Lawn Mower Edge Trimming Assembly for Corners and Impact Buffering
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Solution Overview
Problem
Lawn mowers struggle to completely cut grass at edges and corners due to their body being wider than the mowing mechanism, leading to incomplete trimming and reduced quality.
Innovation Solution
A lawn mower design featuring an edge trimming assembly with a mounting bracket that slides within an arcuate groove, driven by an elastic assembly to switch between unfolded and folded states, allowing it to adjust its position and buffer impacts, ensuring complete cutting at boundaries and corners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the body of the lawn mower is made slightly wider than the mowing mechanism to meet safety regulations, then the safety and stability of the mower is improved, but the mower becomes unable to completely cut the grass located at edges or corners, resulting in incomplete cutting and reduced trimming quality
Solution Approach 1:
The lawn mower is divided into two functional parts: the main body for general mowing and a separate edge trimming assembly for boundary cutting. This segmentation allows each part to be optimized for its specific function, with the edge trimming assembly being narrower and capable of accessing edge areas that the wider main body cannot reach.
Solution Approach 2:
The edge trimming assembly is designed to extend laterally from the main body in a direction perpendicular to the main mowing direction. This dimensional extension allows the trimming mechanism to reach edge and corner areas that would otherwise be inaccessible due to the width constraint of the main body.
2Manufacturing precision
If an edge trimming assembly is added to enable complete cutting at edges and corners, then the trimming quality is improved, but the complexity of the device structure increases
Solution Approach 1:
The edge trimming assembly is integrated with the main body through a mounting bracket that combines multiple functions: structural support, rotational articulation, and elastic coupling. This merging reduces the number of separate components and simplifies the overall structure while maintaining the ability to perform edge trimming.
Solution Approach 2:
The edge trimming assembly is designed with rotational freedom around a vertical axis, allowing it to dynamically adjust its position and orientation. This dynamic capability enables the assembly to adapt to different edge configurations and terrain conditions without requiring complex mechanical linkages or actuators.
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 enables effective cutting at edges and corners while preventing damage to the edge trimming assembly, improving trimming quality and extending its service life.
Implementation Method 1
an elastic assembly, two ends of the elastic assembly being movably connected to the fixing portion and the connecting portion, respectively, wherein the elastic assembly continuously maintains an elastic force in a direction of the connecting portion so as to drive the edge trimming assembly to switch toward the unfolded state and the folded state
Implementation Method 2
the connecting portion extending into the arcuate groove and being configured to slide within the arcuate groove so as to drive the edge trimming assembly to switch toward an unfolded state and a folded state
Data Source
AI summary
A lawn mower, comprising a mower body, an edge trimming assembly, and an elastic assembly. A side of the mower body is provided with an arcuate groove and a fixing portion. The edge trimming assembly includes a mounting bracket provided with a connecting portion, and the connecting portion extends into the arcuate groove. Two ends of the elastic assembly are movably connected to the fixing portion and the connecting portion, respectively. The elastic assembly continuously maintains an elastic force toward the connecting portion so as to drive the edge trimming assembly to switch toward an unfolded state and a folded state. The elastic assembly is further configured to buffer an impact applied to the edge trimming assembly.