Power Tool Anti-Vibration Mechanism and Safety Lock
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Solution Overview
Problem
Power tools face issues with vibration transmission, occupational safety, noise reduction, and heat exhaustion, affecting operator efficiency and safety during cutting and trimming operations.
Innovation Solution
The power tool incorporates an anti-vibration mechanism using resilient members like rubber to absorb vibrations, a handle rotation lock and trigger lock mechanism for safety, a noise reduction air intake system with an extended air path and filter, and a forward-pointing exhaust outlet to direct exhaust away from the cutting area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the power tool operates with cutting blades, then cutting function is achieved, but vibration forces are generated and transmitted to the handle
Solution Approach 1:
The patent introduces an intermediate mounting structure with resilient members (springs, rubber elements, or viscoelastic materials) positioned between the main body and handle. This intermediary structure absorbs and dampens vibration forces generated by the cutting blades, preventing their transmission to the handle while maintaining the structural connection necessary for tool operation.
2Ease of operation
If the handle is made rotatable for ergonomic adjustment, then ease of operation is improved, but safety risks increase due to unintended rotation during activation
Solution Approach 1:
The patent implements a dynamic handle system that can rotate between fixed angular positions during non-operational states for ergonomic adjustment, but locks into a fixed position during operational states to prevent unintended rotation. The locking mechanism engages automatically when the power tool is activated, transforming the handle from a movable to a fixed state to ensure safety.
3Device complexity
If the air intake path is shortened for compact design, then device complexity is reduced, but noise from air intake increases
Solution Approach 1:
The patent extends the air intake path in the longitudinal direction of the power tool, utilizing the available length along the tool's axis rather than expanding the cross-sectional area. This allows for a longer, quieter air intake path within a compact overall form factor, reducing noise while maintaining a simple structural design.
4Device complexity
If the exhaust outlet is positioned at the rear for simple design, then device complexity is reduced, but heat exhaustion affects the operator
Solution Approach 1:
The patent inverts the conventional exhaust outlet positioning by placing it at the front of the main body rather than at the rear. This causes the exhaust to be directed forward, away from the operator's hands and body, reducing heat exposure and improving operator comfort while maintaining a simple exhaust system 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 solution effectively reduces vibration and noise, enhances operator safety by restricting handle rotation during activation, and directs exhaust gases away from the cutting area, improving overall user experience and tool longevity.
Implementation Method 1
an anti-vibration mechanism arranged to reduce the transmission of any vibration forces generated by the main body to the at least one handle during the operation of the power tool
Implementation Method 2
the anti-vibration mechanism comprises an intermediate mounting structure having a resilient member
Implementation Method 3
an air intake mechanism provided on the main body and arranged to reduce a noise generated by an intake of air
Implementation Method 4
a locking mechanism arranged to restrict a rotational movement of the handle with respect to the main body and/or the power tool from being activated in response to an actuation of the actuator
Data Source
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AI summary
A power tool for cutting or trimming is provided. The power tool comprises a main body (110,210,310,410) having at least one handle (123,130,230) arranged to be grasp by a user during the operation of the power tool, an anti-vibration mechanism (100,150) arranged to reduce the transmission of any vibration forces generated by the main body to the at least one handle during the operation of the power tool, a locking mechanism (200) arranged to selectively restrict a rotational movement of the handle with respect to the main body and/or the power tool from being activated in response to an actuation of an actuator, a noise reduction engine air-intake mechanism (300) and a forward pointing exhaust outlet (400) arranged to discharge exhaust generated by a combustion engine (440). The power tool is improved and provides easy, practical and secure presentation and good user experience.