| 摘要 |
A step stool nestable for stacking is formed vertically tapered with the smaller end closed to form a horizontal stepping surface. The interior of the shell has attachment surfaces faces upon which the casters are attached for use. Initially the casters are mounted on the undersurface of the closed end to permit stacking of the stools for bulk transport or shipment in quantities. Upon separating the stools in the stack, the user removes the platform and casters from the undersurface of the closed end and attaches them to attachment surfaces in the shell. In the disclosed embodiment a platform member is attached to the shell and the casters mounted on the platform member. In the disclosed embodiment, the casters and platform member are enclosed in a container and releasably secured to the undersurface of the closed end of the shell for stacking.
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