VARIABLE-VOLUME COLLAPSIBLE HARD CASE BAG

Title:

VARIABLE-VOLUME COLLAPSIBLE HARD CASE BAG

Document Type and Number:

Japanese Patent JP2018130514

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To address such problems that, when a large object is stored in a bag in a folded state, creases are formed thereon and it looks awkward, it is convenient if a bag, when there is no objects therein, is folded up compactly to be carried or stored, in a cloth collapsible bag, the size of luggage is determined by contents, and the corners may be crushed to pose risk of damaging the contents, however, when the objects are securely packed in a cardboard box, it is inconvenience as the bag, when an object is sequentially taken in and out.SOLUTION: The variable-volume collapsible hard case bag includes four surfaces bently provided at respective sides of a rectangular back plate and segmented parallel to the respective sides, where the thickness of the bag perpendicular to the back plate can be set to any dimension by connecting adjacent sides to any segmentation points. Further, surplus parts after the thickness of the bag has been set, are turned round to the front of the bag and assembled together to form a rigid structure, and furthermore, the back plate is stretched/contracted in the vertical direction, the lateral direction, or both directions so as to be stretched/contracted planarly. This configuration can provide the variable-volume collapsible hard case bag whose upper side is doubled, from which contents are easily taken in/out, and that can retain the shape by itself without compressing the objects.SELECTED DRAWING: Figure 1