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Title:
Land skis
Abstract:
A land ski has an elongated support simulating a conventional snow ski and having an upper surface carrying a conventional ski-binding, as well as an opposite lower surface and front and rear ends, the elongated support having a longitudinal central axis situated in a substantially upright plane during use of the land ski. Only three wheels are situated beneath the lower surface of the elongated support while being connected thereto by three connecting structures, the three wheels including front and rear wheels as well as an intermediate wheel. The rear wheel is situated closer to the rear end of the support than a ski shoe which is held on the upper surface of the support by the ski binding, while the intermediate wheel is situated beneath a part of the support which is situated beneath a ski-shoe held on the support by the ski binding. These intermediate and rear wheels are connected to the support only for rotary movement about their central substantially horizontal axes which extend transversely with respect to the support while being normal to the above upright plane, the latter passing midway through the intermediate and rear wheels so that the latter are symmetrical with respect to this plane. The front wheel is situated at a substantial distance forwardly of the intermediate wheel and while being substantially similar thereto is connected to the support not only for rotary movement about its substantially horizontal axis but also for swivelling movement about an upright axis situated in the above upright plane which also extends midway through the front wheel during normal forward straight travel of the support.
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Inventors:
Urisaka, Yukihiro (Brooklyn, NY, US)
Application Number:
868301
Filing Date: 1978-01-10 Publication_date: 1979-01-16 Assignee:
Primary Class(es):
280/842
280/7.13, 280/11.231, 280/11.27
Other Classes:
US Patent Ref:
| 214563 | Apr, 1879 | Harwood | 280/7. | | 988533 | Apr, 1911 | Zverina | 280/11. | | 1778850 | Oct, 1930 | Duisenberg | 280/11. | | 2048916 | Jul, 1936 | Bentzlin | 280/11. | | 2253012 | Aug, 1941 | Benner et al. | 280/11. | | 2664294 | Dec, 1953 | Kleinman | 280/11. | | 2868553 | Jan, 1959 | Rieckman | 280/7. | | 3512796 | May, 1970 | Mangus | 280/11. | | 3722900 | Mar, 1973 | Dickert | 280/11. | | 3827706 | Aug, 1974 | Milliman | 280/11. |
Other Refs:
363083| Sep, 1938 | IT | | 443881Jan, 1936 | GB | | | | | | | |
Primary Examiner:
Peters, Jr., Joseph F.
Assistant Examiner:
Smith, Milton L.
Attorney:
Steinberg & Blake
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