Snap-Fit Luggage Case Frame for Faster Zipper Assembly
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Solution Overview
Problem
Conventional luggage cases with zipper structures require significant manual labor for production, have low automation, and low production efficiency due to complex sewing and assembly processes.
Innovation Solution
A luggage case with a rapidly installed structure featuring a snap-fit design using integrally formed fastened frames, connecting rings, and a bent joint, allowing for easy assembly and automation, with a zipper connected through these components and an inner lining connected via clamping grooves and connecting rings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a zipper-type luggage case uses soft rubber material connected outside the case shell with sewing and inner lining fastening, then the luggage case achieves functional closure, but the production process requires significant manual labor with low automation and low production efficiency
Solution Approach 1:
The patent replaces the traditional mechanical sewing and fastening system with a snap-fit system. The zipper is connected to the fastened frame through connecting rings that snap into clamping grooves, eliminating the need for sewing machines and manual fastening operations. This mechanical substitution enables automated assembly processes significantly improving production efficiency and automation degree.
Solution Approach 2:
The patent divides the fastening system into separate modular components: the fastened frame, connecting rings, and clamping grooves. This segmentation allows each component to be manufactured independently and assembled through simple snap-fit operations, reducing complex manual assembly steps and enabling automated production lines.
2Strength
If the zipper is sewn and fastened with inner lining in conventional luggage cases, then the structure achieves secure connection, but the assembly process becomes complex requiring more manual labor
Solution Approach 1:
The patent extracts the connecting rings from the traditional sewn zipper structure and makes them independent snap-fit components. The connecting rings are separately formed and then snapped into the clamping grooves of the fastened frame, simplifying the assembly process while maintaining secure connection strength through the elastic snap-fit mechanism.
3Reliability
If conventional luggage cases use traditional assembly methods with sewing and multiple fastening steps, then the structure achieves durability, but the production time and labor requirements increase significantly
Solution Approach 1:
The patent replaces time-consuming sewing and multiple fastening operations with a single snap-fit operation. The connecting rings snap into the clamping grooves in one quick motion, dramatically reducing assembly time while maintaining structural durability through the elastic retention force of the snap-fit mechanism.
Data Source
AI summary
The present invention provides a luggage case with a rapidly installed structure, including a first case body, a second case body, a first zipper, a first fastened frame, a first connecting ring, a second fastened frame, a second connecting ring, and a bent joint. The first fastened frame is connected to the first case body by providing a first clamping groove, the second fastened frame is connected to the second case body by providing a first clamping groove, and the first fastened frame and the second fastened frame are integrally formed through injection molding. The zipper is connected to the case body by firm bonding, and stability is ensured. The bent joint is disposed to be adapted to a shape of the fastened frame and plays roles of connection and limitation.