Door Lock Drive Bolt Latching for Faster Installation and Repair
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Solution Overview
Problem
Existing locking devices for door assemblies require complex installation and maintenance processes, necessitating full disassembly and reassembly for component replacement or adjustment.
Innovation Solution
A locking device design featuring a coupling means with a receptacle and a locking element that allows drive bolts to be automatically coupled and decoupled without screws, facilitated by a spring-loaded locking element that can be actuated through the faceplate or drive rod, enabling easy installation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the locking device is fully pre-assembled for installation, then installation security and reliability are improved, but installation complexity and time consumption increase
Solution Approach 1:
The locking device is divided into modular components: a pre-assembled locking device body (faceplate with drive means) and separately installable drive bolts. This segmentation allows the main locking mechanism to be installed first, then drive bolts added individually by simply plugging them into receptacles on the drive rods, eliminating time-consuming fastening operations while maintaining structural integrity.
Solution Approach 2:
The coupling means incorporates self-latching receptacles that automatically secure drive bolts through a simple plug-in motion. The receptacle design with its opening facing away from the drive means allows the drive bolt to be automatically coupled without screws or additional installation steps, enabling quick installation while ensuring reliable connection.
2Stability of the object's composition
If the locking device is fully pre-assembled, then structural stability is improved, but ease of maintenance and component replacement deteriorate
Solution Approach 1:
The locking device separates the stable locking device body from the replaceable drive bolts. The body remains permanently mounted on the door leaf providing structural stability, while drive bolts can be independently removed and replaced by simply unplugging them from the coupling means, facilitating easy maintenance without disturbing the main locking mechanism.
Solution Approach 2:
The drive bolts are designed as extractable components that can be removed from the locking device body. The coupling means with its open receptacle allows drive bolts to be easily extracted and replaced, enabling maintenance and component replacement without disassembling the entire locking device or removing it from the door assembly.
3Strength
If traditional fastening methods are used for drive bolts, then connection strength is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The coupling means features self-latching receptacles that automatically secure drive bolts through a simple plug-in motion. The receptacle design with its opening facing away from the drive means allows the drive bolt to be automatically coupled without screws or additional installation steps, enabling quick installation while ensuring reliable connection.
Solution Approach 2:
The coupling means integrates the receptacle, locking mechanism, and drive rod interface into a single unified component. This merging of functions allows the drive bolt to be secured to the drive rod through a simple plug-in operation that combines positioning and locking in one action, reducing installation complexity while maintaining connection strength.
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
Simplifies installation and maintenance by allowing drive bolts to be easily connected and disconnected, reducing time and effort while maintaining structural stability and security.
Implementation Method 1
The locking element can be preloaded into the coupling position by means of a spring element, in particular by means of a preferably helical compression spring
Data Source
AI summary
The invention relates to a locking device (10) for a door leaf (204) of a door assembly (200), having a faceplate (12), a drive means (14) attached to the face plate (12), and at least one drive rod (21, 22) extending along a longitudinal direction (20), wherein the drive rod (21, 22) can be driven by the drive means (14) and can be displaced along the longitudinal direction (20) when driven by the drive means (14), wherein a respective coupling means (25) for coupling to a drive bolt (26, 27) is attached to the at least one drive rod (21, 22), wherein the coupling means (25) has a receptacle (30) in which the drive bolt (26, 27) can be inserted with an end section (26′), wherein the coupling means (25) and the drive bolt (26, 27) are configured such that the drive bolt (26, 27) is coupled to the coupling means (25) by latching when the end section (26′) is inserted into the receptacle (30).A door assembly (200) and a method for installing a locking device (10) on the door assembly (200) are disclosed.