Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Patent
1992-06-19
1994-05-31
Bartuska, F. J.
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
194345, G07D 508
Patent
active
053161203
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a housing for coin selectors, specifically for selectors with electromagnetic coils which generate a magnetic field which is modified by the coins in its path, as a function of the intrinsic characteristics of each coin; or with selectors having sensors of an optical type. This housing has been perfected in order to avoid the classical problems arising from dirt deposited by the passing coins.
One of the most advanced and effective solutions in the area of coin selectors consists of using an electronic circuit in the pathway of coins which is capable of measuring the fluctuations in the magnetic field caused by the coins. This field is generated by a series of coils, such that with the collaboration of a series of standard measurements, the device is capable of selecting different types of coins, not only by their dimensions but also by the nature of the material from which the coins are made.
To this end, the housing of the selector is provided with a rolling ramp suitable for the passage of coins and designed to carry out the pertinent measurements. More specifically, the housing is provided with two sections joined to one another in a tilted manner, which reach their limiting positions through the use of a spring. One of these sections incorporates the electronic circuit cited above, and the other incorporates the electromagnetic coils or optical sensors, as the case may be, with a "laminar" space defined between the two, which is closed on its lower side by a thin, oblique wall belonging to one of the two sections and which determines the above-cited coin rolling ramp, and which is obviously parallel to the imaginary alignment line of the coils.
Moreover, the coins, because of their constant circulation and change of ownership, are often dirty. This dirt gradually accumulates on the areas of the housing that enter into contact with the coins, specifically on those areas of the housing where the vital elements of the housing are located, that is, on the measurement zone.
This accumulation of dirt on the coin pathways brings with it the fundamental problem of having to periodically and frequently clean the selector; otherwise, the selector will reject the coins.
SUMMARY OF THE INVENTION
The housing proposed by the invention has been conceived to fully resolve this problem. For this reason, its characteristics are centered on the fact that the sector which contains the electronic circuit, and more specifically that area which pertains to the location of the measurement elements, incorporates lengthwise ribs which run parallel to the trajectory of the coin on the coin rolling ramp; these ribs provide a self-cleaning effect and prevent the accumulation of dirt and grime in this area. This cleanliness is of vital importance for achieving a good measurement.
BRIEF DESCRIPTION OF THE DRAWINGS
As a complement to the description being made and for the purpose of contributing to a better understanding of the characteristics of the invention, a single sheet of figures is attached to this specification. These figures are merely illustrative and not limiting, and represent the following:
FIG. 1 is a perspective view of a coin selector having a housing constructed in accordance with the objective of the present invention, in which its two sectors appear open, against the pressure of the spring connecting them; and
FIG. 2 is a transverse section view of the housing of FIG. 1 in a closed mode.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The housing for the coin selectors according to this invention is structured on the basis of two sections (1) and (2), joined to one another by an axis (3) which permits the tilting of one section with respect to the other against the tension of a spring (not represented in the figures). The section (1) of the housing houses the electronic control or selection circuit with its corresponding magnetic field variation sensors; section (2) contains the coils (4), represented by a dotted line in FIG. 1. These coils g
Azkoyen Industrial S.A.
Bartuska F. J.
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