Angled Predrill Guide for Accurate Deck Board Fastener Holes
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Solution Overview
Problem
The installation of decking boards is time-consuming and requires accurate placement of pre-drill holes, which is difficult without a suitable guide tool, especially considering the spacing of fasteners off the edges of the decking board.
Innovation Solution
A predrill guide tool with a horizontal and vertical planar member, angled drill guide, and keels to ensure accurate hole placement relative to the deck board, allowing drilling through both sides of the groove and below, with features like apertures for debris escape and rib support for strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a guide tool is used to achieve accurate hole placement, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The guide tool is divided into distinct functional segments: a body portion for general positioning, a vertical planar member for groove engagement, keels for lateral positioning, and an angled drill guide for hole orientation. Each segment performs a specific function, allowing the overall tool to achieve high precision through coordinated simple components rather than a single complex structure.
Solution Approach 2:
The vertical planar member acts as an intermediary element that bridges the gap between the deck board groove and the drill bit. By engaging the groove and providing a reference surface, it mediates the positioning process, enabling accurate hole placement without requiring the drill operator to directly measure and calculate positions.
2Manufacturing precision
If multiple contact points are used to ensure accurate hole location, then manufacturing precision is improved, but ease of operation deteriorates
Solution Approach 1:
The guide tool employs self-aligning features where the keels automatically position themselves within the groove boundaries, and the vertical planar member naturally seats against the groove face. This self-service positioning mechanism eliminates the need for manual alignment adjustments, allowing multiple contact points to work together automatically when the tool is simply placed against the deck board.
3Ease of manufacture
If the guide tool structure is simplified, then ease of manufacture is improved, but manufacturing precision deteriorates
Solution Approach 1:
The guide tool achieves precise hole placement by controlling critical parameters: the angled drill guide is set at a specific angle to account for the desired hole orientation relative to the deck board surface, the keels are positioned at precise intervals to match the groove width, and the vertical planar member height is optimized for proper groove engagement. These parameter specifications allow the simple structure to deliver consistent precision.
Data Source
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AI summary
Predrill guide tools are disclosed which include a body having a vertical planar member with a front side and a back side, a horizontal planar member with a top side, a bottom side and a tapered end, and an angled drill guide with a front face positioned within a vertical plane; two or more ribs extending from a top side of the horizontal planar member, and one or more keels extending vertically from the bottom side of the horizontal planar member. Methods of using the predrill guide tools to drill holes into deck boards for use with deck clips are also disclosed.