Document Feeding Mechanism Floating Tray Dynamics
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Solution Overview
Problem
Conventional document feeding mechanisms experience erroneous operation due to the restricting arm of the document blocking means moving beyond its intended block, allowing documents to intrude into the conveying path, leading to incorrect functioning.
Innovation Solution
A document feeding mechanism incorporating a floating input tray with an elastic means and an actuating mechanism, where the tray is pushed up to connect with the document blocking means to close the path and selectively pushed down to separate from it, using wheels with different radii to control the tray's movement, ensuring reliable document blocking and conveying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the blocking arm is pushed exceedingly, then the restricting arm moves beyond the block, but this causes documents to intrude into the conveying path leading to erroneous operation
Solution Approach 1:
The patent applies the dynamics principle by making the tray movable rather than fixed. The tray can dynamically adjust its position between a first position (blocking documents) and a second position (allowing document insertion). This dynamic adjustment prevents the reliability issue while maintaining operational flexibility, as the tray actively responds to document insertion needs without requiring excessive force that would cause the restricting arm to move beyond its block.
2Reliability
If the restricting arm is constrained by the block, then document blocking is reliable, but the blocking arm cannot be pushed exceedingly leading to reduced adaptability
Solution Approach 1:
The patent applies the intermediary principle by introducing the tray as a mediating element between the blocking arm and the documents. The tray serves as an intermediate structure that can be selectively positioned to either block or allow document insertion. This intermediary mechanism resolves the contradiction by providing adaptability through tray position changes while maintaining reliable document blocking when the tray is in the first position, without requiring the restricting arm to move beyond its designed block.
3Device complexity
If a fixed blocking mechanism is used, then结构简单 (structure is simple), but it cannot selectively open or close the conveying path
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed blocking mechanism into a dynamic one. The tray is designed to be movable between a first position (blocking the conveying path) and a second position (opening the conveying path for document insertion). This dynamic design maintains relative structural simplicity while gaining the adaptability to selectively open or close the path, resolving the contradiction between simplicity and versatility.
4Adaptability or versatility
If the tray is made floating and movable, then adaptability is improved, but the mechanism complexity increases
Solution Approach 1:
The patent applies the dynamics principle by making the tray movable between defined positions, which provides adaptability for selective document blocking and insertion. The tray can be positioned in a first state for blocking and a second state for allowing insertion, resolving the technical contradiction between maintaining reliable document blocking and enabling flexible document insertion.
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
The mechanism ensures high reliability in blocking documents from entering the conveying path by effectively controlling the tray's position through the actuating mechanism, preventing erroneous operation and ensuring accurate document handling.
Implementation Method 1
an elastic means and an actuating means. The tray is pushed up to connect to the document blocking means by the elastic means
Data Source
AI summary
A document feeding mechanism includes a driving shaft, a document blocking unit, a tray, an elastic unit and an actuating unit. The tray is pushed up to connect the document blocking unit by the elastic unit. The actuating unit is coupled to the driving shaft and abutted against the tray for pushing down the tray to separate from the document blocking unit. The actuating unit will be driven to allow the tray to be pushed to swing up by the elastic unit for blocking documents. The actuating unit will be driven to abut against the tray for pushing the tray to swing down for separating the tray from the document blocking unit for conveying the documents. Therefore, the document feeding mechanism has high reliability for blocking the documents.