Electric Lawn Mower Deck Lift Mechanism and Power System
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Solution Overview
Problem
Traditional gas-powered lawn mowers are inefficient, difficult to maintain, and pose environmental and safety hazards due to noise pollution, maintenance challenges, and the need for onsite fuel storage.
Innovation Solution
A lawn mower design featuring an electric power source with a quick deck lift mechanism that allows the mower deck to be raised for obstacle clearance, enabling safer operation and easier maintenance, along with a height adjustment system and intuitive user interface for enhanced operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a gas powered engine is used to drive the lawn mower, then power and productivity are improved, but noise pollution, harmful emissions, and safety hazards increase
Solution Approach 1:
The patent replaces the gas-powered internal combustion engine with an electric motor system. The electric motor is powered by a battery pack, eliminating the need for combustion processes that generate noise and harmful emissions. This substitution maintains adequate power for lawn mowing operations while removing the harmful factors associated with gas engines.
2Power
If a gas powered engine is used, then power is improved, but maintenance difficulty and operational costs increase
Solution Approach 1:
The complex mechanical system of a gas engine (including carburetor, spark plugs, exhaust system, fuel lines) is replaced with a simpler electric motor and battery system. Electric motors have fewer moving parts, no combustion chambers to clean, no spark plugs to replace, and no exhaust systems to maintain, significantly reducing maintenance requirements and operational costs.
3Adaptability or versatility
If a quick deck lift mechanism is added to raise the mower deck for obstacle clearance, then operational safety and versatility are improved, but device complexity increases
Solution Approach 1:
The mower deck is designed with dynamic height adjustment capability through a quick lift mechanism. This allows the deck to transition between a low mowing position and a high clearance position as needed. The mechanism uses linkages and actuators that can quickly change the deck angle, providing adaptability for different terrain conditions without requiring a completely separate lifting system.
4Ease of manufacture
If manual height adjustment is used, then ease of manufacture is improved, but operational efficiency and user convenience deteriorate
Solution Approach 1:
The height adjustment system incorporates a user interface that allows operators to easily select desired cutting heights. The system includes indicators that show current height settings and mechanisms that enable quick adjustment without requiring complex manual operations. This balances manufacturing simplicity with operational convenience by using straightforward mechanical or electromechanical adjustment components.
Data Source
AI summary
A lawnmower can include a frame; a mower deck; and a connection interface that selectively couples the mower deck to the frame, wherein the connection interface is selectively lockable in an open state to permit installation of the mower deck to the frame, and wherein the connection interface is spring biased to a closed state to lock the mower deck and the frame together.