Screw Guide With Retainer Clip for Precise Angled Fastener Installation
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Solution Overview
Problem
The installation of long screws in building construction is challenging due to the need for precise angle and position alignment, often requiring guesswork and resulting in increased labor and material costs, especially in elevated and cramped locations where stability is compromised.
Innovation Solution
A fastener guide system comprising a base plate, a guide member that maintains a fastener at a preselected offset angle, and a retainer clip that securely holds the guide in place, allowing for hands-free operation and easy repositioning for consistent and efficient fastener installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If workers manually align fasteners by eyeballing angle and guessing location, then installation can be performed without additional equipment, but installation precision and consistency deteriorate leading to errors and rework
Solution Approach 1:
The guide device is pre-assembled with the base plate, guide member, and retainer clip before installation. The guide member is pre-set at the correct angle relative to the base plate, and the retainer clip is pre-positioned to engage the second board. This preliminary preparation eliminates the need for manual angle measurement and alignment during fastener installation, ensuring consistent precision without requiring complex measurement tools or multiple adjustment steps.
Solution Approach 2:
The guide device acts as an intermediary tool between the worker and the fastener installation process. The guide member provides a physical reference that mediates the angle requirement, while the retainer clip mediates the positioning requirement by engaging the second board. This intermediary device translates the abstract requirements of building codes into concrete physical guides that ensure precise fastener installation without requiring the worker to perform complex calculations or measurements.
2Reliability
If workers install fasteners in elevated cramped locations on ladders, then connection requirements can be met, but installation stability and safety deteriorate
Solution Approach 1:
The guide device is segmented into three main components: the base plate that engages the first board, the guide member that maintains the fastener angle, and the retainer clip that engages the second board. This segmentation allows the device to be compact and easy to handle in elevated locations, while each component performs its specific function to ensure reliable fastener installation. The modular design enables the worker to manipulate the device with one hand if needed, improving ease of operation in cramped spaces.
Solution Approach 2:
The retainer clip is designed to automatically engage the second board when positioned correctly, holding the guide in place without requiring the worker to manually secure it during fastener installation. The base plate provides a stable engagement surface with the first board, and the guide member self-maintains the fastener at the correct angle. This self-service capability reduces the complexity of the installation process and improves ease of operation in difficult-to-reach locations.
3Strength
If multiple fasteners need to be installed with precise angle requirements, then connection strength can be ensured, but installation time and labor costs increase due to rework
Solution Approach 1:
The guide device is pre-configured with the guide member set at the precise angle required by building codes relative to the base plate. The retainer clip is pre-positioned to engage the second board and hold the entire assembly in the correct position. This preliminary setup ensures that every fastener installed using this guide will meet the angle and position requirements, eliminating the need for rework and ensuring consistent connection strength across multiple fasteners, thereby improving productivity.
4Manufacturing precision
If the guide needs to be held manually for alignment during fastener installation, then angle precision can be maintained, but operator fatigue and installation complexity increase
Solution Approach 1:
The retainer clip acts as an intermediary that automatically secures the guide device to the second board when positioned correctly. This eliminates the need for the worker to manually hold the guide in place, allowing both hands to be used for manipulating the fastener and driving tool. The guide member continues to provide precise angle guidance, while the retainer clip handles the positioning and stabilization function, improving ease of operation without sacrificing angle precision.
Solution Approach 2:
The guide device is designed to be self-holding through the retainer clip engagement with the second board. Once the base plate is positioned against the first board and the retainer clip engages the second board, the entire assembly self-secures at the correct angle without requiring continuous manual support. This self-service mechanism maintains angle precision while significantly improving ease of operation by freeing the worker's hands.
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
Enables precise and repeatable installation of fasteners at specific angles, reducing errors and labor costs by ensuring secure connections while allowing for easy reuse of the guide across different installation sites.
Implementation Method 1
the retainer clip includes first and second prongs that resiliently hold the guide in place as the fastener is advanced
Data Source
AI summary
A fastener guide is provided including a base plate that engages a first board, a guide member that maintains an advancing fastener at a preselected offset angle relative to the first board, and a retainer clip that engages a second board that is transverse to the first board. The retainer clip includes first and second prongs that resiliently hold the guide in place as the fastener is advanced at the offset angle, optionally without manual input so that a user can manipulate the fastener and a driving tool instead of holding the guide to align the fastener. A related method of use is provided.