Portable Scale Guide Mechanism Slotted Rail Captive Trolley
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Solution Overview
Problem
Current portable luggage scales lack a viewable weight display from directly above, have limited handling options, and are not stowable, making them uncomfortable and inefficient for weighing and transporting luggage.
Innovation Solution
A portable scale with retractable and stowable handles, a retractable weighing hook, and a digital weight display visible from above, featuring ergonomic S-shaped handles and an electronic circuitry that includes a microprocessor-controlled LCD for weight measurement and tare weight adjustment, with optional elastomeric sleeves for comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single handle is provided for lifting, then the device structure is simple, but user comfort and lifting efficiency are poor
Solution Approach 1:
The single handle is divided into two separate handles that can be independently positioned and adjusted. This segmentation allows each handle to be optimized for specific lifting positions, improving user comfort and lifting efficiency while maintaining manageable structural complexity through modular design
2Ease of operation
If the weighing hook is fixed, then the structure is simple, but the scale cannot be stowed compactly for portability
Solution Approach 1:
The weighing hook is transformed from a fixed component to a dynamic, retractable component that can move between extended (weighing) and retracted (stowed) positions. This dynamic design enables compact storage for portability while maintaining full functionality during weighing operations, with the mechanism automatically transitioning between states
3Ease of operation
If the weight display is on the side, then the device structure is simple, but the display is not viewable from directly above during use
Solution Approach 1:
The weight display is repositioned from a side-mounted two-dimensional arrangement to a top-mounted configuration that utilizes the vertical dimension. This allows the display to be viewed from directly above during weighing operations, improving ergonomics and readability without requiring complex additional display mechanisms
4Ease of operation
If the handles are extended permanently, then lifting comfort is improved, but the scale cannot be stowed compactly
Solution Approach 1:
The handles are designed as dynamic components that can extend to full length during weighing operations for optimal lifting comfort, then retract to compact positions when not in use. This dynamic extension and retraction capability allows the scale to provide excellent ergonomics during operation while maintaining compact stowed volume for portability
Data Source
AI summary
A portable digital scale is disclosed, having retractable and stowable handles and weighing hook, as well as a weight display that may be viewed from directly above the scale.