Forward-Opening Luggage Case with Spring-Assisted Hinge
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Solution Overview
Problem
Conventional luggage cases lack a forward-opening mechanism, requiring users to unzip the zipper for accessing items, which is cumbersome and lacks innovation in design.
Innovation Solution
A luggage case with a front panel that can be opened forward, featuring a snap-fitting structure with injection molded parts, a hinge assembly with bearings and springs, and a lock hook structure, allowing the front panel to rotate open conveniently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional zipper opening is used, then the luggage case can be opened, but users must unzip the zipper which is cumbersome and lacks innovation
Solution Approach 1:
The front panel is designed to open forward rather than upward, inverting the conventional opening direction. This allows users to access items by pushing the front panel forward, eliminating the need to unzip a traditional zipper and significantly improving opening convenience and access speed
Solution Approach 2:
The opening mechanism is segmented into independent components: the front panel, panel fixing frame, hinge assembly, bearings, and springs. This segmentation allows the front panel to rotate independently on hinges while the zipper remains functional for closing, creating a dual-mode opening system that combines convenience with security
2Ease of operation
If a simple front opening structure is used, then the luggage case can be opened forward, but the structure lacks stability and appearance quality
Solution Approach 1:
Multiple functional elements are merged into integrated components: the panel fixing frame combines the fixation function with the hinge mounting function, while the hinge assembly integrates the rotation mechanism with bearing and spring elements. This merging creates a unified structure that maintains stability while enabling forward opening motion
Solution Approach 2:
Bearings serve as intermediary elements between the hinge assembly and the panel fixing frame, enabling smooth rotation while maintaining structural stability. The springs act as intermediaries that provide resilient force to push the front panel open, ensuring reliable operation without compromising the fixed appearance when closed
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
The solution provides a fast and convenient opening mechanism, enhancing user experience by eliminating the need for unzipping and improving the stability and appearance of the luggage case.
Implementation Method 1
the front panel is opened by rotation of the hinge assembly driven by the bearings under action force of the springs
Implementation Method 2
a pair of bearings and a pair of springs are provided in the hinge assembly; one end of the hinge assembly is fixed on the panel fixing frame, and another end of the hinge assembly is fixed on the case body
Data Source
AI summary
A luggage case capable of being opened forwards, including a case body; a front panel is provided on the case body; a panel fixing frame is on a side of the front panel facing an inner cavity of the case body; a snap-fitting structure is provided between the front panel and the panel fixing frame; a bottom part of the panel fixing frame is provided with a panel-opening structure, which includes a hinge assembly; bearings and springs are provided in the hinge assembly; two ends of the hinge assembly are fixed to the panel fixing frame and the case body respectively; an opening-closing structure is provided between a top part of the front panel and the case body; when the opening-closing structure is opened, the bearings drive the hinge assembly to rotate forwards to push open the front panel under resilient force of the springs.