Threaded Winding Lock for Secure Disengagement Prevention
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Solution Overview
Problem
Existing securing arrangements often require additional elements and are not sufficiently secure against unintentional disengagement.
Innovation Solution
A securing arrangement comprising a cylindrical element with a winding and a counter element with a threaded portion, where the thread direction and pitch match the winding direction and pitch, allowing secure connection through frictional force generation upon rotation in one direction and disengagement through a combination of rotation and pulling movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional securing measures are used, then additional elements are required, but the device complexity increases
Solution Approach 1:
The patent combines the securing function and the element to be secured into a single integrated component. The cylindrical element with winding incorporates the securing mechanism directly, eliminating the need for separate securing elements like clips or pins. This merging reduces device complexity while maintaining securing reliability.
Solution Approach 2:
The cylindrical element with winding is designed to be self-securing through its own structural features. The winding configuration and thread direction create self-locking behavior where the element secures itself to the counter element without requiring additional securing components. The element serves its own securing function.
2Reliability
If conventional rotational connections are used, then disengagement is possible with sufficient torque, but security against unintentional disengagement is insufficient
Solution Approach 1:
The patent employs asymmetric thread direction and winding configuration that creates different mechanical behavior for engagement versus disengagement. The thread direction is specifically designed so that rotation in one direction generates increasing frictional force that locks the connection, while the opposite direction requires a specific pulling motion combined with rotation to disengage. This asymmetric design prevents unintentional disengagement while maintaining controlled ease of operation for intended disengagement.
Solution Approach 2:
The winding and thread configuration creates a preliminary locking action that prevents disengagement before any significant reverse torque can be applied. The frictional force generated by the matched thread direction and winding pitch acts in advance to counteract any attempted disengagement, requiring a deliberate two-step disengagement process rather than simple reverse rotation.
3Reliability
If frictional force is increased to prevent disengagement, then securing reliability improves, but the force required for operation increases
Solution Approach 1:
The patent creates a dynamic frictional locking mechanism where the frictional force is not constant but changes based on the operational state. During engagement, the frictional force builds up progressively as the winding engages with the threaded portion. During operation, the frictional force self-regulates to prevent disengagement. For disengagement, a specific pulling motion combined with rotation dynamically overcomes the frictional lock. This dynamic behavior provides high securing reliability during normal operation while allowing controlled operation when needed.
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 arrangement provides a secure connection that prevents unintentional disengagement by generating a high frictional force, requiring a specific sequence of movements for disengagement, thus enhancing security and reliability without additional elements.
Implementation Method 1
a frictional force is generated between the at least approximately cylindrical element and the counter element such that the frictional force prevents the at least approximately cylindrical element and the counter element from being disengaged from one another
Data Source
AI summary
A securing arrangement is proposed herein. The securing arrangement has an at least approximately cylindrical element and a counter element.