An improved skateboard truck in which a curved support surface is configured to make line contact that sweeps back and forth along a working surface associated with a truck's axle as the axle oscillates through a cycle including left-turn and right-turn orientations. The axle pivots around the locus of line contact during at least a portion of the cycle. From a frame of reference associated with the support surface, the lines of contact are parallel at max-left and max-right turn configurations. Preferred embodiments include structure arranged to resist departure from a zero-turn configuration while permitting micro-turn adjustment. Structure may be included to limit the range of rolling rotation of the deck about its length axis.
申请公布号
US8251384(B1)
申请公布日期
2012.08.28
申请号
US20090590544
申请日期
2009.11.10
申请人
CHRISTENSEN MARK A.;MCHUGH, III GEORGE F.;OTHER PLANET PRODUCTS, INC.