Elastic Clamp Element for Book Block Closing
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Solution Overview
Problem
Book-like documents, particularly those with soft covers, exhibit poor unlocking behavior, where the cover does not close completely after being opened, and this issue worsens with overstretched fold areas, affecting the mechanical stability and security features.
Innovation Solution
A book block with a clamp element made of elastic, superelastic material or shape memory alloy, designed in a U-shaped or C-shaped configuration, which generates restoring forces to close the book block when individual pages are opened, ensuring the book returns to a folded arrangement without deformation, and can be adapted for different page counts by adjusting the design or material thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flexible cover is used to form a softcover book-like document, then the ease of manufacture and comfort are improved, but the opening behavior deteriorates (the cover does not close completely after being opened)
Solution Approach 1:
The clamping element's material properties and geometric parameters are specifically designed to provide the right balance of flexibility and restoring force. By adjusting the thickness, material composition, and cross-section of the clamping element, the restoring force can be optimized to ensure the book block closes properly while maintaining softcover flexibility.
Solution Approach 2:
The clamping element acts as an intermediary component between the book block and the flexible cover. It mediates the interaction by providing the necessary restoring force to close the book block, while allowing the flexible cover to maintain its soft and comfortable characteristics without directly承担着 the closing function.
2Ease of operation
If the spine of the cover is overstretched to allow opening, then the ease of operation is improved, but the mechanical stability deteriorates (poor opening behavior and incomplete closing)
Solution Approach 1:
The clamping element is pre-formed with inherent elastic energy storage capability. Before the book is opened, the clamping element is already positioned to exert a closing force on the book block. This preliminary preparation ensures that when the book is opened, the clamping element can immediately generate the restoring force needed to close the book block, without requiring overstretching of the spine.
Solution Approach 2:
The clamping element introduces dynamic characteristics to the otherwise static book block structure. It allows the book block to dynamically respond to opening and closing actions by generating restoring forces, enabling repeated opening and closing operations without permanent deformation or loss of mechanical stability.
3Stability of the object's composition
If a rigid book cover is used to securely hold the book block, then the mechanical stability is improved, but the ease of manufacture and flexibility are worsened
Solution Approach 1:
The system is segmented into distinct functional components: the flexible cover for comfort and ease of manufacture, the book block for content, and the clamping element for stability. This segmentation allows each component to be optimized independently - the cover remains simple and flexible, while the clamping element provides the necessary holding stability through its elastic properties.
4Ease of operation
If individual data pages are opened in a folded arrangement, then the ease of operation is improved, but the clamping element deformation increases (affecting closing behavior)
Solution Approach 1:
The clamping element's cross-sectional geometry and material properties are specifically designed to minimize deformation during page opening. By optimizing parameters such as thickness, width, and material modulus, the element can accommodate the necessary deformation during use while maintaining sufficient elastic restoring force to close the book block properly.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly improves the unlocking behavior of book-like documents by allowing easy opening of pages while ensuring the book block closes automatically due to the restoring forces, maintaining mechanical stability and security without additional components, and can be integrated into conventional book covers.
Implementation Method 1
The clamping element (32) is designed to be elastically flexible. Opening individual data pages or the endpaper generates restoring forces in the clamping element (32), so that when the data pages (18) or the endpaper (14) are released, the book block (28) is closed again and returned to a folded position (29) due to this restoring force.
Implementation Method 2
A book block with a clamp element made of elastic, superelastic material or shape memory alloy
Implementation Method 3
A book block with a clamp element made of elastic, superelastic material or shape memory alloy
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a book block for a book-like document and to a book-like document with a number of data pages (18) lying one on top of the other, which are connected to one another along a folding edge (34) and along the folding edge (34) form a book block spine (31), or with one side edge are aligned congruent to one another and are connected to one another and form a book block spine (31), wherein a clamp element (32), which reaches around the spine of the book, acts on an outer side of the upper and lower data page (18) or on an outer side of the endsheet (14) that covers the upper and lower data page (18). Such a clamp element is formed in an elastically compliant manner, allowing an individual data page to be opened. The opening of individual data pages or of the endsheet causes restoring forces to be produced in the clamp element, and so, when the data pages or the endsheet are/is let go, this restoring force has the effect that the book block is closed again and transferred into a folded arrangement.