Switchable Magnet Package Layout for Tight-Space Formwork Release

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Solution Overview

Problem

Existing switchable magnet devices require significant working space and cause stress on formwork devices due to the need for a large actuation lever, leading to frictional forces and potential jamming during the pivoting motion for releasing the magnet from the formwork support.

Innovation Solution

A switchable magnet device with a magnet package that performs a pivot movement about a pivot axis while the actuation device moves linearly, reducing the lifting force required and allowing for operation in a small working space, and featuring multiple magnet packages for simultaneous pivot movement to facilitate easy lifting with reduced magnetic force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an actuation lever is used to pivot the magnet from locking to release position, then the magnet can be released from the formwork support, but the working space required becomes considerable and stress on the formwork device increases

Engineering Contradiction:

Improvemagnet release operationVSAvoidworking space

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

Instead of pivoting the actuation lever to move the magnet, the patent inverts the approach by moving the magnet package linearly along the linear movement direction while maintaining a simplified actuation mechanism. The magnet package is directly coupled to move linearly from the locking position to the release position, eliminating the need for a large pivoting lever and reducing working space requirements.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent replaces the traditional mechanical lever pivoting system with a linear movement system. The actuation device directly translates linear motion into the magnet package's movement, substituting the complex pivoting mechanism with a simpler linear actuation approach that reduces both working space and mechanical stress.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If a large actuation lever is used to pivot the magnet, then the magnet can be released, but frictional forces or jamming occur at the coupling point between the actuation lever and the magnet

Engineering Contradiction:

Improvemagnet release operationVSAvoidcoupling point reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces the pivoting lever mechanism with a linear movement system where the magnet package moves directly along the linear movement direction. This substitution eliminates the coupling point between a pivoting lever and magnet, removing the source of frictional forces and jamming, thereby improving reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and removes the problematic pivoting lever and its coupling mechanism from the system. By eliminating the lever entirely and using direct linear movement of the magnet package, the source of friction and jamming is completely removed, improving operational reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

3Force

If the magnet is lifted translationally, then the lifting force is higher compared to pivot movement, but the actuation lever pivot movement requires considerable working space

Engineering Contradiction:

Improvelifting forceVSAvoidworking space

Core Design Contradiction:

ForceVSArea of stationary object

Solution Approach 1:

The patent inverts the traditional approach by moving the magnet package linearly along the linear movement direction rather than pivoting it. This inversion allows for a more favorable force application geometry where the actuation force is applied more efficiently, reducing the required lifting force while simultaneously minimizing working space requirements through the compact linear actuation mechanism.

Inventive Principle:

Principle #13The other way round (Inversion)

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 easy operation in a compact space with reduced lifting forces and minimized stress on the formwork device, preventing jamming and ensuring smooth operation by decoupling pivot and linear movements, thus facilitating quick and effective lifting of the magnet packages.

Implementation Method 1

at least one magnet package (31a, 31b), which can be transferred between an interaction position, in which the magnet package is in magnetic operative connection preferably to a magnetizable formwork support (4)

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS12076887B2Switchable magnet device

Publication Date: 2024.09.03 B T INNOVATION GMBH

AI summary

A switchable magnet device comprising at least one magnet package which can be moved between an interaction position and a release position, wherein the magnet device is configured such that the at least one magnet package, when moving between the interaction position and the release position, at least in portions, performs a pivot movement about a pivot axis. An actuation device is also provided, which can be coupled to the at least one magnet package to move the at least one magnet package between the interaction position and the release position. In order to easily lift the magnet from the formwork support in a small working space, the magnet device is configured such that the at least one actuation device, at least in portions and at least temporarily during the pivot movement of the at least one magnet package, performs a linear movement in a linear movement direction.