JP2010250609A - Vending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vending machine which reduces power consumption of the same, by restraining heat propagation along the surface of an inner door from a heating chamber to a cooling chamber, using a simple structure. <P>SOLUTION: The vending machine is equipped with an insulated inner door and an outside door at the front side of a body cabinet of an insulated housing, wherein product storing chambers for cooling and heating are formed in divisions. The inner door includes a door board which is made of heat insulating material board; a metal outer frame which is firmly fixed to the four edges around the inner door board; and a metal back plate which covers a product exit at door board surface of the product-storing chamber side. Heat propagation along the surface of the inner door is restrained, by dividing the back plate so as to confront the product storing chambers and by firmly fixing the back plate to the door board, while set apart from the lower part of the metal frame. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vending machine that sells cans, bottles, and plastic bottle products, and more particularly to the structure of a heat insulating inner door disposed on the front surface of the cabinet.

Vending machines that sell products such as canned beverages, bottled beverages, and plastic bottled beverages are widely used. Such vending machines have, for example, three product storage rooms, The product storage rooms are individually temperature controlled and cooled or heated for sale. A heat insulating inner door is installed on the front surface of the product storage room, and shields the heat or heat of the product storage room that has been cooled or heated from flowing into or out of the product storage room.
The heat-insulating inner door adopts a resin board in which the heat insulating material inside the main body is molded in advance instead of resin foam molding in order to facilitate decomposition and improve recyclability, and this board uses a steel plate front plate, A combination of a reinforcing frame, a shutter for a product carry-out port, a shutter frame, and the like is known (see, for example, Patent Document 1).
In this configuration, since the product that is rolled and conveyed toward the shutter of the product carry-out port may sometimes go off the track and collide with the back side of the heat-insulating inner door, as shown in FIGS. 5 and 6, the shutters 33a, 33b, A back plate 35 of a thin steel plate is fixed to a resin board (door body) 31 so as to surround the periphery of 33c. Specifically, the heat insulating inner door 30bb has a front plate (not shown) inserted in front of the resin board 31, and the resin board 31 has a U-shaped upper frame 32a, side frames 32b, 32b, It is configured to be fitted with a frame 32c and mounted with shutters 33a, 33b, 33c on the lower part of the resin board 31. A back plate 35 of a thin steel plate is fixed to the resin board 31 with screws 39 so as to surround the shutters 33a, 33b, and 33c on the back surface of the resin board 31. The back plate 35 is provided with mounting holes 34a, 34b, 34c for inserting the shutters 33a, 33b, 33c, and in two rows in a staggered manner at positions facing the partition wall and bottom plate of each product storage chamber. A thermal brake composed of the perforated long hole 36 is formed. The heat of the product storage chamber heated by the thermal brake is suppressed from flowing into the product storage chamber cooled along the back surface of the inner door 30bb.

JP 2002-216225 A

However, even with this type of vending machine, in the current situation where there is a strong demand for Co2 reduction and energy saving, the structure is not sufficient. In addition, in a vending machine that accommodates a large number of products having different dimensions, a plurality of product storage racks suitable for a large number of products are combined and placed in each product storage room. There are many things with different arrangements. As a result, a large number of molds for the back plate of the heat-insulating inner door are required, which contributes to an increase in cost.
In view of the above circumstances, an object of the present invention is to provide a vending machine capable of reducing power consumption by suppressing heat transfer from a heating chamber to a cooling chamber with a simple structure.

In order to achieve the above object, a vending machine according to claim 1 of the present invention comprises a heat insulating inner door on the front surface of a main body cabinet that becomes a heat insulating casing in which a product storage chamber for cooling and heating is partitioned, and A vending machine with an outer door,
The inner door is covered with a door plate made of a heat insulating material board, a metal outer frame fixed to four sides around the door plate, and the product carry-out port on the surface of the door plate on the product storage chamber side. In a vending machine composed of a metal back plate,
The back plate is formed so as to be divided so as to face the product storage chamber and to be separated from the lower outer frame of the metal outer frame and fixed to the door plate.
The vending machine according to claim 2 of the present invention is the vending machine according to claim 1, wherein the back plate is a combination of a U-shaped plate, a rectangular plate, and an L-shaped plate. It is comprised so that it may cover.

The vending machine according to claim 1 according to the present invention is configured such that the back plate is divided so as to face the commodity storage chamber, and is separated from a lower outer frame of the metal outer frame to be a door plate. By forming it so that it adheres, the movement of the heat | fever from the heated goods storage chamber to the cooled goods storage room can be suppressed, and power consumption can be reduced. Furthermore, by dividing the back plate, it is not necessary to have a mold for each type of vending machine, so that the manufacturing cost can be reduced.
The vending machine according to claim 2 according to the present invention has a simple shape by combining the back plate with a U-shaped plate, a rectangular plate, and an L-shaped plate so as to cover the product carry-out port. As a result, the manufacturing cost can be further reduced.

It is a schematic diagram which shows the vending machine to which the inner door concerning the Example of this invention is applied. (A) is the top view which looked at the inner door from the goods storage room side. (B) is A section sectional drawing of (a). It is a lineblock diagram showing the back board concerning the example of the present invention. It is a block diagram which shows the back plate concerning another Example of this invention. It is the top view which looked at the inner door of the prior art from the goods storage room side. It is a block diagram which shows the back plate of the inner door of the prior art shown in FIG.

Exemplary embodiments of an inner door of a vending machine according to 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.
In these drawings, the vending machine has a main body cabinet 10 formed as a rectangular heat insulator having an open front surface, an outer door 20 and an inner door 30 provided on the front surface, and an interior of the main body cabinet 10 in two directions. The bottom plate 11 is partitioned and formed at the stage, and the upper part is cooled by, for example, three independent product storage chambers 40a, 40b, and 40c partitioned by two heat insulating partition plates 40w, and the lower part of the product storage chambers 40a, 40b, and 40c is cooled or A machine room 50 for housing a cooling / heating unit 60 for heating and a drain water treatment device 70 for treating drain water, and an inside of the outer door 20 are automatically provided by temperature sensors in the product storage rooms 40a, 40b, 40c. And control means 100 for controlling the cooling and heating operation of the vending machine.

More specifically, the outer door 20 is used to open and close the front opening of the main body cabinet 10 and is not shown in the figure. Product display room, selection button for selecting the product to be sold, money slot for inserting money, product outlet 21 for taking out the paid-out product, etc. Is arranged.
The product storage rooms 40a, 40, 40 are for storing products such as canned beverages and beverages in plastic bottles while maintaining the desired temperature, and the capacity of the storage is the product storage chambers 40c, 40a. , 40b are distributed in a large manner in the order. In the product storage chambers 40a, 40b, and 40c, product storage racks R each having a product carry-out mechanism for storing products in a vertically aligned manner and discharging the products one by one in response to a sales signal are provided. Each has two, one, and three rows of product storage racks R, and has product discharge chutes 42a, 42b, and 42c for discharging discharged products to the sales outlet 21 of the outer door.

The machine room 50 is a box-shaped structure having openings on the front and back sides, and houses a cooling / heating unit 60 and a drain water treatment device 70 therein. The machine room 50 is formed with an air passage that communicates with the vent hole 22 drilled in the lower portion of the outer door 20 and extends from the front opening to the rear opening.
The cooling / heating unit 60 is installed in front of the evaporator, a cooling unit in which a compressor, a condenser, and an expansion valve constituting the refrigeration cycle, and an evaporator in the warehouse straddling the bottom plate 11 are connected by a refrigerant pipe. The product is composed of a heating unit using a heater, and cools or heats the product in the product storage rack R by circulating air that has been cooled or heated in the warehouse according to the sales mode.
The drain water treatment device 70 has an evaporation pipe (not shown) as a partial pipe of the evaporating dish 71 and the cooling / heating unit 60, and guides the drain water defrosted from the evaporator to the evaporating dish 71 through the pipe. It is evaporated by the heat of the evaporation pipe. Further, the drain water treatment device 70 has a receiving port 72 on the front surface side, and the condensed water condensed on the inner door 30b is guided to the evaporating dish 71 through the receiving port 72 by the eaves 32dt and evaporated by the evaporating pipe. It also goes.

The inner door 30 opens and closes the front surfaces of the product storage chambers 40a, 40b, and 40c to keep the products in the storage chamber warm, and is a box-shaped structure that is divided into two upper and lower stages and has a heat insulator inside. Yes, it is composed of an upper inner door 30a and a lower inner door 30b. The upper inner door 30a is pivoted at one end to the outer door 20, and the other end is engaged with the outer door 20, and the upper inner door 30a is opened at the same time as the outer door 20 is opened to facilitate replenishment of goods. It is to make. The lower inner door 30b is closed when one end pivots to the main body cabinet 10 with hinge metal fittings 37a and 37a and the other end is hooked to the main body cabinet 10 with a latch 37b, and the outer door 20 is opened. In this state, it is possible to prevent the cooling air or heated air in the product storage chambers 40a, 40b, and 40c from flowing out, and can be opened as needed during maintenance of the storage chamber.
As shown in FIG. 2, the inner door 30 b has a steel plate front plate 31 a inserted in front of a resin board (door plate) 31. 32b, 32b and the lower frame 32c are fitted, and shutters 33a, 33b, 33c, which are product carry-out ports, are attached to the lower part of the resin board 31, and the back surface of the resin board 31 is fixed so as to cover the periphery of the product carry-out port. It has back plates 38a, 38b, and 38c.

A rubber packing 32p is provided on the upper portion of the upper frame 32a to shield a gap formed between the upper inner door 30a and the lower inner door 30b when the upper inner door 30a is closed.
A thermal brake is formed in the upper part of the lower frame 32d on the commodity storage chamber side. The thermal brake is composed of long holes 36 that are perforated in two rows in a horizontal direction. The heat of the product storage chamber heated by the thermal brake is suppressed from flowing into the product storage chamber cooled along the surface of the lower frame 32d.
In addition, a flange 32dt inclined to the right side from the front is formed at the lower part of the lower frame 32d. A receiving port 72 of the drain treatment device 70 is opened and installed below the right end of the bottle 32 dt, and condensed water condensed on the surface of the inner door 30 b passes through the bottle 32 dt and the receiving port 72 and is inside the evaporating dish 71. To be introduced. Thus, since the lower frame 32d also serves as the collar 32dt, the inner door 30b can be manufactured at a lower cost.

The shutters 33a, 33b, and 33c are surrounded by shutter frames 33af, 33bf, and 33cf, have a hinge structure at the top, and are usually suspended in the vertical direction, and air between the product storage chambers 40a, 40b, and 40c and the outside. When the sale is performed, the product is rotated by a conveying motion of the sold product. The shutters 33a, 33b, and 33c are disposed in the horizontal direction of the lower part of the inner door 30b as appropriate, corresponding to the positions of the product storage chambers 40a, 40b, and 40c and the chutes 42a, 42b, and 42c installed in the lower part thereof. ing.
The back plates 38a, 38b, 38c face the product storage chambers 40a, 40b, 40c, are divided in the left-right direction with an interval approximately the same as the width of the partition plate 40w, and the lower frame 32d is also vertically The resin board 31 is fixed apart from the direction. As shown in FIG. 3, the back plate 38a facing the product storage chamber 40a in the right chamber having the largest opening area is a U-shaped sheet metal member. The back plate 38b facing the product storage chamber 40a of the left chamber having the largest opening area is also a U-shaped sheet metal member. The U-shaped back plates 38a, 38c have projections 38at, 38at, 38ct, 38ct so as to surround the shutter frames 33af, 33bf, 33cf, and the projections and the upper portions of the back plates 38a, 38c are screwed. It is fixed at 39. Further, notches 38ak and 38ck are provided between the lower frame 32d and the heat conduction resistance with the lower frame 32d is increased. The back plate 38b facing the product storage chamber 40b of the middle chamber having the smallest opening area is a thin sheet metal member having a rectangular shape.

When the cooling and heating operation of the vending machine is performed in such a configuration, for example, the left and middle chambers of the product storage chambers 40a and 40b are heated and the right chamber of the product storage chamber 40c is operated in the cooling mode. In this case, since the back plates 38a, 38b, 38c are separated and fixed, the heated air from the internal storages 40a, 40b is cooled in the other internal storage by the back plates 38a, 38b. Very little heat is transferred by heat conduction to the back plate 38c of 40c. Further, since the back plates 38a, 38b, and 38c are also isolated from the lower frame 32d, the heat from the product storage chambers 40a, 40b, and 40c is hardly transferred through the lower frame 32d. As a result, useless heat loss can be suppressed and power consumption can be reduced.
In addition, since the back plates 38a, 38b, and 38c are divided and fixed, even the types of vending machines having different arrangements of the shutters 33a, 33b, and 33c are fixed by changing the position in the same shape. Therefore, the manufacturing cost can be reduced as a result of not having many molds.

Moreover, the back plate structure of another Example is shown in FIG. In this embodiment, since the back plate 38d facing the commodity storage chamber 40c is substantially the same as the above-described embodiment, and the other parts are substantially the same, the description thereof is omitted.
The back plate 38d is an L-shaped thin sheet metal member, and has a projection 38dt on the right side of the outer periphery of the shutter frame 33cf and a notch 38dk between the lower frame 32d, and the projection 38dt. The upper part of the back plate 38d is fixed with screws 39. The U-shaped back plate 38a, the rectangular back plate 38b, and the L-shaped back plate 38d are combined to cover the shutters 33a, 33b, and 33c.
Thus, since the shapes of a U-shaped plate, a rectangular plate, and an L-shaped plate are simplified, the manufacturing cost can be further reduced in addition to the above effects.

  As described above, the present invention according to the present invention is suitable for vending machines that sell cans, bottles, and plastic bottle products by cooling and heating.

10 Main body cabinet 20 Outer door 30 Inner door 31 Resin board (door plate)
32a Upper frame 32b Side frame 32d Lower frame 32dt 樋 33a, 33b, 33c Shutter 35 Back plate 36 Long hole 38a, 38b, 38c, 38d Back plate 40a, 40b, 40c Product storage room 50 Machine room 60 Cooling / heating unit 70 Drain Processing device 62 Compressor 63 Condenser 64 Expander 100 Control device

Claims (2)

It is a vending machine equipped with a heat insulating inner door and an outer door on the front surface of a main body cabinet that becomes a heat insulating casing in which a product storage room for cooling and heating is partitioned,
The inner door is covered with a door plate made of a heat insulating material board, a metal outer frame fixed to four sides around the door plate, and the product carry-out port on the surface of the door plate on the product storage chamber side. In a vending machine composed of a metal back plate,
The vending machine is characterized in that the back plate is divided so as to face the product storage chamber, and is formed so as to be fixed to the door plate apart from the lower outer frame of the metal outer frame. Machine.   2. The vending machine according to claim 1, wherein the back plate is configured to cover the commodity outlet by combining a U-shaped plate, a rectangular plate, and an L-shaped plate.