Coin and method for producing a coin

Abstract

Coin, medal or casino token with a first side and a second side, comprising at least one first layer (1) made of a first material and at least one second layer (2) made of a second material, wherein the first layer (1) is between 10 [mu]m and 90 [mu]m, preferably 20 [mu]m thick. The invention further relates to a method for producing a coin wherein the coin is produced, more particularly punched, from a plated sheet-like composite material, and to a method for producing a coin wherein the coin is formed from a ring (5) and a core (4) arranged inside the ring, wherein the core and the ring are punched from a plated sheet-like composite material and subsequently the core (4) is inserted rotated into the ring (5) and is fixed therein.

Description

technical field [0001] The invention relates to a coin, a medal or a casino chip according to the preamble of claim 1 and a method for producing a coin, a medal or a casino chip according to claims 14 and / or 15 . For the sake of brevity, only "coins" will be referred to below. Background technique [0002] Coins, especially higher denominations (Nominal), are often at risk of being counterfeited. Therefore, efforts are being made to set highly anti-counterfeiting marks for coins. Firstly, this is carried out by selecting so-called coin material that is focused on coinmaking, such as CuNi25 or Nordic Gold, and is therefore not available or only difficult to obtain freely on the open market; and secondly , with visually unmistakable markings such as edge construction (Randausbildung) and edge symbols, stamped patterns and embossing or as a two-colour version. [0003] In addition to the above-mentioned properties, in coin detection devices, besides weight and dimensions, i...

AI Technical Summary

Problems solved by technology

However, electroplated products have the disadvantage that due to the deposition kinetics, the layer thickness increases in diameter from the center to the edge (skeletal properties), and that additionally the steel core may prevail in coin detection devices with regard to the electromagnetic properties, That is, the layer thickness is considered too small

Although a sensor is known from DE 10 2004 001 464 A1 which is supposed to be able to detect different materials on the front and rear by means of a reflective sensor, this method has not been implemented because all existing coin detection device and replaced by a coin detection device with modified technology

[0018] It can therefore be generally established that the known coins, in particular multi-layered coins, and / or coins in which each side consists of a combination of materials, in particular two-colour flip coins, have a high degree of security on the one hand, although they are made of different materials on each side. , but cannot be reliably detected by coin detection devices with one-sided detection

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