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US5398949A Tangs figure-blade roller skate 失效
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Tangs figure-blade roller skate
摘要:
The figure-blade roller skake costitutes the steering cushion mechanism. Due to the steering cushion mechanism, as the roller blade skate tilts, the wheels are aligned on an curved track. Shifting the body weight right, the steering cushion mechanism will cause the rollers to curve to the right; shifting the body weight left, the steering cushion mechanism will cause the rollers to the curve to the left. The brake wheel uses the clamping force to brake the skate to stop. The brake wheel can serve as both wheel and brake.
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