Roll Material Length Indicator Using Diagonal Markings
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Solution Overview
Problem
Existing solutions for indicating the remaining length of rolled materials are inaccurate and require specialized printers or are difficult to read, leading to wastage as users often replace rolls prematurely.
Innovation Solution
A dispenser assembly with a sheet material featuring a diagonal indicator line and corresponding markings on the housing slot, allowing for accurate visual indication of the remaining material length without the need for specialized printers, adjustable to suit various materials and printers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a physical or mechanical indicator measures the radius of the cross-section of the rolled material, then the remaining length can be indicated, but the device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent extracts the indication function from complex mechanical measurement devices and implements it through a simple visual marking system. A colored line is printed directly on the material surface at a specific distance from the end, eliminating the need for mechanical radius measurement devices while providing accurate remaining length indication.
Solution Approach 2:
The patent uses a simple, inexpensive printed colored line instead of expensive mechanical indicators. The marking is applied directly to the material using standard printing techniques, making it a low-cost solution that does not require specialized components or complex mechanisms.
2Ease of manufacture
If a colored line is printed near the end of the material to warn the user, then the indication method is simple, but the measurement precision is insufficient and the line is difficult to read from a distance
Solution Approach 1:
The patent uses a colored line printed on the material surface to provide visual indication of the remaining length. The color marking is positioned at a specific distance from the material end, allowing users to easily see and read the indication from a distance while maintaining manufacturing simplicity through standard printing processes.
3Ease of manufacture
If the colored line indicates only that the end is near, then the ease of manufacture is good, but the loss of information occurs as no exact amount of material remaining is provided
Solution Approach 1:
The patent segments the indication into multiple colored lines positioned at different distances from the material end. Each line represents a specific remaining length threshold, allowing users to understand the exact amount of material remaining rather than just receiving a generic warning. This segmented approach provides detailed information while maintaining ease of manufacture through standard printing.
Data Source
AI summary
A dispenser assembly including a remaining length indicator, comprising a sheet material including an inner end, an outer end, an initial edge, a terminal edge, and an indicator line arranged on the sheet material, and a plurality of markings operatively arranged to engage the indicator line to indicate a length of the sheet material remaining.