Folded Sheet Bookbinding Structure for Simple Page Assembly
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Solution Overview
Problem
Conventional bookbinding methods are cumbersome and require skills, making them difficult for easy performance.
Innovation Solution
A bookbinding structure that involves valley-folding sheets along a valley fold line, forming page surfaces, and using mountain-folded insertion pieces and receiving-portion forming pieces to create insertion receiving portions for easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional bookbinding methods (thread, stapler, glue) are used, then binding strength is achieved, but operation complexity and time consumption increase significantly
Solution Approach 1:
The bookbinding structure is divided into modular components: multiple sheets with valley folds creating page surfaces, insertion pieces with mountain folds, and receiving-portion forming pieces. Each component is independently formed and then assembled together through simple insertion, eliminating the need for complex binding operations while maintaining structural integrity
Solution Approach 2:
The insertion pieces and receiving-portion forming pieces are pre-formed with specific mountain folds and shapes before assembly. This preliminary preparation allows the final binding operation to be as simple as inserting one piece into another, dramatically reducing operation complexity while ensuring proper alignment and secure connection
2Strength
If conventional bookbinding methods are used, then binding strength is achieved, but time consumption increases
Solution Approach 1:
By segmenting the binding process into pre-formed modular components that simply need to be inserted into each other, the time-consuming steps of threading, stapling, or gluing are eliminated. The assembly becomes a rapid insertion process that maintains binding strength without the time penalty of conventional methods
Solution Approach 2:
The mountain-folded insertion pieces and receiving-portion forming pieces are designed to self-align and self-secure when inserted together. This self-service mechanism eliminates the need for additional binding operations, tools, or skilled manipulation, allowing rapid assembly while ensuring secure binding
3Ease of operation
If insertion piece structure is added for easy assembly, then ease of operation improves, but device complexity increases
Solution Approach 1:
The insertion pieces and receiving-portion forming pieces utilize the flexibility of folded paper or thin material structures. The mountain folds create flexible yet structurally defined components that can be easily manipulated and inserted. This approach achieves ease of assembly through simple geometric folding rather than adding complex mechanical fasteners, joints, or binding mechanisms
Solution Approach 2:
Instead of adding complex binding elements to hold sheets together, the invention inverts the approach by creating receiving portions in the sheets themselves and using simple insertion pieces that fit into these pre-formed receptacles. This inversion simplifies the assembly operation while the structural complexity is contained within the pre-formed geometric shapes rather than requiring additional binding hardware
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3(a)~3(b)
AI summary
A bookbinding structure by which bookbinding can be easily performed is provided. A bookbinding structure includes a sheet 10 in which page surfaces P(n), P(n+1) adjacent to each other are formed on an inner side of a valley fold by having the sheet 10 valley-folded along a valley fold line 11. In the bookbinding structure, the sheet 10 includes: an insertion piece 13 that is continuous with one page surface of the page surfaces P(n), P(n+1) adjacent to each other in the sheet 10 via a mountain fold line 12 parallel to the valley fold line 11 and is able to be mountain-folded; and receiving-portion forming pieces 15 each of which is continuous via a mountain fold line 14 on a respective one of two edges, which are orthogonal to the valley fold line 11, of the other page surface P(n+1) of the page surfaces P(n), P(n+1) adjacent to each other in the sheet 10, the mountain fold line 14 being one of mountain fold lines 14 orthogonal to the valley fold line 11, the receiving-portion forming pieces forming an insertion receiving portion 16 into which an insertion piece 13 that is mountain-folded in another sheet 10 disposed to be adjacent to the sheet 10 is insertable by having the receiving-portion forming piece 15 mountain-folded to a back surface side of the other page surface P(n+1).