Bound Leaf Collection With Alternating Tab Binding Patterns
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Solution Overview
Problem
Existing book bindings often struggle with leaves bulging or resisting when opened, particularly when attempting to lay flat or wrap around 360 degrees, and may lack durability in certain binding techniques.
Innovation Solution
A bound collection of leaves with alternating patterns of tabs along the binding axis, where each tab extends orthogonally from an unbound region to the binding-side edge, and optionally using leaves with reduced cross sections, to minimize cumulative leaf thickness and enhance lay-flat and wrap-around functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional binding techniques are used, then the book structure is simple, but the leaves bulge and resist when opened
Solution Approach 1:
The leaf is divided into multiple tabs extending from the unbound region to the binding-side edge, with alternating patterns between leaves. This segmentation allows each tab to engage with corresponding tabs on adjacent leaves, distributing the binding force and enabling flat opening without excessive bulging.
Solution Approach 2:
The tabs are positioned at specific locations along the binding axis with varying patterns. By localizing binding engagement points at these specific tab positions rather than uniformly across the entire leaf edge, the design achieves controlled binding that prevents bulging while maintaining ease of opening.
2Ease of operation
If cumulative leaf thickness is reduced, then wrap-around resistance decreases, but binding strength may be compromised
Solution Approach 1:
By segmenting the leaf edge into multiple tabs rather than using a single continuous edge, the design maintains binding strength through distributed engagement points while reducing overall cumulative thickness. The alternating tab patterns create interleaved binding zones that prevent excessive bulging during wrap-around.
Solution Approach 2:
The alternating tab patterns of adjacent leaves create a nested arrangement where tabs from one leaf interleave with tabs from neighboring leaves. This nesting effect reduces the cumulative thickness profile along the binding axis, minimizing wrap-around resistance while maintaining binding integrity through the interlocked tab structure.
3Ease of operation
If alternating tab patterns are used, then lay-flat performance improves, but manufacturing complexity increases
Solution Approach 1:
The alternating tab patterns follow a periodic sequence that can be systematically applied across multiple leaves. This periodic arrangement allows for standardized manufacturing processes where tabs are formed at regular intervals with alternating patterns, simplifying the manufacturing complexity through repetition and predictability.
Data Source
AI summary
A bound collection of leaves having a spine and a method of its manufacture are disclosed. Each leaf of a first plurality of leaves of the bound collection includes a first pattern of tabs by which that leaf is bound. The tabs of the first pattern are distributed along a binding axis of that leaf that is parallel to a spine axis of the spine. Each leaf of a second plurality of leaves of the bound collection includes a second pattern of tabs different than the first pattern by which that leaf is bound. The tabs of the second pattern are distributed along a binding axis of that leaf that is parallel to the spine axis. Each tab of the first pattern and second pattern of tabs extends in a direction orthogonal to the binding axis from within an unbound region to a binding-side edge of that leaf.