Door Lock Assembly Wedge-Shaped Multi-Point Sealing

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Solution Overview

Problem

Traditional door entry systems have a single or dual point of locking connection between the door panel and frame, making them susceptible to forced opening, and often fail to effectively seal against environmental elements like noise, weather, and insects due to inadequate sealing mechanisms.

Innovation Solution

A door lock assembly with a movable locking element that includes a deadbolt or drive assembly and a latch assembly, featuring wedge-shaped locking elements and a coupler system, which provides enhanced sealing and locking capabilities by mechanically cooperating to secure the door in both locked and unlocked positions, and operates independently of the locking mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional single or dual point locking mechanisms are used, then the door can be locked in the closed position, but the door is susceptible to forced opening due to insufficient locking force distribution

Engineering Contradiction:
Improvelocking strengthVSAvoidresistance to forced entry
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The locking system is divided into multiple independent locking elements (first locking element, second locking element, third locking element) distributed at different points along the door edge. Each locking element can engage independently with corresponding strike plates, distributing the locking force across multiple locations rather than concentrating it at a single point, thereby improving resistance to forced entry.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking elements are arranged in a vertical dimension along the edge of the door panel, extending from the top to the bottom. This vertical distribution creates multiple engagement points at different heights, transforming a single-point locking system into a multi-point system that spans the vertical dimension, making forced entry more difficult.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Object-affected harmful factors

If separate weather stripping is added to provide sealing, then sealing capability is improved, but the complexity of the door assembly increases

Engineering Contradiction:
Improvesealing against environmental elementsVSAvoiddoor assembly complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The locking elements are designed to perform dual functions: mechanical locking and sealing. The locking elements incorporate sealing surfaces that engage with corresponding strike plates to create weather seals, eliminating the need for separate weather stripping components. This integration reduces assembly complexity while maintaining effective sealing against environmental elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Each locking element serves multiple purposes: it provides mechanical locking engagement, creates weather sealing, and contributes to the overall structural integrity of the door assembly. This multi-functionality reduces the total number of components needed and simplifies the overall door assembly.

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

3Reliability

If multiple locking elements are distributed along the door edge, then resistance to forced entry is improved, but the device complexity increases

Engineering Contradiction:
Improveresistance to forced entryVSAvoidlocking mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking elements are designed to be movable relative to the door panel, allowing them to transition between engaged and disengaged states. This dynamic capability enables the locking system to provide enhanced security when needed while maintaining ease of operation, as all locking elements can be simultaneously engaged or disengaged through a single actuating mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A drive assembly acts as an intermediary mechanism that simultaneously actuates multiple locking elements. This intermediary component translates a single user input (such as turning a key or operating a deadbolt) into coordinated movement of all locking elements, simplifying the user interface while maintaining the benefits of multiple locking points.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10612282B2Door lock assembly for a dwelling
Publication Date: 2020.04.07 OTTO LLC
  • US10612282B2 patent drawing
  • US10612282B2 patent drawing
  • US10612282B2 patent drawing

AI summary

The present invention is directed to a door lock assembly for use with a door, comprising a movable locking assembly disposed within a recess formed in an edge of a door panel having one or more movable wedge shaped locking elements disposable between a locked position and an unlocked position, a drive assembly operatively coupled to the movable locking assembly for moving the movable locking elements between the locked and unlocked positions, and a latch assembly configured for coupling the door to a door frame and operable independently of the movable locking assembly.