| 摘要 |
The present invention relates to a plastic dolly having a pair of longitudinal side members and a pair of transverse end members coupled together by lap joints to form a frame, preferably a rectangle. The various members are molded in a honeycomb/cellular configuration to conserve product weight and materials. Each of the four corner joints includes a caster fastening hole for receiving a caster fastening bolt which securely fastens the joints together and carries a dolly caster wheel. Additional strength and rigidity is provided to the dolly by two long, preferably metal, reinforcement elements disposed in grooves running longitudinally in the side members and extending into the end members.
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