Concealed Cutter Mechanism for Safe Tablet Cutting

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Solution Overview

Problem

Conventional tablet cutting devices pose safety risks due to exposed cutters, often leading to accidents among users, especially the elderly, and suffer from operational difficulties and cutter degradation over time.

Innovation Solution

A safe tablet cutting device featuring a container with a cover and a suspension body, where the cutter is concealed within the device, protected by positioning elements and a reinforcement structure, ensuring the cutter is only exposed when in use and securely hidden when not in use, preventing accidental cuts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cutter is exposed in conventional tablet boxes, then the cutting operation can be performed, but the user may cut their finger due to poor eyesight or obtuse action

Engineering Contradiction:
Improvecutting operationVSAvoidfinger cutting
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A flexible blade guard is introduced as an intermediary component between the user's finger and the cutter. The blade guard is positioned to cover the cutter when not in use, and can be moved aside during cutting operations, providing a protective barrier that prevents accidental cuts while allowing intentional cutting.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The blade guard is designed to be movable rather than fixed, allowing it to dynamically adjust its position. It can be moved aside during cutting operations and returns to its protective position when not in use, providing adaptive protection based on operational needs.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If a plate is slid in the tablet box along sliding rails to hide the cutter, then the cutter is protected, but friction between the plate and sliding rail causes wear and operation difficulty

Engineering Contradiction:
Improvecutter exposureVSAvoidplate movement
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The blade guard is made of flexible material rather than a rigid plate sliding on rails. This flexibility eliminates the friction and wear problems associated with sliding mechanical components, while still providing effective coverage and protection for the cutter.

Inventive Principle:
Principle #30Flexible shells and thin films

3Object-affected harmful factors

If the cutter is isolated by a flexible piece, then the cutter is protected, but the flexibility of the piece may suffer fatigue after a period of time, resulting in ineffective isolation

Engineering Contradiction:
Improvecutter isolationVSAvoidisolation effectiveness
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The blade guard is constructed from composite materials that combine flexibility with enhanced durability and fatigue resistance. This maintains the protective isolation function over extended use while preventing the degradation that would compromise safety.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS10420706B2Safe tablet cutting device
Publication Date: 2019.09.24 ANHUI E LINK PLASTIC IND CO LTD
  • US10420706B2 patent drawing
  • US10420706B2 patent drawing
  • US10420706B2 patent drawing

AI summary

A safe tablet cutting device includes a container, a cover, a cutter, and a suspension body. A platform in the container provides tablet positioning. First and second positioning elements are configured between a back end of the container and the platform. The cover is hinged to the back end of the container. The suspension body has its back end freely rotatable but confined between the first and second positioning elements when the cover is opened or closed. The suspension body has a slot opening corresponding to the cutter configured on the inside of the cover so that the cutter is properly concealed behind the suspension body and, when the cover is closed, gradually exposed to cut the tablet. The safety and applicability of the tablet cutting device is as such enhanced.