Cord Lock Snap-Fastening Mechanism for Apparel Stability
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Solution Overview
Problem
Existing fasteners for cords on apparel or knapsacks fail to prevent the cord from swinging during movement, causing inconvenience to users.
Innovation Solution
A cord lock with a hollow central zone and a convex portion that engages with a base on the article via snap-fastening, providing a secure fixation without affecting the appearance or functionality of the article.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a conventional fastener is attached to the cord, then the end portion of the cord can be fastened, but the cord still swings during movement
Solution Approach 1:
The fastening system is divided into two separate components: a base fixed to the article and a cord lock attached to the cord. This segmentation allows the cord lock to be positioned along the cord at optimal locations for stability, rather than being constrained to the article's surface only.
Solution Approach 2:
The solution transitions from two-dimensional surface attachment (fastener on article surface) to three-dimensional spatial positioning (cord lock can be positioned anywhere along the cord's length). This enables the cord to be secured at multiple points in space, preventing swinging during movement.
2Stability of the object's composition
If the cord is fastened close to the hat brim, then the hat brim can be tightened, but the fastener cannot prevent the cord from suspending down
Solution Approach 1:
The cord lock is designed with elastic material that allows it to dynamically adjust and lock onto the cord at various positions. The elastic property enables the cord lock to maintain stability while accommodating different cord positions along its length.
Solution Approach 2:
The fastening mechanism utilizes changes in elastic deformation parameters to achieve locking. The cord lock's elastic material deforms to engage with the cord and maintains the fastened state through elastic recovery, providing stable positioning without complex mechanical structures.
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 cord lock effectively prevents the cord from swinging, enhancing user convenience during activities like running by securely fastening the cord at any position without compromising the article's appearance or usability.
Implementation Method 1
The cord lock and the base may be made of an elastic material, such as plastics
Data Source
AI summary
The present utility model relates to a fastener for cord comprising a cord lock mounted on a cord of an article for locking the cord, characterized in that said cord lock has a engaging portion which is provided with a hollow central zone having an inner diameter, said fastener for cord further has a base fixed on said article, a convex portion is arranged on said base for engaging with said central zone in a manner of snap-fastening, the inner diameter of said central zone is slightly smaller than the outer diameter of the convex portion on said base so as to make the central zone engaged, in a manner of snap-fastening, with said base. The present utility model is available for fastening an article (such as a fixer or bottom on a cord) so as to avoid inconveniency brought to users by the article.