Process Cartridge Driving Force Receiver Dynamics for Compact Installation
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Solution Overview
Problem
In existing process cartridges, the limited size restricts the retraction stroke of the driving force receiving member, making it difficult to engage with or disengage from the driving head in imaging devices, leading to unstable driving force transmission and installation challenges.
Innovation Solution
A process cartridge design featuring a rotatable driving head and an openable machine door cover, with a driving force receiving member that can rotate and change states to align coaxially with the driving head, facilitated by power output arms and claw parts, allowing smooth engagement and disengagement, and an auxiliary detachment member for easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the process cartridge size is limited, then the cartridge dimensions are reduced for compact installation, but the driving force receiving member cannot be completely disengaged from the driving head
Solution Approach 1:
The driving force receiving member is designed to dynamically change its orientation angle relative to the driving head. During installation, it rotates to an engagement angle for stable force transmission; during detachment, it rotates to a disengagement angle that clears the driving head, enabling complete removal despite limited cartridge size
Solution Approach 2:
The solution introduces angular orientation as an additional degree of freedom. Instead of only linear movement, the driving force receiving member utilizes rotational movement in the angular dimension to achieve both compact engagement and complete disengagement within the limited cartridge volume
2Volume of moving object
If the driving force receiving member is constrained in a limited angle range, then the installation space is reduced, but the member cannot swing to achieve disengagement at some angles
Solution Approach 1:
The driving force receiving member employs a dynamic two-state angular positioning system. It can rotate to a first angle for engagement during installation and to a second angle for disengagement during removal. This dynamic angular adjustment enables the member to adapt to different operational states while maintaining compact installation space
3Ease of operation
If the driving force receiving member swings during driving force transmission, then disengagement may be achieved, but the driving force transmission becomes unstable
Solution Approach 1:
The system implements controlled dynamics with distinct states: during driving force transmission, the member maintains a fixed engagement angle for stable force transfer; during detachment, it rotates to a disengagement angle. This controlled angular positioning ensures stability during operation while enabling disengagement when needed
Solution Approach 2:
The driving force receiving member undergoes periodic angular transitions between engagement and disengagement states. During normal operation, it remains in the stable engagement state; during detachment, it transitions to the disengagement state. This periodic state change ensures stable force transmission during imaging cycles while enabling complete disengagement during maintenance
Data Source
AI summary
Disclosed herein is a process cartridge comprising: a housing; a rotatable component; a driving force receiver configured to transmit a driving force to the rotatable component; an elastic member; wherein when the process cartridge is installed in an imaging device comprising a driving head, the driving force receiver has a first state and a second state relative to the driving head, the first state being a state in which the driving force receiver contacts the driving head and is in a pre-engaged position and the second state being a state in which the driving force receiver is engaged by the driving head; wherein when the driving force receiver is in the first state relative to the driving head, the elastic member is configured to urge the driving force receiver to transition from the first state to the second state as a result of rotation of the driving head.