JPH10141504A - Sealing construction of food processing chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a food processing chamber capable of maintaining the sealing property securely with simple construction. SOLUTION: A food access port 2 is formed open in one side wall of a processing chamber of which interior is formed into a food processing chamber, and the food access port 2 is formed openably with a cover body 5 so as to construct a food processing chamber. Also a recessed groove 8 formed with a sealing material 6 at least on one side wall under the condition that the food access port 2 is surrounded is arranged at the outer peripheral wall part of the food access port 2. In this recessed groove 8, an elastic member 9 having liquid holding property is arranged under wet condition. Then a liquid film is formed between a contact surface 7 and a cover body internal surface under the condition that the sealing material 6 is brought in contact internally with the cover body 5 so as to seal a contact part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed structure in a food processing cabinet for processing fresh foods such as agricultural products, marine products and livestock products and cereals before shipping.

[0002]

2. Description of the Related Art In general, ripening treatment and de-astringency treatment of fruits, etc.,
For marine and livestock products, they are sterilized and aged, and for cereals, they are sterilized before shipment. Although such processing uses various gases, the processing chamber is kept airtight for processing stability and safety.

In a conventional processing chamber, a water reservoir is formed on the floor, and the lower end of the vertically movable airtight tent is immersed in water in the water reservoir to form the inside of the airtight tent in a processing chamber.
The doors at the opening and closing doors of the airtight warehouse are pressed strongly against each other to maintain the airtightness of the room.

[0004]

In an airtight tent type treatment apparatus, an annular groove must be formed on the floor, so that loading and unloading of the food to be treated becomes troublesome. There is a problem that steam flows into the processing chamber and changes the atmosphere in the processing chamber. In the case where the warehouse is constructed in an airtight structure and the doors are pressed against each other, the doors must be pressed strongly to maintain airtightness, which complicates the door opening and closing mechanism. was there.

[0005] The present invention has been proposed in view of the above points, and an object of the present invention is to provide a food processing cabinet that can reliably maintain airtightness with a simple structure.

[0006]

According to the first aspect of the present invention, there is provided a sealing material disposed on an outer peripheral wall portion of a food carry-in / out port in a food processing cabinet so as to surround the food carry-in / out port. The sealing material has two parallel contact surfaces and a concave groove located between the two contact surfaces, and a liquid retaining elastic member is wetted in the concave groove. It is characterized in that a liquid film is formed between both contact surfaces and the inner surface of the lid in a state where the inner surface of the lid is in contact with the sealing material, and the contact portion is sealed.

According to a second aspect of the present invention, a groove is formed in an outer peripheral wall portion of a food carry-in / out port in a food processing storage so as to surround the food carry-in / out port, and a pair of side walls forming the concave groove are formed. At least one of the side walls is formed of a sealing material, a concave groove is formed in the liquid path, and a liquid film is formed between the contact surface and the inner surface of the lid when the inner surface of the lid is in contact with the sealing material. And the contact portion is sealed.

[0008]

According to the present invention, a groove having at least one side wall formed of a sealing material is disposed on the outer peripheral wall portion of the food carry-in / out port in the food processing cabinet so as to surround the food carry-in / out port. The liquid film due to the surface tension of the liquid in the fine gap between the ridge tip surface of the sealing material and the inner surface of the door when the door is closed by wet state of the elastic member having the groove or forming the concave groove as a liquid path. Since it is formed, airtightness can be maintained.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings illustrate embodiments of the present invention,
1 is a perspective view of a main part taken out, FIG. 2 is a schematic perspective view of the whole, and FIG. 3 is a cross-sectional view of the main part when the lid is closed. The processing cabinet has an opening (2) for carrying in-out the food to be treated on one side of a box-shaped main body (1) formed in an airtight and heat-insulating structure.
(2) a lid composed of an airtight sheet (3) and a heat insulating door (4)
It is closed at (5).

[0010] A sealing material (6) is provided on the wall surface forming the carry-in / out port (2) so as to surround the carry-in / out port (2). This sealing material (6) is formed in a shape having two parallel ridges (7) and a concave groove (8) located between the two ridges (7) (7). A ring member (9) made of a material having both liquid retaining property and elasticity, such as a sponge, is arranged in the concave groove (8) of the sealing material (6). This ring body (9) is mounted in a state where its tip protrudes from an imaginary plane formed by the tip faces of both ridges (7),
It is always kept moist.

[0011] The carry-in / out port (2) is provided with an airtight sheet (3).
When the heat insulating door (4) is closed after stretching, the inner surface of the airtight sheet (3) is brought into contact with the distal end surface of the ridge (7) of the sealing material (6). 9) leaks the retained liquid from being deformed by pressing, flows into the minute gap between the ridge tip surface of the sealing material (6) and the inner surface of the airtight sheet (3), and causes the surface tension thereof. To form a liquid film. Airtightness can be ensured by this liquid film.

As a means for supplying the liquid to the ring body (9), it is conceivable to spray or drip.

FIG. 4 is a schematic perspective view showing another embodiment, and FIG. 5 is a sectional view of a main part when the lid is closed. This processing chamber includes two parallel ridges (7) provided with a sealing material (6) disposed so as to surround the carry-in / out entrance (2), and a concave portion located between the two ridges (7) and (7). And a supply / drainage pipe (10) is connected to a portion of the concave groove (8) near the lower end thereof.
An air vent pipe (11) is communicatively connected to a portion near the upper end of the groove (8), and the groove (8) is formed in the liquid path.

An airtight sheet (3) is provided at the loading / unloading port (2).
The heat-insulating door (4) is closed so that the inner surface of the air-tight sheet (3) is brought into close contact with the ridge (7) of the sealing material (6).
When the liquid is filled in the liquid path constituted by the concave groove (8) of (6), the ridge is formed.
The liquid in the liquid path penetrates into the minute gap generated at the contact surface between the (7) and the airtight sheet (3) to form a liquid film due to surface tension, thereby blocking gas communication between the inside and outside of the sealing material. Become.

FIG. 6 shows still another embodiment, which comprises two parallel ridges (7) surrounding the loading / unloading port (2) of the processing chamber, and both ridges (7) and (7). A sealing material (6) having a concave groove (8) located between them is arranged, and a flexible tube (12) is provided between the sealing material (6) and the peripheral wall portion of the carry-in / out port (2). And a ring body (9) formed of a material having both liquid retention and elasticity, such as a sponge, is provided in the concave groove (8) of the sealing material (6). )
Is covered with an airtight sheet (3), and the airtight sheet (3) is brought into contact with the sealing material (6) and the ring body (9). After closing the heat insulating door (4), the flexible tube (12) is closed. A pressurized hydraulic fluid such as air or a liquid is press-fitted into the inside, and the sealing material (6) and the ring body (9) are pressed into contact with the airtight sheet (3) lined with the heat insulating door (4) to form a ring. The liquid held by the body (9) is exuded to form a liquid film between the ridge (7) of the sealing material (6) and the airtight sheet (3).

In each of the above embodiments, the airtight sheet (3)
The heat-insulating door (4) was used as a means for pressing the sealing material (6) against the sealing material (6).
(3) may be pressed against the sealing material (6). Further, in each of the above embodiments, the case where the loading / unloading port (2) of the processing chamber is closed by the lid (5) including the airtight sheet (3) and the heat insulating door (4) has been described. 3) Omitting the insulated door (4) or sealing the inner surface of the non-insulated door body (6)
It may be closed by contacting the inner surface of the.

[0017]

According to the present invention, a groove is formed on the outer peripheral wall portion of the food carry-in / out port in the food processing storage at least to one side so as to surround the food carry-in / out port with a sealing material. Since the elastic member having a liquid retaining property is disposed in a wet state, or the concave groove is formed as a liquid path, the fine gap between the ridge tip surface of the sealing material and the inner surface of the door at the time of closing the door is provided. A liquid film is formed by the surface tension of the liquid, and the airtightness at the sealed portion can be maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part taken out.

FIG. 2 is a schematic perspective view of the whole.

FIG. 3 is a sectional view of a main part when the lid is closed.

FIG. 4 is a schematic perspective view showing another embodiment.

FIG. 5 is a sectional view of a main part when the lid is closed.

FIG. 6 is a cross-sectional view of a main part when a lid is closed, showing still another embodiment.

[Explanation of symbols]

2 ... food loading / unloading entrance, 5 ... lid, 6 ... sealing material, 7 ... contact surface, 8 ... concave groove, 9 ... elastic member.

Claims (2)

[Claims] 1. A food carry-in / out port (2) is formed in one side wall of a processing cabinet having an interior formed in a food processing chamber, and the food carry-in / out port (2) can be opened and closed by a lid (5). In the processed food processing cabinet, a sealing material (6) is arranged on the outer peripheral wall portion of the food loading / unloading port (2) so as to surround the food loading / unloading port (2), and the sealing material (6) is provided with two parallel contact surfaces ( 7) and a concave groove (8) located between both contact surfaces (7), and a liquid retaining elastic member (9) is wetted in the concave groove (8). Place with seal material
(6) A liquid film is formed between both abutting surfaces (7) and the inner surface of the lid in a state where the inner surface of the lid (5) is in contact with the inner surface of the lid (5), and the corresponding contact portion is sealed. Sealed structure in food processing sheds. 2. A food carry-in / out port (2) is formed in one side wall of a processing chamber formed inside a food processing chamber, and the food carry-in / out port (2) can be opened and closed by a lid (5). In the processed food processing shed, the fresh food entrance (2) is located on the outer peripheral wall of the food entrance (2).
A groove (8) is formed in a state surrounding the groove, and at least one of the pair of side walls forming the groove (8) is formed of a sealing material (6). Formed into a sealing material
With the inner surface of the lid (5) in contact with (6), the contact surface (7)
A sealing structure in a food processing cabinet, characterized in that a liquid film is formed between the lid and the inner surface of the lid to seal the contact portion.