Formwork Panel Handling Device with Shock-Absorbing Net
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Solution Overview
Problem
The manual dismantling of slab formwork structures is hazardous and requires multiple operators due to the weight and height of the panels, and existing devices are not suitable for safe and damage-free handling, as they can be damaged by the impact of falling panels and lack precise engagement mechanisms.
Innovation Solution
A device with a mast of adjustable length and a carrying head featuring flexible rods and a net-like veil for damping and stabilization, allowing safe positioning and reception of the formwork panel, which reduces the risk of accidental falls and damage during dismantling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing handling devices are used to receive falling formwork panels, then the device structure is simple, but the device is damaged by repeated impacts and cannot operate properly
Solution Approach 1:
The patent applies beforehand cushioning by positioning a protective net beneath the formwork panel before it falls. The net is tensioned between support rods and is ready to absorb the impact energy when the panel falls, preventing damage to both the panel and the handling device. This pre-positioned cushioning system resolves the contradiction by providing impact resistance without requiring a complex device structure.
Solution Approach 2:
The protective net acts as an intermediary element between the falling formwork panel and the handling device. Instead of the panel directly impacting the device, the net mediates the energy transfer, absorbing and distributing the impact forces. This intermediary approach allows the device to remain simple while maintaining operational reliability through repeated use.
2Reliability
If retaining mechanisms are added to prevent panel slippage, then the device complexity increases, but the safety against accidental falls improves
Solution Approach 1:
The patent extracts the retention function from the main device structure and implements it through the protective net system. The net, tensioned between the rods, provides the retention function without requiring complex mechanical retaining mechanisms to be integrated into the device framework. This extraction approach improves safety while maintaining device simplicity.
Solution Approach 2:
The protective net functions as a flexible film structure that provides retention through its tensioned state rather than rigid mechanical constraints. The net's flexibility allows it to adapt to the panel's position while maintaining retention force, achieving safety without increasing device complexity through rigid structural additions.
3Manufacturing precision
If precise positioning mechanisms are implemented for panel engagement, then the manufacturing precision increases, but the ease of operation decreases due to positioning difficulty at height
Solution Approach 1:
The patent applies dynamics by making the support rods telescopic rather than fixed length. The rods can extend and retract to dynamically adjust the net's position and tension, allowing the system to self-adapt to different panel positions and heights. This dynamic adjustment eliminates the need for precise manual positioning while maintaining engagement precision.
Solution Approach 2:
The telescopic rods with automatic extension and retraction capabilities enable the device to self-position and self-adjust without requiring precise manual intervention from operators at height. The system performs its own positioning function, resolving the contradiction between precision and ease of operation.
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 single-operator safe dismantling of formwork panels by absorbing shocks and stabilizing the panel during descent, reducing the risk of accidents and device damage, and facilitates easy retrieval and storage with reduced operator effort.
Implementation Method 1
said veil (13) being more flexible than the support structure and said at least four rods... allowing safe positioning and reception of the formwork panel, which reduces the risk of accidental falls and damage during dismantling
Implementation Method 2
said veil (13) being more flexible than the support structure and said at least four rods... stabilizing the panel during descent
Data Source
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AI summary
Device (1) for handling a slab formwork panel or the like, said formwork panel comprising a plate onto which the slab or the like is intended to be cast and comprising a peripheral frame projecting below said plate. The device (1) comprising a mast (5) of adjustable length having at one end (5b) a carrying head (7). The carrying head (7) has four rods (9-12) between which a web (13) is stretched.