Encapsulated Door Locking Coupling Device
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Solution Overview
Problem
Existing door and window locking devices have complex structures, require significant space, and are prone to malfunction due to dust and wear, leading to unreliable operation.
Innovation Solution
A compact, encapsulated locking device with a drive motor, slide element, and force transmission element, protected within a housing, which allows for reliable operation and simplified assembly, featuring automatic length compensation and malfunction protection through a spring element and stop mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex door locking device is used to ensure reliable operation, then the reliability is improved, but the device complexity and installation space increase
Solution Approach 1:
The locking device is divided into functionally independent modules: an actuating device for engaging/disengaging the locking element, and a coupling device for connecting the actuating device to the locking element. This segmentation allows each module to be optimized independently, reducing overall complexity while maintaining reliability.
Solution Approach 2:
The coupling device is designed as a separate, extractable module that can be removed and replaced independently. This extraction principle simplifies installation and maintenance, as the coupling device can be pre-assembled and tested separately before integration into the complete locking system.
2Reliability
If a complex door locking device is used to ensure reliable operation, then the reliability is improved, but the installation time increases
Solution Approach 1:
The coupling device is pre-assembled as a complete functional unit before installation in the final application. This preliminary assembly includes pre-positioning all coupling components and verifying proper engagement, which significantly reduces on-site installation time and eliminates complex assembly steps during installation.
3Ease of manufacture
If the locking device components are exposed to the environment, then the ease of manufacture is improved, but the reliability deteriorates due to dust and wear
Solution Approach 1:
The coupling components are nested within a protective housing that encloses the internal mechanisms. This nested structure protects sensitive components like the lever nut and lever element from environmental contaminants while maintaining a compact overall form factor that is easy to manufacture and install.
Solution Approach 2:
A protective shell or housing encloses the coupling device components, creating a sealed environment that prevents dust and contaminants from entering. This shell can be manufactured as a simple extrusion or injection-molded part, maintaining ease of manufacture while providing reliable protection.
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 reliable, compact, and easy-to-assemble locking device that prevents damage from dirt and wear, ensuring consistent operation and secure door or window release.
Implementation Method 1
The force transmission element is slidably coupled to the slide element and can be displaced relative to the slide element against the force of a spring element
Data Source
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AI summary
A locking device (10) for a sash of a door or window, with a coupling device (12) for coupling a handle nut (14) with a lever element (16) actuating a locking element, is designed and further developed with regard to reliable release using simple design means such that the coupling device (12) has a drive motor (18), a sliding element (20), a force transmission element (22) effecting the coupling and a housing (24), wherein the sliding element (20) can be displaced by means of the drive motor (24) along a displacement direction (26), wherein the force transmission element (22) is coupled to the sliding element (20) and wherein the drive motor (24) and the sliding element (20) are encapsulated in the housing (24) and the displacement of the sliding element (20) is limited by stops.