Portable Drill Guide With Self-Tightening Depth Stop
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Solution Overview
Problem
Woodworkers face challenges in drilling precise, straight holes in workpieces using portable power drills, as existing assisting devices require multiple tools and increase project time and effort due to the need for device switching.
Innovation Solution
A multifunctional drill guide with a base plate, guide columns, a chuck carrier, depth stopper, and lock knobs that allows for precise alignment and self-tightening, reducing the need for multiple devices by enabling the portable drill to drill straight holes accurately at desired locations and depths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple assisting devices are used to drill precise holes, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple previously separate assisting devices into a single integrated drill guide apparatus. The guide columns, depth stopper, lock knobs, and base plate are merged into one unified device that provides alignment, depth control, and positioning functions that previously required multiple separate tools.
Solution Approach 2:
The drill guide is designed as a universal apparatus that can perform multiple functions: guiding the drill bit for precise hole location, controlling drilling depth through the depth stopper, securing the workpiece with clamp arms, and providing rotational adjustment. This multi-functional design eliminates the need for multiple specialized assisting devices.
2Manufacturing precision
If multiple assisting devices are used for different holes, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The drill guide allows the woodworker to set up the apparatus once with the workpiece secured and the drill bit positioned. The guide columns and depth stopper are pre-configured, enabling multiple holes to be drilled with consistent precision without repositioning or switching devices between holes.
Solution Approach 2:
The chuck carrier can rotate along the guide columns to accommodate different hole locations on the workpiece. This dynamic adjustment capability allows the single apparatus to handle multiple drilling positions without requiring multiple fixed assisting devices.
3Device complexity
If a single multifunctional drill guide is used, then device complexity is reduced, but manufacturing precision may worsen
Solution Approach 1:
The drill guide is segmented into distinct functional components: guide columns for alignment, depth stopper for depth control, lock knobs for securing positions, and clamp arms for workpiece holding. Each segment performs its specific function with high precision, and their coordinated operation maintains overall drilling accuracy despite the integrated design.
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 reduces the number of assisting devices needed and minimizes project completion time by allowing for accurate, straight hole drilling with a single tool, enhancing efficiency and reducing the complexity of drilling operations.
Implementation Method 1
The tapered portion enables self-tightening of the depth stopper about the first guide column
Implementation Method 2
The tapered portion enables self-tightening of the depth stopper about the first guide column
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.