Coin Selector Pushing Portions for Clog Removal
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Solution Overview
Problem
Existing coin selectors face challenges in efficiently removing coins that are clogged due to moisture, oil, or charge, leading to coins sticking to the passage walls and not being properly discharged.
Innovation Solution
A coin selector design featuring a gate that branches the coin path into storage or dispensing ports, along with pushing portions that can dislodge stuck coins, ensuring they are discharged to the dispensing port, and a control unit that manages the coin selection and discharge process based on denomination identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a plate-shaped canceller advances in the slot body from the direction opposite to the rolling direction of the coin, then coins can be pushed out from the slot body, but coins that stick to the side wall due to moisture, oil, or charge cannot be effectively removed
Solution Approach 1:
Instead of pushing the coin from the opposite direction of rolling (conventional method), the invention applies pushing portions that push the coin from the rolling direction side. This inverted approach allows the coin to be pushed while maintaining contact with the side wall, preventing the coin from sticking and enabling reliable discharge even when moisture, oil, or charge is present.
Solution Approach 2:
The invention adds a new dimension to the coin removal mechanism by introducing pushing portions that extend from the side wall toward the coin's rolling path. This creates a multi-point contact system where the coin is pushed from multiple locations simultaneously, preventing it from adhering to the side wall and ensuring reliable removal.
2Productivity
If the lower side of the side wall is opened to create a reject passage, then clogged coins can be discharged, but coins may become stuck on the side wall and fail to move into the reject passage
Solution Approach 1:
The pushing portions are positioned to act on the coin before it reaches the reject passage opening. By pushing the coin in advance from the rolling direction side, the invention ensures the coin is properly positioned and moving reliably before it needs to transition into the reject passage, preventing it from getting stuck at the opening.
Solution Approach 2:
The pushing portions serve as an intermediary mechanism between the coin and the reject passage. Instead of relying on the coin to spontaneously move into the reject passage opening, the pushing portions mediate the transition by actively guiding and propelling the coin from the slot body through the opening and into the reject passage.
3Measurement precision
If detection coils are attached to the side walls in the slot body, then coin authentication can be performed, but the slot body becomes more prone to coin clogging
Solution Approach 1:
The slot body is segmented into functional zones: the authentication zone with detection coils and the discharge zone with pushing portions and reject passage. This segmentation allows the detection coils to be positioned only where needed for authentication, while the pushing portions handle the coin removal function, reducing overall complexity and improving coin flow.
Solution Approach 2:
The coin removal function is extracted from the slot body structure itself and implemented as separate pushing portions. This extraction allows the slot body to maintain its simple cylindrical form with detection coils, while the removable pushing portions provide the necessary coin discharge capability without adding permanent structural complexity.
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
Effectively removes clogged coins and ensures accurate denomination identification and discharge, preventing coin clogging and improving the operational efficiency of the coin selector.
Implementation Method 1
a pushing portion configured to push the coin in the middle of the path of the coin from the identification unit to the gate
Implementation Method 2
a gate disposed in the middle of a path along which a coin moves between the depositing port and the dispensing port, and the gate branching a course of the coin to the storage port or the dispensing port
Data Source
AI summary
A coin entering from a depositing port of a coin selector is identified by a denomination while passing through a coin passage. A coin of a predetermined denomination is stored, and a coin of a denomination other than the predetermined denomination is discharged to the outside. Provided is a coin selector including a removal mechanism that suitably removes a coin clogged in a coin passage. The coin selector includes a first pushing portion and a second pushing portion that push a coin in a moving direction of the coin and a direction intersecting with the moving direction in the coin passage from a depositing port for depositing the coin to a dispensing port for discharging the coin. When the coin is clogged, the coin is pushed by a pushing unit to eliminate the coin clogging, and the clogged coin is discharged to the dispensing port.