Mowing Unit With Targeted Inner-Wall Water Discharge
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Solution Overview
Problem
Existing mower units inefficiently clean the inner walls of the housing due to uneven distribution of cleaning water, leading to incomplete removal of cut grass pieces, especially in areas of high accumulation, and potential damage from debris collision.
Innovation Solution
A mower unit design with a water discharging section positioned between a vertical wall and lateral wall, utilizing branch water feeding pipes to target specific inner wall areas, supported by adjustable members to enhance cleaning efficiency and prevent debris collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If water is discharged from the water discharging section toward the blades during blade rotation, then the inner wall of the housing is cleaned by stirred water, but the cleaning is uneven and cut grass pieces remain at portions of large accumulation
Solution Approach 1:
The water discharging section is divided into multiple discharge ports distributed at different positions within the housing. This segmentation allows water to be discharged toward multiple specific areas simultaneously, ensuring even cleaning distribution and preventing missed spots where cut grass pieces accumulate.
Solution Approach 2:
Each water discharge port is strategically positioned to target specific areas prone to cut grass accumulation, such as corner portions and areas near the blades. This local quality approach concentrates cleaning water precisely where needed rather than distributing it uniformly, improving cleaning effectiveness at critical locations.
2Manufacturing precision
If water discharging is continued to remove accumulated cut grass pieces, then cleaning coverage increases, but the cleaning operation becomes less efficient
Solution Approach 1:
The water discharging section is pre-configured with multiple discharge ports positioned to target high-accumulation areas before the cleaning operation begins. This preliminary arrangement ensures that water is immediately discharged to the correct locations, reducing the need for prolonged discharge operations and improving overall efficiency.
Solution Approach 2:
Multiple water discharge ports enable continuous and simultaneous water discharge toward different areas of the housing inner wall. This continuous action ensures that all targeted areas are cleaned without interruption, maintaining high productivity while achieving complete cleaning coverage.
3Ease of operation
If the water discharging section is positioned to discharge water toward the inner wall face, then targeted cleaning is achieved, but debris collision may damage the water discharging section
Solution Approach 1:
The water discharging section is designed with a protective structure that cushions against debris collision. The discharge ports are positioned and shaped to direct water flow effectively while the surrounding housing structure provides protective buffering, preventing damage from debris thrown by the rotating blades.
Solution Approach 2:
The water flow itself acts as an intermediary between the discharge ports and the blades. The controlled water discharge creates a protective barrier that reduces direct collision between debris and the water discharging section, while still maintaining effective cleaning of the inner wall surfaces.
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
Efficient cleaning of the inner housing walls, including corners and blades, while minimizing damage from debris, by targeted water discharge and improved water flow management.
Implementation Method 1
a water discharging section provided inside the housing for discharging cleaning water fed to the water feeding section
Implementation Method 2
the cleaning water discharged toward the inner wall face will be splashed back from the inner wall face to hit the blade, whereby the cleaning water will be stirred inside the housing
Data Source
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AI summary
There are provided blades 22R, 22C, 22L rotatably driven about rotational axes XL, XC, XR to be able to cut grass on the ground surface, a housing covering the blades 22R, 22C, 22L and having a lower face thereof opened, a water feeding section provided outside the housing, a water discharging section 54 provided inside the housing for discharging cleaning water fed to the water feeding section, and a water feeding pipe 55 connected to/between the water feeding section and the water discharging section 54. The water discharging section 54 discharges water toward an inner wall face of the housing.