Mower Deck Transport Lock with Visual Indicator
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Solution Overview
Problem
Operators often forget to lower the mower deck from the transport position back to the selected cut height after raising it for transport, leading to unproductive mowing above the intended height.
Innovation Solution
A mower deck transport lock with a striker plate and transport bracket that engages when the deck is raised to the transport position, featuring a pivotable mechanism and indicator that extends through the body panel to visually confirm the transport lock's activation status, allowing easy deactivation and ensuring the deck returns to the previous cut height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mower deck is raised to the transport position above the maximum cut height, then the deck can clear obstacles encountered while traveling across the ground, but operators may forget to lower the deck back to the selected cut height, resulting in unproductive time mowing above the selected cut height
Solution Approach 1:
The patent implements a visual feedback mechanism through a transport lock indicator that clearly shows when the mower deck is in the transport position. This feedback system prevents operator error by providing continuous information about the deck's height status, ensuring operators can immediately recognize when the deck needs to be lowered back to the selected cut height, thereby eliminating unproductive mowing time.
2Loss of time
If a transport lock indicator is added to show when the mower deck is in the transport position, then operators can avoid unproductive mowing time, but the device complexity increases
Solution Approach 1:
The transport lock indicator is designed to automatically activate and provide visual feedback without requiring any additional input from the operator. The system self-regulates by detecting when the deck reaches the transport position and immediately displaying the status, thereby preventing unproductive mowing time while adding minimal complexity through an automated rather than manual system.
Solution Approach 2:
The patent utilizes color changes in the transport lock indicator to communicate the deck's height status to the operator. By using distinct colors to represent different positions (e.g., green for cut height, red for transport position), the system provides clear, intuitive visual feedback without requiring complex displays or interfaces, thus minimizing device complexity while effectively preventing unproductive mowing time.
3Reliability
If a transport lock mechanism with indicator is implemented, then the mower deck can be reliably returned to the intended cut height, but the manufacturing cost and assembly time increase
Solution Approach 1:
The transport lock mechanism is divided into separate functional components: the indicator system, the lock engagement mechanism, and the height adjustment components. This segmentation allows each part to be manufactured and tested independently, then assembled together, which can actually reduce overall assembly time and improve reliability by ensuring each component functions correctly before integration.
Solution Approach 2:
The transport lock indicator and mechanism are designed to be integrated within the existing mower deck structure, with components nested within each other to minimize the overall footprint. The indicator is positioned to be visible without adding external protrusions, and the lock mechanism is incorporated into the existing height adjustment system, thereby maintaining ease of manufacture and assembly while ensuring reliable deck height positioning.
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 transport lock ensures the mower deck is reliably returned to the intended cut height after transport, preventing unnecessary mowing above the selected height and enhancing operational efficiency.
Implementation Method 1
A transport bracket rides on the striker plate and pivots into engagement with the striker plate when the striker plate is at a transport position above the plurality of different height of cut positions
Data Source
AI summary
A mower deck transport lock for a parallelogram lift linkage supporting a mower deck at any of a plurality of cutting heights where a striker plate contacts a height of cut selection knob. A transport bracket pivots into engagement with the striker plate only at a transport height above the plurality of cutting heights. A transport lock indicator is activated when the transport bracket pivots into engagement with the striker plate.