Magnetic Bayonet Closure Device for Automatic Rotation
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Solution Overview
Problem
Existing closure devices often require screw connections, which may not provide a clearance-free mechanical connection, and can be cumbersome in certain applications where a more efficient and easy-to-use mechanism is needed.
Innovation Solution
A closure device with a bayonet-style locking mechanism, utilizing magnetic elements and angled guide surfaces to facilitate easy alignment and secure engagement of closure parts, allowing for automatic closure without the need for screwing, and enabling quick release with minimal effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw connection is used to connect closure parts, then the connection can be securely fastened, but the mechanical connection is not clearance-free and the operation becomes cumbersome
Solution Approach 1:
The patent replaces the screw connection mechanism with a magnetic connection system. Magnets embedded in the closure parts create automatic magnetic attraction that draws the parts together and secures them without requiring threading or rotational fastening. This substitution eliminates the need for clearance adjustments and simplifies the operation to a simple pushing motion, resolving the contradiction between connection security and operational ease.
2Reliability
If a screw connection mechanism is implemented, then the closure parts can be held together firmly, but the device complexity increases
Solution Approach 1:
The patent extracts and eliminates the complex screw thread geometry and associated alignment features from the closure mechanism. By using simple magnets embedded in the closure parts, the design removes the need for threaded holes, screw heads, and precise threading alignment, significantly reducing mechanical complexity while maintaining firm closure through magnetic attraction.
Solution Approach 2:
The patent changes the fundamental connection parameter from mechanical interlocking (screw threads) to magnetic field interaction. This parameter change allows the closure parts to be firmly held together through magnetic force without requiring complex mechanical structures, thereby reducing device complexity while maintaining reliability.
3Ease of operation
If magnetic elements are used to support the moving closer together of closure parts, then the closing becomes easy and automatic, but additional components are introduced
Solution Approach 1:
The patent merges the magnetic connection function directly into the closure parts themselves by embedding magnets within the part structures. This integration means the magnetic elements become an inherent part of the closure mechanism rather than separate external components, achieving automatic closing through magnetic attraction while minimizing the increase in device complexity.
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 bayonet-style closure device ensures a secure, clearance-free connection with reduced mechanical complexity, allowing for easy assembly and disassembly, and provides a compact design suitable for various applications, including securing electronic devices to carriers like bicycle handlebars.
Implementation Method 1
at least two magnetic elements which, when the closure parts are moved toward one another, cause magnetic attraction between the first closure part and the second closure part
Implementation Method 2
the guide portion comprises a guide surface which is angled toward the connection axis, is contacted by the closure portion when the second closure part is moved to the first closure part and which forces the second connection element to rotate about the connection axis
Data Source
AI summary
The invention relates to a closure device (V) comprising at least one first and second closure part (1, 2). In particular, a first connection element (12) of the first closure part (1) has at least one guide portion (121), and a second connection element (22) of the second closure part (2) has at least one closure portion (221), wherein—the guide portion (121) has a guide surface (1210) which is inclined relative to the connection axis (A), with which the closure portion (221) comes into contact when the second closure part (2) is placed on the first closure part (1), and which forces the second connection element (22) to rotate about the connection axis (A) relative to the first connection element (12) along a first rotational direction (D1) when the two closure parts (1, 2) further approach each other under the effect of at least two magnet elements (M1, M2; M3, M4) of the closure device (V), —the closure device (V) has an adjusting device (M3, M4; 24) by means of which a force is applied to the second connection element (22), which has now assumed an intermediate position, in a second rotational direction (D2) opposite the first rotational direction (D1) such that the second connection element (22) is automatically rotated out of the intermediate position into a closed position relative to the first connection element (12) along the second rotational direction (D2), and —in the closed position (a), the closure portion (221) at least partly engages behind the guide portion (121) in order to hold the connection elements (12, 22), and thus the closure parts (1, 2), against each other, and (b) the second connection element (22) can be rotated in the first rotational direction (D1) in order to release the two closure parts (1, 2) from each other in order to open the closure device (V).