Foam Book Cover Binding Layer Design for Safety
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Solution Overview
Problem
Existing foam books pose a choking hazard due to exposed edges that can be grasped and torn, leading to potential safety issues, and require printing for color differentiation on outer surfaces.
Innovation Solution
A foam book design featuring a binding layer that extends across the back cover and partially across the front cover, with a decorative layer that abuts the binding layer, eliminating exposed edges and using differently colored and textured polymer materials to enhance safety and aesthetics without the need for printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single layer of foam forms the outer surfaces of the book, then the book is simple to manufacture, but the outer surfaces cannot provide multiple colors without printing
Solution Approach 1:
The book cover is segmented into multiple foam layers with different colors. The first foam layer provides the base structure, while the second foam layer with a different color is positioned on the outer surface to provide color differentiation without requiring printing processes.
2Strength
If the spine layer overlies the outside surfaces of the covers, then the binding is structurally sound, but exposed edges are created that can be grasped and torn
Solution Approach 1:
The binding layer is extended in the longitudinal dimension to overlap the outer surfaces of the front and back covers. This dimensional extension allows the binding layer to provide structural integrity while its edges are positioned away from the outer surface edges, eliminating exposed edges that could be grasped and torn.
Solution Approach 2:
The binding layer serves as an intermediary element that connects the spine to the covers while extending beyond them. This intermediary structure provides both structural support and a safety feature by eliminating exposed edges at the outer surfaces.
3Device complexity
If the binding layer extends partially across the front cover, then the structure is simplified, but exposed edges remain that create safety hazards
Solution Approach 1:
The binding layer is extended in the longitudinal dimension to overlap the front cover by a predetermined distance. This dimensional extension maintains the simplified binding structure while eliminating exposed edges at the outer surface, as the binding layer edges are now positioned inward from the cover edges.
Data Source
AI summary
There is disclosed a book with a front cover formed by a front base layer and a front decorative layer. The front base layer has a first front face portion, a second front face portion, and a front free edge. The front decorative layer is disposed on the second front face portion. The book has a rear cover formed by a rear base layer and a rear free edge. A binding layer extends across the rear base layer and along the first face portion of the front base layer cover. The binding layer is adhered with the rear base layer and the first face portion so that the front decorative layer extends from the front free edge and across the second front face portion. An edge of the binding layer abuts an edge of the front decorative layer. This arrangement eliminates a free edge between along the front cover of the book. The book includes one or more pages disposed between the front and rear covers. The pages each include respective page base layers and each base layer including a page binding edge. The page binding edge is connected with the binding layer.