JP2008134783A - Vending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost, mass selling, and energy-saving vending machine, having a safely operated flapper opening/closing mechanism of a duct, that will not be restricted by the wall structure of the vending machine. <P>SOLUTION: The vending machine has a commodity storage rack 6 in a box of a cabinet 1, a cooling/heating unit 8 with a fan for cooling or heating the commodity, and a duct 7, arranged in the rear face inside the box and having a flapper opening/closing means 79 for making a suction port 70a for the air circulation/sending change. The flapper opening/closing means 79 includes a flapper 71, an operating unit 73 for manually opening/closing the flapper, and a rod 72 for connecting the flapper and the operating unit. The operating unit 73 has a guide groove 74a for making the rod regulate and an operation groove 74b for making the rod move vertically. Since the components are assembled integrally inside the duct and the operation groove 74b is wider than the guide groove 74a, flexibility within the range of operation becomes higher and the operation easier. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vending machine that cools and heats products such as beverages in containers such as cans, bottles, packs, and PET bottles for sale.

There is a strong demand for energy saving in vending machines due to global warming and carbon dioxide emission reduction issues. In order to save energy, it is useful to reinforce the heat insulation structure of the vending machine and to partially cool and heat only necessary products in the warehouse. In order to reinforce the insulation structure of the vending machine, it is effective to increase the thickness of the insulation wall or use a vacuum insulation material. In recent years, the surface of the partition plate of the hot and cold rooms in the vending machine is thin. In addition, a method of covering the synthetic resin to suppress the ingress of heat between the hot product storage chamber and the cold product storage chamber of the product storage chamber (hereinafter, this structure is referred to as an inner box-less structure) is known (for example, a patent Reference 1). In addition, as a method of partially cooling and heating the interior, a method is known in which a vent is laid in the middle of the duct on the back of the interior, and the air path is switched by a flapper according to the sales situation of the product. (For example, patent document 2).
JP 2000-163639 A Japanese Patent Laid-Open No. 2000-230408

However, there is the following problem when trying to install the duct switching device on the back surface of Patent Document 2 in a vending machine having an inner box-less structure and a vacuum insulation wall.
1) The vending machine suitable for energy saving uses a vacuum heat insulating material on the inner wall, or uses a resin wall surface, so the rod that links the lever and duct flapper cannot be firmly fixed to the wall surface, and lever operation There is a risk of dropping out.
2) Since the lever is installed on the front side of the cabinet and the flapper is installed in the duct on the back side of the cabinet, the entire mechanism is installed on the production line in the vending machine cabinet. Since the duct, rod, and lever are assembled in this order, assembly adjustment and operation adjustment on the line are required, which increases the number of assembly steps and increases the cost.
3) It is desirable that the switching of ducts is originally set appropriately by the vending machine administrator taking into account the sales situation of the product, so if the lever is in front, the worker who simply puts the product (for example, part-time job) There is a risk of operating the lever by mistake. In addition, if a switching lever is provided on the back side of the vending machine, it is difficult to operate because the hand must be put under the product storage rack from the front side of the vending machine.

  Therefore, the present invention has been considered in view of the above points, and is not limited by the wall structure of the vending machine, and is a low-cost and easy-to-operate duct flapper opening / closing mechanism. It aims at providing the energy-saving type vending machine which has.

The vending machine according to claim 1 of the present invention includes a product storage rack that carries out products stored side by side in a cabinet in a cabinet in order from the lowest order in accordance with a sales command, and a product storage rack that matches the sales mode. A cooling / heating unit with a fan that cools or warms the product by circulating or blowing cool air or warm air, and the rear of the cooling / heating unit connected to the wind tunnel of the cooling / heating unit. In a vending machine comprising a duct having a flapper opening and closing means for opening and closing, the flapper opening and closing means includes a flapper, an operation part for manually opening and closing the flapper, and a rod for connecting the flapper and the operation part. The operation portion has a guide groove for restricting the rod and an operation groove for moving the rod up and down. And butterflies.
The vending machine according to claim 2 of the present invention is the vending machine according to claim 1, wherein the guide groove has an inverted J shape, and the operation groove is formed by connecting the outermost shape of the guide groove. It is characterized by that.

The vending machine according to claim 3 of the present invention is the vending machine according to claim 1 or 2, wherein the flapper has a claw protruding from the upper edge or the lower edge, and the claw piece is a duct. It is characterized by being inserted and engaged with the formed hole.
The vending machine according to claim 4 of the present invention is the vending machine according to any one of claims 1 to 3, wherein the flapper opening / closing means has a plurality of flappers, one rod, A plurality of flappers are selectively opened and closed at a portion.

According to the cooling device according to claims 1 to 4 of the present invention, the following effects can be obtained.
1) Since the duct flapper opening / closing mechanism is housed in the duct, it is not restricted by the wall surface of the vending machine. As a result, the vending machine is partially cooled by the inner box-less structure and vacuum insulation. A suitable energy saving effect can be obtained by heating.
In addition, since the operation part is housed in the duct and has a guide groove for restricting the vertical movement position of the rod and an operation groove formed by connecting the outermost contours of the guide groove, the operation is simple and the part-time job is performed. The operator who supplies the beverage of the vending machine does not operate the lever by mistake.
2) Since the flapper has a protruding piece protruding from the upper edge portion or the lower edge portion and is inserted into and engaged with a long locking hole formed in the duct, it can be manufactured and assembled at low cost.
3) Since the flapper opening / closing means has multiple flappers and can be opened and closed by selectively interlocking multiple flappers with one rod and operation unit, only the vending machine administrator sells the products. In consideration of the situation, the partial cooling and the whole cooling in a plurality of stages are appropriately set by simple operations. As a result, it is possible to obtain a suitable energy saving effect and to deal with mass sales.

Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.
(Example 1)
1-5 is explanatory drawing of Example 1 which showed the form of the vending machine based on this invention. FIG. 1 is a side sectional view of the vending machine according to the first embodiment during a partial cooling operation, and FIG. 2 is a side sectional view of the vending machine according to the first embodiment during a whole cooling operation. 3 is a partial cross-sectional perspective view of the vending machine according to the first embodiment, FIG. 4 is a partial cross-sectional perspective view showing the structure of the flapper opening / closing means in the vending machine of FIG. 3, and FIG. During the cooling operation, (b) shows the operating state during the entire cooling operation. 5A and 5B are side views of the superstructure of FIG. 4, where FIG. 5A shows an operation state during a partial cooling operation, and FIG. 5B shows an operation state during a whole cooling operation.

In these FIG. 1 thru | or FIG. 3, the vending machine is the main body cabinet 1 formed as the rectangular heat insulation body which the front surface opened, the outer door 2 and the inner door 3 provided in the front surface, and the main body cabinet 1 of FIG. The interior is divided into two upper and lower sections by the bottom plate 1a, and the upper portion is partitioned by, for example, two heat insulating partition plates 4, for example, three independent product storages 5a, 5b, 5c and the lower portion straddling the bottom plate 1a It is comprised by the machine room 10 which accommodates the cooling / heating unit 8 which cools and heats a warehouse.
More specifically, the outer door 2 is for opening and closing the front opening of the main body cabinet 1, and the inner door 3 is for opening and closing the front surfaces of the commodity storages 5a, 5b, and 5c. It has a heat insulator inside and keeps the products inside. The product storage 5a, 5b, 5c is for storing the product W such as a canned beverage or a beverage containing a plastic bottle while maintaining the desired temperature, and the capacity of the storage is 5a, 5c, 5b. It is small in order of. The heat insulating partition plate 4 includes a wall body 4a of polystyrene foam coated with resin on both surfaces, a hollow portion provided in the lower portion thereof, a vacuum heat insulating material 4b inserted therein, and a thin steel plate 4c on both surfaces thereof. It is adhered to 4a.
The product storage 5a, 5b, 5c is provided with a product storage rack 6, a carry-out mechanism 61, and a product carry-out chute 62, respectively. The product storage rack 6 is for storing the products W in a manner of being arranged along the vertical direction. The carry-out mechanism 61 is provided at the lower part of the product storage rack 6, and is used to carry out the products W at the bottom of the product group stored in the product storage rack 6 one by one. The product carry-out chute 62 is for guiding the product W carried out from the carry-out mechanism 61 to the product take-out port 3b, and has a large number of holes formed on its surface so that the cooling and heating air can pass therethrough. is there.

The cooling / heating unit 8 connects a compressor 81, a condenser 82, and an expansion valve 83 disposed in the machine room 10 across the bottom plate 1 a with a cooler 84 and a refrigerant pipe in the warehouse. A heater 85 and a fan 86 are installed on a wind tunnel 87 that is a cover case of the cooler 84 in the front, and in accordance with the sales mode, cold air or hot air is circulated in the cabinet to circulate in the product storage rack 6. The product W is cooled or heated.
The rear duct 7 is connected to the wind tunnel 87 of the cooler 84 and is laid on the rear panel of the cabinet 1, and the upper end and middle stage thereof are open toward the interior. The height of the duct 7 is fixedly set in accordance with the height of the product storage rack 6, and the suction port 70 a that opens at the upper end of the duct 7 circulates in the entire area of the product storage rack 6 so that the rear surface of the product circulation rack 6 The height is set so as to be sucked into the duct 7. Further, the middle suction port 70 b is set at a height position such that the circulating air in the warehouse flows around the lower area of the product storage rack 6. Then, as described later, the flapper opening / closing means 79 can be switched to the partial cooling heating shown in FIG. 1 and the whole cooling shown in FIG.

The structure of the rear duct 7 will be described in more detail. 3 to 5, the duct 7 on the back is configured to have a vertically long and U-shaped steel plate duct body 70 and a flapper opening / closing means 79.
The duct body 70 has a suction port 70a at the top, a suction port 70b at the middle, an opening (see FIGS. 1 and 2) of the outflow part 70c at the bottom, and a long hole 70d that is inserted into and engaged with the flapper 71 at the top. , 70d. Below the long holes 70d and 70d, stoppers 70e and 70e for securing the opening area of the upper suction port 70a and the side edge of the duct main body 70 on the rod 72 side are the vertical movements of the rod 72. The guide surface 70f that guides the tube extends inside the duct.
The flapper opening / closing means 79 includes a flapper 71 that opens and closes the upper suction port 70a, an operation unit 73 that operates the flapper 71, and a rod 72 that transmits the operation of the operation unit 73 to the flapper 71. .

The flapper 71 includes a flat plate-like main body 71a that opens and closes the upper suction port 70a, bent portions 71b and 71b that are bent twice at the lower end of the main body 71a, and a claw portion 71c that extends from the bent portion 71b, 71c. A locking piece 71d that engages with the rod 72 is extended at an acute angle toward the inside of the duct 7 at the lower end of the side of the flapper body 71a.
The bent portions 71b and 71b and the claw portions 71c and 71c are inserted into and engaged with the long holes 70d of the duct body 70 to form a hinge structure, and the flapper 71 is rotatable around the bent portions 71b and 71b.
The rod 72 is an elongated member having a U-shaped cross section formed of a web 72a whose main body is elongated in the height direction, a front flange 72b and a rear flange 72c extending from both end faces thereof. The upper end of the web 72a has a trapezoidal shape. The rod 72 includes a locking piece 72d extending from the front flange 72b in a manner along the trapezoidal slope of the upper end of the web 72a, and a locking extending bent from the upper end of the web 72a toward the inside of the duct. And a piece 72e. The front flange 72b and the rear flange 72c are in contact with the duct body 70 and the guide surface 70f, respectively, and serve as guides in the depth direction when the rod 72 moves in the vertical direction. The locking piece 72d is for abutting engagement with the flapper main body 71a to open the flapper main body 71a, and the locking piece 72e is engaged with the locking piece 71d of the flapper 71 to close the flapper main body 71a. It is for making it complete.

The operation portion 73 is a plate-like member formed in a U-shaped cross section (the open portion faces upward) as shown in FIGS. 3 and 4, and an operation piece 73 a having one end connected to the rod 72. And a guide groove 74a and an operation groove 74b drilled in the duct body 70. Further, the operating portion 73 has a cutting screw 73b inserted through the guide groove 74a in the front plate of the operation piece 73a having a U-shaped cross section, and the front plate has the operation groove 74b. An operation hole 73c is perforated facing the opening. The operation hole 73c has a hole diameter such that a driver or a ballpoint pen can be inserted.
The guide groove 74 a is for restricting the movement of the rod 72. The guide groove 74 a has an inverted J shape, the lower end of the inverted J defines the lower position of the rod 72, and the upper end of the inverted J is the rod 72. The upper position is defined.

The operation groove 74b is formed as a groove adjacent to the guide groove 74a and formed by connecting the outermost contours of the guide groove 74a. In the first embodiment, since the guide groove 74a has a reverse J-shape, the operation groove 74b has a P-shape hollowed out.
With such a configuration, if a hand is put with a ballpoint pen from the front of the vending machine and the rod 72 is set at the lowest position by the operation hole 73c of the operation unit 73, the flapper 71 is as shown in FIG. Then, the engaging piece 72e contacts the engaging piece 71d and presses the flapper body 71a against the back surface to close the upper suction port 70a. If the cooling / heating unit 8 of the vending machine is operated in this state, the cooled or heated air flows to the middle suction port 70b as shown by the arrow in FIG. As a result of the circulation, the partial cooling and heating are performed centering on the lower products to be sold immediately.

Further, when a large amount of sale is predicted, if the flapper 71 is set at the uppermost position by the operation hole 73c of the operation portion 73, the engagement piece 72d is connected to the back surface of the flapper main body 71a as shown in FIG. The flapper body 71a is rotated counterclockwise in the drawing to open the upper suction port 70a. If the cooling / heating unit 8 of the vending machine is operated in this state, the cooled or heated air is divided into the upper suction port 70a and the middle suction port 70b as shown by the arrows in FIG. Since the air flows, the air circulates throughout the product storage rack 6, and as a result, all the products stored in the product storage rack 6 are cooled and heated.
As described above, since the flapper opening / closing mechanism 79 is housed in the duct, it is not restricted by the wall surface of the vending machine. As a result, the vending machine using the inner box-less structure and the vacuum heat insulating material is used. A suitable energy saving effect can be obtained by performing partial cooling and heating. Moreover, since the entire system can be cooled and heated with a simple operation during mass sales, there is no need to miss a sales opportunity by continuing the sold-out display state due to insufficient cooling and heating of the product. Can operate vending machines.

In addition, since the flapper opening / closing mechanism 79 is housed in the duct, assembling and adjusting the duct on the production line of the vending machine after the duct is assembled and adjusted, assembly adjustment and operation adjustment on the line become unnecessary. The number of assembly steps is small and the cost is low. Further, since the flapper has a claw portion protruding from the upper edge portion or the lower edge portion and is inserted into and engaged with the long hole formed in the duct, it can be manufactured and assembled at low cost.
Moreover, since the operation part 73 is installed in the back | inner side of the vending machine, the operator who supplies the drink of vending machines, such as a part-time job, does not operate a lever accidentally. In addition, although the operation unit is installed on the back side of the vending machine, the operation groove 74b is formed with a groove larger than the guide groove 74a that regulates the rod 72, so that the degree of freedom in the operation range is high. Etc. can be easily operated from the front of the vending machine by putting the operation hole 73c in the hand.

Further, the guide groove 74a is positioned below the product carry-out chute 62, the operation groove 74b is located above the product carry-out chute 62, and the mark hole that appears and disappears by the operation of the operation unit 73 is operated on the operation groove 74b of the operation piece 73a. It may be provided at a position facing the opening. With this configuration, when the duct flapper is operated, the stepped screw 73b is not accidentally touched, so that malfunction can be prevented, and the operation state can be easily confirmed even in the operation on the back side of the vending machine by the mark hole. .
(Example 2)
An embodiment according to the third aspect of the present invention is shown as a second embodiment in FIGS. 6 is a side sectional view of the vending machine according to the second embodiment during a partial cooling operation, and FIG. 7 is a side sectional view of the vending machine according to the second embodiment during a whole cooling operation. FIG. 8 is a side sectional view of the vending machine according to the second embodiment at the time of further overall cooling operation. 9 is a partial cross-sectional perspective view of the vending machine according to the second embodiment. FIG. 10 is a partial cross-sectional perspective view showing the structure of the flapper opening / closing means in the vending machine of FIG. 9. FIG. During the cooling operation, (b) shows the operating state during the entire cooling operation, and (c) shows the operating state during the further entire cooling operation. FIGS. 11A and 11B are side views of the superstructure of FIG. 10, in which FIG. 11A shows an operation state during a partial cooling operation, FIG. 11B shows an operation state during a whole cooling operation, and FIG. FIGS. 12A and 12B are side views of the middle structure of FIG. 10, where FIG. 12A shows an operation state during a partial cooling operation, FIG. 12B shows an operation state during a whole cooling operation, and FIG.

The difference from the first embodiment is that a duct flap 7 is sucked by installing a middle flapper 75 that opens and closes at the suction port 70b in the central portion, and operating the operation portion in three stages in conjunction with the upper flapper 71. The point is that it changes in three stages. As a result, the partial cooling operation, the entire cooling operation, and the further entire cooling operation can be performed with a simple structure, and the operation can be performed more finely according to the sales situation of the vending machine. The difference in configuration is that an intermediate stage flapper 75 is installed in the flapper opening / closing means 79, and an operating portion 77 for engaging the rod 72 and the lever 76 in order to open and close the middle stage flapper 75 is operated in three stages. It is the point that was installed. Other configurations are substantially the same as those of the first embodiment, and thus the description thereof is omitted.
As shown in FIGS. 10 and 12, the middle flapper 75 includes a flat plate-like main body 75a that opens and closes the middle suction port 70b, and bent portions 75b and 75b that are bent twice at the upper end of the main body 75a. Claw portions 75c and 75c extending from the portion 75b are provided. A locking piece 75d that engages with the lever 76 is extended at an acute angle toward the inside of the duct 7 at the lower end of the side portion of the flapper body 75a.

The bent portions 75b and 75b and the claw portions 75c and 75c are inserted and engaged with a long hole 70g drilled in the duct body 70 to form a hinge structure, and the flapper 75 is rotatable around the bent portions 75b and 75b. Yes.
The lever 76 is a plate-like member bent into a Z shape, and is engaged with a lever main body 76 a, a support shaft 76 b that pivotally supports the side surface of the duct main body 70, and an engagement end 76 c that engages with an engagement piece 75 d of the intermediate flapper 75. The locking piece 76d is engaged with the rear flange surface 72c of the rod 72. The web 72a of the rod 72 is provided with an escape groove 72g of the support shaft 76b in the movement of the rod 72, and an engagement hole 72f that engages with the locking piece 76d is formed in the rear flange surface 72c. A relief hole 70h is formed in the guide surface 70f as a relief hole.
The lever 76 is engaged with the middle flapper 75 and the rod 72 as described below. That is, when the rod 72 is in the lower stage or the middle stage, as shown in FIGS. 12 (a) and 12 (b), the locking piece 76d abuts against the flange surface 72c to hold the engaging piece 76c horizontally. The joining piece 76c locks the engaging piece 75d and holds the middle flapper main body 75a in an inclined state, thereby opening the middle suction port 70b. When the rod 72 is at the upper end, as shown in FIG. 12C, the locking piece 76d is separated from the flange surface 72c and is inserted into the engaging hole 72f, so that the engaging piece 76c is inclined downward. At this time, the engagement piece 76c and the engagement piece 75b are separated from each other, and the middle flapper body 75a is rotated to the vertical position by its own weight, thereby closing the middle suction port 70b.

Similar to the first embodiment, the operation unit 77 includes an operation piece 73, a guide groove 78a, and an operation groove 78b.
The guide groove 78a is for restricting the movement of the rod 72. The guide groove 78a has an F shape, the lower end of the F shape defines the lower position of the rod 72, and the second side of the F shape is the middle stage. The first side of the F shape defines the upper position of the rod 72.
The operation groove 78b is configured by a groove having an aspect formed adjacent to the guide groove 78a and connecting the outermost shape of the guide groove 78a. In the second embodiment, since the guide groove 77a has an F-shape, the operation groove 78b has a P-shape that is hollowed out.
In this configuration, when the operation piece 73 is set at the lower position, the upper flapper 71 presses the flapper main body 71a against the back surface with the engagement piece 72e coming into contact with the engagement piece 71d as shown in FIG. The upper suction port 70a is closed. In the middle flapper 75, as shown in FIG. 12A, the engagement piece 76c abuts against the engagement piece 75d and presses the back surface 75a to open the middle suction port 70b. If the cooling / heating unit 8 of the vending machine is operated in this state, the cooled or heated air flows to the middle suction port 70b as shown by the arrow in FIG. As a result of the circulation, the partial cooling and heating are performed centering on the lower products to be sold immediately.

Further, when a large amount of sales is predicted, if the operation piece 73 is set at the middle position, the upper flapper 71 is brought into contact with the back surface of the flapper main body 71a as shown in FIG. The flapper body 71a is rotated counterclockwise in the figure to open the upper suction port 70a. Further, since the middle flapper 75 is maintained at the position shown in FIG. 12B, the middle suction port 70b is maintained in the open state. If the cooling / heating unit 8 of the vending machine is operated in this state, the air cooled or heated as shown by the arrow in FIG. 7 flows into the upper suction port 70a and passes through both ends of the middle flapper 75. And the flow flowing into the middle suction port 70b, the air circulates throughout the product storage rack 6. As a result, all the products stored in the product storage rack 6 are cooled. , Heated.
Further, when a larger amount of sales is predicted, if the operation piece 73 is operated and the operation piece 73 is set at the upper position, the upper flapper 71 is maintained at the position shown in FIG. The upper suction port 70a is maintained in an open state. In the middle flapper 75, as shown in FIG. 12 (c), the locking piece 76d is separated from the slide surface 72c, the engagement piece 76c and the engagement piece 75b are also separated, and the middle flapper 75 is suspended by its own weight, The middle suction port 70b is closed. If the cooling / heating unit 8 of the vending machine is operated in this state, the cooled or heated air flows only to the upper suction port 70a as shown by the arrow in FIG. Since the entire inside of the container is circulated, further cooling and heating are further performed.

  Therefore, in addition to the effects of the first embodiment described above, in the second embodiment, the flapper opening / closing means 79 has two flappers 71 and a middle flapper 75. Since the flapper 71 and the middle flapper 75 can be selectively opened and closed, the administrator of the vending machine can appropriately perform partial cooling and overall cooling in three stages in consideration of the sales situation of the product. This makes it possible to obtain a suitable energy saving effect, and it becomes easier to deal with mass sales.

  As described above, the present invention is useful, for example, as a cooling device and a vending machine for cooling the internal atmosphere of a heat insulating housing.

FIG. 1 is a side sectional view of the vending machine according to the first embodiment during a partial cooling operation. FIG. 2 is a side cross-sectional view of the vending machine according to the first embodiment during the entire cooling operation. FIG. 3 is a perspective view of a partial cross section of the vending machine according to the first embodiment. FIG. 4 is a partial cross-sectional perspective view showing the structure of the flapper opening / closing means in the vending machine of FIG. 3, wherein (a) shows the operating state during the partial cooling operation, and (b) shows the operating state during the entire cooling operation. 5A and 5B are side views of the superstructure of FIG. 4, where FIG. 5A shows an operation state during a partial cooling operation, and FIG. 5B shows an operation state during a whole cooling operation. FIG. 6 is a side sectional view of the automatic vending machine according to the second embodiment during a partial cooling operation. FIG. 7 is a side sectional view of the vending machine according to the second embodiment during the entire cooling operation. FIG. 8 is a side sectional view of the vending machine according to the second embodiment at the time of further overall cooling operation. FIG. 9 is a perspective view of a partial cross section of the vending machine according to the second embodiment. FIG. 10 is a partial cross-sectional perspective view showing the structure of the flapper opening / closing means in the vending machine of FIG. 9, wherein (a) is a partial cooling operation, (b) is a total cooling operation, and (c) is a further portion. The operating state during the entire cooling operation is shown. FIGS. 11A and 11B are side views of the superstructure of FIG. 10, in which FIG. 11A shows an operation state during a partial cooling operation, FIG. 11B shows an operation state during a whole cooling operation, and FIG. FIGS. 12A and 12B are side views of the middle structure of FIG. 10, where FIG. 12A shows an operation state during a partial cooling operation, FIG. 12B shows an operation state during a whole cooling operation, and FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cabinet 4 Heat insulation partition plate 4b Vacuum heat insulating material 6 Merchandise storage rack 7 Duct 8 Cooling / heating unit 62 Shooter 70 Duct body 70a Suction port 70b Suction port 70d Long hole 70g Long hole 71 Flapper 71a Flapper body 71b Bending part 71c Claw part 72 Rod 73 Operation portion 74a Guide groove 74b Operation groove 75 Middle flapper 75 Flapper 75a Flapper body 75b Bending portion 75c Claw portion 76 Lever 77 Operation portion 78a Guide groove 78b Operation groove

Claims (4)

A product storage rack that stores products stored side by side in the cabinet's cabinet vertically according to the sales order, and cools the product by circulating cold air or warm air in the cabinet according to the sales mode. Or a cooling / heating unit with a fan for heating, and a duct having a flapper opening / closing means that opens and closes a suction port for circulating air that is located on the rear face of the cooling / heating unit connected to the wind tunnel. In the vending machine,
The flapper opening and closing means has a flapper, an operation part for manually opening and closing the flapper, and a rod for connecting the flapper and the operation part. The flapper is housed in a duct and assembled integrally with the duct. A vending machine having a guide groove for regulating a rod and an operation groove for moving the rod up and down.     2. The vending machine according to claim 1, wherein the guide groove has an inverted J shape, and the operation groove is formed by connecting an outermost shape of the guide groove.   The automatic flap according to claim 1 or 2, wherein the flapper has a claw protruding from an upper edge or a lower edge, and the claw piece is inserted into and engaged with a hole formed in the duct. Vending machine. 4. The flapper opening / closing means has a plurality of flappers, and opens and closes the plurality of flappers selectively in conjunction with one rod and an operation unit. 5. vending machine.

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