Lock Cylinder Mounting Support with Compression Fastening
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Solution Overview
Problem
Existing solutions for installing opening and closing devices on lock cylinders often require modifying the door or lock components, or necessitate a minimum 5 mm protrusion of the cylinder, which can compromise security measures and increase installation costs.
Innovation Solution
A support system that allows installation with a minimum 1.5 mm distance between the cylinder and the door surface, using a base structure with a tightening system and fastening elements that exert pressure to secure the device without altering the lock or requiring special cylinders, accommodating various lock profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cylinder protrudes at least 5 mm from the door surface for stable fastening of the support, then the support can be securely installed, but the security measures are compromised and installation costs increase
Solution Approach 1:
The invention changes the fastening parameter from requiring 5 mm protrusion to working with only 1.5 mm protrusion. The support structure includes a compression mechanism that applies radial pressure to the cylinder, creating secure fastening through friction and normal stress rather than relying on protrusion depth. This parameter change resolves the contradiction by maintaining fastening stability while reducing the harmful effect of security compromise.
Solution Approach 2:
The invention replaces the traditional mechanical fastening system (screws requiring deep protrusion) with a compression-based system. The support includes elements that compress against the cylinder surface, generating holding force through friction and normal stress. This substitution allows secure installation with minimal protrusion, eliminating the need to compromise security measures for fastening stability.
2Reliability
If the cylinder protrudes at least 5 mm from the door surface, then the support can be stably fastened, but the installation cost increases
Solution Approach 1:
The invention changes the protrusion parameter from 5 mm to 1.5 mm, allowing use of standard cylinders without modification. The support structure incorporates compression elements and friction-based fastening that are effective at reduced protrusion depths, eliminating the need for expensive custom cylinders or door modifications while maintaining installation reliability.
Solution Approach 2:
The support structure is designed to be universal, working with standard lock cylinders of various profiles (Euro, American, oval, round) without requiring modification. The compression-based fastening system provides stable installation across different cylinder types with minimal protrusion, reducing installation costs by eliminating the need for specialized components or door alterations.
3Ease of operation
If the support is installed on the door surface or lock projection, then the opening and closing device can be mounted, but the door or lock components must be modified
Solution Approach 1:
The invention replaces modification-based installation (cutting, drilling, or altering the door/cylinder) with a compression-based fastening system. The support structure applies radial pressure to the cylinder surface, creating secure attachment through friction and normal stress. This substitution enables easy device installation while preserving the integrity of the door and lock components.
Solution Approach 2:
The support structure acts as an intermediary between the lock cylinder and the opening/closing device. It includes adaptation elements that interface with the cylinder surface and transmission elements that transfer the compression force. This intermediary mechanism enables device installation without direct modification of the door or lock components, maintaining ease of operation while avoiding manufacturing complexity.
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
Enables secure and cost-effective installation of opening and closing devices on a wide range of locks without modifying the door or lock components, maintaining security features and reducing logistical complexities.
Implementation Method 1
fastening elements (5) inserted in said holes, which have the same orientation as the opening, enabling contact between the fastening elements and the end of the cylinder of the lock, so that a pressure is exerted by a tightening system
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a fastening support which enables an opening and closing device to be incorporated in a conventional lock, made up of a base structure (1) comprising a tightening system which, when compressed, deforms the base structure (1) on the projection of the lock cylinder (8) with respect to the surface of the door, by means of the walls of the opening (1.4) and fastening elements with grooves (5) inserted into holes (1.3) of the very base structure (1), without needing to perform perforations or mechanising operations in any element.