Vibration Absorber Integrated in Power Tool Housing
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Solution Overview
Problem
Existing portable power tools experience significant vibrations during operation, leading to user discomfort and potential damage, and existing solutions often require additional components or complex assemblies that increase cost and complexity.
Innovation Solution
A portable power tool design incorporating a vibration absorber device with an absorber spring and mass, integrated into the mechanism housing, which includes a housing cover that fastens the absorber device and protects it from external influences, allowing for effective vibration damping and heat dissipation without additional covers, and featuring a preassembled structural unit for simplified assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a vibration absorber device is added to reduce vibrations, then vibration reduction is improved, but device complexity increases
Solution Approach 1:
The vibration absorber device is integrated into the mechanism housing, merging the vibration reduction function with the existing structural housing. This eliminates the need for separate vibration isolation components and reduces overall device complexity while maintaining effective vibration absorption.
Solution Approach 2:
The mechanism housing serves multiple functions: it provides structural support, protects internal components, and acts as the mounting structure for the vibration absorber device. This multi-functionality reduces the need for additional components and simplifies the overall device design.
2Object-affected harmful factors
If additional components are added for vibration absorption, then vibration reduction is improved, but manufacturing cost increases
Solution Approach 1:
By integrating the vibration absorber device into the existing mechanism housing, the patent eliminates the need for separate housing components and fastening systems. This merging of functions reduces the total number of parts that need to be manufactured and assembled, thereby lowering manufacturing costs.
Solution Approach 2:
The mechanism housing itself serves as the mounting structure for the vibration absorber device, eliminating the need for additional fastening components. The housing's own structural features are utilized to provide attachment points, making the system self-sufficient and reducing manufacturing requirements.
3Ease of manufacture
If the absorber device is exposed to external influences, then assembly is simplified, but reliability decreases due to wear and contamination
Solution Approach 1:
The vibration absorber device is merged with the mechanism housing to form an integrated assembly. This integration automatically provides protection against external influences such as contamination and mechanical damage, while maintaining simple assembly procedures. The housing itself serves as the protective enclosure.
Solution Approach 2:
The mechanism housing provides beforehand protection for the vibration absorber device against external influences. By designing the housing to enclose and protect the absorber device from the outset, the patent prevents contamination and damage before they can occur, ensuring long-term reliability.
4Reliability
If a housing cover is added to protect the absorber device, then reliability is improved, but device complexity and cost increase
Solution Approach 1:
The protective housing cover function is merged with the mechanism housing itself. The existing housing structure serves dual purposes: as the structural framework and as the protective enclosure for the vibration absorber device. This eliminates the need for additional protective covers and reduces device complexity.
Solution Approach 2:
The mechanism housing is designed to perform multiple functions simultaneously: providing structural support, enabling heat dissipation, and protecting the vibration absorber device from external influences. This multi-functionality eliminates the need for separate protective components.
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 design results in a robust, compact, and cost-effective power tool with reduced vibrations, improved heat management, and minimized wear, enabling efficient vibration damping and thermal coupling while maintaining structural integrity.
Implementation Method 1
at least one absorber spring, which, in at least one operating state, effects an acceleration force on the absorber mass
Implementation Method 2
the absorber spring is realized as a helical compression spring
Implementation Method 3
an absorber mass, which, in at least one operating state, reduces the vibration through an inertia
Implementation Method 4
the housing cover is provided to close an opening in the other element of the mechanism housing, in particular an opening provided for mounting the drive mechanism
Implementation Method 5
at least one fastening means that, in at least one operating state, at least partially fastens the vibration absorber device
Data Source
AI summary
A hand-power tool includes at least one oscillation-damping device that has at least one damping spring and a damping mass. The hand-power tool also includes a drive mechanism and a mechanism housing. The mechanism housing has a housing cover which is provided for closing a chamber in which the drive mechanism lies, and the housing cover has at least one fixing mechanism that at least partially fixes the oscillation-damping device in at least one operating state.