Blister Pack Protrusion for Sanitizing Product Expulsion
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Solution Overview
Problem
Conventional blister packs for sanitizing products are bulky due to lateral wings and suffer from instability during product application, leading to premature expulsion of sanitizing tablets from the pack before they can be properly attached to sanitary fixtures.
Innovation Solution
A blister pack design featuring a protrusion with a heat-sealed film that allows for easy removal and a grip element, eliminating the need for lateral wings, which minimizes deformation and ensures the sanitizing product remains contained until applied to the fixture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lateral wings are added to the blister pack to enable product expulsion, then the ease of operation is improved, but the volume of the package increases
Solution Approach 1:
The invention extracts the lateral wings from the blister pack structure, removing the bulky components while retaining the essential function of product expulsion through the modified cavity and film configuration
Solution Approach 2:
The invention transitions from a two-dimensional wing-based expulsion mechanism to a three-dimensional cavity structure where the protrusion and recessed region work together to enable product ejection without requiring lateral extensions
2Reliability
If the film is heat-sealed to close the blister pack, then the reliability of product containment is improved, but the stability of the system deteriorates during film removal
Solution Approach 1:
The film is heat-sealed only to the flat region of the blister pack, leaving the protrusion region unsealed. This localized sealing approach maintains containment where needed while avoiding the deformation issues that occur when the entire film is heat-sealed
Solution Approach 2:
The film sealing is segmented into two distinct zones: a heat-sealed portion attached to the flat region and a non-heat-sealed portion covering the protrusion. This segmentation allows the film to be removed without causing elastic or elasto-plastic deformation of the entire blister pack structure
3Ease of operation
If the protrusion exerts thrust action against the sanitizing product, then the ease of product expulsion is improved, but the risk of premature product ejection increases
Solution Approach 1:
The protrusion is pre-configured to exert thrust action against the sanitizing product, but this action is only activated when the user intentionally removes the film and applies force. The recessed region provides a stable containment zone that prevents premature activation of the thrust mechanism
Solution Approach 2:
The recessed region acts as a counterbalancing structure that prevents the protrusion from exerting unintended thrust on the product. By creating a stable, lower region for product accommodation, the design counteracts the potential for premature ejection while preserving the expulsion function when needed
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
Facilitates convenient and reliable application of sanitizing products without wings, reducing the risk of premature expulsion and maintaining product integrity during use.
Implementation Method 1
a film (21), which is heat-sealed to the blister pack only for a portion thereof
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A blister pack (1) for sanitizing products for sanitary fixtures and the like comprises a protrusion (2, 12) adapted to define a cavity (3) that protrudes from a flat region (5) of the blister pack and which is closed by a film (21), the protrusion (2) being adapted to exert a thrust action against a sanitizing product (4) accommodated inside the cavity (3) when the blister pack (1) is gripped by a user; the film (21) comprises a proximal portion (22) which is heat-sealed to the flat region (5) and a distal portion (23) which is not heat-sealed to the flat region (5).