| 摘要 |
<p>The invention discloses a technology to safely control speed and brake on in-line skates using a ski-like technique, wherein in-line skate wheels can rotate both vertically and at an angle. When angled (or "canted") the wheels contact a friction strip within the wheel frame or a friction disk on the axle. The friction caused by the angled wheels contacting friction strips or friction disks is comparable to the canted "edging friction control" action of skis. The novel means that allows both vertical and angular rotation is a cohesive 2-element plastic hub shown in FIG's 1- C & D. The inner element 2 a has a convex perimeter and fits inside outer element 2' s convex bore, allowing 2 a to rotate freely within outer element 2 . Within inner element 2 a are axle bearings 5 or 9 and axle 8 . External elastomer springs 7 a or internal elastomer spring 7 b keep each wheel in a vertical coasting position. When in the canting (edging) position for control and braking, the self-aligning "springs" ( 7 a or 7 b) force the canted wheels back into the vertical coasting (gliding) position. Since the self-aligning elastomer "springs" can be made soft to hard and be interchangeably arranged, the skates can effectively have models that would satisfy a beginner to a pro.</p> |
