JP2002015368A - Vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To heat a commodity just before output quickly and efficiently without overheating excessively commodities on the upper stage in a vending machine. SOLUTION: A flat heating element 32B is integrated at least on a position contactable with commodities on the lowest stage or close thereto, for example, on an output flapper 30, in a commodity output device 21 part on the lower end of a commodity storing channel of the vending machine, to thereby heat directly the commodity in contact with the output flapper 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vending machine.

[0002]

2. Description of the Related Art A vending machine for canned or bottled soft drinks and the like is provided with a plurality of rows of product racks, and blows hot or cold air from below the product racks, so that the products in the product racks are blown. Is heated or cooled.

In the vending machine as described above, a plurality of rows of merchandise racks are set in a width direction, each set is partitioned by a heat insulating partition, and one delivery chute is used for each set. Are dropped and sent to the product outlet.

Each of the commodity racks has left and right side panels and guide plates forming front and rear walls therebetween.
The commodities that have been guided between the guide plates and descended are released one by one from the lowermost ejection device onto the delivery chute.

[0005] In the space behind the delivery chute of each set, an evaporator of a refrigerator and a heater composed of a sheathed heater in a set capable of selecting a heating or cooling mode are provided, where hot air or cold air is formed. In addition, the products in the product rack are heated or cooled by blowing air downward from the air holes provided in the delivery chute.

In the heating mode, warm air generated by the heater is constantly circulated along a merchandise rack in a vending machine by a circulation fan. As described above, when the circulation fan does not circulate the warm air, the heating state of the product is biased.

In a conventional vending machine, a product is always kept at the same temperature as a product rack, a side wall, a ceiling, etc. in a refrigerator by circulating warm air.

In such a vending machine, a so-called energy-saving operation is performed, which is continuously performed for several hours to cool or heat the whole interior of the refrigerator together with the product to a constant temperature.
After the refrigerator or heater is stopped, there is an operation mode in which only the circulation fan is operated to circulate cool air and / or warm air, and the refrigerator or heater is stopped until the entire inside of the refrigerator returns to a constant temperature.

In the energy saving operation and the heating mode, when the temperature in the refrigerator falls from a predetermined temperature, the heater is turned on by the thermo switch, and the heating operation is started again.

[0010] At this time, the temperature of the product is not synchronized with the warm air from the heater but is directly transmitted to the product.

[0011]

Therefore, when the heating operation is restarted, there is a so-called rise delay that takes a long time until the temperature of the product is heated to the predetermined temperature.

In particular, the temperature of the product in the lower part of the product rack is slower than that of the product in the upper part. At this time, if the consumer purchases the product, the product is thrown out with insufficient heating. With unsatisfactory results.

Also, in many cases, when the lowermost product is heated to an appropriate temperature, the upper product is heated to the upper limit temperature, the contents are liable to be deteriorated, and the heating energy is wastefully consumed. turn into.

On the other hand, when the temperature sensor detects a certain temperature, the heater may be operated in small increments to heat the heater. In this case, however, it is necessary to heat the entire interior of the refrigerator. Therefore, there is a problem that the heater must be frequently operated in order to maintain the state in which the commodity at the bottom of the commodity rack is heated to a satisfactory temperature.

Further, as described above, the warm air or the cool air is blown downward from the air hole provided in the delivery chute below the commodity rack. At this time, since the delivery chute is inclined forward and downward, The blown-out hot air once collides with a flap of a product outlet disposed in front of the delivery chute, and is then diffused into the storage.

For this reason, in the heating mode, the warm air colliding with the flaps reaches the upper part of the storage as it passes through the air circulation path, and is further circulated therefrom to move downward. Reach the lower product.

Therefore, when the heating mode is started, the products in the upper part and the upper part of the refrigerator are first warmed, and the products to be discharged first at the position of the commodity discharging device are heated last. There is a problem that.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a vending machine capable of rapidly heating a lower product at the start of a heating operation. I do.

Another object of the present invention is to provide a vending machine capable of heating energy from a product to be thrown out and preventing energy from being overheated in the upper part of the refrigerator when the product is heated. .

[0020]

According to the present invention, an outer box is provided with a product filling opening at an upper end of each row and a product discharging opening at a lower end thereof, and is provided in a width direction when viewed from the front of the outer box. It has product racks arranged in a plurality of rows, and these product racks
Each product includes a product storage channel including left and right side panels as viewed from the front of the outer box, and front and rear guide plates disposed between the side panels and stacked and stored so that the products can be sequentially moved downward. In the vending machine, the storage channel has a product discharging device that releases and drops the products stacked and stored in the product storage channel one by one sequentially from the lower end at the position of the product discharging opening, A vending machine characterized in that a sheet heating element for heating a product to a predetermined temperature is arranged at a position near at least the lowermost product stored in a product storage channel near the product discharging device. This achieves the above object.

In the vending machine, the product discharging device has a flapper mounting plate continuous with one of the front and rear guide plates and a product size adjusting plate continuous with the other, and the flapper mounting plate is provided with the product size. A projecting flapper that advances and retreats with respect to the adjusting plate to release and drop the products one by one in order from the lower end, wherein the product size adjusting plate is capable of adjusting a distance to the projecting flapper in accordance with a diameter of the product; The planar heating element may be provided on at least one of the projection flapper and the product size adjustment plate.

Further, in the vending machine, the product discharging device has a flapper mounting plate continuous to one of the front and rear guide plates and a product size adjusting plate continuous to the other, and the flapper mounting plate is A projection flapper is provided to advance and retreat with respect to the product size adjustment plate and release and drop the products one by one in order from the lower end, and the product size adjustment plate can adjust a distance to the projection flapper according to a diameter of the product. The planar heating element is formed in a flexible film shape, and is capable of contacting at least one of the fifth to fifth products stored in the product storage channel. The position may be provided on at least one of the attachment plate and the product size adjustment plate.

Further, in the vending machine, the product storage channel is configured to store a substantially cylindrical product with its central axis being horizontal, and the flexible film-like planar heating element may be configured as follows. You may make it provide so that it may contact the circumferential surface of the said substantially cylindrical product.

Further, in the vending machine, the planar heating element may be provided on at least one of inner surfaces of the left and right side panels.

Still further, in the vending machine, the planar heating element may include a right side panel of a left product storage channel and a left side panel of a right product storage channel in the left and right adjacent product storage channels. May be arranged between them.

Further, in the vending machine, the commodity discharging device has a flapper attachment plate continuous to one of the front and rear guide plates and a commodity size adjustment plate continuous to the other, and the flapper attachment plate is A projection flapper is provided to advance and retreat with respect to the product size adjustment plate and release and drop the products one by one in order from a lower end, and the product size adjustment plate can adjust a distance to the projection flapper according to a diameter of the product. The planar heating element may be provided on at least one of the flapper mounting plate and the product size adjusting plate.

Still further, in the vending machine, the planar heating element may include a product dimension adjusting plate on a rear side of a front product storage channel in the front and rear adjacent product storage channels and a front side of a rear product storage channel. May be arranged between the product size adjustment plates.

Further, in the vending machine, the planar heating element is provided in close contact with a film-shaped heating body sheet and a surface of the heating body sheet which can come into contact with a product. A heat conductive sheet made of metal and a heat insulating sheet provided in close contact with the surface on the opposite side may be provided.

Further, in the vending machine, the sheet heating element comprises a film-shaped heating body sheet,
Between the side panels, or between the product size adjustment plates,
It may be provided in close contact with these.

Further, one or a plurality of adjacent ones of the plurality of rows of merchandise racks are arranged as one set, and are arranged below the merchandise ejecting device in each set so as to be inclined downward toward the front surface. A plate-like delivery chute in which a plurality of air holes that allow air to flow from the back side to the surface side,
A heating device that blows warm air into a space behind the delivery chute, wherein the heating device includes a main heater and an electric motor that blows air heated by the main heater into a space behind the delivery chute. The heat generation amount of the planar heating element may be 1/5 to 1/15 of the heat generation amount of the main heater.

Further, in the vending machine, a temperature sensor for detecting a temperature at an intermediate height position in the product rack, a control device for turning on and off the planar heating element, the main heater, and the electric fan, And the control device turns on the main heater continuously for 5 to 19 hours so as to heat the product to the high temperature side set temperature, and
When the main heater is on, the sheet heating element is turned off, the electric fan is turned on, and when the main heater is off, the sheet heating element is turned off by 5% from the high temperature side set temperature. The electric fan is turned on intermittently at a temperature that is lower by １５15 ° C., and the electric fan is intermittently delayed in phase with respect to each heating time of the heat exchanger, and at the same cycle as the sheet heating element. It may be turned on.

According to the present invention, the commodity stored in the commodity rack is quickly heated from the commodity in the vicinity of the lowermost row. Therefore, the deterioration and wasteful energy consumption of the commodity in the upper row due to excessive heating are suppressed.

[0033]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, a vending machine 10 according to this embodiment is of a cooling and heating type, and has a height range of about 4/5 from the upper end of the front surface of an outer box 12 thereof. Is opened and can be freely opened and closed by a middle door 16.

A horizontal partition plate 13 is provided in the inner space of the outer box 12 at a height of about 1/5 from the bottom, and above the horizontal partition plate 13, as shown in FIG. ,
Six rows of product racks 18A to 18F in the width direction viewed from the front
Are arranged so that they can be freely inserted and removed in the front-rear direction.

As shown in FIG. 3, these product racks 18A to 18F are suspended from the upper end surface thereof to the ceiling 12A of the outer box 12, and the product racks 18A to 18F are provided on the upper part of the front surface thereof. An opening 17A for filling is formed. In addition, between the product racks 18A to 18F, the heat insulating partition 2
5, the product racks 18A to 18C,
The left storage 11A, the middle storage 11B, and the right storage 11C (see FIG. 1) which store 18D, 18E, and 18F as a set, respectively.

It should be noted that in FIG.
There are four vertical racks for each of the product racks 18A-18F. As shown in FIG. 3, each of the product racks 18A-18F has four rows of vertical product storage channels 17 in the depth direction. Because we have.
There are also three-row or five-row vending machines.

The lower end of each product storage channel 17 in each of the product racks 18A to 18F is formed as a product discharging opening 21A below the product discharging device 21.
It faces downward to the delivery chute 20 for discharging the product, which is arranged below A-18F. The delivery chute 20 is disposed so as to be freely inserted into and removed from the horizontal partition plate 13 and to be inclined forward and downward in a mounted state.

The space 13 below the horizontal partition plate 13
A is provided with a refrigerator compressor 22A and a condenser 22B which constitute a part of the cooling and heating device 22.

Reference numerals 52A, 52B and 52C in FIGS.
Are circulating fans for blowing air cooled or heated by the cooling and heating device 22 into the back space 20B below (on the back side of) the delivery chute 20 in each of the left warehouse 11A, the middle warehouse 11B, and the right warehouse 11C. Is shown.

As shown in FIG. 3, the left warehouse 11A,
The circulation fan 52A in the middle storage 11B and the right storage 11C,
On the suction side of 52B and 53C, an evaporator 22C of a refrigerator in the cooling and heating device 22 is disposed. The air blown by the circulation fans 52A, 52B, 53C passes through a number of air holes 20A formed in the delivery chute 20 of each warehouse, and passes through the product racks 18A to 18A.
It is supplied to the lower side of 8F. The heater 22 for heating
D is, for example, a sheathed heater, and is arranged upstream of the circulation fans 52B and 52C in the middle storage 11B and the right storage 11C as shown in FIG. Symbol 2 in FIG.
2E indicates a cooling fan for cooling the condenser.

As shown in FIG. 4, the product racks 18A to 18F are disposed on the left and right side panels 19A, 19A when viewed from the front of the outer box, respectively, and are disposed between the side panels 19A, 19A. And a guide plate 19C for stacking and accommodating products 36 having a substantially cylindrical shape, such as canned coffee, in a laterally and movably downward order, and the inner surfaces thereof constitute the product storage channel 17. ing.

As shown in FIGS. 3 and 4, the guide plate 19C includes a plurality of curved plates 1 having an arc-shaped cross section.
7B are arranged so as to be sequentially continuous in a waveform in the up-down direction, and each curved plate 17B has side panels 19A,
Supported by 19A.

Between the product racks 18C and 18D, 18
D and 18E are partitioned by a heat insulating partition 25.

As shown in FIG. 5, the product dispensing device 21 includes a flapper mounting plate 26 which is continuous below one of the front and rear guide plates 19C and a product size adjusting plate 28 which is continuous below the other. It is configured. The flapper mounting plate 26 includes a projecting flapper 30 that advances and retreats (swings) with respect to the product size adjusting plate 28 to release and drop the products 36 one by one from the lower end.
The distance to the discharge flapper 30 can be adjusted according to the size of the product 36 in the radial direction. Sheet heating elements 32A and 32B are provided at positions where the projected flapper 30 and the product dimension adjusting plate 28 come into contact with the product 36, respectively.

The sheet heating elements 32A and 32B are in close contact with the film-shaped heating body sheet 33A made of metal foil which generates heat when energized, through an insulating layer (not shown) on the side in contact with the product 36. A heat transfer plate 33B made of a good heat conductor such as a copper plate.

As described above, the planar heating elements 32A and 32B generate heat when energized, and output the respective outputs of the heaters 22D in the middle storage 11B and the right storage 11C by 30.
When it is set to 0W, 20W for the middle warehouse 11B and 4 for the right warehouse 11C.
The output is 0 W, a total output of about 60 W, and the heat generation temperature is set to 55 ° C. when the environmental temperature is 8 to 10 ° C. A side panel 19A having a height just above the planar heating element in the middle storage 11B and the right storage 11C.
Are provided with limit temperature sensors 41B and 41C for shutting off the energization of the sheet heating element when the detected temperature becomes, for example, 60 ° C.

Further, a limit temperature sensor 41D is provided near the upper ends of the middle storage 11B and the right storage 11C to cut off the current supply to the sheet heating element when the detected temperature reaches, for example, 50 ° C.

The ejection flapper 30 is of a swinging type, but may be of another type, for example, a type that moves horizontally.

Reference numeral 38 in FIG. 6 indicates a day / night power switching device. The day / night power switching device 38 switches the power supplied to the power supply 39 of the vending machine 10 to nighttime power, which is low in cost at night, and to daytime power, which is normal cost in daytime. .

FIG. 6 is a circuit diagram showing a control system of the vending machine 10. The control device 40 includes a left storage 11A, a middle storage 11
B, a cooling or heating operation is performed based on the detected temperatures of the temperature sensors 42A to 42C provided in the vicinity of the commodity ejection opening 21A at the lower end of the commodity storage channel 17 corresponding to each right storage 11C.

Normally, the cooling and heating device 22 is provided with one cooling compressor 22A for the entire vending machine 10, and the refrigerant is supplied from the condenser 22B and the switching valve 23A.
Through 23C, the corresponding evaporators 54A to 54C
Are selectively supplied. Further, the circulation fans 52A, 52B, 52C are constantly operated to circulate cool air or warm air.

More specifically, in the cooling mode, when the detected temperature of any of the temperature sensors 42A to 42C becomes equal to or higher than a predetermined value, the compressor 22A is turned on, and the corresponding one of the evaporators 54A, 54B, 54C is turned on. The refrigerant is supplied, and the compressor 22A supplies the refrigerant to the evaporator 22C for a time period corresponding to the characteristics of the vending machine 10 according to the detection signal of the temperature sensor.
In general, the continuation of 2A, the defrosting time, and the like are controlled by electronic control of the refrigerant in each storage via an electromagnetic valve.

Vending machine 10 according to the example of this embodiment
When the middle storage 11B and the right storage 11C are in the heating mode, the heating by energization of the heater 22D is performed by the temperature sensors 42B and 42C provided near the commodity outlet 21A.
It is turned on and off by the detected temperature.

The planar heating elements 32A and 32B are configured to generate heat when the heater 22D is off. Therefore, even if the set temperatures of the temperature sensors 42B and 42C are set lower than before and the overall maximum temperature in the heating mode is lowered, the lowermost three to six products 36 are predetermined. Can be heated to temperature.

The planar heating elements 32A and 32B are always in a heat-generating state regardless of the detected temperatures of the above-mentioned 42B and 42C, and the set temperatures of the temperature sensors 42B and 42C are set lower than before. You may leave.

As described above, in particular, the output of the planar heating elements 32A and 32B is directly applied to the product 36 which is in metal contact with the product size adjustment plate 28 and the discharge flapper 30 at the lower end of the product storage channel 17. The product 36 can be quickly heated to and maintained at a predetermined temperature without heating the air.

In the above embodiment, the planar heating elements 32A and 32B are incorporated in the product size adjusting plate 28 and the ejection flapper 30, respectively, but the present invention is not limited to this. In the vicinity of the product discharging device 21,
A planar heating element is provided at a position where it can contact at least the lowermost product 36 stored in the product storage channel 17,
What is necessary is just to heat the product 36 directly.

The second embodiment of the present invention shown in FIG.
In the example, the sheet heating element 32C is provided only on the back side of the commodity size adjusting plate 28.

In this case, the sheet heating element 32C is formed by omitting the heat transfer plate 33B and leaving only the heating body sheet 33A.
The heat is transmitted directly to the product size adjustment plate 28.

Next, in a third example of the embodiment of the present invention shown in FIG. 8, the planar heating element 32D is
It is provided in contact with the outside of 9A. In this case, as shown in FIG. 8, the heat-generating main body sheet 33 is provided in the gap between the side panels 19A, 19A of the adjacent product storage channels 17.
A only, and the heat transfer plate 33
Instead of B.

In the fourth example of the embodiment shown in FIG. 9, four adjacent product storage channels 17 in the front-rear direction are collectively heated by using a planar heating element 32E long in the front-rear direction. is there.

In this case, since there are irregularities between the two front and rear product racks, a transmission plate 33B is provided so as to fill the recess of the side panel 19A, and the side panels 19A, The heat generating body sheet 33A, which is long in the front-rear direction, is attached between the 19A and the transmission plate 33B.

In the example of the above embodiment, the planar heating elements 32A to 32E are all provided without being deformed by contacting a hard metal plate. For example, in the embodiment shown in FIG. As in the fifth example, the sheet heating element 3 is integrally formed with the flexible sheet 34 at a position where the descending product 36 elastically contacts the inside of the product storage channel 17.
2F, wherein the planar heating element 32F has a substantially cylindrical shape.
6 may be elastically contacted with the circumferential surface (outer peripheral surface).

In this way, the product storage channel 1
7, the sheet-like heating element 32F directly contacts the surface of the product 36 which is stationary in the standby state for throwing out and heats it, and when the product 36 moves in the throwing direction, it becomes elastic as it descends. Since the product is deflected and escapes, the movement of the product is not hindered.

Further, in the above embodiment, the sheet heating elements 32A to 32F are provided separately, but they may be all provided in one vending machine 10, or two arbitrary heating elements may be provided. The above may be provided.

[0067]

As described above, the present invention is constructed as described above, so that the commodity at the lowermost stage and the vicinity thereof is quickly heated at the time of heating and startup, thereby preventing sales with insufficient heating. The product filled in the upper stage of the rack is not overheated excessively, and therefore has an excellent effect that the deterioration of the product and the wasteful consumption of energy can be suppressed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vending machine according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a delivery chute pulled out state of the vending machine.

FIG. 3 is a schematic side sectional view of the vending machine.

FIG. 4 is an enlarged perspective view, partially in section, showing a lower end of a product storage channel of the vending machine.

FIG. 5 is an enlarged perspective view showing the essential parts in an exploded manner.

FIG. 6 is a block diagram showing a control system in the cooling and heating vending machine.

FIG. 7 is a cross-sectional plan view showing a state in which a planar heating element is installed in a second example of the embodiment of the present invention.

FIG. 8 is an exploded perspective view showing an installation state of a planar heating element in a third example of the embodiment of the present invention.

FIG. 9 is an exploded perspective view showing a state where a planar heating element is installed in a fourth example of the embodiment of the present invention.

FIG. 10 is a sectional view showing a state in which a planar heating element is installed in a fifth example of an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Vending machine 17 ... Commodity storage channel 18A-18F ... Commodity rack 19A ... Side panel 19C ... Guide plate 20 ... Delivery chute 20A ... Air hole 20B ... Backside space 21 ... Commodity ejection device 21A ... Commodity ejection opening 22 ... Cooling and heating device 26 ... Flapper mounting plate 28 ... Product size adjustment plate 30 ... Ejection flapper 32A, 32B, 32C, 32D, 32E, 32F ... Planar heating element 33A ... Heating body sheet 33B ... Heat transfer plate 34 ... Possible Flexible sheet 36 ... Product 40 ... Control device 52A, 52B, 52C ... Circulation fan

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[Procedure amendment]

[Submission date] July 4, 2000 (200.7.4)

[Procedure amendment 1]

[Document name to be amended] Drawing

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[Document name to be amended] Drawing

[Correction target item name] Fig. 7

[Correction method] Change

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[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 8

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[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 9

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[Procedure amendment 5]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

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Claims (12)

[Claims] 1. A product rack having a product filling opening at an upper end of each row and a product discharging opening at a lower end thereof, and a plurality of product racks arranged in a width direction when viewed from the front of the outer case. These product racks have left and right side panels as viewed from the front of the outer box, and guide plates before and after, which are arranged between these side panels and which sequentially stack and store products so as to be movable downward. A product storage device comprising: a product storage channel comprising: a product storage channel configured to release and drop products stacked and stored in the product storage channel at the position of the product discharge opening one by one in order from a lower end. In the vending machine having, in the vicinity of the product discharging device, at a position where it can contact at least the lowest product stored in the product storage channel,
A vending machine having a planar heating element for heating a product to a predetermined temperature. 2. The product delivery device according to claim 1,
It has a flapper mounting plate that is continuous with one of the front and rear guide plates and a product size adjustment plate that is continuous with the other, and the flapper mounting plate advances and retreats with respect to the product size adjustment plate to release products one by one in order from the lower end. A projection flapper to be dropped; the product dimension adjusting plate capable of adjusting a distance to the projection flapper in accordance with a diameter of the product; A vending machine provided on at least one of the plates. 3. The product delivery device according to claim 1,
It has a flapper mounting plate that is continuous with one of the front and rear guide plates and a product size adjustment plate that is continuous with the other, and the flapper mounting plate advances and retreats with respect to the product size adjustment plate to release products one by one in order from the lower end. A projecting flapper for dropping, the product size adjusting plate is capable of adjusting a distance to the projecting flapper according to a diameter of the product, and the sheet heating element is formed in a flexible film shape. And provided on at least one of the mounting plate and the product size adjustment plate at a position where it can contact at least one of the fifth to fifth products stored in the product storage channel. A vending machine. 4. The product storage channel according to claim 1, wherein the product storage channel is configured to store a substantially columnar product with its central axis horizontal. A vending machine characterized in that it is provided so as to be able to contact the circumferential surface of a substantially cylindrical product. 5. A vending machine according to claim 1, wherein said planar heating element is provided on at least one inner surface of said left and right side panels. 6. The product heating channel according to claim 1, wherein the planar heating element includes a right side panel of a left product storage channel and a left side of a right product storage channel in the product storage channels adjacent to each other. A vending machine characterized by being arranged between a side panel. 7. The product delivery device according to claim 1,
It has a flapper mounting plate that is continuous with one of the front and rear guide plates and a product size adjustment plate that is continuous with the other, and the flapper mounting plate advances and retreats with respect to the product size adjustment plate to release products one by one in order from the lower end. A projection flapper to be dropped; the product dimension adjusting plate capable of adjusting a distance to the projection flapper in accordance with a diameter of the product; A vending machine provided on at least one of the plates. 8. The product according to claim 7, wherein the sheet heating element comprises a product dimension adjusting plate on a rear side of a front product storage channel in the front and rear adjacent product storage channels and a product on a front side of a rear product storage channel. A vending machine characterized by being arranged between a dimension adjusting plate. 9. The method according to claim 1, wherein
The sheet heating element includes a film-shaped heating body sheet, a metal heat conductive plate provided in close contact with a surface of the heating body sheet that can come into contact with a product, and an opposite surface. A heat insulating sheet provided in close contact with a vending machine. 10. The sheet heating element according to claim 6, wherein the sheet heating element is formed of a film-shaped heating body sheet and is in close contact with the side panel or between the product size adjusting plates. A vending machine characterized by being provided. 11. The method according to claim 1, wherein
As one set of the plurality of rows of product racks or a plurality of adjacent product racks, each set is arranged at a lower side of the product ejection device in each set so as to be inclined downward toward the front, and from the back side to the front side. A delivery chute in which a plurality of air holes that allow outflow of air are formed, and a heating device that blows warm air into a space behind the delivery chute, wherein the heating device is , A main heater, and an electric fan that blows air heated by the main heater into a space on the back side of the delivery chute. A vending machine characterized in that the ratio is 1/5 to 1/15. 12. A temperature sensor for detecting a temperature at an intermediate height position in the commodity rack, according to claim 11,
A control device for controlling the on / off of the planar heating element, the main heater, and the electric fan, wherein the control device controls the main heater to heat the product to a high-side set temperature for 5 to 19 hours continuously. And, when the main heater is on, the sheet heating element is turned off, the electric fan is turned on, and the sheet heating element is turned off when the main heater is off. 5 higher than the high temperature setting
The electric fan is turned on intermittently at a temperature that is lower by １５15 ° C., and the electric fan is intermittently delayed in phase with respect to each heating time of the heat exchanger, and at the same cycle as the sheet heating element. A vending machine characterized by being turned on.