Integrated Elastic Grip for Power Tool Vibration Absorption
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Solution Overview
Problem
Existing power tool handles are costly to manufacture and lack efficient vibration absorption, particularly when used with diverse types of power tools.
Innovation Solution
A vibration-proof handle design featuring a hollow grip that moves relative to the handle body with an integrated elastic element and outer surface member, formed in one piece using insert molding, which can be adapted to various power tools by adjusting weight and pivot points for optimal vibration absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate components (elastic element and outer surface member) are used in the handle, then vibration absorption and grip comfort are improved, but manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent combines the elastic element and the outer surface member into a single integrated component. The elastic element is formed as an integral part of the outer surface member, eliminating the need for separate assembly steps and reducing manufacturing complexity while maintaining the vibration absorption function and grip comfort benefits of both components
2Ease of operation
If multiple separate components are used in the handle, then functional performance is improved, but manufacturing cost increases
Solution Approach 1:
The elastic element and outer surface member are manufactured as a single integrated component, reducing the total number of parts and assembly operations required. This integration maintains the vibration absorption and grip comfort functions while significantly reducing manufacturing cost through simplified production processes
3Reliability
If the handle is designed for specific power tools, then performance optimization is improved, but adaptability to different tools deteriorates
Solution Approach 1:
The handle is designed with a universal mounting interface that can be adapted to various types of power tools. The integrated elastic element and outer surface member configuration provides standardized mounting features that enable the same handle design to be used across different power tool applications, achieving both performance optimization and broad compatibility
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 reduces manufacturing costs and enhances vibration absorption across different power tools, improving user experience and ease of assembly by integrating the elastic element and outer surface member, allowing for flexible mounting and natural frequency adjustment.
Implementation Method 1
The elastic element applies a biasing force to the grip upon movement of the grip with respect to the handle body when vibration of the power tool is transmitted from the handle body to the grip
Data Source
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AI summary
It is an object of the invention to provide an effective technique for reducing the manufacturing costs of a handle mounted to a power tool. According to the invention, a representative handle may comprise a handle body, a grip, an elastic element and an elastic outer surface member. The grip is hollow-shaped and the handle body is inserted into the grip. The elastic element is disposed between the inner surface of the grip and the outer surface of the handle body to apply a biasing force to the grip upon movement of the grip with respect to the handle body when vibration of the power tool is transmitted from the handle body to the grip. The elastic outer surface member covers the outer surface of the grip. The elastic outer surface member is integrally formed with the elastic element. As a result, the manufacturing costs can be reduced compared with known construction in which the elastic outer surface member and the elastic element are separately formed.