Electromechanical Locker Retrofit for Cashless Access Control

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Solution Overview

Problem

Coin-operated lockers are limited by their reliance on cash payments and the inconvenience of lost keys, leading to high replacement costs and reduced adoption due to their durability and expense.

Innovation Solution

Retrofitting coin-operated lockers with electromechanical lock units that can operate on a communications network, using conduits to connect electrical conductors and attach the units without altering the locker frames, incorporating intelligent logic circuitry and physical locking functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If coin-operated locks are used, then the lockers can be operated with cash payments, but the lockers cannot accommodate card-based payment methods and users may lose keys

Engineering Contradiction:
Improvepayment method compatibilityVSAvoiduser convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces mechanical coin-operated locks with electromechanical lock units that accept card-based payments and electronic access codes, eliminating the need for physical keys and cash while maintaining the locking functionality through electronic control mechanisms

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The electromechanical lock units are designed to support multiple access methods including card swiping, code entry, and electronic key fobs, making the lockers adaptable to various payment and access systems while replacing the single-function mechanical coin lock

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

2Adaptability or versatility

If coin-operated locks are replaced, then modern payment methods can be used, but the lockers require expensive replacement rather than retrofitting

Engineering Contradiction:
Improvepayment system modernizationVSAvoidretrofitting cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The lock system is divided into separate modular components: the electromechanical lock unit, the control circuitry, and the mounting hardware, allowing the locking mechanism to be replaced independently without replacing the entire locker structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a mounting bracket or adapter that interfaces between the existing mechanical lock mounting points and the new electromechanical lock unit, serving as an intermediary that enables retrofits without requiring complete structural replacement of the locker

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If conduits are installed to connect electromechanical lock units, then electrical conductors can be routed without drilling into frames, but the conduit installation requires additional hardware and assembly steps

Engineering Contradiction:
Improveframe integrity preservationVSAvoidconduit installation complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent uses pre-fabricated conduit assemblies that are designed as single-use installation components, eliminating the need for permanent modifications to the frame while the conduit itself serves as a temporary routing solution that can be removed or replaced easily

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The conduits are pre-routed and pre-assembled with mounting hardware before installation, allowing the entire conduit system to be installed as a complete unit without requiring on-site drilling or complex wiring routing decisions during the retrofit process

Inventive Principle:
Principle #10Preliminary action

4Reliability

If electromechanical lock units are attached to conduits, then the lockers can be secured with modern locking mechanisms, but the ability to disassemble hardware to access contents is significantly limited

Engineering Contradiction:
Improvelocking securityVSAvoidaccessibility for maintenance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The electromechanical lock unit is designed with a removable or detachable component that can be extracted from the conduit assembly, allowing authorized personnel to access the locking mechanism for maintenance while the conduit remains permanently mounted to maintain security

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The lock unit incorporates a dynamic access mechanism that transitions between a locked state (where the lock unit is secured to the conduit) and a maintenance state (where the lock unit can be detached or opened), allowing the system to adapt its accessibility based on operational needs

Inventive Principle:
Principle #15Dynamics

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, convenient, and cost-effective operation using credit/debit cards, reduces key loss issues, and preserves the value of existing lockers by allowing networked management and easier maintenance.

Implementation Method 1

an electromechanical portion that provides for physical locking functionality

Methodology Applied
Scientific EffectElectromagnetic force: Electromagnet

Data Source

PatentUS9936804B2System and method for retrofitting coin-operated lockers
Publication Date: 2018.04.10 BEST LOCKERS LLC
  • US9936804B2 patent drawing
  • US9936804B2 patent drawing
  • US9936804B2 patent drawing

AI summary

A method of manufacturing an electromechanical locker system may include providing a set of lockers with coin-operated locks. The coin-operated locks may be removed from the set of lockers. A conduit may be extended along and connected to a frame member from which the coin-operated locks had previously been positioned. Electromechanical lock units may be attached to the conduit so as to replace the coin-operated locks. A retrofitted coin-operated locker bank may include a coin-operated locker bank including a multiple lockers having respective doors, where the coin-operated locker bank is free of coin-operated locks. A conduit may be connected to a frame member and extend vertically adjacent to the hinged doors of a column of lockers. Multiple electromechanical lock units may be attached to the conduit so as to replace the coin-operated locks.