Unit Attaching Structure With Intermediary Connecting Portion
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Solution Overview
Problem
In existing unit attaching/detaching structures, the movement portion of a unit can cause damage to the detection unit when attaching or detaching, as it directly displaces the displacement portion of the apparatus main body, leading to potential damage during alignment.
Innovation Solution
A unit attaching/detaching structure is designed with a connecting portion that is separated from the detection unit and connected to the displacement portion, allowing the movement portion to displace the displacement portion without direct contact, and a returning unit that returns the displacement portion when the unit is detached, preventing damage to the detection unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the movement portion directly contacts and displaces the displacement portion, then the attachment detection function is achieved, but the detection unit may be damaged when the unit position deviates during attachment
Solution Approach 1:
The patent introduces a connecting portion as an intermediary element between the movement portion and the displacement portion. The connecting portion is positioned separately from the detection unit in the intersecting direction, allowing the movement portion to displace the displacement portion through the connecting portion without directly contacting the detection unit, thereby preventing damage while maintaining detection functionality
Solution Approach 2:
The patent separates the connecting portion from the detection unit in the intersecting direction (a different dimension/orientation), allowing the attachment movement to occur in one direction while the detection unit remains protected in another direction, thus resolving the conflict between detection functionality and damage prevention
2Ease of operation
If the unit is provided with a movement portion that directly contacts the displacement portion, then the attachment detection is enabled, but the structure becomes more complex and fragile
Solution Approach 1:
The patent combines the movement portion and the connecting portion into an integrated structure, reducing the number of separate components. The connecting portion is configured to be part of the unit structure, eliminating the need for additional separate mechanisms and simplifying the overall device complexity while maintaining the protective function
Data Source
AI summary
A unit attaching detaching structure includes: a unit that is attachable to and detachable from an apparatus main body; a displacement portion that is provided on the apparatus main body and is displaceable to one side and another side; a detection unit that detects attachment of the unit when the displacement portion is displaced from the another side to the one side; a connecting portion that is separated from the detection unit in a direction intersecting with a direction of attaching/detaching of the unit, and is connected to the displacement portion so as to displace the displacement portion; a movement portion that is provided on the unit and displaces the displacement portion by moving the connecting portion when the unit is attached to the apparatus main body; and a returning unit that returns the displacement portion when the unit is detached from the apparatus main body.