Biasing Member Groove Design for Cartridge Stability
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Solution Overview
Problem
Conventional cartridge systems for image forming apparatuses face challenges in reliably holding a biasing member on a coupling member due to vibrations and disturbances, leading to potential detachment and instability in the transmission of driving force.
Innovation Solution
A cartridge design featuring a coupling member with a groove that has an opening width wider than the wire diameter of the biasing member, allowing for increased movement and stability, ensuring the biasing member remains securely positioned and reduces the likelihood of detachment during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the groove opening width is made equal to the wire diameter of the biasing member, then the biasing member is tightly constrained, but it becomes prone to detachment under vibrations and disturbances
Solution Approach 1:
The invention changes the dimensional parameter of the groove opening width from being equal to the wire diameter to being wider than the wire diameter. This parameter change allows the biasing member to move freely within the groove while maintaining contact, preventing detachment under vibrations while still providing positional guidance and constraint.
2Reliability
If the groove opening width is made wider than the wire diameter of the biasing member, then the biasing member can move freely and resist detachment, but the positional constraint is reduced
Solution Approach 1:
The invention makes the groove opening width dynamically adaptable by being wider than the biasing member, allowing the biasing member to move freely within the groove to accommodate vibrations and disturbances. This dynamic capability ensures the biasing member remains engaged while maintaining sufficient positional guidance through the groove's geometric constraint.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances the reliability of holding the biasing member on the coupling member, maintaining stability and ensuring consistent transmission of driving force, even under disturbances like vibrations, thereby improving the overall performance and lifespan of the cartridge system.
Implementation Method 1
a wire-shaped biasing member for biasing the coupling member
Data Source
AI summary
A cartridge that can be mounted in and detached from main body of an apparatus of an image forming apparatus includes: a rotating member that rotates upon reception of driving force from main body of the apparatus; a coupling member that includes a force receiving portion for receiving the driving force from main body of the apparatus via a drive shaft, transmits the driving force to the rotating member by rotating, and is capable of moving relative to the rotating member; and a wire-shaped biasing member for biasing the coupling member, wherein the coupling member includes a groove that is contacted by the biasing member, and an opening width of the groove is wider than a wire diameter of the biasing member.