Handheld Power Tool Grip With Slide Switch and Elastic Vibration Isolation
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Solution Overview
Problem
Hand-held power tools face a trade-off between ease of operation and vibration-proofing, where slide-type tools enhance operation but lack vibration reduction, while trigger-type tools provide vibration reduction but decrease ease of operation.
Innovation Solution
A hand-held power tool design featuring a grip with an elastic element between the connecting part and the power tool body, combined with a slide-type operating member that can be slid to switch the motor on and off, allowing for vibration reduction and enhanced ease of operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a slide-type operating member is used to enhance ease of operation, then ease of operation is improved, but vibration-proof structure is lost
Solution Approach 1:
The patent merges the slide-type operating member structure with the vibration-proof elastic element structure into a single integrated connecting part. The operating member is disposed within the connecting part that already contains the elastic element, allowing both ease of operation and vibration reduction to coexist in one component rather than requiring separate mechanisms.
Solution Approach 2:
The elastic element acts as an intermediary between the power tool body and the grip, absorbing vibrations while the operating member provides the slide-type control mechanism. This intermediary structure allows the beneficial effects of both the slide-type operation (ease of use) and the elastic coupling (vibration reduction) to be achieved simultaneously.
2Object-affected harmful factors
If a trigger-type operating member is used to provide vibration-proof structure, then vibration transmission is reduced, but ease of operation is decreased
Solution Approach 1:
Instead of using a trigger-type mechanism that requires continuous pressure maintenance, the patent inverts the approach by using a slide-type mechanism that, when moved to the desired position, is retained there by the structure of the connecting part. This allows the grip to have vibration-proof structure while the user does not need to maintain continuous operating pressure.
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 achieves a vibration-proof grip while maintaining ease of operation by reducing vibration transmission and allowing the operating member to be released after activation, thus alleviating user load and preventing heat exposure to the electrical switch.
Implementation Method 1
The elastic element is disposed between the connecting part and the power tool body and serves to reduce transmission of vibration from the power tool body to the grip
Data Source
AI summary
A power tool includes a grip, a connecting part, an elastic element, an electrical switch and an operating member. The connecting part connects the grip to the power tool body. The elastic element is disposed between the connecting part and the power tool body. The operating member is switched by a user between an energizing position and a de-energizing position. The operating member is retained in the position to which it is switched. The operating member is disposed in the connecting part in such a manner as to be slidable in a direction transverse to the longitudinal direction of the power tool body and to the extending direction of the grip.