Snow Thrower Chute Rotation Control Without Releasing the Handle
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Solution Overview
Problem
Existing snow thrower designs require operators to remove their hand from the control surfaces to manually rotate the output chute, disrupting operation and efficiency.
Innovation Solution
A motorized chute rotation system using paddles on the control panel to actuate a DC motor, which drives a gear train to rotate the chute clockwise or counterclockwise, allowing for hands-free operation and efficient chute direction adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual cable-driven lever or auger screw mechanism is used to rotate the chute, then the chute can be rotated, but the operator must remove hand from control surfaces
Solution Approach 1:
The patent replaces the manual mechanical cable-driven lever or auger screw mechanism with an electric motor system. The motor is controlled by buttons on the control panel, allowing electronic actuation of the chute rotation instead of manual mechanical operation. This substitution eliminates the need for the operator to remove their hand from the control surfaces while still achieving chute rotation.
Solution Approach 2:
The patent introduces an electric motor as an intermediary device between the operator's control input (button press) and the chute rotation mechanism. The motor acts as a mediator that converts electrical signals from the control panel into mechanical rotation of the chute, allowing the operator to control chute direction without direct manual manipulation of the rotation mechanism.
2Adaptability or versatility
If manual chute rotation mechanism is used, then chute direction can be changed, but operational efficiency is reduced
Solution Approach 1:
The patent replaces the manual mechanical chute rotation mechanism with an electric motor system controlled via buttons on the control panel. This allows the operator to adjust chute direction without interrupting the snow throwing operation, maintaining continuous productivity while preserving the ability to change chute direction as needed.
Solution Approach 2:
The patent enables continuous snow throwing operation while allowing chute direction adjustments without interruption. The motorized control system allows the operator to make directional changes on-the-fly without stopping the auger or impeller operation, thus maintaining the continuity of the useful action (snow throwing) while providing adaptability in chute direction.
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
Enables seamless and efficient rotation of the chute without interrupting the operator's control of the snow thrower, enhancing usability and operational efficiency by allowing chute direction changes while maintaining hand position on the control surfaces.
Implementation Method 1
a DC motor, which drives a chute rotate gear
Data Source
AI summary
A chute rotation control system for a snow thrower is disclosed. One example embodiment is a chute rotation control system configured to rotate a chute of a snow thrower, comprising: a chute rotation motor coupled to the chute via one or more gears, wherein the chute rotation motor is configured to alternately rotate the chute clockwise and counterclockwise; a left chute control configured to receive one or more left user inputs and to generate a left output signal; a right chute control configured to receive one or more right user inputs and to generate a right output signal; and a motor controller configured to receive the left input signal and the right input signal, to cause the chute rotation motor to rotate the chute counterclockwise in response to the left input, and to cause the chute rotation motor to rotate the chute clockwise in response to the right input signal.