Automatic Header Latch Alternating Lock States via Rocking Bracket
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Solution Overview
Problem
Agricultural vehicles lack an efficient mechanism to automatically alternate between locked and unlocked states for headers, which is essential for safe operation, maintenance, and crop handling, as existing systems require manual intervention or are not designed for seamless switching between these states.
Innovation Solution
An automatic header latch system that includes a housing link, a channel, a pin, and a locking assembly with a rocking bracket and diverting bracket, which alternates between locked and unlocked states with each full-raise actuation of the header, using a fastener to secure the rocking bracket in loaded and unloaded positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual intervention is used to switch between locked and unlocked states, then the mechanism is simple and reliable, but the operation efficiency is low and requires continuous human involvement
Solution Approach 1:
The latch system automatically alternates between locked and unlocked states through the mechanical movement of the header itself. The rocking bracket detects the header's position changes and self-actuates the locking mechanism without requiring external manual intervention, making the system serve itself.
Solution Approach 2:
The locking mechanism transitions from a static manual system to a dynamic automatic system. The rocking bracket and diverting bracket create a mechanical linkage that dynamically responds to header movement, automatically switching states based on the header's position during operation.
2Ease of operation
If an automatic switching mechanism is implemented, then the operation efficiency is improved, but the device complexity increases with additional components
Solution Approach 1:
The locking assembly uses dynamic mechanical linkages (rocking bracket, diverting bracket) that automatically respond to header movement. The system transitions from a static manual latch to a dynamic automatic mechanism that adapts its state based on operational conditions.
Solution Approach 2:
The rocking bracket acts as an intermediary element between the header movement and the locking mechanism. It translates the header's positional changes into corresponding locking state changes, mediating the interaction between operational movement and security state.
3Reliability
If the header remains in unlocked state for easy access, then the ease of operation is improved, but the safety is compromised during maintenance and non-operational periods
Solution Approach 1:
The latch system implements periodic alternation between locked and unlocked states with each full-raise actuation of the header. This rhythmic switching ensures the header is accessible during operational cycles while automatically securing it during non-operational periods, creating a periodic safety pattern.
Solution Approach 2:
The system provides automatic feedback-based state switching. The rocking bracket detects the header's full-raise position and feeds this information back to the locking mechanism, which automatically responds by transitioning between locked and unlocked states based on the detected operational condition.
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 and automatic switching between locked and unlocked states with each full-raise actuation, enhancing safety during operation and maintenance, while preventing contact with the ground and ensuring efficient crop handling.
Implementation Method 1
moving the pin from the operating position to a locked position in response to a first lowering of the header
Implementation Method 2
a diverting bracket configured to redirect the pin from the operating position to the locked position
Implementation Method 3
a fastener configured to secure the rocking bracket in the loaded position
Implementation Method 4
The rocking bracket actuates between a loaded and an unloaded position, and is hingedly coupled to the diverting bracket
Data Source
AI summary
Systems, apparatuses, and methods include relate to an automatic header latch for an agricultural vehicle. The automatic header latch includes a housing link configured to couple a header to the agricultural vehicle, a channel formed in the housing link, a pin configured to be received through the channel, and a locking assembly coupled to the housing link. The locking assembly includes a rocking bracket, a diverting bracket hingedly coupled to the rocking bracket, and a fastener. The rocking bracket actuates between a loaded and an unloaded position, and is hingedly coupled to the diverting bracket. The fastener secures the rocking bracket in the loaded position, until the rocking bracket is actuated into the unloaded position by movement of the pin relative to the housing link. Following each full-raise actuation of the header, the automatic header latch is configured to alternate between a locked state and an unlocked state.