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公开(公告)号:US20060016643A1
公开(公告)日:2006-01-26
申请号:US11151652
申请日:2005-06-14
IPC分类号: B60T3/00
CPC分类号: B60T3/00
摘要: A wheel chock having a threaded portion at one end of the chock and extending from the chock, a lower surface of the threaded portion is spaced a certain distance from a lower surface of the chock itself, such that a knot formed below the extended portion would not extend beyond a plane defined by the lower surface of the chock. Alternatively, the extended threaded portion may extend to the lower surface of the chock, but the chock contains an internal cavity of sufficient size to house a knot in a line, without the knot extending beyond a plane defined by the lower surface of the chock. A traction layer may be fixed to the lower surface of the chock to provide additional traction or holding power.
摘要翻译: 具有在轴承座的一端具有螺纹部分并从轴承座延伸的轮轴承座,螺纹部分的下表面与轴承座本身的下表面间隔一定距离,使得形成在延伸部分下方的结 不延伸超过由轴承座的下表面限定的平面。 或者,延伸的螺纹部分可以延伸到轴承座的下表面,但是轴承座包含足够尺寸的内部空腔以将结放置在一条线中,而没有结超出由轴承座的下表面限定的平面。 牵引层可以固定到轴承座的下表面以提供额外的牵引力或保持力。
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公开(公告)号:USD587183S1
公开(公告)日:2009-02-24
申请号:US29317593
申请日:2008-05-02
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公开(公告)号:USD267295S
公开(公告)日:1982-12-21
申请号:US135517
申请日:1980-03-31
申请人: David Blumenthal
设计人: David Blumenthal
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