Glove Edge Injection Molding for Bonding and Breathability
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Solution Overview
Problem
Existing glove structures with non-injection molding assemblies adhered to glove cores using injection molding assemblies result in a three-layer structure that increases weight, thickness, and reduces dexterity, while also compromising breathability and leading to functional failure over time due to section gaps and peeling issues.
Innovation Solution
The glove structure incorporates an injection molding assembly that fills a section of the piece covering the glove core, creating a shielding and fixing effect to prevent separation of the piece from the glove core, while maintaining the original function of the piece and enhancing bonding forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a non-injection molding assembly is adhered to a glove core using an injection molding assembly to form a three-layer structure, then the bonding strength between the piece and glove core is improved, but the weight, thickness, and device complexity increase
Solution Approach 1:
The patent extracts the injection molding assembly from the traditional three-layer structure and uses it only to fill the section gap between the piece and glove core. This eliminates the need for a separate adhesive layer, reducing structural complexity while maintaining bonding strength through the shielding and fixing effects of the injection molding assembly.
Solution Approach 2:
The patent merges the bonding function with the injection molding assembly itself. The injection molding assembly serves dual purposes: it fills the section gap to prevent peeling (bonding function) and maintains the original breathability function of the piece, thereby combining multiple functions into a single component rather than requiring separate layers.
2Strength
If a three-layer structure with injection molding assembly is used to bond the piece to the glove core, then the bonding strength is improved, but the breathability of the piece is compromised
Solution Approach 1:
The injection molding assembly is applied locally only in the section gap region where bonding is needed, rather than covering the entire piece. This localized application allows the majority of the piece to maintain its original breathability characteristics while still achieving effective bonding at the critical interface between the piece and glove core.
Solution Approach 2:
The injection molding assembly partially fills the section gap rather than completely encapsulating the piece. This partial action is sufficient to achieve the bonding and shielding effects needed to prevent peeling, while leaving enough space for the piece to maintain its breathability function.
3Ease of manufacture
If stitching or adhesive manner is used to bind the piece to the glove core, then the manufacturing process is simple, but section gaps form at the edges leading to peeling and reduced reliability
Solution Approach 1:
The injection molding assembly acts as an intermediary substance that fills the section gap between the piece and glove core. This intermediary material prevents direct contact between external forces and the piece-glove core interface, eliminating the peeling issue that occurs with traditional stitching or adhesive methods while maintaining manufacturing simplicity.
Solution Approach 2:
The injection molding assembly provides beforehand cushioning by filling the section gap before external forces can cause peeling. This preventive measure shields the piece-glove core interface from external forces that would otherwise cause separation, thereby improving bonding reliability without complicating the manufacturing process.
4Strength
If the injection molding assembly fills the entire piece area for bonding, then the bonding strength is maximized, but the original function of the piece is lost
Solution Approach 1:
The injection molding assembly is applied locally only in the section gap region rather than covering the entire piece. This localized application preserves the original breathability and other functions of the piece in the areas not covered by the injection molding assembly, while still achieving effective bonding where needed.
Solution Approach 2:
The patent segments the piece into two functional zones: the section gap region where the injection molding assembly provides bonding and shielding functions, and the remaining areas where the piece maintains its original functions such as breathability. This segmentation allows different parts of the assembly to serve different purposes simultaneously.
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 effectively prevents the edge of the piece from separating from the glove core, ensuring the glove structure maintains its required function over a long term, increases the quality and durability of the glove, and enhances the bonding between the piece, injection molding assembly, and glove core.
Implementation Method 1
the outer surface is configured to have an injection molding assembly and the injection molding assembly fills a section of the piece
Data Source
AI summary
A glove structure and its manufacturing method are illustrated. An edge of a piece disposed on a glove core of a glove structure is to injected and filled with molding material to have an injection molding assembly thereon. The injection molding assembly at least fills a section gap between the glove core and the edge of the piece. By using the injection molding assembly, the section gap between the glove core and the edge of the piece is masked, and an adhesive effect for bonding the piece is also obtained. Thus, the present disclosure provides positive and reliable means for preventing the edge of the piece from being separated from the glove core, making the glove structure maintain its required function in long term, increasing the quality and the lifetime of the glove structure, and making the glove structure have a curved surface shape to present its three-dimensional shape.