JPS581649A - Vessel preventing degeneration of content - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a container that prevents the contents from deteriorating. More specifically, the present invention relates to a container configured to prevent air flowing into the container from an air inlet port from coming into contact with residual contents as the contents are poured out from the container spout.

Many fluids such as oil, liquid, milk, wine, and developer deteriorate due to air oxidation and sometimes become spoiled.

Conventional containers are not constructed to prevent air oxidation of the contents.

An object of the present invention is to provide a container that prevents air oxidation of the contents. Another object of the invention is.

Our goal is to provide inexpensive containers. Yet another object of the present invention is to provide a container that is easy to manufacture.

The present invention will be described in detail below based on embodiments and with reference to the drawings.

As shown in Figure (1), the container 1 of the present invention has a container body 3 for containing contents 21, such as a fluid such as oil, a spout 4, and an air inlet 5. The spout 4 is connected to the container 1.
The tilt is the opening for taking out the contents 2 to the outside. . The air inlet 5 is a port through which outside air flows into the container body 3 as the contents 2 are poured out from the spout 4, and is provided at the bottom end of the container body 3. Installation of air inlet 5 f
There is no particular Kwf value for the t position, and it is arbitrarily set in consideration of the capacity, shape, etc. of the container 1. In this air inlet 5.

An air storage bag 55 that accommodates all the air flowing into the container l from the inlet 5 is attached in an airtight and watertight manner. Check valves 40 and 50 are installed at the spout 4 and the inlet 5, respectively.
is provided. The check valve 40 is connected to the spout 4 for the inner nitrate 2.
It allows outside air to flow out from the spout 4, but prevents outside air from flowing in from the spout 4. The check valve 40 is made of a piece of plastic film, for example, and is disposed on the outer wall of the container so as to cover the spout 4, and a portion of the check valve 40 is fixed to the outer wall of the container near the spout 4 by means of adhesive or the like. The check valve 50 allows outside air to flow in from the air inlet 5, but prevents the air that has flown in from flowing out from the air inlet 5.

The check valve 50 in this case is similarly made of a piece of plastic film, for example, and is disposed on the inner wall of the container so as to cover the air inlet 5, and a portion thereof is fixed to the inner wall of the container in the vicinity of the air inlet 5.

When the container 1 is tilted, the check valve 4
0 is opened by the pressure of the contents 2, and the contents 2 flow out from the spout 4. As the contents 2 flow out, the check valve 50 of the air inlet 5 is pushed by the outside air and opens, allowing outside air to flow into the air storage bag 55 inside the container 1.

Since this bag 55 is made of a soft synthetic resin film and is extremely light, it can accommodate the inflowing air while holding the contents 2.
deforms freely along the liquid surface.

When the container 1 is returned to its original position and the outflow of the contents 2 is stopped, the spout check valve 40 opens as shown in FIG. 1(C).
returns to its original position under its own weight and seals the spout 4.

The remaining contents press the air storage bag 55 against the inner wall of the container, so that the air flowing into one bag presses the air inlet check valve 50. Therefore, the check valve 50 closes to seal the air inlet 5. As a result, the contents flowing out of the container 1 are replaced by an approximately equal amount of incoming air. Since the incoming air is contained in the bag 55, it does not come into contact with the remaining contents. It is not necessary to provide both the check valves 40 and 50, and even if the check valve 40 is omitted, there is no risk of outside air flowing in from the spout 4. On the other hand, even if the air inlet check valve 50 is omitted, as long as the outlet check valve 40 is provided, there is no risk that the incoming air contained in the bag 55 will flow out from the air inlet 5. It is also desirable to provide a tray 41 at the spout 4 in consideration of the case where the container 1 falls over.

FIG. 2 shows an example in which the air/air flow population 5 is provided at the top of the container. In this case, the manner in which the outside air flows in is also the same as described above. In addition, as a check valve 40.50.

In addition to the above-mentioned film piece, a known ball that moves up and down in a predetermined space may also be used. As described above, the container 1 of the present invention is configured such that the incoming air corresponding to the amount of the outflow contents is accommodated within the container 1 without directly touching the remaining contents, and therefore, it has excellent effects corresponding to the above-mentioned purpose. do i.

[Brief explanation of the drawing]

Fig. 1 shows an example of the container of the present invention, and Fig. 1) shows the container l.
FIG. Figure 1 (Dark is a cross-sectional front view showing the state in which the contents are flowing out from this container 1, - Figure 1 (C) is a cross-sectional view showing the state in which the contents have partially flowed out and returned to the normal position. Front view, 2nd
The figure is a sectional front view showing another embodiment of the container 1. 1... Container, 2... Contents, 3... Container body, 4
- Outlet, 5... Air inlet, 40.50... Check valve, 55... Air storage bag. Agent: Patent Attorney Hidetaka Yumoto

Claims (1)

[Claims] 1(1) A container body that contains contents. (2) Provided on the container body. With a spout for pouring out the contents. (3) an air inlet through which outside air flows into the container body as the contents are poured out from the outlet; (4) an air containment bag disposed within the container body and containing all the air flowing into the container body from the air flow 40;
has. At least one of the spout and the air inlet is provided with a check valve, and an amount of air approximately equal to the volume of the contents to be poured out is replaced via the air storage bag. The structure is such that the contents stored in the main body are not exposed to air. A container that prevents the contents from deteriorating. 2. The container according to claim 1, wherein the check valve is provided at the spout, and the contents are poured out from the spout, but outside air does not flow in from the spout. 3. The container according to claim 1, wherein the check valve is provided at the air inlet, allowing outside air to flow in but not allowing it to flow out. 4. The container according to claim 1, wherein the check valve is provided at both the spout and the air inlet. 5. The check valve according to claim 2 or 4, wherein the check valve is a piece of film disposed on the outer wall of the container so as to cover the spout, and a part of the check valve is fixed to the outer wall of the container near the spout. Container as described. 6. The third aspect of the present invention, wherein the check valve is a piece of film arranged on the inner wall of the container so as to cover the air inlet, and a part of the check valve is fixed to the inner wall of the container near the air inlet.
Container as described in Section 1 or Section 4. 7. The container according to claim 1, wherein the capacity of the bag is at least equal to the capacity of the container body.