| 摘要 |
An integral hinge assembly for a plastic container having a base and a lid constructed to permit the lid to be assembled to the base by sliding it axially in position with one motion, wherein the base includes spaced aligned bosses having cylindrical bearing surfaces with one of the bosses being slotted to receive the lid during assembly. The lid has integrally formed therewith a central shank portion flanked by two oppositely directed pintles with the pintle leading during assembling having a smaller diameter than the other pintle to form a shoulder with the shank portion limiting the movement of the pintles into the bosses during assembly. There is also provided, adjacent what would be the trailing pintle during assembly, a frusto-conical portion between the pintles that cams the slotted boss open somewhat as it passes therethrough and after passing therethrough permits the slotted boss to clamp around the larger pintle with the shoulder formed by the frusto-conical portion preventing the disassembly of the lid by withdrawal in the opposite direction.
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