Variable-Angle Placement Tray Engagement for Medium Conveying
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Solution Overview
Problem
Existing medium conveying apparatuses face challenges in efficiently and securely attaching and detaching a placement tray while preventing accidental detachment or damage, particularly when handling forces applied during normal use or transport.
Innovation Solution
A medium conveying apparatus with a placement tray that forms a first angle with a guide surface when attached and a second angle when detached, utilizing an engaging portion and an engaged portion to allow or restrict entry/removal, ensuring stable attachment and preventing accidental detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the placement tray is made detachable from the housing, then the medium conveying apparatus can be stored compactly on a shelf, but the placement tray may accidentally detach during normal use or transport
Solution Approach 1:
The engagement mechanism transitions from a static fixed-angle connection to a dynamic variable-angle connection. The placement tray can be attached at a first angle for stable operation and detached at a second angle for compact storage, allowing the system to adapt between two stable states while preventing accidental detachment during normal use.
Solution Approach 2:
The angle parameter of the placement tray relative to the housing guide surface changes between a first angle during attachment and a second angle during detachment. This parameter change enables the engagement portion to interact differently with the engaged portion, allowing controlled attachment while preventing accidental detachment.
2Adaptability or versatility
If the placement tray is made detachable from the housing, then the medium conveying apparatus can be stored compactly, but force may be required to attach or detach the placement tray
Solution Approach 1:
The engagement mechanism utilizes dynamic angular movement to reduce attachment force requirements. By allowing the placement tray to be attached at a first angle and detached at a second angle, the system creates a mechanical advantage that reduces the force needed for attachment and detachment operations.
Solution Approach 2:
Changing the angular parameter between attachment and detachment states creates a mechanical advantage. The engaged portion is designed to engage with the engagement portion at specific angles, allowing the placement tray to be attached with minimal force while maintaining secure connection during use.
3Stability of the object's composition
If the placement tray forms a fixed angle with the guide surface, then the attachment is stable during operation, but the placement tray cannot be easily detached
Solution Approach 1:
The system transitions from a fixed-angle attachment to a variable-angle mechanism. The placement tray can be detached by changing the angle to a second angle, which allows the engagement portion to disengage from the engaged portion, providing both stability during operation and ease of detachment when needed.
Solution Approach 2:
The angular parameter is changed from a fixed first angle to a variable angle that can be adjusted to a second angle for detachment. This parameter change enables the placement tray to maintain stable attachment during normal use while allowing easy detachment when required, resolving the contradiction between stability and ease of operation.
Data Source
AI summary
A medium conveying apparatus includes: a housing having an engaged portion and a guide surface; a placement tray having an engaging portion and a placement surface; and a side guide mounted on the placement surface and protruding downstream beyond the placement tray to restrict a medium in a width direction. The engaged portion restricts entry or removal of the engaging portion when the placement surface forms a first angle with the guide surface, and allows entry or removal of the engaging portion when the placement surface forms a second angle different from the first angle with the guide surface in attachment of the placement tray to the housing or detachment of the placement tray from the housing. A downstream end of the side guide in the conveying direction does not intersect with the guide surface as viewed from the width direction when the placement surface forms the second angle.