Door Fitting Device Integrated Locking Slide Rail
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Solution Overview
Problem
Existing door fitting devices face assembly and optical disadvantages due to the complexity and number of individual components, leading to increased effort and aesthetic issues.
Innovation Solution
A door fitting device with a simplified assembly design featuring a force-transmitting slide rail body and an electrically switchable locking device integrated into the slide rail, which interacts with a counter-device on the door leaf to securely hold the door in a closed position, using a common mounting plate for the drive housing and counter-device to streamline installation and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple individual components are used in door fitting devices, then functional requirements can be met, but assembly effort and device complexity increase
Solution Approach 1:
The patent combines the locking device and counter-device into an integrated assembly that works together as a unified system. The locking device includes a locking element and locking surface, while the counter-device includes a counter element and counter surface, forming a coordinated mechanism that reduces overall component count while maintaining functional reliability.
Solution Approach 2:
The slide rail body serves multiple functions: it guides the sliding arm for door closure operation and simultaneously houses the locking device. This multi-functional design reduces the need for separate structural components, thereby reducing overall device complexity while maintaining operational reliability.
2Reliability
If multiple individual components are used in door fitting devices, then functional requirements can be met, but assembly effort increases
Solution Approach 1:
The locking device and counter-device are designed as pre-assembled units with integrated mounting features. The locking device can be mounted on the stationary door frame and the counter-device on the door leaf as coordinated assemblies, reducing the number of separate assembly steps and minimizing assembly effort while ensuring reliable operation.
Solution Approach 2:
The locking and counter-elements are pre-positioned and pre-aligned during manufacturing to ensure proper interaction. This preliminary arrangement of components simplifies the final assembly process by pre-establishing the geometric relationships needed for reliable operation, reducing on-site assembly complexity.
3Reliability
If multiple individual components are used in door fitting devices, then functional requirements can be met, but aesthetic appearance deteriorates
Solution Approach 1:
By integrating the locking and counter-locking mechanisms into unified assemblies, the patent reduces the number of visible separate components. The combined design allows for smoother, more streamlined housing structures that improve aesthetic appearance while maintaining the functional reliability of the locking mechanism.
Data Source
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AI summary
The door fitting device has bands (3) that are mounted in a stationary door frame (2), a door drive (5), and a drive housing (5g) having an output shaft (5w) and a force-transmitting linkage provided with a sliding arm and a guide rail. A slide rail is mounted on the door frame, and an electrically switchable lock is set cooperating with a counter (6). The lock is arranged outside the movement path of slide rail or in a direction parallel to the chambers. The force-transmitting linkage is mounted on the fixed door frame as a structural unit.