Flexible Strip Bookbinding for Repeated Flexure

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Solution Overview

Problem

Current bookbinding methods are inflexible, leading to damage when subjected to perpendicular flexure, making them uncomfortable to carry and unsuitable for shipping options requiring flexibility and uniform thickness.

Innovation Solution

Affixing flexible strips to the front and back covers of a book, threading them through spaces in the sheets to bind the sheets and covers together, eliminating the need for metal, glue, or rigid materials, allowing for substantial and repeated flexure without damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional bookbinding methods (saddle stitched, stab stitched, sewn bound, perfect bound, hardcover) are used, then the book structure is stable and sheets are securely bound, but the spine becomes inflexible and damages sheets upon perpendicular flexure

Engineering Contradiction:

Improvebook structure stabilityVSAvoidspine flexibility

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent replaces rigid binding structures with flexible plastic strips that can bend and flex without damaging sheets. The strips are threaded through holes in the sheets and secured to covers, creating a flexible binding system that maintains structural integrity while allowing perpendicular flexure, directly resolving the contradiction between stability and flexibility.

Inventive Principle:

Principle #30Flexible shells and thin films

2Strength

If rigid binding materials (metal wires, stiff threads, rigid coils) are used, then the binding is strong and durable, but the book becomes uncomfortable to carry and cannot meet shipping flexibility requirements

Engineering Contradiction:

Improvebinding strengthVSAvoidcarrying comfort

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The patent changes the physical parameters of the binding material from rigid (metal, stiff thread) to flexible (plastic strips with appropriate thickness and flexibility). This parameter change allows the binding to maintain strength while becoming comfortable to carry and flexible enough to meet shipping requirements, resolving the contradiction between strength and comfort.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If permanent binding methods are used, then sheets are securely held together, but sheets cannot be removed or replaced

Engineering Contradiction:

Improvesheet binding reliabilityVSAvoidsheet removability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates a dynamic binding system where the flexible plastic strips can be removed and reattached. The strips are secured to covers in a manner that allows for removal and replacement of sheets, providing both reliable binding when assembled and adaptability when modification is needed, resolving the contradiction between reliability and versatility.

Inventive Principle:

Principle #15Dynamics

4Ease of manufacture

If traditional binding methods are used, then cost is reduced, but the book cannot withstand repeated perpendicular flexure without damage

Engineering Contradiction:

Improvemanufacturing costVSAvoiddamage resistance

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent uses flexible plastic strips as a low-cost alternative to traditional rigid binding materials. These strips can withstand repeated perpendicular flexure without breaking or damaging sheets, providing both cost-effectiveness and damage resistance, resolving the contradiction between manufacturing cost and reliability.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS10618337B2Flexible and durable bookbinding

Publication Date: 2020.04.14 WOODPECKER LABORATORIES LLC

AI summary

The present invention relates to a flexible and durable bookbinding and to methods for making bound books. More specifically, the present invention relates to books that may withstand substantial and repeated perpendicular flexure along their spine. Among other advantages, these books demonstrate improved resistance to wear and tear and normal usage to remain intact.