Liquid Ejection Device Handle Rotation Mechanism
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Solution Overview
Problem
In liquid ejection devices, such as ink jet printers, the handle of a replaceable liquid container may press the flexible bag-shaped ink container, causing ink supply pressure changes and potential backlash issues during mounting, leading to difficulties in removing the container due to the handle being caught.
Innovation Solution
A liquid ejection device design featuring a handle that rotates around an axis in the width direction, with a second fitting portion on the handle that fits into a first fitting portion on the device, ensuring the handle remains at a predetermined position, preventing pressure on the ink container and avoiding backlash, thus facilitating easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle is provided for users to carry the liquid container, then the ease of operation is improved, but the handle may press the flexible bag-shaped member due to its weight, causing ink supply pressure changes
Solution Approach 1:
The handle is designed to rotate around an axis extending in the width direction, transitioning from a static carrying position to a dynamic mounted position where it engages with the first fitting portion. This dynamic positioning ensures the handle does not press the flexible bag-shaped member during operation, maintaining ink supply pressure stability while preserving ease of carrying.
Solution Approach 2:
The second fitting portion on the handle acts as an intermediary engagement mechanism that connects the handle to the first fitting portion on the device main body. This intermediary structure ensures proper positioning and prevents the handle from pressing the flexible bag-shaped member, resolving the conflict between ease of operation and reliability.
2Ease of operation
If the handle is in a free state during mounting, then the ease of operation is improved, but backlash or impact may cause the handle to be at an unexpected position, making removal difficult
Solution Approach 1:
The handle automatically engages with the first fitting portion during the mounting process through its rotation around the width direction axis. This self-service mechanism ensures the handle positions itself correctly without requiring additional control mechanisms, maintaining ease of operation while preventing unexpected positions that would complicate removal.
Data Source
AI summary
In a state where a liquid container is mounted in a liquid ejection device, the position of a handle is maintained at a predetermined position. A device main body that ejections a liquid and a liquid container that contains liquid are provided, the liquid container is attachable to and detachable from the device main body in a direction orthogonal to a width direction, the device main body has a first fitting portion, the liquid container has a handle that rotates around an axis that extends in the width direction, and the handle has a second fitting portion that fits to the first fitting portion.