Power Tool Distance Measurement for Precise Workpiece Positioning

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Solution Overview

Problem

Current measuring techniques for power tools are cumbersome, time-consuming, and error-prone, requiring operators to manually measure and mark workpieces multiple times before applying the tool, increasing the likelihood of errors and prolonging the process.

Innovation Solution

Integration of a measurement device into the power tool, such as a miter saw, that allows direct positioning of the workpiece relative to the tool by measuring the traveled distance and displaying it via an integrated or remote display, eliminating the need for manual marking and reducing the number of measurements required.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual measurement and marking techniques are used, then measurement can be performed, but the process is time-consuming and requires multiple measurements

Engineering Contradiction:

Improvemeasurement accuracyVSAvoidmeasurement time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The measurement device is integrated directly into the power tool, combining the measurement function with the cutting tool. This allows the workpiece to be measured in situ at the exact location where the cut will be made, eliminating the need for separate marking operations and reducing the number of measurement steps required while maintaining accuracy

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The mechanical measurement and marking process is replaced with an electronic measurement system that uses sensors, processors, and display devices. The system electronically calculates and displays the required cut length directly on the workpiece or for the operator, eliminating the need for manual measurement, calculation, and marking steps

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If manual measurement and marking techniques are used, then measurement can be performed, but the process is cumbersome and error-prone

Engineering Contradiction:

Improvemeasurement accuracyVSAvoidoperation convenience

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The measurement device automatically performs measurements and calculations without requiring the operator to manually measure, calculate, and mark the workpiece. The system self-services by providing direct digital readouts and guidance, reducing operator burden and minimizing human error while maintaining measurement precision

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system provides real-time feedback through display devices that show the operator the measured dimensions and required cut lengths. This immediate feedback allows the operator to verify measurements and make adjustments if needed, reducing errors while simplifying the operation process

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10906110B2Power tool with integrated measurement device and associated methods

Publication Date: 2021.02.02 TRANSFORM SR BRANDS LLC

AI summary

Various embodiments of tools with integrated measurement devices are described. An apparatus may include a tool to be applied to a workpiece, an integrated measurement device in a feed path of the tool, and a controller. The integrated measurement device may generate signals indicative of rotation of a roller in a feed path of a workpiece. The controller may generate, based on the signal, a distance measurement of the workpiece. The distance measurement may indicate a distance between an end of the workpiece and a location of the workpiece to which the tool is to be applied.