Telescoping Wire Conduit for Universal Door Lock Adaptability

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Solution Overview

Problem

Existing electrical locking systems face challenges in adapting to various door thicknesses, leading to increased complexity and costs due to the need for multiple inventory models and potential installation errors.

Innovation Solution

The introduction of a telescoping wire conduit that can be extended and locked to accommodate different door thicknesses, allowing for a single locking system model to be used across multiple door sizes by providing a flexible electrical connection between the outer and inner housings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different locking system models are provided for different door thicknesses, then adaptability to various door sizes is improved, but device complexity and inventory management complexity increase

Engineering Contradiction:
Improveadaptability to various door thicknessesVSAvoidinventory management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal locking system model that can accommodate multiple door thicknesses through a telescoping wire conduit. The conduit can be adjusted to different lengths and positions, allowing a single lock model to function across various door sizes (e.g., 1.375" to 2.5" thicknesses), thereby eliminating the need for multiple specialized models and simplifying inventory management.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The wire conduit is designed with dynamic adjustability, allowing it to be extended or retracted to different lengths and positions depending on the door thickness. This dynamic characteristic enables the locking system to adapt to various door configurations without requiring multiple fixed models, resolving the contradiction between adaptability and complexity.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If a fixed-length wire conduit is used, then manufacturing precision is improved, but adaptability to various door thicknesses deteriorates

Engineering Contradiction:
Improveconduit length precisionVSAvoidadaptability to door thicknesses
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The wire conduit incorporates a telescoping mechanism that allows it to be adjusted to different lengths and positions after manufacturing. This dynamic adjustment capability enables a single precision-manufactured conduit to serve multiple door thickness requirements, resolving the contradiction between manufacturing precision and adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The wire conduit is divided into adjustable segments or sections that can be extended or retracted to achieve the required length and positioning for different door thicknesses. This segmentation allows the conduit to maintain manufacturing precision while gaining adaptability through configuration adjustments.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If multiple locking system models are maintained for different door sizes, then adaptability is improved, but installation error probability increases

Engineering Contradiction:
Improvecoverage of door size variationsVSAvoidinstallation error rate
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

By implementing a universal locking system model with an adjustable wire conduit, the patent reduces the number of different models that need to be selected and installed. This universality minimizes the opportunity for installation errors related to model selection and ensures consistent installation procedures across different door sizes, thereby improving reliability while maintaining adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3607158B1Locking system for door, and extendible wire conduit therefore
Publication Date: 2024.01.24 DORMAKABA CANADA INC
  • EP3607158B1 patent drawingFigure 1A
  • EP3607158B1 patent drawingFigure 1B
  • EP3607158B1 patent drawingFigure 2A~2B

AI summary

The locking system can have an outer housing mounted to an outside face of the door, and an inner housing mounted to an inside face of the door, a wire conduit mounted to one of the inner housing and the outer housing and extending across the door to the other one of the inner housing and the outer housing, the wire conduit having two telescoping members, and at least one wire extending inside the wire conduit and connected between a first locking system component housed in the outer housing and a second locking system component housed in the inner housing.