JP2521972Y2 - Discharge container - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention is, for example, cosmetics such as eyeliners, lip colors, foundations, inks, writing materials such as paints, mayonnaise, tomato ketchup, mustard, cooking oil. The present invention relates to a container for discharging liquids such as cooking materials, machine oil, toothpaste, and the like.

(Prior art) A discharge container configured to discharge by utilizing the suction force of a liquid stored in a storage chamber, a discharge container configured to pressurize the liquid from the outside of the storage chamber and discharge the liquid by exerting a pushing force. There are various discharge containers. An example of the former discharge container is a volume change chamber that changes its volume by a reduction and recovery by the application of an external force, and a valve is opened so that the liquid in the liquid storage chamber is introduced into the volume change chamber when the volume of the volume change chamber is recovered. A first valve serving as a liquid inlet of the volume changing chamber, and a second valve serving as a liquid outlet of the volume changing chamber, which is opened to discharge the liquid of the volume changing chamber when the volume of the volume changing chamber is reduced. , A discharge container having a pressing portion that applies an external force for changing the volume of the volume change chamber, that is, a device provided with a pump mechanism, and an example of the latter discharge container is a shampoo or neutral detergent container. The liquid storage chamber is directly pressurized.

Such various discharge containers can also be classified into types in terms of whether or not what constitutes the liquid storage chamber has the flexibility of decreasing the volume as the liquid is consumed.
A container in which a liquid is stored in a glass container or the like is an example of a type having no softness. The above-mentioned shampoo and neutral detergent containers also have flexibility but utilize elastic restoring properties, and are also examples of the type having no softness here. In general, in the case of a type having no softness, air is intruded in place of consumption of a liquid, or a pressurized gas is stored in a storage chamber in advance.
On the other hand, there are a paint tube and a dentifrice tube as familiar examples of those having softness.

Since the material having this softness does not actively allow air to enter the storage chamber, it is suitable for discharging a liquid or the like that is likely to deteriorate with time. It is of this type that the present invention is directed to.

(Problem to be Solved by the Invention) In order to make the accommodation chamber as flexible as possible, it is preferable to use a bag. The above-described tube may be compared with a bag made of polyethylene or the like containing a liquid seasoning such as instant noodles, or a plastic bag used for shopping.

However, when using such a bag, there are some things to consider. The first is how to get the bag. The above-described tube and the like can be easily obtained by blow molding, but in the case of a bag, it cannot always be manufactured by blow molding. In particular, in the background of the necessity of material selection such as suppression of liquid permeation loss, it is rather impossible to obtain by blow molding. In addition, this point leads to the necessity of studying how to attach the bag body to the exterior body. The above-mentioned tube is exceptional, and in general, this type of discharge container needs to further use a separate outer package because the shape stability of the storage chamber is lacking. According to the blow molding, it is easy to integrally provide such an attachment portion to the exterior body, but as described above, it is not easy. Yet another consideration is how to secure the capacity of the liquid storage chamber. The bag containing the liquid seasoning such as the instant noodles described above has a flat shape. This is fine because the product itself is flat. The same applies to general foundations and the like. However, the flat-shaped bag has a small capacity for the width. And it's not just flat products. In many cases, the discharge container has a shape such as a cylindrical shape or a cylindrical shape. In this regard, the above-mentioned tube still has a waste in shape. When one end is sealed in a palm shape, it becomes wider than the other cylindrical portion, and a general-shaped exterior body has a large amount of waste space. In addition, it must be taken into consideration that the bag may shrink (constriction deformation) so as to inhibit consumption of the liquid while the liquid still remains in the bag. When all of the above conditions are satisfied in the bag, the influence of the weight of the liquid in the bag may not be negligible.

(Means for Solving the Problems) First, the bag is made of a cylindrical body. This can eliminate the restrictions of blow molding. In fact, it can even be made by rolling the film. Of course, if one end is not sealed, it will not contain liquid. This seal may be hand-to-hand as in the tube described above. However, this sealing portion is turned into a square shape by folding back both side ends. This can also reduce the useless space with the exterior body. A mouth member is attached to the other end of the opened bag. It is a port member having a liquid discharge port because it is for discharging liquid. The bag is housed in the exterior body through the mouth member. The bag body may be directly attached to the exterior body, but this mouth member is
It is also used as a part of the means for the last additional point mentioned above. That is, as will be described later, the bag body having such a shape is not only very soft, but also very easily deformed constrictively in shape, so that the bag body unnecessarily shrinks and remains in this mouth member. A rod-shaped body having an irregular cross section for preventing the liquid from being difficult to discharge is provided. It seems to protrude into the bag. Of course, the liquid discharge port of the port member is not blocked.

Therefore, in the present invention, a soft bag whose volume decreases as the liquid is consumed is used as a storage chamber for the liquid to be supplied to the discharge destination, and the bag is further housed inside a separate exterior body. In the discharge container, the bag is formed of a cylindrical body having one end sealed in a palm shape, and both ends of the sealed portion are turned into a quadrangular shape to form a lower end of the bag, A circular mouth member having a liquid discharge port is attached to the mouth on the other end side so that the bag body is fitted to the outside, and this mouth member is attached to the open end of the exterior body, whereby the bag body with respect to the exterior body is The lower end of the mouth member is provided with a rod-shaped body having an irregular cross section that does not block the liquid ejection port of the mouth member so as to protrude into the bag body. The movement of the liquid to the tip is opened only above the liquid discharge port of the port member. A first valve that obtains, a second valve that can only open upwardly disposed at a liquid discharge port of a circular cylinder member that slides with the port member, and a valve between the first valve and the second valve. A volume change chamber formed of a space and having a volume changed by a relative vertical sliding operation of the mouth member and the cylinder member, and a repellent member between the mouth member and the cylinder member. The discharge container is characterized in that the discharge containers are stretched to bias each other.

(Example) An example will be described with reference to the attached FIGS. 1 to 3.

The bag denoted by reference numeral 1 is a bag. Although not shown in FIG. 1, as shown in FIG. 3, the lower end of the cylindrical body is sealed in a joint shape by welding or the like, and the sealed portion is formed into a quadrangular shape on both sides. The end 1a is folded back. Further, a circular mouth member 2 is attached to the mouth on the other end side. Reference numeral 2a indicates a liquid discharge port of the port member 2.

Inside the mouth member 2, a first valve 3 disposed at the liquid discharge port 2a and capable of opening only above the drawing, and a resilient member 4 such as a coil spring which does not hinder opening and closing of the first valve 3 are provided. It is arranged. The repelling member 4 is a circular cylinder member 5 that slides vertically with respect to the mouth member 2.
Is urged upward in the drawing.

A second valve 6 that can be opened only in the upper part of the drawing is disposed at the liquid discharge port 5a at the upper end of the cylinder member 5. Liquid outlet
The second valve 6 of the cylinder member 5 from above the first valve 3 of 2a
The space below the space is a circular volume change chamber 7. A nozzle member (discharge destination) 8 is formed so as to cover the second valve 6.
Is installed.

The portion of the mouth member 2 incorporated as described above is attached to the opening end of the exterior body 9 by appropriate means such as press fitting or screwing. Reference numeral 10 indicates a cap. In use, the cap 10 covered with the cap is removed, and the head of the nozzle member 8 is pressed down against the urging force of the elastic member 4.

That is, this embodiment is an example of a discharge container provided with the above-described pump mechanism. The discharge container that discharges the liquid stored in the storage chamber by applying a suction force is more in the bag body than the discharge container that presses the liquid from outside the storage chamber and presses the liquid to discharge the liquid. The bag body is likely to shrink so that the consumption of this liquid is hindered while the liquid still remains, so it may be suitable for illustration. In addition, since the bag body 1 has a cross section in which the lower side is square and the upper side is rounded, the bag body 1 contracts flatly as shown in FIG. Such unnecessary necking deformation is likely to occur due to the contact.

Therefore, a rod 11 is attached to the lower end of the mouth member 2 by press fitting or the like. As shown in FIG. 2, the rod 11 has a through hole 11a and a wing 11b extending in four directions.
The rod 11 is inside the bag 1, and even if the bag 1 is deformed,
The liquid dischargeability is ensured by the through hole 11a and the gap formed between the wing 11b and the inner wall of the bag 1.

The shape of the rod 11 can be appropriately determined. For example, the pipe shown in FIG. 5 has a pipe shape that is bent from immediately below a portion attached to the mouth member 2. In consideration of the operation of putting the liquid, that is, when storing the liquid in the bag 1, the first bag is sealed in the bag 1 before the lower end is sealed.
First, the mouth member 2 to which the valve is attached is attached, and the tip nozzle portion of the container storing the liquid at the lower end of the bag body 1 is inserted.
It is general that the lower end is sealed after the liquid has been filled in. However, at this time, the rod 11 hardly collides with the tip nozzle portion. In FIG. 5, the omitted upper structure is the same as that of the previous example, and the bag 1 is also shown in a simplified manner, but is the same as that of the previous example.

Further, the structure of the discharge destination portion as the discharge container is also appropriate. For example, the one shown in FIG. 6 has a structure as an applicator. Reference numeral 12 denotes an application portion, which is drawn as a communicating porous urethane in FIG. 6, but may be a brush ear or other appropriate material. In this embodiment, when the knock button 13 protruding from the lower end of the exterior body 9 is pressed, the first button is inserted through the straight cylindrical cylindrical body 11 having a large number of communication holes 11c on the side wall. The valve is displaced against the force of the resilient member 4. Of course, the bag 1 shown in a simplified manner is the same as that in the previous two examples.

(Effect of the Invention) Making the liquid storage chamber as flexible as possible reduces the force required for discharging the liquid, and also makes it easier to suppress the intrusion of air due to the reduced pressure in the storage chamber. There are great advantages. The discharge container of the present invention is
Such a bag can be easily prepared and has a sufficient capacity in shape. Moreover, not only is it possible to store a small amount of waste in a frequently used cylindrical exterior body, and it is advantageous not only in maintaining a three-dimensional shape for a large amount of liquid, but also using such a bag body. The disadvantages caused by the attachment to the outer casing and the efficient consumption of liquids caused by this can be overcome.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view for explaining one embodiment of the present invention,
FIG. 2 is a perspective view of the rod-shaped body in FIG. 1, FIG. 3 is a perspective view for explaining the shape of the bag, FIG. 4 is a perspective view for explaining the deformation of the bag, and FIG. FIG. 6 is a longitudinal sectional view for explaining another embodiment, and FIG. 6 is a longitudinal sectional view for explaining another embodiment. DESCRIPTION OF SYMBOLS 1 ... Bag, 1a ... End part of the sealing part of a lower end part ... 2 ... Port member, 2a ... Liquid discharge port, 3 ... First valve, 4 ... Repelling member, 5 ... Cylinder Member, 5a ... Liquid ejection port, 6 ...
Second valve, 7: Volume change chamber, 8: Nozzle member (discharge destination), 9: Exterior body, 10: Cap, 11: Rod, 11a: Through hole, 11b: Blade Part, 11c …… Communication hole, 12
…… Coating part, 13 …… Knock button.

Claims (1)

(57) [Scope of request for utility model registration] 1. A storage chamber for a liquid to be supplied to a discharge destination,
Using a soft bag that decreases in volume as the liquid is consumed,
Furthermore, in a discharge container in which this bag is housed inside a separate exterior body, the bag is made of a cylindrical body whose one end is sealed in a palm shape, and both end portions of this sealed portion are formed. The bag was folded back to form a quadrilateral shape to form the lower end of the bag, and a circular mouth member having a liquid discharge port was attached to the other end of the bag so that the bag could fit over the bag. By attaching to the opening end of the exterior body, the accommodating of the bag body to the exterior body is performed, and further, on the lower end side of the mouth member, a rod-shaped body having an irregular cross section that does not block the liquid discharge port of the mouth member. ,
A first valve arranged so as to protrude into the inside of the bag body, and further capable of opening the movement of the liquid to the discharge destination portion only above the liquid discharge port of the port member, and the port member; A second valve disposed only at the liquid discharge port of the slidable circular cylinder member and capable of opening only upward, and a space formed between the first valve and the second valve; A volume change chamber whose volume changes due to relative vertical sliding movement with the cylinder member, and a resilient member is stretched between the mouth member and the cylinder member to urge each other. Discharge container characterized.