Portable Drill Guide With Self-Tightening Depth Stop
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Solution Overview
Problem
Woodworkers face difficulties in drilling precise, straight holes in workpieces using portable power drills, as existing assisting devices require multiple tools and increase project time and effort.
Innovation Solution
A portable drill guide with a base plate, guide columns, a chuck carrier, depth stopper, and lock knobs that allows for accurate alignment and self-tightening, reducing the need for multiple devices by enabling precise hole drilling with adjustable depth and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple assisting devices are used to drill precise holes at different locations and dimensions, then drilling precision is improved, but device complexity and project time increase
Solution Approach 1:
The drill guide is designed as a universal assisting device that can drill holes of various dimensions at different locations on workpieces. The guide body includes multiple guide openings that accommodate different drill bits, and the positioning mechanism can be adjusted to target different positions on the workpiece, eliminating the need for multiple specialized assisting devices
Solution Approach 2:
The drill guide incorporates adjustable and reconfigurable components, including removable guide openings, adjustable positioning mechanisms, and interchangeable drill bits. This dynamic design allows the single device to adapt to different drilling requirements (different hole sizes, depths, and positions) rather than requiring fixed, specialized devices for each scenario
2Manufacturing precision
If multiple assisting devices are used for different hole configurations, then drilling precision is improved, but project completion time increases
Solution Approach 1:
The drill guide serves multiple drilling functions within a single device, allowing woodworkers to complete various hole-drilling tasks without switching between multiple assisting devices. The guide body contains multiple guide openings for different drill bit sizes, and the positioning system can be reconfigured for different workpiece locations, consolidating what would otherwise require multiple specialized tools into one versatile device
3Ease of operation
If a portable drill is used without guidance, then ease of operation is improved, but drilling precision deteriorates
Solution Approach 1:
The drill guide acts as an intermediary device between the portable drill and the workpiece. It provides a stable guide body with precise guide openings that direct the drill bit along the desired path, while the positioning mechanism ensures accurate placement on the workpiece. This intermediary structure compensates for the lack of inherent guidance in portable drills, enabling precise drilling without sacrificing the ease of operation and portability
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 drill guide simplifies the drilling process by reducing the number of tools needed and minimizing project time, allowing for accurate, straight hole drilling with adjustable depth and alignment.
Implementation Method 1
a tapered portion defined in the first guide column... wherein the tapered portion enables self-tightening of the depth stopper about the first guide column
Implementation Method 2
The tapered portion further comprises a first diameter defined at a first end of the tapered portion; and a second diameter defined at a second end of the tapered portion that is greater than the first diameter
Data Source
AI summary
A drill guide that includes associated components and various methods of use herein. The drill guide includes a first guide column and a second guide column provided on a base plate. The drill guide also includes a chuck carrier adapted to operatively receive a drill chuck of a portable drill. The chuck carrier is operably engaged with the first guide column and the second guide column, and the chuck carrier is linearly moveable along the first guide column and the second guide column between a return position and a plunging position relative to the base plate. The drill guide also includes a tapered portion defined in the first guide column. The drill guide also includes a depth stopper that is operably engaged with the first guide column, wherein the tapered portion enables self-tightening of the depth stopper about the first guide column.