Remote-Operation Slide Fastener Slider With Fixed Pull String
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Solution Overview
Problem
Existing slide fasteners are cumbersome for remote operation, particularly when located in hard-to-reach areas, as the string's movement within the slider's through-hole requires significant pulling to engage the stopper or pull tab, delaying the fastening and unfastening process.
Innovation Solution
A slider design where a string with pull tabs is fixed to the body using separate members, including upper and lower blades with guide posts and fixture members, allowing direct force application to the body for smooth sliding, enabling quick fastening and unfastening without delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the string is arranged to pass through a through-hole in the slider for remote operation, then the slide fastener can be operated remotely, but the string cannot be freely moved until the stopper or pull tab contacts the slider, causing delay in fastening and unfastening
Solution Approach 1:
The slider body is divided into upper and lower blades with a guide post connecting them, creating separate structural zones. The string-receiving portion is specifically formed on one of the blades, separating the string guidance function from the general slider body structure. This segmentation allows the string to be properly routed and contacted efficiently.
Solution Approach 2:
A guide post is introduced as an intermediary element that connects the upper and lower blades. The guide post provides a defined path for the string and ensures proper alignment between the string pull and the slider movement, enabling efficient force transmission without delay.
2Reliability
If the string is fixed to the body using fixture members through an opening, then the string can be securely attached for direct force application, but the structure becomes more complex
Solution Approach 1:
The fixation system is segmented into distinct components: the opening in the blade, the fixture members, and the string-receiving portion. This modular approach allows each component to perform its specific function efficiently while maintaining overall structural reliability.
Solution Approach 2:
The fixture members are designed to automatically secure the string through the opening without requiring additional complex mechanisms. The string-receiving portion on the blade works together with the fixture members to provide self-contained fixation, reducing the need for external complex structures.
3Ease of manufacture
If the string-receiving portion is provided on the blade surface with a protrusion, then the string can be received and fixed efficiently, but the manufacturing process becomes more complex
Solution Approach 1:
The string-receiving portion is merged with the blade structure, forming an integrated component rather than a separate attachment. The protrusion is formed directly on the blade surface, combining the blade's structural function with the string reception function in a single element, which simplifies the overall manufacturing process.
Solution Approach 2:
The blade serves multiple functions: it provides the structural framework of the slider, guides the fastener elements, and incorporates the string-receiving portion with the protrusion. This multi-functionality reduces the total number of components and simplifies manufacturing by eliminating the need for separate string reception mechanisms.
Data Source
AI summary
A slider for a slide fastener is provided which is capable of quickly fastening and unfastening the slide fastener in a remote operation manner. A string having pull tabs on longitudinally opposite sides is fixed to a body of the slider for a slide fastener such that the string is not moved in the longitudinal direction.