JPS5919395B2 - vending machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vending machine that heats and sells items, and provides a vending machine that can quickly heat-process and sell canned coffee, milk, or the like.

Conventionally, this type of heating device for vending machines has adopted a so-called dielectric heating method that uses a microwave oscillator, so it can be used to heat items such as canned coffee or milk that use metal containers. I couldn't.

The present invention employs an induction heating method as a heating device and is capable of efficiently and extremely quickly heating articles using metal containers, thereby eliminating the drawbacks seen in the conventional vending machines.

Hereinafter, the present invention will be described with reference to the accompanying drawings showing one embodiment thereof. In the figure, reference numeral 1 denotes a vending machine main body, which stores articles such as canned υ coffee and milk, and is equipped with a well-known storage chamber 2 and an article supply device 3 for supplying the articles one by one.

Reference numeral 4 denotes a cooling device, which cools and preserves the articles in the storage chamber 2.

Reference numeral 5 denotes an outer door 5 that is opened when storing articles in the storage room 2. A push button switch 5a for operating the article supply device 3 and an article sales port 6 are provided on the front surface of the outer door 5, which is opened when storing articles in the storage room 2, and a coin processing mechanism is provided inside. is provided.

5' closes the front opening of the storage room 2 and closes the outer door 5.
This is a heat-insulating inner door installed on the inner surface of the

T is an article heating device located at the lower part of the inner door 5' and below the article outlet 8 of the storage room 2, and is wound in a cylindrical shape so that the upper part is sparse and the lower part is dense. The induction heating coil 10 is formed into a cylindrical body by integrally molding the outer periphery of the induction heating coil 10 with epoxy resin 9, and the induction heating coil 10 is attached in close contact with the outer periphery of the heating coil 10, and is made of high resistivity material such as ferrite. a ferromagnetic material 11; a support plate portion 12 that moves up and down the inner center of the coil 10 and is inclined toward one side D at the upper end;
The operating rod 13 is vertically controlled via a rotary plate 15 rotated by the drive of a motor 14 and connecting rods 16, 16 connected to the rotary plate 15. . Here, since the upper end of the molded part of the induction heating coil 10 is formed in a tapered shape, the delivery of the article is ensured, and the length of the molded part of the coil 10 is set to a height slightly lower than the height of the article. This prevents the upper part of the delivered product from reaching an abnormal heating temperature. Reference numeral 17 denotes an article guiding rod located below the discharge port 8 and parallel to the support plate portion 12 of the operating rod 13. The other end of the article guiding rod 17 is connected to the connecting rod 16. When driven by the motor 14, the operating rod 13 and the like swing in the vertical direction, and cooperate with the support plate portion 12 of the operating rod 13 in a see-saw shape.

Here, the article heating device 7, the motor 14, the rotary plate 15 connecting rods 16, 16, the article guide rod 17, etc. are each attached to a frame 18 forming an article ejection window 8' corresponding to the article ejection port 8. , is constructed as an independent unit, and the frame body 18 is attached to the lower part of the outer surface of the inner door 5'. Reference numeral 19 is a pedestal for articles provided in the frame 18 at a position near the article sales outlet 6.

The operation of the above configuration will be explained.

First, a predetermined coin is inserted into the coil slot of the vending machine main body 1 and the selection push button switch 5a is pressed. Here, when the position of a cold article (canned coffee) that does not require heating is pressed on the plurality of selection buttons, the article supply device 3 in the storage room 2 is activated, and one cooled article is delivered to the article outlet. 8 to the discharge window 8' of the frame 18. At this time, the operating rod 13 and the guiding rod 17 of the heating device 7 are in the state shown by the chain line in FIG. The article rolls directly on the rod 17 in the direction of the article holder 19 and falls. Therefore, the cooled article can be taken out from the sales outlet 6. Next, if you want to heat the article to obtain a warm article, press the push button switch 5a at that position, and the article supply device 3 in the storage room 2 will operate as described above, and one cooled article will be discharged from the discharge port 8. At the same time, the motor 14 is driven to rotate the rotary plate 15 in the direction of the arrow in FIG. The induction heating coil 10 is pushed down to the lowest position to stop driving the motor 14.

Furthermore, the article guiding rod 17 also moves in the opposite direction of the arrow in FIG. 3 in conjunction with the connecting rod 16 and stops above. Therefore, the articles led out from the discharge port 8 are guided by the article guiding rod 17 and stored inside the epoxy resin cylinder 9 of the induction heating coil 10 from the upper surface opening in the longitudinal direction. At this time, the induction heating coil 1 is turned on by a switch (not shown) or the like.
When it is confirmed that the item is stored in 0, the timer (
(not shown) is activated to energize the induction heating coil 10 for a predetermined period of time, and magnetic lines of force alternating at high frequencies of the lube connecting the inside and outside of the coil 10 are generated. All of the magnetic field lines on the inside converge on the object and heat it due to eddy currents caused by electromagnetic induction. At this time, all of the magnetic lines of force on the outside pass through the ferrite plate 11 and do not heat metal structures such as the outer door 2. Furthermore, the article is heated more strongly from the bottom, and is heated substantially uniformly over the entire upper and lower circumferences due to heat movement (convection) inside the article. When the heating time has elapsed,
The timer disconnects the current to the induction heating coil 10 and drives the motor 14 again, so that the operating rod 1
Push 3 upwards. At the same time, the article guide rod 17 is lowered to guide the heated articles from the upper opening of the induction heating coil 10 toward the article holder 19, so that the sales outlet 6
It can be removed as a warm heated item from Therefore,
Since the coil 10 is dimolded with epoxy resin, when an article is stored in the heating coil 10, the heating coil 10 will not be damaged even if it hits the coil 10 directly, and the coil pitch will be shifted and the article will not be damaged. There is no change in heating distribution.

Furthermore, since the article is heated sequentially from the bottom to the top and stirred by thermal convection, the inside is heated uniformly without uneven heating. Further, the heating coil 10 includes a ferrite plate 1
1, only the internal articles are heated, and the heating is performed safely and in an extremely short time without adversely affecting the human body which adversely affects the surrounding electric components, door body 5, etc. Then, the heated articles are pushed upward by the operating rod 13 and discharged to the sales outlet 6, so that the space between the outlet 7 of the storage chamber 2 and the article heating device 8 is reduced, and the content volume of the storage chamber 2 is reduced. Moreover, by stopping the operating rod 13 above or below the induction heating coil 10, the support plate portion 12 of the operating rod 13 can release the article in a heated state or not. In addition, an induction rod 17 is provided near the article heating device 8 to move up and down between the top opening of the article heating device 8 and the article discharge port 7 of the storage chamber 2. By doing so, it is possible to more reliably select whether or not to heat the goods to guide them to the sales outlet 6. As is clear from the above embodiments, the vending machine of the present invention is provided with a main body storage chamber for storing articles and supplying the articles one by one in the vending machine main body, and an article discharge port of the main body storage chamber. Nearby is a cylindrical induction heating coil with an open top, which is loosely wound at the top and tightly wound at the bottom and integrally molded with a resin material such as epoxy resin, and a cylindrical induction heating coil with an opening on the top surface, which is provided on the outer peripheral surface of this heating coil. The heating device is made of a ferromagnetic material with a high resistivity such as ferrite, and has a support plate portion at the upper end and an operating rod that moves up and down inside the induction heating coil to store and discharge articles. The device is further provided with an article guide rod for discharging the articles discharged from the heating device to the discharge port, and since the article is heated by induction heating, it is possible to heat canned beverages. Heating is performed by a heating coil that is sparse at the top and dense at the bottom, so the entire article can be heated quickly and uniformly by utilizing heat convection that moves from the bottom to the top. Since it is integrally molded, it protects against impact when storing items, and without changing heating capacity, stable heating capacity is always obtained, stabilizing quality, and improving product guidance. This device has various advantages, such as being extremely convenient since the product can also be ejected using the rod, allowing the product to be sold in a series of operations.

[Brief explanation of the drawing]

Fig. 1 is a front view of a vending machine according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line H-H in Fig. 1, and Fig. 3 is an enlarged view of the main parts taken along the - line in Fig. 2. FIG. 1...Hakudo vending machine body, 2...Storage room,
7... Heating device, 8... Goods discharge port,
9... Epoxy resin, 10... Heating coil, 11... Ferromagnetic material, 12... Support plate portion, 13... Operation Rod, 17... Article guiding rod.

Claims (1)

[Claims] 1. A main body storage chamber is provided in the vending machine main body to store articles and supply the articles one by one, and near the article discharge port of the main body storage chamber, the upper part is loosely wound and the lower part is tightly wound, and an epoxy resin is provided. A cylindrical induction heating coil with an open top surface integrally molded with a resin material such as resin, a ferromagnetic material with high resistivity such as ferrite provided on the outer peripheral surface of this heating coil, A heating device is provided with a support plate portion at the upper end and an operating rod that moves up and down inside the induction heating coil to store and discharge articles, and further includes an opening on the top surface of the heating device and an article discharge port. and an article guiding rod that is provided between the heating device and the article guide rod that moves up and down to discharge articles discharged from the heating device to the discharge port.