Invention Grant
US08573341B2 Wheelchair suspension 失效
轮椅悬挂

Wheelchair suspension
Abstract:
The present invention provides a suspension for a conveyance that is capable of traversing obstacles and rough terrain. The suspension includes a frame, a pivot arm, a front caster, a drive assembly and a rear caster. The pivot arm and the drive assembly are coupled and decoupled based on movement of the drive assembly.
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