Blister Pack Cutter With Elastic Blade Guide for Safer Segmentation
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Solution Overview
Problem
Existing cutting devices for blister packs are not structurally simple and functionally reliable, posing a risk of user injury due to unprotected blades during the cutting process.
Innovation Solution
A cutting device with a motor-driven blade holder and blade guide coupled via elastic intermediate pieces, featuring a locking mechanism and safety features to protect the blade until the cutting process, ensuring safe operation and preventing injuries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the blade is exposed during the cutting process, then the cutting operation can be performed, but the risk of user injury increases
Solution Approach 1:
The patent introduces a blade guide as an intermediary component between the blade holder and the blister pack. The blade guide has a recess that guides the blade during cutting while protecting the user from direct contact with the blade edge. The elastic intermediate piece acts as a mediator that transmits force from the blade holder to the blade guide while allowing controlled movement and maintaining safety distance until cutting is required.
Solution Approach 2:
The blade is nested within the blade guide structure, with the cutting edge positioned inside the recess of the blade guide. This nesting arrangement allows the blade to be protected within the guide structure during non-cutting phases while still enabling the blade to emerge and perform cutting when needed, effectively hiding the dangerous cutting edge during safe periods.
2Object-affected harmful factors
If the blade holder and blade guide are kept at a distance for safety, then user protection is improved, but the cutting efficiency decreases
Solution Approach 1:
The patent employs dynamic positioning of the blade relative to the blade guide through the elastic intermediate piece. During normal operation, the blade holder and blade guide are separated to maintain safety. When cutting is required, the system dynamically transitions to a compressed state where the blade emerges from the guide. This dynamic adjustment optimizes both safety during idle periods and cutting efficiency during operation.
Solution Approach 2:
The cutting mechanism operates through periodic compression and release cycles. The elastic intermediate piece stores energy during compression and releases it to drive the blade forward for cutting, then returns to its original state for safety. This periodic action allows the system to alternate between safe retracted position and active cutting position, maintaining both protection and productivity.
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
Enables safe and efficient cutting of blister packs with a single drive unit, protecting the blade until the cutting process, reducing the risk of user injury and ensuring precise cuts.
Implementation Method 1
the intermediate pieces (26) are designed to be elastic and are dimensioned such that - in a non-cutting phase - the cutting edge (34) of the blade (30) is positioned inside the recess (32) in order to effectively prevent injuries or damage caused by the blade edge (34), and - in a cutting phase, the cutting edge (34) of the blade (30) can emerge from the recess (32) to perform the cutting process
Data Source
Figure 1~2
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Figure 5~6
AI summary
The invention relates to a cutting apparatus for segmenting a tube blister pack (14), comprising a blade (30) which can be moved by means of a motor against an abutment (36), wherein the tube blister pack (14) can be guided between the abutment (36) and the blade (30), wherein the blade (30) is held in a cutting unit (22) comprising a blade holder (24), which can be moved back and forth by means of a motor, and a blade guide (28) which is provided with a cut-out (32) for the blade (30) to pass through and is coupled to the blade holder (24), wherein the blade holder (24) and the blade guide (28) are coupled to one another by means of at least one resilient intermediate piece (26). The invention enables very simple actuation by means of a single drive device which produces a back-and-forth or up-and-down movement, while at the same time ensuring that the blade is guided in a protected manner until just prior to the actual cutting operation, thereby effectively preventing injury to the user.