Coin Feeding Machine Removal Section for Diameter Filtering

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Solution Overview

Problem

Coin feeding machines that use inclined rotary disks often feed out coins with diameters outside the handling target range, leading to transport abnormalities and machine errors.

Innovation Solution

A coin feeding machine with a rotary disk, a cover, a feeding unit, and a removal section that separates and removes coins with diameters outside the handling target range, using small-diameter and large-diameter removal units and a removal member to prevent their feeding into the transport path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an inclined rotary disk is used to feed out coins, then coins with various diameters can be fed out, but coins whose outer diameters are out of the handling target range are sometimes fed out to the transport path

Engineering Contradiction:

Improveability to feed out coins with various diametersVSAvoidaccuracy of coin diameter filtering

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The feeding mechanism is segmented into multiple functional zones: a feeding unit that supports coins on the rotary disk, a feeding guide that selects coins based on diameter, and a removal section that eliminates out-of-range coins. This segmentation allows each component to specialize in a specific aspect of coin handling, improving overall filtering accuracy while maintaining versatility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A feeding guide acts as an intermediary component between the rotary disk and the transport path. This feeding guide includes a guide surface that contacts coins and a removal unit that selectively removes out-of-range coins, serving as a mediator that filters coins before they reach the transport path without disrupting the overall feeding mechanism.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If coins with outer diameters out of the handling target range are fed out to the transport path, then the coin feeding machine can handle diverse coin sizes, but transport abnormalities or errors are generated

Engineering Contradiction:

Improverange of coin diameters that can be handledVSAvoidtransport abnormalities and machine errors

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The removal section performs preliminary anti-action by actively removing out-of-range coins before they can cause transport abnormalities. The removal unit is positioned to intercept and eliminate coins with diameters outside the handling target range, preventing them from entering the transport path and causing errors.

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

The presence of out-of-range coins in the storing unit, which would normally be harmful, is converted into a benefit by using the removal unit to selectively eliminate these problematic coins. The removal section transforms the potential harm of having diverse coin sizes into a controlled filtering process that ensures only appropriate coins reach the transport path.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If a removal section is added to remove coins with diameters out of the handling target range, then feeding out of out-of-range coins is prevented, but the device complexity increases

Engineering Contradiction:

Improvefiltering accuracy of coin diametersVSAvoidstructure of the coin feeding machine

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The removal unit is merged with the existing feeding guide structure, combining the filtering function with the coin support mechanism. This integration allows the removal section to function as part of the overall feeding assembly, reducing the need for separate, standalone components and thereby limiting the increase in device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The feeding guide is designed with multi-functionality, serving both as a support structure for coins on the rotary disk and as a filtering mechanism that removes out-of-range coins. This universal design allows a single component to perform multiple functions, reducing the overall number of components needed and minimizing the increase in device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8720665B2Coin feeding machine and coin handling machine

Publication Date: 2014.05.13 GLORY LTD

AI summary

In a coin feeding machine 26 which uses a rotary disk 41 rotated at an inclined posture, a removal projection 59 for removing a smaller diameter coin is provided between a feeding projection 52 and a coin support portion 53 which are provided on a surface 41a of the rotary disk 41. The removal projection 59 is disposed to be positioned on the slightly outer side of the outer edge of a coin C when the coin C whose diameter is a lower limit value of a handling target range is brought into contact with the feeding projection 52 and the coin support portion 53. The side surface of the removal projection 59 is inclined relative to the surface of the rotary disk 41. When the coin is brought onto the inclined surface of this removal projection 59, the coin drops away from the surface 41a of the rotary disk 41. A coin C1 which is smaller than the lower limit value of the handling target range is brought onto the removal projection 59, so as to be dropped from the surface 41a of the rotary disk 41 and removed.