Tape Reel Flange Elastic Modulus Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tape reels fail to effectively prevent tape movement and damage in the width direction when the tape is wound around the reel, as the distance between flanges does not adequately restrict the tape's movement and the flanges' elastic moduli are not optimized to absorb stress without deforming the tape.
Innovation Solution
A tape reel design featuring a cylindrical portion with a first flange and a second flange, where the distance between the flanges narrows radially outward, with the first flange having a smaller bending elastic modulus than the second flange and both having moduli less than the tape, ensuring the flanges can bend without damaging the tape and securely holding it in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the distance between flanges is reduced to prevent tape movement, then the tape is restrained from moving in width direction, but the flanges may deform and damage the tape
Solution Approach 1:
The patent applies different bending elastic moduli to different flanges (first flange has smaller modulus than second flange) to create localized structural characteristics. This allows each flange to have optimized properties for its specific functional requirements while maintaining overall structural integrity and preventing tape damage.
Solution Approach 2:
The patent changes the bending elastic modulus parameter of the flanges, specifically making the first flange's bending elastic modulus smaller than the second flange's. This parameter optimization allows the flanges to deform controllably to prevent tape movement while avoiding tape damage through controlled flexibility.
2Strength
If the first flange has smaller bending elastic modulus to absorb stress, then the tape is protected from damage, but the flange structure becomes more flexible and less stable
Solution Approach 1:
The patent creates localized quality differences by assigning different bending elastic moduli to different flanges. The first flange has smaller modulus for stress absorption and tape protection, while the second flange has larger modulus for structural stability, achieving both protection and stability through differentiated local properties.
Solution Approach 2:
The patent effectively creates a composite structure by combining flanges with different bending elastic moduli. This composite approach allows the system to exhibit both the flexibility needed for stress absorption and the rigidity needed for structural stability, protecting the tape while maintaining overall stability.
3Strength
If the flanges are designed with different bending elastic moduli, then the tape is protected from damage, but the manufacturing process becomes more complex
Solution Approach 1:
The patent implements local quality differentiation in the flanges through different bending elastic moduli. This can be achieved through material selection, thickness variation, or structural design differences during manufacturing, allowing optimized tape protection while using standard manufacturing techniques for creating differentiated components.
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 design effectively restrains the tape from moving in the width direction and prevents damage by allowing the flanges to deform instead of the tape, while maintaining a compact structure with fewer components and easier manufacturing.
Implementation Method 1
a bending elastic modulus of the first flange is smaller than a bending elastic modulus of the second flange... allowing the flanges to deform instead of the tape
Data Source
AI summary
A tape is prevented from moving in a width direction and the tape is prevented from being damaged in a state in which the tape is wound around a tape reel. There is provided a tape reel including: a cylindrical portion around which a tape is wound; a first flange annularly projecting toward an outer side in a radial direction of the cylindrical portion from the cylindrical portion; and a second flange separated from the first flange in an axial direction of the cylindrical portion and annularly projecting toward the outer side in the radial direction from the cylindrical portion, in which a distance between the first flange and the second flange becomes narrower while extending toward the outer side in the radial direction, and a bending elastic modulus of the first flange is smaller than a bending elastic modulus of the second flange.