Sliding Door Locking Arm Geometry Against Forced Unlocking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sliding doors lack secure locking mechanisms that prevent unauthorized opening, particularly in closed positions, and are vulnerable to forced unlocking.
Innovation Solution
A sliding door with a locking device featuring a pivotable locking arm mounted on a horizontal axis, actuated by an electromechanical system, which locks in a position angled greater than 0° to the vertical, obstructed by the upper horizontal sash frame profile, and includes a locking bolt for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vertical locking arm is used, then the locking mechanism is simple, but it is vulnerable to forced unlocking with tools
Solution Approach 1:
The locking arm is designed with an asymmetric angular orientation (α > 0°) relative to the vertical axis, creating a non-standard geometry that prevents symmetric tool insertion and forced unlocking attempts. This asymmetric configuration makes it difficult for tools like screwdrivers or rods to engage with the locking mechanism, thereby enhancing security against forced unlocking.
2Reliability
If the locking arm is positioned vertically, then the structure is compact, but it allows forced unlocking with tools
Solution Approach 1:
The locking arm is oriented at an angle α > 0° from the vertical, creating an asymmetric position that blocks tool access while maintaining compact dimensions. This angular offset prevents tools from being inserted vertically into the locking mechanism, providing protection against unauthorized opening without requiring excessive extension of the locking arm.
3Reliability
If a robust locking mechanism is implemented, then security is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism employs an asymmetric angular orientation (α > 0°) of the locking arm, which provides robust security against break-in attempts by preventing tool engagement. This asymmetric design achieves enhanced security without significantly increasing device complexity, as it utilizes a simple geometric modification rather than adding multiple components or mechanisms.
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 provides a robust and easy-to-use locking mechanism that effectively prevents forced unlocking and unauthorized opening, ensuring secure closure.
Implementation Method 1
movable from an unlocked position into a locked position by means of a pivoting movement by an electromechanical actuator
Implementation Method 2
locking arm (508), which is pivotably mounted on the base element (501) about a horizontal axis of rotation A
Data Source
Figure 1a~1b
Figure 1c~1e
Figure 2
AI summary
A sliding door comprises at least the following: a vertically alignable frame (300) which, in the vertical orientation, preferably has at least two vertical and at least one upper and one lower horizontally oriented frame members; a sliding sash (1) which is slidably guided in the frame (300), wherein the sliding sash (1) is slidably guided horizontally in the frame in the vertical orientation; wherein the sliding sash (1) has a sash frame (100) which is formed from at least one lower horizontal sash frame profile (150), two vertical sash frame profiles (110, 120) and one lower horizontal sash frame profile (140).In this arrangement, a base element (501) of a locking device (500) is inserted into the upper horizontally oriented frame member (340) of the frame 300, wherein the locking device (500) has a locking arm (508) which is pivotably mounted on the base element (501) and can be moved from an unlocking position to a locking position by an actuator (502) by a pivoting movement, and wherein the locking arm (508) in its locking position has an angle α to the vertical which is greater than 0°.