Clamping Pivot Lock with Rotational Actuation
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Solution Overview
Problem
Existing door and window locking devices cause damage and dirt accumulation due to screwing and actuation mechanisms, and they do not provide reliable operation without exerting force on the pivoting devices.
Innovation Solution
A locking device with a fastening unit that clamps onto the edges of a door or window, featuring a stopper unit that engages with an abutment via a rotational actuation unit, preventing displacement without damaging the surface and maintaining cleanliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If door arresters are attached to the door leaf by means of screws, then the locking function is achieved, but drilled holes are caused and areas around the door arrester become dirty
Solution Approach 1:
The device is divided into separate functional units: a fastening unit that attaches to the door edge without penetrating the surface, and a stopper unit that provides the locking function. This segmentation allows the fastening mechanism to be positioned away from the active locking area, preventing dirt accumulation on the door surface while maintaining reliable locking through the stopper's engagement with the abutment.
Solution Approach 2:
The door edge itself serves as an intermediary element between the fastening unit and the stopper unit. The fastening unit attaches to the door edge, which then transmits the locking force to the stopper unit. This intermediary approach eliminates the need for direct screw attachment to the door leaf, avoiding both drilled holes and dirt accumulation on the door surface.
2Reliability
If a door arrester is actuated to lock the door, then the locking function is achieved, but areas around the door arrester become dirty
Solution Approach 1:
The stopper unit, which is responsible for the actual locking function and potential dirt accumulation, is extracted from the door surface and repositioned to engage with an abutment on the floor or threshold. This extraction removes the source of dirt accumulation from the door leaf, while the fastening unit maintains secure attachment without surface penetration.
Solution Approach 2:
The locking mechanism is transitioned from a two-dimensional plane on the door surface to a three-dimensional engagement between the stopper unit and the abutment. By moving the stopper's engagement point to a different spatial dimension (the floor/threshold level), the door surface remains clean while the locking function is maintained through vertical engagement rather than horizontal surface mounting.
3Reliability
If a locking device exerts force on the pivoting device to secure it, then the locking function is achieved, but the pivoting device may be damaged or strained
Solution Approach 1:
Instead of the locking device exerting force on the door to prevent opening, the device allows the door's own weight and closing force to act on it, with the stopper unit simply providing a stopping point against the abutment. This inverted approach eliminates the need for the locking mechanism to actively push or pull on the door, preventing strain on hinges and door structure while maintaining effective locking.
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 device securely locks doors or windows without damaging them, operates reliably, and maintains cleanliness by avoiding direct contact with dirty areas, ensuring effective engagement with the abutment without exerting force on the pivoting device.
Implementation Method 1
an operative connection is provided between the actuating unit and the stopper unit in such a way that a rotational displacement of the actuating unit leads to a translatory displacement of the stopper unit
Implementation Method 2
The engagement of the stopper unit with the abutment has the effect that displacement of the pivotable device is prevented
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to a device for securing a pivotable element, such as a door, a window or the like, comprising a fastening unit (2) for fastening the device to an edge of the pivotable element, a stopper unit (4), which is designed to engage with an abutment, and an actuating unit (6), which is mounted on the fastening unit (2) and is operationally connected to the stopper unit (4) such that a rotary movement of the actuating unit (6) generates a translatory movement of the stopper unit (4).