JPS5938146B2 - Deoxygenation storage case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a case for preserving foods, clothing, furs, etc. in an oxygen-free atmosphere.

If you try to store a product by putting an oxygen absorber in a completely sealable container, the oxygen in the sealed container will be absorbed by the oxygen absorber, reducing the volume of the container to about 80% of its original volume.

Therefore, the container is deformed or damaged due to the difference between the external pressure and the internal pressure, and the commercial value of the product and its contents is lost. Therefore, currently commercially available containers use containers that are strong enough to withstand this, which has the disadvantage of making the containers expensive.

Moreover, when this container is actually used, it has the disadvantage that if one tries to open the container after deoxidation, it is extremely difficult to open the lid because the pressure inside the container is reduced. In order to overcome these drawbacks, attempts have been made to provide a bellows or other stretchable film that communicates with the outside air inside the sealed container and to expand in response to the reduced pressure in the sealed container, thereby eliminating the shrinkage.

However, in this case, at the limit of deoxidation, 2
It expands by 0%, and the expansion tends to result in an irregular shape, which is difficult in terms of practicality. Therefore, the inventor of the present invention has investigated a method that allows food and other items to be stored and processed in a deoxidized environment to be freely taken out and removed, while maintaining the effectiveness of the deoxidizing agent over a long period of time. It was learned that the intended purpose could be achieved by combining this with the storage of an oxygen scavenger.

In addition, if a cover made of a stretchable and non-breathable film is used as the cover of the storage case, when the inside of the storage case is maintained in a depressurized and deoxidized state, the cover will conform to the external shape of the items stored in the case. We also learned that it contracts to reduce the pressure difference between the inside and outside, and that this also functions as an indicator of depressurized and deoxidized conditions.

In addition, the oxygen absorber is stored in a separate small case housed within the storage case, and when the storage case lid is open, the oxygen absorber small case is closed, and vice versa. When the small case of the oxygen absorber is set to ``open'', the effectiveness of the oxygen absorber can be maintained for a longer period of time despite the repeated opening and closing of the storage case due to the loading and unloading of items. I knew.

The present invention has been made based on such knowledge, and will be described below with reference to embodiments shown in the drawings. In Figs. 1 to 4, reference numeral 1 denotes a rigid, non-ventilated bottom part in which a small case 2 for accommodating an oxygen scavenger is installed. A stretchable and non-breathable cover 3 consisting of a stretchable rubber film 3'' and a thin stretchable rubber film 37 is attached to a hinge 4 so as to be openable and closable.
As shown in Fig. 5, a hard triangular packing 5 and a soft flat packing 6, which can bite into each other and join together, are respectively attached to the joint surfaces of the case, and when closed, both 1 and 3 form an airtight case. It's becoming like that.

Also, a rod 7 connected to the cover plate 2' of the small case 2 is pivotally attached to the cover 3, and when the cover 3 is opened as shown in Figs. 1 and 4, the cover plate 2' is moved in conjunction with this. When the cover 3 is opened and the cover 3 is closed as shown in FIG. 2, the cover plate 2' of the small case 2 is closed. Also, a small vacuum pump 8 is connected to the bottom 1, and this may be fixed to the bottom 1, or may be used in combination with separately installed pumps.

Then, food 9 to be deoxidized and preserved is placed in the bottom 1 and the cover 3 is closed.
When the inside of the storage case is evacuated, the rubber membrane 3'' contracts from the state shown in FIG. 2 to the state shown in FIG. The remaining space is significantly reduced.

Therefore, the remaining small space is deoxidized by the oxygen absorber housed in the small case 2, and the food products 9 are effectively stored without oxygen. When opening the cover 3, the pressure inside the storage case is returned to near normal pressure, and the food, etc. 9 can be taken in and out.

[Brief explanation of the drawing]

FIG. 1 and FIG. 4 are explanatory diagrams of the case of the present invention in an open state;
FIGS. 2 and 3 are explanatory diagrams of the case of the present invention in a closed state;
FIG. 5 is an explanatory diagram of packing used in the above. 1...Bottom, 2...Small case for storing oxygen absorber, 3...Stretchable, non-breathable cover, 8.
...Vacuum pump, 9...Food, etc.

Claims (1)

[Scope of Claims] 1. It is characterized by being a decompression case equipped with a stretchable and non-breathable cover and configured to house articles to be stored in a deoxidized environment and an oxygen absorber inside. A deoxidizing storage case. 2 consisting of a rigid, non-breathable bottom and a stretchable, non-breathable cover removably fitted or joined onto this bottom to provide an airtight case as a whole; 2. The deoxidizing storage case according to claim 1, wherein a vacuum evacuation system of a separate vacuum pump is connected. 3 The oxygen absorber is stored in a separate small case inside the oxygen absorber storage case, and when the oxygen absorber storage case cover is opened, the oxygen absorber small case is closed, and when the oxygen absorber storage case cover is closed, the oxygen absorber is stored in a separate small case. 3. The deoxidizing storage case according to claim 1 or 2, wherein the small drug case is openable. 4. Claim 1, characterized in that the bottom and the cover of the oxygen-reducing storage case are airtightly fitted or joined by a biting joint between a soft flat rubber packing and a hard triangular rubber packing. The deoxidizing storage case described in any one of paragraphs 1 to 3.