Portable Deflection Gauge for Window Frames
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Solution Overview
Problem
Current tools lack convenience, portability, and the ability for single-handed operation to accurately measure deflection in large vertical surfaces such as window frames, particularly in disaster recovery scenarios, as they do not quantify deflection effectively over long spans or allow for simultaneous measurement of multiple points.
Innovation Solution
A device with an elongate frame and adjustable reference assemblies at each end, featuring a central gauge for measuring deflection, expansion sleeves for varying spans, and a handle for single-handed use, allowing for precise measurement without recalibration, and the option to take multiple measurements simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional tools like mason's bubble level are used to measure vertical surfaces, then level and plumb determination is achieved, but deflection quantification over long spans is not possible
Solution Approach 1:
The device is divided into a main body section and multiple extendable sections that can be added or removed. Each section contains its own reference assembly with bubble levels, allowing the device to be segmented for portability while maintaining measurement capability across extended spans when sections are combined.
Solution Approach 2:
The device combines multiple functions into a single tool: it can determine level, plumb, and quantify deflection measurements. The reference assemblies with bubble levels provide orientation reference, while the gauge mechanism simultaneously measures deflection, making the device versatile for comprehensive vertical surface assessment.
2Length of moving object
If existing measurement devices are used for long span deflection, then measurement capability is limited, but portability and ease of transport are improved
Solution Approach 1:
The device features dynamic extendability where sections can be added or removed based on the measurement span required. The telescopic or detachable section design allows the device to adapt its length dynamically, enabling single-handed operation for compact storage while achieving long span measurement capability when extended.
3Productivity
If multiple measurement points are measured sequentially, then measurement completeness is achieved, but measurement time and efficiency are reduced
Solution Approach 1:
Multiple gauges are combined into a single integrated device, allowing simultaneous measurement of multiple points along the vertical surface. The gauges are positioned at different locations on the device body, enabling concurrent measurement of deflection at multiple reference points without requiring sequential operations.
Data Source
AI summary
A portable device for measuring deflection of a surface, comprising an elongate frame having a first end and a second end and a first datum surface, a first removable reference assembly adjacent the first end, a second removable reference adjacent the second end, a deflection gauge attached to the elongate frame between the first removable reference assembly and the second removable reference assembly, and wherein the deflection gauge engages and measures a deflection of the surface relative to the first removable reference assembly and the second removable reference assembly.