Sheet Conveying Device Cover Interlock Mechanism
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Solution Overview
Problem
Conventional sheet conveying devices face challenges in durability and ease of jam removal, particularly when external foreign materials interfere with the connecting portion exposed during the open position, and the drive force transmission is interrupted, leading to potential obstacles during sheet removal.
Innovation Solution
A sheet conveying device with an interlocking assembly that moves in conjunction with the cover's position, covering the connecting portion when open to prevent external interference and allowing independent rotation of the discharge rollers, ensuring easy jam removal and improved durability by interrupting drive force transmission when the cover is open.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the connecting portion is exposed to the outside when the cover is open, then the drive force transmission is interrupted allowing easy jam removal, but external foreign materials may interfere with the connecting portion reducing durability
Solution Approach 1:
A cover portion is introduced as an intermediary protective element that covers the connecting portion when the cover is open, preventing foreign material interference while allowing the drive force transmission to be interrupted for easy jam removal
Solution Approach 2:
The cover portion dynamically changes position based on cover state - covering the connecting portion when open and uncovering when closed, adapting the protection level to the operational requirements
Data Source
AI summary
A sheet conveying device includes: a main body; a cover; a first roller; and a second roller. The main body defines a conveying passage along which a sheet is conveyed. The cover is supported to the main body and movable between a closed position in which the cover covers the main body from above and an open position in which the cover is moved upward from the main body so as to be spaced away from the main body. The first roller is rotatably supported to the cover and configured to discharge the sheet from the conveying passage to an outside of the main body. The second roller is rotatably supported to the main body and disposed in confrontation with the first roller while interposing the conveying passage between the first roller and the second roller when the cover is at the closed position.