Inkjet Printer Ink Cartridge Attachment Force Distribution
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Solution Overview
Problem
Inkjet printers and similar recording devices face attachment state deterioration when an external liquid storing device is used as a handgrip, causing stress concentration on the attachment section, leading to potential damage.
Innovation Solution
Incorporating a reception section on the device main body that can accept upward external force, with a downward surface that expands perpendicular to the vertical direction and an inclined upward surface, allowing the liquid storing device to slide and distribute the force, thereby preventing stress concentration on the attachment section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the liquid storing device is attached to the outer side surface of the device main body through an attachment section for convenient carrying, then the ease of operation is improved, but the attachment state deteriorates when the device is lifted up using the liquid storing device as a handgrip
Solution Approach 1:
The force reception function is segmented from the attachment section. The reception section is provided as a separate structural element on the device main body that is distinct from the attachment section, allowing it to independently handle the lifting force without compromising the attachment integrity.
Solution Approach 2:
The reception section acts as an intermediary structure between the liquid storing device and the device main body. It receives the upward external force from the liquid storing device and transfers it to the device main body in a distributed manner, preventing stress concentration at the attachment section.
2Device complexity
If the attachment section is used to both attach the liquid storing device and provide a handgrip, then the device complexity is reduced, but the stress concentration causes the attachment section components to bend
Solution Approach 1:
The structural functions are segmented into two distinct components: the attachment section for securing the liquid storing device, and the reception section for accepting lifting forces. This segmentation allows each component to be optimized for its specific function without compromising the other.
Solution Approach 2:
The reception section utilizes the vertical dimension by providing a downward surface that extends in the vertical direction. This dimensional approach allows the force to be distributed across a larger area rather than concentrated at a single attachment point.
3Stress or pressure
If the downward surface expands in the direction perpendicular to the vertical direction, then the force distribution is improved, but the device complexity increases
Solution Approach 1:
The reception section is merged with the attachment section structure, where the downward surface is formed as part of the attachment section's structural configuration. This merging allows the force distribution function to be integrated into the existing structure without adding separate complex components.
Data Source
AI summary
A recording device includes a main body case that is arranged inside a recording head which ejects ink to paper, and an ink storing device that stores the ink to be supplied to the recording head and is attached to the outer side surface of the main body case through a screw member. When upward external force is added from the ink storing device, the main body case includes a reception section which can accept the external force.