| 摘要 |
A two-part injection mold produces plastic articles formed with hook portions, transversely perforated webs, or both. The plastic article is adapted, for example, to form the framework of a playpen or bed for children, and is capable of being disassembled, after molding, into an outer upper portion and a central base portion to which there may be fixed the upper and lower ends of an outer net, the metal supporting legs and, on top, a sun-shade support. One-half of the mold is fitted with pegs which aid in forming the hook and perforated portions of the article, and further serve to eject the finished article from the open mold.
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