Shoe Interior Sensor Using Injected Elastic Material
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Solution Overview
Problem
Current technologies fail to accurately measure the dimensions of shoe interiors, leading to inaccuracies in modeling and database storage, especially in mass-produced and customized shoes, due to difficulties in precisely controlling laser beams for measurement.
Innovation Solution
An apparatus comprising a sensor that receives a material injected into the shoe, senses physical changes in the surface, and a processor that determines the final data computation timing based on these changes to generate accurate information about the shoe interior, using flexible or fiber materials to sense shape and force changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser beam is used to measure the dimensions of the shoe interior, then measurement can be performed, but precise control of the laser beam is difficult and measurement errors are very large
Solution Approach 1:
The patent replaces the optical measurement system (laser beam) with a material injection system that uses physical expansion of elastic material to conform to the shoe interior surface. This substitution eliminates the difficulty of precise laser control while achieving accurate dimensional measurement through the material's ability to naturally adapt to the measured surface geometry.
Solution Approach 2:
The patent employs an elastic material that behaves like a flexible shell, which is injected into the shoe interior and expands to conform to the inner surface. This flexible material naturally adapts to the complex geometry of the shoe interior, providing accurate measurement data without requiring precise control mechanisms, thereby resolving the technical contradiction between measurement precision and control difficulty.
2Measurement precision
If material is injected into the sensor to measure shoe interior dimensions, then accurate measurement is achieved, but excessive material injection may occur
Solution Approach 1:
The patent incorporates a feedback mechanism through the sensor that monitors the expansion state of the injected elastic material. The sensor detects when the material has fully conformed to the shoe interior surface, providing feedback signals that indicate the measurement is complete. This feedback system prevents excessive material injection by stopping the process at the optimal point, thereby achieving accurate measurement while minimizing material usage.
Solution Approach 2:
The patent applies partial action by injecting only the necessary amount of material required to fully expand and conform to the shoe interior. Rather than injecting excessive material and then removing the excess, the system carefully controls the injection to provide just enough material for complete surface coverage, optimizing both measurement accuracy and material efficiency.
3Productivity
If material is injected rapidly into the sensor, then measurement time is reduced, but uniform distribution of material is difficult to achieve
Solution Approach 1:
The patent employs periodic action by controlling the material injection in controlled intervals rather than continuous rapid injection. The injection process is divided into stages with pauses, allowing the elastic material to gradually expand and distribute uniformly throughout the sensor. This periodic injection approach maintains measurement speed while ensuring homogeneous material distribution for accurate measurements.
Solution Approach 2:
The patent utilizes the dynamic properties of the elastic material by allowing it to flow and expand progressively as it is injected. The material's viscoelastic characteristics enable it to adapt to the shoe interior geometry in real-time during the injection process, achieving uniform distribution even with controlled injection rates. This dynamic approach balances measurement speed with material uniformity.
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
This solution enables precise measurement and modeling of shoe interiors, reducing measurement errors and allowing for accurate data storage, while minimizing material injection and ensuring uniform distribution through an auxiliary body with multiple injection points.
Implementation Method 1
a sensor (100) configured to receive a material injected therein and to sense a physical change of a surface thereof
Data Source
AI summary
The present disclosure relates to an apparatus, for generating information about the interior of a shoe, comprising: a sensor unit into which material can be injected and which can sense physical changes on the surface; a material injection unit for injecting the material into the sensor unit; and a processor unit for generating information on the interior of the shoe on the basis of the physical change of the surface sensed by the sensor unit.