Pivotable Steering Wheel Assembly for Riding Mower Storage and Visibility
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Solution Overview
Problem
Existing riding lawn mowers lack improvements in user comfort and operational efficiency, particularly in steering wheel design and control mechanisms, which affect the driving experience.
Innovation Solution
The riding lawn mower features a pivotable steering wheel assembly that switches between working and storage positions, a symmetrical design with adjustable height, and a control mechanism using paddle shifters and a control circuit for motor operation, enhancing user comfort and operational control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the steering wheel assembly is made fixed and permanently positioned, then the user has stable control during operation, but the storage space requirement increases and visibility is reduced
Solution Approach 1:
The steering wheel assembly is designed to be dynamically reconfigurable, allowing it to switch between a working position during operation and a storage position when not in use. This dynamic positioning system resolves the contradiction by providing stable control when needed while minimizing space requirements when the steering function is not active.
2Reliability
If the steering wheel assembly is made fixed and permanently positioned, then the user has stable control during operation, but the user visibility and operating space are reduced
Solution Approach 1:
The steering wheel assembly transitions between fixed and retracted states, providing stable control during operation while improving user visibility and operating space when retracted. This dynamic design allows the system to optimize both control stability and visibility at different operational phases.
3Ease of operation
If the steering wheel assembly is made adjustable in height, then the user comfort is improved, but the device complexity increases
Solution Approach 1:
The steering wheel assembly incorporates height adjustability through a mechanical linkage system that allows vertical positioning. This dynamic adjustment capability improves user comfort by accommodating different operator heights and preferences, while the mechanical design aims to minimize the complexity of the adjustment mechanism.
Data Source
AI summary
A riding lawn mower includes a seat, a chassis configured to support the seat, a cutting assembly mounted to the chassis, a walking assembly configured to drive the riding lawn mower to walk on a plane, and a steering wheel assembly. The steering wheel assembly includes a steering wheel operable by the user and a connecting rod configured to connect the steering wheel and the chassis. The steering wheel assembly further includes a pivot assembly that rotatably connects the connecting rod and the chassis, and the pivot assembly enables the steering wheel assembly to switch between a working position and a storage position. A distance between the steering wheel and the plane when the steering wheel assembly is in the storage position is smaller than a distance between the steering wheel and the plane when the steering wheel assembly is in the working position.