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Title: Ridable amusement device
Claims: What is claimed is: 1. A ridable amusement device comprising: an annular frame; mutually independent rotatable main wheels disposed on opposite sides of said frame including axles which are aligned with each other; handles associated respectively with said main wheels for manually driving said main wheels independently of each other; a seat provided with a backrest and disposed in the rear region of said frame; a footrest disposed in the front region of said frame and being positioned in front of said seat with a predetermined space defined therebetween; a swiveled auxiliary wheel including an axle supported in the rear region of said frame; and a friction brake device comprising a brake shoe adapted to rub against a ground surface when said brake device is actuated. 2. A ridable amusement device as set forth in claim 1, wherein said main wheels are disposed on the inner side of said frame. 3. A ridable amusement device as set forth in claim 2, wherein said handles are attached respectively to said main wheels through crank arms and inwardly directed to face each other. 4. A ridable amusement device as set forth in claim 1, wherein the axles of said main wheels are disposed on a diameter of said annular frame. 5. A ridable amusement device as set forth in claim 1, wherein the backrest of said seat is secured directly to said frame and opposite ends of the seat are fixed to a crosspiece bridging said frame. 6. A ridable amusement device as set forth in claim 1, wherein the diameter of said auxiliary wheel is smaller than that of said main wheels. 7. A ridable amusement device as set forth in claim 1, wherein said frame is inclined in the direction from front to rear. 8. A ridable amusement device as set forth in claim 1, wherein said frame is formed of a pipe. 9. A ridable amusement device as set forth in claim 1, wherein said brake device is arranged so that it is capable of maintaining its brake action. 10. A ridable amusement device comprising: an annular frame; mutually independent rotatable main wheels disposed on opposite sides of said frame including axles which are aligned with each other; handles associated respectively with said main wheels for manually driving said main wheels independently of each other; a seat provided with a backrest and disposed in the rear region of said frame; a footrest disposed in the front region of said frame and being positioned in front of said seat with a predetermined space defined therebetween; a swiveled auxiliary wheel including an axle supported in the rear region of said frame; and a hemispherical roof projecting above said frame which covers at least said seat and which includes a longitudinally extending divisional plane which bisects the roof in halves which are pivoted on said frame for opening and closing. 11. A ridable amusement device as set forth in claim 10, wherein said roof is formed of a transparent material. 12. A ridable amusement device as set forth in claim 10, wherein said main wheels are disposed on the inner side of said frame. 13. A ridable amusement device as set forth in claim 12, wherein said handles are attached respectively to said main wheels through crank arms and inwardly directed to face each other. 14. A ridable amusement device as set forth in claim 10, wherein the axles of said main wheels are disposed on a diameter of said annular frame. 15. A ridable amusement device as set forth in claim 10, wherein the backrest of said seat is secured directly to said frame and opposite ends of the seat are fixed to a crosspiece bridging said frame. 16. A ridable amusement device as set forth in claim 10, wherein the diameter of said auxiliary wheel is smaller than that of said main wheels. 17. A ridable amusement device as set forth in claim 10, wherein said frame is inclined in the direction from front to rear. 18. A ridable amusement device as set forth in claim 10, wherein said frame is formed of a pipe. 19. A ridable amusement device as set forth in claim 10, including a brake device. 20. A ridable amusement device as set forth in claim 19, wherein said brake device is a friction brake comprising a brake shoe adapted to rub against a ground surface when said brake device is actuated. 21. A ridable amusement device as set forth in claim 19, wherein said brake device is arranged so that it is capable of maintaining its brake action. 22. A ridable amusement device comprising: an annular frame; mutually independent rotatable main wheels disposed on opposite sides of said frame including axles which are aligned with each other; handles associated respectively with said main wheels for manually driving said main wheels independently of each other; a seat provided with a backrest and disposed in the rear region of said frame; a footrest disposed in the front region of said frame and being positioned in front of said seat with a predetermined space defined therebetween; a swiveled auxiliary wheel including an axle supported in the rear region of said frame; and said predetermined space positioned between said footrest and said seat being an open space which permits access from any direction into the interior of said annular frame. 23. A ridable amusement device as set forth in claim 22, wherein said main wheels are disposed on the inner side of said frame. 24. A ridable amusement device as set forth in claim 23, wherein said handles are attached respectively to said main wheels through crank arms and inwardly directed to face each other. 25. A ridable amusement device as set forth in claim 22, wherein the axles of said main wheels are disposed on a diameter of said annular frame. 26. A ridable amusement device as set forth in claim 22, wherein the backrest of said seat is secured directly to said frame and opposite ends of the seat are fixed to a crosspiece bridging said frame. 27. A ridable amusement device as set forth in claim 22, wherein the diameter of said auxiliary wheel in smaller than that of said main wheels. 28. A ridable amusement device as set forth in claim 22, wherein said frame is inclined in the direction from front to rear. 29. A ridable amusement device as set forth in claim 22, wherein said frame is formed of a pipe. 30. A ridable amusement device as set forth in claim 22, including a brake device. 31. A ridable amusement device as set forth in claim 30, wherein said brake device is a friction brake comprising a brake shoe adapted to rub against a ground surface when said brake device is actuated. 32. A ridable amusement device as set forth in claim 30, wherein said brake device is arranged so that it is capable of maintaining its brake action. 33. A ridable amusement device as set forth in claim 22, including a roof which covers at least said seat. 34. A ridable amusement device as set forth in claim 33, wherein said roof is in the form of a hemisphere projecting above said frame. 35. A ridable amusement device as set forth in claim 34, wherein said roof is bisected by a longitudinally extending divisional plane and the roof halves are pivoted on said frame for opening and closing. 36. A ridable amusement device as set forth in claim 34, wherein said roof is formed of a transparent material. Other info: Inventors: Nagayama, Yutaka (Kishiwada, JA) Application Number: 709517 Filing Date: 1976-07-28 Publication_date: 1978-03-07 Assignee: Nagayama Electronic Industry Co., Ltd. (Kishiwada, JA) Primary Class(es): 280/211 280/242.1 Other Classes: US Patent Ref:
Other Refs: Primary Examiner: Goodman, Philip Assistant Examiner: Siemens, Terrance L. Attorney: Birch, Stewart, Kolasch & Birch |
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