Coin Dispenser Dialing Rod Mechanism for Single-coin Ejection
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Solution Overview
Problem
Existing coin dispensing units in automated vending machines often push multiple coins out simultaneously due to friction, leading to exchanging errors and loss of property, particularly when handling coins of different values and sizes.
Innovation Solution
A coin dispenser design featuring a dialing device with a dialing rod that pushes one side of a metal coin, causing the other side to engage with coin-stopping columns, ensuring only one coin is dispensed at a time, utilizing a spring plate with strategically positioned coin-stopping columns and a stopper plate to prevent multiple coins from being pushed out, and accommodating coins of varying sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional coin dispensing unit pushes coins out, then coins can be dispensed, but multiple coins may be pushed out simultaneously due to friction between coins
Solution Approach 1:
The patent introduces a dialing rod as an intermediary element between the pushing mechanism and the coins. The dialing rod engages with the peripheral edge of a single coin and uses coin-stopping columns as mediators to prevent multiple coins from being pushed out simultaneously. The coin-stopping columns act as intermediary structures that limit the movement of coins during the dispensing process, ensuring only one coin is dispensed at a time.
Solution Approach 2:
The patent segments the coin dispensing process by introducing discrete coin-stopping columns that individually control the movement of each coin. Instead of pushing multiple coins as a single unit, the mechanism divides the coins into separate controlled units, with each coin-stopping column managing the ejection of a single coin through the coin outlet.
2Adaptability or versatility
If coins of different values and sizes are stored in the same coin collecting tube, then the coin dispensing unit can handle various denominations, but friction between different coins causes dispensing errors
Solution Approach 1:
The patent designs a universal coin dispensing mechanism that can handle coins of different values and sizes using the same structural components. The dialing rod and coin-stopping columns are designed to accommodate variations in coin dimensions through adjustable positioning, allowing a single dispensing unit to serve multiple coin denominations without requiring separate mechanisms for each type.
Solution Approach 2:
The patent employs dynamic adjustment capabilities in the dialing device, where the dialing rod can be positioned at different heights and angles to accommodate coins of varying sizes. The spring plate with coin-stopping columns provides flexible positioning that adapts to different coin thicknesses and diameters, enabling reliable single-coin dispensing across multiple denominations.
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 design enhances the reliability and stability of coin dispensing by ensuring accurate single-coin ejection, reducing manufacturing costs, and accommodating coins of different sizes without the need for multiple dispensers.
Implementation Method 1
a spring plate mounted in each through hole of the casing... two spring arms extended from one side of the positioning portion toward the inside of the associating through hole... a gap formed between the two spring arms for the insertion of the dialing rod
Data Source
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AI summary
A coin dispenser is disclosed to use a dialing rod of a dialing device of a coin dispensing unit to push one side of the peripheral edge of one metal coin so that the other side of the peripheral edge of the metal coin will push two coin-stopping columns of one spring plate of the coin dispensing unit, causing the two coin-stopping columns to slide along the peripheral edge of the metal coin, and thus, when the metal coin crosses two coin-stopping columns, the metal coin is sent out of the coin outlet, achieving the effect of dispensing one metal coin at one time.