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Regular triangular pyramid and regular rectangular pyramid combined solid figure

A technology of regular triangular pyramids and regular quadrangular pyramids, which is applied in the field of combined three-dimensional shapes, can solve the problems of rare three-dimensional shapes, and achieve the effect of ingenious conception, reasonable folding rules, and strange and beautiful shapes.

Inactive Publication Date: 2014-08-20
李平
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the known combined three-dimensional shape or the combination of all regular triangular pyramids, or the combination of all regular quadrangular pyramids, the three-dimensional shape of regular triangular pyramids and regular quadrangular pyramids is rare

Method used

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  • Regular triangular pyramid and regular rectangular pyramid combined solid figure
  • Regular triangular pyramid and regular rectangular pyramid combined solid figure
  • Regular triangular pyramid and regular rectangular pyramid combined solid figure

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Embodiment Construction

[0029] The three-dimensional shape of the combination of regular triangular pyramid and regular quadrangular pyramid is composed of six identical parts, Part 1, Part 2...Part 6, and a dotted line is used to indicate the positive folding line of the front half, that is, when folding, the front side of the paper and the front side are attached; A solid line plus a circle indicates the reverse folding line of the reverse side, that is, when folding, the reverse side of the paper is attached to the reverse side; a solid line plus a dot indicates the indicator line; an arrow line indicates the indicator line of the insertion direction, and the dotted part of the arrow line indicates the inserted component. The solid line part of the arrow line represents the uninserted part;

[0030] Take a rectangular paper whose length, width and width are 2:1, and make a longitudinal indicator line connecting the midpoints of the upper and lower sides of the wide paper, and divide the rectangular...

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Abstract

The invention discloses a regular triangular pyramid and regular rectangular pyramid combined solid figure and relates to a solid figure making method. The regular triangular pyramid and regular rectangular pyramid combined solid figure is obtained through insertion and combination of six identical parts. The solid figure making method comprises the steps that a piece of rectangular paper is folded into a pentagon, wherein the proportion of length to width of the paper is 2:1; a left right triangle serves as an inserting part; folding is conducted according to the right broken line of the connecting straight line of the front part and back part of the pentagon, and then a middle folded interlayer-shaped small isosceles triangle is obtained; two large isosceles triangles of the part are pulled to enable the folded portion of the middle folded interlayer-shaped small isosceles triangle to be unfolded into a regular rectangular pyramid; one part is obtained; the insertion portion of the first part is inserted into an interlayer opening of the second part, the second part is inserted into the third part, and the third part is inserted into the first part to form a regular triangular pyramid; insertion is conducted in the same way till the regular triangular pyramid and regular rectangular pyramid combined solid figure containing four regular triangular pyramids and six regular rectangular pyramids is obtained through combination and insertion of the six parts. The concept is ingenious, the design is simple, folding is conducted regularly and reasonably, combination and insertion are easy, operation is easy and convenient, and the shape is distinct and attractive.

Description

technical field [0001] The invention relates to a method for making a three-dimensional shape, in particular to a method for making a combined three-dimensional shape. Background technique [0002] At present, the known combined three-dimensional shapes are all regular triangular pyramids, or all regular quadrangular pyramids, and the common combination of regular triangular pyramids and regular quadrangular pyramids is rare. Contents of the invention [0003] In order to overcome the existing combination of three-dimensional shape or the combination of all regular triangular pyramids, or the combination of all regular quadrangular pyramids, the common combination of regular triangular pyramids and regular quadrangular pyramids is rare. A method for making a three-dimensional shape composed of pyramids. [0004] The technical scheme adopted by the present invention to solve its technical problems is: the three-dimensional shape of the regular triangular pyramid and the re...

Claims

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Application Information

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IPC IPC(8): B65D5/32
CPCB31D5/0086
Inventor 李平
Owner 李平
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