Two-Way Zipper Insertion Assembly with Guide Plate
Solution Overview
Problem
Existing two-way zippers are difficult to operate due to the need for two hands to align sliders, and they often experience slider misalignment and shaking, leading to inefficient insertion and pulling.
Innovation Solution
A two-way insertion assembly with a retainer and limiter that guides and stabilizes the sliders, preventing lateral movement and ensuring precise alignment, allowing for quick and stable insertion and pulling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the strength of the two-way insertion assembly and tape is increased, then the slider alignment stability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
A guide plate is introduced as an intermediary component between the sliders and the tape. The guide plate includes guide portions that extend into the inner cavities of the sliders, providing lateral guidance and alignment without requiring the tape itself to be harder or stronger. This mediator component resolves the alignment stability issue while keeping the tape and slider structures simple.
Solution Approach 2:
The alignment function is segmented from the tape and slider structures and concentrated into a separate guide plate component. The guide plate is divided into multiple guide portions, each serving specific alignment functions for different sliders. This segmentation allows the alignment function to be optimized independently without increasing the complexity of the overall assembly.
2Measurement precision
If manual alignment of two sliders is required, then the alignment precision can be controlled, but the ease of operation deteriorates
Solution Approach 1:
The guide plate enables the sliders to self-align automatically during the zipping operation. As the sliders move along the tape, the guide portions of the guide plate automatically guide them into proper alignment without requiring manual intervention. The system serves itself by providing passive geometric guidance through the guide portions that match the shape and position of the slider inner cavities.
3Stability of the object's composition
If the tape hardness is increased, then the slider lateral shaking is reduced, but the ease of manufacture deteriorates
Solution Approach 1:
The guide plate serves as a mediator that provides lateral stability to the sliders without requiring changes to the tape material properties. The guide portions of the guide plate physically constrain the sliders laterally, preventing shaking and misalignment. This allows the use of softer, more easily manufactured tape materials while maintaining slider stability through the geometric constraints provided by the guide plate.
Data Source
AI summary
A two-way insertion assembly includes an insertion rod and an insertion pin for mounting two-way sliders, an insertion pin side wing base is provided on a cloth tape of the insertion pin; and an insertion pin side wing channel for the two-way sliders to enter is formed between the insertion pin and the insertion pin side wing base, and the insertion pin side wing channel is provided with a limiting portion capable of transversely limiting the sliders moving in place. The problem of the cloth tape coming into an inner cavity of a slider due to a transverse shake of the slider can be solved, and rapid and precise alignment of inner cavities of the two-way sliders can be easily achieved, thereby facilitating quick and accurate insertion and pull-out of the insertion rod.