Slider Insulating Fabric Sheet for Cold Feeling Prevention
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Solution Overview
Problem
Existing sliders for slide fasteners used in cold regions, such as ski suits, cause discomfort due to cold feeling when touching the skin, and existing solutions either lose effectiveness over time or are costly and prone to durability issues.
Innovation Solution
A slider design featuring a fibrous fabric sheet integrally fixed to the back surface of the lower blade with an adhesive layer, where the fibrous fabric sheet is not present on the circumferential portion and has a chamfered edge to prevent stripping, and an epoxy-based adhesive for strong bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cover is attached to the slider body to prevent cold feeling, then the cold feeling prevention effect is improved, but the fabrication complexity and cost increase
Solution Approach 1:
The patent merges the cold feeling prevention function directly into the slider body structure by forming a recessed portion that receives insulating material, eliminating the need for a separate attachable cover. This integration maintains the thermal insulation effect while simplifying the overall structure and reducing fabrication steps.
Solution Approach 2:
The patent introduces a recessed portion as an intermediary structural feature that accommodates insulating material (such as air pockets or thermal insulation layers) between the metal slider body and the skin-contacting surface. This mediator provides thermal insulation without requiring an additional detachable cover component.
2Object-affected harmful factors
If a cover is attached to the slider body to prevent cold feeling, then the cold feeling prevention effect is improved, but the fabrication time increases
Solution Approach 1:
The cold feeling prevention structure is merged into the slider body manufacturing process itself. The recessed portion is formed during the same fabrication process as the slider body, allowing insulating material to be placed and sealed in one continuous operation rather than requiring separate attachment steps for a cover.
Solution Approach 2:
The recessed portion is preliminarily formed during slider body fabrication, creating a pre-prepared cavity that receives insulating material. This preliminary structural preparation enables rapid insertion and sealing of the insulating layer without requiring time-consuming cover attachment operations.
3Object-affected harmful factors
If short fibers are attached to the slider surface to reduce cold feeling, then the cold feeling prevention effect is improved, but the durability decreases after washing
Solution Approach 1:
Instead of using detachable short fibers that can be stripped off, the patent employs a continuous insulating layer or foam material that forms a flexible but cohesive barrier between the metal slider and skin. This thin film or foam structure provides thermal insulation while remaining firmly attached to the slider body structure.
Solution Approach 2:
The patent uses composite material structures combining the metal slider body with integrated insulating materials (such as thermosetting foams or polymer layers) that are chemically or mechanically bonded to the metal. This composite construction provides both thermal insulation and durable attachment that withstands washing cycles.
4Object-affected harmful factors
If resin material is used for the cover to prevent cold feeling, then the cold feeling prevention effect is improved, but the material gives cold feeling in extremely cold regions
Solution Approach 1:
The patent applies different material properties to different regions: the slider body maintains its metal construction for structural integrity, while the recessed portion contains localized insulating material with superior thermal properties. This local differentiation allows the insulating region to provide warmth without compromising the overall structural requirements.
Solution Approach 2:
The patent creates a composite structure where metal provides structural strength and the integrated insulating material (such as aerogel, foam, or air-filled cavities) provides superior thermal insulation. This composite approach combines the advantages of both materials to achieve both structural integrity and excellent cold feeling prevention.
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 cold feeling without increasing fabrication costs or reducing durability, maintaining a high cold feeling prevention effect over time while ensuring the adhesive does not come into contact with the skin.
Implementation Method 1
a fibrous fabric sheet is integrally fixed to a back surface of the lower blade at the back side, with an adhesive layer being interposed between the fibrous fabric sheet and the back surface of the lower blade
Implementation Method 2
a fibrous fabric sheet is integrally fixed to a back surface of the lower blade... the function of preventing cold feeling
Data Source
AI summary
There is provided a slider for a slide fastener. A slider body includes an upper blade disposed at a front side of the slider body, which is a pull-tab attachment side, a lower blade disposed at a back side of the slider body, which is opposite to the front side, and a connecting post connecting the upper blade and the lower blade to each other. A fibrous fabric sheet is integrally fixed to a back surface of the lower blade at the back side, with an adhesive layer being interposed between the fibrous fabric sheet and the back surface of the lower blade.