Riding Grass-Mower Side Discharge Cover Lock Mechanism
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Solution Overview
Problem
Conventional riding grass-mowers lack safety features to prevent accidents during grass-mowing operations, as the side discharge cover can be unintentionally pushed up by shocks, potentially causing hazards.
Innovation Solution
A riding grass-mower design featuring a lock member, unlock pin, and unlock releasing member that securely locks the side discharge cover in place, ensuring it does not unintentionally open during operation, and allows for easy maintenance by switching between lock and unlock states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the side discharge cover is made rotatable to guide mowed-grass, then the grass discharge function is improved, but the safety during operation deteriorates due to unintentional opening from shocks
Solution Approach 1:
The lock member is preliminarily positioned to engage with the lock groove before operation begins, creating a pre-established safety mechanism that prevents unintentional opening during grass-mowing operations
Solution Approach 2:
The lock member and lock groove create a preliminary counteracting force against the shock-induced opening tendency, preventing the harmful effect before it can occur during operation
2Reliability
If a lock mechanism is added to prevent unintentional opening, then safety is improved, but the device complexity increases
Solution Approach 1:
The lock mechanism is segmented into independent functional components: a lock member with locking projection, a lock groove with engagement surface, and a spring member. This segmentation allows each component to perform its specific function while keeping the overall structure simple and maintainable
Solution Approach 2:
The spring member automatically urges the lock member to engage with the lock groove, and the mechanism self-locks when the side discharge cover is in the correct position, eliminating the need for complex control systems or additional actuating mechanisms
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 design enhances safety during grass-mowing by preventing accidental opening of the side discharge cover, allowing for secure operation and easy maintenance without the need for additional tools or complex mechanisms.
Implementation Method 1
a lock spring that urges the lock member so that a lock state is realized
Data Source
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AI summary
A riding grass-mower, comprising a mowed-grass guiding plate (200) rotatably provided at a mowed-grass discharging port (111), which guides mowed-grass discharged from the mowed-grass discharging port (111), characterized in that the riding grass-mower comprises a lock member (310) which locks the mowed-grass guiding plate (200) in a posture that is guiding mowed-grass discharged from the mowed-grass discharging port (111).