Inner Glove with Nested Chemical Warmer for Hand Temperature Control

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing gloves, both outer and inner, lack a heat generation function, leading to hand temperature drops during cold activities or work, and inner gloves with chemical warmers often shift due to hand movements, reducing comfort.

Innovation Solution

An inner glove with a seamless, multilayer structure made of stretchable materials, featuring an opening for a chemical warmer to be inserted between the inner and outer fabrics, allowing it to be securely positioned facing the back of the hand.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a chemical warmer is inserted between the outer glove and the inner glove, then the heat generation function is improved, but the chemical warmer easily moves out of position due to hand movements

Engineering Contradiction:

Improvehand temperatureVSAvoidwearing comfort

Core Design Contradiction:

TemperatureVSEase of operation

Solution Approach 1:

The chemical warmer is nested between the inner fabric and outer fabric of the glove body, with the inner fabric having a holder that securely holds the chemical warmer in place. This nesting structure prevents the chemical warmer from moving out of position during hand movements while maintaining close contact for effective heat generation.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The inner fabric acts as an intermediary between the chemical warmer and the hand, providing a holder structure that secures the chemical warmer while allowing heat to be transmitted to the hand. This intermediary structure solves the problem of the chemical warmer moving independently from the hand.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the inner glove is made of stretchable material for good fit, then the wearing comfort is improved, but the chemical warmer may shift position more easily

Engineering Contradiction:

Improvewearing comfortVSAvoidchemical warmer position

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The chemical warmer is nested within a holder structure formed by the inner fabric, which is itself nested within the outer fabric. This nested configuration ensures that the chemical warmer remains stable and in the correct position even when the stretchable glove material deforms during hand movements.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The inner fabric is made of stretchable material that forms a flexible holder structure. This flexible shell can deform with hand movements while maintaining the chemical warmer's position, combining wearing comfort with positional stability.

Inventive Principle:

Principle #30Flexible shells and thin films

3Ease of operation

If the inner glove has a seamless structure, then the wearing comfort is improved, but the manufacturing complexity increases

Engineering Contradiction:

Improvewearing comfortVSAvoidmanufacturing complexity

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The glove is manufactured as a seamless tubular knitted fabric, which is then segmented by cutting to create the final glove shape with openings for fingers and thumb. This segmentation approach maintains the seamless comfort benefit while enabling practical glove construction.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The seamless tubular knitted fabric acts as a flexible shell that can be cut and shaped into the final glove form. This flexible film structure maintains the seamless comfort advantage while allowing standard cutting and assembly manufacturing processes.

Inventive Principle:

Principle #30Flexible shells and thin films

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 inner glove effectively prevents hand temperature drops through the chemical warmer's heat generation, maintains comfort by minimizing the warmer's movement, and provides excellent breathability and fit without sewn seams.

Implementation Method 1

Chemical warmers are known as having a heat generation function

Methodology Applied

Scientific EffectExothermic reaction: Exothermic Reaction

Implementation Method 2

the inner fabric and the outer fabric are made of a stretchable material

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS20250134189A1Inner glove

Publication Date: 2025.05.01 KOBAYASHI PHARMA CO LTD

AI summary

An inner glove configured such that a chemical warmer is attachable in a position facing the back of a hand. The inner glove is configured for wearing under an outer glove, wherein the inner glove includes a body portion that is seamless in a circumferential direction of the hand, the body portion includes an opening in which a wrist may be inserted, an opening in which a thumb may be inserted, and at least two openings in which fingers other than the thumb may be inserted.