Image Reading Device Bonding Inhibiting Portion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image reading devices face challenges in removing the elastic plate member from the pressure plate body without tearing it, making it difficult to reuse the elastic plate member.
Innovation Solution
The image reading device incorporates a pressing portion with an elastic portion bonded to the cover portion, a sheet material attached to the elastic portion, and a bonding portion with a bonding inhibiting portion at its end. This configuration allows the elastic portion to be peeled off from the cover portion without tearing, by starting the peeling process from the bonding inhibiting portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the elastic plate member is fixed to the pressure plate body using double-sided tape at four corners, then the elastic plate member can be securely fixed, but it becomes difficult to remove without tearing when replacement is needed
Solution Approach 1:
The bonding area is segmented into two distinct zones: a bonding portion with strong adhesive properties and a bonding inhibiting portion that prevents bonding. This segmentation allows the elastic plate member to be firmly fixed in the bonding portion while enabling easy peeling at the bonding inhibiting portion, resolving the contradiction between secure fixation and ease of removal.
Solution Approach 2:
Different regions of the bonding area are given different properties: the bonding portion has high adhesive strength for secure fixation, while the bonding inhibiting portion has low or no adhesive properties for easy removal. This local differentiation of bonding characteristics allows simultaneous achievement of strong fixation and easy detachability.
2Reliability
If the elastic plate member is securely bonded to the pressure plate body, then reliable pressing force is achieved, but the elastic plate member cannot be reused after removal due to tearing
Solution Approach 1:
By dividing the bonding area into bonding and bonding inhibiting portions, the design enables complete removal of the elastic plate member from the bonding inhibiting portion while maintaining integrity. The elastic plate member can then be reused on another pressure plate body, achieving both reliable pressing function and reusability.
Solution Approach 2:
The bonding inhibiting portion is extracted as a distinct functional element from the bonding area. This extracted region serves as a dedicated peeling start point that allows the elastic plate member to be removed without tearing, enabling reuse while maintaining reliable pressing performance through proper rebonding.
3Ease of operation
If the entire bonding area is made removable, then easy removal is achieved, but the bonding strength between the elastic plate member and pressure plate body is compromised
Solution Approach 1:
The bonding area is divided into bonding and bonding inhibiting portions, so that only the bonding inhibiting portion is removable while the bonding portion maintains strong adhesion. This segmentation allows easy removal at specific locations without compromising overall bonding strength.
Solution Approach 2:
The bonding area exhibits local quality differentiation where the bonding portion provides strong adhesion for reliable fixation, while the bonding inhibiting portion provides easy removability. This local differentiation resolves the contradiction between strong bonding and ease of removal.
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
This solution enables the elastic portion to be removed without tearing, allowing for its reuse and improving the workability of the peeling process, while maintaining the bonding strength between the elastic portion and the cover portion.
Implementation Method 1
a bonding inhibiting portion interposed between the bonding portion and the cover portion, and inhibiting the bonding between the cover portion and the elastic portion
Implementation Method 2
an elastic portion bonded to a bottom portion of the cover portion... configured to press the original document placed at the original document platen
Data Source
AI summary
The present disclosure includes a cover portion configured to be switchable between a closed state, and an open state, and a pressing portion provided at the cover portion, and configured to press an original document placed at the original document platen when the cover portion is in the closed state, the pressing portion includes an elastic portion bonded to a bottom portion of the cover portion, a sheet material attached to the elastic portion, and coming into contact with the original document placed at the original document platen when the cover portion is in the closed state, a bonding portion for bonding the cover portion and the elastic portion, a bonding inhibiting portion interposed between the bonding portion and the cover portion, and inhibiting the bonding between the cover portion and the elastic portion, and the bonding inhibiting portion is provided at an end portion of the bonding portion.