Pivoting Wall Frame Pulling Tool With Angled Claw Engagement
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Solution Overview
Problem
Securing wall frames during construction requires precise alignment and attachment to ensure stability and safety, but traditional methods like tow-nailing are prone to loosening due to temperature and humidity changes, compromising structural integrity.
Innovation Solution
A construction tool with a handle connected to a claw via a pivot, featuring a tooth point angled towards the pivot for resilient engagement with the workpiece, and an anchor for securing to the underlying surface, allowing for stable and flush attachment of wall frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tow-nailing is used to secure wall frames, then initial alignment and attachment are achieved, but the connection loosens over time due to temperature and humidity changes
Solution Approach 1:
The tooth point is designed to be resilient and capable of movement, allowing it to flex with the expansion and contraction of wood during seasonal changes. This dynamic design enables the connection to maintain its gripping force while accommodating natural material movement, preventing loosening over time.
Solution Approach 2:
The tooth angle is specifically optimized to change the direction of pulling force, converting it into a component that presses the tooth point deeper into the workpiece during seasonal expansion, rather than allowing it to work loose as in traditional parallel configurations.
2Device complexity
If the tooth point extends parallel to the claw height axis, then the structure is simple, but pulling force can dislodge the tooth from the workpiece
Solution Approach 1:
The tooth point is configured asymmetrically with respect to the claw height axis, creating a specific tooth angle that provides superior engagement. This asymmetric design ensures that pulling forces press the tooth deeper into the workpiece rather than allowing it to work loose, significantly improving connection strength.
3Manufacturing precision
If precise attention to detail is required for tow-nailing alignment, then flush surface achievement is possible, but the process becomes time-consuming and difficult
Solution Approach 1:
The resilient tooth point configuration enables the tool to self-adjust and maintain proper engagement during use. The design inherently compensates for minor misalignments and maintains consistent contact pressure, reducing the need for precise manual adjustment while achieving reliable results.
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 tool provides a strong and resilient connection that maintains wall frame stability by preventing unintentional disengagement, ensuring proper alignment and safety in construction.
Implementation Method 1
a handle connected to a claw by a pivot for gripping and engaging the workpiece. Pulling the handle away from the workpiece while the claw is engaged with the workpiece and a bottom end of the handle is anchored to the underlying surface pulls the workpiece towards the user
Implementation Method 2
The claw head has at least one tooth point for piercing the workpiece. The tooth point extends from the claw head at a tooth angle, defining a tooth path for directing the tooth point into the workpiece
Implementation Method 3
a bottom end of the handle is anchored to the underlying surface pulls the workpiece towards the user
Data Source
AI summary
A construction tool and method of using the tool. The tool includes a handle connected with a claw by a pivot near the bottom of the handle. The claw engages with a workpiece by penetrating the workpiece with a tooth point that is angled back from the claw toward the pivot. An anchor on the handle may engage with the floor. Pulling the handle away from the workpiece pivots the handle away from the claw at the top of the handle and toward the claw at the bottom. With the claw engaged with the workpiece and the anchor engaged with the floor, pulling the handle pulls the claw toward the handle, pulling the workpiece toward the user. Where the workpiece is a wall frame, the tool may facilitate securing the wall frame with an exterior surface that is flush against a lower-level structure located below the wall frame.