Wrapping Device Loading Mechanism for Agricultural Harvesters
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Solution Overview
Problem
Existing wrapping devices for agricultural harvesters require manual handling of heavy supply reels, which is cumbersome and inefficient, especially when replacing reels in outdoor settings without lifting devices.
Innovation Solution
A wrapping device with a loading device featuring supporting rollers that allow for ergonomic placement and shifting of new supply reels into the unrolling station, eliminating the need for pivotal troughs and reducing manual lifting effort by positioning rollers below the unrolling station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling of heavy supply reels is used, then the device structure remains simple, but operator effort and efficiency deteriorate
Solution Approach 1:
The patent introduces a loading device as an intermediary mechanism between the operator and the heavy supply reel. This loading device includes supporting rollers and positioning structures that facilitate the transfer of the reel from the pallet to the unrolling station, reducing the direct manual handling effort required while maintaining reasonable structural complexity
Solution Approach 2:
The loading device is designed to position the supply reel at the same height as the unrolling station, eliminating the need for vertical lifting. The supporting rollers are arranged to receive the reel horizontally from the pallet and transfer it horizontally to the unrolling station, creating an equipotential workflow that reduces operator effort
2Ease of operation
If pivotal troughs are used for reel placement, then reel positioning is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent extracts the essential function of reel positioning from the complex pivotal trough mechanism. Instead of using a pivotal trough that requires complex articulation and space, the invention uses simple supporting rollers with positioning stops that achieve the same reel positioning function with much simpler structure and less space
Solution Approach 2:
Instead of using a pivotal trough that moves the reel through a complex arc-shaped path, the invention inverts the approach by using fixed supporting rollers that receive the reel horizontally and transfer it directly to the unrolling station, simplifying the positioning mechanism while maintaining accuracy
3Ease of operation
If supporting rollers are positioned below the unrolling station, then manual lifting effort is reduced, but device height increases
Solution Approach 1:
The supporting rollers are positioned at a height that allows the reel to be received and transferred horizontally without vertical lifting. The loading device creates an equipotential transfer path where the reel remains at the same elevation throughout the loading process, minimizing operator lifting effort while controlling the overall device height through compact vertical arrangement of components
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 easier and more efficient replacement of supply reels, reducing operator effort and space requirements, while minimizing the risk of reel damage and jamming, and maintaining the device's compactness and simplicity.
Implementation Method 1
The or every supporting roller (4.1, 4.2) can carry from below a further supply reel (3.2) and enables that the further supply reel (3.2) resting on the or at least one supporting roller (4.1, 4.2) is shifted in a shifting direction (SD)
Data Source
AI summary
A wrapping device and a web supplying method are used on board of an agricultural harvester. A supply reel with wrapping material is held between two parts of an unrolling station. A web moving member moves a web taken from this supply reel away from the unrolling station. For replacing the supply reel with a further supply reel, the further supply reel is placed on at least one supporting roller. The or every supporting roller is stationary and is positioned angularly below the unrolling station and between two unrolling station parts. The further supply reel on the supporting roller is shifted in a shifting direction towards an unrolling station part.