Glove Insert Inflation for Bonding Consistency
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Solution Overview
Problem
The existing methods for adhering a glove insert to the outer material of gloves, such as those used in mountaineering and skiing, are costly due to the need for custom molds and result in inconsistent bonding, leading to wearability issues and low productivity.
Innovation Solution
A method and device where a gas injection means is used to expand the glove insert with adhesive, allowing it to bond with the outer material under controlled pressure and heat, eliminating the need for custom molds and improving bonding consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a custom mold in the form of fingers and a hand is used to adhere the glove insert, then the bonding between the outer material and glove insert can be achieved, but the manufacturing cost increases significantly
Solution Approach 1:
The patent extracts the complex custom mold from the system and replaces it with a simple cylindrical container. The glove insert itself is inflated to provide the necessary shape and pressure, eliminating the need for expensive custom molds while maintaining bonding consistency.
Solution Approach 2:
Instead of using a physical custom mold that copies the glove shape, the patent uses inflation of the glove insert itself to create the necessary form. The inflated insert acts as its own mold, eliminating the need for separate copying tools.
2Reliability
If heating and compressing is carried out from the exterior using a custom mold, then adhesion can be achieved, but the adhesion is insufficient and the glove insert comes away partially during use
Solution Approach 1:
Instead of compressing from the exterior, the patent inverts the approach by inflating from the interior. The glove insert is inflated with gas to create internal pressure that ensures uniform contact and adhesion between the insert and outer material, preventing partial detachment during use.
Solution Approach 2:
The patent changes the pressure application method from external mechanical compression to internal gas inflation. This parameter change ensures uniform pressure distribution and consistent bonding across the entire surface, eliminating the bonding inconsistencies that occur with external compression.
3Reliability
If manual adhesion operations are carried out one at a time using a mold, then bonding can be achieved, but the productivity is extremely low and the defect rate is high
Solution Approach 1:
The glove insert performs self-service by inflating itself to create the necessary pressure for bonding. This eliminates the need for manual operation and complex mold handling, enabling automated high-speed production while maintaining consistent bonding quality.
Solution Approach 2:
The patent introduces gas inflation (pneumatics) to replace manual mechanical compression. This enables automated, consistent pressure application at high speeds, dramatically improving productivity while maintaining bonding quality through uniform pressure distribution.
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 approach enhances bonding consistency, increases productivity, and reduces costs by allowing for more efficient and reliable adhesion of the glove insert to the outer material, improving the wearability and quality of the finished glove.
Implementation Method 1
gas is injected into the glove insert by way of a gas injection means, the glove insert is expanded and the outer material of the glove bonds with the glove insert
Implementation Method 2
the carrying out of heat treatment in a heating furnace to bond the outer material of the glove and the glove insert
Implementation Method 3
the softening or melting of the thermoplastic adhesive
Data Source
AI summary
In a glove manufacturing device, a glove insert with thermoplastic adhesive applied on the outer side is fixed on a glove holding member in a state where it has been inserted into the inner side of the outer material of the glove. The glove insert is then expanded by way of a gas injection means, and the outer material of the glove and the glove insert are bonded. The glove holding member is fixed on the turntable and sent to a heating furnace by this rotating.