JPS647428Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a beverage brewing device used in a beverage vending machine, and particularly relates to a cleaning mechanism for the beverage brewing device.

(Prior Art) First, the operation of a beverage vending machine will be described with reference to FIG.

When the power is turned on, water from the tap is supplied to the tank 2 by the water supply solenoid valve 1.

The supplied water is maintained at a specified water level by a float switch 3, and then energized by a heater 4 to boil it as hot water.

When you insert a coin and press the selection button, the motor is energized and the coffee raw materials are sent to the coffee shoot 5.
(You can choose between 6 cups of coffee and 7 cups of black tea).

Next, the brewer motor 8 rotates, and the cam 9 controls the brewer mechanism (brewer cartridge (extraction cup) 10, cylinder 11, piston 12).
works.

(A) While being pulled to the left in the figure, the brewer's carriage 10 receives the raw material (coffee or tea) from the coffee chute 5, then moves below the cylinder 11 and stops.

(a) The cylinder 11 descends and comes into close contact with the brewer carriage 10.

(C) The hot water supply solenoid valve 13 is energized and hot water is supplied into the cylinder 11.

(d) Coffee liquid etc. are extracted by the descent of the piston 12, and the coffee liquid is supplied to the mixing bowl 14.

(e) The sugar and cream motors operate, and sugar and cream are supplied to the mixing bowl 14 by the sugar canister 15 and cream canister 16, respectively.

(f) Coffee liquid and sugar in mixing bowl 14,
Cream is mixed and poured into cup 17.

(g) When the extraction is finished, the cylinder and piston 1
2 rises.

(H) The brewer's carriage 10 returns to the standby position.

(ke) The coffee grounds remaining in the brewer's carriage 10 are placed in the coffee grounds tray 18 just before the standby position.
be thrown away.

In addition, in the vending machine shown in Figure 5, tank 2
(including a float switch 3 and a heater 4), a brewer motor 8, a cam 9, a cylinder 11, a piston 12, and a hot water supply electromagnetic valve 13 constitute a hot water supply means.

As described above, the coffee grounds in the brewer's carriage 10 are disposed of in the coffee grounds receptacle 18, but the coffee grounds remain attached to the inner wall of the brewer's carriage 10. In order to remove the adhering coffee grounds, conventionally, for example, only hot water is supplied to the brewer's carriage 10 without supplying coffee raw materials for each extraction, and the beverage extraction device is
It is running in cycles. In other words, hot water solenoid valve 1
3 is opened, hot water is poured into the cylinder 11, and the cylinder 11 and piston 1 are driven by the brewer motor 8.
2 is lowered to push out hot water to wash away coffee grounds adhering to the brewer's carriage 10. The washed coffee grounds are then sent to a drainage bucket 20 via a cup tray 19.

Further, as a technique for removing coffee grounds (extraction grounds) adhering to a brewer's barrel or the like, a technique described in Japanese Utility Model Application Publication No. 148725/1983 is known.

(Problem to be solved by the invention) By the way, when supplying hot water to the brewer's carriage to clean the brewer's carriage as described above, hot water is simply poured into the brewer's carriage. There is a problem that the azaleas are not washed enough.

Also, when cleaning the brewer's carriage after each extraction, for example, approximately
If you use 100 c.c. of hot water and extract (sell) about 100 times a day, the amount of hot water used will be about 10. The capacity of the drain bucket provided in a vending machine is generally 10 to 20, so the capacity of the drain bucket is 1 to 2.
It gets full by the day. Therefore, the drain bucket must be cleaned every 1 to 2 days, and in some cases, the drain bucket overflows with sewage. Furthermore, since the above-mentioned cleaning operation is almost the same as the extraction operation, the time used for cleaning is longer.
Cleaning after each extraction is extremely disadvantageous in terms of beverage sales.

Taking this into consideration, if the brewer's cartridge is cleaned once a day, for example, in a vending machine that selects and extracts multiple different types of raw materials (for example, multiple brands of coffee and tea), A so-called transfer of taste, which is different from the original taste, occurs. Also, 1
If the brewer's barrel is washed once a day, it becomes extremely dirty, and bacteria tend to grow on the coffee grounds that adhere to it, especially in the summer, which poses a hygiene problem.

On the other hand, in the technique described in Japanese Utility Model Application Publication No. 59-148725, since the brewer's scum adhering to the brewer's carriage such as the filter unit is removed using high-pressure air, the brewer's scum adhering to the brewer's carriage can be sufficiently removed. However, with the technology described in Japanese Utility Model Application Publication No. 59-148725, not only is a compressed air supply source required, but the compressed air also scatters the extracted scum around the vending machine. becomes dirty and is extremely unsanitary.

The purpose of this invention is to prevent the drain bucket from becoming full in a short period of time even if the brewer's carriage is cleaned every time a beverage is brewed, and the purpose of this invention is to provide a beverage brewing device that can completely clean the brewer's carriage in a short period of time. Our goal is to provide the following.

Another object of the present invention is to provide a beverage brewing device that does not require any equipment such as a compressed air supply source and does not contaminate the inside of a vending machine with brewed dregs.

(Means for Solving the Problems) The present invention includes a brewing cup that moves in a predetermined direction from a standby position, and the brewing cup moves in the above-mentioned predetermined direction to receive beverage raw materials and a hot water bath to which tap water is supplied. A beverage brewing device in which hot water is injected from a supply means, a beverage is extracted from a beverage raw material, the beverage raw material after beverage extraction is discarded from the extraction cup, and the beverage extractor returns to a standby position. Above the extraction cup, there is a nozzle device in which a plurality of nozzles are disposed so as to face the upper surface and inner wall surface of the extraction cup, and a cover portion that covers the nozzle device and the extraction cup. This beverage brewing device is characterized in that tap water is force-fed to a nozzle device by a pump to wash a brewing cup.

(Function) In the present invention, tap water is force-fed from upstream of the hot water supply means to the nozzle device by a pump. When water is discharged from the nozzle portion of the nozzle device, the discharged water hits the upper surface and inner wall surface of the brewing cup with force, washing away the brewed dregs adhering to the inner wall surface. During cleaning, since water is discharged from the nozzle device, the brewing cup can be completely cleaned in a short time with a small amount of water. In addition, since the tap water is taken from upstream of the hot water supply means, there is no need for any equipment such as a compressed air supply source, and the discharged water that hits the top and inner walls is blocked by the cover, allowing vending machines to It will not scatter inside the aircraft.

(Example) The present invention will be explained below using examples.

The beverage brewing device according to the present invention will be described with reference to FIGS. 1 and 2. However, since everything other than the cleaning device (cleaning mechanism) is the same as the conventional beverage brewing device, the explanation will be omitted.

A hot water supply means is constituted by a hot water supply tank 2 (including a float switch and a heater (both not shown)), a brewer motor 8, a cam 9, a cylinder 11, a piston 12, and a hot water supply solenoid valve 13. It is connected to a water supply pipe 1a via a water supply solenoid valve 1.

Before the water supply solenoid valve 1, that is, upstream of the hot water supply means, a pump 21 is connected to the water supply pipe 1a via a pipe 21a, and this pump 22 is connected to a nozzle device 22 via a water supply pipe 21b. has been done.

As shown in FIG. 2, the nozzle device 22 includes a nozzle body 23 connected to a water pipe 21b with a flare nut 23a, and a nozzle plate 24 attached to the lower end surface of the nozzle body 23. As shown in the figure, a protrusion 23b extending in the radial direction is formed on the nozzle main body 23, and a nozzle fixing plate 2 is fixed at one end to the brewer main body 25.
A protrusion 23b is fixed to 6, whereby the nozzle main body 23 is supported by the brewer main body 25 via the nozzle fixing plate 26. Nozzle body part 2
3 is formed with a water supply channel 23c, and this water supply channel 23c is connected to a circular groove portion 23d of a predetermined radius formed on one end surface of the nozzle body portion 23.

As shown in Fig. 3, a plurality of nozzle holes are formed on the nozzle plate 24 on concentric circles (in Fig. 3, 4 nozzle holes are formed on the inner circle, 8 nozzle holes are formed on the outer circle,
A total of 12 nozzle holes 24a are formed). Further, as shown in FIG. 2, the nozzle holes provided on concentric circles are formed such that the outlet portion (discharge portion) 24c is located on the outer side in the radial direction than the inlet portion 24d. This nozzle plate 24 is fixed to one end surface of the nozzle body 23 with a set screw 28 via an O-ring 27. At this time, the entrance portions 24d of all nozzle holes are accommodated in the circular groove portions 23d.
When the brewer carriage 10 is in the standby position, the discharge portion 24c and the brewer carriage 10 correspond as shown. That is, the discharge part 24
c faces the upper surface (upper wall surface) and inner wall surface of the brewer's carriage 10.

As described above, the brewer's carriage 10 is pulled to the left, and after brewing the coffee liquid, dumps the coffee grounds into a coffee grounds receptacle (not shown in FIG. 1) just before the standby position, and returns to the standby position. When the brewer's carriage 10 returns to the standby position, the pump 21 is energized and pressurized water is vigorously discharged from the outlet of the nozzle device 22 to remove coffee grounds adhering to the inner wall and top surface of the brewer's carriage 10 into the drain bucket 20. Wash it off. In addition, as shown in FIG. 1, the nozzle device 2
A splash prevention cover 29 is disposed to cover the nozzle device 2 and the brewer carriage 10.
Pressure water from 2 is not applied to other mechanisms of the beverage brewing device. Further, a passage opening 29a through which the brewer's carriage 10 passes is provided on the left side surface of the splash prevention cover 29.

The cleaning water discharged from the above-mentioned nozzle device is 3~
The amount is as small as 4 c.c., so even if you wash the brewer's barrel every time you brew, the drain bucket will never be full. In addition, the nozzle device discharges cleaning water vigorously, and this cleaning water is placed so as to splash on the top and inner walls of the brewer's carriage, making it easy to clean away coffee grounds that have adhered to the brewer's carriage. can.

Next, a second embodiment will be described with reference to FIG.

In this second embodiment, a tank 2 (including a float switch and a heater), an extractor 31 (a brewer motor, a cam (not shown), a cylinder 11, a piston (not shown)), and a hot water supply solenoid valve 13 are used. A hot water supply means is constructed, and the tank 2 is connected to the water supply solenoid valve 1.
It is connected to the water supply pipe 1a via.

The coffee beans ground in the coffee mill 30 are sent to the brewer's carriage 10.
moves to the bottom of the cylinder 11. Hot water tank 2
Hot water is sent to the cylinder 11 , and coffee is extracted from the brewer's carriage 10 in the extractor 31 and sent to the mixing bowl 14 . Sugar and cream are supplied to the mixing bowl 14,
The coffee is supplied as hot coffee or iced coffee through the hot coffee supply passage 32 or the iced coffee supply passage 33. Switching between the hot coffee supply passage 32 and the iced coffee supply passage 33 is performed by a solenoid 34.

The iced coffee supply passage 33 is equipped with a cylindrical cooling tank 35.
A cooling pipe 36 (which may be S-shaped or coil-shaped) provided with cooling fins 36a is disposed inside, and the hot coffee passes through this cooling pipe 36. At this time, the solenoid valve 37 is opened, and the water in the reserve tank 38 is pumped into the cooling water tank 4 by driving the carbonator pump 39, which will be described later.
The water passes through a cooling pipe 40a installed in the tank 35, is sent to a cooling tank 35, undergoes heat exchange in the cooling tank 35, and returns to a reserve tank 38. On the other hand, an ice making device 41 is connected to the reserve tank 38, and water is sent from the ice making device 41 to the iced coffee cup.

In addition, in the above-mentioned vending machine, CO ₂ from the carbon dioxide gas (CO ₂ ) cylinder 42 is transferred to the carbonator 4.
Sent to 3. On the other hand, when the solenoid valve 37 is closed and the solenoid valve 44 is opened, the carbonator pump 39 pumps (approximately 10 kg/cm ² )
The water is injected into a carbonator 43 in the form of mist to produce carbonated water. The amount of carbonated water in the carbonator 43 is controlled by a float switch 43a. When the solenoid valve 45 is opened, carbonated water is forced into the cup by gas pressure. Further, concentrated syrup is stored in a syrup tank 46, and when a solenoid valve 47 is opened, it is pumped into the cup at CO ₂ pressure (4 kg/cm ² ). Further, the above-mentioned cooling water tank 40 is filled with cooling water, and is always maintained at 0° C. by a cooling unit 48. That is, the evaporator 4 of the cooling unit 48
Ice is attached to 8a to set the cooling water temperature to 0°C. This amount of ice is controlled by an ice sensor 49.

As shown in the figure, upstream of the hot water supply means, a carbonator pump 39 is connected to the water supply pipe 1a via a reserve tank 38, and a nozzle shown in FIG. 2 is connected to this carbonator pump 39 via a solenoid valve 50. A device 22 is connected. When the solenoid valve 50 is opened, cleaning water is discharged from the nozzle device 22 and the brewer carriage 10 is cleaned. In this way, in this embodiment, the carbonator pump 39 is connected to the nozzle device 22, so there is no need to provide a new pump.
Note that the cover 29 is not illustrated in the second embodiment.

(Effect of the invention) As explained above, in this invention, the nozzle device discharges the cleaning water toward the top surface and inner wall surface of the extraction cup, so the extraction cup can be completely cleaned in a short time with a small amount of water. can do.
In addition, since tap water from upstream of the hot water supply means is used, there is no need for equipment such as a compressed air supply source.
Moreover, since the washing water does not scatter from the brewing cup, the inside of the vending machine is not contaminated, making it extremely hygienic.

[Brief explanation of the drawing]

FIG. 1 is a diagram schematically showing an embodiment of a vending machine using a beverage extraction device according to the present invention, FIG. 2 is a side sectional view showing a nozzle device used in the beverage extraction device according to the invention, and FIG. Figure 4 shows a nozzle device from below, Figure 4 shows another embodiment of a vending machine using the beverage extraction device of the present invention, and Figure 5 schematically shows a conventional vending machine. It is. 1...Water supply solenoid valve, 2...Water supply tank, 5...
Coffee shoot, 8...Brewer motor, 9...
Cam, 10...Brewer cartridge, 11...Cylinder, 12...Piston, 13...Hot water solenoid valve, 14...Mixing bowl, 15...Sugar canister, 16...Cream canister, 17...
... Cup, 20 ... Drain bucket, 21 ... Pump, 22 ... Nozzle device, 23 ... Nozzle main body, 24 ... Nozzle plate, 25 ... Brewer main body,
26... Nozzle fixing plate, 27... O-ring, 2
8... Set screw, 29... Splash prevention cover, 30
... Coffee mill, 32 ... Hot coffee supply passage, 33 ... Iced coffee supply passage, 34 ... Solenoid, 35 ... Cooling tank, 38 ... Reserve tank, 39 ... Carbonator pump, 40
... Cooling water tank, 41 ... Ice making device, 42 ... Carbon dioxide gas cylinder, 43 ... Carbonator, 48 ... Cooling unit.

Claims (1)

[Scope of utility model registration request] a brewing cup that moves in a predetermined direction from a standby position; the brewing cup moves in the predetermined direction;
Hot water is injected from a hot water supply means to which tap water is supplied while receiving the beverage raw materials, extracting a beverage from the beverage raw materials, discarding the beverage raw materials after the beverage extraction from the extraction cup, and returning to the standby position. In the beverage brewing device, a nozzle device comprising a plurality of nozzle portions and disposed above the brewing cup at the standby position so that the plurality of nozzle portions face the upper surface and inner wall surface of the brewing cup; It has a cover part that covers the nozzle device and the extraction cup, and tap water is force-fed from upstream of the hot water supply means to the nozzle device by a pump to wash the extraction cup. Beverage extraction equipment.