Rotatable Running Rail for Coin Thickness Measurement
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Solution Overview
Problem
Existing mechanical coin-acceptor units require time-consuming and costly adjusting and straightening operations to ensure accurate thickness measurement due to fabrication tolerances and external influences, leading to potential distortion and faulty measurements.
Innovation Solution
The running rail is mounted rotatably on the basic body via a point of rotation, allowing it to abut reliably on both sides of the recess, compensating for distortion and ensuring a defined gap for reliable thickness testing, with punctiform support points and incisions preventing tilting and uncontrolled edge incorporation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the running rail is rigidly connected to the basic body, then the structure is simple and stable, but distortion from production or transport causes faulty thickness measurements
Solution Approach 1:
The running rail is mounted rotatably on the basic body via a point of rotation instead of being rigidly fixed. This dynamic mounting allows the running rail to rotate and adapt to distortion between the flap and basic body, ensuring that the gap for thickness measurement remains accurate even when production tolerances or external influences cause misalignment.
2Manufacturing precision
If manual adjusting and straightening operations are performed, then thickness measurement accuracy is improved, but production time and costs increase
Solution Approach 1:
The rotatable mounting of the running rail enables the system to self-adjust to distortion automatically during operation. The running rail can rotate about its point of rotation to compensate for unevennesses or distortion in the flap and basic body, eliminating the need for time-consuming manual adjusting and straightening operations during assembly.
3Reliability
If the running rail is mounted rotatably via a point of rotation, then distortion compensation is achieved and thickness measurement reliability is improved, but the mounting complexity increases
Solution Approach 1:
The state of the running rail connection is changed from fixed to rotatable, allowing it to adapt its orientation parameter in response to distortion. This parameter change enables the running rail to maintain accurate alignment with the flap despite variations in the relative positions of the flap and basic body.
Data Source
AI summary
There is proposed a mechanical coin-acceptor unit with a coin running channel which has a running rail for rolling a coin, in or on which testing arrangements for testing the properties of the rolling coin are provided, having a coin-acceptor shaft and a return shaft disposed below the running rail, where the running rail is mounted on a basic body and has a recess in the running direction of the coin for testing the thickness of the coin which falls possibly through the recess into the return shaft, and the running rail is mounted rotatably on the basic body via a point of rotation.