JPS61259389A - Water feeder for cup type vending machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water supply device for a cup-type vending machine that sells hot and cold beverages.

Conventional technology In recent years, cup-type vending machines have become space-saving and soft drinks,
BACKGROUND OF THE INVENTION As powdered beverages become more flavorful, so-called hot-and-cold cup-type vending machines have been developed that provide cold and hot beverages in one machine.

Conventionally, the water supply device of this type of cup-type vending machine has had a structure as shown in FIG. 2, as shown in, for example, Japanese Patent Application Laid-Open No. 67-210267.

In FIG. 2, 1 is a cistern that is supplied with water via a water supply valve 3 from a water supply 2. Two water supply pipes are connected from this cistern 1, one of which is ice maker 4.
Ice maker water supply piping 6 that connects and supplies water to the water supply section 5 of
and the other is pump 28. Cooling coil8. A cold water supply pipe 1 connected to a cup pouring section 10 via a three-way valve 9
It is 1.

Reference numeral 12 denotes a syrup supply pipe, which is piped from the syrup tank 13 through the syrup valve 14 to the cup outlet 1°. 16 is a carbonated water supply pipe, which is branched from the cold water supply pipe 11 via the three-way valve 9 and connected to a carbonator 18. It is piped to the cup pouring section 10 via a carbonated water valve 17.

The cup dispensing unit 10 has a cold beverage cup 18 delivered thereto by a cup supply device (not shown). A hot beverage cup 19 is placed.

As is well known, the ice making machine 4 is composed of an ice making section 4a which is a cylindrical inner ice making device and includes an evaporator, an auger, etc., and a water storage section 4b which stores the ice made by the ice making section 4a. And the water supply section 5 at the bottom of the ice making section 4a
is provided with a water inlet 5a and a water outlet 6b, and this water inlet 6
a is connected to the water melting port 4c of the ice storage section 4b by an ice maker water supply pipe 6, and further, the water outlet 6b is connected to a three-way joint 29 of the cold water supply pipe 11. A hot water tank 22 is provided with a heater 22a and a water level control device 22b inside. A hot water supply valve 23 is installed in the hot water tank 22, and the powder raw material supplied from the powder raw material supply device 24 and the hot water supply valve 2 are connected to the hot water tank 22.
The hot water pipe 26 is connected to a mixing device 26 that stirs and mixes the hot water supplied from the hot water pipe 3 . Further, the hot beverage prepared by the mixing device 26 is piped with a hot beverage piping 27 for guiding it to the cup pouring section 10. On the other hand, water is supplied to the hot water tank 22 from the water supply 2 via the water supply valve 3o.

Problems to be Solved by the Invention However, with such a structure, when cold drinks sell relatively well in the summer, water does not flow into the water supply section 5 of the ice maker 4 and stagnates for a long time. However, when cold drinks are relatively slow to sell in the winter, water is likely to remain stagnant for a long time without flowing into the water supply section 6 of the ice maker 4. In this way, if water remains stagnant for a long time, small amounts of microorganisms and germs contained in the tap water will easily propagate, leading to a problem in which the quality of the water deteriorates and makes it unsuitable for drinking. Water stagnation in winter is due to the following reasons.

In other words, the water supplied to the hot water tank 22 is supplied from the tap 2 directly through the water supply valve 3o, and the pump 28 does not operate unless cold drinks are sold in winter, and the water supply section 5 of the ice maker 4 The water would become stagnant.

Therefore, the present invention prevents water from stagnating in the water supply section of an ice maker even when the opportunity to sell cold drinks decreases in winter, making it possible to provide cold and hot drinks suitable for drinking throughout the year. .

Means for solving the problems and technical means of the present invention for solving the problems are:
This constitutes a water circuit of a hot water tank supply pipe that supplies water to the hot water tank via the water supply section of the ice maker.

For production The effect of this technical means is as follows.

That is, the water supplied to the hot water tank is supplied from the water supply section of the ice maker by the second pump, and each time a hot beverage is sold, water is supplied to the hot water tank and the water is supplied from the water supply section of the ice maker. This means that water no longer stagnates for long periods of time.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings, and components that are the same as those of the prior art will be denoted by the same reference numerals and detailed explanation thereof will be omitted.

In FIG. 1, 1 is a cistern that is supplied with water from a water supply 2 via a water supply valve 3. Two systems of water supply piping are connected from this cistern, and the thunder cable 7 that supplies water is the first pump, and cold water is piped to the cup spout 10 via the cooling coil 8 and the three-way valve 9. It is arranged in the supply piping 11. Also, the water outlet 5b of the ice maker 4 is connected to the second pump 2o.
It is connected to the inlet side 20a of the pump by a pump water supply pipe 21.

Further, the outlet side 2ob of the second pump 20 is connected to a hot water tank 22 by a hot water tank supply pipe 28.

In the above configuration, the ice making machine 4 normally receives water from the cistern 1 through the ice making machine water supply pipe 6, and the ice made is always stored in the water storage section 4b.

It is poured into one of the following.

Next, the operation of the configuration of this embodiment will be explained. First, the operation of the cold beverage system will be explained. When the syrup valve 14 is opened, syrup flows out from the syrup tank 13 and is supplied to the cup pouring section 10 through the syrup supply pipe 12. At the same time, the first pump 7 is started and the three-way valve 9 is opened, so that the syrup dilution water is supplied to the cup pouring section 1o through the cold water supply pipe 11 as cooled syrup dilution water.

Further, in accordance with the selection of the product, the carbonated water valve 17 is opened, and carbonated water is supplied through the carbonated water supply pipe 15, and ice is further supplied from the ice maker 4 to the cup water filling device 1Q.

Next, to explain the operation of the hot beverage system, when the powder raw material supply device 24 starts, the powder raw material is supplied to the mixing device 26, and at the same time, hot water is supplied to the hot water pipe 2 by opening the hot water supply valve 23.
6 and is supplied to the mixing device 26. The hot beverage prepared by this mixing device 26 is transferred to the hot beverage piping 2.
7 and is supplied to the cup pouring section 10. When the hot drinks are sold several times, the hot water tank 2
2, the water level control device 22b detects the low water level and starts the second pump 20, which connects the ice maker water supply pipe 6. When water is supplied to the hot water tank 22 via the pump water supply pipe 21° hot water tank supply pipe 28 until a preset water level is reached, the water level control device 22b detects and stops the second pump 20 to stop the water supply. It will stop.

As a result, every time a hot drink is sold, the amount of hot water increases by 7.
2 is supplied with water by the second pump 2Q, the water in the water supply section 6 of the ice maker 4 flows every time it is sold, and does not stagnate for a long time.

In addition, in the summer when hot drinks are relatively slow to sell, cold drinks are sold frequently, so the operating time of the ice maker 4 inevitably increases, and a predetermined amount of stored ice is carried out each time it is sold, and the amount of water stored eventually decreases. When the amount decreases to below a predetermined level, ice making is started again, and the water in the water supply section 6 is supplied to make ice each time ice is made, so it does not stagnate for a long time.

In this embodiment, the second pump is used to supply water to the hot water tank 22, but if the hot water tank 22 can be placed below the cistern 1 due to the structure, the second pump can be replaced with a water supply valve. Water may be supplied using only the cistern head pressure.

Effects of the Invention The present invention provides a cistern that receives water from a water source and temporarily stores the water, a pump that receives water from the cistern and supplies it to a cooling coil, an ice maker that receives water from the cistern and makes ice, and this ice maker. By providing a hot water tank supply pipe that supplies water to the hot water tank through the water supply section of the ice maker, in the summer, when the ice maker is operating, the water supplied from the cistern becomes l[fire water] and flows into the water supply section of the ice maker. Water stagnation is prevented, and in winter, water is supplied from the cistern and is supplied to the hot water tank via the water supply section of the ice maker, preventing water stagnation at the water supply section of the ice maker as in summer. be done. As a result, the water supply section of the ice maker can suppress the growth of microorganisms and germs contained in the tap water, and can provide drinking water suitable for drinking throughout the year.

[Brief explanation of drawings]

FIG. 1 is a fluid system diagram of a water supply device of a cup-type vending machine according to an embodiment of the present invention, and FIG. 2 is a fluid system diagram of a water supply device of a conventional cup-type vending machine. 1... Cistern, 2... Water supply, 4.
... Ice maker, 6 ... Water supply section, T ...
...First pump, 8...Cooling coil, 20.
...Second pump, 22...Hot water tank.

Claims (1)

[Claims] A cistern that receives water from a water source and temporarily stores it; a pump that receives water from the cistern and supplies it to the cooling coil; an ice maker that receives water from the cistern and makes ice; and a hot water tank that passes through the water supply section of the ice maker. A water supply device for a cup-type vending machine equipped with a hot water tank supply piping.