Biasing Part Perpendicular to Drive Force in Image Forming Unit
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Solution Overview
Problem
Conventional image forming devices face productivity issues due to the time-consuming process of uniformly contacting and pressing first and second rotating bodies during assembly, which affects the efficiency of the printer assembly process.
Innovation Solution
The implementation of a system with a first rotating body, a second rotating body, and a biasing part that uses a drive force transmitted through gears to facilitate uniform contact and pressing, where the biasing part applies a force perpendicular to the drive force, simplifying the assembly process by ensuring easy and uniform alignment of the rotating bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the first and second rotating bodies are assembled in the device main body after pressing force adjustment, then the pressing force can be accurately controlled, but the assembly time increases and productivity decreases
Solution Approach 1:
The biasing part is pre-installed on the first rotating body with its biasing direction perpendicular to the drive force direction. This preliminary configuration enables automatic uniform pressing when the second rotating body is assembled, eliminating the need for time-consuming pressing force adjustment during final assembly while ensuring accurate pressing force control.
Solution Approach 2:
The biasing force is applied in a direction perpendicular to the drive force direction, creating a dimensional separation between the driving mechanism and the pressing mechanism. This allows the drive force to transmit rotation while the perpendicular biasing force independently ensures uniform contact pressure, enabling simultaneous assembly with proper pressing force without additional adjustment time.
2Manufacturing precision
If side plates with controlled size are provided on both ends of the rotating bodies, then uniform contact can be achieved, but the device complexity increases
Solution Approach 1:
The uniform contact function is extracted from the side plates and transferred to the biasing part. The biasing part, positioned perpendicular to the drive force direction, independently ensures uniform pressing force without requiring complex side plate structures. This extraction simplifies the overall device structure while maintaining the uniform contact function.
Solution Approach 2:
The biasing part acts as an intermediary element between the drive mechanism and the rotating bodies. By applying force in a direction perpendicular to the drive force, it mediates the contact between rotating bodies, ensuring uniform pressing without requiring the side plates to directly provide the pressing function, thereby reducing structural complexity.
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
This solution improves the workability and efficiency of the assembly process by ensuring that the rotating bodies are easily and uniformly contacted and pressed, thereby enhancing the overall productivity of the printer assembly.
Implementation Method 1
a biasing part that biases the second unit toward the first unit, wherein a drive force is generated by transmitting rotation from the first gear to the second gear
Data Source
AI summary
An image forming unit includes a first rotating body having a first gear; a first unit that rotatably supports the first rotating body; a second rotating body having a second gear; a second unit that rotatably supports the second rotating body; and a biasing part that biases the second unit toward the first unit, wherein a drive force is generated by transmitting rotation from the first gear to the second gear in order to transmit the rotation from the first rotating body to the second rotating body, and the biasing part biases the second unit in a biasing direction substantially perpendicular to a driving direction of the drive force.