Drive-Over Mower Deck Locking Plates for Seat-Side Operation
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Solution Overview
Problem
Existing drive over mower decks require manual locking and unlocking, necessitating the operator to leave their seat, which is inefficient and inconvenient.
Innovation Solution
An automatic locking mechanism using pivotably connected locking plates that lock and unlock the mower deck without requiring the operator to leave their seat, utilizing hydraulic, electric, or manual controls to lift and lower the deck, and incorporating cranks and lift frames for precise height adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual locking and unlocking mechanism is used, then the structure is simple, but the operator must leave the seat which reduces productivity
Solution Approach 1:
The locking mechanism automatically locks and unlocks based on the mower deck position. When the deck is in the lowered position, the system automatically locks; when raised, it automatically unlocks, eliminating the need for manual intervention and allowing the operator to remain seated.
Solution Approach 2:
The system uses the position of the mower deck as feedback to control the locking mechanism. The linkage system detects whether the deck is in the lowered or raised position and automatically activates the corresponding lock or unlock state, improving operational efficiency without requiring the operator to leave the seat.
2Ease of operation
If automatic locking mechanism is added, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is integrated with the existing lift linkage system. The same linkage that controls the mower deck height also controls the locking plates, combining two functions into one system and avoiding the need for separate complex locking mechanisms.
Solution Approach 2:
The locking plates serve dual purposes: they lock the mower deck to the lift frame during transport and mowing operations, and they automatically disengage when the deck is in the installation position. This multi-functionality reduces the need for additional components.
3Reliability
If locking plates are used to prevent disengagement, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The locking plates automatically engage and disengage based on the mower deck position. The system uses the mechanical movement of the deck itself to activate the locking and unlocking actions, ensuring reliable engagement during transport and mowing without requiring additional control systems or complex mechanisms.
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
Enables seamless locking and unlocking of the mower deck from the operator's seat, enhancing operational efficiency and convenience by maintaining deck stability during transport and mowing.
Implementation Method 1
When the drive over mower deck is raised from the installation position to any mowing or transport position, locking plates 106 begin to close. The locking plates close automatically so that the hook-shaped or C-shaped portions capture and lock rear lift rods 116 in slots 118
Implementation Method 2
a pair of locking plates 106, each locking plate having a first or upper portion 108 pivotably connected to crank 112, and a second or lower portion 114 hook-shaped or C-shaped to lock the drive over mower deck to the lift frame
Data Source
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AI summary
A drive over mower deck automatic locking mechanism includes a lift frame engaging a drive over mower deck, and a pair of locking plates pivotably connected to the lift frame. The locking plates lock the drive over mower deck to the lift frame when the lift frame raises the drive over mower deck to a mowing or transport position and unlock the drive over mower deck from the lift frame when the lift frame lowers the drive over mower deck to an installation position.