Pick-Up Roller Moving Device for Jam Prevention
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Solution Overview
Problem
Existing financial devices with multiple medium storage spaces face challenges such as reduced storage capacity, increased complexity, and jamming issues due to the need for multiple pick-up rollers and back feeding mechanisms, which can interfere with the withdrawal process.
Innovation Solution
A medium pick-up apparatus with a single pick-up roller that moves away from remaining media in the storage space after a predetermined number is withdrawn, using a pick-up roller moving device and a position fixing unit to prevent jamming by spacing the roller from media post-withdrawal, allowing for efficient and accurate medium handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sensor senses that a predetermined number of media are picked up and the pick-up roller operation is stopped, then the medium storage space can be maintained, but the pick-up roller may rotate at a predetermined angle by inertia effect and pick up medium that does not have to be picked up, causing jamming between the feed roller and gate roller
Solution Approach 1:
The patent applies preliminary anti-action by providing a stopper that prevents the pick-up roller from rotating beyond a predetermined angle. The stopper is positioned to contact the pick-up roller when it rotates by inertia after the driving force is removed, thereby preventing the roller from picking up additional medium that would cause jamming between the feed roller and gate roller.
2Object-affected harmful factors
If back feeding is performed to move the jammed medium again into the medium storage space, then the jamming issue may be resolved, but the back feeding may not be normally performed or may interfere with a medium to be picked up in the following process, causing pick-up obstacle
Solution Approach 1:
The patent extracts the problematic back feeding mechanism entirely and replaces it with a stopper-based solution. Instead of using back feeding to move jammed medium back into the storage space, the stopper prevents the pick-up roller from picking up medium that would cause jamming in the first place, thereby eliminating the need for back feeding and its associated reliability issues.
3Ease of operation
If multiple pick-up rollers are provided for multiple medium storage spaces, then each storage space can have dedicated pickup capability, but the medium storage space within each box is reduced in size and the device structure becomes complicated
Solution Approach 1:
The patent applies universality by making the pick-up roller multi-functional. The same pick-up roller is used to pick up medium from multiple different storage spaces by changing its position. The roller can be moved to different locations within the medium storage box, allowing a single roller to serve multiple storage spaces, thereby reducing device complexity while maintaining dedicated pickup capability for each space.
Solution Approach 2:
The patent applies dynamics by making the pick-up roller movable rather than fixed. The roller can be repositioned to different storage spaces as needed, transforming it from a static component dedicated to one location into a dynamic component that can adapt to multiple locations. This dynamic positioning capability allows one roller to replace multiple fixed rollers.
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
This solution enhances storage capacity, simplifies the device structure, and prevents media jamming by ensuring the pick-up roller is spaced from remaining media, even when rotating due to inertia, thereby improving the withdrawal process efficiency and reducing operational complexity.
Implementation Method 1
even though the operation of the pick-up roller is stopped, the pick-up roller may rotate at a predetermined angle by an inertia effect
Data Source
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AI summary
Provided is a pick-up apparatus. The medium pick-up apparatus comprise a support plate (211, 212) to support a medium, a pick-up roller unit comprising a pick-up roller (222) for picking up the medium, a detection unit (401, 402) to detect the number of medium that is picked up by the pick-up roller, and a pick-up roller moving device (300) to move the pick-up roller unit to space the pick-up roller unit from the medium supported by the support plate when the pick-up of predetermined number of medium is detected by the detection unit.