Display Hook Lock Bar Mechanism Against Sweeping Theft

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Solution Overview

Problem

Existing display hooks lack effective theft deterrence, particularly against 'sweeping' methods where shoplifters quickly remove merchandise by sliding products off the hooks, leading to significant losses.

Innovation Solution

A new display lock system with a rotatable lock bar and pin mechanism that secures merchandise to the display hook, allowing for easy key access and transition between locked and unlocked states, combined with a protective cover to secure the hook to a support structure, preventing removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If display hooks are used without locks, then ease of operation is improved, but theft prevention deteriorates

Engineering Contradiction:

Improveease of loading and unloading merchandiseVSAvoidtheft prevention

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A lock mechanism acts as an intermediary between the display hook and the merchandise. The lock includes a lock bar that can be positioned to engage with the hook, preventing sweeping theft, while a key-operated release mechanism allows authorized personnel to easily open and reload merchandise. This intermediary device provides both security and controlled access.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If lock mechanisms are added to display hooks, then theft prevention is improved, but device complexity increases

Engineering Contradiction:

Improvetheft preventionVSAvoidcomplexity of display hook system

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The display hook system is segmented into distinct functional components: the base hook structure for holding merchandise, the lock bar for preventing sweeping, and the key-operated release mechanism for controlled access. This segmentation allows each component to perform its specific function efficiently while maintaining overall system simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of making the entire display hook complex with integrated security features, the invention inverts the approach by adding a separate, simple lock mechanism that attaches to the existing hook. The lock bar can be positioned to engage with the hook in a straightforward manner, and the key release provides simple operational control without complicating the base hook design.

Inventive Principle:

Principle #13The other way round (Inversion)

3Object-affected harmful factors

If lock bar is made secure against rotation, then theft prevention is improved, but ease of operation for legitimate access deteriorates

Engineering Contradiction:

Improvetheft preventionVSAvoidease of key access and opening

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The lock mechanism is designed so that the key-operated release system automatically performs the work of unlocking. When the key is inserted and turned, it directly actuates the release mechanism that disengages the lock bar, eliminating the need for complex manual manipulation or multiple steps to open the lock.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8534469B2Inventory display lock

Publication Date: 2013.09.17 FASTENERS FOR RETAIL INC

AI summary

A display lock system and display lock used therein are provided. The display lock system includes a display hook having a display lock attached thereto. The display lock includes a lock body attached to a bar of the display hook and a lock bar that surrounds a second bar of the display hook. A lock arrangement operates between the lock body and the lock bar to selectively permit and prohibit movement of the lock bar relative to the lock body.