Vibration Reducing Extension System for Handheld Sanders
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Handheld electric sanders cause operator discomfort and fatigue due to vibrations and require awkward positions, especially in hard-to-reach areas, posing risks of injury and reduced productivity, particularly for individuals with vibration-sensitive conditions.
Innovation Solution
An extension system for handheld power tools featuring a collar with vibration-absorbing spacers and an adjustable handle holder that reduces tool vibrations, allowing operators to use sanders in comfortable positions without ladders and minimizing strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a handheld electric sander is used in hard-to-reach areas, then accessibility to work areas is improved, but operator safety and comfort deteriorate due to requiring ladders or awkward positions
Solution Approach 1:
The patent introduces an extension handle that adds a longitudinal dimension to the sander, allowing the operator to reach high or tight spaces without using ladders or awkward positions. The extension handle effectively extends the operational range of the sander in the vertical and horizontal dimensions, resolving the contradiction between accessibility and operator safety.
2Productivity
If a handheld electric sander operates at high RPM, then sanding efficiency is improved, but vibration levels increase causing operator fatigue and injury
Solution Approach 1:
The patent introduces vibration-damping materials as an intermediary element between the sander and the extension handle. These materials absorb and dissipate vibrations generated by the high-RPM motor, preventing them from being transmitted to the operator's hand and arm. This intermediary layer allows the sander to operate at high efficiency while protecting the operator from vibration-induced fatigue and injury.
3Ease of operation
If an extension handle is added to reach high areas, then operator safety is improved, but the extension system becomes more complex
Solution Approach 1:
The patent segments the extension system into distinct functional components: an extension handle for safety, vibration-damping materials for comfort, and a collar assembly for tool attachment. This segmentation allows each component to be optimized independently and simplifies the overall assembly process, reducing the perceived complexity while maintaining safety benefits.
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 stabilizes the power tool, reduces operator fatigue by dampening vibrations, and enables safe, efficient use of sanders in high or tight spaces without the need for ladders, improving accessibility and usability for a broader range of users.
Implementation Method 1
a handle holder that is mounted between two pairs of vibration damping or absorbing spacers
Implementation Method 2
The vibration absorbing spacers may reduce, dampen, or isolate vibrations that might otherwise be transferred from the power tool to the operator through the handle
Data Source
AI summary
A system for attaching a handle such as an extension pole to a power tool such as a hand sander includes a collar, a pressure plate, front and back pairs of vibration absorbing spacers, and a handle holder. The collar has a contact area and two projections extending from the contact area, and the a plate fits onto the projections so that the plate and the contact area of the collar define a space for mounting of a tool. The handle holder extends between the projections and is between the first and second pair of vibration absorbing spacers. A tightening structure may press the plate toward the contact area and compress the first and second pairs of vibration absorbing spacers toward the handle holder.