Loop With Protuberances Preventing Strap Deformation
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Solution Overview
Problem
Conventional loops used in orthopaedic straps and belts cause deformation and bunching due to smooth surfaces, leading to inefficiencies in fixing and requiring continuous adjustments.
Innovation Solution
A loop with an oblong ring shape and ring-shaped protuberances along its sides to prevent deformation by maintaining tension and preventing macro deformations of the strap or belt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a smooth loop surface is used, then the strap can move freely through the loop, but the strap bunches up and deforms causing fixing inefficiency
Solution Approach 1:
The loop surface is equipped with protuberances at specific locations to create localized friction zones. These protuberances are strategically positioned to grip the strap at multiple points along its length, preventing bunching while allowing controlled movement. This local modification of surface properties resolves the contradiction by providing both movement capability and deformation prevention.
2Device complexity
If a smooth loop surface is used, then the loop design remains simple, but the strap requires continuous adjustment to prevent jamming and deformation
Solution Approach 1:
The protuberances on the loop surface automatically perform the function of preventing strap deformation and jamming without requiring user intervention. The mechanical interaction between the protuberances and strap creates self-regulating friction that maintains proper strap distribution, eliminating the need for continuous manual adjustments and reducing time loss.
3Reliability
If protuberances are added to the loop surface, then the strap remains spread and stable, but the manufacturing complexity increases
Solution Approach 1:
The protuberances are designed with specific geometric parameters (height, spacing, cross-sectional shape) that can be directly incorporated into the loop manufacturing process. By optimizing these parameters, the loop can be produced using standard molding or extrusion techniques, maintaining ease of manufacture while achieving the desired strap stability and prevention of bunching.
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 loop ensures the strap remains constantly spread and stable, enhancing fixing efficiency and reducing the need for frequent adjustments.
Implementation Method 1
The surface protuberances or knurling along the sides of the loop prevent the strap passing through the loop from deforming and thereby modifying the fixing conditions. The utility of this feature is linked to the fact that the surface knurling deforms the strap locally where it passes through the loop so that it is under tension and cannot undergo macro deformations.
Data Source
Figure 1~2
Figure 3
AI summary
A loop for straps, belts, laces or similar comprising a body (10) made from a substantially plastic, metallic or similar material, with sides having a cylindrical, elliptical or similar cross-section; the long sides (11, 12) have a plurality of knurlings or protuberances (16) designed to hold the strap in position and prevent it from slipping sideways.