Toothed Binding Member Fiber Entanglement Mechanism
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Solution Overview
Problem
Existing binding technologies for bundles of sheets lack efficient methods to create strong and uniform binding without staples, often resulting in weak points and fiber fracture during the binding process.
Innovation Solution
A binding member comprising upper and lower toothed parts with projections and recesses that form irregularities, allowing for engagement with gaps to apply pressure and tangle fibers, enhancing the binding force by allowing sheets to bend and escape into these gaps, thus improving the binding strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional binding methods without staples are used, then the binding process is simple, but the binding strength is weak and fiber fracture occurs
Solution Approach 1:
The toothed parts feature localized projections and recesses that create concentrated pressure points and fiber entanglement zones. The irregularities on the toothed surfaces are strategically designed to penetrate and tangle fibers at specific locations, providing strong binding force precisely where needed while maintaining overall process simplicity
Solution Approach 2:
The projections and recesses on the toothed parts create curved surfaces that facilitate fiber bending and entanglement. The irregular geometric features allow fibers to wrap around and interlock, creating a mechanically interlocked bond that is stronger than flat surface pressing while avoiding the need for staples
2Ease of operation
If uniform pressure is applied during binding, then the binding process is simple, but weak points and fiber fracture occur
Solution Approach 1:
The toothed parts create localized high-pressure zones at the projections and recesses rather than uniform pressure distribution. This allows different regions of the binding interface to experience optimized pressure levels, with peak pressures at the tooth contacts ensuring strong fiber entanglement while avoiding excessive pressure that would cause fiber fracture in other areas
Solution Approach 2:
The irregularities on the toothed parts are pre-designed to create optimal fiber engagement patterns before the binding operation begins. The projections and recesses are shaped in advance to guide fiber deformation and entanglement, ensuring uniform binding quality without requiring complex real-time pressure adjustment during operation
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 provides a stronger binding force by allowing sheets to easily stretch and fibers to tangle, resulting in a more secure and uniform binding without staples, while minimizing the risk of fiber fracture and weak points.
Implementation Method 1
surfaces wide in a direction parallel to the pressing direction of the toothed parts are formed so as to be provided gaps between the upper toothed part and the lower toothed part
Implementation Method 2
upper toothed part having projections and recesses for forming irregularities in a bundle of recording materials; and a lower toothed part having projections and recesses for forming irregularities in the bundle of recording materials
Data Source
AI summary
There is provided a binding member. The binding member includes: an upper toothed part having projections and recesses for forming irregularities in a bundle of recording materials; and a lower toothed part having projections and recesses for forming irregularities in the bundle of recording materials and forming a pair with the upper toothed part. In at least one of the upper toothed part and the lower toothed part, in side surfaces of the recesses of one toothed part, when the upper toothed part and the lower toothed part are engaged, surfaces wide in a direction parallel to the pressing direction of the toothed parts are formed so as to be provided gaps between the upper toothed part and the lower toothed part.