Display Hook Locking Mechanism for Controlled Merchandise Access
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Solution Overview
Problem
There is a need for devices and systems that prevent the easy removal of small, expensive items from display hooks, showcases, cabinets, and fixtures with doors, drawers, and sliding doors, as these items are often targeted by shoplifters due to their accessibility.
Innovation Solution
A locking device is provided that includes an outer housing with a cylindrical shell and a barrel spring, which biases the shell to an unlocked position, and a cylinder plug with a keyhole and tumblers, allowing the device to be securely locked onto display hooks and other fixtures, preventing unauthorized removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If merchandise is displayed on protruding rods or hooks for easy customer access, then customer convenience and display visibility are improved, but the ease of unauthorized removal by shoplifters increases
Solution Approach 1:
The locking device is segmented into multiple functional components: an outer housing for structural support, a cylindrical shell for key operation, a cylinder plug with tumblers for security, and a barrel spring for biasing. This segmentation allows each component to perform its specific function while collectively providing both customer accessibility and theft prevention.
Solution Approach 2:
The locking device acts as an intermediary between the merchandise and the customer. It allows authorized customers to access merchandise through key operation while blocking unauthorized removal. The device mediates the interaction by providing controlled access without requiring constant security personnel intervention.
2Object-affected harmful factors
If a locking device is added to secure merchandise on display hooks, then security against shoplifting is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The locking device is designed to be universally applicable to various display hook types and merchandise configurations. The outer housing can accommodate different sized rods, and the cylindrical shell with key operation provides a standardized interface for securing various items, reducing the need for multiple specialized locking solutions.
Solution Approach 2:
The barrel spring provides automatic biasing of the cylindrical shell, eliminating the need for additional springs or complex biasing mechanisms. The key-operated cylinder plug automatically engages and disengages the locking position, providing self-service operation without requiring manual manipulation of multiple components.
3Reliability
If a key-operated locking mechanism is used to secure fixtures and displays, then security and unauthorized removal prevention are improved, but the ease of operation and customer self-service capability decrease
Solution Approach 1:
The barrel spring is pre-loaded to automatically bias the cylindrical shell into the locked position when the key is removed. This preliminary action ensures that the locking mechanism is always in a secure state by default, requiring only simple key insertion and rotation for operation, thereby maintaining high security reliability while preserving ease of operation.
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
The locking device effectively secures display hooks and other fixtures, preventing the removal of items and deterring shoplifting by requiring a key to unlock and remove the lock, thus enhancing security in retail environments.
Implementation Method 1
a barrel spring at least partially contained within the interior of the outer housing. The barrel spring is configured to bias the projection of the cylindrical shell away from the first channel to an unlocked position
Data Source
AI summary
Locking devices that may be used with product display hooks, cabinets, and drawers are provided. A locking device according to one implementation comprising a housing and a shell. The housing includes an outer wall that defines an interior. The housing further includes a channel extending at least partially through the interior of the housing. The shell includes a projection. The shell is at least partially disposed within the interior of the housing and is moveable in a longitudinal direction within the interior of the housing. In an unlocked position, the projection is biased away from the first channel. In a locked position, the projection is maintained in the first channel.