to said roller of said at least one crank.

5. The riding device as claimed in claim 3, wherein said carrier includes a retaining member attached to said carrier and parallel to said curved member of said carrier for confining said roller between said retaining member and said curved member of said carrier.

6. The riding device as claimed in claim 2, wherein said moving means includes a driving device coupled to said at least one crank for rotating said at least one crank relative to said base.

7. The riding device as claimed in claim 6, wherein said driving device includes a fly wheel rotatably attached to said base and coupled to said at least one crank and rotated in concert with said at least one crank, a pulley rotatably attached to said base and coupled to said fly wheel, and a motor coupled to said pulley for rotating said pulley and said fly wheel and said at least one crank relative to said base.

8. The riding device as claimed in claim 1, wherein said carrier includes an end portion movable forwardly and rearwardly relative to said base in a reciprocating action.

9. The riding device as claimed in claim 8, wherein said end portion of said carrier is pivotally coupled to said base with a link.

10. The riding device as claimed in claim 9, wherein said base includes a column extended therefrom, and said link is dependent downwardly from said column of said base and pivotally coupled to said end portion of said carrier with a pivot pin.

11. The riding device as claimed in claim 1, wherein said rider support includes a post slidably engaged with said carrier and movable up and down relative to said carrier.

12. The riding device as claimed in claim 11, wherein said carrier includes a housing disposed on said carrier for slidably receiving said post.

13. The riding device as claimed in claim 11, wherein said rider support includes a frame pivotally supported on said post with a pivot rod, and a saddle disposed on said frame.

14. The riding device as claimed in claim 13, wherein said post includes a beam disposed on said post, a hub disposed on said beam and pivotally coupled to said frame with said pivot rod.

15. The riding device as claimed in claim 14, wherein said rider support includes at least one spring member engaged between said beam and said frame for cushioning said frame and said saddle.

16. The riding device as claimed in claim 15, wherein said rider support includes a fastener slidably engaged through said beam and said at least one spring member and engaged with said frame for limiting said frame to tilt relative to said beam and said post.

17. The riding device as claimed in claim 13, wherein said rider support includes an arm attached to said frame for adjustably attaching at least one stirrup to said frame.

18. The riding device as claimed in claim 1, wherein said rider support includes a tube, and said carrier includes a threaded member rotatably attached to said carrier and engaged with said tube for adjusting said tube of said rider support up and down relative to said carrier.

19. The riding device as claimed in claim 18, wherein said carrier includes a motor coupled to said threaded member for rotating said threaded member relative to said carrier.