Deployable Side Trim Panels for Combine Maintenance Access
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Solution Overview
Problem
Current harvesting combines face difficulties in accessing internal mechanical components for maintenance due to the placement of styling panels, which obstruct servicing, require significant force to open, and are prone to wind damage, with insufficient height and safety concerns for operators.
Innovation Solution
Deployment arms pivotally affixed to the combine, allowing side trim panels to move outwardly and upwardly, accompanied by a pivoting plank that deploys from vertical to horizontal, providing a stable walkway for maintenance and locking in place with the operator's weight, ensuring safe access and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If appearance panels are used as safety shielding, then safety is improved, but access for servicing components is blocked
Solution Approach 1:
The appearance panels are made movable rather than fixed. They can be opened outwardly from the forward end to provide access to internal components while maintaining safety when closed. The panels transition between a closed protective state and an open accessible state, resolving the contradiction between safety and serviceability.
2Ease of operation
If panels are hinged at the top to allow access, then access is improved, but significant force is required to lift the panel
Solution Approach 1:
A deployment mechanism acts as an intermediary between the operator and the heavy panel. The mechanism includes a deployment arm that pivots to push the panel outward, and a cable system with a reel that controls panel movement. This intermediary system reduces the direct force required by the operator to open the panel.
Solution Approach 2:
A hydraulic cylinder is used to power the deployment mechanism. The hydraulic system provides the necessary force to move the heavy appearance panel outward and upward, reducing the manual effort required while maintaining control over the panel's movement.
3Ease of operation
If panels are opened outwardly to allow access, then servicing is improved, but wind can buffet or tear the panel
Solution Approach 1:
The panel's position is dynamically controlled through the deployment mechanism. When not in use, the panel remains closed against the combine body, presenting a streamlined profile that resists wind forces. During servicing, it opens to a controlled position that provides access while the deployment mechanism can manage wind loads.
Solution Approach 2:
The deployment mechanism includes control systems that can respond to wind conditions. The hydraulic system and cable controls allow the operator to adjust panel position based on environmental conditions, closing the panel when wind conditions are adverse to prevent damage.
4Ease of operation
If panels are hinged at the front or rear, then access is improved, but the panel becomes vulnerable to wind damage
Solution Approach 1:
The panel is hinged at the forward end but controlled by a deployment mechanism that manages its movement. The panel can open outwardly for access while the deployment arm and cable system control its position, preventing excessive movement that would cause wind damage. The mechanism allows the panel to maintain a stable, controlled position even when open.
Data Source
AI summary
A harvesting combine has a forward operator's cab and having a rear, and carrying laterally extending side trim panels from just behind the operator's cab to the rear of the harvesting combine. Deployment arms are pivotally affixed at their proximal ends to the harvesting combine and pivotally affixed to the side trim panels at their distal ends. The deployment arms are generally horizontal when the deployment arms are retracted. The deployment arm distal ends are movable outwardly and upwardly to deploy the side trim panels away from the harvesting combine. A pivoting plank carried by the inside of the side trim panels and deployable from a generally vertical stowed position to a generally horizontal position when the side trim panels have been deployed.