Door Lock Safety Device Using Magnetic Force
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Solution Overview
Problem
Existing door locks with self-locking mechanisms are prone to false triggering due to manipulative actuation, leading to unsafe and uncontrolled door states, particularly when the latch and additional latch are manipulated simultaneously, causing the lock to lock itself and preventing the door from being closed self-sufficiently.
Innovation Solution
A lock with a safety device that can be moved between a locking and release position using a magnetic force, preventing the guide element from moving into the locked position unless the safety device is transferred to the release position, which requires external magnetic influence, thus enhancing tamper-proofing and preventing unauthorized manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a self-locking mechanism with multiple latches is used to prevent unauthorized opening, then security against unauthorized opening is improved, but susceptibility to manipulative actuation causing false triggering increases
Solution Approach 1:
A safety device acts as an intermediary between the actuating mechanism and the locking mechanism. This safety device includes a blocking element that can be moved into a blocking position to prevent the locking mechanism from engaging, serving as a protective mediator that blocks harmful manipulative actions while allowing legitimate operation
Solution Approach 2:
The safety device applies preliminary anti-action by positioning the blocking element to prevent false triggering before it can occur. The blocking element is pre-positioned to block the locking mechanism, and only moves out of the blocking position when a legitimate closing action is detected, thereby preventing harmful actions in advance
2Reliability
If the blocking element is positioned to prevent false triggering, then protection against manipulation is improved, but ease of legitimate operation may be worsened
Solution Approach 1:
The safety device transitions from a static blocking state to a dynamic responsive state. The blocking element is dynamically positioned to block false triggering during normal operation, but automatically moves to a non-blocking position when the door is properly closed, thereby maintaining both security and ease of legitimate operation through dynamic adaptation
Solution Approach 2:
The safety device performs self-service by automatically detecting the legitimate closing action and moving the blocking element out of the blocking position without requiring manual intervention. The system monitors its own state and autonomously transitions from blocking to non-blocking mode when appropriate conditions are met
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 solution significantly increases protection against manipulation by requiring a magnetic force to move the safety device, making it difficult to trigger the lock's self-locking action inadvertently, thus ensuring the door remains secure and can be closed reliably.
Implementation Method 1
The transfer of the safety device into the locking position or into the release position takes place via a magnetic, in particular a permanent magnetic and/or an electromagnetic, force effect which acts on the safety device
Data Source
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AI summary
The invention relates to a lock (1) for a door (3), in particular a self-locking door lock, with a lock case (11) in which at least one locking element (10) is movably mounted and is movable between a position (4) projecting from the lock case (11) and a position (5) retracted into the lock case (11), a mechanism (100) integrated in the lock case (11) which has a guide element (12) movable within the lock case (11) which can be moved into a locked position (13) and into a release position (14), wherein in the locked position (13) the guide element (12) prevents movement of the locking element (10) from the projecting position (4) into the retracted position (5), and in the release position (14) allows movement of the locking element (10) into the retracted position (5), wherein the lock (1) has a safety device (30) which can be moved into a locking position (31) and into a release position (32) can be brought,wherein in the locking position (31) the safety device (30) is operatively connected to the guide element (12) such that movement of the guide element (12) into the locked position (13) is prevented, and wherein in the release position (32) the safety device (30) is operatively disconnected from the guide element (12), so that the safety device permits movement of the guide element (12) into the locked position (13). According to the invention, the transition of the safety device (30) into the release position (32) is effected by a magnetic, in particular a permanent magnetic and/or an electromagnetic, force acting on the safety device (30).