Swingable Diffusion Plate for Grass Distribution
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Solution Overview
Problem
Existing lawn-grass mowing machines face challenges in ensuring unobstructed left-and-right movement of the discharge guiding plate and proper grass accumulation within the collector, with insufficient consideration for the supporting configuration and filling-up sensor integration.
Innovation Solution
A lawn-grass mowing machine design featuring a collector with a slanted introducing guide, a bracket member fixed to the guide, and a fulcrum shaft holding a swingable diffusion guiding plate, allowing for controlled swinging and even grass distribution, along with a filling-up sensor integrated into the system to monitor accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the discharge guiding plate is made to swing left-and-right for grass diffusion, then the grass distribution evenness is improved, but the supporting configuration complexity increases
Solution Approach 1:
The supporting configuration is segmented into a bracket member fixed to the introducing guide and a separate fulcrum shaft held by the bracket. This segmentation allows the discharge guiding plate to swing independently while maintaining a stable support structure, resolving the contradiction between movement capability and structural simplicity.
Solution Approach 2:
The bracket member acts as an intermediary between the fixed introducing guide and the movable fulcrum shaft. It provides a stable mounting point that allows the fulcrum shaft to rotate freely, enabling the discharge guiding plate to swing for even grass distribution without requiring complex support mechanisms.
2Ease of manufacture
If the filling-up sensor is fixed to the collector wall, then the sensor installation is simplified, but the sensing accuracy of grass accumulation is reduced
Solution Approach 1:
The filling-up sensor is mounted on the swingable discharge guiding plate rather than being fixed to the collector wall. As the discharge guiding plate swings to different positions, the sensor dynamically scans different areas of the collector, improving the accuracy of grass accumulation detection while still being relatively easy to install on the plate itself.
3Productivity
If the discharge guiding plate swings with large amplitude, then the grass diffusion efficiency is improved, but the risk of obstruction increases
Solution Approach 1:
The bracket member is positioned and dimensioned to provide optimal local support that allows sufficient swinging amplitude for effective grass diffusion while maintaining clearance from surrounding structures. The fulcrum shaft is held at a specific height and position that maximizes the useful swing range without causing obstruction, balancing diffusion efficiency with movement reliability.
Data Source
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AI summary
A lawn-grass mowing machine, comprising a collector (32) which contains lawn-grass mowed with a mower (5), characterized in that the lawn-grass mowing machine comprises: an introducing guide (70) provided inside the collector (32), which receives mowed-grass; a diffusion guiding plate (73) arranged at one end side of the introducing guide (70); a bracket member (71) fixed to the introducing guide (70); and a fulcrum shaft (72) held by the bracket member (71), wherein the diffusion guiding plate (73) is held by the fulcrum shaft (72), and the diffusion guiding plate (73) is configured so as to be swingable.