Zipper Enclosure Design to Prevent Bed Bug and Particle Migration
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Solution Overview
Problem
Closed zippers, particularly those used in mattress encasements, can still allow small particles or organisms like bed bugs to migrate through a small opening between the slider head and the zipper chain, despite being closed.
Innovation Solution
A zipper enclosure system comprising an enclosure base and cover that attaches to the mattress cover, receiving the slider head and zipper chain, and includes barriers to prevent migration by forming a secure seal when closed, with features like channels, protrusions, and compressible pads to ensure a tight fit and provide tactile or audible feedback for complete closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a zipper is closed to join portions of material, then the connection strength and sealing are improved, but small particles or organisms can still migrate through the opening between the slider head and zipper chain
Solution Approach 1:
A barrier member is introduced as an intermediary element between the zipper components and the harmful particles/organisms. The barrier member extends across the opening adjacent to the slider head, physically blocking the migration path while allowing the zipper to function normally for joining material portions.
Solution Approach 2:
The solution moves from a two-dimensional zipper closure to a three-dimensional barrier structure. The barrier member adds a vertical dimension by extending downward from the zipper tape to cover the opening, creating a multi-layered protection system that blocks particles and organisms from passing through the slider head gap.
2Object-affected harmful factors
If a barrier member is added to block migration through the zipper opening, then protection against small particles and organisms is improved, but the device complexity increases
Solution Approach 1:
The barrier member is merged with the existing zipper structure by attaching it to the zipper tape, which is already part of the closed zipper assembly. This integration approach allows the barrier to be added without requiring a completely separate enclosure structure, thereby reducing overall device complexity while still providing effective protection.
3Reliability
If the barrier member extends across the opening to prevent migration, then the sealing effectiveness is improved, but the ease of operation decreases
Solution Approach 1:
The barrier member is segmented or positioned such that it only covers the critical opening area adjacent to the slider head rather than the entire zipper length. This selective placement maintains sealing effectiveness at the vulnerable point while minimizing interference with the overall zipper operation and material flow during opening and closing.
Data Source
AI summary
A protective enclosure for a zipper of an article. The zipper enclosure may include an enclosure base that is attachable to the article, such as a mattress cover or padding materials for use with a bedding/furniture cover. The enclosure base may be configured to receive a one or more components of the zipper, such as the zipper slider and pull tab, upon closing of the zipper. When the zipper is closed, the enclosure base may be enclosed by an enclosure cover to contain and/or prevent migration of particles and/or organisms, such as bed bugs, allergens, dust mites, small particles and the like, from the article through an opening in the zipper chain adjacent the slider head. The enclosure may include one or more barriers for preventing migration of small particles and/or organisms past obstructions formed by the barriers.