Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Patent
1990-12-21
1993-03-23
Bartuska, F. J.
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
453 3, 453 57, G07D 508
Patent
active
051956268
DESCRIPTION:
BRIEF SUMMARY
The device for automatically checking metal disks and especially coins which forms the subject of the present invention is intended for sorting, identification and authentication of all types of present or future coins or metal disks having similar dimensions such as tokens, for example.
The devices for checking coins which are known at the present time perform the sorting operation by checking the characteristics of the coins, either by mechanical means for weight, diameter and thickness, or by electromagnetic means with sensors necessarily placed in an environment of non-metallic material.
As the case may be, they have the following defects : case of slot machines for pedestrians, coins, as is the case with devices having feelers, vibrators or rollers involving a large number of small mechanical parts which are subject to frequent disadjustments and are consequently difficult and costly to maintain, case of infrared detectors and are finally unstable in the maintenance of performances, are both fragile and excessively costly, this being the case of devices which employ a first disk for separation of the coins and a second disk for their detection and identification; this latter and its support are of plastic and therefore rather vulnerable. Furthermore, in these devices, the coins have to be separated one by one by means of a compartmented disk prior to detection. However, since this separation is not possible for coins having a diameter smaller than the radius of the largest coin which is accepted, this results in errors of identification.
The device for checking metal parts which forms the subject of the present invention is intended to remove the above-mentioned disadvantages. This latter is characterized in that it comprises a sorting mechanism essentially constituted by a single motor-driven circular plate which makes it possible to carry out simultaneously the functions of separation and identification of disks. This plate is toothed around its entire periphery and reinforced at the center by a portion of frusto-conical shape onto which the disks fall in a bulk admission zone. This arrangement makes it possible to disperse them very rapidly and to distribute them at the periphery. This plate rotates above a stationary portion which is surrounded almost entirely by a circular rim except in an exit zone for normal discharge of disks and on which the disks slide when they are engaged between the teeth of the plate.
This device is also provided with means for identification and authentication of disks, which mainly comprise an electromagnetic detector placed in a detection zone at the level of passing of the teeth of the plate. A signal processor makes cyclic and continuous comparisons between the items of information generated as the disks pass beneath the detector and recorded data corresponding to a model of items of information characterizing each type of disk which can be accepted by the device.
This device which has few mechanical components is very simple to construct and does not require any complicated adjustment. The large diameter of the toothed circular plate which is not limited in principle permits a large number of teeth and of spaces between teeth, thus enabling it to capture a large quantity of disks at each revolution. Since the detector for identification of disks is located at less than one half-revolution from their point of entry, the result thereby achieved is that, at a given speed of rotation, the total length of time required for checking a batch of disks is as short as possible. Moreover, this device makes it possible to accept and to authenticate two disks within a single space between teeth, thus constituting a considerable improvement with respect to the current technique which required separation of the disks one by one and gave rise to errors of identification.
Preferably, the toothed circular plate, the stationary portion and the circular rim are of metal.
The metal construction of these elements eliminates premature wear by guarding against hammering at the surface by
REFERENCES:
patent: 1210732 (1917-01-01), Voglesong
patent: 4234071 (1980-11-01), Le-Hong
patent: 4548220 (1985-10-01), Le Hong et al.
patent: 4752274 (1988-06-01), Abe
Le Hong Son
Rigolet Claude
LandOfFree
Device for checking coins does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for checking coins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for checking coins will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1345993