JPH0699987A - Liquid-holding container - Google Patents

Abstract

PURPOSE:To secure the smooth flow of a liquid toward the discharge port of the liquid by forming two spaces through forming a partition wall between the discharge port and a vent hole in a liquid-holding container having the discharge port of the liquid and the vent hole and by forming, in the partition wall, the channel of the liquid for connecting the two spaces. CONSTITUTION:In a liquid-holding container B having the discharge port 4 of a liquid and a vent hole 2, a partition wall 5 is formed between the discharge port 4 and vent hole 2 so that two spaces K1, K2 are formed; and the channel 6 of the liquid for connecting the two spaces K1, K2 is formed in the partition wall 5. Further, a float 7 for preventing waving of the liquid is caused to float in the space K1 on the vent hole 2 side. As a result, it is possible to prevent waving of the liquid, generation of bubbles and entanglement, also in the dynamic state of the container, to secure the smooth flow of the liquid toward the discharge port.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid holding container for storing a liquid or supplying a liquid from this container, and more particularly to a holding container for paint, ink, etc. (EN) A container suitable for storing and holding in a container, and further for uniformly supplying the container.

[0002]

2. Description of the Related Art For example, in a fuel container in which the container is fixed to a vehicle or the like, there is a problem caused by a dynamic use state. Of these, a particularly important point is a so-called sloshing phenomenon in which the liquid in the container moves to one end due to the shaking of the container in a dynamic use state. this is,
This is because the center of gravity of the liquid in the dynamic use state moves within the container.When supplying liquid such as gasoline to the engine, etc., the supply amount varies depending on the amount of liquid in the container, and uniform supply is expected. You will not be able to do it.

As a measure to solve these problems, in order to prevent the movement of the liquid in the container, a method of solving the problem by filling the inside of the container with a urethane foam is disclosed, for example, in Japanese Examined Patent Publication No. 42-2103. Have been proposed by. This is to fill the urethane foam in the container and store the liquid, and even if the container is in dynamic use, a large movement of the liquid in the container can be avoided, and gasoline etc. in the container can be avoided. It is expected that the engine can be supplied uniformly. In order to optimize the absorption, retention, and supply of the liquid, the urethane foam has been compressed into the volume of 1/3 to 1/5 and inserted into the container.

[0004]

However, this technique also has the following problems. That is, the urethane foam of the volume corresponding to the inner volume of the container is simply filled, and the foam is filled without giving due consideration to the properties of the stored liquid. The effect may not be fully exerted.

In particular, when the liquid in the container is supplied to the outside, unevenness due to the supply is not allowed,
I have not found anything that fully considers this point. In addition, when a foam material is inserted, the foam filled in the container locally causes wrinkles and crevices, which results in inappropriate air passages and variations in foam cell density. Was occurring. Further, since the foam material is inserted into the container, it is essentially impossible to set the porosity to 100%, and it is difficult to completely supply the liquid from the discharge port.

Furthermore, the liquid stored in the container is
There is also a problem that the foam material is affected and the components of the foam material are eluted into the liquid.

[0007]

The summary of the present invention is as follows.
In a liquid holding container having a liquid discharge port and a ventilation port, a partition wall is formed between the discharge port and the ventilation port to form two spaces, and a liquid flow path connecting the two spaces to the partition wall. A liquid holding container characterized in that it is formed, preferably, in the space on the side of the vent, the float for preventing the ripple of the liquid is floated, or the rib for preventing the ripple of the liquid is provided. is there. Further, specifically, a directional orifice whose diameter gradually decreases from the vent side toward the discharge side is provided in the lower part of the partition wall.

A particularly preferable liquid holding container is one in which a synthetic resin communicating foam having a cell number of 50 to 200 cells / 25 mm is provided in the space on the discharge port side, and the synthetic resin communicating foam is a urethane foam. Or melamine foam.

[0009]

According to the present invention, a partition wall is formed between the discharge port and the ventilation port to form two spaces, and especially the space on the discharge port side is made small so that the liquid can be used when the liquid is in dynamic use. To reduce the oscillation of the. And, preferably, a float for preventing the ripples of the liquid is floated or a rib for preventing the ripples of the liquid is provided in the space on the side of the vent hole to reduce the swing of the liquid. Further, the orifice in the lower part of the partition wall provided as a passage for the liquid is gradually made smaller from the vent side toward the discharge side to prevent the backflow of the liquid due to the movement of the liquid holding container. .

Alternatively, even if the orifice is not provided, a synthetic resin communicating foam having a cell number of 50 to 200/25 mm, for example, a urethane foam or a melamine foam is provided in the space on the discharge port side, and a capillary phenomenon is caused. Therefore, it is possible to always supply a constant amount from an extremely fine discharge port by utilizing. If the number of cells of the synthetic resin foam is 50 cells / 25 mm or less, the capillary phenomenon may be interrupted, while the number of cells is 2 or less.
If the number is 00/25 mm or more, a clogging phenomenon may occur, which is not suitable.

The urethane foam may have the cell membrane attached at the time of foaming, but it is particularly preferable to use a so-called open cell without the cell membrane. It is what is done. The open cell foam (three-dimensional reticulated foam) from which the cell film is removed is, for example, immersed in an alkaline solution or an explosive method.

[0012]

The present invention will be described in more detail with reference to the following examples. FIG. 1 shows a liquid holding container A showing a first embodiment of the present invention.
FIG. In the figure, reference numeral 1 is a top plate of the container A, to which a vent hole 2 is provided. On the other hand, a discharge port 4 is formed in the side plate 3 at a position diagonal to the ventilation port 2. Now, an L-shaped partition wall 5 is provided in the container surrounding the discharge port 4, the inside of the container is divided into two spaces K ₁ and K ₂ , and both spaces K ₁ and K ₂ are provided at the lower part of one side thereof. A flow path 6 connecting the two is formed. Generally, the volume of the space K ₁ is larger. In the figure, the arrow indicates the direction in which the container moves.

FIG. 2 is a sectional view showing an example of a dynamic use state of the liquid holding container A. As shown in the figure, the liquid held in the container will slosh in the container, but the sloshing of the liquid in the space K ₂ is relatively smaller than that of the liquid in the space K ₁ , and therefore Air bubbles are relatively rarely generated in the liquid discharged from the outlet 4, and uniform discharge is ensured.

FIG. 3 is a sectional view of a liquid holding container B showing a second embodiment of the present invention. In this figure, the same reference numerals as those in FIG. 1 indicate the same elements (the same applies hereinafter). Now, in this example, the large space K ₁ on the vent side
On the side, the anti-ripple float 7 is suspended on the liquid. Therefore, even if the container swings, the sloshing of the liquid in the space K ₁ is almost eliminated, and the drawbacks such as the inclusion of bubbles in the liquid are eliminated.

FIG. 4 is an enlarged sectional view of a liquid holding container C showing a third embodiment of the present invention. By the way, in this example,
An orifice is provided below the L-shaped partition wall 5 to form the flow path 6. Moreover, the flow path 6 has a cross-sectional shape in which the diameter thereof decreases toward the discharge side space K ₂ . Therefore, it is easy to move from the space K ₁ to the space K ₂ ,
It is difficult to regurgitate. Therefore, even when the container C is placed under a dynamic use condition, the liquid does not come in and out very much, bubbles are not entrained, and the liquid is uniformly discharged from the discharge port 4. This partition wall 5 is preferably a resin plate,
Depending on the type of liquid, for example, for ink or the like, the diameter of the space K ₁ side is 2 to 3 mm, and the diameter of the space K ₂ side is 0.5 to
An orifice (flow path 6) of about 1.5 mm is suitable.

FIG. 5 is a perspective view of a liquid holding container D showing a fourth embodiment of the present invention, and FIG. 6 is a sectional view thereof. In this example, two ribs 8 ₁ and 8 ₂ are formed between the ventilation port 2 and the discharge port 4 at right angles to the direction in which the container D is mainly swung. Of course, a small gap is formed between the ribs 8 ₁ and 8 ₂ on the lower side,
It is a liquid flow path 6. Of course, the flow path 6 may be an orifice as described above.

In this container D, since the space K ₁ is divided into three parts by the ribs 8 ₁ and 8 _{2 with} respect to the swing direction, the phenomenon of liquid sloshing can be suppressed to a very small level. become.

FIG. 7 is a perspective view of a liquid holding container E showing a fifth embodiment of the present invention, and FIG. 8 is a sectional view thereof. The container itself of this example has the same structure as the container shown in FIG. 1, but the space K ₂ is filled with the urethane foam 9. The used foam material is 50-200 cells /
Any synthetic resin foam having open cells of 25 mm may be used, and this may be a melamine foam.

In this example, no sloshing phenomenon occurs on the space K ₂ side, bubbles are not mixed in the liquid, and the liquid is discharged from the discharge port 4 by the capillary phenomenon of the foam. There is a feature that the amount is always constant.

Of course, the filling of the foam 9 may be performed separately or simultaneously in the spaces K ₁ and K ₂ of each of the above-mentioned examples.

[0021]

INDUSTRIAL APPLICABILITY The present invention is provided with a partition wall for dividing the inside of the liquid holding container, and further, by providing a float, a rib, and an orifice, even when the container is in a dynamic state, liquid rippling and bubble formation are prevented. It is possible to prevent generation and entrainment, and to secure a smooth liquid flow toward the discharge port.

[Brief description of drawings]

FIG. 1 is a perspective view of a liquid holding container A showing a first embodiment of the present invention.

2 is a cross-sectional view showing an example of a dynamic use state of the liquid holding container A. FIG.

FIG. 3 is a sectional view of a liquid holding container B showing a second embodiment of the present invention.

FIG. 4 is a sectional view of a liquid holding container C showing a third embodiment of the present invention.

FIG. 5 is a perspective view of a liquid holding container D showing a fourth embodiment of the present invention.

6 is a cross-sectional view of FIG.

FIG. 7 is a perspective view of a liquid holding container E showing a fifth embodiment of the present invention.

8 is a sectional view of FIG. 7.

[Explanation of symbols]

A, B, C, D, E ... Liquid holding container, K ₁ , K ₂ ... Space, 1 ... Top plate, 2 ... Ventilation port, 3 ... Side plate, 4 ... Discharge port, 5 ... partition wall, 6 ‥‥ passage, 7 ‥‥ front - door, 8 _1, 8 ₂ ‥‥ rib, 9 ‥‥ urethane follower - No.

Claims (6)

[Claims] 1. A liquid holding container having a liquid discharge port and a ventilation port, wherein a partition wall is formed between the discharge port and the ventilation port to form two spaces, and the partition wall has two spaces. A liquid holding container, characterized in that a liquid flow path is formed. 2. The liquid holding container according to claim 1, wherein a float for preventing liquid ripple is suspended in the space on the side of the vent hole. 3. The liquid holding container according to claim 1, wherein a rib for preventing liquid ripple is provided in the space on the side of the vent hole. 4. The liquid holding container according to claim 1, wherein a directional orifice whose diameter gradually decreases from the vent side toward the discharge side is provided in the lower portion of the partition wall. 5. The number of cells is 50 to 20 in the space on the discharge port side.
The liquid holding container according to claim 1, wherein 0/25 mm synthetic resin communicating foam is provided. 6. The synthetic resin communicating foam is a urethane foam.
The liquid holding container according to claim 1, which is a foam or a melamine foam.