Carrier Elements for Pallet Lifting Systems
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Solution Overview
Problem
Existing lifting systems using slings to lift heavy pallets face risks of pallet tilting and load displacement due to uneven support, requiring precise sling positioning, which can be hazardous and difficult to manage with a single person.
Innovation Solution
A lifting system comprising carrier elements with stiff supporting beams and distance elements, where the suspension device is fastened to the beams in opposite ends, ensuring even support across the pallet width and preventing longitudinal displacement, allowing for easy single-person operation with adjustable chains or straps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If slings are used to lift the pallet, then the lifting operation can be performed, but the outer edge of the pallet boards can be flipped upwards causing instability
Solution Approach 1:
The lifting system is divided into separate functional components: carrier elements with supporting beams for load distribution, distance elements for positioning, and suspension devices for lifting. This segmentation allows each component to perform its specific function optimally, preventing board flipping while maintaining ease of operation
Solution Approach 2:
Carrier elements act as intermediaries between the slings and the pallet. These carrier elements with stiff supporting beams distribute the lifting force across the entire pallet width, preventing the outer edges from flipping while maintaining stable lifting operation
2Reliability
If precise sling positioning is required for optimal balance, then lifting stability can be improved, but the operation becomes difficult to manage with a single person
Solution Approach 1:
The carrier elements are pre-positioned on the pallet before lifting, with distance elements that automatically ensure correct positioning relative to the pallet edges. This preliminary positioning eliminates the need for complex adjustments during lifting, enabling single-person operation while maintaining balance
Solution Approach 2:
The distance elements on the carrier elements automatically position themselves relative to the pallet dimensions, providing self-adjusting positioning that ensures optimal balance without requiring manual adjustment by the operator
3Quantity of substance
If the pallet is heavily loaded with incomplete surface coverage, then the lifting load increases, but the risk of pallet tilting and load displacement increases
Solution Approach 1:
The lifting system segments the load support function across multiple carrier elements distributed across the pallet width. Each carrier element independently supports its section of the load, preventing tilting even when the load is heavy and unevenly distributed
Solution Approach 2:
The carrier elements are designed to create equipotential support across the entire pallet width, ensuring that lifting force is evenly distributed regardless of load distribution. This prevents differential movement that could cause tilting or load displacement
Data Source
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AI summary
A lifting system (1) for lifting a pallet (5) with a heavy load (6) is disclosed, said lifting system comprising two or more carrier elements (4) and a suspension device in the form of a chain sling (2) or a strap sling with double as many fastening ends as the number of carrier elements, wherein each of the carrier elements comprises a stiff supporting beam (7) and a distance element (8) and is arranged so that two of the fastening ends of the suspension device can be fastened to the supporting beam in opposite ends thereof, and wherein the distance element is dimensioned and mounted onto the supporting beam in such a way that it prevents displacement of the carrier element relative to a pallet in the longitudinal direction thereof, when the carrier element is mounted transversely through the pallet. Furthermore, a carrier element for such a lifting system is disclosed.