JP4832115B2 - coin - Google Patents

Description

    The present invention includes all fields related to the manufacture and use of coins, medals, coins for money, and the like, and particularly includes the fields of manufacturing technology, usage technology, and cleaning technology of game media coins. From the field of providing and selling equipment and equipment necessary for coin production, materials required for such materials, machinery and parts, such as wood, stone, various fibers, plastic, various metals In the field of providing materials, etc., the field of electronic components incorporated in them, the field of control-related equipment that integrates them, the field of various measuring instruments, the field of power equipment that moves the equipment and instruments, the power and energy source that is the energy Fields generally referred to as industrial machinery, such as certain electrical and oil fields, as well as testing and researching those facilities and instruments, and displaying, selling, Fields related to entry / exit, generals, results of their use, facilities for making them, fields related to the collection and transportation of garbage debris generated during operation of equipment, and efficient reuse of these garbage debris There are no technical fields that are not related to the recycling field and other new fields that cannot be envisaged at this time.

(Points of interest)
In Japan, various amusement facilities such as pachinko / pachislot stores for adults and game centers for a wide range of ages from infants to adults are provided as familiar entertainment facilities. Adopts a prepaid system that exchanges cash for various game media such as a card type, a sphere type, and a coin type. In general, a desired amount of pachinko balls using cash or a prepaid card such as a magnetic card or IC card is adopted. Borrowed into a pachinko machine, or borrowed a desired amount of metal coins into a pachislot machine, or inserted into various game machines to enjoy each game. In general, a user can freely move in the store with a pachinko ball or coin in his / her hand, and spend the required amount on a desired game machine or the like to enjoy.

    In this way, pachinko balls and coins obtained by various people are always circulated and used in pachinko machines or pachislot machines, and in in-store transport routes, etc., and some users blow cigarettes. Sometimes you can put balls in and out with a hand holding food, or you may inadvertently drop balls on the floor. Therefore, the operator of the entertainment facility should thoroughly clean and dry these stains using a dedicated washing machine, etc., take sufficient hygiene measures, and try to circulate them again in the store. Great care is taken not to make facility users feel uncomfortable with pachinko balls and coins.

    However, the coin 1 for amusement used for a pachislot machine or other game machines, for example, as shown in the cross-sectional view of the conventional coin in FIG. It is in the shape of a small metal plate such as brass, stainless steel, or white and white with a thickness T of 1.2 mm, and a peripheral rim 2 with a thickness t of 1.6 mm and a width w of 0.7 mm on the outer periphery. It has a protruding shape on both sides and is formed in an approximately I-shaped central longitudinal cross section. The logo mark and other decorations of each sales store are especially glossy or satin finish on the front and back center surfaces. Generally, it is engraved and finished with a surface finish such as rinsing or plating as necessary to achieve a beautiful finish. Grooves and stepped portions on the front and back sides and corner corner 21 portions of the peripheral rim 2 Dust, dust, dirt, etc. are likely to adhere to the Even when the cleaning machine is used, the dirt that has entered the corner 21 of the peripheral rib 2 and has adhered and solidified for a long time cannot be easily removed. The fact was that it was bothering the people.

(Conventional technology)
Among them, a core member set to a predetermined mass, for example, as proposed in Japanese Patent Application Laid-Open No. 2006-6600, “Painting body for game media”, can be used as a countermeasure. An elastic deformation adhesion layer made of a non-metallic elastic material that causes the contact portion to elastically deform due to contact with the game medium and adheres dirt on the surface of the game medium is provided on the surface of the game. When the layer comes into contact with the game medium and elastically deforms, the contact pressure between the elastic deformation adhesion layer and the game medium increases, and dirt and oil on the surface of the game medium are reliably adhered to the elastic deformation adhesion layer side to remove dirt. Cleaning with a mixture of medals and water-containing abrasive as in the invention of “Medal Cleaning Device” disclosed in Japanese Patent Laid-Open No. 2003-196703 A cleaning unit, a separation unit adjacent to the cleaning unit so as to separate the medal and the water-containing abrasive, and a circulation means for circulating the water-containing abrasive separated by the separation unit to the cleaning unit The cleaning unit is a mixture of medals and abrasives containing moisture, and the medals are polished by vibration of the vibration means, and the separating unit immerses the medals and abrasives containing moisture in the water tank. The medal cleaning device is configured to separate the medal from the water-containing abrasive by the vibration of the vibration means, and the medal to be cleaned and the water-containing abrasive are mixed in the cleaning unit. Is vibrated by the vibration means, and first hits or blows off the guide part inside the cleaning part (cleaning separation cylinder part), and at that time, the medal and the abrasive material containing moisture come into contact / sliding contact , Medal Surface such that as the (patterned portions, etc.) cleanly polished and cleaned is scattered in.

However, the former “game media dirt remover” invention is such that the corners of the game medal come into contact with the biting portion of the dirt remover and dirt such as dirt and oil is surely wiped off. In addition, it must be said that it is quite difficult to make sure that the elastic deformation adhesion layer is in pressure contact with all of a large number of coins and that the dirt is removed without leaving any dirt. However, there is a concern that the elastic deformation adhesion layer may be worn out or the wiping performance may be deteriorated in a relatively short period of time, and the economic burden of the coin cleaning process is increased. The “medal cleaning device” invention is such that the abrasive made of synthetic resin (nylon pellets) used in the cleaning section of the medal cleaning device is formed in a generally used cylindrical shape. Good However, even if an abrasive material having an angular shape (for example, a shape whose tip is crushed or a polyhedron shape) is used, it contains water, so the outer peripheral edge of medals during polishing and cleaning. In addition, the pattern parts engraved on the surface of the medal are not crushed, and the generation of polishing powder and debris is prevented, and even the dirt attached to the pattern parts engraved on the surface of the medals is effective. However, in order to effectively clean the pattern parts and the outer peripheral edge stamped on the front and back of the medals, irregular shaped pellets (abrasives) are required and these tips are crushed. Pellets and polyhedral pellets can easily be expected to wear out in a relatively short period of time, resulting in a significant reduction in the cleaning effect, and maintain a sufficient cleaning effect. Always use new abrasive to It banara not a, moreover, such as the cost of processing and recycling, etc. of used polishing material also occurs, had to leave the disadvantage of large economic burden.
(1) JP 2006-6600 (2) JP 2003-196703

(Awareness of problems)
As described above, the previously proposed “game media dirt remover” and “medal cleaning device” are all wiped by bringing the elastic deformation adhesion layer into contact with the front and back surfaces and the peripheral portion of the coin (medal), Alternatively, it is intended to remove dirt adhered to the grooves and stepped portions of the front and back surfaces of the coin (medal) and the corner corners of the peripheral portion, etc., by performing a cleaning process such as applying vibration by bringing an abrasive material into contact. However, they depend on the elastic deformation adhesion layer that directly contacts coins and medals to remove dirt, and the cleaning performance based on the elasticity or outline shape of the abrasive, etc., and the elasticity of the elastic deformation adhesion layer deteriorates It must be changed frequently when it is hardened and the wiping performance deteriorates or it is damaged due to wear, etc. In addition, the abrasive is worn and rounded, and the stamped pattern on the front and back of the coin When the groove, the stepped portion and the corner corner of the peripheral portion no longer come into contact with each other, the abrasive must be replaced with a new one. In any case, a game in which a huge number of coins (medals) are cleaned In facilities and the like, the economic burden is too great, and the current situation is that although the reduction of maintenance costs related to these cleaning devices is a serious issue, they are left unattended.

(Object of invention)
Therefore, rather than improving the coin cleaning technology that is repeated every day, the present invention can be used over a long period of time while polishing and refinishing the surface until wear and damage progress once it is produced. Based on the idea that if the coin-side shape itself is suitable for cleaning, it would be possible to drastically reduce the cost of repeated cleaning processing every day. In contrast to the past, it was decided that it would be possible to develop a new coin shape that can improve the cleaning performance, so we started its development and research very quickly, and made many trials and errors and many prototypes. As a result of repeating the experiment, this time, we finally succeeded in realizing a coin with a new structure, and in the following, an embodiment representing this invention shown in the drawings and To, and that will be described in detail its configuration.

(Structure of the invention)
As will be clearly understood from the embodiments representing the present invention shown in the drawings, the coin of the present invention basically comprises the following configuration.
That is, a small disc body having a predetermined diameter, the outer edge of each of the circular front and back surfaces continuous with the other peripheral side surface is formed with an arbitrary width portion on the rim portion restricted to the maximum wall thickness of the small disc body. In addition, a predetermined central range of each of the circular front and back surfaces surrounded by the rim portion is a central raised surface left in a range not exceeding the maximum wall thickness of the small disc body, and the rim portions on the front and back surfaces The desired sign consisting of a pattern, characters, or a combination thereof on the main surface area of the front and back surfaces including the central raised surface excluding, is represented as an uneven portion in a range not exceeding the maximum thickness dimension of the small disk body. A concave portion that surrounds each central raised surface between the inner peripheral edge of the rim portion and the outer peripheral edge of the central raised surface on each of the circular front and back surfaces, and is formed on a certain identification display surface. The bottom (shallow or thin) bottom parts of Arranged to regulate, and which was set to the thumb or other slightly larger radius of curvature R than the general value of the radius of curvature of the fingertip gripper surface of the finger of the human body, yet the same radius from the center of the small disk body It has a symmetrical shape on the front and back of the part, and it fits well with the curved shape of the fingertips, and it is easy between the thumb and other fingertips facing it regardless of the orientation of the coin. An annular recess for gripping that can be securely clamped is formed, a contour portion between each central raised surface outer periphery and each annular recess inner periphery, and each annular recess outer periphery and rim inner periphery. Each of the contour portions of each of the two parts is a flat surface or curved surfaces, or a combination of a flat surface and a curved surface, which are adjacent to each other with an obtuse angle exceeding 90 ° in the cross section in the thickness direction passing through the center of the small disk body. Two planes and cross each other In order to avoid the shape corresponding to the ridge generated in the above, the coin is defined as a gist of a configuration that is regulated and formed so as to have a smooth cross-sectional shape by a continuous surface finished to an R surface with a suitable radius.

In a more specific expression, it is a small disk body having a predetermined diameter, and the outer peripheral edge of each circular front and back surfaces continuous to the other peripheral side surface is an arbitrary width portion, and the maximum thickness dimension of the small disk body And forming at least the contour range of a circular shape concentrically at the center of each small disk body on each of the front and back surfaces of the circle surrounded by the rim part. The central raised surface is left in the range that does not exceed the wall thickness dimension, and the desired sign consisting of a pattern, characters, or a combination thereof is placed on the main surface area of the front and back surfaces including the central raised surface excluding the rim on the front and back surfaces. In addition, it is formed on the identification display surface represented as an uneven portion in a range not exceeding the maximum thickness of the small disc body, and the inner peripheral edge and the central raised surface outer peripheral edge of each of the circular front and back surfaces Between them, with a recess intended to surround each central raised surface The lowest of the recess (shallow or thin) bottom shaped portion with each other is arranged to restrict to match front and back, and a large slightly than the typical value of the radius of curvature of the fingertip gripper surfaces of the thumb and other fingers of the human body It is set to the radius of curvature R, and it has a symmetrical shape on the front and back surfaces of the same disc from the center of the small disk body. Even so, the annular recess for holding that can be easily and reliably held between the thumb and the other fingertip that faces the thumb is arranged concentrically from the center of the small circular body. It is formed so as to correspond to the symmetrical part of the front and back surfaces so as to be related, and the contour part of each central raised surface outer peripheral edge and the inner peripheral edge of each annular concave part, and the contour part of each annular concave part outer peripheral edge and rim part inner peripheral edge, respectively Passes through the center of the small disk In the cross section in the thickness direction, the obtuse angle exceeding 90 ° is secured to each other, and two planes or curved surfaces, or two surfaces by a combination of a plane and a curved surface are formed, and the shape corresponding to the ridge generated by the intersection of each other is Therefore, the coin is formed by regulating and forming a smooth cross-sectional shape with a continuous surface finished to an R surface with a suitable radius.

    As described above, according to the coin of the present invention, only the contour portion of each rim portion facing the recess between each rim portion and the identification display surface of each surface of the small disk body is the center of the small disk body. In the cross-section in the thickness direction passing through, it is regulated and formed so that it becomes a smooth cross-sectional shape that does not become the shape corresponding to the ridge generated by the intersection of two adjacent faces, so it touches the hands of many people and sells automatically It is supplied to pachinko machines, pachislot machines, game machines, etc. by touching the coins (coins) supplied to machines, coin sorters, coin counters, automatic teller machines, etc. Various coins and medals such as amusement coins as a game medium, especially on the contour of each rim facing the recess between the front and back rims and the identification display surface, To prevent clogging with dust It is possible to prevent and keep it hygienic, and it has higher cleaning performance than a coin having a step shape on the contour of the conventional rim, and a high cleaning effect is obtained by a relatively simple and short cleaning operation. In addition to reducing the work burden on coin hygiene management, it is possible to provide coins that have been cleaned thoroughly to customers who use coins, making a good impression and helping to attract customers. A number of excellent features such as are obtained.

    Further, in the coin of the present invention, the outer edge of each circular front and back surfaces continuous to the outer peripheral side surface of the small disc body is formed with an arbitrary width portion on the rim portion restricted to the maximum wall thickness of the small disc body. By doing so, when put in the various machines described above, it is possible to accurately measure the outer contour of the coin small disk shape and authenticate whether it is legitimate money or coins, In addition, the main surface of each of the front and back surfaces surrounded by the rim is formed on the main surface of the circular plate so that the desired mark made of a pattern, characters, or a combination thereof does not exceed the maximum thickness of the small circular plate. What is formed on the identification display surface represented as a part can be handled and used by various machines, and people can clearly identify and properly use coin signs by visual inspection. Equivalent to conventional coins In addition, the contour part of each rim that faces the recess between each rim on each side of the circular front and back and the identification display surface has been adopted for conventional coins and medals. In the cross-section in the thickness direction passing through the center of the small disk body, it is regulated and formed so as to have a smooth cross-sectional shape that does not become the shape corresponding to the ridge generated by the intersection of two adjacent faces. As a result, it has a great appearance that it can be distinguished from other coins and has a new appearance, which is different from the conventional ones.

    And, in the cross section in the thickness direction passing through the center of the small disk body, the contour portion of each rim portion facing the recess between each rim portion of each circular front and back surface of the coin of the present invention and the identification display surface In order to avoid the shape corresponding to the ridge generated by the intersection of two adjacent surfaces, the contour of each rim part on the front and back surfaces is controlled and formed so as to have a smooth cross-sectional shape by a continuous surface finished to an R surface of a suitable radius. It is possible to make the part with a clearer cross-sectional shape, and it is easier to maintain a clean state by eliminating the formation of edges that can cause contamination of oil, grease, dirt, dust, etc. In addition to being excellent in nature, it is possible to achieve an elegant external grace and improve the texture of the coin itself.

    Furthermore, in the cross section in the thickness direction passing through the center of the small disk body, the contour portions of the rim portions facing the recesses between the respective rim portions of the circular front and back surfaces of the coin of the present invention and the identification display surface are mutually Adopting an appropriate radius so as not to form a shape corresponding to a ridge caused by crossing each other by forming two surfaces by adjoining each other by securing an obtuse angle exceeding 90 °, or between surfaces or curved surfaces, or a combination of a plane and a curved surface. In the case of a product that is regulated and formed so as to have a smooth cross-sectional shape by a continuous surface finished to the R surface, the two surfaces that intersect at an obtuse angle exceeding 90 ° reliably eliminate the extreme stepped portion between them and become dirty. In addition to further improving the performance of preventing adhesion, the R surface finish eliminates the formation of edges at the intersection of the two surfaces, giving it a unique and rich appearance that did not exist at all in conventional coins. It will be a beautiful and excellent model.

    Furthermore, the center predetermined range of each of the small disk body and the circular front and back surfaces of the coin of the present invention is a central raised surface left in a range not exceeding the maximum thickness dimension of the small disk body, In the main surface area of the front and back surfaces including the central raised surface excluding the rim part, the desired mark consisting of a pattern, characters, or a combination thereof does not exceed the maximum thickness dimension of the small disk body. An annular concave portion surrounding each central raised surface is formed between the inner peripheral edge of the rim portion and the outer peripheral edge of the central raised surface on each of the circular front and back surfaces. , Each of the contour portions of the outer peripheral edge of each central raised surface and the inner peripheral edge of each annular recess, and the contour portions of the outer peripheral edge of each annular recess and the inner peripheral edge of the rim portion, in the thickness direction cross section passing through the center of the small disk body Securing obtuse angles exceeding 90 ° to each other A smooth cross-section is formed by a continuous surface that is appropriately finished with a radius R surface so as not to have a shape corresponding to a ridge generated by crossing each other or two surfaces by a combination of curved surfaces or curved surfaces. In this case, the inner and outer contours of the front and back recesses are each finished with a smooth continuous surface, effectively preventing dirt from sticking, and further, the central predetermined range of the coin front and back surfaces is raised centrally. In the case of the remaining surface, the outer peripheral side of the central raised surface of each of the front and rear surfaces is formed with an annular recess inside the rim, and the contours of the outer peripheral edge of each central raised surface and the inner peripheral edge of each annular recess It is possible to realize a coin shape exhibiting a very characteristic appearance by continually smoothing each of the portions and the contour portions of the outer peripheral edge of each annular recess and the inner peripheral edge of the rim portion in a smooth cross-sectional shape. In addition, when the maximum thickness of the front and back central raised surfaces is set within a range that does not exceed the maximum thickness of the small disc body, the malfunction of various machines that receive coins can be avoided, and normal coins can be avoided. Can be used in the same manner as the above, and it is possible to achieve both the unusual design and practicality, and to give the user a sense of satisfaction that cannot be obtained with conventional coins.

    In addition, the R-shaped concave portion formed in an annular shape surrounding the periphery of the central raised surface on the front and back sides of the coin serves as a gripping groove when being inserted into the coin insertion slot of various machines, resulting in a curved shape of the fingertip. Familiarize well and can be held easily and reliably between the thumb and the other fingertips facing the coin, regardless of the omnidirectional orientation of the coin, and with the same radius from the center of the small disk In the case where a circular concave portion having a symmetrical shape is formed on the front and back surfaces of the portion to be, the force vector between the fingertips with the grips matches the thickness direction of the coin and faces each other. When the held coin is pushed into the slot for insertion, the central raised surface, which is concentric with the small disc body and set to the same diameter on the front and back surfaces, is between the annular recesses set to be symmetrical on the front and back sides. Difference in height (thickness dimension) It creates a high frictional force with the gripping fingertips, and can be inserted and operated securely without tilting the coin posture, which is significantly higher than conventional flat coins It is easy to handle, not only for healthy people, but also for elderly people who have lost their sense of finger movements and people with disabilities in their fingers, and it is also specially designed as a barrier-free coin, coin, medal, etc. The effect of will be demonstrated.

In implementing the present invention having the above-described configuration, the best or desirable mode will be described.
The small disc body forms a whole coin, and as a main body that forms a coin for money as a game medium used in coins, medals or pachislot machines or game machines for securing a predetermined diameter and thickness. In addition to being able to function as a conceptual representation of the outer shape of the coin of the present invention, it can be said that it is a blank in the previous stage of coin production when shown by another expression It is possible to set various diameters and thickness dimensions of various coins, various medals, various entertainment coins, etc., and basically, a metal plate material having a predetermined thickness dimension. Should be manufactured by stamping a small disc-shaped blank from the blank, and applying the desired pressing to the outer peripheral side and the front and back sides of the blank. And other stamping processes such as cutting, laser processing, electrical discharge processing, etching processing, etc., including knurling and milling, etc. It is possible to perform heat treatment such as annealing at an appropriate time during the manufacturing process as necessary.

    Further, the small disk body can be a single or a combination of a plurality of materials, and more specifically, gold, platinum (palladium, iridium), silver, copper, aluminum, nickel, Various metals such as chrome, titanium, iron, etc., or magnesium alloys, stainless steel, brass (brass), white bronze, western silver (white), bronze and other alloys, or so-called bimetal coins that combine these metals ( Double coins), and made of non-metal materials such as ceramics or synthetic resin, or a combination of these metals, alloys, non-metals, etc. After marking the outer peripheral wall surface and front and back surfaces, etc., gold plating, silver plating, nickel plating, chrome plating, chromate, rinsing, anodizing, ceramic Gold (silica coating, alumina coating) electrodeposition coating, etc., it is possible to perform appropriate surface treatment, it is needless to say that can be made of course subjected them to polish or cleaning or the like.

    The rim part regulates the arbitrary width part of the outer edge of each circular front and back continuous with the outer peripheral side surface of the small disk body to the maximum thickness dimension of the small disk body, and the contour shape of the small disk body It has a clear function, and can be inserted into a vending machine, coin sorter, coin counter, automatic teller machine, etc., and used as a usable currency, or a pachinko machine, pachislot machine or game machine. The outer shape and dimensions of the coin or medal are set so that it functions as an amusement coin that can be normally inserted and used, and the peripheral edge adjacent to the front and back recesses is in friction with the user's fingers. To ensure that it can be securely held without being dropped inadvertently, and each of the arbitrary width portions on the outer peripheral wall surface and the front and back wall surfaces is appropriately provided with anti-slip and / or decorative unevenness processing. To do It is possible, that some or all, or made of different metals from the coin center side, also like assumed subjected to different surface treatments can be employed depending on necessity.

    The identification display surface has the main surface of each of the circular front and back surfaces surrounded by the rim part of the small disk body, and a desired mark made of a pattern, a letter, or a combination thereof, indicating that the maximum thickness of the small disk body is It is formed on the uneven part of the range not exceeding the thickness dimension, and functions as various display surfaces, and also fulfills the function of giving an aesthetic appearance to the whole, and more specifically, on either the front or back side of the coin It can be said that it is a sign indicating the country of issue, face value, date of manufacture, pattern, pattern, etc., or on the front and back of the coin / medal for entertainment, This is the part that displays the sign. The sign should be by press molding in consideration of productivity, but any of the engravings by various processing techniques such as cutting, etching, electric discharge machining, laser machining, etc. According No harm even ones, the display range is approximately or within the entire front and back surfaces of the small disk body except the rim part, or may be any portion therein.

    In addition, the sign on the identification display surface should be a sculpture formed by various processing techniques, but it is suitable for surface treatment such as plating or painting, or for decoration such as artificial or natural jewelry, glass, plastic, cloisonne, etc. It is possible to embed parts, etc., and when applying plating, painting, decoration parts, etc. that can be finished to a smooth surface without generating irregularities, It is not impossible to make the entire display including the rim part out of the front and back main surfaces as an identification display surface.

    The recess faces the front and back main surface side of the rim part where the outer edge of the small disc body becomes a trap, and does not form a shape corresponding to a ridge caused by a step part, a corner part, or the intersection of two adjacent faces. , Formed to be continuous with a smooth cross-sectional shape, serve as a boundary between the rim portion and the identification display surface, and should be set to a thickness dimension thinner than the maximum thickness of the rim portion, The contour portions facing the respective rims on the front and back surfaces of the small disk body do not have a shape corresponding to a ridge generated by the intersection of two adjacent surfaces in the cross section in the thickness direction passing through the center of the small disk body. In addition, it should be regulated and formed so as to have a smooth cross-sectional shape by a continuous surface finished to an R surface of a suitable radius, and contour portions facing the respective rim portions of the front and back surfaces of the small disk body Is a cross section in the thickness direction passing through the center of the small disk body, In particular, the obtuse angle exceeding 90 ° is ensured, and two planes or curved surfaces adjacent to each other, or two planes by a combination of a plane and a curved surface, are formed as appropriate so as not to have a shape corresponding to a ridge caused by mutual intersection. It is desirable to regulate and form a smooth cross-sectional shape by a continuous surface finished to a radius R surface.

In addition, the concave portion should be formed in a smooth concave shape by press molding, cutting, etching, laser processing, electric discharge processing, etc., but engraving various patterns and characters, or combinations thereof It can be applied or engraved with uneven shapes for anti-slip, as well as surface treatment such as plating and painting, or decoration such as artificial or natural jewelry, glass, plastic, cloisonne It is possible to embed parts, etc., and when applying plating, painting, decoration parts etc. that can be finished to a smooth surface without unevenness, adjacent rim parts or As a continuous surface on the front and back main surfaces, it is possible to display a pattern, characters, or a combination thereof, or embed a decorative part.
Furthermore, the concave portion can be an annular shape that is formed inside the outer peripheral rim portion and has a symmetrical shape on the front and back surfaces corresponding to the same radius portion from the center of the small disk body. When concentric annular recesses are formed on the front and back surfaces, the bottom (shallow or thin) bottom portions of the recesses are arranged so that they are flush with each other in consideration of gripping with the fingertips. Is desirable.

    The central raised surface is the main surface of the front and back, which is the central side of the concave portion adjacent to the central side of the rim portion formed on the outer peripheral edge of the small disc body, and the equivalent range is a range that does not exceed the maximum rim thickness dimension. It is a thick uneven part that compensates for the weight of coins lost due to the formation of the recesses, making it possible to use it as a coin or amusement coin, and inserting it into the coin slot of various machines that accept coins. When inserting the coin, it engages with the fingertip gripping the vicinity of the outer periphery of the coin, assists the pushing operation of the coin, and obtains a new design in appearance, and at least the peripheral edge of the contour The part must be set to a thickness that is thicker than the surrounding recess, so long as it does not exceed the maximum thickness of the rim, and the surface is a spherical type with a relatively large curvature, or only the peripheral part is continuous. Or Concave surface raised in a continuous shape, conical shape or polygonal pyramid shape with the tip side cut into a flat surface, or an identification display surface with a pattern, characters, or a combination thereof, a stamped protruding portion itself, etc. It can be set in various shapes, and the central raised surface itself can be used as an identification display surface, and can be made of a metal different from the peripheral concave portion and the rim portion, or any of various surface treatments. In addition, the central raised surface and the concave portion are made of the same material or the same surface treatment, and only the rim portion has a different appearance or texture. it can.

The central raised surface on the front and back of the small disk body is a shape corresponding to a ridge generated by the intersection of two adjacent surfaces in the cross section in the thickness direction passing through the center of the small disk body at the outer peripheral edge portion facing the recess. In the thickness direction cross section passing through the center of the small disk body, the contour portions of the outer peripheral edges facing the recesses are adjacent to each other. It is desirable that the shape is equivalent to the ridge generated by the intersection of the two surfaces, and is preferably regulated and formed so as to have a smooth cross-sectional shape by a continuous surface finished to an R surface with a radius as appropriate. The contour portion of the outer peripheral edge portion in the cross section in the thickness direction passing through the center of the small disk body ensures an obtuse angle exceeding 90 ° with each other, and two adjacent planes or curved surfaces, or a combination of a plane and a curved surface. One side and each other A slot for coin insertion machine can be formed by restricting and forming a smooth cross-sectional shape by a continuous surface finished to an R surface with a radius as appropriate so as not to have a shape corresponding to a ridge generated by intersection. For the purpose of improving the operability of pushing into the surface, it is desirable that the front and back surfaces have a concentric circular shape and a front and back symmetrical shape.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    1 is illustrated in the cross-sectional view of the coin in cross section, the cross-sectional view of the coin in FIG. 2, the cross-sectional view of the rim portion in FIG. 3, and the cross-sectional view in the vicinity of the recess surrounded by the chain circle A in FIG. The case is a small disk body 1 having a predetermined diameter, and a rim in which the outer edge of each circular front and back continuous with the other circumferential surface is restricted to the maximum wall thickness of the small disk body 1. The main surface 3 of each of the circular front and back surfaces surrounded by the rim portion 2 is formed on the portion 2, and a desired mark made of a pattern, a character, or a combination thereof has a maximum thickness of the small disk body. Each is formed on the identification display surface 4 represented as a concavo-convex portion in a range not exceeding the thickness dimension, and each of the circular front and back surfaces faces the concave portion 5 between the respective rim portion 2 and the identification display surface 4. Only the contour part of the rim part 2 has two adjacent faces in the cross section in the thickness direction passing through the center of the small disc body 1. Regulation so as to be smooth sectional shape not a crest corresponds in shape caused by cross, formed comprising, shows one example representative of the coin of the present invention.

    As shown in FIGS. 1 to 4, the coin 1 is a small disk body 1 made of a blank set by punching a stainless steel plate and having a diameter D25 mm and a maximum thickness T1.6 mm. However, it is formed on the rim portion 2 having a thickness of t1.6 mm and a front and rear surface width w of 0.7 mm, and each corner portion of the front and rear surfaces is finished at 90 ° by rolling with a roller or the like or die press molding. In addition, the rim portion 2 is formed such that the outer peripheral wall surface between the front and back surfaces is a cylindrical surface having an axial center in the circumferential direction around the center of the small disk body, or a polygonal cylindrical surface having an R surface finish. The rim portion 2 can be partly or wholly engraved with a non-slip shape or an uneven shape for decoration or practical use.

    In a range corresponding to the center of each of the front and back main surfaces 3 and 3 of the small disk body 1, a central raised surface 6 set in a planar circular shape having a diameter d10 mm concentrically arranged on the small disk body 1 is provided. 6 is formed to have a maximum thickness dimension T set to 1.6 mm which is the same as the thickness dimension t of the rim portion 2, and the outer circumferences of the central raised surfaces 6, 6 on the front and back surfaces of the same small disk body 1. The center of the small disk body 1 is located in the annular area on the inner side of the rim portion 2 in the planar annular area where the width dimension on one side across the center of the small disk body 1 is 6.8 mm. In the cross section in the thickness direction that passes, an R chamfered concave shape having a radius of R19.5 mm is formed, and the annular concave portions 5 and 5 having a minimum thickness set to 1.0 mm are formed so as to have a front and back symmetrical shape. It has become.

    Each of the recesses 5 and 5 is formed in an R-chamfered concave shape having a radius of R 19.5 mm, but has a slightly larger radius of curvature than the general value of the radius of curvature of the fingertip holding surface of the thumb or other fingers in the human body. R or a sufficiently large radius of curvature R, and the width dimension of each of the recesses 5 and 5 is 6.8 mm, but the general length dimension of the first joint of the thumb and other fingers in the human body It is desirable to set the width to be narrower than the value so that any user can easily hold it between the fingertips. In the gripping process, a plurality of concave / convex patterns are formed and the frictional force in the direction of the diameter of the coin (crossing the center) when gripped by a fingertip is increased or a matte surface finish is applied. Possible to increase the omnidirectional friction force It is.

    Annulus having a width of 0.7 mm in FIG. 2 and FIG. 3 between the rim portion 2 in the cross section in the thickness direction passing through the center of the small disc body 1 and the concave portion 5 connected to the rim portion 2. The crossing angle θ between the planar cross section in the plane and the tangent line L of the cylindrical cross section with the radius of curvature R 19.5 mm of the concave surface 5 inside is set to an obtuse angle exceeding 90 °, and as shown in FIG. In order to avoid a shape corresponding to a ridge generated by the intersection of two adjacent surfaces, the shape is regulated and formed so as to have a smooth cross-sectional shape by a continuous surface finished to an R surface with a radius r of 0.5 mm. It has become.

    1 and FIG. 2, on the central raised surfaces 6 and 6 on the front and back of the small disk body 1, a desired mark made of a pattern, a character, or a combination thereof has a maximum thickness of the small disk body. It is formed on the identification display surfaces 4 and 4 represented as uneven portions in a range not exceeding the dimension T 1.6 mm, and the central raised surfaces 6 and 6 and the recessed portions 5 and 5 on the front and back surfaces of the small disk body 1 are formed. It is also possible to form the identification display surfaces 4 and 4 in the included range, and in any case, the processing is performed simultaneously with the engraving of the central raised surfaces 6 and 6 and the recesses 5 and 5 or It can be engraved by a separate process. Furthermore, the central raised surfaces 6 and 6 are used as the identification display surfaces 4 and 4, and the recesses 5 and 5 are provided with a non-slip uneven shape. can do.

    As shown in the cross-sectional view of the coin with the concave shape changed in FIG. 5, the coin 1 has a planar annular range with a width P in the vicinity of the bottom of the concave portions 5 and 5 on the front and rear surfaces in a flat plate shape parallel to the front and back surfaces. In addition, as shown in the cross-sectional view of the coin in which the entire front and back main surfaces of FIG. 6 are formed in a flat surface shape, the diameter D of the small disc body 1 is 25 mm, and the maximum of the rim portion 2 is shown. The thickness dimension t is set to 1.6 mm, the front and rear surface width dimension w of the rim portion 2 is set to 2.0 mm, the main surfaces 3 and 3 and the thickness T are set to 1.1 mm, respectively. The two surfaces can be formed continuously with a curved surface having a radius of R 19.5 mm so as to have a smooth cross-sectional shape. In the case of an integrated one, the main surfaces 3 and 3 and the surrounding recesses 5 and 5 A range including, it is possible to identify the display surface 4.

    The dimensions of each part of the coin 1 can also be set variously, and in the case where the coin 1 is for a pachislot machine, it matches the size and weight of the coin that will be the game medium for the various pachislot machines. The diameter D in FIGS. 2 and 6 is 19.5 mm, 21.3 mm, 22.2 mm, 23.0 mm, 24.2 mm, 25.0 mm, 26.0 mm, 26.7 mm. 27.0 mm, 28.0 mm, 28.5 mm, 29.0 mm, 30.0 mm, 30.3 mm, etc., and the thickness t of the rim 2 can be set to 1.6 mm, 2.0 mm, etc. Further, the outer diameter D and the thickness t of the rim portion 2 can be set, and the curvature radius R and the main surface thickness T of each of the recesses 5 and 5 and the width w of the rim portion 2 are set according to the outline dimensions. And the diameter d of the central raised surfaces 6, 6 Can also dimensions appropriately set.

(Operation of Example)
The coin 1 of the present invention having the above-described configuration is set in the shape shown in FIGS. 1 to 4, so that the outer diameter D of the small disc body 1, the thickness t of the rim portion 2, and By appropriately setting the thickness T of the main surfaces 3 and 3, it can be used in a corresponding type of pachislot machine without malfunction, and on the inner side of the rim portion 2 on the outer peripheral edge of the small disk body 1. The formed annular recesses 5 and 5 are formed in a cylindrical surface shape having a predetermined radius of curvature R 19.5 mm, and the two surfaces of the rim portion 2 and the annular recesses 5 and 5 are as shown in FIG. , The crossing is made at an obtuse angle θ exceeding 90 °, and as shown in FIG. , 3 and the peripheral rim 2 are eliminated to prevent the adhesion of oil stains and dirt. It is possible to stop, the washing water from the coin washing machine etc. arrives smoothly and the friction of brushes, sponges and other washing tools reaches the entire surface without any unevenness, and the washing workability is improved.

    In addition, central raised surfaces 6 and 6 are formed at the front and back centers of the small disc body 1, and annular recesses 5 and 5 are formed between the other peripheral side and the rim portion 2, which is unique to the conventional type. A coin 1 having a shape and a unique appearance can be provided, and the two continuous portions of the front and back central raised surfaces 6 and 6 and the annular recesses 5 and 5 have a predetermined radius (not shown). In the case of the R chamfer finish, stepped irregularities are eliminated to prevent the adhesion of oily grease and dirt, and the high smoothness of the surface is obtained by the smooth continuous surface shape.

    Further, the annular recesses 5 and 5 are formed in a curved recess shape between the peripheral rim 2 and the central raised surfaces 6 and 6 with a radius of curvature R of 19.5 · and a radial width of 6.8 ·. It is easy to engage with the curved shape of the user's fingertips, can ensure a high frictional force when holding, and can prevent unintentional falling, and the circumference of the coin 1 It can be gripped from any direction, and when it is inserted into the slot for coin insertion of a pachislot machine, it holds the appropriate position that is outside the center of the coin 1 between the fingertips of the index finger and thumb from the thickness direction. When the card is inserted into the slot for insertion, the diameter direction (direction perpendicular to the center of the small disk body 1) depends on the height (thickness dimension) difference between the center raised surfaces 6 and 6 of the coin 1 front and back. A high frictional force is obtained.

    The coin 1 shown in FIG. 5 is formed with a flat plate portion having a predetermined width P on the bottom surface corresponding to the center of the radial width dimension of the front and back recesses 5 and 5, and the minimum thickness dimension of the coin 1 is set. A coin having a relatively large diameter D, which can secure a desired thickness dimension without lowering, and can sufficiently secure the width dimension of the recesses 5 and 5 and the curvature radius R on the outer peripheral side and inner peripheral (center) side. It will realize high design and ease of handling for medals and medals.

    As shown in the coin 1 shown in FIG. 6, when the width dimension w on the front and back sides of the rim portion 2 formed on the outer peripheral edge is set to be relatively large, an outer shape that cannot be obtained with a conventional coin is exhibited. In addition, not only the outer peripheral wall surface of the rim part 2 but also the front and back side portions (the range of the width dimension w) can be decorated with various engravings and engravings such as patterns, letters, or combinations thereof. Become.

(Effect of Example)
The coin 1 of the embodiment having the above-described configuration has the conventional coin 1 shown in FIG. 7 as shown in FIG. 1 to FIG. 4 in addition to the features described in the section of the effect of the present invention. In the case where the corners 21 of the rim portion 2 are abolished and the concave portions 5 and 5 having a relatively large radius of curvature R are formed, the gripping ability equivalent to or higher than that of the conventional coin 1 can be obtained and the step portion The problem of adhesion of oil and grease stains and hand stains is surely eliminated, and as shown in FIGS. 3 and 4, the two surfaces of the rim portion 2 and the concave portion 5 are made continuous by an obtuse angle θ exceeding 90 °, Moreover, it has a R surface finish with a radius r of 0.5 mm and can ensure high cleanability. Further, as shown in FIGS. 1 and 2, each central ridge is formed between the front and back rim portions 2 and the central ridge surfaces 6 and 6. Annular recesses 5 and 5 that enclose the surfaces 6 and 6 are formed and are used to insert a pachislot machine. When the coin 1 is inserted into the slot, the front and back sides of the coin 1 near the inner side of the rim 2 and near the outer peripheral side of the coin 1 main surface 3, 3 are gripped between fingertips. The annular recesses 5 and 5 can be held from any of the circumferential directions of the coin 1, and the recesses 5 and 5 are arranged and formed at the matching positions on the front and back surfaces, and the fingertip has a curved surface shape. It is easy to obtain a high frictional force by matching, can securely grasp the part off the center of the coin 1 and can throw it in as expected without inadvertent dropping or holding it as expected. The effect that the rim portion 2 of the coin 1 can be aligned with the slot is obtained.

    Further, when the rim portion 2 of the coin 1 is aligned with the slot for insertion of the pachislot machine and pushed in, there is a difference in wall thickness from the bottom surface portion of the concave portions 5 and 5 formed by the front and back central raised surfaces 6 and 6 of the coin 1. Since the frictional force in the coin 1 diameter direction (the direction intersecting the center of the small disk body 1) is expressed, compared to the case of pushing in the conventional flat coin 1 as shown in FIG. A more reliable push-in operation is possible, and it is possible to improve the practical use performance by making the complicated insertion operation to the pachislot machine smooth and reliable. The central raised surfaces 6 and 6 formed in the center change not only the shape but also the color and texture by changing the surface treatment of the bimetal coin by changing the material and the surface treatment only from the surroundings. It is possible It becomes capable of producing Xiu coins and medals added value.

    In the coin 1 shown in FIG. 5, when the front and back concave portions 5 and 5 have bottom surfaces finished in a flat plate shape having a width P, the shape of the concave portions 5 and 5 is further changed so that the front and rear concave portions 5 and 5 are placed between the fingertips. It is possible to change the gripping feeling and tactile sensation when picked, and give a sufficient radius of curvature R even in the case of a relatively large coin 1, and also the thickness dimension between the bottoms of the recesses 5 and 5 There is an advantage that the weight, the durability strength, etc. of the coin 1 can be appropriately set by ensuring sufficiently.

    The coin 1 shown in FIG. 6 has a width dimension w in a range corresponding to the maximum thickness dimension t on the front and back sides of the rim portion 2 as compared with the conventional coin 1 as shown in FIG. In addition to enhancing the profound feeling of the coin 1 itself, increasing the mechanical strength and wear resistance of the rim 2, various engravings and engravings are also applied to the width dimension w range. It is possible to use coins and medals with high added value as exhibiting a characteristic appearance.

(Conclusion)
As described above, the coin of the present invention can achieve the intended purpose evenly by its new configuration, and is easy to manufacture, and is manufactured by substantially the same processes and man-hours as conventional coins. In addition, it can be manufactured at a relatively low cost while having a shape with excellent texture, and it is difficult to get dirt and has excellent cleaning workability. The amount can be greatly reduced, and it can be maintained and managed as much more economical than before. In addition to medals, the shape of its practicality makes it useful as a coin for coins. The pachinko / pachislot industry and the game industry are solid, the coin and medal manufacturing industry and precious gold Ltd. coin such a production, high also be assessed from the sale to the precious metal industry, etc., available across a wide range, it is expected to be those that continue to spread.

The drawings show some typical embodiments that embody the technical idea of the coin of the present invention.
It is a perspective view which shows the cross-section coin. It is sectional drawing which shows a coin shape. It is sectional drawing which shows a rim | limb part shape. It is sectional drawing which expands and shows the inside of the chain line circle | round | yen A in FIG. It is sectional drawing which shows the coin shape which added the change to the recessed part shape. It is sectional drawing which shows the coin shape which added the change to the main surface shape. It is sectional drawing which shows the shape of the conventional type coin.

1 coin (small disk)
2 Rim part
21 Same angle corner 3 Main surface 4 Identification display surface 5 Recessed portion 6 Central raised surface D Coin diameter d Diameter of central raised surface T Maximum thickness of main surface t Maximum thickness of rim portion w Width of front and back side rim portion R Recessed portion Radius of curvature L tangent of radius of curvature circle θ obtuse angle exceeding 90 ° r chamfer radius P parallel range width of recess bottom

Claims (2)

A small disk body having a predetermined diameter, and the outer edge of each of the circular front and back surfaces continuous to the other circumferential side surface is formed with an arbitrary width portion on the rim portion restricted to the maximum wall thickness of the small disk body. The central predetermined range of each of the circular front and back surfaces surrounded by the rim portion is a central raised surface left in a range not exceeding the maximum thickness of the small disk body, excluding the front and back rim portions. Identification that a desired mark consisting of a pattern, a letter, or a combination thereof is represented as an uneven portion in a range that does not exceed the maximum thickness of the small disk body in the main surface range including the central raised surface. A recess that surrounds each central raised surface between the inner peripheral edge of the rim portion and the outer peripheral edge of the central raised surface on each of the circular front and back surfaces. Restricts bottom (shallow or thin) bottoms to be front-to-back Arranged Te, the same radius from the center of which was set to the thumb or other slightly larger radius of curvature R than the general value of the radius of curvature of the fingertip gripper surface of the finger, yet small disc body and in the human body Symmetrical shapes on the front and back surfaces of the part, familiar with the curved shape of the fingertips, and easy and reliable between the thumb and the other fingertip facing it, regardless of the orientation around the coin An annular recess for gripping that can be held by the outer periphery is formed, and a contour portion between the outer peripheral edge of each central raised surface and the inner peripheral edge of each annular recess, and an outer periphery of each annular recess and the inner peripheral edge of the rim portion Each of the portions has two planes that are adjacent to each other by securing an obtuse angle exceeding 90 ° with respect to each other in the thickness direction cross section passing through the center of the small disc body, or between planes or curved surfaces, or a combination of planes and curved surfaces. Live by crossing each other A coin characterized by being regulated and formed so as to have a smooth cross-sectional shape by a continuous surface finished to an R surface of a radius as appropriate so as not to have a shape corresponding to a ridge. A small disk body having a predetermined diameter, and the outer edge of each of the circular front and back surfaces continuous to the other circumferential side surface is formed with an arbitrary width portion on the rim portion restricted to the maximum wall thickness of the small disk body. In addition, at least a circular contour range that is concentric at the center of each small disk body on each of the circular front and back surfaces surrounded by the rim portion is left in a range that does not exceed the maximum wall thickness of the small disk body. The desired sign consisting of a pattern, a letter, or a combination thereof on the main surface area of the front and back surfaces including the central raised surface excluding the rims on the front and back surfaces is the maximum thickness of the small disk body. Each central raised surface is formed between the inner peripheral edge of the rim portion and the outer peripheral edge of the central raised surface on each of the circular front and back surfaces. Recesses that are intended to enclose the lowest of each recess (shallow or Those thin) bottom shaped portion with each other is arranged to restrict to match the front and back, and was set to the thumb or other slightly larger radius of curvature R than the general value of the radius of curvature of the fingertip gripper surface of the finger in the human body In addition, it has a symmetrical shape on the front and back surfaces of the part with the same radius from the center of the small disk body, and it is well adapted to the curved surface shape of the fingertip. Symmetry of the front and back surfaces so that the annular recess for gripping that can be easily and reliably held between the fingertips facing each other is arranged in a concentric arrangement from the center of the small circular body The outer peripheral edge of each central raised surface and the inner peripheral edge of each annular recess, and the outer peripheral edge of each annular recess and the inner peripheral edge of the rim part are respectively centered on the small disk body. 9 in the thickness direction cross section passing through R of the radius is appropriately set so as not to form a shape corresponding to a ridge generated by crossing each other by forming two surfaces by adjoining with each other by securing an obtuse angle exceeding °, and between surfaces or curved surfaces, or a combination of a plane and a curved surface. A coin characterized by being regulated and formed to have a smooth cross-sectional shape by a continuous surface finished to a surface.

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