Cooler box

Abstract

The article relating to this design is a cooler box constructed using materials suitable for insulation, such as expanded polystyrene, expanded polypropylene, and expanded urethane. The cooler box consists of a cooler box body, an outer lid, an inner lid, and a divider. The space inside the cooler box body can be divided into left and right sections by inserting the divider along grooves carved into the inside of the cooler box body. The position of the inner lid can be adjusted up and down indefinitely depending on the height of the contents, and the surface area in contact between the contents and the outside air can be reduced when opening and closing the outer lid, thus these components have functional unity for keeping things cool. The two inner lids are of the same shape and have two pairs of oval-shaped indentations for gripping with fingers. The lower part of the inner lid is made of an elastic material and is normally flat, but it can be pressed in and indented when fingers are used to grip it, allowing for a stable grip.

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