Cylindrical Packing Sheet for Cartridge Storage and Display
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Solution Overview
Problem
Conventional packing methods for image forming cartridges require individual boxes for each type of cartridge, leading to inefficient storage and potential distortion of product information displayed on heat-shrinkable films, making it difficult to read characters, graphics, or codes.
Innovation Solution
A packing method using a cylindrical sheet with a heat-contracting first portion and an elastic second portion, where the sheet is bonded and tensioned to surround the cartridge, ensuring the display information remains legible and securely attached, reducing storage needs by using common boxes and sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If shrink packing is effected using a heat-shrinkable film with printed product information, then storage space for packing materials is reduced, but the display portion with information loses its shape and becomes difficult to read
Solution Approach 1:
The cylindrical sheet is divided into two distinct portions: a first portion with heat contraction property for shrinking, and a second portion with higher elasticity that maintains shape. This segmentation allows each portion to perform its specific function without interfering with the other, resolving the contradiction between shrinkage and shape maintenance.
Solution Approach 2:
Different regions of the cylindrical sheet are assigned different material properties: the first portion has heat contraction properties for securing the packaging, while the second portion has higher elasticity to maintain the display portion's shape and readability. This local differentiation of material qualities enables both shrinkage and shape preservation simultaneously.
2Loss of information
If individual boxes are prepared for each cartridge type with printed product information, then all product information can be displayed, but a large storage space is required for packing materials
Solution Approach 1:
The cylindrical sheet serves multiple functions: it provides structural support for the cartridge, displays product information through its surface, and secures the packaging through heat contraction. This universal design replaces the need for multiple specialized boxes, reducing storage space while maintaining all necessary information display capabilities.
Solution Approach 2:
The invention changes the physical state of the cylindrical sheet from an expanded, flexible state during assembly to a contracted, rigid state after heating. This parameter change allows the same structure to accommodate different cartridge types while maintaining consistent information display quality, eliminating the need for type-specific boxes.
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 method effectively suppresses distortion of displayed information and ensures secure packaging, reducing storage requirements while maintaining readability of product details.
Implementation Method 1
said first portion having a heat contraction property
Implementation Method 2
said second portion having an elasticity higher than that of said first portion
Data Source
AI summary
A packing member includes a structure for accommodating an object-to-be-accommodated and a cylindrical sheet for covering the structure. The cylindrical sheet includes a first portion having a heat contraction property and includes a second portion having an elasticity higher than that of the first portion. The first portion has a display portion. The display portion is provided on a surface extending along a predetermined direction of the structure. Free end portions of the first portion and the second portion contract to surround an end surface of the structure crossing the predetermined direction of the structure.