Pivoting Magnet Package Release in Compact Formwork Space
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Solution Overview
Problem
Existing switchable magnet devices require significant working space and stress on formwork devices due to the need for a large actuation lever, leading to frictional forces and potential jamming, making it difficult to efficiently lift the magnet off the formwork base.
Innovation Solution
A switchable magnet device with multiple magnet packages that pivot about a common axis, featuring an actuating device that performs a linear movement during pivoting, allowing for reduced lifting forces and easier operation in a compact space, with decoupling mechanisms to prevent jamming and a support device for defined pivot axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an operating lever is used to pivot the magnet, then the magnet can be released from the formwork base, but considerable working space is required and frictional forces or jamming occur at the coupling point
Solution Approach 1:
The patent replaces the traditional mechanical operating lever system with a magnetic field-based actuation system. Electromagnets or permanent magnets are used to generate magnetic forces that directly interact with the magnet package, eliminating the need for mechanical levers and their associated working space requirements. This substitution of mechanical action with magnetic field action resolves the contradiction between ease of operation and working space requirements.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the actuator and the magnet package. Instead of direct mechanical contact through a lever, the magnetic field serves as the medium to transmit the releasing force, thereby eliminating frictional forces and jamming at coupling points while maintaining ease of operation.
2Ease of operation
If an operating lever with a lever arm is used, then the magnet can be lifted, but the lifting force is reduced due to the lever arm effect
Solution Approach 1:
The patent replaces the mechanical lever arm system with a direct magnetic field interaction system. By using electromagnets or permanent magnets to generate lifting forces, the system eliminates the lever arm effect that reduces lifting force, while still maintaining ease of operation through magnetic actuation.
Solution Approach 2:
The patent employs periodic activation and deactivation of electromagnets to control the lifting and releasing of the magnet package. By periodically switching the magnetic field on and off, the system achieves efficient magnet lifting without the force reduction associated with lever arms.
3Ease of operation
If the operating lever rests against a formwork fixture during pivoting, then the lever can be actuated, but considerable stress is placed on the formwork fixture
Solution Approach 1:
The patent replaces the mechanical lever system that rests against formwork fixtures with a magnetic field-based actuation system. This substitution eliminates the mechanical contact and stress transmission to the formwork fixture, thereby preserving fixture durability while maintaining ease of magnet package actuation.
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 efficient and quick lifting of the magnet packages with reduced magnetic forces, minimizing working space requirements and preventing jamming, while maintaining high magnetic forces for securing the formwork device.
Implementation Method 1
a plurality of magnet packages (31a, 31b) which can be transferred between an interaction position, in which the magnet package is preferably in a magnetic operative connection with a magnetizable formwork base (4)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a switchable magnet device (3) comprising at least one magnet package (31a, 31b) which can be moved between an interaction position and a release position, wherein the magnet device (3) is configured such that the at least one magnet package (31a, 31b), when moving between the interaction position and the release position, at least partially performs a pivot movement about a pivot axis (32). An actuation device (9, 36, 37) is also provided, which can be coupled to the at least one magnet package (31a, 31b) to move the at least one magnet package (31a, 31b) between the interaction position and the release position. In order to easily lift the magnet from the formwork support (4) in a small working space, the magnet device (3) is configured such that the at least one actuation device (9, 36, 37), at least in portions and at least temporarily during the pivot movement of the at least one magnet package (31a, 31b), performs a linear movement in a linear movement direction.