Rotating Security Strap Tag with Tension-Triggered Alarm
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Solution Overview
Problem
Current security devices attached to straps around products are ineffective due to their ease of removal or detection avoidance, particularly in cases where straps are made of non-conductive plastic, making it difficult to detect tampering or theft.
Innovation Solution
A security device with a rotatable cap and engagement member that increases tension on straps by rotational engagement, transitioning to a locked state and incorporating a collar with reception slots and alternating sliding surfaces to maintain orientation and detect any reduction in tension, triggering an alarm if the straps are compromised.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If security devices are attached to products, then theft deterrence is improved, but ease of removal increases making them ineffective
Solution Approach 1:
The patent applies preliminary action by pre-attaching the security device to the strap during manufacturing, so that the device is already in place and functional before the product leaves the manufacturing facility. This ensures the security device cannot be easily removed or bypassed, as it is integrated into the strap structure itself rather than being a separate attachment.
Solution Approach 2:
The patent uses the strap as an intermediary element that connects the security device to the product. The strap serves as a mediator between the security device and the packaged goods, allowing the device to monitor the integrity of the packaging without being directly attached to the product itself. This intermediary approach maintains security while accommodating various product types.
2Ease of manufacture
If straps are made of plastic to reduce cost, then manufacturing cost decreases, but detection of strap removal becomes difficult
Solution Approach 1:
The patent replaces mechanical detection methods with optical detection. Instead of using conductive materials that require electrical sensors, the invention incorporates a visual indicator element on the strap that changes appearance when the strap is cut or removed. This optical approach allows detection using simple visual inspection or optical sensors, maintaining compatibility with plastic straps while enabling effective monitoring.
Solution Approach 2:
The patent applies color changes as a detection mechanism by incorporating visual indicators on the strap that change color or appearance when the strap integrity is compromised. This allows the security system to detect strap removal or cutting through visual inspection or optical sensing, eliminating the need for expensive conductive materials while maintaining detection capability.
3Reliability
If multiple straps are used to secure packaging, then security against removal is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a single security device that can effectively monitor multiple straps simultaneously. The device is configured to detect integrity changes on more than one strap, allowing one security device to perform the function of multiple individual monitoring devices. This reduces overall system complexity while maintaining enhanced security through multi-strap monitoring.
Data Source
AI summary
A security device may include a rotatable cap and an engagement member. The cap may be graspable by an operator during attachment of the security device to at least a first strap extending substantially around a portion of an object. The engagement member may be configured to engage the first strap. The engagement member may also be substantially fixed in relation to the cap during the attachment of the security device to the first strap and the engagement member may be rotatable with the cap. The security device may be transitioned to a locked state responsive to rotational engagement of the engagement member with the first strap. The rotational engagement of the engagement member with the first strap may also increase tension on the first strap.