Developing Cartridge Linear Transmission for Shaft-Safe Detection
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Solution Overview
Problem
The rotational shaft of the stirring member in developing cartridges is susceptible to deformation or fracture due to the transmission of drive forces, posing a risk to the structural integrity and detection accuracy.
Innovation Solution
A developing cartridge design that eliminates the need for transmitting forces through the rotational shaft of the stirring member by using a sliding groove mechanism and a transmission member to drive the detected member, which moves along the longitudinal direction of the cartridge body, ensuring the detected member is driven without relying on the rotary axis of the stirring member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rotational shaft of the stirring member is used to transmit drive force from the first end to the second end of the developing cartridge, then the detected member can be driven, but the rotational shaft is susceptible to deformation or fracture due to the combined force of stirring developer and driving the detected member
Solution Approach 1:
The drive force transmission function is segmented from the stirring function. A separate transmission member (linear motion component) is introduced to transmit the drive force from the first end to the second end, while the rotational shaft of the stirring member only performs the stirring function. This segmentation eliminates the combined load on the rotational shaft, preventing deformation or fracture.
Solution Approach 2:
A transmission member acts as an intermediary between the drive force receiving unit and the detected member. This intermediary component receives the drive force at the first end and transmits it linearly to the detected member at the second end, bypassing the rotational shaft of the stirring member and eliminating the risk of shaft failure.
2Ease of operation
If the detected member is driven through the rotational shaft of the stirring member, then the detection function is achieved, but the structural complexity increases due to the need for force transmission through rotating components
Solution Approach 1:
The traditional mechanical force transmission through rotating components is replaced with a linear motion-based transmission system. The transmission member moves linearly along the longitudinal direction of the cartridge body to drive the detected member, simplifying the mechanical structure and reducing the complexity of force transmission mechanisms.
3Ease of operation
If the transmission member is allowed to move freely in multiple directions, then the detected member can be driven effectively, but the movement control along the longitudinal direction becomes difficult
Solution Approach 1:
The transmission member is provided with localized movement constraints that allow free movement only along the longitudinal direction of the cartridge body, while restricting movement in other directions. This localized quality control enables effective driving of the detected member while maintaining simple movement control through directional guidance structures.
Data Source
AI summary
Disclosed is a developing cartridge configured to be removably mounted in a main assembly of an imaging apparatus. In some embodiments disclosed, the developing cartridge includes: a cartridge body; a drive force receiving unit including a coupling member, disposed at a first end of the developing cartridge, configured to receive a drive force from the imaging apparatus; a driving member, disposed at the first end of the developing cartridge, configured to receive the drive force and move; a transmission member, receiving a force from the driving member to cause at least a portion of the transmission member to move along a longitudinal direction of the cartridge body; and a detected member provided at a second end of the developing cartridge, configured to be driven by the transmission member.