Document Conveyance Path Layout for Inversion-Free Double-Sided Reading
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Solution Overview
Problem
Existing document conveying devices face complexity in mechanism and control for double-sided reading, leading to increased waiting times and reduced productivity, and require intricate path arrangements that can hinder smooth document conveyance.
Innovation Solution
A conveyance path comprising a carry-in path, reading path, loop path, escape path, and discharge path is implemented, allowing for single-sided and double-sided reading without document inversion, simplifying control and reducing waiting times by maintaining a consistent conveyance direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an inversion conveyance path is provided to invert the document for double-sided reading, then the document can be read on both sides, but the mechanism and control become complicated
Solution Approach 1:
The patent applies the inversion principle by providing a conveyance path that allows the document to be conveyed in reverse direction after the first reading. The path includes a first conveyance direction from the feed port to the reading position, and a second conveyance direction that returns the document to the reading position for back-side reading. This directional inversion enables double-sided reading without requiring complex inversion mechanisms.
Solution Approach 2:
The conveyance path is segmented into distinct sections: a first conveyance path for initial reading, a second conveyance path for returning the document, and a discharge path. This segmentation allows each path to be optimized for its specific function, simplifying the overall control mechanism while maintaining double-sided reading capability.
2Adaptability or versatility
If an inversion conveyance path is provided for double-sided reading, then both sides can be read, but the waiting time increases and productivity decreases
Solution Approach 1:
The patent implements continuous conveyance by ensuring the document moves continuously through the reading position for both front-side and back-side readings without interruption. The second conveyance path is designed to return the document to the reading position efficiently, minimizing idle waiting time while maintaining continuous productive action throughout the double-sided reading process.
3Area of stationary object
If the inversion document conveyance path is arranged in a narrow space, then the device is compact, but the document may not be conveyed smoothly
Solution Approach 1:
The patent resolves the space constraint by utilizing three-dimensional path routing. The first and second conveyance paths are arranged in different spatial dimensions, allowing the document to be conveyed smoothly through the narrow space without interference. The discharge path is separately positioned to avoid conflicts, ensuring reliable conveyance while maintaining compact device footprint.
Data Source
AI summary
A document conveying device includes a conveyance path. The conveyance path includes a carry-in path, a reading path, an escape path, a loop path, and a discharge path. The carry-in path is formed between a document feed port and a first passing point in front of the reading position. The reading path is formed between the first passing point and a second passage point beyond the reading position, and passes through the reading position. The escape path is formed between the first passing point and the second passing point, and does not through the reading position. The loop path starts from the second passing point and returns to the second passing point. The discharge path is formed between the first passing point and a document discharge port.