Shoe Upper Venting Structure for Swing-Driven Air Exhaust
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Solution Overview
Problem
Conventional shoes fail to effectively ventilate during leg swinging motions, leading to stuffiness due to moisture from sweat, particularly in sports shoes.
Innovation Solution
The shoe design incorporates an air sucking out portion on the inner foot outer surface that extends at a predetermined angle relative to the vertical direction, recessed and slanted to utilize negative pressure created by leg movement, combined with air intake and exhaust portions strategically positioned to enhance ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a guide piece is disposed with a forward gradient to be parallel to air flow at highest speed, then air intake into the ventilation means is improved, but air exhaust from the shoe is insufficient
Solution Approach 1:
The ventilation system is divided into separate air intake portions and air exhaust portions. The air intake portion includes a guide piece for directing air inward, while the air exhaust portion has openings disposed at different positions and orientations to facilitate air discharge, allowing each segment to optimize its specific function independently
Solution Approach 2:
Different portions of the ventilation system have different structural characteristics optimized for their specific functions. The air intake side has a guide piece with forward gradient for efficient air capture, while the air exhaust side has openings with different orientations and positions to leverage pressure differentials for effective air discharge
2Ease of operation
If ventilation openings are disposed on the upper portion, then air circulation is improved, but ventilation effectiveness during leg swinging motion is insufficient
Solution Approach 1:
The air exhaust portions are disposed to take advantage of dynamic pressure changes during leg swinging motion. The openings are positioned and oriented to capture air flow generated by the swinging motion itself, making the ventilation system adaptive to the dynamic conditions during exercise
Solution Approach 2:
The ventilation system utilizes the leg swinging motion itself to generate the air flow needed for ventilation. The air exhaust portions are positioned to automatically capture and discharge air during the natural swinging motion, requiring no additional power source or active control
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 configuration effectively ventilates the shoe interior by utilizing negative pressure and airflow dynamics to efficiently remove moisture and air, improving comfort during walking and running.
Implementation Method 1
an air sucking out portion from which air is capable of being sucked out from the internal space to outside of the shoe, when a leg of a wearer of the shoe swings
Data Source
AI summary
A shoe includes an upper portion surrounding an internal space configured to accommodate a foot. The upper portion includes an inner foot outer surface of an inner foot portion, and an air sucking out portion from which air is capable of being sucked out from the internal space to outside of the shoe when a leg of a wearer of the shoe swings is disposed on the inner foot outer surface of the inner foot portion of the upper portion. The air sucking out portion extends in a direction which is slanted by a predetermined first angle with respect to a vertical direction when the shoe is placed on a horizontal plane and is recessed relative to the inner foot outer surface.