JP2021027914A - Sterilized storage - Google Patents

Abstract

To solve the problems that there exists a pass-through type sterilized storage which has a first opening at a contaminated area side such as a dish washing place, and an opposite second opening at a clean area side such as a service place, and carries out an article cart to the second opening after carrying in from the first opening followed by finishing sterilization of the inside of the storage, but in the sterilized storage, various germs and dust re-contaminate the inside of the storage and the article cart due to the fact that the first opening at a contaminated area side is erroneously opened, when the article cart is carried out to the outside of the storage by opening the second opening after sterilizing the article cart.SOLUTION: A sterilized storage is so constituted that a door 14 of a first opening at a contaminated area A side is always locked so as to prevent atmosphere contaminated by erroneous operation from invading into the storage when an article cart 10 is carried out to a clean area B side after sterilizing the article cart 10 inside the storage.SELECTED DRAWING: Figure 7

Description

The present invention has openings on the front and back surfaces of the housing, and after carrying the article cart into the refrigerator from one side and performing a disinfection operation, the article cart is carried out from the other side. It is about the pass-through type disinfection storage to be obtained.

For example, as shown in FIG. 1, a first opening 12 for carrying the tableware cart 10 and a first door 14 for closing the opening 12 are provided on the front surface of the housing facing the dishwashing area A, and a food serving area. A pass-through type disinfection storage 20 provided with a second opening 16 through which the tableware cart 10 is carried out and a second door 18 for closing the opening 16 on the back surface of the housing facing B is a large restaurant and a hospital. It is also widely used in kitchens such as schools. Here, the area such as the dishwashing place is referred to as a contaminated area A for convenience, but this is for the purpose of explanation only, and the hygiene standard is not inferior. In addition, an area such as a food serving area is referred to as a clean area B for convenience, but this does not mean that the hygiene standards are particularly excellent. However, it can be said that the contaminated area A such as a dishwashing place generally has a relatively large amount of germs and dust in the air as compared with the clean area B such as a food serving place.

As shown in FIG. 2, the disinfection storage 20 includes an air heating heater 22 and a fan 24 that circulates the air heated by the heater 22 as hot air in the storage. Then, after the tableware cart 10 (FIG. 10) in which a large number of tableware baskets 26 are placed in multiple stages is carried into the disinfection storage 20, the first door 14 opens the first opening 12 and the second door 2 doors. At 18, the second opening 16 is correspondingly closed and the disinfection operation is performed. That is, the tableware in the tableware basket 26 placed on the tableware cart 10 is forcibly heated and dried by operating the air heating heater 22 and the air circulation fan 24 to circulate high-temperature hot air in the chamber. High temperature sterilization is performed.

Japanese Unexamined Patent Publication No. 2002-238827

In the pass-through type disinfection storage 20 shown in FIG. 1, for example, the first opening 12 on the front surface of the housing faces the dishwashing place (so-called contaminated area A) in which the automatic dishwashing machine is arranged, and food such as a serving place is provided. The second opening 16 on the back surface of the housing faces the serving place (so-called clean area B). Then, as described above, after the tableware cart 10 is housed in the disinfection storage 20, the front and rear doors 14 and 18 are closed and the disinfection operation is performed, so that the tableware mounted on the tableware cart 10 is sterilized at a high temperature. To. Then, when the disinfection operation is completed, the second door 18 on the cleaning area B side is opened, the tableware cart 10 is carried out, and food is served at the serving place or the like in the cleaning area B. However, in this case, the first door 14 on the contaminated area A side may also be accidentally opened. Then, a contaminated atmosphere such as germs and dust floating in the contaminated area A invades the inside of the storage, adheres to the tableware that has just been disinfected, or recontaminates the inside of the storage. In addition, germs and dust in the contaminated area A may pass through the disinfection storage 20 and invade the clean area B, contaminating the atmosphere of the clean area B.

The invention according to claim 1 for solving the above problems and achieving the intended purpose
The first door of the first opening on one side is opened to carry the goods cart into the refrigerator, and then the first door is closed to perform the disinfection operation. When the disinfection operation is completed, the other side In the disinfection storage where the second door of the second opening is opened to carry out the goods cart,
When the disinfection operation is completed and the article cart is carried out, the gist is that the first door on one side of the article is locked.
According to the invention of claim 1, when the second door of the second opening on the other side is opened to carry out the article cart, the first door of the first opening on one side is locked (chain). Since it is locked), for example, it is possible to reliably prevent germs and dust in the contaminated area from entering the clean area.

The invention according to claim 2 for solving the above problems and achieving the intended purpose
A first opening for inserting and removing the article cart is provided on the front side of the contaminated area, and a second opening for inserting and removing the article cart is provided on the back side of the clean area.
The first door is openable and closable in the first opening, and the second door is openable and closable in the second opening.
In a disinfection storage where an air heating heater is provided in the storage where the goods cart is housed,
The first door sensor that detects the opening and closing of the first door, and
A second door sensor that detects the opening and closing of the second door,
The first lock mechanism for unlocking or locking the first door, and
A second lock mechanism for unlocking or locking the second door, and
A cart detection sensor that detects the storage of the goods cart in the refrigerator and
It is composed of a control circuit in which signals from the first door sensor, the second door sensor and the cart detection sensor are input and an open / close signal of the first lock mechanism and the second lock mechanism is output.
When the article cart is carried into the refrigerator, the first door on the contaminated area side is opened, and the second door on the clean area side is locked by the second lock mechanism.
During the disinfection operation with the air heating heater with the first door and the second door closed, the first door and the second door are closed by the first lock mechanism and the second lock mechanism in response to the signal from the control circuit. Lock and lock
When carrying out the goods cart into the refrigerator, the gist is that the second door on the clean area side is opened and the first door on the contaminated area side is locked by the first lock mechanism. To do.
According to the invention of claim 2, since the first door and the second door can be unlocked and unlocked by the corresponding lock mechanisms, the contaminated area and the clean area can be separated into the first door and the second door. Can be surely divided with. As a result, when the disinfection operation is completed and the article cart is carried out to the clean area side, the first door on the contaminated area side is locked by the lock mechanism, so that germs, dust, etc. are inside the refrigerator from the contaminated area side. And do not invade clean areas.

According to the present invention, since the unlocking / locking of the first door and the second door can be controlled by the corresponding locking mechanisms, the contaminated area and the clean area are surely separated by the first door and the second door. can do. In addition, when carrying out the goods cart to the clean area side, the first door on the contaminated area side is locked by the lock mechanism, so that germs and dust etc. invade the inside of the refrigerator and the clean area from the contaminated area side. There is no.

It is a perspective view which shows the schematic structure of the pass-through type disinfection storage which concerns on embodiment of this invention, in which the 1st opening of the front surface of a housing in a storage is facing a contaminated area, and the 2nd opening of the back of a housing is Facing a clean area. In the front view of the disinfection storage shown in FIG. 1, the first opening is closed by a first door with double doors. In the rear view of the disinfection storage shown in FIG. 1, the second opening is closed by a second door with double doors. It is a vertical side view of the disinfection storage shown in FIG. 1, and shows a state of waiting for the goods cart to be carried in. The first door facing the contaminated area and the second door facing the clean area are both closed, and the second door is locked. In the disinfection storage shown in FIG. 4, it is a vertical sectional side view showing a state in which the first door on the contaminated area side is opened and an article cart is carried into the storage. At this time, the second door on the clean area side is closed and locked. In the disinfection storage shown in FIG. 5, it is a vertical sectional side view showing a state in which an article cart is stored in the storage and a disinfection operation is performed. At this time, the first door on the contaminated area side and the second door on the clean area side are closed, and both doors are locked. FIG. 6 is a vertical sectional side view showing a state in which the disinfection operation is completed and the second door on the cleaning area side is opened to carry out the article cart in the disinfection storage shown in FIG. The first door on the contaminated area side is closed and locked. It is a time chart which shows the time-dependent operation of each member at the time of the disinfection operation in the disinfection storage shown in FIGS. 4 to 7. 4 is a control circuit diagram of an electric control system in the disinfection storage shown in FIGS. 4 to 7. It is a perspective view of the article cart housed in the pass-through type disinfection storage shown in FIG. 1 and sterilized at high temperature in the storage.

Next, a preferred embodiment of the disinfection storage according to the present invention will be described with reference to the drawings. The disinfection storage of the embodiment is a pass-through type in which the above-mentioned article cart is carried into the chamber from the contaminated area side and then disinfected, and when the disinfection operation is completed, the article cart is carried out to the clean area side. Further, the same members as the members of the disinfection storage described with respect to FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.

(About the 1st and 2nd door sensors)
As shown in FIG. 2, the first door 14 that opens and closes the first opening 12 that opens on the contaminated area A side is provided with a first door sensor SW1 that detects the opening and closing of the first door 14. There is. Further, as shown in FIG. 3, the second door 18 that opens and closes the second opening 16 that opens on the clean area B side is also provided with the second door sensor SW2 that detects the opening and closing of the second door 18. ing. The door sensors SW1 and SW2 are connected to the control circuit 28 shown in FIG. 9, and when the corresponding door is closed, for example, an ON signal is transmitted, and when the door is opened, an OFF signal is transmitted. Reed switches and various other proximity switches are used as the door open / close sensors SW1 and SW2.

(About the 1st and 2nd lock mechanism)
As shown in FIGS. 2 and 3, the first door 14 and the second door 18 can be locked in appropriate places as necessary when the respective doors are completely closed. The first lock mechanism R1 and the second lock mechanism R2 are provided correspondingly. These lock mechanisms R1 and R2 are composed of, for example, an electrically operable solenoid and a plunger (latch), and the plunger of the solenoid is provided with a through hole RH at appropriate positions in the first opening 12 and the second opening 16 (FIG. 1). By advancing and retreating (see), each door is locked and unlocked. The first lock mechanism R1 and the second lock mechanism R2 are connected to the control circuit 28 shown in FIG. 9, and are input to the control circuit 28 from the first door sensor SW1, the second door sensor SW2, and the cart detection sensor CS described later. The locking and unlocking are performed under the control of the signal.

(About cart detection sensor)
As shown in FIG. 6, the article cart 10 shown in FIG. 10 is subjected to a disinfection operation in a state of being housed in the disinfection storage 20. At this time, a cart detection sensor CS is provided to detect whether or not the article cart 10 is securely housed in the refrigerator. This cart detection sensor CS is, for example, an infrared sensor, and an infrared receiving portion CS1 is provided on the top of the article cart 10. Further, an infrared transmission unit CS2 is provided above the inside of the disinfection storage 20. Then, as shown in FIG. 6, when the article cart 10 is completely housed in the disinfection storage 20, the infrared rays from the infrared transmitter CS2 in the cart detection sensor CS are emitted from the infrared receiver of the article cart 10. Detects storage in the cart in response to CS1. The cart detection sensor CS is connected to the control circuit 28 of FIG. 9, and the control circuit 28 processes signals at the time of cart detection, signals from the first door sensor SW1 and the second door sensor SW2, and the like to lock the first lock. Controls the locking of mechanism R1.

(About the operation panel)
In FIG. 1, an operation switch 36, various setting buttons, and the like for operating the disinfection storage are provided only on the operation panel 30 arranged above the front surface of the storage housing. For this reason, it is possible to prevent the occurrence of erroneous operations such as the worker on the food serving place side accidentally stopping the operation even though the operation is started on the washing place side. Adjacent to the operation panel 30, a panel 32 for displaying the operating state of the disinfection storage 20 is provided. This is because in the pass-through type disinfection storage, the contaminated area A and the cleaning area B are separated by the storage, so that the worker working in one of the areas can open the door of the other area. Since it is not possible to confirm whether the door is closed or closed, the status display panel 32 is provided in order to eliminate the inconvenience. For example, even if the first door 14 is to be opened in the contaminated area A after the article cart 10 has been unloaded to the clean area B side, whether or not the article cart 10 has been unloaded is in the contaminated area A. The worker does not know. Therefore, in the case where the status display panel 32 is arranged, whether the first door 14 and the second door 18 are opened and closed, and whether the door is unlocked or locked by the first lock mechanism R1 and the second lock mechanism R2. Various information such as whether or not is displayed. In addition, instead of the state display panel 32, a plurality of lamps for identifying the operating state may be provided.

(About movement over time)
Next, the actual use of the disinfection storage 20 according to the embodiment will be described with reference to the timing charts of FIGS. 4 to 7 and 8. FIG. 4 shows a state in which the goods cart 10 is waiting to be carried into the refrigerator, and the first door 14 and the second door 18 are both closed. At this time, the lock of the first door 14 on the contaminated area A side is released, but the second door 18 on the clean area B side is locked by turning on the second lock mechanism R2 as shown in FIG. It is (locked).

When the goods cart 10 is carried into the disinfection storage 20, the first door 14 is opened and the goods cart 10 is carried into the storage as shown in FIG. At this time, the second door 18 on the clean area B side is still locked. Then, as shown in FIG. 6, when the article cart 10 is completely stored in the disinfection storage 20, the infrared rays from the infrared transmitting unit CS2 in the storage react with the infrared receiving unit CS1 provided in the article cart 10. The cart is detected to be completely stored, and the detection signal is sent to the control circuit 28 of FIG. Then, as shown in the time chart of FIG. 8, when the first door 14 on the contaminated area A side is closed, the first door sensor SW1 detects the door closing, and the first lock mechanism R1 is turned on to operate the door. Lock the first door 14. In this state, the air heating heater 22 and the air circulation fan 24 are energized, and the disinfection operation is started.

When the disinfection operation for a predetermined time is completed, the control circuit 28 in FIG. 9 issues an OFF command to the second lock mechanism R2, and as shown in FIG. 7, the lock of the second door 18 on the cleaning area B side is unlocked. To. Therefore, the worker opens the second door 18 and carries out the article cart 10 that has been disinfected and dried to the cleaning area B side for serving tableware and the like. Since the locking of the first lock mechanism R1 at the first door 14 on the contaminated area A side is still ongoing, the first door 14 cannot be opened. That is, since the first door 14 is not opened toward the contaminated area A side, the first door 14 is not accidentally opened and the contaminated atmosphere does not flow into the refrigerator.

10 Tableware cart (article cart), 12 1st opening, 14 1st door,
16 2nd opening, 18 2nd door, 22 Air heating heater, 28 Control circuit,
A contaminated area, B clean area, CS cart detection sensor,
R1 1st lock mechanism, R2 2nd lock mechanism, SW1 1st door sensor,
SW2 2nd door sensor

Claims (3)

The first door (14) of the first opening (12) on one side is opened to carry the article cart (10) into the refrigerator, and then the first door (14) is closed for disinfection operation. When the disinfection operation is completed, the second door (18) of the second opening (16) on the other side is opened and the article cart (10) is carried out in the disinfection storage.
When the disinfection operation is completed and the article cart (10) is carried out, the disinfection storage is characterized in that the first door (14) on one side is locked. A first opening (12) for inserting and removing the article cart (10) is provided on the front side of the contaminated area (A), and a second opening for inserting and removing the article cart (10) on the back side of the clean area (B). Part (16) is provided,
The first door (14) is openably and closably provided in the first opening (12), and the second door (18) is openably and closably provided in the second opening (16).
In the disinfection storage where the air heating heater (22) is provided in the storage where the article cart (10) is housed.
The first door sensor (SW1) that detects the opening and closing of the first door (14) and
The second door sensor (SW2) that detects the opening and closing of the second door (18) and
The first lock mechanism (R1) for unlocking or locking the first door (14) and
A second lock mechanism (R2) for unlocking or locking the second door (18), and
A cart detection sensor (CS) that detects the storage of the article cart (10) in the refrigerator, and
Signals from the first door sensor (SW1), the second door sensor (SW2), and the cart detection sensor (CS) are input to open and close the first lock mechanism (R1) and the second lock mechanism (R2). It consists of a control circuit (28) that outputs a signal.
When the article cart (10) is carried into the refrigerator, the first door (14) on the contaminated area (A) side is opened, and the second door (18) on the clean area (B) side is opened. Lock with the second lock mechanism (R2),
During the disinfection operation with the air heating heater (22) with the first door (14) and the second door (18) closed, the first lock mechanism (R1) receives a signal from the control circuit (28). And the second door (14) and the second door (18) are locked by the second lock mechanism (R2).
When carrying out the article cart (10) into the refrigerator, the second door (18) on the clean area (B) side is opened, and the first door (14) on the contaminated area (A) side is opened. A disinfectant storage that is characterized by being locked by the first lock mechanism (R1). When the disinfection operation is stopped while the first door (14) and the second door (18) are closed and the goods cart (10) is waiting to be carried in, the first door (A) side of the contaminated area (A) ( Claim 2 in which the first lock mechanism (R1) in 14) is unlocked and the second door (18) on the clean area (B) side is locked by the second lock mechanism (R2). The listed disinfection storage.

Images