Automatic Document Feeder with Movable Guider for Thick Documents
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing automatic document feeders struggle to feed thick documents such as cards or bound books continuously and automatically due to bending issues, requiring manual scanning.
Innovation Solution
An automatic document feeder design incorporating a horizontal and curve feeding path with a movable document guider, actuator, feeding roller, and transmission structure, allowing for continuous feeding of documents and automatic handling of thick documents by adjusting torque direction to guide and eject documents through a gentle bending corner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a C-shape ADF is used to feed documents continuously, then the length of the scanner is reduced, but thick documents cannot be fed through the document feeding path
Solution Approach 1:
The patent introduces a movable document guider that can dynamically change position between a first position (for thick documents) and a second position (for regular documents). This dynamic adjustment allows the same device to adapt to different document types, resolving the contradiction between compact scanner length and the ability to handle thick documents.
2Adaptability or versatility
If a movable document guider is added to handle thick documents, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The movable document guider is designed with a simple two-position mechanism that can be controlled by a motor or actuator. This dynamic structure adds minimal complexity while significantly improving adaptability to handle both thick and regular documents through the same feeding path.
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
Enables continuous and automatic feeding of both regular and thick documents, improving scanning efficiency by eliminating the need for manual handling of thick documents.
Implementation Method 1
The motor outputs a forward torque or a converse torque according to a control
Implementation Method 2
The feeding roller is arranged in the horizontal feeding path for feeding the documents through the scanning unit
Implementation Method 3
The actuator is rotatably positioned near the gentle bending corner for pushing against the movable document guider
Data Source
AI summary
An automatic document feeder includes a horizontal feeding path, a curve feeding path, a scanning unit arranged in the horizontal feeding path, a motor, a movable document guider, an actuator, a feeding roller arranged in the horizontal feeding path, and a transmission structure. One end of the curve feeding path is connected with a common document inlet, the other end of the curve feeding path is connected with a middle of the horizontal feeding path. A gentle bending corner is formed at a junction area between the curve feeding path and the horizontal feeding path. The motor outputs a forward torque or a converse torque. The movable document guider is rotatably positioned near the gentle bending corner. The actuator is rotatably positioned near the gentle bending corner. The transmission structure is connected among the motor, the feeding roller and the actuator.