One-Hand Steering Linkage for Zero-Turn Mower Control
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Solution Overview
Problem
Existing zero-turn mowers require both hands to operate the left and right steering levers, making it difficult to maneuver around obstacles or consume beverages during mowing.
Innovation Solution
A one-hand controller that interconnects the left and right steering levers, allowing operation with either hand by releasing the brakes and enabling directional control through a single handle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two separate steering levers are used for left and right wheel control, then precise directional control is achieved, but both hands are occupied making it difficult to handle obstacles or beverages
Solution Approach 1:
The patent combines two separate steering levers into a single integrated controller that can operate both left and right wheel controls. This merging allows the operator to control the zero-turn mower with one hand, freeing the other hand for handling obstacles or beverages while maintaining full steering functionality.
Solution Approach 2:
The single controller is designed to perform multiple functions - it can control both left and right steering levers, enabling forward movement, reverse movement, left turns, and right turns. This multi-functional design replaces the need for two separate hand-operated levers while maintaining complete directional control capability.
2Ease of operation
If a single hand controller is used to control both steering levers, then hand availability is improved, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism - a cable linkage system - that connects the single controller to both steering levers. This intermediary translates the operator's single-hand input into coordinated movement of both wheel controls, managing the complexity through a mechanical mediation system rather than requiring complex electronic or hydraulic components.
Data Source
AI summary
A one hand controller for zero turn mowers includes a left steering controller and a right steering controller. The left steering controller mounts to a left steering lever of the mower and includes an angle plate, a linear track, and at least one left-steering-lever fastener. The right steering controller mounts to a right steering lever of the mower and includes a plate body, handle, a latch, and a right-steering-lever fastener. The linear track traverses along a top plate of the angle plate. The left-steering-lever fastener is connected to a bottom plate of the angle plate. The latch is connected to the plate body. The right-steering-lever fastener is rotatably mounted to the plate body. The handle is mounted to the plate body and oppositely positioned to the latch and the right-steering-lever fastener. The latch is slidably engaged within the linear track thus allowing the handle to operate the mower.