Bidirectional Door-Locking System with Guiding Clip

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Solution Overview

Problem

Conventional door-locking systems for storage containers are limited by unidirectional activation, manual reactivation required for closure, complex and costly manufacturing of locking rods, rod vibrations in larger doors, and difficulty in installation on thin doors, making them inefficient and versatile.

Innovation Solution

A door-locking system with a supporting component, a driving component that moves between configurations, and a transmission component that moves between drawn-in and drawn-out configurations, allowing locking rods to engage and disengage with a catch-rod, enabling bidirectional activation and reducing manufacturing complexity and vibration issues through a guiding clip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional door-locking system uses a unidirectional pivoting mechanism, then the locking function is achieved, but the mechanism cannot be activated in multiple directions and requires manual reactivation for closure

Engineering Contradiction:

Improveoperation directionVSAvoidactivation versatility

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The locking mechanism transitions from a static unidirectional pivoting system to a dynamic bidirectional system where the driving component can rotate freely in both clockwise and counterclockwise directions, enabling versatile activation while maintaining reliable locking function through symmetrical engagement geometry

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The driving component is designed with universal rotational capability in both directions, allowing the same mechanism to serve multiple activation purposes (locking and unlocking) without requiring separate mechanisms or manual reactivation steps, thereby improving operational ease and versatility simultaneously

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If locking rods are manufactured using bending process, then the locking function is achieved, but the manufacturing becomes complex and costly

Engineering Contradiction:

Improvelocking reliabilityVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Instead of bending straight rods into complex shapes through costly bending processes, the invention inverts the approach by using straight rods with engagement features positioned at specific locations, achieving reliable locking through strategic geometry placement rather than complex forming processes, thereby simplifying manufacturing while maintaining locking reliability

Inventive Principle:

Principle #13The other way round (Inversion)

3Length of stationary object

If locking rods are used on doors of greater dimensions, then the locking coverage is improved, but vibrations occur in the locking rods

Engineering Contradiction:

Improvedoor dimensionVSAvoidrod vibration

Core Design Contradiction:

Length of stationary objectVSObject-affected harmful factors

Solution Approach 1:

A guiding clip is introduced as an intermediary component between the locking rod and the door structure, providing lateral guidance and constraint that prevents excessive movement and vibration of the locking rod while allowing it to maintain engagement with the catch rod, thereby eliminating harmful vibrations without compromising locking coverage on large doors

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If the mechanism is installed on relatively thin doors, then the applicability is improved, but the installation becomes difficult

Engineering Contradiction:

Improvedoor thickness adaptabilityVSAvoidinstallation difficulty

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The supporting component is divided into modular segments including a mounting plate with attachment means and a body portion, allowing the mechanism to be assembled in stages and adapted to thin door structures without requiring complex single-piece construction, thereby improving ease of installation while maintaining versatility across different door thicknesses

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10669754B2Door-locking system

Publication Date: 2020.06.02 ROUSU METAL

AI summary

A door-locking mechanism is for locking a door of a cabinet with respect to a main body of the cabinet. The door-locking mechanism includes a supporting component being operatively mountable onto the door, a driving component being operatively moveable with respect to the supporting component between at least first and second configurations, and at least one transmission component being operatively moveable with respect to the supporting component between drawn-in and drawn-out configurations. The door-locking mechanism also includes at least one locking rod being operatively connectable to the at least one transmission component and being movable between disengaged and engaged configurations with respect to a corresponding catch-rod of the cabinet, in response to the at least one transmission component being operated between the drawn-in and drawn-out configurations respectively, via an operation of the driving component from the first to the second configuration.