Slider Pull Tab Attachment Segmented Guide Structure
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Solution Overview
Problem
Conventional slide fastener sliders with gate-shaped pull tab attachment portions face difficulties in attaching string-shaped pull tabs due to the narrow width and low strength of the attachment portion, making it challenging to insert and secure the pull tab effectively.
Innovation Solution
The design includes a slider body with protruding first members and a connecting second member forming a pull tab attachment portion, where the first members have base and wall portions extending from the base towards the front and rear sides, guiding the string-shaped pull tab for easy insertion and enhancing the attachment strength by distributing the tensile force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a gate-shaped pull tab attachment portion is used, then the structure is simple, but the string-shaped member is difficult to insert and the attachment strength is low
Solution Approach 1:
The pull tab attachment portion is segmented into multiple components: a pair of right and left first members with base portions and wall portions, and a second member connecting them. This segmentation creates a structured framework that guides the string-shaped member while maintaining overall structural simplicity.
Solution Approach 2:
The wall portions of the first members act as intermediary elements that guide the string-shaped member during insertion. These wall portions provide a physical pathway and support structure that facilitates easy attachment without complicating the overall design.
2Device complexity
If a gate-shaped pull tab attachment portion is used, then the structure is simple, but the attachment strength is low
Solution Approach 1:
The attachment portion is divided into first members with base portions and wall portions, and a connecting second member. This segmentation allows each component to contribute to strength: the base portions provide anchoring strength, the wall portions provide structural rigidity, and the second member provides connecting strength.
Solution Approach 2:
The pull tab attachment portion combines multiple structural elements (first members with base and wall portions, and a second member) into a composite structure that achieves high attachment strength while maintaining relative simplicity. The combination of these elements creates a synergistic effect for strength enhancement.
3Volume of moving object
If the pull tab attachment portion has a narrow width, then the structure is compact, but the strength is reduced
Solution Approach 1:
The first members are designed with base portions and wall portions that extend in different spatial dimensions. The wall portions extend from the base portions toward the front and rear sides, creating a three-dimensional structure that provides strength without increasing the overall width of the attachment portion.
Solution Approach 2:
The base portions and wall portions of the first members are strategically positioned to provide localized strength enhancement. The wall portions are arranged to extend from the base portions, creating localized structural reinforcement at critical areas without requiring a uniform increase in width across the entire attachment portion.
Data Source
AI summary
There is provided a slide fastener slider. A slider body has an upper blade and a lower blade connected by a guide post at front end sides thereof, and a pull tab attached to a pull tab attachment portion formed on the upper blade. The pull tab attachment portion has a pair of right and left first members protruding from the upper surface of the upper blade, and a second member connecting the pair of the right and left first members. The first members have a base portion and a wall portion arranged to extend from the base portion toward at least one of front and rear sides thereof. The pull tab has a string-shaped member and the string-shaped member is attached to the pull tab attachment portion.