Can Cover With Integrated Pointer And Scale Lines For Date Tracking
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Solution Overview
Problem
Canned food can spoil if not consumed promptly after opening, and users often forget the opening date, leading to health issues from consuming expired food.
Innovation Solution
A can cover with a time indication function, featuring a rotating pointer and scale lines on its surface to track the number of days since opening, allowing users to easily identify the opening date and avoid consuming spoiled food.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a simple can cover is used without any indication mechanism, then the device complexity is low, but the user cannot track the opening date and may consume spoiled food
Solution Approach 1:
The patent combines the sealing function and the time-tracking function into a single integrated can cover structure. The pointer mechanism is built into the cover body itself, eliminating the need for separate tracking devices while maintaining food safety through both sealing and date monitoring
Solution Approach 2:
The can cover automatically tracks time through its own integrated pointer mechanism that rotates to indicate elapsed days. The system serves itself by mechanically recording the opening date without requiring external tools or manual intervention beyond the initial opening action
2Loss of information
If a time indication system with pointer and scale lines is added to the can cover, then the opening date can be tracked clearly, but the device complexity increases
Solution Approach 1:
The patent uses visual contrast through different colors or shading on the scale lines to clearly indicate the current day versus previous days. This visual differentiation makes the opening date information immediately recognizable without complex displays or additional components
Solution Approach 2:
The time tracking scale is divided into discrete daily segments represented by individual scale lines. Each scale line represents one day, creating a simple segmented visual scale that is easy to manufacture and interpret without requiring continuous or complex measurement mechanisms
3Area of stationary object
If the scale lines are made small and densely packed to save space, then the cover surface is utilized efficiently, but the user cannot easily observe and read the date
Solution Approach 1:
The patent applies different visual properties to different parts of the scale lines. The current day's scale line has enhanced visual characteristics (such as different color, length, or position) compared to previous days, making it easily distinguishable without requiring all scale lines to be large or prominent
4Manufacturing precision
If the pointer is made rigid and fixed, then the manufacturing precision can be maintained, but the pointer cannot rotate to indicate different days
Solution Approach 1:
The patent transforms the pointer from a fixed rigid component to a dynamic rotating component that can change its angular position. The pointer is connected through a rotation mechanism that allows it to indicate different days while maintaining precise positioning through mechanical stops or magnetic alignment features
Data Source
AI summary
The disclosure provides a can cover with a time indication function, and pertains to the technical field of food containers. The can cover comprises a cover body, and the can cover also comprises an indicating system for indicating the opening date of a can; the indicating system comprises a pointer and a plurality of scale lines; the scale lines are positioned on the surface of the cover body; the pointer is arranged on the surface of the cover body; one end of the pointer can rotate or swing in the range of the scale lines, and points to one of the scale lines. The can cover can indicate the opening date of the can, and assist a user to remember the opening date of the can, so that the opening date of the can can be known clearly, and bad and out-of-date canned food is avoided being eaten.