Slide Fastener Slider Detachable Pull Tab Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional slide fastener sliders with detachable pull tabs face challenges in productivity and manufacturing cost due to complex assembly processes and mold design requirements, particularly in aligning and inserting pins, which complicates the assembly process and increases production time and costs.
Innovation Solution
A slide fastener slider design featuring a fitting sliding structure where the pull tab holder body is attached to the slider body in a cantilevered state using flanges and flange sliding grooves, eliminating the need for sideways pin insertion and allowing assembly in the back-and-forth and vertical directions, and using a leaf spring for the automatic stop mechanism, which simplifies assembly and reduces mold complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pin insertion structure is used to attach the pull tab holder body to the slider body, then the pull tab can be detachably attached, but the assembly process becomes complex and productivity decreases
Solution Approach 1:
The invention extracts and eliminates the pin component from the attachment structure. Instead of using a pin that needs to be inserted through aligned holes, the pull tab holder body is directly attached to the slider body through a simplified structure where the holder body's opening/closing member interacts with the slider body's protrusion, removing the need for separate fastening pins and reducing assembly steps
Solution Approach 2:
The invention merges the attachment function with the opening/closing mechanism. The opening/closing member that originally served only to open/close the gap now also serves as the attachment means for securing the pull tab holder body to the slider body, combining multiple functions into a single structural element
2Reliability
If sideways pin insertion is used for assembly, then the pull tab holder body can be securely attached, but the mold design becomes complex and manufacturing cost increases
Solution Approach 1:
The invention removes the need for sideways pin insertion and the associated complex mold structures. The attachment is achieved through the interaction between the opening/closing member and the protrusion on the slider body, eliminating the need for separate pin holes and complex mold components that would be required for sideways assembly
Solution Approach 2:
Instead of inserting a pin from the side to secure the attachment, the invention inverts the approach by having the opening/closing member itself form the attachment interface. The member that moves to open/close the gap also serves as the securing element through its interaction with the slider body's protrusion, reversing the conventional pin insertion methodology
3Manufacturing precision
If a complex assembly process is used to ensure proper alignment, then the slider components can be securely attached, but the assembly time increases and productivity decreases
Solution Approach 1:
The invention incorporates preliminary alignment features directly into the mold design. The protrusion on the slider body and the corresponding recess in the pull tab holder body are pre-positioned during molding, ensuring automatic alignment when the components are assembled. This preliminary action during manufacturing eliminates the need for complex alignment procedures during assembly
Solution Approach 2:
The opening/closing member automatically performs both the alignment and attachment functions. As the member moves to open or close the gap, it simultaneously engages with the protrusion on the slider body, achieving proper alignment and secure attachment in a single self-service action without requiring separate alignment steps or external intervention
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances productivity by simplifying the assembly process, reducing the need for complex mechanisms and mold structures, and increasing the quantity of molded products per cycle, thereby lowering manufacturing costs and improving the efficiency of the assembly process.
Implementation Method 1
an elastic member for urging the opening/closing member to a closing position of the gap
Data Source
AI summary
A slide fastener slider comprising: a slider body; a pull tab holder body attached to the slider body in a cantilevered state with one end portion thereof fixed to a top face side of the slider body; an opening/closing member disposed slidably on the slider body so as to open and close a gap formed between an other end portion of the pull tab holder body and the upper blade; and an elastic member for urging the opening/closing member to a closing position of the gap, so that a pull tab is detachably held between the slider body and the pull tab holder body, the slider further comprising a fitting sliding structure in which the pull tab holder body is fitted to the slider body from a front or rear end thereof so as to be relatively slidable in a length direction of the slider body.