Movement Lock Actuator Blocking Element Vibration
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Solution Overview
Problem
Mechanically or mechatronically actuated locking systems face issues with unwanted or unintentional movement of blocking elements or actuators due to external influences like vibrations or impulses, which can lead to unintended unlocking.
Innovation Solution
A movement lock mechanism featuring a pretensioned or offset blocking element that can be temporarily engaged with the actuator, utilizing a pivoted lever and tension spring or a blocking strip, to prevent unwanted movement, and can be reset with authorized actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a locking system uses a blocking element that can be moved by external impulses, then the locking system can be actuated mechanically or mechatronically, but unwanted or unintentional movement may occur due to vibrations or external impulses
Solution Approach 1:
The patent applies preliminary anti-action by introducing a movement lock that proactively prevents unwanted movement before it can occur. The blocking element is pretensioned against the actuator, creating a pre-existing counterforce that opposes any external impulses or vibrations that might cause unintended actuation. This preventive measure ensures that only authorized actuation forces can overcome the pretension and move the blocking element, thereby resolving the contradiction between ease of operation and reliability.
Solution Approach 2:
The movement lock is configured in a ready state before any external impulse occurs. The blocking element is positioned and pretensioned in advance, so that when an external impulse or vibration occurs, the protective action is already in place. This preliminary configuration ensures that the locking system remains secure against unintended actuation while still allowing authorized operation, thus resolving the technical contradiction.
2Reliability
If a blocking element is pretensioned to prevent unwanted movement, then reliability is improved, but the blocking element may become stuck or difficult to reset
Solution Approach 1:
The patent applies dynamics by designing the blocking element with the ability to transition between different states. The blocking element is pretensioned to prevent unwanted movement during normal operation, but when an authorized actuation force is applied, the system dynamically transitions to allow movement. The movement lock mechanism enables the blocking element to be reset from its engaged position back to its initial position, ensuring that the system remains reliable during operation but is easy to reset when needed.
Solution Approach 2:
The patent changes the operational parameters of the blocking element based on the actuation state. During normal operation, the blocking element maintains a pretensioned state with high resistance to movement. When authorized actuation occurs, the parameter changes to allow the blocking element to move and reset. This parameter change ensures that the blocking element provides reliable protection during operation but can be easily reset when properly actuated, resolving the contradiction between reliability and ease of operation.
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
Effectively prevents unintended movement of the blocking element or actuator, ensuring secure locking even under external impulses, and allows authorized actuation to restore normal operation.
Implementation Method 1
a tension spring, which has one end at a distance from the pivoted lever bearing is connected to the pivoting lever and is mounted with the other end at a distance from the pivoting lever bearing
Implementation Method 2
a mass that can be brought into contact with the pivoted lever, preferably a ball, can be provided, which can move freely in an associated recess and which, when the pivoted lever is subjected to an impulse in its rest or release position, exerts an impulse on it
Data Source
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AI summary
The invention relates to a movement lock for a locking element or an actuator in a locking system which can be operated in a mechanical or mechatronic manner. Provision is made here for the movement lock to have a blocking element which can be brought into engagement with the locking element or actuator by a system which is prestressed or is set in motion - and can be triggered by external application of pulses to the locking system.