Rolling Plate Assembly With Cutting Guide to Reduce Saw Kickback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional portable power cutting tools face issues with friction and accuracy due to heavy, unstable attachment plates, leading to increased user effort and the risk of kick-back, which can cause injuries.
Innovation Solution
A rolling plate assembly made from injection molded fiber enriched plastic with removable wheels and a cutting guide, providing improved traction, stability, and ease of use by allowing the tool to roll smoothly on the workpiece while reducing torsional rotation and kick-back.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a heavy flat attachment plate is used, then the cutting tool has stable support, but the user effort increases and accuracy decreases due to friction and side-to-side sliding
Solution Approach 1:
The patent replaces the flat attachment plate with rolling elements (wheels or ball bearings) that convert sliding friction into rolling friction. The curved surface of the wheels allows them to roll along the workpiece, significantly reducing the friction force and user effort required to move the cutting tool while maintaining stability through proper wheel configuration and spacing.
Solution Approach 2:
The patent substitutes the traditional flat plate mechanical contact system with a rolling contact system. This mechanical substitution transforms the interaction between the attachment device and workpiece from sliding friction to rolling friction, thereby reducing the force required to overcome resistance and improve ease of operation.
2Stability of the object's composition
If a heavy flat attachment plate is used, then the cutting tool has stable support, but cutting accuracy decreases due to side-to-side sliding motion
Solution Approach 1:
The rolling wheels replace the flat plate to eliminate side-to-side sliding motion. The circular geometry of the wheels constrains movement to the rolling direction only, preventing lateral deviation and improving cutting accuracy while maintaining forward stability through proper wheel spacing and configuration.
Solution Approach 2:
The patent replaces the sliding mechanical system with a rolling mechanical system that inherently prevents side-to-side motion. This substitution eliminates the source of inaccuracy (lateral sliding) while preserving the stabilizing function through the rolling contact mechanism.
3Device complexity
If a conventional flat plate is used, then the structure is simple, but kick-back risk increases due to unstable frictional binding
Solution Approach 1:
The rolling wheels provide stable, predictable contact with the workpiece through their circular geometry, eliminating the unstable frictional binding that causes kick-back. The rolling motion maintains consistent contact force and direction, preventing the blade from veering off course and binding with the workpiece.
Solution Approach 2:
The patent substitutes the unstable sliding friction system with a stable rolling friction system. This mechanical substitution provides consistent and predictable contact forces that prevent blade veering and kick-back, significantly improving safety while the added complexity remains minimal.
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 solution significantly reduces user effort, enhances cutting accuracy, and minimizes the risk of kick-back by providing a stable and smooth rolling motion, allowing for repeated precise cuts without the need for repeated measurements.
Implementation Method 1
a frame assembly formed from a single piece of injection molded fiber enriched plastic which facilitates strong weight and torsional stress memory
Implementation Method 2
facilitates the ease and safety of handling the portable power cutting tool during the operation of the tool
Data Source
AI summary
The present invention is an attachable rolling plate assembly which can be attached as a single unit to a portable cutting tool to facilitate the safe rolling movement of the portable cutting tool on the workpiece. The invention comprises a frame assembly formed from a single piece of molded material such as fiber enriched high-impact nylon having a pair of oppositely disposed longitudinal sidewalls with damping strips extending therefrom, and a flat base portion having an opening through which a saw blade of a power saw extends. The plate has front and rear fastening members to retain a plate of a power cutting saw onto the rolling plate assembly. The invention also includes a cutting guide assembly to facilitate a straight cut, reduce torsional rotation of the saw blade and reduce kickback of the saw.