Jacket Laminated Structure for Image Transfer Device Workability
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Solution Overview
Problem
Existing jacket designs for image transfer devices have poor workability in attachment and detachment due to exposed high-hardness edges, which complicates the process.
Innovation Solution
A jacket with a laminated structure comprising a base layer, an elastic layer, and a surface layer, where the elastic layer or surface layer has a lower hardness than the base layer and protrudes in the rotation axis direction, improving attachment and detachment by preventing edge overlap and enhancing protection and adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the jacket uses a high-hardness base layer for durability and structural integrity, then the strength and reliability are improved, but the workability in attachment and detachment deteriorates due to exposed high-hardness edges
Solution Approach 1:
The patent applies different hardness properties to different parts of the jacket structure. The base layer maintains high hardness for structural integrity, while the elastic layer provides lower hardness at the end edges for improved workability. This local differentiation of material properties resolves the contradiction between strength and ease of operation.
Solution Approach 2:
The jacket employs a composite structure with a base layer and an elastic layer having different material properties. The base layer provides structural strength while the elastic layer with lower hardness prevents the harmful effects of exposed high-hardness edges, enabling both durability and ease of attachment/detachment.
2Device complexity
If the jacket has a simple single-layer structure, then the device complexity is reduced, but the protection and adhesion performance deteriorates
Solution Approach 1:
The patent uses a composite structure with a base layer and an elastic layer, each serving specific functions. The base layer provides structural support while the elastic layer enhances protection and adhesion. This composite approach improves reliability without excessive complexity.
Solution Approach 2:
The patent changes the hardness parameter between layers, with the elastic layer having lower hardness than the base layer. This parameter differentiation enables the elastic layer to provide better protection and adhesion properties while maintaining overall structural integrity.
3Manufacturing precision
If the end edges of the base layer are exposed, then the manufacturing precision is simplified, but the workability in attachment and detachment deteriorates due to edge overlap complications
Solution Approach 1:
The elastic layer is positioned to cover the end edges of the base layer, creating a local quality difference where the softer elastic material provides protective coverage. This prevents the harmful effects of exposed high-hardness edges during attachment and detachment operations.
Solution Approach 2:
The elastic layer acts as an intermediary between the high-hardness base layer and the external environment during attachment and detachment. It mediates the interaction by providing a softer contact surface that prevents edge overlap complications while maintaining the structural integrity of the base layer.
Data Source
AI summary
A jacket includes: a first layer that is on a cylinder body side when the jacket is attached to a rotating cylinder body; and a second layer that is a layer located on a side opposite to the cylinder body with respect to the first layer, has a hardness lower than that of the first layer, and does not exist at a position where at least one of end edges of the cylinder body in a rotation axis direction is located inward of the first layer in the rotation axis direction.