Pill Centering and Cutting Apparatus with Rack and Pinion
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Solution Overview
Problem
Existing pill cutters often result in uneven cuts and fragmentation when dividing pills, as they lack effective mechanisms to ensure precise alignment and controlled blade movement.
Innovation Solution
A pill cutting apparatus featuring a housing with a pill support trough, slidably supported blade members, and a rack and pinion mechanism that coordinates the movement of blade and pill positioning members to ensure precise alignment and controlled cutting, using resilient components to prevent damage to the pill.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a typical pill cutter with a single pivoting blade is used, then the device structure is simple, but the cutting uniformity deteriorates and fragmentation occurs
Solution Approach 1:
The single pivoting blade is segmented into a pair of opposed curved blades that move independently along curved paths. This segmentation allows each blade to apply force more evenly across the pill surface, eliminating the uneven cutting and fragmentation caused by a single blade while maintaining reasonable device complexity through the use of two coordinated cutting elements
2Device complexity
If no pill positioning mechanism is used, then the device complexity is reduced, but the manufacturing precision of pill alignment deteriorates
Solution Approach 1:
The pill positioning members perform preliminary alignment action before the cutting action occurs. The members engage with the pill to center it in the trough and align it with the blade path, ensuring precise positioning is achieved before the blades make contact, thereby improving alignment precision without requiring complex positioning mechanisms during the cutting stroke itself
3Strength
If rigid blade support members are used without resilient components, then the structural strength is improved, but the reliability deteriorates due to potential pill damage
Solution Approach 1:
Resilient components are integrated into the blade support members to provide beforehand cushioning during the cutting process. These resilient elements absorb excess force and accommodate variations in pill hardness and position, preventing damage to the pill while maintaining the structural strength needed for effective cutting through the resilient engagement of the blade support members with the pill
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 apparatus achieves uniform and clean cuts by ensuring precise alignment and controlled blade movement, reducing fragmentation and damage to the pill during the cutting process.
Implementation Method 1
the blade support members being resiliently urged away from respective converged, pill cutting positions and being retained by the housing in released positions thereof
Implementation Method 2
a rack and pinion mechanism engaged between the blade support members and the pill positioning mechanism which is configured to transfer movement of the blade support members to the pill positioning mechanism
Implementation Method 3
The rack and pinion mechanism may be resiliently engaged between the blade support members and the pill positioning mechanism to thereby prevent damage to a pill engaged by the pill positioning members
Data Source
AI summary
A pill positioning and cutting apparatus includes a housing a pair of push buttons slidably mounted within a housing and resiliently coordinated with a pair of pill positioning pistons slidably positioned in a pill support trough to position a pill in the trough for cutting engagement by converging blades which extend from the push buttons.