An educational and instructive device to easily illustrate the components of a three-dimensional body. (Machine-translation by Google Translate, not legally binding)

摘要

An educational and instructive device for easily illustrating the components of a body in three dimensions, and of the type consisting of sheet sections such as cardboard, each of the components being represented by a section of sheet that can be placed on the side, above or under the other sections of sheet, to illustrate the composition of the three-dimensional body, characterized in that said device consists of a sheet, preferably of cardboard, provided with a certain number of parallel folds extending alternately from one side to the other, so that the sheet can be folded and form an element of superposed layers having a width that substantially corresponds to the width of the surface between two folds, each surface having alternate one or more cut-out tabs which are joined to the neighboring surface along the length of the crease line. (Machine-translation by Google Translate, not legally binding)