Roulette wheel with dish.

(42) Date of commencement of the patent: 15.10.1992 (45) Date of issue: 25. 5.1993 (56) Documentation:

(73)

Patentee:

FR-PS 816531 FR-PS 810827 FR-PS 465670 EP-A2 332113

N0V0-INVEST CASINO DEVELOPMENT AKTIENGESELLSCHAFT A-2352 GUMPOLDSKIRCHEN, LOWER AUSTRIA (AT).

The invention relates to a roulette kettle (1) having a roulette plate (4) carrying a ring (5) with radially extending webs (10) delimiting the fields (39). According to the invention, it is provided that the webs (10) delimiting the panels (39) are formed integrally with the ring (5) recessed in a recess of the roulette plate (4).

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AT 396 069 m eeraafl

The invention relates to a Roulettekessel with a roulette wheel, which carries a ring with the fields bounding radially extending webs.

From FR-PS 810 827 a roulette plate is known which carries a circular ring, wherein the circular ring is placed on an upwardly projecting projection of the Roulettellers. This specification does not give any information about the attachment of the webs on the annulus or it can be assumed that in terms of the drawing, the webs represent items that were screwed in the then known manner for limiting the fields on the annulus.

In such Roulettetellem the 37 fields are recessed and separated by the radially extending webs, which webs are screwed to the Roulette plate. It is well known that roulette machines and roulette boilers are often manipulated and that both operators and players fear manipulation of the gaming machines. Especially the webs are the target of various manipulations and the invention aims to to create a roulette wheel with a roulette plate in which manipulations are largely excluded, which ensures an optimal compromise between a game play desired by the operator and the player and in which device inaccuracies are eliminated as far as possible, to prevent a preference for numbers, even if this preference only a few percent advantage in terms of a hit or Profit means

A Roulettekessel Rouletteeller is inventively characterized in that the fields bounding the ridges are formed integrally with the recessed inserted into a recess of the Roulettingellers ring.

Due to the one-piece design of the webs with the Rouletteller manipulation of the webs is completely eliminated. The webs can not relax or if the field width is specified exactly and can not be changed by adjusting the screw-on bars; so that the statistical frequency of the hits can not be subsequently changed. Usually, the webs are used manually in the production of Roulette boiler, taking care to exactly radial course and exact same field width. This effort is enormous and far exceeds the effort of very accurate manufacturing an insert ring with it integrally molded webs, according to the invention, the advantage is offered that the webs or the field width can not be subsequently falsified. The possibility known in the circles of players, but with the naked eye not visible change of the bridge width can bring advantages up to an order of magnitude of more than 3% of an improvement in the chances of winning.

In addition, the exact production of the insert ring with the webs allows an improvement in the smoothness and running accuracy of the Roulettellers, so that this is optimally balanced on a pin with a flange in the Roulettewanne roulette dish rotatably mounted; For this reason, it is provided in development of the invention, in that the pin carrying the roulette plate with the recessed insert ring is integrally formed with the flange part and is machined by machining, especially turning and grinding, is formed together with the flange. So far, it has been customary to form the roulette plate bearing pin and the screwed in Roulettekessel on the ground flange part of two parts and to weld them together. Due to the welding but due to thermal stresses despite a subsequent processing slight inaccuracies in the orientation of the pin with respect to the flange or the bottom of the roulette wheel, which inaccuracies so far played no role, as by the (inaccurately) used webs these relatively small inaccuracies did not matter. Due to the insert ring now used with the integral webs, however, the balance of Roulettellers is improved so that it proved to be advantageous to integrally form the flange with the bearing pin in the most exact manner by this exact formation in one-piece design by the with Stegen integrally formed insert ring gained accuracy advantages not to reduce, but even further expand.

According to the invention thus a smooth, largely exactly running roulette wheel is created, almost completely eliminates manipulation.

It is advantageous if the insert ring and the webs formed solid brass or cast and produced by machining, especially milling. Brass has over the previously commonly used aluminum has the advantage that it is specifically heavier and thus results in a quiet and longer-running Rouletteller, but brass brings processing advantages. Brass is - as well as aluminum - not magnetic and magnetizable and excludes manipulation by means of magnets. Furthermore, the surface of brass can be slightly refined or be coated and it is particularly advantageous if at least the surface of the webs is nickel-plated or chrome-plated. This manipulation of the webs, z. B. by grinding the webs and an associated broadening of the fields, prevented because such manipulations are immediately recognizable.

The integral nature of the solid brass bars with the insert ring loosening and replacement of the webs is avoided, which is necessary when the webs loosen and no longer tightened or can be screwed. According to the invention, it is quite possible to completely replace the very precisely manufactured insert ring including the webs, which approach is welcomed by the players and the operator and can go in no time, since the insert ring recessed in a recess of the Roulettetellers fitted and in this screwed on.

-2AT396069B

Another requirement that a roulette wheel or a roulette wheel must fulfill is the unpredictability of a litter made by the croupier. The operator wishes the ball to jump as long as possible for a player's chances, who wants to predict the throw, to destroy as much as possible; the player wishes a certain unpredictability of the litter, but due to the rotation of the roulette plate and the barrel of the ball pays off a small chance to recognize the field at the last moment, in which the ball remains; the player wishes, that the ball jumps as little as possible and remains as quickly as possible. It was therefore an object of the invention to create the most exact insert ring with bars, which, in addition to its accuracy and thus the statistical requirements of the operator, also takes account of the player's requirements regarding the behavior of the ball. Due to the exact design of the roulette plate and the properties of the roulette plate described below, the operator can ensure that a litter is completely statistical in nature, while the player is not irritated by too large jumps and irregularities in the course of the ball. Through a variety of tests and tests by croupiers and players training of the webs or of the insert ring can be achieved, which regardless of the two usual diameters of the roulette balls used (19 mm or 22 mm) ensures optimal gameplay.

According to the invention, it is preferred that the back or the back edge of the webs has a buckling, the height of the outer back region (edge) being substantially constant and the height of the inner back region (edge) decreasing inwards, the angle of articulation between the two regions being in the range between 2 ° to 12 °, preferably between 4 ° to 10 °, in particular between 6 ° to 8 °. It is useful if the break point in the range of 40 to 60%, preferably 45 to 55%, the ring width is located away from the outer end of the bridge or when the height of the webs in the outer region is 15 to 27%, preferably 18 to 24%, of the width of the insert ring. The higher trained outside web gives the incoming ball a strong shock, but at the same time causes a good capture of the ball or prevents the escape of a ball from a field, even if it still has a certain not too high airspeed relative to the roulette wheel. The from the break point inwards to sloping shaped back edges of the webs allow a fallen on the roulette ball ball a fairly unhindered entry into the fields, so that in such litters also jumping the ball is largely avoided. This ball behavior is further improved if the webs are provided on both sides in their upper end with inclined surfaces whose height profile in the outer region between 1 to 3 mm, preferably between 1.5 to 2.5 mm, and their height profile in the inner region between 0.5 to 2.5, preferably between 1 to 2 mm, is which oblique surfaces merge into each other in particular with a surface intersection. It can be provided that the inclined surfaces or Chamfers with the horizontal in the outer land area an angle between 40 ° to 50 °, preferably from about 45 °, and in the inner land area an angle between 30 ° to 40 °, preferably from about 35 ° include.

It was found, that the ball thrown in by the croupier, independently, whether balls with a large diameter (22 mm) or small diameter (19 mm), were used, at the usual roulette plate rotation speeds in casinos and ball insertion speeds, after they have been unpredictably deflected by a deflector located in the roulette wheel on the roulette wheel, experiencing a powerful distraction after touching a jetty, which distraction does not go up, but rather in a direction obliquely upward, whereupon the ball was deflected unpredictably, but pretty soon came to rest without much further jumping in a field.

The selected formation of the bars gave a very large statistical dispersion of the throws and thus a great security for the operator; at the same time, however, the player's desire for a quick stoppage of the ball was met.

Also contributes to the smooth running of the ball when the integral with the insert ribs webs in their inner end region have an inwardly directed and provided with an upwardly rising bottom nose, which rests on a rising annular surface of an annular projection of the Roulettellers when the outer end of the back edge of the webs is arranged with an inner edge of an inwardly sloping annular surface of the Roulettellers at the same height

In the following an embodiment of the invention will be explained in more detail with reference to the drawing. Fig. 1 shows a section through a Roulettekessel invention. Fig. 2 shows an insert ring and Fig. 3 to 5 show different views of webs.

In Fig. 1 is a schematic section through a Roulettekessel (1) shown. The Roulettekessel (1) comprises a substantially consisting of wood base plate (2) with a substantially existing wooden peripheral edge portion (17) which carries in the upper end of a cover surface (16) which the Einwurflauffläche (32) for the ball after upper bounded on the Einwurflauffläche (32) closes down to a surface (33), on the reject or Impact body (18) are arranged, which should make the course of the ball unpredictable. In this outer casing or the base plate (2) is a metallic Roulettewanne (3) used, which advantageously consists of brass and is screwed to the base plate (2) by means of screws (34). Make sure that the base plate (2) or the roulette pan (3) are placed horizontally so as to ensure an exact run of the roulette plate (4).

-3AT396 069B

The roulette plate (4) is rotatably mounted on the surface (40) of a bearing journal (8) with a bearing unit (19) and a bearing ball (20) and on its peripheral surface by means of bearings (7). The journal (8) is integrally formed with a flange part (9) having a circular circumference and inserted in a recess (35) in the roulette trough (3) and fixed with screws (15). Between the inner, the bearing pin (8) surrounding part (36) of the Roulettetellers (4) and a circumferential, annular projection (22) on the Rouletteller (4), a truncated cone (6), preferably made of wood, arranged. Up to the Rouletteller (4) can be completed and decorated by means of decorative components (37). The truncated cone (6) is fastened with screws (14) on the roulette plate (4). The Rouletteller (4) contributes to its conclusion down a cover plate (13) which is fastened with sealable screws (12) on the Rouletteller (4), in particular to protect screws (11) against tampering, with which in a recess ( 21) in Rouletteteller (4) arranged insert ring (5) on the Rouletteller (4) is screwed. This insert ring is integrally formed with webs (10) which limit the fields (39) of the Roulettetellers (4) laterally. The webs (10) have parallel wall surfaces.

Fig. 2 shows a plan view of the insert ring (5), which is sunk into the recess (21) of the Roulettetellers (4) and fastened with the screws (11). The radially extending webs (10) are shown in Figs. 3 to 5 dargestellL closer

In Fig. 3 it can be seen that the back edge of the web (10) has a kink (28), so that the web (10) is divided into an outer, higher portion and an inner portion with sloping back edge (30). The angle (A) between the back edge (24) in the outer region and the back edge (25) in the inner region is 2 ° to 12 °.

In connection with Fig. 1 it can be seen further that the outer end of the back edge (24) is at the same height as the inner edge of a circumferential annular surface (23) of the Roulettetellers (4). The inner back edge extends into a nose (31) and passes over an angle (E), which is about 40 to 50 °, in an outwardly sloping annular surface of the circumferential projection (22).

In particular, from FIGS. 4 and 5 it can be seen that the back region of the webs (10) is chamfered on both sides with inclined surfaces (26) and (27), wherein the angle (B) between the inclined surfaces (26) and the horizontal between 40 to 50 ° and the angle (C) between the inclined surfaces (27) and the horizontal between 30 and 40 °. In plan view of FIG. 4 it can be seen that the nose (31) at an angle (D) of about 50 to 70 °, preferably about 60 °, lurchL

The underside of the nose (31) is provided with a rising inclined surface (38), wherein the inclination of this inclined surface corresponds to the inclination of the surface of the circumferential projection (22), so that a full resting occurs.

The inclined surfaces (26) and (27) merge into each other with a Flächenverschneidung and correspondingly extending back edges (30), so that a visually appealing formation of the bevels is ensured