Ventilated Insole Pump Chamber for Thin Molded Shoes
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Solution Overview
Problem
Existing ventilation shoes and insoles suffer from structural complexity, poor durability, and inadequate ventilation, especially during activities like jogging or walking on tip toe, and are not suitable for integral molding methods.
Innovation Solution
An insole design featuring a thin, durable structure with laterally elongated check valves and a pump chamber that allows for high ventilation, suitable for integral molding methods, using elastic materials and metal or synthetic resin components to maintain stability and prevent deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional insole materials are used, then comfort is provided, but sweat accumulation and odor occur due to poor ventilation
Solution Approach 1:
The insole is divided into multiple functional layers: a base layer, a ventilation layer with through-holes, and an aromatic layer. This segmentation allows each layer to perform its specific function - the ventilation layer facilitates air circulation while the aromatic layer provides odor control, resolving the contradiction between comfort and ventilation.
Solution Approach 2:
The ventilation layer is designed with numerous through-holes of specific dimensions (0.1-2.0mm in diameter) distributed across its surface. This porous structure enables effective sweat evaporation and air circulation, directly addressing the ventilation function while maintaining comfort through moisture management.
2Reliability
If ventilation holes are added to the insole, then ventilation function is improved, but the insole structure becomes complex
Solution Approach 1:
The patent combines multiple functions into a single integrated insole structure: the ventilation layer with through-holes serves both as a structural component and a ventilation mechanism, while the aromatic layer is directly attached to form a unified multi-functional insole that prevents odor and manages moisture without requiring separate complex systems.
Solution Approach 2:
The ventilation layer performs multiple functions simultaneously: it facilitates air circulation through its porous structure, provides mechanical support as part of the insole assembly, and works in conjunction with the aromatic layer to prevent odor. This multi-functionality reduces the need for additional separate components, simplifying the overall structure.
3Object-generated harmful factors
If aromatic sheets are placed on the insole, then odor prevention is improved, but comfort is reduced due to direct contact with skin
Solution Approach 1:
The insole is segmented into distinct functional layers with the aromatic layer positioned between the base layer and the user's foot. This segmentation allows the aromatic layer to provide odor control functionality while the ventilation layer and base layer maintain comfort by managing moisture and providing a comfortable interface with the skin.
Solution Approach 2:
The ventilation layer acts as an intermediary between the aromatic layer and the user's skin. It allows the aromatic substances to volatilize and prevent odor while simultaneously managing moisture and providing a comfortable, breathable interface that prevents direct contact between the aromatic layer and the skin, thus maintaining comfort.
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 insole provides effective ventilation and durability, ensuring consistent airflow without deformation, suitable for various shoe manufacturing methods and activities, with enhanced stability and simplicity of production.
Implementation Method 1
a porous layer, through which sweat penetrates
Implementation Method 2
a porous layer, through which sweat penetrates
Implementation Method 3
an aromatic layer... that prevents odor by volatilizing aromatic substances
Data Source
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AI summary
There are provided an insole that is thin but has high ventilatory performance and high safety, and that is applicable to a shoe manufactured by an integral molding method, such as a vulcanizing method or an injection method, as well as a shoe. An insole 1 with ventilatory function comprises an air intake path; an air release path L2 configured to release the air inside of a shoe; an air intake check valve V1 placed to communicate with the air intake path and configured to include a base member provided with an open/close hole formed therein and a valve element controlled to open and close the open/close hole; an air release check valve V2 placed to communicate with the air release path L2 and configured to include a base member provided with an open/close hole formed therein and a valve element controlled to open and close the open/close hole; and a pump chamber configured to communicate with the air intake check valve V1 and with the air release check valve V2 and formed in a flat shape to include at least a partial area in front of a position of an arch of foot, or a pump groove portion 23 configured to form the pump chamber.