Abstract:
A coin selector is provided with a decreased size as compared with prior art devices, which is also lighter. The selector, uses synthetic resin molded product componenets. The selector has a base element which has a shape such as a roughly square thick plate being stood up; a rail being arranged on this base element, for standing up and rolling a deposited coin; and a roller with a groove. The roller is freely rotatable arranged above this rail. The roller guides the upper edge of said rolling coin.

Description:
FIELD OF THE INVENTION 
     This invention relates generally to a coin selector for sorting out whether a deposited coin is genuine or not by rolling thereof. This invention more particularly relates to a rolling style coin selector which is used for game machines such as slot machine, pachinko-slot machines and other devices. The terminology “coin” used in this specification should be interpreted to include coins of a small disk shape including currency. The terminology “coin” should also be construed in this specification to include disk-like medals and tokens used in games, etc. 
     BACKGROUND OF THE INVENTION 
     Until now, rolling type coin selectors have been used for medal/awards game machines and pachinko-slot machines, etc. A rolling style coin selector is disclosed in Japanese Utility Model Application 4-23240 by the present applicant. The rolling coin selector which is described in Japanese Utility Model Application 4-23240 is laid-open to public inspection as Japanese Utility Model Disclosure 6-25963. This rolling coin selector is also disclosed in U.S. Pat. No. 5,293,981. 
     The rolling coin selector which is disclosed in Japanese Utility Model Application 4-23240 is summarily shown by a perspective view in FIG. 14A. A sectional view of this rolling coin selector is also shown in FIG.  14 B. In rolling coin selector which is shown in FIGS. 14A and 14B, the coin is deposited or inserted into an upper charge mouth  1 . The deposited coin rolls and falls on straight line rail  7 , which is formed at the lower edge of large frame  4 . When the coin A is genuine, the roll continues, being held between thin plate guide  10  and door board  5  (refer to FIG.  14 B). When the coin A is not genuine and has a small diameter, the coin A falls, dropping off of guide  10  or door board  5 . 
     When coin A is not genuine and has a large diameter, the coin A does not roll, being stopped by guide  10 , etc. In this case, when door board  5  is moved against a spring (not shown), arm  11  will also be moved, via existing hinge shaft  8 . Thus, the coin which is stopped by guide  10 , etc. falls. 
     A greatly improved rolling coin selector is disclosed in Japanese Patent Application 10-324355 by the present applicant. The rolling coin selector which is described in Japanese Patent Application 10-324355 is laid-open to public inspection as Japanese Patent Disclosure 2000-123217. The rolling style selector, which is disclosed in Japanese Patent Application 10-324355 is summarily shown on the front elevation view of attached FIG.  15 . FIG. 16 is a summary sectional view in which FIG. 15 is observed from the left side. The rolling coin selector which is disclosed in Japanese Patent Application 10-324355 is used in the condition shown in FIG.  16 . This rolling coin selector is used, by forming a rough section-V-shaped small groove  56  by means of paired rollers  53  and  55 . In this condition, coin C is inserted into upper part opening  21  of the selector. The inserted coin C is guided and rolled via circular arc way  22  (refer FIG.  15 ). Then, when this coin C, which is sorted out is genuine, circular arc way  22  will be passed through. That is, the lower edge of genuine coin C is guided by circular arc way  22 . Simultaneously, the upper edge of genuine coin C is guided by small groove  56  of paired rollers  53  and  55 . Therefore, when the coin C is a genuine coin, circular arc way  22  will be smoothly passed. 
     In this practical example, paired rollers  53  and  55  are freely rotatable. As a result of this, genuine coin C will smoothly and swiftly pass circular arc way  22 . When the coin which is put in opening  21  is not genuine, circular archway  22  win not be passed. For example, when the diameter of the deposited coin is small, circular arc way  22  will not be passed. That is to say, when the diameter of deposited coin is small, the coin falls, deviating from the above small groove  56 . However, when the small diameter coin vibrates, the apparent size of this coin increases and becomes like a genuine coin. In this case, spring  57  acts on this coin (refer FIG.  16 ). That is, spring  57  will absorb the vibration of the coin. As this result, the small diameter coin falls, coming off from paired rollers  53  and  55 . When the diameter of coin which is deposited in opening  21  is great, circular arc way  22  will also not be passed. For example, the upper edge of diameter-greater coin is struck to and stopped at rollers  53  and  55 . In this case, by opening and closing the door  31  around the above hinge shaft  32 , the coin, with the big diameter, falls. 
     SUMMARY AND OBJECTS OF THE INVENTION 
     The invention is based on the observation that the conventional rolling style coin selector was laterally big. The size generally was too great as to the conventional roll style coin selector. In addition, there was a problem that the conventional roll style coin selector was heavy, since most parts were metallic. 
     It is an object of the invention to solve the above-mentioned problems. 
     It is another object of the invention to decrease the size of whole selector and to provide a selector that is lighter on the whole. 
     According to the invention, a coin selector is provided including synthetic resin molded products. 
     Still another object of the invention is to provide simplified size change features with the change of the selection coin. 
     According to the invention, a coin rolling type selector is provided comprising a base element which has a shape such as a roughly square thick standing up plate, a rail arranged on this base element, and a roller with a groove. The roller is freely rotatable and arranged above this rail. The roller guides the upper edge of the rolling coin. 
     The rail is preferably a slender metal and is detachably fixed on the base element. The roller is preferably a resin molded product and is detachably fixed on said base element. 
    
    
     The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated. 
     BRIEF DESCRIPTION OF THE DRAWINGS 
     In the drawings: 
     FIG. 1 is a summary perspective view in which an embodiment according to this invention is diagonally observed from the upper front face; 
     FIG. 2 is a front elevation view of the embodiment of FIG. 1; 
     FIG. 3 is a summary perspective view in which the practical example of FIG. 1 is diagonally observed from the lower back; 
     FIG. 4 is a rear view of the embodiment of FIG. 1; 
     FIG. 5 is a summary perspective view showing the practical example of FIG. 1 with a part removed; 
     FIG. 6 is a front elevation view of the part of the embodiment of FIG. 5; 
     FIG. 7 is a sectional view of the embodiment of 5, observed from the top; 
     FIG. 8 is also a sectional view in which of the embodiment of FIG. 5 is observed from the top; 
     FIG. 9 is a front elevation view which summarily shows a second embodiment according to this invention; 
     FIG. 10 is a perspective view which shows of the embodiment of FIG. 9 with parts removed; 
     FIG. 11 is a front elevation view which summarily shows a third practical example according to the invention; 
     FIG. 12 is a summary sectional view in which FIG. 11 is observed from the little lower of right side; 
     FIG. 13A is perspective view showing a main section of the third practical example according to the invention; 
     FIG. 13B is a front elevation view showing a main section of the third practical example according to the invention; 
     FIG. 14A is a perspective view which shows a known coin selector example; 
     FIG. 14B is a sectional views which show the example of FIG. 14A; 
     FIG. 15 is a front elevation view showing another known coin selector; and 
     FIG. 16 is a summary sectional view showing the embodiment of FIG.  15 . 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to the drawings in particular, an embodiment according to this invention is shown of a roll style coin selector. The coin selector has a standing up shape of a flat box (refer FIG.  1 ). A generally pentagon-shaped cover body  50  is pivoted at  51  on the upper part of summarily square-shaped base element  20 . The cover body  50  is a hollow synthetic resin molded product. 
     FIG. 5 shows the cover body  50  removed. The coin is deposited through opening  21  which is formed at the upper corner of the selector. A guide piece  19  can be adjusted in proportion to the diameter of the coin is fixed near opening  21  by screw. The coin is deposited from opening  21  and is guided to an exit  24  by a rail  22  which is bent downward (refer FIG.  5 ). The coin which is put from the top corner of selector stands and rolls toward the bottom corner. When the rolling of the coin, which is deposited from the top corner of the selector is stopped, this coin falls at the nearest bottom corner. The coin, deposited through opening  21 , stops its rolling and falls into a cancel path  28  of the bottom. Slender metallic rail  22  is detachably fixed on base element  20  which is a resin molded product. A narrow groove is downwardly bent from the top corner to the farthest bottom corner of the base element  20 . The rail  22  is fitted to this groove, resisting the elastic force. On the base element  20  near opening  21 , a window  23  with a generally sector-shaped dent is opened (refer to FIG.  6 ). Near the lower edge part of this window  23 , a generally cruciform cancel body  25  is pivoted at  26  (refer to FIG.  3 ). A crescent moon piece  25 M which is a horizontal end part of the cancel body  25  is placed to open and close the window  23 . The cancel body  25  is made as a resin molded article for detaching and canceling the coin which is stuffed in the equipment. At the tip of the L-shaped upper end part  25 T of the cancel body  25 , a protrusion  25 P is formed (refer to FIG.  9 ). This protrusion  25 P is used as an operation piece for opening and closing the cover body  50 , resisting the spring. The upper end part  25 T of the cancel body  25  is almost inserted into an angle case  25 C with a groove on base element  20 . 
     At the base element  20 , which is the point position of sector-shaped window  23 , a metallic projected shaft  31  is fixed toward the cover body  50 . A generally L-formed cancel lever  27  is shown properly arranged at the upper part of FIG.  3 . The cancel lever  27  is made as a resin-molded article. This cancel lever  27  is freely rotatably mounted on the outside end of projected shaft  31 . When this cancel lever  27  is rotated around the projected shaft  31 , cancel body  25  is rotated at the center line of pivot shaft  26 . As a result of this, window  23  is opened and closed by the crescent moon piece  25 M of the cancel body  25 . On the inner end part of projected shaft  31 , a roller  32  formed as a resin mold article, is freely rotatable and detachably mounted. On the whole circumference at the outside end part of roller  32 , a groove  33 , which has a generally U-shape in cross section is formed (refer to FIG.  5 ). This groove  33  is for guiding the upper part of the circumference edge of the standing coin which rolls down the rail  22 . The outside top face of groove  33  is formed as a slope. The edge of coin would is due to be guided into the groove  33  of roller  32 . 
     As described above, cover body  50  is formed as a hollow resin-molded article with a generally pentagon shape. The upper part of cover body  50  is installed to be freely openable at the upper part of base element  20 , by means of pivot shaft  51  and spring. Further, a little small J-shaped pushing piece  53  is pivoted at  55  on the cover body  50 , at each upper part thereof (refer to the right side of FIG.  2 ). Pushing piece  53 , which is a resin molded article, is extended into cover body  50  in a freely swingable manner. This pushing piece  53  lightly presses the passing coin on the base element  20  to absorb the vibration of the coin. A small spring  56  is placed between cover body  50  and pushing piece  53  (refer to FIG.  2 ). On pivot shaft  55 , a s-shaped press piece  57  is freely swingably mounted. This press piece  57  is a resin-molded article and presses roller  32  to base element  20  lightly, by the protrusion  54  thereof. The roller  32  is accurately positioned by the protrusion  54  at the middle of press piece  57 . Therefore, a small spring  58  is placed between press piece  57  and cover body  50  (refer to FIG.  2 ). The long press piece  57  becomes free from the cover body  50  by means of this spring  58 . Even if cover body  50  is opened and closed upon canceling, etc., press piece  57  is resting. Thus, the coin is guided to the cancel road  28  by press piece  57 , even if cover body  50  is opened and closed. 
     A small spherical body  59  is stationed at the center inside of cover body  50  (refer to FIG.  2 ). This spherical body  59  is arranged so as to be freely aproachable to base element  20 . Spherical body  59  is used in order to adjust the width of the coin passage in proportion to the genuine coin thickness. A small rectangular body which is shown at the lower left on FIG. 3 is a solenoid  61 . On the plunger of solenoid  61 , a small elliptical link  62  is pivoted. Further, on this tip of link  62 , a vertical shaft  63  is pivoted. At the lower end of vertical shaft  63 , a generally F-shaped gate  65  is fixed. F-shaped gate  65  is a synthetic resin-molded product. The bottom base end of gate  65  is pivoted at  66  on base element  20  (refer to FIG.  4 ). This top tip  67  of gate  65  protrudes above the rail  22  freely (refer FIGS.  7  and  8 ). On the pivot shaft  26 , a generally bow-shaped sub gate  72  is also hinged (refer to FIG.  3 ). A small spring (not shown) is placed between sub gate  72  which is a resin molded article and the cancel body  25 . The center piece of F-shaped gate  65  comes to freely contact the base end part  71  of sub gate  72 . When solenoid  61  is energized on, the gate  65  is rotated around pivot shaft  66 , resisting the spring. As a result, the top tip  67  of gate  65  leaves the higher place of rail  22  (refer to FIG.  7 ). Simultaneously, the center piece of gate  65  contacts with the base end part  71  of sub gate  72 , and moves this sub gate (refer to the chain line of FIG.  7 ). Thus, the deposited coin will pass through rail  22  without stopping by gates  72  and  67 . That is to say, when solenoid  61  is energized on, the coin is rolling on rail  22  and guided to exit  24 . The coin which is guided to exit  24  is stored for example in the cash safe box (not shown). When solenoid  61  is not energized or off, the spring works and gate  65  is rotated around pivot shaft  66 . As a result, top tip  67  of gate  65  is located above the rail  22  (refer to FIG.  8 ). Simultaneously, center piece of gate  65  separates from base end  71  of sub gate  72 . Sub gate  72  becomes free and is located above rail  22 , by the action of spring (not shown). Thus, the coin which is deposited in opening  21  is guided to the cancel path  28 , by sub gate  72  (refer to FIG.  5 ). Therefore, top tip  67  of gate  65  is not damaged by the coin. When the deposited coin has passed the position of sub gate  72 , this is a case in which this coin is canceled. Even in this case, the coin is surely guided to cancel path  28 , by top tip  67  of gate  65 . That is to say, when the solenoid  61  is off, the genuine coin, which moves on rail  22 , is also stopped and falls. 
     Near the lower end of rail  22 , sensors S for counting coins are properly placed (refer to FIG.  6 ). These sensors S, for example, magnetically and optically detect the coin which passes the rail  22 . 
     A rolling style selector of this practical example, which includes the above-mentioned constituents, is generally used with the solenoid  61  being ON. That is to say, top tip  67  of gate  65  and sub gate  72  are removed from the higher place of rail  22 , and the selector is used (refer to FIG.  7 ). In this condition, when the coin is deposited into opening  21 , the coin stands up and rolls along rail  22 . If this standing and rolling coin is genuine, the coin passes through rails  22 . This now sorted-out coin has the lower edge of the rolling coin guided by rail  22  and the upper edge thereof is guided by groove  33  of roller  32  (refer to FIG.  5 ). In the case that coin is genuine, the coin passes rail  22  smoothly and further will roll downwardly. As the roller  32  freely rotates in this case, the genuine coin smoothly and swiftly passes the roller position. Each of springs  56  and  58  applies a weak resilient force (refer to FIG.  2 ). 
     In the case that the coin which is put into opening  21  is not genuine and has a small diameter, rail  22  is not passed. In this case, though the lower edge of the coin is guided by rail  22 , the upper edge thereof is not guided. Therefore, the small diameter coin deviates from rail  22 , and falls in cover body  50 , namely to the cancel path  28 . If the small coin vibrates (causing ad apparent diameter increase) and as the coin reacts like a genuine coin, this vibration is absorbed by spring  56 . With such a smaller coin diameter, the coin will be surely canceled, coming off from roller  32 . 
     In the case that the coin deposited into opening  21  is not genuine and has a large diameter, long rail  22  is not passed. Although the lower edge of large coin is guided by rail  22 , the upper edge of this coin hits roller  33 . As the diameter of the coin is great, the coin is blocked between rail  22  and roller  32  and does not roll. In this case, cancel body  25  is moved around pivot shaft  26 . The coin falls into the cancel path  28 . The crescent moon board  25 M is moved by the operation of cancel body  25 . Simultaneously, by means of operation piece  25 P, cover body  50  is opened and closed (refer to FIG.  11 ). The guide slope of groove  33  on roller  32  is the single unit in this practical example (it is of course possible to provide two guide slopes). On the whole circumference at the outside end part of roller  32 , the groove  33  is formed. The groove  33  is generally U-shaped in cross section (refer to FIG.  5 ). This groove  33  is for guiding the upper part of circumference edge of the standing coin, which rolls down the rail  22 . The groove  33  may advantageously be formed in a generally V-shape in cross section. The groove  33  may also be formed to be generally L-shaped in cross section. The outside top face of groove  33  may be sloped. The edge of coin is guided into the groove  33  of roller  32 . The number of guide slopes of groove  33  on roller  32  may be two. 
     When the coin to be selected is changed in this practical example, only roller  32  is changed. When the diameter of the coin to be selected is changed the replacement of roller  32  is all that is required. When the thickness of selection coin is changed the replacement of roller  32  is all that is required. Solenoid  61  is energized on in during such use and is not energized when trouble occurs. In which case, the coin is canceled, even if the coin which is put into opening  21  is genuine. 
     In FIG. 9 a front elevation view shows a second embodiment according to this invention. FIG. 10 shows a perspective view of the FIG. 9 embodiment, with some parts removed. Reference numbers in the drawings used in FIGS. 1 to  8  are again used to identify similar structure. 
     The second practical example is a generally fish-tail-shaped chute body  10 . This chute body  10  is a synthetic resin-molded product with a little elasticity, and is freely installed on the base element  20 . The chute body  10  is used in order to guide the coin which is discharged from the exit  24  of base element  20 , for desired position. Chute body  10  has a base plate portion  9  and a guide board portion  7  which is integral and which stands up from this base plate portion  9 . Slender base plate portion  9  is obliquely formed in order to be flushed to rail  22  at the exit  24  (refer to FIG.  9 ). A guide board portion  7  stands up integrally on one side of base plate portion  9 , and the lower end part thereof is bent. On the upper end part of guide board portion  7 , a pair of male portions  6  constitute coupler means. The male portions  6  are formed integrally of guide board portion  7 . 
     Each of male portions  6  has a pair of guide pieces  5  which roughly form a hollow triangular cone shape, respectively. Further, each male portion  6  has a small L-formed hook piece  3  between paired guide pieces  5 , respectively (refer to FIG.  10 ). These guide pieces  5  and hook pieces  3  respectively have elasticity. A pair of female portions which constitute the above-mentioned coupler means are formed near the exit  24  of base element  20 , respectively. Each female portion has a trapezoidal hole  12  for accepting paired guide pieces  5 , respectively. Each female portion has a pair of taper walls  13  for guiding a pair of inserted guide pieces  5 , respectively. In addition, each female portion has a stopper wall  15  for retaining male portion  6 . Thus, when chute body  10  is installed on base element  20 , each male portion  6  is inserted into each hole  12 , first of all. Concretely, paired guide pieces  5 , which are generally a hollow cone shape, are inserted into one of trapezoidal holes  12 , resisting the elasticity. Therefore, chute body  10  can be accurately installed on base element  20  without installation work at the inside and outside. 
     Next, pushing the chute body  10  to base element  20 , the tip of hook piece  3  is pressed and put into hole  12 . The chute body  10  is pushed and the tip of hook piece  3  is put into hole  12 , resisting the elasticity. When the tip of hook piece  3  is inserted into hole  12 , the whole of male portion  6  penetrates almost in hole  12 . Thus, the hook piece  3  which is passed through hole  12  is caught on stopper wall  15 , via the stabilizing force of the elasticity. That is to say, hook piece  3  is entangled on stoppers wall  15 , and chute body  10  is held tightly relative to the base element  20 . 
     When chute body  10  is detached from base element  20 , the tip of hook piece  3  is lowered by pressing resisting the elasticity. The tip of hook piece  3  is depressed to remove the chute body  10  from the stopper wall  15  as well as for inserting it into hole  12 . When the tip of hook piece  3  is put into hole  12 , male portion  6  is smoothly separated from the female portion. As this result, chute body  10  is detached from base element  20  (refer to FIG.  10 ). 
     FIG. 11 shows a third practical example by this invention. FIG. 12 generally shows the sectional view of the FIG. 11 embodiment with FIG. 13 showing the main section. Reference numbers in the drawings used in FIGS. 1 to  10  are again used to identify similar structure. 
     The third practical example uses a prism element with generally roof shape (refer to FIG.  13 ). This prism element is a transparent synthetic resin molded product and has a mounting board portion P 0  which is a rectangle thin plate. At an end part of mounting board portion P 0  a generally right-angled-triangle shape is formed integrally. This has a primary reflection portion P 1  at an end face. Further, on the tip edge of primary reflection portion P 1 , a second reflection portion P 2  is formed integrally. The end face of this becomes a generally right-angled-triangle. In other words, the roof-shaped second reflection portion P 2  is located above the center part of rectangular mounting board portion P 0 . The roof-shaped second reflection portion P 2  is located on mounting board portion P 0 , exteding a distance PS. The prism mounting board portion P 0  is installed on a substrate body CB for electronic circuits, resisting the elastic force (refer to FIG.  16 ). Substrate body CB exposes three light emitters LE and three photo-detectors R 1 , R 2  and R 3  on the surface thereof. These three light emitters LE radiate lights to primary reflection portion P 1 , respectively. The light which each light emitter radiates is, first of all, reflected by primary reflection portion P 1 , respectively. The light which is reflected by primary reflection portion P 1  is again reflected at second reflection portion P 2 . The light which is reflected by second reflection portion P 2  passes through the path PS. Such light that is passed through the path PS is detected at photo-detectors R 1  and R 2  and R 3 . The substrate body CB with prism is installed on base element  20  near roller  32 , resisting the elastic force (refer to FIG.  11 ). When a standing up genuine coin rolls from the upper part of rail  22 , the upper edge thereof will pass through the path PS. When the genuine coin passes the path PS, the coin passes through two photo-detectors R 1  and R 2  for coin counting. The third photo-detector R 3  is used for prevention of tampering by mischief, etc. For example, when this third photo-detector R 3  detects something, the equipment (not shown) on which this selector is installed is stopped. A long Z-shaped member which is shown under the substrate body CB with a prism is a metal plate MT for preventing tampering. This metal plate MT is fixed so that the upper end thereof may form the prism path PS (refer to FIG.  12 ). When cover body  50  is opened during cancel situations, etc., the metal plate MT prevents spacing near the path PS. In other words, by installing the metal piece MT, photo-detectors R 1  and R 2  for coin counting are not tampered with from outside the arrangement. 
     As described above, this invention can miniaturize the size of a whole selector by combining simple constituents. This invention provides for a lightening of the whole selector, by combining simple constituents. Also, in accordance with this invention, the size of a selected coin can be easily changed, only by changing the roller for a coin guide. Further, in accordance with this invention, the rail is freely detached so that the rail can be easily changed, such as if dirt is present. 
     While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.