Vending machine

Abstract

To provide a vending machine capable of suppressing manufacturing cost while allowing easy modification of the layout of display articles.SOLUTION: A vending machine 1 includes: a plurality of operation targets 32 provided in correspondence with a plurality of display articles 7 accommodated in an accommodation space 15 between a main body 10 and a panel 13 attached to the main body 10, the plurality of operation targets 32 serving as targets of operation by a user 9 when the user selects a desired display article 7 from the plurality of display articles 7; and a plurality of detection units for detecting a change in a physical quantity generated in the panel 13 on the basis of an operation performed on a surface 130 of the panel 13 with respect to the operation target 32 of a desired display article 7.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vending machine. [Background technology]

[0002] As a prior art, a vending machine is known that has an exhibition section including a structure in which multiple product samples are arranged horizontally on the inside of the front panel of the front door, and multiple rows of product samples are arranged vertically at intervals, and selection instruction buttons for product selection that are installed on the front panel for each product sample between the rows of product samples (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-021697 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional vending machines, the selection instruction buttons are located on the outside of the front panel, which requires processing of the front panel, resulting in increased manufacturing costs and the inability to change the layout after processing.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vending machine that can reduce manufacturing costs and that allows for easy changes to the layout of display items. [Means for solving the problem]

[0006] One aspect of the present invention provides a vending machine that is provided with a plurality of operation targets that correspond to a plurality of display items stored in a storage space between a housing and a panel attached to the housing, and that serve as targets for a user's operation when selecting a desired display item from the plurality of display items, and a plurality of detection units that detect changes in physical quantities that occur on the panel based on operations performed on the surface of the panel toward the operation targets of the desired display item. [Effects of the Invention]

[0007] According to the present invention, it is possible to reduce manufacturing costs and easily change the layout of exhibit items. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating an example of a vending machine according to a first embodiment. [Figure 2] FIG. 2 is an example of a block diagram of the vending machine according to the first embodiment. [Figure 3] FIG. 3 is a diagram for explaining an example of selection of an exhibit item in the selection device according to the first embodiment. [Figure 4] FIG. 4(a) is a diagram for explaining an example of the arrangement of the first to fourth sensors of the vending machine according to the first embodiment, and FIG. 4(b) and FIG. 4(c) are diagrams showing examples of modified sensor arrangements. [Figure 5] FIG. 5 is a diagram for explaining an example of vibration propagating through a panel of the vending machine according to the first embodiment. [Figure 6] FIG. 6 is a graph showing an example of output values ​​detected by the first to fourth sensors of the vending machine according to the first embodiment. [Figure 7] FIG. 7 is a diagram illustrating an example of a vending machine according to the second embodiment. [Figure 8] FIG. 8 is a graph showing an example of output values ​​detected by the first sensor and the second sensor of the vending machine according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] (Summary of the embodiment) The vending machine of the embodiment is provided to correspond to a plurality of display items stored in a storage space between the housing and a panel attached to the housing, and is generally configured to include a plurality of operation targets that serve as targets for a user's operation when selecting a desired display item from the plurality of display items, and a plurality of detection units that detect changes in physical quantities that occur on the panel based on operations performed on the surface of the panel toward the operation targets of the desired display item.

[0010] This vending machine does not require processing of the panel, so compared to a case where the panel is processed and display items and buttons for selecting the display items are arranged, manufacturing costs can be reduced and the layout of the display items can be easily changed.

[0011] [First embodiment] (Vending machine 1 overview) FIG. 1 is a diagram illustrating an example of a vending machine according to the first embodiment. FIG. 2 is an example of a block diagram of the vending machine according to the first embodiment. FIG. 3 is a diagram illustrating an example of selection of an exhibit item by the selection device according to the first embodiment. FIG. 4(a) is a diagram illustrating an example of the arrangement of the first to fourth sensors of the vending machine according to the first embodiment, and FIGS. 4(b) and 4(c) are diagrams illustrating modified examples of sensor arrangement. FIG. 5 is a diagram illustrating an example of vibration propagating through the panel of the vending machine according to the first embodiment. FIG. 6 is a graph showing an example of output values ​​detected by the first to fourth sensors of the vending machine according to the first embodiment. In FIG. 3, a push operation is performed on the surface 130 of the panel 13, so the exhibit item 7 and other components are shown with dotted lines. In FIG. 6, the horizontal axis represents time t and the vertical axis represents the output value V. This output value V is, for example, a voltage, but is not limited to this. The graph in FIG. 6 is an example of the results of an experiment.

[0012] In the drawings relating to the embodiments described below, the ratios and shapes of the figures may differ from the actual ratios and shapes. In addition, in Figure 2, the flow of output values ​​V1 to V4 is indicated by arrows. An overview of the vending machine 1 will be described below.

[0013] (Vending machine 1 overview) The vending machine 1 includes, for example, a main body 10 that is a rectangular parallelepiped housing that is long in the vertical direction on the plane of the paper in Fig. 1. The main body 10 includes a box body 11 that opens to the front, and a door body 12 that closes an opening 110 of the box body 11.

[0014] Box 11 contains product 70 corresponding to display item 7. This product 70 is, for example, a beverage, but it may also be food, a toy, or other items, and is not limited to these. Door 12 has panel 13 disposed in recess 121 provided on front surface 120. Panel 13 is formed in the shape of a single plate from transparent acrylic resin, polycarbonate resin, or the like, so that display item 7 placed inside can be seen.

[0015] 1, the door body 12 has a banknote inlet / outlet 122, a coin slot 123, a return lever 124, an amount display 125, a change return slot 126, a product outlet 127, a door lock 128, and an advertising space 129 arranged on the front surface 120. Note that the banknote inlet / outlet 122, the coin slot 123, the return lever 124, and the change return slot 126 are not provided in a vending machine 1 that does not use banknotes or coins for cashless payment, for example. Therefore, by providing multiple display units 3, the vending machine 1 can make the panel 13 larger and allow for more flexible placement of display items 7.

[0016] The bill inlet / outlet 122 is where bills are inserted and ejected. The coin inlet 123 is where coins are inserted. The return lever 124 is a lever that is operated when bills and coins are returned. The amount display 125 is a display that indicates when there is no change and also displays the amounts of inserted bills and inserted coins. The change return outlet 126 is where change is returned. The product outlet 127 is where purchased products 70 are dispensed. The door lock 128 is operated to lock and unlock the door body 12. The advertising space 129 is a place where advertisements are displayed.

[0017] The door body 12 has a storage space 15 for storing a plurality of exhibit items 7. The door body 12 also has a back panel 14 that faces the panel 13 and is located at the bottom of the recess 121. The storage space 15 is a space formed between the panel 13 and the back panel 14. The back panel 14 is, for example, formed in a plate shape using a metal material.

[0018] As an example, the vending machine 1 is equipped with three display units 3 as shown in FIG. 1. As an example, but not limited to, twelve display items 7 are arranged in each of the display units 3. The display units 3 are attached to a rear panel 14. As an example, the vending machine 1 is roughly configured to mainly include a first sensor 21 to a fourth sensor 24, a memory unit 16, and a plurality of item dispensing units 17 as shown in FIG. 2.

[0019] Furthermore, the vending machine 1 includes a control unit 18 as a determination unit that determines the display item 7 selected by the user 9 based on the output values ​​V1 to V4 acquired from the first to fourth sensors 21 to .

[0020] The storage unit 16 is, for example, a semiconductor memory. The storage unit 16 stores determination information 160. The item dispensing unit 17 is configured to dispense, in exchange for payment, an item 70 corresponding to the display item 7 selected by the user to the item outlet 127.

[0021] The control unit 18 is a microcomputer including, for example, a CPU (Central Processing Unit) that performs calculations and processing on acquired data according to stored programs, and semiconductor memories such as RAM (Random Access Memory) and ROM (Read Only Memory). The ROM stores, for example, programs for operating the control unit 18. The RAM is used, for example, as a storage area for temporarily storing calculation results and the like.

[0022] The control unit 18 is configured to comprehensively control the vending machine 1. The control unit 18 is electrically connected to the first sensor 21 to the fourth sensor 24 and acquires output values ​​V1 to V4. The control unit 18 determines the display item 7 selected by the user based on the output values ​​V1 to V4 acquired from the first sensor 21 to the fourth sensor 24 and the determination information 160, and dispenses the item 70 to the item outlet 127.

[0023] 1 to 3, the vending machine 1 is provided corresponding to a plurality of exhibit articles 7 stored in a storage space 15 between the main body 10 and a panel 13 attached to the main body 10, and is generally configured to include a plurality of operation targets 32 that serve as operation targets for a user 9 when selecting a desired exhibit article 7 from the plurality of exhibit articles 7, and a plurality of detection units that detect changes in physical quantities occurring on the panel 13 based on operations performed on the surface 130 of the panel 13 toward the operation targets 32 of the desired exhibit article 7. The operation in this embodiment is a push operation in which the surface 130 of the panel 13 is pressed, but is not limited to this.

[0024] 1 and 4(a), the multiple detection units are arranged at at least two positions of the four vertices of panel 13: vertex 132a to vertex 132d, and upper side 133a, lower side 133b, left side 133c, and right side 133d connecting adjacent vertices. The multiple detection units in this embodiment are, for example, first sensor 21 to fourth sensor 24, but may be more in number to provide redundancy, and are not limited to these.

[0025] As an example, vertices 132a to 132d are the portions surrounded by dotted lines in FIG. 4(a). Upper side 133a is the portion connecting vertices 132a and 132b. Lower side 133b is the portion connecting vertices 132c and 132d. Left side 133c is the portion connecting vertices 132a and 132c. Right side 133d is the portion connecting vertices 132b and 132d. Note that FIG. 4(a) illustrates the rear surface 131 of panel 13, and therefore the left and right are reversed.

[0026] The first sensor 21 to the fourth sensor 24 are arranged at two or more locations, namely, the vertices 132a to 132d, the upper side 133a, the lower side 133b, the left side 133c, and the right side 133d, which are surrounded by dotted lines in Fig. 4(a). The first sensor 21 to the fourth sensor 24 of this embodiment are arranged at the vertices 132a to 132d, as shown in Fig. 4(a).

[0027] The vending machine 1 is placed in the storage space 15 and has an operation target member having a plurality of operation targets 32 on a surface 300 that is visible to the user through the panel 13. As shown in Figures 1 and 3, the vending machine 1 has a display unit 3 that holds an exhibit 7. As shown in Figure 3, the display unit 3 is configured to include a display section 30 as an operation target member and a base section 31 that holds the exhibit 7.

[0028] The first sensor 21 to the fourth sensor 24 detect, as a physical quantity, the amount of deformation caused by the vibration 6 propagated to the panel 13 in response to the push operation.

[0029] (Exhibition Unit 3 configuration) The display unit 3 is formed using a resin material, for example, but may also be formed using a metal member. The display unit 30 of the display unit 3 is formed integrally with the base 31, but one may be attached to the other. Furthermore, the display unit 30 may be disposed separately from the base 31.

[0030] The display unit 3 has a long, narrow plate shape as shown in Fig. 3. The display unit 3 has an L-shape when viewed from the side.

[0031] The display unit 30 has, on a surface 300, a first operation target 32a to a twelfth operation target 32l as the operation targets 32 and a first display 33a to a twelfth display 33l as the displays 33.

[0032] The first operation target 32a to the twelfth operation target 32l are provided below the exhibit article 7, as shown in FIG.

[0033] The first operation target 32a to the twelfth operation target 32l are located on the back surface 131 side of the panel 13. In other words, the user 9 does not directly perform a push operation on the first operation target 32a to the twelfth operation target 32l, but performs a push operation on the front surface 130 of the panel 13.

[0034] The first operation target 32a to the twelfth operation target 32l are provided with letters or figures that prompt the user to perform a push operation, and may be a film or piece of paper attached to the surface 300 of the display unit 30, or may be formed by printing, but are not limited to these.

[0035] Furthermore, the display unit 30 has first display 33a to twelfth display 33l provided above the first operation target 32a to twelfth operation target 32l as displays 33 that display the prices of the products 70 corresponding to the exhibit items 7. As an example, the first display 33a to twelfth display 33l are formed by printing, but are not limited to this.

[0036] At least one of the first operation target 32a to the twelfth operation target 32l and the first display 33a to the twelfth display 33l may be configured using a display device such as a liquid crystal display arranged on the surface 100.

[0037] As shown in FIG. 3, the base 31 is configured to hold the display item 7 placed on the upper surface 310.

[0038] (Configuration of the first sensor 21 to the fourth sensor 24) The first sensor 21 to the fourth sensor 24 are vibration sensors using piezoelectric elements, for example, but are not limited to this. As shown in Fig. 5, the first sensor 21 to the fourth sensor 24 detect a physical quantity based on vibration 6 proportional to the pressure applied to the surface 130 of the panel 13 in association with a push operation. This vibration sensor has, for example, a weight, and the vibration 6 propagating through the panel 13 is transmitted to the weight, compressing and contracting the piezoelectric element. The vibration sensor is configured to output an output value V obtained by converting the charge that increases or decreases due to the compression and contraction of this piezoelectric element into a voltage.

[0039] The first sensor 21 to the fourth sensor 24 are not limited to the vibration sensors described above, and may be any sensor that detects a physical quantity that changes in response to an operation performed on the panel 13. The first sensor 21 to the fourth sensor 24 may be, for example, a displacement sensor that measures the displacement of the panel 13, an acceleration sensor or a velocity sensor that measures the acceleration or velocity of the panel 13 due to the vibration 6, a load cell that detects a change in the force applied to the panel 13 due to the vibration 6, or a strain sensor that detects the distortion of the panel 13 due to the vibration 6.

[0040] (Determining the target of a push operation) 5, when a user 9 pushes the fifth operation target 32e of the second-tier exhibition unit 3 via the panel 13, the vibration 6 propagates concentrically. Therefore, the vibration 6 outputs a large amplitude output value V in the closer sensor, and a small amplitude output value V in the farther sensor.

[0041] In Fig. 5, the third sensor 23, the first sensor 21, the fourth sensor 24, and the second sensor 22 are closest to the fifth operation target 32e where the push operation was performed in this order. Therefore, as shown in Fig. 6, the peak values ​​of the output value V become larger in the order of output value V3, output value V1, output value V4, and output value V2. In Fig. 6, the output value V1 is shown by a solid line, the output value V2 by a dotted line, the output value V3 by a dashed line, and the output value V4 by a dashed line.

[0042] The peak value of the output value V increases in proportion to the pressure of the push operation. Therefore, the determination information 160 is configured as information on a combination of the peak values ​​of the output values ​​V1 to V4 for the first operation target 32a to the twelfth operation target 32l, for example, in order to suppress the influence of differences in pressure. The control unit 18 references the determination information 160 and determines an operation target for which the peak values ​​of the output values ​​V1 to V4 are within an allowable range. The control unit 18 then controls the article dispensing unit 17 to dispense the corresponding article 70 based on the determination result. Note that if the control unit 18 does not determine that a push operation has been performed, dispensing is not performed.

[0043] Although the above-mentioned determination is made based on the combination of the peak values ​​of the output value V1 to the peak values ​​of the output value V4 for each of the first operation target 32a to the twelfth operation target 32l, a determination method may be used in which the operation target corresponding to the ratio of the peak values ​​of the output value V1 to the peak values ​​of the output value V4 is determined to be the operation target for which a push operation has been performed. The determination may also be made by comparing the area with the horizontal axis, and is not limited to these.

[0044] (Regarding variants) 4(b) and 4(c), the panel 13 as a modified example is bent so that the end portion 134 faces the main body 10. The multiple detection units are arranged so as to be in contact with the end portion 134.

[0045] FIG. 4(b) illustrates a first sensor 21 as a plurality of detection units. An end 134 of the panel 13 is bent at a right angle toward the rear panel 14. The end 134 faces a side surface 150 of the storage space 15. The first sensor 21 is disposed between the side surface 150 and the surface 130 of the end 134. The second sensor 22 to the fourth sensor 24 are disposed in the same manner as the first sensor 21. The first sensor 21 to the fourth sensor 24 may also be disposed on the back surface 131 of the end 134.

[0046] As shown in FIG. 4(c), in another modified example of the panel 13, the end 134 is bent at a right angle toward the rear panel 14, and then bent again at a right angle so as to be parallel to the front surface 130 of the panel 13. The main body 10 has a slit 151 formed in a side surface 150. The end 134 is inserted into this slit 151. The first sensor 21 is disposed between the rear surface 131 of the panel 13 and the slit 151, or between the front surface 130 and the slit 151. The panel 13 may be inserted into the slit 151 without bending the end 134.

[0047] In these modified examples, the first sensor 21 to the fourth sensor 24 are arranged in places that are difficult to see from the front of the vending machine 1, which makes the appearance better than when they are arranged in places that are visible from the front.

[0048] (Effects of the first embodiment) The vending machine 1 according to this embodiment reduces manufacturing costs and allows for easy changes to the layout of the display items 7. Specifically, the vending machine 1 can determine which display item 7 has been selected without requiring processing such as drilling holes in the panel 13, thereby reducing manufacturing costs compared to when drilling holes in the panel for selection buttons. Furthermore, the vending machine 1 allows for the display units 3 to be freely positioned within the storage space 15 without requiring processing such as drilling holes in the panel 13, making it easier to change the layout of the display items 7 compared to when drilling holes is required.

[0049] Since the vending machine 1 is placed inside the panel 13, maintenance of the panel 13 is easier and the panel is more waterproof than when holes are drilled in the surface of the panel to place the selection buttons.

[0050] The vending machine 1 determines the selected display item 7 based on the vibration 6 of the panel 13 that accompanies the push operation, so compared to when holes are drilled in the surface of the panel and selection buttons are arranged, there is no need to drill holes in the panel 13 or to make it waterproof, and there is a high degree of freedom in the layout of the display unit 3 on which the display item 7 is placed. Furthermore, because the vending machine 1 can easily determine the position of the panel 13 where the push operation was performed, there is a high degree of freedom in the number and shape of the display items 7, operation targets 32, and displays 33.

[0051] [Second embodiment] The second embodiment differs from the first embodiment in that sensors are arranged on either side of the display unit.

[0052] Fig. 7 is a diagram showing an example of a vending machine according to the second embodiment. Fig. 8 is a graph showing an example of output values ​​detected by the first sensor and the second sensor of the vending machine according to the second embodiment. In the embodiments described below, parts having the same functions and configurations as those in the first embodiment are given the same reference numerals as those in the first embodiment, and their description will be omitted.

[0053] Fig. 7 is a diagram showing an example of a vending machine according to the second embodiment. Fig. 8 is a graph showing an example of output values ​​of a first sensor and a second sensor according to the second embodiment. In Fig. 8, the horizontal axis represents time t and the vertical axis represents output value V. This output value V is, for example, a voltage, but is not limited to this.

[0054] 7, the plurality of operation targets 32 form a plurality of operation target rows 320 arranged in one direction. The first sensors 21 and the second sensors 22 as a plurality of detection units are arranged so as to sandwich the respective operation target rows 320 therebetween.

[0055] 7, the vending machine 1 of this embodiment has exhibition units 3 arranged on the upper, middle, and lower levels. The operation target row 320 shows a plurality of operation targets 32 arranged in a row on the exhibition unit 3. On the exhibition unit 3, the first operation target 32a to the twelfth operation target 32l as the operation target row 320 are arranged in a row.

[0056] The first sensor 21 and the second sensor 22 are arranged so as to sandwich the operation target row 320, that is, so as to sandwich the longitudinal direction of the display unit 3. The first sensor 21 and the second sensor 22 are attached to the back surface 131 of the panel 13, but may also be arranged on the end portion 134 of the panel 13 that is bent so as not to be visible from the front as in the above-mentioned modified example, and are not limited to this.

[0057] (Determining the target of a push operation) 8 is a graph showing the output values ​​V output by the first sensor 21 and the second sensor 22 when a push operation is performed on the first operation target 32a to the twelfth operation target 32f. The solid line represents the output value V1 of the first sensor 21, and the dotted line represents the output value V2 of the second sensor 22.

[0058] When a push operation is performed on the first operation target 32a to the sixth operation target 32c, the first sensor 21 outputs an output value V1 whose peak value is greater than the peak value of the output value V2 of the second sensor 22, because the distance from the first sensor 21 to the first operation target 32a to the sixth operation target 32c is shorter than the distance from the second sensor 22 to the first operation target 32a to the sixth operation target 32c.

[0059] When a push operation is performed on the seventh operation target 32g to the twelfth operation target 32f, the first sensor 21 outputs an output value V1 whose peak value is smaller than the peak value of the output value V2 of the second sensor 22, because the distance from the first sensor 21 to the seventh operation target 32g to the twelfth operation target 32f is longer than the distance from the second sensor 22 to the seventh operation target 32g to the twelfth operation target 32f.

[0060] The peak value of the output value V increases in proportion to the pressure of the push operation. Therefore, in order to suppress the influence of differences in pressure, the determination information 160 is configured as information on the ratio between the peak value of the output value V1 and the peak value of the output value V2 for each of the first to twelfth operation targets 32a to 32f, for example. The control unit 18 references the determination information 160 and determines the operation target for which the push operation was performed from the ratio between the peak value of the output value V1 and the peak value of the output value V2. The control unit 18 then controls the article dispensing unit 17 to dispense the corresponding product 70 based on the determination result. Note that if the control unit 18 does not determine that a push operation has been performed, dispensing is not performed.

[0061] Although the above-mentioned determination was made based on the ratio between the peak value of the output value V1 and the peak value of the output value V2, the determination may be made by storing the peak value of the output value V1 and the peak value of the output value V2 for each of the first operation target 32a to the twelfth operation target 32f as determination information 160 and determining the operation target corresponding to the peak value of the output value V1 and the peak value of the output value V2 within an allowable range. The determination may also be made by comparing the area with the horizontal axis, and is not limited to this.

[0062] (Effects of the second embodiment) In the vending machine 1 of this embodiment, the first sensor 21 and the second sensor 22 are arranged on either side of the display unit 3, so the detection accuracy of the selected display item 7 is higher than when this configuration is not adopted.

[0063] According to at least one of the embodiments of the vending machine 1 described above, it is possible to reduce manufacturing costs and to easily change the layout of the display items 7.

[0064] Although the embodiments and modifications of the present invention have been described above, these embodiments and modifications are merely examples and do not limit the scope of the invention as claimed. These novel embodiments and modifications can be embodied in various other forms, and various omissions, substitutions, modifications, etc. can be made without departing from the spirit of the present invention. Furthermore, not all combinations of features described in these embodiments and modifications are necessarily essential to solving the problems of the invention. Furthermore, these embodiments and modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0065] 1...vending machine, 3...display unit, 6...vibration, 7...display item, 9...user, 10...main body, 11...box, 12...door, 13...panel, 14...rear panel, 15...storage space, 16...memory unit, 17...item dispensing unit, 18...control unit, 21-24...first sensor to fourth sensor, 30...display unit, 31...base unit, 32...operation target, 32a-32l...first operation target to twelfth operation target, 33...display, 33a-33l...first display to twelfth display, 70...product, 100...surface, 110...open Opening portion, 120...front surface, 121...recess, 122...banknote inlet / outlet, 123...coin inlet, 124...return lever, 125...amount display, 126...change return port, 127...product outlet, 128...door lock, 129...advertising space, 130...front surface, 131...back surface, 132a-132d...vertex, 133a...upper edge, 133b...lower edge, 133c...left edge, 133d...right edge, 134...edge, 150...side surface, 151...slit, 160...determination information, 300...front surface, 310...top surface, 320...operation target row

Claims

1. a plurality of operation targets provided corresponding to a plurality of exhibits housed in a housing space between the housing and a panel attached to the housing, the operation targets being targets for a user's operation when selecting a desired exhibit from the plurality of exhibits; a plurality of detection units for detecting changes in physical quantities occurring on the panel based on the operation performed on the surface of the panel with respect to the operation target of the desired exhibit item; Vending machine with.

2. the plurality of operation targets constitute a plurality of operation target rows arranged in one direction, The plurality of detection units are arranged so as to sandwich the respective operation target arrays.

2. The vending machine of claim 1.

3. the plurality of detection units are disposed at at least two positions at four vertices of the panel, and at an upper side, a lower side, a left side, and a right side that connect adjacent vertices; 2. The vending machine of claim 1.

4. an operation target member disposed in the storage space and having a plurality of the operation targets on a surface visible to the user through the panel; 4. The vending machine according to claim 1.

5. the detection unit detects, as the physical quantity, a deformation amount based on vibration propagated to the panel based on the operation.

5. The vending machine according to claim 4.

6. a determination unit that determines the exhibit item selected by the user based on a plurality of output values ​​acquired from a plurality of the detection units; 6. The vending machine according to claim 5.

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