Oscillating Insert Tool Inertia Compensation
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Solution Overview
Problem
Existing oscillating insert tools for hand power tools experience vibrations and noise due to differing mass moments of inertia, which affect operating comfort and precision.
Innovation Solution
A system with oscillating insert tools that include a compensating unit to adapt the mass moment of inertia, either through mass reductions or additional masses, ensuring equal or closely matched inertia between tools, allowing for precise vibration compensation and reduced noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If oscillating insert tools with different working means are used, then versatility and adaptability are improved, but vibrations and noise increase due to differing mass moments of inertia
Solution Approach 1:
The patent applies parameter changes by modifying the mass moment of inertia parameter of oscillating insert tools through compensating units. Different insert tools (saw blades, sanding discs, grinding wheels) have different inherent mass moments of inertia, but by adding compensating masses or adjusting density distributions, their effective mass moments of inertia are standardized to match the vibration compensating unit's calibration, thereby reducing vibrations while maintaining versatility across different tool types
Solution Approach 2:
The patent employs counterweight principles through vibration compensating units that contain compensating masses positioned to counterbalance the mass moment of inertia of the oscillating insert tools. These compensating masses create opposing inertial forces that cancel out the harmful vibrations generated during oscillation, allowing different tool types with varying mass distributions to operate with reduced vibrations
2Adaptability or versatility
If oscillating insert tools with different mass moments of inertia are used, then functional diversity is improved, but precision and operating comfort deteriorate due to vibrations
Solution Approach 1:
The system changes the mass moment of inertia parameter of different insert tools by incorporating compensating units with specific mass distributions. This standardization ensures that despite functional differences (cutting, sanding, grinding), all tools present a consistent inertial profile to the power tool, enabling precise control and consistent performance across diverse applications
Solution Approach 2:
The vibration compensating unit creates a standardized inertial model that is replicated across different insert tool configurations. By copying this standardized mass moment of inertia profile onto various tool types through compensating masses, the system ensures that each tool behaves predictably in terms of vibrations, thereby maintaining precision across functionally diverse tools
3Object-generated harmful factors
If compensating units are added to oscillating insert tools, then vibrations are compensated, but device complexity increases
Solution Approach 1:
The patent merges the compensating units with the existing structure of oscillating insert tools by integrating them into the tool body or mounting interface. Rather than adding separate complex vibration cancellation systems, the compensating masses are incorporated directly into the tool assembly, combining the working function and vibration compensation function in a unified structure
Solution Approach 2:
The compensating units are designed to be self-contained and passively functional, requiring no active control systems or additional power sources. The compensating masses automatically counterbalance vibrations through their inertial properties during oscillation, making the vibration compensation self-regulating and eliminating the need for complex electronic controls or adjustment mechanisms
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 system achieves partial or full compensation of vibrations and noise, enhancing user comfort and precision by matching the mass moments of inertia, thereby improving the operating experience.
Implementation Method 1
at least one of the at least two oscillating insert tools has at least one compensating unit, which is provided to adapt, at least substantially, a mass moment of inertia of the at least one oscillating insert tool to a mass moment of inertia of the at least second oscillating insert tool
Data Source
AI summary
The disclosure relates to a system having at least one first oscillation insert tool that is configured to be effectively coupled to an oscillation hand power tool, and at least one second oscillation insert tool that differs from the first oscillation insert tool and is configured to be effectively coupled to the oscillation hand power tool as an alternative to the first oscillation insert tool. At least one of the at least two oscillation insert tools comprises at least one compensating unit for at least substantially adapting a mass moment of inertia of the at least one oscillation insert tool to a mass moment of inertia of the at least one second oscillation tool.