Radius Measuring Tool V-Notch Wedge Design
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Solution Overview
Problem
Existing radius measuring tools require access to diametrically opposite sides of an article, are complex, and necessitate calculations or conversion tables for accurate measurements, making them difficult to use and prone to recalibration errors, especially when measuring partial or non-cylindrical curves.
Innovation Solution
A radius measuring tool with a V-notch design and a movable wedge that intersects the notch at an angle, allowing simultaneous contact with a circular curve at three equally spaced positions, providing direct measurement of the radius without needing access to opposite sides or calculations, and featuring increased probe movement for enhanced accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a Y-shaped device with a 60 degree angle is used, then mathematical calculations are simplified, but the device cannot measure curves that do not fit within the yoke and requires frequent recalibration
Solution Approach 1:
The device employs a movable probe that can dynamically adjust its position along the curved surface. The probe moves from an initial position where it contacts the curve at two points to a final position where it contacts the curve at three points, allowing the device to adapt to various curve radii without requiring recalibration or complex calculations.
Solution Approach 2:
The invention changes the geometric parameters of the measurement setup by allowing the probe to move to different positions on the curved surface. This enables the device to measure curves with various radii by adjusting the probe's position rather than requiring different fixed geometric configurations.
2Volume of moving object
If the probe movement is minimal, then the device structure is compact, but accurate measurement becomes difficult and requires frequent recalibration
Solution Approach 1:
The probe is designed to move dynamically along the curved surface from an initial position to a final position. This movement allows the probe to engage with the curve at three distinct points, providing sufficient travel distance for accurate measurement while maintaining a compact device structure.
Solution Approach 2:
The invention replaces complex mechanical calculation systems with a direct mechanical measurement approach. The probe's movement along the curved surface directly provides the measurement data through geometric relationships, eliminating the need for frequent recalibration and complex computational adjustments.
3Ease of manufacture
If Yoke type devices are used, then diameter measurement is possible, but access to diametrically opposite sides is required which is not always accessible
Solution Approach 1:
The measurement function is segmented into two independent contact points on the curved surface. Instead of requiring simultaneous access to diametrically opposite sides, the device uses two separate contact points that can be accessed from one side of the object, making the measurement process more versatile and easier to operate.
Solution Approach 2:
The invention inverts the traditional approach by not measuring from diametrically opposite sides but rather from a single accessible side. The probe contacts the curved surface at two points that can be reached from one direction, eliminating the need for access to opposite sides of the object.
4Measurement precision
If conversion tables or calculations are required, then measurement accuracy can be maintained, but device complexity and difficulty of use increase
Solution Approach 1:
The device performs self-measurement through direct geometric relationships. The probe's movement along the curved surface automatically provides the measurement data through the geometric configuration of the device itself, eliminating the need for external conversion tables or complex calculations.
Solution Approach 2:
The invention replaces mathematical calculation systems with direct mechanical measurement. The geometric relationships built into the device's structure allow for direct reading of measurements without requiring conversion tables or complex computations, simplifying operation while maintaining accuracy.
Data Source
AI summary
A tool for measuring an object having a circularly curved surface provides a generally rectilinear body defining a V notch having two converging sides meeting at an apex and an angulated wedge track. A wedge movable along the wedge track and across the V notch intersects a bisector of the V notch at an angle other than perpendicular. Sides of the V notch and a measuring edge of the wedge simultaneously contact the circular curve at three equally spaced apart positions along the circumference of the circular curve. Measuring indicia on the body adjacent the wedge track allows determination of the lateral movement of the wedge along the wedge track. The distance the wedge moves on the wedge track is equal to the radius of the circular curve.