Abstract:
A vending machine including a housing with one or more assembly units and one or more stacking shafts positioned in the housing. The assembly unit include a plurality of product dispensing coils for stacking and dispensing product horizontally. The stacking shaft stacking and dispensing products vertically, especially beverage containers. A support structure extends over a horizontal width of the housing and supports the assembly units and the stacking shafts in horizontally adjacent positions.

Description:
FIELD OF THE INVENTION 
     The present invention pertains to a vending machine with horizontal product dispensing coils for product packages and a means for dispensing stacked products, especially beverage containers. 
     BACKGROUND OF THE INVENTION 
     It has been known that product dispensing coils rotatable around horizontal axes are provided for dispensing product packages, e.g., candies or other snacks. The product packages are located individually between turns of the dispensing coil on a horizontal tray. The product packages are dispensed by the stepped rotation of the coils. Such a means is for example described in the older patent application No. 196 31 931. The dispensing coils are not very suitable for dispensing bottles or cans. 
     Vertical stacking shafts are usually provided in vending machines for bottles or cans, because this leads to a high storage capacity. Such product shafts are described in, e.g., DE 29 16 694 C2, DE 36 08 942 A1, and the older patent applications 196 06 056 and 196 14 915, especially concerning the dispensing mechanism. Because of the different shapes of the stacking shafts, on the one hand, and of the dispensing coils, on the other hand, separate vending machines are usually set up for bottles or cans, on the one hand, and for &#34;snacks,&#34; e.g., candies, on the other hand. 
     A vending machine from which product packages (snacks) and beverage bottles or cans can be sold is desirable. 
     A vending machine from which product packages and cans can be sold has been commercially available. The area in which product packages that can be dispensed via dispensing coils and the area in which cans are accommodated are horizontally separated in this vending machine; the areas are consequently located one on top of another. This is unfavorable, because the area accommodating the cans is lower as a result than the product-accommodating height of the vending machine. This leads to a low storage capacity for cans, because the advantage of the prior-art stacking shafts cannot be utilized. It is also unfavorable that a changeover of the vending machine from the dispensing of more product packages to be dispensed via dispensing coils to fewer cans and vice versa is difficult and requires a considerable amount of work for conversion and a large number of new components. Consequently, there is no variability in practice in the splitting of the product storage space of the vending machine between product packages, on the one hand, and cans, on the other hand. 
     SUMMARY AND OBJECTS OF THE INVENTION 
     The primary object of the present invention is to propose a vending machine of the type described in the introduction, whose area assigned for receiving stackable products, especially bottles or cans, is utilized at a high storage capacity and in which the splitting into an area for receiving stackable products, especially bottles or cans, and an area for product packages that can be dispensed by means of horizontal dispensing coils, is variable in a simple manner in terms of construction and assembly. 
     The above object is accomplished according to the present invention by the vending machine including a housing with one or more assembly units and one or more stacking shafts positioned in the housing. The assembly unit including a plurality of product dispensing coils for stacking and dispensing product horizontally. The stacking shaft stacking and dispensing products vertically, especially beverage containers. A support means extends over a horizontal width of the housing and supports the assembly units and the stacking shafts in horizontally adjacent positions. 
     Depending on the desired pattern of filling, more or fewer assembly units carrying horizontal product dispensing coils, and fewer or more stacking shafts for bottles or cans can be arranged next to each other on the support means. This is easy in terms of construction and assembly, because only stacking shafts and assembly units having dispensing coils must be replaced at the holding means when changing the type of filling of the vending machine, aside from the necessary electrical connections between the drive units of the dispensing coils and of the dispensing mechanisms of the stacking shafts. The entire product dispensing height of the vending machine is available for the assembly units and the stacking shafts, so that prior-art stacking shafts having a high storage capacity for bottles or cans or other stackable products, e.g., cigarette packs or books, can be used. The assembly unit or assembly units, which may extend essentially over the entire product storage height of the vending machine, is/are located next to the stacking shaft or next to the stacking shafts, so that a high product storage capacity is obtained, on the whole, which is also supported by the fact that the product storage width of the vending machine is also utilized. Two or more product dispensing coils may also be arranged next to each other in the assembly unit or assembly units. 
     Concerning the number of dispensing coils located next to each other, the manufacturer of the vending machine offers the operator of the vending machine different assembly units and stacking shafts, so that the operator can select the desired combination of assembly units carrying the dispensing coils and the stacking shafts. 
    
    
     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 front view of the vending machine with the door closed; 
     FIG. 2 is a front view with the door open; 
     FIG. 3 is a partial sectional side view; 
     FIG. 4 is a side view in the direction of arrow IV according to FIG. 2; 
     FIG. 5 is a side view in the direction of arrow V according to FIG. 2; 
     FIG. 6 and FIG. 7 are detail views of the support means; 
     FIGS. 8 and 9 are top views of different embodiment variations of the vending machine; 
     FIG. 10 is a front view of another embodiment; 
     FIG. 11 is a top view of the embodiment according to FIG. 10; 
     FIG. 12 is a front view of an assembly unit carrying a dispensing coil; and 
     FIG. 13 is a perspective view of the assembly unit according to FIG. 12. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to the drawings, one or more assembly units 2 and one or more stacking shafts 3 are installed horizontally next to each other in a housing 1 of the vending machine. Both the assembly units 2 and the stacking shafts 3 extend essentially over the entire product storage height H of the interior product storage space or area of the vending machine. 
     Each assembly unit 2 carries a plurality of product dispensing coils 4, seven in the case of this example, one on top of another, for product packages S of snacks located on trays 5. The dispensing coils 4 are shown in FIGS. 1 and 3, and the product packages S are shown in FIG. 2. 
     Each coil 4 is rotatable stepwise around its horizontal axis 4&#39; by means of a drive unit 6, wherein the product packages S are moved horizontally in the direction of a drop shaft 7, in which they fall into a dispensing compartment 8 of the vending machine. 
     Three dispensing coils 4 are provided next to each other in the case of the assembly unit 2&#39; see FIGS. 2 and 9. Two dispensing coils 4 are provided in the case of the assembly unit 2&#34; see FIGS. 2 and 9. 
     Each assembly unit 2 has two side walls 9, which are provided with a vertical plurality of slotted holes 10. Guide plates 11, which carry the corresponding coil assembly units 12, are inserted into these and are variable in height. Each coil assembly unit 12 has the corresponding dispensing coils 4 located next to each other, their drive unit 6, and the tray 5. The corresponding coil assembly unit 12 can be pulled out horizontally at the guide plates 11 for filling by a sliding means and is tiltable in its pulled-out position. This is shown in FIG. 13 for the upper coil assembly unit 12. An electric plug-and-socket connection 13 of the drive units 6 is disconnected during the pulling out. The plug-and-socket connection 13 closes during the pushing in see FIG. 13, bottom. The coil assembly units arranged between the upper and lower coil assembly units are not shown in FIGS. 12 and 13 for simplification of the representation. Due to the plurality of slotted holes 10, it is possible to suspend the guide plates 11 of the coil assembly units 12 in the side walls 9 corresponding to the height of the corresponding product packages S. 
     Straps 15, which guide cooling air to the product packages from a cooling unit arranged in a space 16 of the vending machine, are bent out at a rear wall 14 of the assembly unit 2. 
     Each stacking shaft 3 for bottles or cans F has two connected side walls 17. A prior-art rocker 18 driven by an electric motor is arranged at the bottom at each stacking shaft 3 for dispensing the bottles or cans. One or two pairs of bottles or cans are to be accommodated offset in the stacking shaft 3, as is also known per se. It is also possible to provide the stacking shafts for other stackable products, e.g., cigarette packs or books. 
     A sliding surface 19 extends obliquely to the rear and upward from the dispensing compartment 8 such that bottles or cans dispensed slide into the dispensing compartment 8 see FIG. 3. The stacking shafts 3 may have different widths, depending on the diameter of the bottles or cans see FIGS. 2 and 8. 
     A support means 20 for the assembly units 2 and the stacking shafts 3 is arranged in the housing 1 of the vending machine. This has a horizontal cross member 21, which extends essentially over the width of the vending machine. The cross member 21 consists of a square profile, which is composed of two U sections in the case of the example see FIG. 7. The cross member 21 is arranged under the assembly units 2 and the stacking shafts 3 in their front areas and above the dispensing compartment 8. It is used to support the weight of the assembly units 2 and of the stacking shafts 3. To secure these against sliding in the forward or rearward direction at the cross member 21 at right angles to the horizontal longitudinal direction width of the vending machine, U-shaped elbows 23, which can be placed on the cross member 21, are fastened to the assembly units 2. Identical elbows 24 are fastened to the stacking shafts 3 for the same reason. The assembly units and the stacking shafts can be displaced on the cross member 21 in the longitudinal direction of the said cross member. 
     Besides the cross member 21, the support means 20 has a bracket 25, which is provided at the top, especially in the top rear area, at the assembly units 2 and the stacking shafts 3. According to FIG. 6, the bracket 25 is a Z-shaped, horizontally continuous rail 26, which is fastened to the rear wall 1&#39; of the housing 1 and at which the assembly units 2 and the stacking shafts 3 can be fastened by means of fastening elements 27, so that the assembly units 2 and the stacking shafts 3 cannot tilt forward unintentionally. In the embodiment according to FIGS. 10 and 11, the rail 26 extends only in the area of the stacking shaft 3. The assembly unit 2 is fastened to the housing 1 at the top with elbows 28. 
     The assembly units 2, 2&#39;, 2&#34; and the stacking shafts 3 may be inserted into the vending machine in different combinations, depending on the desire of the operator of the vending machine. The operator selects the desired combination of assembly units 2 and stacking shafts 3 and places the assembly units 2 and the stacking shafts 3 on the cross member 21, establishes the connection to the bracket 25, and establishes the necessary electrical connections of the drive units 6, 18. 
     FIGS. 1, 2, 8 through 11 show different outfit variants. According to FIG. 1, a single assembly unit 2 carrying product dispensing coils 4, which has three dispensing coils 4 next to each other, and five stacking shafts 3 for different beverages are provided. In the embodiment according to FIG. 8 there is provided, one assembly unit 2 which carries seven dispensing coils 4 one on top of another in a column and with two columns of these dispensing coils 4 positioned next to each other in pairs, and six stacking shafts 3, two of which are narrower than the others. 
     In the variant according to FIG. 9, two assembly units 2&#39;, 2&#34; are provided next to each other, and the two assembly units are of equal height, but two dispensing coils 4 are provided next to each other in one assembly unit and three dispensing coils 4 are provided next to each other in the other assembly unit, and five narrow stacking shafts 3 are installed. 
     A single assembly unit 2 with 10 product dispensing coils 4 located next to each other and a single stacking shaft 3 are provided in the variant according to FIGS. 10 and 11. This stacking shaft 3 is located behind an operating and control means 29 of the vending machine. The operating and control means is fastened to the door 30 of the vending machine. This arrangement is possible because sufficient space is available for accommodating a stacking shaft 3 behind the operating and control means 29 in the housing 1. This space cannot be equipped with dispensing coils 4, because these coils should be visible through a glass front panel 31 of the door 30. However visibility is unnecessary for the stacking shafts 3. 
     Instead of the stacking shaft 3, it is also possible to insert a shelf compartment, which is used to store more &#34;snacks,&#34; for which there was no more space in the dispensing coils during filling. 
     Only one coil assembly unit 12 of the assembly unit 2 is shown in FIGS. 10 and 11 for simplification of the representation. Slots, into which partitions extending between the coils 4 may be inserted when needed, are shown at the tray 5 between the dispensing coils 4. 
     The operating and control means 29, has, in the usual manner, on the user side, a coin slot 32, a display means 33, selection keys 34, sorting signs 35, a closing flap 36 for the door 30, a coin return 37, and a &#34;Point of Sale (POS) window&#34; 39 for receiving customer/product information, as shown in FIG. 1. The customer selects the desired product by means of the selection keys 34. In case of a corresponding credit, the operating and control means 29 energizes the corresponding drive unit 6 or the corresponding rocker 18, so that the desired product will arrive at the product dispensing compartment. 
     It is indicated in FIG. 1 that the glass front panel 31 of the door 30 is transparent at the assembly unit 2 only. The glass front panel 31 is covered in the area of the stacking shafts 3, and the cover 38 symbolically represents the bottled or canned beverages being stored in the stacking shafts 3 or it carries advertising posters and is backlit. This is favorable, because transparency of the glass front panel 31 in the area of the stacking shafts 3 would only show the bottle or can bottoms which are unidentifiable by a user. Instead of the cover, it is also possible to use a shelf system, which is used to hold and display the original bottles or cans. These bottles or cans are then visible to the customer from the outside. 
     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.