Access Control Device Intermediary Barrier Member
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Solution Overview
Problem
Existing access control devices for doors often require additional holes for cabling or wires, which can compromise the fire rating of fire doors and complicate installation, especially when dealing with various standard mortice lock configurations.
Innovation Solution
An access control device that secures locking and user interface components to an intermediary barrier member with pre-drilled holes, allowing for alignment and fixing without additional holes in the door, using a fixing member to transmit power and data signals, compatible with multiple international standard mortice lock configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional holes are drilled in the door for cabling or wires, then electrical power and signal data can be transmitted between components, but the fire rating of the door is compromised and installation becomes more complex
Solution Approach 1:
The patent introduces an intermediary barrier member with pre-drilled holes that serves as a mediator between the door and the locking components. This member provides a mounting surface for electrical components and a pathway for cabling without requiring additional holes in the door itself, thus preserving the door's fire rating while enabling electrical connectivity.
Solution Approach 2:
The barrier member is provided with pre-drilled holes and pre-configured mounting positions before installation. This preliminary preparation allows components to be mounted without additional drilling or complex installation procedures, reducing installation complexity while maintaining door integrity.
2Adaptability or versatility
If multiple configurations or additional parts are added to accommodate varying international standard mortice locks, then compatibility with different lock standards is improved, but device complexity increases
Solution Approach 1:
The barrier member is designed with universal adaptability to accommodate multiple international standard mortice lock configurations (EN, Scandinavian SFS5208, American ANSI A156.2). It provides multiple sets of through holes at different positions and configurations, allowing a single device to serve multiple locking standards without requiring different specialized components for each standard.
Solution Approach 2:
The mounting system is segmented into multiple sets of through holes (first set, second set, etc.) with distinct positions, allowing selective use of appropriate hole configurations depending on the specific mortice lock standard being installed. This segmentation enables flexibility without requiring a completely different device for each standard.
3Strength
If additional through holes are made in the door for mounting locking components, then components can be securely fixed to the door, but the number of holes in the door increases compromising fire safety
Solution Approach 1:
The barrier member acts as an intermediary mounting surface that bears the mounting holes, not the door itself. Components are secured to the barrier member through its pre-drilled holes, providing secure mounting while the door remains intact with its original fire rating preserved.
Solution Approach 2:
The mounting function is extracted from the door structure and transferred to the separate barrier member. The holes needed for secure mounting are taken out of the door and placed in the barrier member instead, separating the mounting requirements from the door integrity requirements.
Data Source
AI summary
An access control device 3 comprising: a locking mechanism 1 for a moveable barrier 2; a first locking/user interface component 6 for positioning on a first side of the moveable barrier; and a second locking/user interface component 7 for positioning on a second side of the moveable barrier. The first and second components are arranged to be secured to an intermediary barrier member 4, provided with either a first set of through holes for a first alternative locking member or a second set of through holes for a second alternative locking member, the first set of through holes including a hole having a mutually distinct position from a hole included in the second set of through holes. The first and second components are provided with fixing apertures 19 21 corresponding to the first and second sets of through holes so that the components can be secured via a fixing 17 18 placed in a hole corresponding to either of the alternative locking members, without requiring additional through holes in the moveable barrier. A method of fitting an access control device is also provided.