Magnetic Holding Device for Foldable Door Release
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Solution Overview
Problem
Existing foldable door holding devices are complex, require multiple parts, take up significant space, and are not suitable for doors with a single element, necessitating a different design for each door configuration.
Innovation Solution
A simplified holding device with a locking unit, force transmitter, and magnetic or ferromagnetic components that allows for easy mounting on a single door element, using a locking mechanism that transitions between holding and release positions with minimal parts and space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure-actuated holding device with multiple fitting members and device parts is used to hold the foldable door, then the door can be held in closed position and folding process can be initiated, but the device structure becomes complex and requires numerous parts
Solution Approach 1:
The holding device is divided into two functional modules: a holding module with a holding element (magnet) for maintaining closed position, and a release module with a release element for initiating opening. This segmentation allows each module to perform its specific function independently, reducing overall complexity while maintaining reliability.
Solution Approach 2:
The holding device is designed to work with both single-element doors and multi-element foldable doors using the same basic structure. The holding element and release element can be positioned to accommodate different door configurations, eliminating the need for completely different device designs for different door types.
2Reliability
If multiple fitting members and device parts are used to connect door elements, then the door can be held and released, but the device takes up a lot of space within the piece of furniture
Solution Approach 1:
The holding element and release element are positioned within or adjacent to each other, with the release element typically located near the holding element. This nested or closely integrated arrangement minimizes the overall space required for the device while ensuring both functions can be performed effectively.
Solution Approach 2:
The holding and release functions are achieved through positioning elements in specific spatial relationships (e.g., magnetic holding force in one dimension, mechanical release in another), allowing compact integration without compromising functionality.
3Reliability
If two fitting parts are used to connect door elements, then the door can be held in closed position, but it must be ensured that they are connected at the correct distance and alignment
Solution Approach 1:
The holding element (e.g., magnet) and release element are designed to automatically align and engage at the correct distance and orientation when the door is in the closed position. This self-aligning mechanism eliminates the need for precise pre-positioning during assembly, as the elements naturally find their correct configuration through the door's geometry and the holding force itself.
4Reliability
If a holding device with multiple mechanically guided parts is used, then the door can be held securely, but the device requires precise mechanical guidance and alignment
Solution Approach 1:
The holding function is achieved primarily through magnetic attraction between the holding element and the door, replacing the need for complex mechanical guidance systems. This substitution of magnetic field for mechanical guidance significantly reduces device complexity while maintaining secure holding.
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
The device efficiently holds foldable doors in a closed position, supports automatic opening, and minimizes space usage, while being easily mountable and cost-effective, suitable for both single and multi-part doors.
Implementation Method 1
a holding magnet (282) is provided, which in the holding position is held by magnetic attraction by the locking element (20)
Implementation Method 2
a force accumulator (34) which is to be loaded manually by the user and which acts against the ejector element (32)
Data Source
AI summary
A holding device holds a pivotally mounted door element closed and releases the door element, includes a locking unit with force transmitter, having a connection part, and locking mechanism reaching a holding position and the holding device connects to a locking element, and release position, wherein the locking mechanism releases and the holding device disconnects from the locking element. The locking element includes at least partially magnetic or ferromagnetic material, mounting part with mounting body and holding lever with body, the mounting body connects to the door element and connects by lever joint to the lever body including a front piece, holding at least one magnet, wherein the holding position force-lockingly connects to the locking element, and coupling unit with a single or multi-part coupling body which distanced from the lever joint pivotally connects to the mounting body and pivotally connects to the lever body and locking unit connection part.