Pole-Attached Power Tool Motor Placement
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Solution Overview
Problem
Pole-attached power tools are unwieldy and difficult to operate due to the length of the pole, weight, and limited power of gasoline or electric motors, making them challenging to use in hard-to-access environments.
Innovation Solution
A pole-attached power tool system with a more powerful electric motor positioned proximate to the handle, a larger battery, and a longer drivetrain, which improves balance and stability, allowing for better control and power performance comparable to gas-powered tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a longer pole is used to extend user reach, then the tool can access hard-to-reach environments, but the tool becomes unwieldy and difficult to operate
Solution Approach 1:
The patent positions the electric motor proximate to the handle (first end of pole) rather than at the tool end (second end), changing the spatial dimension of motor placement. This repositioning shifts the weight distribution and balance point along the pole's length, improving handleability while preserving the extended reach capability of the long pole configuration.
2Power
If a more powerful motor is used to increase power output, then the tool achieves gas-powered performance levels, but the weight and balance of the tool deteriorates
Solution Approach 1:
The patent relocates the electric motor from the traditional tool-end position to the handle-end position along the pole's length. This spatial repositioning allows a more powerful motor to be installed without concentrating excessive weight at the far end, thereby maintaining better balance and weight distribution while achieving gas-powered performance levels.
Solution Approach 2:
By positioning the motor proximate to the handle, the patent creates a counterbalancing effect where the motor's weight near the user's hand offsets the weight of the tool head at the far end of the pole. This counterweight arrangement improves overall tool balance, making it easier to maneuver despite the increased power output.
3Loss of energy
If the motor is positioned near the tool end to reduce drivetrain length, then power transfer efficiency improves, but the tool becomes unbalanced and harder to control
Solution Approach 1:
The patent changes the spatial dimension of motor placement from the tool end to the handle end of the pole. This repositioning accepts a longer drivetrain as a trade-off to achieve superior balance and control, with the motor's strategic location near the user's hand providing better maneuverability that compensates for the increased drivetrain length.
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 system provides improved handleability and power performance, allowing users to easily maneuver the tool in tight spaces and maintain balance, reducing user fatigue and increasing efficiency.
Implementation Method 1
an electric motor disposed proximate to the first end of the pole... the drive member mechanically coupled with the electric motor and the power tool to transfer power generated by the electric motor to the power tool
Data Source
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AI summary
Embodiments of a pole-attached power tool system, and related methods, are disclosed herein. In some embodiments, a pole-attached power tool system may include a pole having a first end, a second end, and an interior region; a handle disposed proximate to the first end of the pole; an electric motor disposed proximate to the first end of the pole; a power tool disposed proximate to the second end of the pole; and a drive member disposed within the interior region, the drive member mechanically coupled with the electric motor and the power tool to transfer power generated by the electric motor to the power tool.