Work Tool Vibration Reducing Mechanism with Reciprocating Counterweight
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Solution Overview
Problem
Existing work tools do not adequately reduce vibration, necessitating further improvement in vibration reduction mechanisms.
Innovation Solution
A work tool with a vibration reducing mechanism that includes a dynamic vibration reducer with an elastic member and a weight, where the weight is reciprocated by a connecting member driven by the swinging motion of a swinging member, effectively reducing vibration through direct and forced reciprocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a dynamic vibration reducer with a weight and elastic members is used, then vibration reduction is achieved to a certain extent, but further improvement is desired in the vibration reduction mechanism
Solution Approach 1:
The patent applies the counterweight principle by introducing a weight member that reciprocates in opposition to the vibration caused by the swinging member. The weight is connected to the swinging member through a connecting member, creating a counterbalancing system that reduces the net vibration transmitted to the body. This directly addresses the contradiction by providing effective vibration reduction through a relatively simple counterweight mechanism.
Solution Approach 2:
The patent implements dynamics by making the weight member reciprocate in response to the swinging motion rather than being statically fixed. The connecting member allows the weight to dynamically adjust its position and motion in opposition to the vibration, enabling the system to adaptively reduce vibration across different operating conditions while maintaining a simple overall structure.
2Object-affected harmful factors
If the weight is forcibly driven by reciprocating movement of an elastic member, then vibration reduction is achieved, but the mechanism requires further improvement for enhanced effectiveness
Solution Approach 1:
The patent merges the functions of the elastic member and the connecting member into a integrated system. The connecting member serves dual purposes: it connects the weight to the swinging member while also facilitating the forced reciprocating motion. This consolidation simplifies the manufacturing process by reducing the number of separate components and assembly steps required, while maintaining effective vibration reduction through the forced reciprocation mechanism.
3Device complexity
If a simple vibration reduction mechanism is used, then device complexity is low, but vibration reduction effectiveness is insufficient
Solution Approach 1:
The patent employs a counterweight mechanism where a weight member reciprocates in opposition to the vibration generated by the swinging member. By connecting the weight to the swinging member through a connecting member, the system creates a counterbalancing effect that reduces the net vibration transmitted to the body, achieving effective vibration reduction without requiring complex multi-component systems.
Solution Approach 2:
The system achieves effective vibration reduction by making the weight member dynamically reciprocate in response to the swinging motion. This dynamic response allows the vibration reduction mechanism to adapt to varying operating conditions and vibration frequencies, enhancing effectiveness while maintaining relative simplicity in the overall mechanism design.
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 mechanism effectively reduces vibration in the work tool by forcibly reciprocating the weight, enhancing the vibration reduction capability and allowing for various configurations to suit different tools.
Implementation Method 1
a dynamic vibration reducer having an elastic member (240) and a weight (230) which is biased by the elastic member and which is reciprocatable
Implementation Method 2
a connecting member (250) that connects the weight (230) and the swinging member (125) and that directly and forcibly reciprocates the weight (230) via the connecting member (250) by swinging of the swinging member (125)
Data Source
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AI summary
[Object] To provide a rational technique in a work tool having a mechanism for reducing vibration. [Solution] A vibration reducing mechanism 200 provided to a work tool 100 includes a dynamic vibration reducer 210 having a weight 230 that is biased by an elastic member 240 and that is reciprocatable, and a connecting member 250 that connects the weight 230 and a swinging member 125 for driving a tool accessory driving mechanism, and the vibration reducing mechanism 200 reciprocates the weight 230 via the connecting member 250 by swinging of the swinging member 125.