JP3084630B1 - Fresh food storage case - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To reduce the amount of oxygen in a container to suppress respiration when transporting and storing fresh foods such as vegetables, and to promote ripening by removing ethylene gas emitted from ripe fruits. It is demanded that containers that can control water vapor, prevent the evaporation of water vapor from foods due to the decrease in relative humidity due to low temperature, suppress the growth of bacteria, spoilage bacteria, etc., and maintain a constant temperature and humidity condition as much as possible It had been. Activated carbon having a water tank for replenishing water condensed by low temperature, capable of adsorbing and removing harmful volatile components generated in a heat-insulating airtight container, and capable of adsorbing bacteria and the like. A structure that can maintain the temperature and humidity range suitable for each fresh food by enclosing the water tank and opening the water tank to replenish moisture in conjunction with the decrease in water level due to the decrease in moisture And

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention belongs to the technical field related to the structure of containers used for transporting or storing fresh foods such as vegetables and fruits in a fresh state or for long-term storage.

[0002]

2. Description of the Related Art Conventionally, when transporting and storing vegetables, fruits and the like, a packing case made of corrugated paper made of paper fiber pulp is generally used, as disclosed in JP-A-7-70991. As can be seen, proposals have been made to use bamboo charcoal mixed as a material for the packing case.

[0003]

When transporting or storing vegetables, fruits, etc. for a long time, the oxygen content in the case is suppressed to reduce the respiratory rate, and the ethylene gas emitted from the ripe fruits is contained. Reduce the amount, suppress the effect of aging, suppress the decrease in humidity due to low temperature, maintain the humidity in a certain range to avoid the propagation of bacteria due to excessive moisture, and maintain the temperature in a certain range Needed to be kept.

[0004]

Means for Solving the Problems Granules or pellets of activated carbon are sealed in the space between the inner frame, the bottom plate or the inner lid and the box having a mesh in the upper and lower or peripheral portions of the inside of the sealable container, and if necessary. Then, a water tray is placed on the lower part, connected to a water tank, and water is supplied through the surface of the activated carbon, so that a constant humidity range can be achieved.

When it is not necessary to adjust the humidity, only the activated carbon is sealed, the structure is such that water is not supplied by the water tank and the water receiving tray, and harmful gas or microorganisms are removed by the activated carbon.

Water to be reduced by condensation due to low temperature is to be replenished, microorganisms generated by humidity are adsorbed and removed by activated carbon, and ethylene gas generated from ripe fruits or oxygen contained excessively By adsorbing the amount, always maintain a constant temperature range, a constant humidity range and air composition, and adsorb and remove bacteria and other harmful gaseous substances for storage, keep the inside of the box clean, constant temperature and constant humidity. Can be maintained.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A rectangular parallelepiped box with an open top, a net-like inner frame having air permeability, a bottom plate having air permeability,
Or insert one of the inner lids into the box, in the case of the inner lid attached to the inside of the lid, place a saucer at the bottom of the box as necessary,
The space between the box and the lid is filled with granular or pelletized bamboo charcoal activated carbon.

When it is necessary to supply water, a water tank is provided along one side wall of the box, and a required amount of water is supplied from a lower outlet of the water tank into a receiving tray. Soak the lower part of the activated carbon.

[0009]

[Example] Using plastic material, the height is about 300
mm, a width of about 500 mm, and a depth of about 400 mm.
A tray 7 having a depth of about 50 mm and an inner width of about 40 mm, a mesh-like inner frame 3 which can be inserted therein, and a water tank 8 which can be inserted between the mesh-like body and the inner wall of the box. Stand up on the tray 7, insert the activated carbon pack 6d on the opposite side, put vegetables, fruits, etc., and seal with the lid 2.

The height of the water in the tray 7 is raised by about 2 mm from the outlet of the water tank 8 so that the supply of water is shut off. As the water level decreases due to evaporation of the water, the outlet opens to supply water. Can

In a sealed container, it is kept at a constant temperature and humidity, and a gas component generated from vegetables, fruits, etc. is adsorbed and removed by activated carbon such as bamboo charcoal and sterilized, so that it is always kept clean and fresh food. Can maintain freshness.

[0012] When it is not particularly necessary to supply water,
The installation of the water tank 8 and the tray 7 can be omitted.

[0013]

By maintaining the humidity within a certain range, vegetables and the like are deprived of moisture and can be prevented from wilting, thereby maintaining freshness.

Since the odor and harmful volatile components derived from the ripeness of vegetables, fruits and the like are removed by activated carbon mainly composed of bamboo charcoal, it is characterized in that long-term storage is possible.

By keeping the temperature, humidity and air composition almost constant, the rate of maturation of vegetables, fruits and the like is suppressed, and freshness is maintained for a long time in combination with the adsorption of activated carbon having antibacterial action and low temperature. It also has features that allow it to be stored.

[0016] Activated carbon can be easily regenerated by sterilizing, if necessary, washing with water, and drying, and when it is discarded when its efficacy no longer recovers, it can be burned when natural materials are mainly used. As a result, it does not generate harmful substances, can be used as a soil conditioner, and is decomposed and mineralized by the action of bacteria existing in nature, so that it has little risk of polluting the environment.

[Brief description of the drawings]

FIG. 1 shows an example of a case where it is not necessary to supply water to the apparatus according to the present invention.

FIG. 2 shows an example in which activated carbon is inserted into the bottom of the device according to the present invention when water supply is not required.

FIG. 3 shows an example when activated carbon is inserted inside a lid in a case where it is not necessary to supply water to the device according to the present invention.

FIG. 4 shows an example of a case where water is supplied to the apparatus according to the present invention.

FIG. 5 shows an assembling sequence when water is supplied to the device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2 Lid 3 Inner frame 4 Bottom plate 5 Inner lid 6a, 6b, 6c, 8d Activated carbon 7 Receiving tray 8 Water tank

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A23B ⁷ /14-7/156 B65D 81/24-81/38 F25D 3/00

Claims (1)

(57) [Claims] 1. A net-like frame is provided on a side inside the box, and a gap between the frame and the side inside the box is filled with activated carbon mainly made of bamboo charcoal. Air composition by immersing a part of the activated carbon in a saucer filled with water.
A fresh food storage case characterized in that the temperature is kept substantially constant, and the temperature and humidity can be kept constant .