Foil Separating Means for Asparagus Mini-Tunnel Foil Handling
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Solution Overview
Problem
Existing mini-tunnel systems for asparagus cultivation face difficulties in quickly and simply replacing the black-white cover foil and transparent outer foil, particularly in ensuring the correct side of the cover foil is facing up during repositioning.
Innovation Solution
The device incorporates foil separating means on a frame with a gutter element for carrying and separating the foils, allowing easier access and correct placement of the cover foil with the desired side facing up, and uses weighted mass elements to maintain the foils' shape and secure placement over the asparagus bed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the two foils are carried together on the same carrying means, then the device structure is simplified, but the ease of operation deteriorates because correct placement becomes difficult
Solution Approach 1:
The patent divides the carrying function into two separate carrying means: one for the foil element and another for the further foil element. This segmentation allows each foil to be positioned and oriented independently, making it easier to ensure correct placement while maintaining a relatively simple overall device structure.
Solution Approach 2:
The patent introduces separating means as an intermediary component between the two carrying means. This separating means actively maintains the spatial separation of the two foils during transport and positioning, preventing them from being accidentally mixed up and ensuring that each foil can be correctly placed on the foil laying element.
2Area of stationary object
If the foils are kept close together during transport, then the working space is maximized, but the ease of operation worsens due to difficulty in accessing the foil laying element
Solution Approach 1:
The separating means acts as an intermediary that actively manages the spatial relationship between the two foils. It maintains an appropriate distance between them during transport, creating sufficient access space to the foil laying element while still operating within the constraints of the mini-tunnel working environment.
3Device complexity
If no separating means is used, then the device complexity is reduced, but the reliability of correct foil placement deteriorates
Solution Approach 1:
The separating means serves as a reliable intermediary mechanism that actively prevents the two foils from being confused or incorrectly positioned. By maintaining their separation throughout the transport and positioning process, it significantly increases the reliability of correct foil placement without adding excessive device complexity.
Solution Approach 2:
The separating means is designed to automatically maintain foil separation through its structural configuration and movement with the carrying means. This self-service mechanism reduces the need for additional active control systems or manual intervention, achieving reliable foil placement while keeping the device structure relatively simple.
Data Source
Figure 1a~1b
Figure 2
Figure 3a~3b
AI summary
The invention relates to a device (1) for lifting a foil element (12) and a further foil element (11) placed on/near an asparagus bed (2) from said asparagus bed and for carrying back the foil element (12) and the further foil element (11) to the asparagus bed (2), the device (1) comprising a frame (21) movable in the longitudinal direction of the bed (2), as well as carrying means (22) connected to the frame (21) for holding the foil element (12) and the further foil element (11) spaced from the bed (2), wherein the device comprises a foil laying element (27) for giving the foil element (12) essentially the shape of the contour of the bed (2) when the foil element (12) is being carried back to the bed, wherein the device (1) is provided with foil separating means (27, 28).