Child-Resistant Blister Package With Deactivatable Latching Sleeve
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Solution Overview
Problem
Existing packaging solutions for small items like tablets or medicine doses lack designs that are both child-resistant and senior-friendly, failing to provide a secure locking mechanism that is difficult for young children to open but easily accessible by senior citizens.
Innovation Solution
A compact package design featuring a hollow plastic sleeve with a sliding blister card and a locking mechanism that requires simultaneous actions to transition from a storage to a dispensing position, combined with a deactivation mechanism for easy access when needed, ensuring child-resistant properties while being senior-friendly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to prevent children from opening the package, then child resistance is improved, but the complexity of opening the package increases making it difficult for senior citizens
Solution Approach 1:
The package employs a dynamic locking mechanism where resilient tabs can be depressed to transition between locked and unlocked states. The latches are designed to engage automatically when the blister card is inserted, providing child resistance, but can be easily disengaged by applying pressure to the accessible tabs on the exterior of the package, enabling senior citizens to open it when needed.
Solution Approach 2:
The resilient tabs serve as intermediary elements between the user and the locking mechanism. These tabs provide a simple interface that seniors can manipulate to release the latches, while the latches themselves remain hidden and inaccessible to children. The tabs mediate the complex internal locking mechanism, presenting only a simple pressing action to the user.
2Reliability
If a locking mechanism with multiple components is used to achieve child-resistant rating, then security is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple locking functions into a unified mechanism where latches and resilient tabs work together as an integrated system. The latches engage with the blister card holder automatically, while the resilient tabs provide both the unlocking interface and the force transmission mechanism. This merging of functions reduces the number of separate components and simplifies the overall structure while maintaining security.
Solution Approach 2:
The locking mechanism incorporates self-latching and self-unlatching capabilities. When the blister card is inserted, the latches automatically engage with the holder without requiring manual intervention. Similarly, when pressure is applied to the resilient tabs, the latches automatically disengage and allow the card to be removed. This self-service feature eliminates the need for complex manual operation or additional actuating mechanisms.
3Ease of operation
If resilient tabs are made accessible for easy depression by seniors, then ease of operation is improved, but children may also be able to open the package
Solution Approach 1:
The package design applies different qualities to different locations: the resilient tabs are positioned on the exterior surface where they are accessible to seniors with larger fingers and greater dexterity, while the actual latching points and internal mechanisms are concealed within the package structure. The tabs are located in areas that are difficult for small children to reach or manipulate, creating a local quality difference in accessibility between adult and child users.
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 package achieves a child-resistant rating while allowing easy opening and closing by senior users, ensuring secure storage and dispensing of items while being environmentally friendly and cost-effective to manufacture.
Implementation Method 1
The opposed pair of side edges of the sleeve include a pair of opposed resiliently-depressible tabs for unlatching the latches from the latch-catchers when the pair of opposed tabs are simultaneously depressed
Data Source
AI summary
A package for storing and dispensing tablets includes a blister card having blister compartments and a hollow plastic sleeve providing a protective housing for the blister card when the blister card is in a storage position within the sleeve. The sleeve includes a pair of latches that extend toward the blister card, and the blister card includes a pair of latch-catchers for cooperatively engaging and catching the latches when the blister card is in a storage position to automatically lock the blister card in the storage position within the sleeve when the blister card is slid to the storage position. The sleeve also includes a deactivator positionable between a first position in which the blister card is permitted to automatically lock to the sleeve when the blister card is slid to the storage position and a second position for preventing the blister card from becoming locked to the sleeve.