Integrated Solenoid Lever Assembly for Pickup Roller Control
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Solution Overview
Problem
Conventional image forming apparatuses face difficulties in installing and maintaining the pickup roller control unit due to separate installation of the solenoid and lever, leading to potential misalignment and reduced operational efficiency.
Innovation Solution
A solenoid assembly with a lever and supporting plate, where the solenoid is fixed to one side of the lever, allowing for easy assembly and smooth operation, with a plunger and coil configuration that extends the pulling force distance through a projection port, and an elastic member for controlled movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the solenoid and lever are separately installed on the main body frame, then the installation flexibility is improved, but the alignment precision and operational reliability deteriorate
Solution Approach 1:
The patent combines the solenoid and lever into a single integrated assembly where the lever is rotatably supported on the solenoid frame. This merging eliminates the need for separate installation on the main body frame, ensuring precise alignment between the solenoid plunger and lever connection point while maintaining installation flexibility through the unified structure.
Solution Approach 2:
The patent introduces a frame as an intermediary structure that houses both the solenoid and lever. The frame serves as a mediator that pre-establishes the correct geometric relationship between these components, eliminating alignment issues that would occur with separate installation on the main body frame.
2Device complexity
If the solenoid and lever are separately installed on the main body frame, then the structural complexity is reduced, but the assembly difficulty and maintenance difficulty increase
Solution Approach 1:
By merging the solenoid and lever into a single assembly unit with the lever rotatably mounted on the solenoid frame, the patent reduces the number of separate components that need to be individually installed and aligned on the main body frame, thereby simplifying both assembly and maintenance operations.
3Adaptability or versatility
If the relative position between the lever and solenoid deviates from designed positions, then the structural adaptability is improved, but the pulling force and operational smoothness deteriorate
Solution Approach 1:
The integrated design ensures that the lever and solenoid maintain their designed relative positions through the unified frame structure, preventing deviation that would reduce pulling force. The lever is rotatably supported directly on the solenoid frame, ensuring optimal force transmission.
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 solenoid assembly ensures smooth operation of the lever and pickup roller, unaffected by the exact dimensions of the main body frame, enhancing assembly convenience and reducing weight by adjusting the pulling force distance, thus improving the overall efficiency of the image forming apparatus.
Implementation Method 1
a coil disposed to wrap around the plunger and to pull the plunger when electric power is applied to the coil
Implementation Method 2
an elastic member for controlled movement
Data Source
AI summary
A lever assembly controls a pickup roller, and includes a lever, a solenoid to actuate the lever, and a supporting plate on which the lever is rotatably disposed and to which the solenoid is connected at one side of the lever.