Power Tool Handle Bearing for Vibration-Damped Socket Mounting
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Solution Overview
Problem
Existing hand-held power tools face challenges in achieving cost-effective and reliable electrical connection sockets that effectively dampen vibrations and allow for relative movement, which are crucial for efficient energy transfer and tool stability.
Innovation Solution
The handle components, specifically thermoplastic elastomer handle shells and cover, serve as dual-purpose bearings for the electrical connection socket, forming a circular cylindrical cavity for secure insertion and providing vibration-damping properties, enabling relative movement and decoupling from the tool housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate bearing component is used for the electrical connection socket, then the reliability and vibration damping are improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the bearing function into the handle shell itself, which simultaneously serves as both the structural handle component and the bearing for the electrical connection socket. This integration eliminates the need for separate bearing components while maintaining vibration damping and secure mounting functions.
Solution Approach 2:
The handle shell is designed to perform multiple functions: providing structural support for the handle, damping vibrations, and serving as a bearing for the electrical connection socket. This multi-functionality reduces the overall number of components needed in the device.
2Object-affected harmful factors
If multiple separate components are used for the handle, then the vibration damping and secure mounting are improved, but the manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent combines the bearing function and vibration damping function into the handle shell itself, reducing the number of separate components. This integration simplifies manufacturing and assembly processes while maintaining effective vibration damping through the elastomeric material properties of the handle shell.
3Stability of the object's composition
If the electrical connection socket is rigidly fixed to the housing, then the structural stability is improved, but the vibration decoupling and energy transfer efficiency worsen
Solution Approach 1:
The patent changes the mechanical properties of the handle shell by using an elastomeric material that provides both structural stability and vibration decoupling. The material's inherent elasticity allows it to maintain secure mounting while absorbing vibrations and enabling relative movement, thus improving energy transfer efficiency without sacrificing structural integrity.
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
This configuration enhances the reliability and cost-effectiveness of hand-held power tools by ensuring secure electrical connections while effectively dampening vibrations, improving tool stability and energy transfer efficiency.
Implementation Method 1
the handle shells and/or the handle cover serve as a bearing or bearing component of the electrical connection socket... The components 2a, 2b, 2c each have vibration-damping properties and enable a relative movement of the electrical connection socket 1 to a housing 4 of the power tool 100
Data Source
Figure 1~2
AI summary
Hand-held power tool (100) comprising: - an electrical socket (1), and - a handle (2) for handling the power tool (100), wherein the handle consists of several components (2a, 2b, 2c), - wherein at least one component (2a, 2b, 2c) of the handle (2) serves as a bearing for the electrical socket (1).