Blister Pack Tray With Pen And Pivotable Flap For Child Resistance
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Solution Overview
Problem
Existing packaging systems for blister packs, such as those disclosed in US20070261984A1 and US2010/0264054 A1, fail to securely lock multiple blister packs inside a tray-shaped slide and housing, risking separation and potential access by children, while additional process steps are required for connecting blister packs to the tray-shaped slide, making it difficult for multiple packs.
Innovation Solution
The tray-shaped slide is equipped with a pen that extends through the blister pack passages and features a pivotable flap and a pivotable part on the housing, preventing the tray-shaped slide from fully sliding out and ensuring all elements are connected, forming a secure, child-resistant package.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tray-shaped slide is designed to slide fully out of the housing, then easy access to blister packs is achieved, but the blister packs can be separated from the housing and accessed by children
Solution Approach 1:
The package employs dynamic elements including a pivotable flap that can move between locked and unlocked positions, and a tray-shaped slide that can be partially or fully extracted. The flap pivots to engage with the housing wall, dynamically transitioning between states to provide both security and access as needed.
Solution Approach 2:
The package is divided into separable components: the housing, the tray-shaped slide, and the pivotable flap. This segmentation allows the tray to be partially extracted for controlled access while the flap provides an additional locking layer, enabling differentiated access levels that prevent child access while maintaining adult convenience.
2Quantity of substance
If multiple blister packs are stacked inside the tray-shaped slide, then product capacity is increased, but securing all blister packs becomes more difficult
Solution Approach 1:
The pen-shaped element serves multiple functions: it acts as a structural support for stacking multiple blister packs vertically, provides a locking mechanism by extending through passages in each pack, and serves as an engagement point for the pivotable flap. This multi-functional design secures multiple blister packs simultaneously without requiring separate fastening mechanisms for each pack.
Solution Approach 2:
The blister packs are stacked vertically one inside another within the tray-shaped slide, with each pack nested along the pen element. The passages in each blister pack are aligned to accommodate the pen, creating a nested arrangement where multiple packs are secured together through the common pen structure and the overlying flap.
3Reliability
If additional connection mechanisms are added to secure blister packs to the tray-shaped slide, then security is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The invention merges the securing function into existing structural elements: the pen is integrated into the tray-shaped slide as a single piece, the passages are molded directly into the blister packs, and the pivotable flap is connected to the tray structure. This consolidation eliminates the need for separate connection mechanisms, reducing manufacturing steps while maintaining security.
4Ease of operation
If the tray-shaped slide can be fully removed from the housing, then complete access is achieved, but the package loses its child-resistant properties
Solution Approach 1:
The pivotable flap is positioned to preemptively block the tray-shaped slide from being fully extracted. When the tray is pulled outward, the flap pivots to engage with the housing wall before complete removal can occur, preventing the tray from reaching a position where children could access the blister packs. This preliminary blocking action maintains child resistance while allowing controlled adult access.
Data Source
Figure 1A~1B
Figure 2
Figure 3~5
AI summary
A package (33) for products packed in blister packs (21) comprises a housing (14), a tray-shaped slide (1) which is slidably accommodated in the housing in a sliding direction (P1) as well as a number of blister packs stacked inside the tray-shaped slide. The tray-shaped slide comprises a bottom wall (2) and side walls (3-6) connected to the bottom wall. The tray-shaped slide is provided with a pen (15), whilst each blister pack is provided with a passage (24), wherein the pen of the tray-shaped slide extends through the passages of all blister packs stacked inside the tray-shaped slide.