Integrated Paper Feeding Roller Mechanism for ADF Cost Reduction
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Solution Overview
Problem
Conventional paper output structures for automatic document feeders are complex, leading to higher component costs and difficult assembly processes due to the numerous components required.
Innovation Solution
A simplified paper output mechanism with a reduced number of components, featuring a seat, a connecting shaft, a paper feeding roller integrated with the shaft, and an elastic element, where one end of the elastic element is positioned on the roller and the other end connected to the seat, eliminating the need for a copper sleeve and cover, and integrating the roller with the shaft into a single component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional paper output structure with multiple components (paper feeding roller, rotating shaft, copper sleeve, spring, cover, mounting bracket) is used, then the structure can provide necessary functional support, but the device complexity increases and assembly becomes difficult and tedious
Solution Approach 1:
The patent combines multiple separate components (paper feeding roller, rotating shaft, copper sleeve, spring, cover, mounting bracket) into an integrated assembly where the paper feeding roller is directly mounted on the rotating shaft without intermediate components. The elastic element directly connects the roller to the seat, eliminating the need for separate copper sleeve and cover structures, thereby reducing device complexity while maintaining functional support
Solution Approach 2:
The rotating shaft serves multiple functions simultaneously: it acts as the rotational axis for the paper feeding roller, provides structural support through the seat, and integrates the elastic element connection. This multi-functional design eliminates the need for separate dedicated components for each function, simplifying the overall structure and making assembly easier
2Reliability
If multiple components are used in the paper output structure, then functional requirements can be met, but the cost of individually manufactured components increases
Solution Approach 1:
By merging the paper feeding roller, rotating shaft, and elastic element into an integrated assembly, the patent reduces the total number of individually manufactured components. This integration eliminates the need for separate copper sleeve, cover, and mounting bracket components, thereby reducing manufacturing costs while maintaining the functional support required for reliable operation
3Ease of manufacture
If a simplified paper output mechanism with integrated components is used, then assembly cost and complexity are reduced, but the structural detail must be optimized to maintain functionality
Solution Approach 1:
The patent integrates the paper feeding roller with the rotating shaft as a single assembled unit, eliminating intermediate components like copper sleeve and cover. This merging reduces assembly cost and complexity while requiring precise manufacturing of the integrated interface between the roller and shaft to maintain functional reliability
Solution Approach 2:
The paper feeding roller is segmented into a shaft portion and a roller portion, where the shaft portion integrates with the rotating shaft and the roller portion provides the document conveying function. This segmentation allows for simplified manufacturing of each segment while maintaining overall functionality with reduced component count
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 reduces component and assembly costs, simplifies the assembly process, and enhances operational efficiency by minimizing the number of components, resulting in a more cost-effective and easier-to-assemble paper output mechanism.
Implementation Method 1
an elastic element, placed around the shaft portion, one end thereof being connected with the seat
Data Source
AI summary
A paper output mechanism for an automatic document feeder, including: a seat; a connecting shaft, passed through the seat; and a paper feeding roller, placed around the connecting shaft, and including: a shaft portion; a roller portion, placed around the shaft portion; and adapted to convey a document, and an elastic element, placed around the shaft portion, and one end thereof being connected to the seat.