Bill Processing Device Inclined Route Shutter
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Solution Overview
Problem
In bill processing apparatuses, the linear traveling route from the insertion slot to the discharge slot makes it possible to recognize and potentially cancel the engagement between the bill and the tongue piece, allowing for fraudulent drawing out of bills due to foreign matter insertion.
Innovation Solution
A paper sheet processing apparatus with a first traveling route connected to the insertion slot and a second traveling route inclined at a predetermined angle, featuring a shutter member installed in the second route to prevent bills from being conveyed back to the insertion slot, ensuring secure bill processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a linear traveling route is used from insertion slot to discharge slot, then the structure is simple and easy to manufacture, but the tongue piece becomes visually recognizable and vulnerable to foreign matter insertion that can cancel engagement
Solution Approach 1:
The patent introduces a second traveling route that extends at a predetermined angle (e.g., 45 degrees) relative to the first linear traveling route. This dimensional change in the path configuration obscures the tongue piece from direct visual recognition through the insertion slot and prevents foreign matter inserted linearly from reaching and disengaging the tongue piece, thereby resolving the contradiction between structural simplicity and anti-fraud security
2Reliability
If a tongue piece is provided to prevent bill drawing out, then bill extraction is prevented, but the linear route allows foreign matter to reach and cancel the engagement
Solution Approach 1:
By extending the second traveling route at an angle relative to the first route, the patent creates a geometric barrier that prevents foreign matter inserted through the insertion slot from reaching the tongue piece. The angled path ensures that even if foreign matter is inserted, it cannot travel along the same trajectory to disengage the tongue piece, thus maintaining bill extraction prevention while eliminating foreign matter interference
Solution Approach 2:
The traveling route is divided into two distinct segments: the first linear traveling route and the second traveling route extending at an angle. This segmentation separates the path into stages, with the tongue piece positioned in the second route, creating a protective configuration where foreign matter in the first route cannot directly interact with the engagement mechanism in the second route
Data Source
AI summary
A paper sheet processing apparatus capable of preventing an action of drawing out a paper sheet such as a bill is provided. A bill processing apparatus of the present invention has an insertion slot into which a bill is inserted and a traveling route through which the bill inserted into the insertion slot is conveyed. The traveling route has a first traveling route (3A) connected to the insertion slot and a second traveling route (3B) extending downstream from the first traveling route (3A) and being inclined relative to the first traveling route (3A). The second traveling route (3B) is provided with a shutter member (200) for preventing conveyance of the bill toward the insertion slot.