JPH01307418A - Filter of cut type drink automatic vending machine - Google Patents

Abstract

PURPOSE:To semipermanently restrain the prepagation of germs in the water retained in a filter by using the inorganic antibacterial agent of silver ions combined with synthetic zeolite for the packing material of the filter. CONSTITUTION:The inorganic antibacterial agent 18 of silver ions combined with synthetic zeolite is used with activated carbon 17 for the packing material of the filter 2. By this germ killing property of silver ions combined with synthetic zeolite, the propagation of the germs in the filter 2 is semipermanently restrained. As silver ions are combined with synthetic zeolite utilizing the ion- exchangeability of synthetic zeolite, such a danger does not exist that the silver ions flow out in the downstream passage supplying drinking water.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a filter provided in a water supply circuit of a cup-type beverage vending machine, which is particularly capable of suppressing the growth of bacteria in the supplied water.

2. Description of the Related Art A drinking water supply circuit of a conventional cup-type beverage vending machine will be described with reference to FIGS. 2 and 3. 1 is a water supply valve that controls the reservoir that supplies water from the tap to the circuit. Water that has passed through the water supply valve 1 is guided to a filter 2. The water that has passed through the filter 2 is sent to a hot water tank 14 via a distribution valve 3;
It is divided into two parts that go to water reservoir 4. The water led to the water reservoir 4 is temporarily stored here, and then a part of it is transferred to the ice maker 9.
The remaining water passes through the three-way valve 5, is divided into a cold water coil 6 and a carbonator 11, and is poured into a cup 8 as cold water and carbonated water. Chilled water coil 6 and carbonator 1
1 is located in a cooling water tank 7, which cools water to an appropriate temperature and effectively dissolves carbon dioxide gas in the water to produce carbonated water.

Therefore, the carbonator 11 is supplied with carbon dioxide gas from the carbon dioxide pump 10 in addition to water from the water reservoir 4 . Further, the carbon dioxide gas from the carbonated carbonate gas 10 is also supplied to the syrup container 12, and the concentrated syrup stored in the syrup container 12 is force-fed to the cup 8 via the syrup coil 13 by the pressure of the carbon dioxide gas.

FIG. 3 is a drawing of the filter 2, in which 15 is an outer cylinder, 16
17 is an inner cylinder, and the inner cylinder 16 is filled with activated carbon.

Water from the water supply valve 1 enters the filter 2 from the IN of the filter 2, flows through the filter 2 as shown by the arrow, flows from the OUT to the distribution valve 3, and removes chlorine and iron chips from the water.

Problems to be Solved by the Invention However, in the above configuration, bacteria in the water remaining in the filter 2 proliferate. Furthermore, since the filter 2 is placed at the source of the drinking water supply circuit as shown in the figure, there is a problem in that contamination within the filter 2 affects the entire circuit.

In view of the above problems, the present invention provides a filter for a cup-type beverage vending machine that is semi-permanently sterilized or sterilized within the filter without impairing its original function as a filter.

Means for Solving the Problems The filter for a cup-type beverage vending machine of the present invention which solves the above-mentioned problems is characterized by using an inorganic antibacterial agent containing silver ions as a filler.

Function The present invention uses the above-described configuration to suppress the growth of bacteria in the water that remains semi-permanently in the filter due to the bactericidal properties of the inorganic antibacterial agent.

EXAMPLE Below, a cup-type beverage vending machine according to an embodiment of the present invention will be explained with reference to the drawings. Items with the same configuration as conventional ones will be given the same numbers and detailed explanations will be omitted. do.

FIG. 1 shows a filter 2 of a cup-type beverage vending machine according to an embodiment of the present invention.

In FIG. 1, reference numeral 18 is an inorganic antibacterial agent in which silver ions are bonded to synthetic zeolite, which is filled in the inner cylinder 16 together with activated carbon 1 as a filler.

The operation of the filter of the cup-type beverage vending machine configured as described above will be explained below.

By filling the inner cylinder 16 of the filter 2 with an inorganic antibacterial agent in which silver ions are combined with synthetic zeolite, the sterilizing properties of the silver ions combined with the synthetic zeolite can be used to semi-permanently maintain the inside of the filter 2. The growth of various bacteria can be suppressed.

As described above, the effect of the invention is that it is possible to semi-permanently suppress the growth of bacteria in the filter of a cup-type beverage vending machine, and since the filter is located at the source of the drinking water circuit, bacteria are transferred to the downstream drinking water supply circuit. This eliminates the need to supply contaminated water. Moreover, it has the following effects.

(1) Since silver ions are bonded using the ion exchange properties of synthetic zeolite, there is no risk of silver ions leaking into the downstream drinking water supply circuit.

(2) Since it is only necessary to fill the filter with the filler and an inorganic antibacterial agent, the filter can be easily imparted with sterilizing properties.

(3) Since the growth of germs is suppressed semi-permanently, the hygiene of cup-type beverage vending machines is greatly improved.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a filter of a cup-type beverage vending machine according to an embodiment of the present invention, Figure 2 is a drinking water supply circuit diagram of a conventional cup-type beverage vending machine, and Figure 3 is a diagram of a conventional cup-type beverage vending machine. FIG. 3 is a cross-sectional view of a filter of a beverage vending machine. 2...Filter, 1B...Inorganic antibacterial agent. - Filter 18--Ichitan #yF, Anti-Sonoki 1 to 1 Figure 2 Figure 3

Claims (1)

[Claims] A filter for a cup-type beverage vending machine characterized by using an inorganic antibacterial agent in which silver ions are combined with synthetic zeolite in the filling of the filter.