Universal Multipoint Lock Assembly with Adjustable Drive Rail
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Solution Overview
Problem
The existing multipoint lock mechanisms are not easily adaptable to different door types, leading to difficulties in sourcing compatible replacements, increased costs for locksmiths and end-users due to the need for frequent door replacements, and inefficiencies in securing premises when mechanisms fail.
Innovation Solution
A universal multipoint locking kit with a faceplate, gearbox, and drive rail comprising two struts and spacer members, allowing for adjustable bolt positioning and easy assembly by snapping or cutting components to fit various door heights and configurations, enabling the lock to be adapted to a range of door types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional multipoint lock mechanisms are used with standardized grooves, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The drive rail is divided into multiple modular sections with standardized connection interfaces. Each section can be independently selected and combined to match different door groove configurations, allowing the lock mechanism to adapt to various door types while maintaining precise manufacturing standards for each module.
Solution Approach 2:
The lock mechanism incorporates a universal mounting interface system that can accommodate multiple door groove standards. The drive rail and faceplate are designed with adjustable positioning features that enable the same lock body to function across different door configurations, eliminating the need for completely different lock mechanisms for each door type.
2Adaptability or versatility
If multiple lock types are stocked for different door types, then adaptability is improved, but device complexity increases
Solution Approach 1:
A single universal lock mechanism design incorporates adjustable components that can be configured for different door types. The standardized drive rail sections and mounting interfaces allow one lock model to replace multiple specialized locks, simplifying inventory while maintaining the ability to serve various door configurations.
Solution Approach 2:
The lock mechanism includes dynamically adjustable elements such as repositionable drive rail sections and adjustable faceplate mounting positions. These dynamic features allow the lock to be adapted to different door heights and groove positions without requiring multiple fixed-design lock types, reducing inventory complexity.
3Reliability
If door replacements are performed instead of lock replacements, then reliability is improved, but loss of substance increases
Solution Approach 1:
The universal lock mechanism can be installed in existing door grooves without requiring door replacement. The adaptable mounting system allows the lock to be secured to the door using the existing groove structure, enabling lock replacement while preserving the door and avoiding material waste from door disposal and replacement.
Solution Approach 2:
The lock mechanism design allows for replacement of only the lock components rather than the entire door assembly. The standardized mounting interfaces enable the lock to be installed in existing door grooves, recovering the value of the existing door while discarding only the faulty lock mechanism, thus reducing material waste.
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~1F
AI summary
A universal multipoint lock (10) has a gear box (16) drivable by means of a handle to displace a drive rail (14). The gear box may be located at either of at least two thickness positions spaced from the edge of a door leaf into which a standard sized lock fitting groove (11,13) is formed in order to correspond with the predetermined location of the door handle of a prefabricated door leaf (5). The drive rail 14 is comprised of two parallel drive struts (34) spaced by a spacer to form a slot able to accommodate securing screws and the action of bolt features such as a hook bolt member (24). Each rail strut is provided with engaging features comprising regularly spaced recesses (38) which engage with corresponding features such as a tongue (39) of a drive plate of a hook bolt assembly (18). The spacing of the gear box and bolt features (18) (23) can therefore be varied to fit into the preformed recesses of any pre-existing door. A faceplate (12) is formed with weakening grooves which allow it to be separated into portions (12H, 12C, 12G) which allow the gear box, hook bolt and cam bolt to be secured in position according to the location of the recesses. Infill portions (12P) of the faceplate are of various heights enabling the space in the groove (11) to be infilled.