Inverted L Mower Discharge Assembly for Farther Clipping Throw
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Solution Overview
Problem
Existing mowers with inverted U-shaped grass discharge assemblies are costly, inefficient in throwing grass clippings far enough to avoid re-depositing on the lawn, and difficult to store due to their structure.
Innovation Solution
A mower with an inverted L-shaped grass discharge assembly featuring a top and side wall baffle, where the top wall baffle is inclined to guide grass clippings leftwards, reducing energy consumption and enhancing throwing distance, and a rear cover for stability, along with a simple design for easy storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an inverted U-shaped grass discharge assembly is used, then the structure provides stability, but the cost increases and storage becomes difficult
Solution Approach 1:
The grass discharge assembly is divided into separate components: a grass discharge port assembly and a grass discharge channel assembly. These segments can be independently manufactured, assembled, and stored, reducing overall structural complexity while maintaining functional stability during operation.
Solution Approach 2:
The grass discharge channel is designed to be detachable and reconfigurable, allowing it to be removed or adjusted when not in use. This dynamic design enables easy storage and transport while providing stable grass discharge functionality during mower operation.
2Length of moving object
If the top wall baffle is inclined, then grass clippings are thrown farther, but the structure becomes more complex
Solution Approach 1:
The top wall baffle is designed with an asymmetric inclined structure, where the inclination angle varies along the length of the baffle. This asymmetric design optimizes grass clipping trajectory and throwing distance while maintaining manufacturing simplicity through a single-piece molded construction.
3Device complexity
If the grass discharge assembly is designed for easy storage, then material costs and complexity reduce, but throwing distance may decrease
Solution Approach 1:
By segmenting the grass discharge system into detachable components, each piece can be optimized for its specific function. The simplified individual components reduce material costs and assembly complexity, while the coordinated design of segmented parts maintains effective grass throwing distance through optimized airflow channels and baffle geometries.
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 inverted L-shaped design effectively throws grass clippings farther, reduces re-deposition on the lawn, improves safety by lowering throwing speed, and simplifies storage by reducing material costs and complexity.
Implementation Method 1
the top wall baffle is inclined to guide grass clippings leftwards, reducing energy consumption and enhancing throwing distance
Implementation Method 2
the chassis is formed with an airflow channel, and the airflow channel includes a grass discharge port disposed at the rear end of the main machine
Data Source
AI summary
A mower includes a main machine including a mowing element configured to implement a mowing function of the mower and a chassis configured to accommodate at least part of the mowing element, where the chassis is formed with an airflow channel, and the airflow channel includes a grass discharge port disposed at a rear end of the main machine; and a grass discharge assembly configured to implement a grass discharge function. The grass discharge assembly includes a body configured to guide grass clippings out of the grass discharge port; and a connecting portion configured to connect the grass discharge assembly to the main machine. The body includes a top wall baffle and a side wall baffle, and the top wall baffle and the side wall baffle are connected so that the body is basically in an inverted L shape.