Pivotable Foot Platform for Standing Lawn Mower
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Solution Overview
Problem
Standing ride-on lawn mowers require an efficient and ergonomic foot platform arrangement that allows for easy operation, deck height adjustment, and storage, while minimizing operator discomfort due to vibrations and dynamic stresses.
Innovation Solution
A foot platform assembly with pivotable operator support, integrated transaxles, and a deck lift mechanism that includes a foot lever and pivot limiting assembly with dampening members, allowing the operator to pivot the platform between operating and stored positions, and adjust the cutting deck height using a foot-actuated lever.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator platform is made pivotable between operating and stored positions, then storage efficiency and ease of operation are improved, but structural complexity and potential vibration transmission increase
Solution Approach 1:
The operator platform is designed to be pivotable between an operating position and a stored position, allowing dynamic reconfiguration of the mower. This enables the platform to adapt between different operational states (mowing vs. storage) without requiring separate structures, thereby improving ease of operation while managing complexity through a single movable component system.
2Object-affected harmful factors
If dampening members are added to absorb vibrations, then operator comfort is improved, but device complexity and weight increase
Solution Approach 1:
Dampening members are integrated into the platform structure to absorb vibrations and dynamic stresses before they can affect the operator. These dampening elements are positioned to counteract harmful vibrations during operation, improving operator comfort by proactively mitigating the harmful effects rather than reacting to them.
3Ease of operation
If the deck lift mechanism is made foot-actuated, then ease of operation is improved, but the force required and mechanical complexity increase
Solution Approach 1:
The deck lift mechanism is designed to be actuated by the operator's foot, allowing the system to utilize the operator's own body weight and leg strength to perform the lifting action. This self-service approach eliminates the need for separate power sources or complex actuation mechanisms, improving ease of operation by directly leveraging the operator's physical capabilities.
4Adaptability or versatility
If the platform is made pivotable for storage, then storage efficiency is improved, but reliability and vibration resistance decrease
Solution Approach 1:
The pivotable platform design allows the mower to efficiently transition between operating and stored configurations, maximizing storage efficiency. The dynamic nature of the platform is managed through robust pivot mechanisms and dampening elements that maintain reliability during both operational states, ensuring that the ability to reconfigure does not compromise structural integrity or vibration resistance.
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
Enhances operator comfort by absorbing vibrations and dynamic stresses, facilitates easy operation and storage, and ensures efficient propulsion and cutting deck height adjustment.
Implementation Method 1
the dampening members are made of a resilient material to absorb dynamic stresses and vibrations during operation of the lawn mower to improve the comfort of the operator
Data Source
AI summary
A pivotable operator support platform is provided for a standing lawn mower. The pivotable operator support platform is part of a platform assembly. A deck lift foot lever is actuable by the foot of an operator on the support platform to raise the cutting deck of the lawn mower. The deck lift foot lever is pivotable with the operator support platform, and about the same pivot axis, between an operating position and a stored position. A latching assembly automatically deflects as the operator support platform is moved into the stored position, and is biased to engage a latch pin to retain the operator support platform in the stored position.