Tapered Bottle Security Housing with Ratchet Strap
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Solution Overview
Problem
Existing bottle security devices are vulnerable to unauthorized removal, as they can be manually manipulated, gripped with tools, or broken to pry them off the bottle neck, and lack a secure locking mechanism for easy store personnel access during purchase.
Innovation Solution
A security device with a tapered housing and ratchet strap that is difficult to grasp or pry off, featuring a locking mechanism with one-way teeth and a spring-biased locking pawl, and an arcuate channel for the strap, which secures the device to the bottle neck and includes an EAS tag for theft detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flat plastic strap is used in the security device, then the device can be manufactured simply, but the strap can be easily manipulated and the device can be removed from the bottle neck
Solution Approach 1:
The patent applies curvature to the strap by forming it into a loop configuration that wraps around the bottle neck, creating a curved path that is more difficult to manipulate and remove compared to a flat strap. The curved geometry provides mechanical advantage in securing the device while maintaining manufacturing simplicity.
2Ease of manufacture
If the housing has flat outer surfaces, then the housing is easy to manufacture, but the housing can be easily grasped and pryed off the bottle neck
Solution Approach 1:
The housing incorporates curved or tapered outer surfaces instead of flat surfaces, making it more difficult to grasp with tools or fingers. The curved geometry distributes applied forces and prevents effective leverage points for prying, while still being manufacturable using standard forming processes.
Solution Approach 2:
The housing features asymmetric surface geometry with tapered or curved surfaces that are not uniform in all directions. This asymmetry prevents symmetrical grasping and prying actions, making manual manipulation more difficult while maintaining manufacturing feasibility through asymmetric molding or forming processes.
3Reliability
If a locking mechanism is added to secure the strap to the housing, then unauthorized removal is prevented, but the device becomes more complex
Solution Approach 1:
The locking mechanism is designed to be self-actuating through the natural motion of the strap. When the strap is inserted and tensioned, it automatically engages the locking action without requiring separate manual operations. This self-service approach provides secure locking while minimizing additional complexity compared to mechanisms requiring multiple separate actions.
Solution Approach 2:
The locking mechanism integrates multiple functions into a single component system, combining the strap, housing, and locking elements into a unified structure. This merging reduces the number of separate parts and assembly steps while maintaining the security function, thereby limiting the increase in overall device complexity.
4Reliability
If the housing is made with tapered surfaces to prevent grasping, then unauthorized removal is made difficult, but the housing requires more precise manufacturing
Solution Approach 1:
The housing geometry incorporates tapered surfaces with optimized angles that balance security functionality with manufacturing feasibility. The taper angles are selected to provide effective anti-grasping properties while remaining within standard manufacturing tolerances and capabilities, avoiding the need for excessively precise manufacturing.
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 device effectively prevents unauthorized removal by deflecting impact forces and making manual grasping difficult, while allowing easy unlocking by store personnel, thus enhancing security and reducing theft risks.
Implementation Method 1
a spring-biased locking pawl
Implementation Method 2
The housing has first and second opposed outer surfaces which taper outwardly and toward one another in a manner which makes the housing difficult to grasp manually, or otherwise, and which also serve to deflect impact forces to the housing
Data Source
AI summary
A security device includes a housing and a strap which extends from the housing and loops around a bottle neck or other item to secure the device thereto. A locking mechanism lockably engages the strap when the strap is inserted into the housing to secure the strap in a locked position. The housing has first and second opposed outer surfaces which taper outwardly and toward one another in a manner which makes the housing difficult to grasp manually or otherwise, thus helping prevent the breakage and removal of the device from the bottle. The tapered outer surfaces also serve to deflect impact forces to the housing to help prevent unauthorized removal of the device.