Robotic Mower Cutting Assembly for Safer Autonomous Mowing

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Solution Overview

Problem

Lawn mowers cause noise, dust, and physical fatigue during operation, posing health risks and safety hazards to operators.

Innovation Solution

A robotic mower with a housing, movable upper cover, and cutting assembly that allows for automated mowing operations, reducing operator exposure and enhancing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a traditional lawn mower is used for mowing operations, then the mowing task can be completed, but the operator is exposed to noise, dust, and physical fatigue which pose health risks and safety hazards

Engineering Contradiction:

Improveoperator exposure to noise, dust, and physical fatigueVSAvoidautomated mowing operation

Core Design Contradiction:

Object-affected harmful factorsVSExtent of automation

Solution Approach 1:

The lawn mower is designed to operate autonomously without human intervention during the mowing process. The cutting assembly automatically cuts grass as the mower moves, eliminating the need for an operator to manually control the mower or hold handles, thereby reducing physical fatigue and exposure to harmful factors

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical control system with an automated system. The cutting assembly is automatically engaged and disengaged through mechanical linkages connected to the wheel assemblies, eliminating the need for manual handle control and reducing operator exposure to noise and dust

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If manual operation of the mower handle is required, then the mower can be controlled, but long-term operation causes serious physical fatigue and may cause accidents

Engineering Contradiction:

Improvemanual handle controlVSAvoidphysical fatigue and safety hazards

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the operator from the immediate working environment by designing an autonomous mowing system. The cutting assembly is automatically controlled through mechanical linkages to the wheel assemblies, eliminating the need for continuous manual handle operation and removing the operator from exposure to harmful factors

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The mower performs self-control through automatic engagement and disengagement of the cutting assembly via mechanical linkages connected to the wheel assemblies. The system autonomously responds to terrain changes and obstacles without requiring manual handle control, eliminating physical fatigue and safety hazards associated with prolonged manual operation

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12575487B2Robotic mower with collision and detection assemblies

Publication Date: 2026.03.17 GLOBE (JIANGSU) CO LTD

AI summary

A mower is provided and includes: a housing; a movable upper cover, disposed on the housing; and a cutting assembly, disposed on the housing. The cutting assembly includes a blade carrier assembly, and the blade carrier assembly includes a blade carrier and a blade. The blade carrier includes a disc body and a blade receiving groove recessed inwardly from an edge of the disc body along an axial direction of the disc body. The blade is mounted in the blade receiving groove and arranged to be that the blade is not protruded out of the blade receiving groove in the axial direction of the disc body.