Glove Injection Molding Assembly Bonding

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Solution Overview

Problem

Existing glove structures with multiple-layer designs suffer from increased weight, thickness, and reduced breathability, leading to discomfort and a short usage lifetime due to section gaps that easily separate, compromising their functional integrity.

Innovation Solution

A glove structure featuring an injection molding assembly that fills the section gap between the piece and the glove core, providing a shielding and fixing effect while maintaining the original function, with the injection molding assembly extending to the top surface and forming a bonding layer, and using angles and shapes to enhance the bonding force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

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 weight and thickness of the glove are increased

Engineering Contradiction:

Improvebonding strengthVSAvoidglove weight

Core Design Contradiction:

StrengthVSWeight of stationary object

Solution Approach 1:

The invention extracts the bonding function from a separate injection molding assembly and integrates it directly into the piece itself. The piece is designed with an injection-molded structure that forms integral bonding regions, eliminating the need for a distinct bonding layer while maintaining strong attachment to the glove core.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention merges the piece and bonding structure into a single integrated component. The injection-molded piece incorporates bonding features directly in its structure, combining what were previously separate elements (piece + bonding assembly) into one unified part that reduces overall weight and thickness.

Inventive Principle:

Principle #5Merging (Combining)

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 thickness of the glove is increased

Engineering Contradiction:

Improvebonding strengthVSAvoidglove thickness

Core Design Contradiction:

StrengthVSLength of stationary object

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention transitions from a multi-layer stacked structure to a more integrated three-dimensional design where the bonding features are formed within the piece's own structure rather than as separate layers. This dimensional reorganization reduces overall thickness while maintaining bonding effectiveness.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If a non-injection molding assembly is adhered to the glove core, then the functional construction is achieved, but the breathability of the assembly is deceased or lost

Engineering Contradiction:

Improvefunctional constructionVSAvoidbreathability loss

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The invention employs porous or permeable materials for the piece that allow breathability while maintaining functional construction. The injection-molded structure incorporates porous features or is made from materials that permit air and moisture vapor transmission, preventing the breathability loss associated with solid non-injection molded assemblies.

Inventive Principle:

Principle #31Porous materials

4Ease of manufacture

If the piece is bound to the glove core via stitching or adhesive manner, then the assembly is simple, but the section gap forms that easily separates under external force

Engineering Contradiction:

Improveassembly simplicityVSAvoidbonding reliability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The invention replaces mechanical bonding methods (stitching, adhesive) with an injection-molded integral bonding system. The piece is directly injection-molded onto the glove core, creating a mechanical interlock through molded features that eliminate section gaps and provide reliable bonding without requiring separate stitching or adhesive applications.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 solution effectively prevents the piece from separating from the glove core, maintaining the glove's required function over a long term, enhancing the quality and durability of the glove structure without compromising breathability or increasing thickness.

Implementation Method 1

the injection molding assembly fills a section of the piece

Methodology Applied

Scientific EffectInjection molding:

Data Source

PatentEP3581049B1Glove structure

Publication Date: 2023.09.27 JOHN ENGINE SPORTS PROD INC

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AI summary

In the present disclosure, a piece is disposed on a glove core of a glove structure, and an edge of the piece is to injected and filled with molding material to have an injection molding assembly thereon. The injection molding assembly at least fills a secction gap between the glove core and the edge of the piece. By using the injection molding assembly, the secction 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 porvides postive 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.