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1. 发明授权

US5687977A Steerable toboggan 失效
标题翻译：方向滑雪板
公开(公告)号：US5687977A
公开(公告)日：1997-11-18
申请号：US597465
申请日：1996-02-02
申请人： Bruce Cameron Smith
发明人： Bruce Cameron Smith
IPC分类号： B62B13/12 , B62B13/02
CPC分类号： B62B13/12
摘要： A steerable toboggan for sledding on snow is disclosed which includes a support having a bottom gliding surface which slides directly on the snow, and a pair of runner arms carrying guide ribs which extend forwardly beyond the gliding surface. Each of the guide ribs includes a curved portion which is vertically movable relative to the other between a raised position, with the curved portion raised above the snow, and a lowered position where the curved portion of the guide rib is brought against the snow. The toboggan is steered by selectively lowering the curved portion of one of the guide ribs onto the snow as the toboggan moves. The bulk of the user's weight is supported by the underlying snow, enabling the support to be formed from thinner less expensive materials, without requiring complex manufacturing processes.
摘要翻译：公开了一种用于在雪地上雪橇的可操纵的雪橇，其包括具有在雪上直接滑动的底部滑翔表面的支撑件，以及一对承载引导肋的向前延伸到滑行表面之上的导向肋。每个引导肋包括弯曲部分，该弯曲部分可相对于彼此垂直移动，该凸起部分在凸起位置与弯曲部分在雪上方升高之间，以及下降位置，其中引导肋的弯曲部分抵靠着雪。通过选择性地将滑板中的一个的弯曲部分降低到雪上，从而使雪橇滑行转向。用户体重的大部分由底层的雪支撑，使得支撑由更薄的更便宜的材料形成，而不需要复杂的制造工艺。

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