VENDING MACHINE FOR DISPENSING REFRIGERATED AND UNREFRIGERATED FOODS

Abstract: A vending machine (1) for dispensing refrigerated and unrefrigerated foods. The vending machine includes a housing having a refrigerated storage and dispensing area (7) for the refrigerated foods separate from an unrefrigerated storage and dispensing area (5) for the unrefrigerated foods. The vending machine also includes a device (22l) contained in the housing for cooling the refrigerated foods in the refriger­ ated storage and dispensing area. The vending machine also includes a common receiving device (18) adjacent the refriger­ ated and unrefrigerated storage and dispensing areas for receiving dispensed foods from either area. The vending machine further includes a device (9) for selecting one of the refrigerated foods or unrefrigerated foods to be dispensed to the common receiving device and a device responsive to the selecting device for dispensing the selected food to the common receiving device.

Description: This invention relates to a vending machine for dispensing both refrigerated foods, for example drink containers, and unrefrigerated foods such as packaged snacks. It is generally known that vending machines can provide a refrigerated section to keep products cold. For example, food vending machines are known for dispensing sandwiches or cold drinks by inserting coils or bills. It is also known to provide vending machines which dispense products which are not refrigerated. For example, candy or snack food packages are generally kept in a non-refrigerated vending machine. Very often, it is desired to have both unrefrigerated and refrigerated foods dispensed at the same physical location, such as in an employee kitchen. However, it is impractical due to space limitations to use both a refrigerated vending machine and an unrefrigerated vending machine. Some presently available vending machines have refrigerated and unrefrigerated sections or areas, but require all the dispensed products to pass through both the refrigerated and unrefrigerated sections prior to dispensing. For example, as shown in US-A-3 160 255, food products are kept in a refrigerated compartment and then passed to a heated location before dispensing, and as shown in US-A-2 963 883 ice cream is kept in a storage freezing compartment before being dispensed by passage through a second compartment maintained at a temperature slightly above freezing. In these vending machines, it is not possible to independently or separately dispense the product from the refrigerated as well as from the unrefrigerated sections. Very often, the use of the non-refrigerated vending machine results in the candy or the like being destroyed because of melting, thus resulting in customer dissatisfaction or loss of the product. Because many unrefrigerated foods are most palatable at a temperature most near room temperature, it is generally not desirable to refrigerate this product down to a temperature for which unrefrigerated foods are enjoyed. Therefore, it is undesirable, for example, to place candy or the like in a refrigerated machine since these machines typically cool to around 2-7°C (35-45°F). Among the several objects of the invention may be noted the provision of a vending machine permitting the dispensing of refrigerated product and unrefrigerated product from a single machine; the provision of such vending machine which is suitable for locations having space limitations; the provision of such vending machine which permits the independent and separate dispensing of refrigerated and unrefrigerated product; the provision of such vending machine which partially cools product in the unrefrigerated section of the vending machine; the provision of such vending machine which has a single selection control for choosing refrigerated and/or unrefrigerated product; and the provision of such vending machine which is economically feasible and commercially practical. The prior art portion of claim 1 is based upon the above-mentioned US-A-3 160 255. As compared therewith, the present invention, as defined in claim 1, provides a vending machine for the selective dispensing of refrigerated and unrefrigerated foods and which includes a housing having a refrigerated storage and dispensing area for the refrigerated foods separate from and unrefrigerated storage and dispensing area for the unrefrigerated foods. A common receiving device adjacent the refrigerated and unrefrigerated storage and dispensing ares is adapted to receive dispensed foods from either area. The vending machine further includes a device for selecting one of the refrigerated foods or unrefrigerated foods to be dispensed to the common receiving device and a device responsive to the selecting device for dispensing the selected food to the common receiving device. Other objects and features will be in part apparent and in part pointed out hereinafter. Brief Description of the Drawings Fig. l is a front view of the vending machine of the present invention; Fig. 2 is a perspective view of the vending machine of Fig. l with a front door opened; Fig. 3 is a side view of the vending machine in Fig. l with a portion cutaway showing an interior cross-section; Fig. 4 is a close up view of a refrigerated area of the vending machine in Fig. l with a portion cutaway; Fig. 5 is a side view of a drink can dispenser of the vending machine in Fig. l; Fig. 5A is a side view of the drink can dispenser in Fig. 5 showing a can being dispensed; Fig. 6 is a view from the line 6-6 in Fig. 5; and Fig. 7 is a close-up view of a refrigeration unit included in Fig. 3. Corresponding reference characters indicate cor responding parts throughout the several views of the drawings. Description of a Preferred Embodiment In Fig. l the vending machine l of the present invention has a door 3 having a clear see-thru panel for displaying foods in the vending machine. Unrefrigerated foods, such as candy or food packages, are displayed in the vending machine l in an upper section or unrefrigerated food storage and dispensing area 5. Analogously, refrigerated foods, such as drink containers or cans, are diplayed in a lower section or refrigerated food storage and dispensing area 7. A selection panel 9 has a plurality of push button switches ll corresponding to a respective dispenser in the unrefrigerated or refrigerated storage and dispensing areas 5 and 7. The selection panel 9 includes a vendor control and selection system as described in U.S.-A-4,5l2,453. Money is inserted in the selection panel 9 and when a proper amount is inserted, push button switches ll may be operated. In response to the pushed switch ll, refrigerated or unrefrigerated foods are dispensed to a common receiving device or curved shelf l8 which is accessible through an opening l7 in the door 3. As may best be seen in Figs. 2, 3 and 4, the door 3 is mounted on an exterior housing l5 and may be opened for access to the vending machine interior which includes both the unrefrigerated and refrigerated storage and dispensing areas 5 and 7. The housing l5 thus constitutes housing means having a refrigerated storage and dispensing area for the refrigerated foods separate from an unrefrigerated storage and dispensing area for the unrefrigerated foods. The unrefrigerated storage and dispensing area 5 has four shelves l9a, l9b, l9c and l9d. Each of the shelves l9 has separators 23 between spiral arms 25 in which the unrefrigerated foods such as candy bars or snack food packages are placed. The spiral arms 25 are rotated by motors (not shown) in response to a machine controller as shown in Fig. l of U.S.-A-4,5l2,453 for dispensing the unrefrigerated foods. A dispenser having spiral arms for dispensing food packages is shown in U.S.-A-3,986,759. The refrigerated storage and dispensing area 7 has a clear continuous door 27 masked so that four windows 29a, 29b, 29c and 29d are outlined for displaying the drink can to be next dispensed from one of four corresponding dispensers 3la, 3lb, 3lc and 3ld. For illustration purposes the dispenser 3lb is shown in Fig. 3. As will be appreciated from the discussion there are four dispensers 3l. Labels 33a, 33b, 33c and 33d may be mounted below the corresponding window 29 for displaying such things as price and item number for the corresponding switch on the selection panel 9. Additional track labelling 35 may also be attached above the windows 29 to further identify the refrigerated foods e.g. brand names. A door 37 is mounted above the labelling 35 and may also have labels attached thereto. Another door 39 is mounted below the windows 29 and provides access to a refrigerated storage area 4l. As may best be seen in Figs. 3, 4 and 5, the door 37 is attached to a generally rectangularly shaped housing 48 for enclosing the storage and dispensing area 7. The door 37 is mounted on a strip hinge 47 with spring 46 which tends to keep the door 37 in a vertical or closed position. The spring 46 is an example of spring means tending to keep the door closed. Door 37 consists of two pieces of material, an outside piece 49 and an inside piece 5l with an air insulating space therebetween. The door 37 tends to be pressed against gaskets 53 and 55 by the spring 46 to seal the storage and dispensing area 7. Each of the dispensers 3l has a corresponding opening 6l in the housing 48 behind the door 37. For example, as shown in Fig. 5, dispenser 3lb has an opening 6lb for the insertion of the drink cans into the dispenser 3lb. The housing 48 includes rear panel 63, top panel 65 and bottom panel 67. The top panel 65 and bottom panel 67 are secured to side panels 7l and 73 and rear panel 63. The housing 48 also includes a front frame 66 which incorporates a top cross member 8l, a bottom cross member 9l and a center cross member l05. A sealing gasket 85 seals between the front frame 66 and the top panel 65, bottom panel 67 and side panels 7l and 73. Additional support is provided by overlapping corner piece 97. Pieces of insulating material 98 and l00 are used for insulation around the housing 48. The center cross member l05 which extends from side panel 7l to side panel 73 has the strip hinge 47 for door 37 mounted thereto and the labelling 35 is also attached to the cross member l05. The clear door 27 is con structed similarly to door 37 and includes outside piece l07 and inside piece l09 with an air space therebetween for insulation. A strip hinge ll5 is attached to the center cross member l05 and door 27 to permit the door to swing outward. A spring ll9 tends to press the door 27 toward door gaskets l2l and l23 to seal the storage and dispensing area 7. Center cross member l05 includes a C-shaped portion l25 to which is attached channel or mounting bracket l3l by rivets l33 and l35. For illustration purposes the dispenser 3lb is shown in Figs. 3, 5, 5A and 6. As will be readily appreciated the discussion which follows applies to all dispensers 3l. For each dispenser 3l an angle bracket l37 is attached to mounting bracket l3l by rivets or screws l4l and l43. Also for each dispenser 3l a cover piece l45 is attached to the mounting bracket l3l. The bracket l37 has a circular opening l5l through which a rotating member l53 of a gear assembly l55 protrudes. The gear assembly l55 is secured to the bracket l37 by screws (not shown) and is driven by a motor l6l with control and powering wires (not shown) passing through an opening l62 in bracket l3l (as shown in Fig. 6). These wires connect to the machine controller as shown in Fig. l of U.S.-A-4,5l2,453. The rotating member l53 has a square drive l63 which is attached to an offset lever l65. A pivoting arm l67 is pivotally attached at end l7l and at an opposite end l73. Mounting bracket l3l includes for each dispenser 3l hinge supports l8l and l8l′ which support pivot pins l83 therebetween. Each dispenser 3l has a levered gate l85 which is pivotally attached to one of the pins l83. The levered gate l85 has a clear ejector flap portion l87 attached by rivets l86 to an angle l88. The levered gate l85 also includes a retainer portion l89 which is continuous with the angle l88 and perpendicular to the flap portion l87. The retainer portion l89 includes a lip l9l and pie shaped segments l93 and l93′ at either end. The pivoting arm l67 is pivotally attached to the levered gate l85 at the end l73. Each of the four dispensers 3l has sides 20l and 203 having openings 205, 207 and 209 to permit air circulation. Additionally, each dispenser 3l has a top 202 and a bottom 204 mounted inside respectively the top panel 65 and bottom panel 67. A piece of insulating material l02 is placed between the bottom panel 67 and bottom 204. At tached to each of sides 20l and 203 is a rearward sloping guide 2ll which extends from near the door 37 to near the rear panel 63 (Figs. 3, 4, 5 and 6). A guide and duct 2l3 is secured to the sides 20l and 203 and to the bottom panel 67 near the rear panel 63. A frontward sloping guide 2l5 is attached to each of sides 20l and 203 and extends from near the rear panel 63 to near the door 27. As may best be seen in Figs. 3 and 7 a selfcontained refrigeration unit and housing 22l is mounted adjacent the housing 48 for the refrigerated food storage and dispensing area 7. The refrigeration unit 22l includes a compressor 223 and condensor coils 225. Cooling or evaporator coils 227 of the refrigeration unit 22l are in an insulated area. There are two openings 23l and 233 formed in a single foam plastic member 24l and matching holes through a top portion 239 of the refrigerator unit and housing 22l. These two openings 23l and 233 in the refrigeration unit 22l match openings 235 and 237 in the bottom panel 67 and the piece of insulating material l02. The foam plastic member 24l is thus used to form passageways between the housing 22l and the housing 48. Additional passageways 245 and 247 are found on either side of the cooling coils 227. A motor driven fan (not shown) forces air over the cooling coils 227 and out the opening 23l into the refrigerated storage and dispensing area 7. The air supplied to the refrigerated storage and dispensing area 7 is sufficient to cool the temperature to around 1°C (34°F). Cool air also passes into refrigerated area 4l through an opening (not shown) in passageway 247. Air is supplied to the fan from a top area l0l of the refrigerated area 7, between the duct 2l3 and the rear panel 63 and into the openings 237 and 233. The cooling air thus circulates through the refrigerated area 7 by passing through passageway 247, out the opening 23l, into the housing 48, returned from area l0l, back through opening 233 and into passageway 245. The refrigerator unit 22l thus constitutes means contained in the housing l5 for cooling the refrigerated foods in the refrigerated storage and dispensing area. In this way housing 48 includes housing means for enclosing only the refrigerated storage and dispensing area to contain the cooling. The opening 23l is thus an example of duct means for directing cooling air into the housing 48 through the opening 235. The operation and use of the vending machine l will now be described. With the door 3 open as shown in Fig. 2 the unrefrigerated foods may be placed between the spiral arms 25 in the unrefrigerated food storage and dispensing area 5. Because the door 3 is clear, different types of these foods may be mixed on each spriral arm. The refrigerated food may be conveniently stored in the refrigerated storage 4l for cooling prior to insertion in the dispensers 3l. For example, previously stored drink cans may be accessed through the door 39. The door 39 seals the refrigerated storage area 4l with a gasket 248 and opens by pulling downward on handle 249 thus pivoting the door 39 at hinge 25l. These precooled cans may then be conveniently inserted from the front into the dispensers 3l by opening the door 37. Cans are placed in the openings 6l and will move down on the guides 2ll and 2l5. The can nearest the flap portion l87 of levered gate l85 , i.e. can 26l, will then be visible through the windows 29 and the clear flap portion l87. Because the can 26l is easily visible, different types of cans may be mixed in one of the dispensers 3l. The door 3 may then be closed and the vending machine l is ready for dispensing. With the door 3 closed cool air escaping from the refrigerated storage and dispensing area 7 will reduce the temperature in the adjacent unrefrigerated storage and dispensing area 5. Money is inserted into the selection panel 9 and when the proper amount is inserted, the push-button switches ll on the panel 9 will permit dispensing. The user may conveniently select the food for dispensing since both the unrefrigerated foods in the unrefrigerated food storage and dispensing area 5 and the refrigerated foods in the refrigerated food storage and dispensing area 7 are visible through door 3. The refrigerated food, e.g. the can nearest the flap portion l87, i.e., can 26l, may be identified through window 29 and clear flap portion l87. As previously discussed the vendor control and selection system described in U.S.-A-4,5l2,453 is used for controlling dispenser motors for both the refrigerated and unrefrigerated foods. The selection panel 9 thus consti tutes means for selecting one of the refrigerated foods or unrefrigerated foods to be dispensed to the common receiving device l8. If an unrefrigerated food is selected for dispensing the motor connected to one of the spiral arms 25 will respond by rotating thus forcing the food to be pushed off the shelf l9. The unrefrigerated food package will then fall into the common receiving device or shelf l8 for retreival by the user. If a refrigerated food e.g. a drink can is selected for dispensing, one of the motors l6l associated with the selected dispenser will begin rotating. The dispenser 3l starts in a closed position as shown in Fig. 5. This rotation (in the clockwise direction as shown in Figs. 5 and 5A) causes the rotating member l53 of the gear assembly l55 to turn the offset lever l65. The pivoting arm l67 will pivot at the end l7l and at the opposite end l73. The levered gate l85 will then pivot on the pin l83. The flap portion l87 will push against the inside l09 of door 27 causing the door 27 to open. The lip l9l of retaining portion l89 will proceed into a postion between the can nearest the flap portion l87 i.e., can 26l, and the can next nearest the flap portion l87 i.e., can 263. The pie-shaped segments l93 and l93′ at either end of the levered gate l85 will then retain the can 263 in the dispenser 3l. The rotation will continue and an open position will be reached as shown in Fig. 5A. The levered gate is thus movable between the closed position (Fig. 5) and the open position (Fig. 5A). In the open position the flap portion l87 has pushed the door 27 open so that the can 26l will then fall into the common receiving device l8 for retrieval by the user. The common receiving device l8 thus constitutes common receiving means adjacent the refrigerated and unrefrigerated storage and dispensing areas for receiving dispensed foods from either the refrigerated or unrefrigerated storage and dispensing area. And the dispensers 3l and the spiral arms 25 are an example of means responsive to the selecting means for dispensing the selected food to the common receiving means. The rotating member l53 will continue rotating through an entire revolution. Thus, after the open position in Fig. 5A is reached the levered gate l85 will move toward its closed position as shown in Fig. 5. As this rotation progresses the can 263 will eventually move to the position nearest the flap portion l87 when the lip l9l has risen to allow the can to clear it. The levered gate l85 returns to its closed position and all the cans remaining in the dispenser 3l will then move down the guides 2ll and 2l5. Because the guides 2ll and 2l5 extend from front to back, the number of cans that may be stored is increased. The vending machine l is ready for dispensing another refrigerated or unrefrigerated food.

Claims: A vending machine for dispensing foods comprising housing means (15) having a refrigerated storage area (7) for refrigerated foods separate from and below an unrefrigerated storage area (5) for unrefrigerated foods; means (221) contained in the housing means (15) for cooling the refrigerated foods in the refrigerated storage area; and dispensing means (25,31) for dispensing food to a receiving means (18), characterised in that the vending machine is capable of dispensing both refrigerated and unrefrigerated foods and comprises separate dispensing means (31) in the refrigerated area (7) and dispensing means (25) in the unrefrigerated area (5), common receiving means (18) adjacent the refrigerated storage and dispensing area (7) for receiving dispensed foods from either the refrigerated or the unrefrigerated storage and dispensing area; and means (11) for selecting one of the refrigerated foods or unrefrigerated foods to be dispensed to the common receiving means (18), the dispensing means (25,31) being responsive to the selecting means (11) for dispensing the selected food to the common receiving means (18). A vending machine as claimed in claim 1, further comprising another housing means (48) for enclosing only the refrigerated storage and dispensing area (7) to contain the cooling. A vending machine as claimed in claim 2, wherein the refrigerated storage and dispensing area (7) and unrefrigerated storage and dispensing area (5) are adjacent to reduce the temperature in the unrefrigerated storage and dispensing area (5) by heat transfer between the areas (5,7). A vending machine as claimed in claim 2 or 3, wherein said other housing means (48) has an opening for the insertion of the refrigerated foods into the refrigerated storage and dispensing area (7), a door (37) covers the opening, and spring means are provided to bias the door to a closed position. A vending machine as claimed in claim 4, wherein the other housing means (48) has another opening below the first named opening, said other opening being for dispensing the refrigerated foods from the refrigerated storage and dispensing area (7), another door (27) covering said other opening. A vending machine as claimed in claim 2, 3 4 or 5, wherein the other housing means (48) has a window (27) therein for viewing the one of the refrigerated foods to be dispensed to the common receiving means (18). A vending machine as claimed in any one of claims 2 to 6, wherein the other housing means (48) is positioned below the unrefrigerated storage and dispensing area (5). A vending machine as claimed in any one of claims 2 to 7, wherein the cooling means (221) supplies cool air through a cooling opening (231) into the other housing means (48) to cool the refrigerated storage area (7). A vending machine as claimed in claim 8, wherein the refrigerated storage and duct means (245,247) are includes for directing cooling air into the other housing means (48) through the opening (231). A vending machine as claimed in any preceding claim, wherein the means for dispensing the selected food comprises a plurality of dispensers (25) each for dispensing one of the unrefrigerated foods and a plurality of dispensers (31) each for dispensing one of the refrigerated foods. A vending machine as claimed in any preceding claim, wherein the means (31) for dispensing one of the unrefrigerated foods comprises a spiral arm (25) which separates the unrefrigerated foods in the storage and dispensing area (5) and a motor which operates in response to the selecting means (11) for rotating the spiral arm (25) to dispense one of the unrefrigerated foods. A vending machine as claimed in any preceding claim, wherein the means (31) for dispensing one of the refrigerated foods comprises a levered gate (185) movable between an open and a closed position when, when in the closed position, retains the refrigerated foods in the refrigerated food storage and dispensing area (7) and when in the open position permits one of the refrigerated foods to move to the common receiving means (18) and retain the refrigerated foods remaining in the refrigerated food storage and dispensing area (7), and a motor(161) which operated in response to the selecting means (11) to move the levered gate (185) from the closed position to the open position to dispense one of the refrigerated foods and then returns the gate to the closed position.

Inventors: FICKEN, LEONARD A
Applicants: UNIDYNAMICS CORPORATION
Application year: 1987
Main classification: G07F9
IPC codes: G07F11, F25D17, G07F9, F25D25, F25D23, F25D19