Strike Plate Release Device for Cylinder-Free Bolt Retraction
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Solution Overview
Problem
Existing strike plates with release devices for mechanical locking of doors or windows do not support bolt retraction without a lock cylinder, and their complexity hinders simpler unlocking processes.
Innovation Solution
The release device is attached to the main surface of the strike plate, allowing for adjustable alignment and integration with a separate release plate for door opening or bolt withdrawal, enabling bolt retraction without a lock cylinder, with an adjustable release stop and stepwise adjustment mechanism for variable alignment with locking systems or electromagnetic door openers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional strike plate with release device is used for mechanical locking, then the door can be locked securely, but the bolt retraction cannot be activated without a lock cylinder and the structure becomes more complex
Solution Approach 1:
The release device is extracted from the traditional integrated strike plate design and positioned separately on the main surface, allowing the strike plate to function without a lock cylinder while still enabling bolt retraction through the separate release mechanism
Solution Approach 2:
The locking system is segmented into distinct functional components: the strike plate with latch cutout, the separate release device with release stop, and the release plate. This segmentation allows each component to be optimized independently and simplifies the overall structure by eliminating the need for a lock cylinder
2Adaptability or versatility
If the release device is fixed in position on the strike plate, then the manufacturing is simpler, but the alignment with the lock plane and electromagnetic door opener cannot be adjusted
Solution Approach 1:
The release device is made adjustable rather than fixed, allowing it to be positioned at different locations on the main surface of the strike plate. This dynamic positioning capability enables alignment with different lock planes and electromagnetic door openers while maintaining a relatively simple manufacturing process
Solution Approach 2:
The strike plate design with an adjustable release device and release stop can accommodate multiple types of locking systems, including mechanical locks without cylinders and electromagnetic door openers. The adjustable release stop can be positioned to work with different lock geometries, making the system universally applicable
3Adaptability or versatility
If the release stop is fixed in the longitudinal direction, then the manufacturing is easier, but it cannot be adapted to different geometric configurations of the locking plate
Solution Approach 1:
The release stop is designed to be adjustable in the longitudinal direction along the main surface of the strike plate. This allows the release stop to be repositioned to match different geometric configurations of the locking plate and release plate, accommodating various lock designs without requiring complex mechanisms
Data Source
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AI summary
The system has a self-locking door lock provided with a trigger element that is automatically actuated for locking a door leaf (2) by a closing operation of the door leaf. The door lock is arranged in a door frame (1) having an electromagnetic door opener for opening of the self-locking door lock, where the lock includes a latching bolt. A transmission element is connected with the trigger element, where the trigger element is acted upon a two-armed lever, and the latching bolt is released by the transmission element actuated by moving a locking lever into a closed position.