초록 ▼

A box shaped container having reinforcing ribs on its bottom has strips or a bottom plate formed unitarily with the container during the injection molding thereof and swingable about a film hinge on other ligature over the ribbed structure where it can be secured in place, thereby providing a riding

A box shaped container having reinforcing ribs on its bottom has strips or a bottom plate formed unitarily with the container during the injection molding thereof and swingable about a film hinge on other ligature over the ribbed structure where it can be secured in place, thereby providing a riding rim and reinforcing the bottom.

대표청구항 ▼

1. A box-shaped container comprising a bottom formed of a synthetic resin material and having downwardly projecting stiffening ribs, and strips connected to said bottom by bendable ligatures and adapted to cover said ribs at least along part of a perimeter of the bottom, thereby forming a riding rim

1. A box-shaped container comprising a bottom formed of a synthetic resin material and having downwardly projecting stiffening ribs, and strips connected to said bottom by bendable ligatures and adapted to cover said ribs at least along part of a perimeter of the bottom, thereby forming a riding rim along said bottom.