Reversible Slide Fastener Slider With Integrated Locking Protrusions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing slide fasteners, particularly those for reversible garments, face issues with unintended opening due to gravity and require bulky locking mechanisms, which increase manufacturing costs and may be uncomfortable or aesthetically unpleasing.
Innovation Solution
A reversible slider with symmetrical, flat wings and inwardly protruding locking protrusions, featuring two pullers and no vertical protrusions, ensuring easy manipulation from either side and preventing unintended opening while maintaining a sleek design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to prevent unintended opening, then the slider can resist gravity and maintain closure integrity, but the slider becomes bulky and manufacturing costs increase
Solution Approach 1:
The locking protrusions are integrated directly into the side flanges of the slider body, merging the locking function with the existing structural elements. This eliminates the need for separate locking mechanisms and keeps the slider structure simple while maintaining closure integrity
Solution Approach 2:
The locking function is segmented into multiple locking protrusions (at least one, preferably two) that protrude inwardly from the side flanges into the Y-shaped channel. These segmented locking elements engage with corresponding features on the stringers to prevent unintended opening
2Reliability
If locking protrusions are added to prevent unintended opening, then the slider can lock in position, but the slider structure becomes more complex
Solution Approach 1:
The locking protrusions are formed as integral parts of the side flanges, combining the locking function with the existing guide rail structure. This integration prevents unintended opening while avoiding additional complex components
Solution Approach 2:
Instead of adding external locking mechanisms that protrude outward, the locking protrusions extend inwardly from the side flanges into the Y-shaped channel. This inverted approach achieves locking capability while maintaining a sleek, simple exterior
3Adaptability or versatility
If the slider is made symmetrical for reversible use, then the slider can be manipulated from either side, but the design constraints increase
Solution Approach 1:
The slider employs symmetrical design elements (opposite wings of substantially the same size, symmetrical side flanges, and centrally positioned connecting post) to enable reversible manipulation. This controlled use of symmetry achieves versatility while managing design constraints
Solution Approach 2:
The symmetrical configuration of the wings and side flanges allows the slider to function identically when approached from either side, providing universal manipulation capability for reversible garments without requiring separate slider designs
Data Source
AI summary
A slider for a slide fastener includes a slider body (11) and two pullers (20, 21) pivotally attached to the slider body (11). The slider body (11) forms an upper wing (12), a lower wing (13), a connecting post (14) connecting the upper and lower wings, and side flanges (15). The side flanges protrude from side edges of the upper and lower wings towards a geometrical mid-plane (P) that lies between the wings (12, 13), so as to form a Y-shaped channel (19) between the upper and lower wings. The upper wing (12) and the lower wing (13) have respective opposite outer surfaces (23, 24) which are substantially flat, and are symmetrical with respect to the geometrical mid-plane (P). At least one locking protrusion (30) protrudes inwardly into the Y-shaped channel (19) from at least one of the side flanges (15) of the slider body (11).