JP4684206B2 - Container - Google Patents

Description

  The present invention relates to a container in which a container such as a liquid (including a semi-fluid) or a gas is housed and can be stably supplied to the outside.

  2. Description of the Related Art Conventionally, as a container that contains a container such as a liquid, a sheet in which a synthetic resin sheet (plastic film) is stacked and welded (thermally welded) is known. Such containers are used in various fields such as food, daily necessities such as cosmetics and sanitary goods, office supplies, and medical fields. In addition, in such a container, a spout integrally formed with synthetic resin is integrally heat-welded to the synthetic resin sheet, and the liquid contained inside is injected through the spout. Some are also known.

  For example, Patent Document 1 discloses a liquid storage bag used for medical purposes. This liquid storage bag has a structure in which a liquid outlet is formed below and the liquid stored therein is discharged by gravity.

  For example, Patent Document 2 discloses a so-called refillable flexible container that contains a container used in the daily necessities field, mainly a liquid detergent or the like. As is well known, the internal liquid is taken out from the flexible container by forming a spout by breaking a predetermined position and pressing the side of the container with the spout facing downward. Done in In addition, as described above, such a container is also known to have a structure in which spout is welded (thermally welded). By attaching such a spout, liquid inside can be easily poured. It is possible to produce an action and effect that it is excellent in handleability.

As described above, the container in which the synthetic resin sheets are stacked and welded is used in various fields because it can be manufactured at a low cost. It is done by gravity and hand pressure while facing downward.
JP-A-11-285518 JP 2003-160150 A

  Recently, various usage modes have been considered for the above-described container. For example, there is a usage mode in which the container is set in a device (external device) that takes out the liquid stored inside and supplies it to a predetermined location. It is considered. Usually, in such an external device, when the liquid stored in the container is used up, a new container can be set at a predetermined position, or the liquid stored in another part can be set. In some cases, the container may be reinjected.

  However, in such an external device, there is a possibility that the above-described conventional structure cannot be used as it is. In other words, if the basic structure of the external device (for example, installation space restrictions) prevents the outlet of the container from being directed downward, stable liquid extraction (supply) may not be possible. There is.

  Therefore, when the spout is directed to the side or upward, a device (a device having a pump function, a pressing member, etc.) for stably taking out the liquid in the container is installed on the external device side. As a result, there arises a problem that the cost of the external device increases and the usability deteriorates.

  Furthermore, depending on the configuration and usage of the external device, it is possible to supply not only one type of liquid but also a plurality of liquids. In this case, installing a plurality of the above-mentioned containers for each liquid causes waste in terms of space. Further, depending on the basic configuration of the external device, additional containers for stably supplying a plurality of liquids. As described above, there is a problem that the cost of the external device is increased and the usability is deteriorated.

  The present invention has been made by paying attention to the above-described problems, and can stably pour out the contents regardless of the posture change, and can stably supply even a plurality of liquids. An object is to provide a container.

  In order to achieve the above-described object, a container according to the present invention includes a first container having a first injection port and a first spout, and a second container installed in the first container. The second container is formed by stacking and welding flexible synthetic resin sheets, and a main body capable of accommodating the contents, and attached to the main body so that the contents can be injected into the main body. And a second pouring port that allows the contained material to be poured out.

  In the container having the above-described configuration, for example, the liquid (first liquid) is stored in the first container through the first inlet, and in this state, the second container includes the first container. When liquid or the like is injected through the two inlets, the main body formed of a flexible synthetic resin sheet swells in the second container, whereby the liquid ( The first liquid) can be poured out through the first spout. That is, regardless of the direction of the first spout (the posture change of the main body), the liquid (first liquid) can be poured out from the first spout in a stable state. In this case, the first liquid can be dispensed by the volume of the liquid or the like injected into the second container.

  For example, when the first liquid is injected into the first container again through the first inlet by setting the injection into the second container as a liquid (second liquid). The second liquid injected into the second container can be poured out through the second pouring port. That is, the container itself can be used as a multi-liquid (two-liquid) supply device by such injection and extraction of a plurality of liquids (first liquid and second liquid).

  According to the present invention, it is possible to obtain a container that can stably pour out an object regardless of a change in posture.

Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings.
1 to 4 show an embodiment of a container according to the present invention, FIG. 1 is a perspective view showing an overall configuration, FIG. 2 is a perspective view showing a configuration of a second container, and FIG. FIG. 4 is a cross-sectional view of a central portion of the second container, and FIG. 4 is a cross-sectional view illustrating a state in which a liquid is stored in the second container.

  The container P according to the present embodiment is configured to contain a liquid, and specifically, a first container that contains a first liquid so that a plurality of liquids can be poured out. (Outer container) 20 and a second container (inner container) 1 that is installed in the internal space of the first container 20 and accommodates the second liquid.

  The first container 20 may have a so-called flexibility structure formed by stacking and welding flexible synthetic resin sheets, or may be composed of a hard material such as metal or plastic. However, it is set as appropriate depending on the application, the configuration of the external device, and the like. In the present embodiment, the first container 20 includes a cylindrical main body 23 that is formed in a substantially cylindrical shape by a hard material, and the upper and lower walls 21 and 22 have a first main body 20 in the cylindrical main body 21. A first inlet 21a for injecting the first liquid and a first outlet 22a for discharging the first liquid are formed. In this case, the first inlet 21a and the first spout 22a may be formed on the same wall.

  When the first container 20 is formed by stacking and welding flexible synthetic resin sheets, the first inlet and the first spout are welded between the sheets, and are circular in cross section or elliptic in cross section. It can be constituted by a so-called spout having a welding surface having a shape.

  A second container 1 in which a second liquid is stored is installed in the internal space in the first container 20. The second container 1 has a structure in which flexible synthetic resin sheets are stacked and welded, and a second liquid is injected into the second container 1 so that it expands. The 1st liquid accommodated in the 1 container 20 can be poured out from the 1st spout 22a.

  In this case, the second container 1 may be simply configured in a bag shape in which sheets made of synthetic resin are stacked, but in the present embodiment, the second container 1 has the following structure. The second liquid injected into the body can be automatically dispensed.

  Here, the structure of the second container 1 will be described in detail with reference to FIGS. 2 to 4.

  The second container 1 is formed by stacking synthetic resin sheets (plastic film) 3a formed in a substantially rectangular shape having flexibility, and thermally welding the periphery with a heat bar or the like (the welded portion is indicated by hatching). ), And has a main body 3 configured in a bag shape. A second liquid (which may be a semi-fluid) is accommodated inside the main body 3, and the accommodation amount (the size of the sheet 3a) is set according to the application and the like. Is done. As shown in the figure, when the periphery of the sheet 3a is heat-welded, side sheets serving as the side walls 3d may be heat-welded on both sides, thereby increasing the amount of accommodation. .

  A second spout 5 for pouring the liquid is integrally attached to the heat welding region around the main body 3. The second spout 5 is integrally formed of a synthetic resin such as plastic, and when the sheet 3a is heat-welded, it is disposed between the sheets 3a and is sandwiched between the sheets. For this reason, the second spout 5 is integrally formed with a welded portion 5a having a substantially circular (elliptical) cross section so that the sheet 3a is thermally welded. In addition, a second inlet 7 having the same configuration is attached to the edge on the side facing the second outlet 5 in order to fill the main body with the second liquid. The second injection port 7 is integrally formed with a welded portion 7 a having a substantially circular (elliptical) cross section, and is thermally welded between the sheets 3 a like the second spout 5.

  Plate members 9 having the same shape are attached to the inner surface of the sheet 3a constituting the main body 3, respectively. The plate-like member 9 is integrally formed of metal, plastic or the like, and has a shape that is attached over substantially the entire inner surface of the sheet 3a. In this case, the shape of the pair of plate-like members 9 is not particularly limited, and may be configured in different shapes.

  The pair of plate-like members 9 are provided with urging means for urging the pair of plate-like members 9 in a direction in which they are in close contact with each other. The urging means of the present embodiment is configured by forming protrusions 9a integrally with the end portions of the plate-like member 9, and stretching a tension spring 10 between the protrusions 9a. That is, the plate member 9 attached to the inner surface of the sheet 3a in this way is urged in a direction in which the plate member 9 is attracted to each other by the tension spring 10, so that the liquid contained in the main body 3 is indicated by the arrow in FIG. As shown, a pressing force that can be forced out through the second outlet 5 is applied.

  Therefore, by opening the second pouring port 5 from the closed state, the second liquid accommodated therein can be poured out from the second pouring port 5 by the pulling force of the plate-like members 9. . As a result, the second liquid can be poured out from the second outlet 5 in a stable state regardless of the direction of the second outlet 5 (the posture change of the main body 3). Then, as shown in FIG. 3, when the pair of plate-like members 9 are brought into close contact with each other by the urging force acting on the plate-like member 9, all the second liquid in the main body 3 is poured out.

Next, the effect | action of the container P comprised as mentioned above is demonstrated.
First, in the configuration shown in FIG. 1, it is assumed that the first container 20 is filled with the first liquid and the second container 1 is empty. In this state, as shown in FIG. 5, when the second liquid is injected into the second container 1 through the second inlet 7 (the second spout 5 is closed). The main body 3 gradually expands, and the first liquid accommodated in the first container 20 is discharged through the first spout 22a due to the volume change. That is, regardless of the direction of the first spout 22a (change in the posture of the main body), the first liquid can be poured out from the first spout 22a in a stable state. In this case, the first liquid can be dispensed by the volume of the second liquid injected into the second container 1.

  Then, from the state shown in FIG. 5 (the state in which the second liquid has been injected into the second container 1 and the first liquid in the first container 20 has been poured out accordingly), FIG. As shown, by injecting the first liquid into the first container 20 via the first inlet 21a, the second liquid injected into the second container 1 is changed to the second liquid. It is also possible to pour through the spout 5. That is, as shown in FIG. 5 and FIG. 6, the container P is supplied with a plurality of liquids (two liquids) by the injection / pumping operation of the plurality of liquids (first liquid, second liquid). It can be used as a multi-liquid supply device that can be sequentially supplied.

  Note that, as described above, the second container 1 is configured so that the second liquid can be automatically dispensed by the pair of plate-like members 9 that are biased in the direction in which they are in close contact with each other. Even if the first liquid is not injected into the first container 20, the second outlet 5 can be poured out from the closed state.

  For this reason, in the above-described configuration, it is preferable to provide the second pouring outlet 5 with a control means 12 that controls the amount of liquid dispensed. The control means 12 can be constituted by, for example, a nozzle that gradually reduces the diameter of the opening of the second spout 5. According to such a nozzle, as shown in FIG. 4, after the second liquid is accommodated in the main body 3, the liquid is maintained at a constant flow rate by opening the second spout 5 during use. Can be dispensed in small portions. In this case, the flow rate can be appropriately adjusted according to the biasing force of the tension spring 10, the shape of the plate-like member 9, the diameter of the second spout 5, and the like.

  Moreover, the control means 12 can be comprised by the pressure valve provided in the 2nd spout 5, for example. Such a pressure valve has a structure that opens when the pressure in the main body 3 exceeds a predetermined value. For example, as shown in FIG. 4, the second pressure valve 7 enters the second main body 3 through the second inlet 7. When the liquid is filled and the pair of plate-like members 9 are separated from each other and the pulling force (force for pushing out the liquid) by the tension spring 10 exceeds a predetermined value, the liquid is released. Of course, in such a case, it is also possible to pour out the second liquid in the second container 1 by a change in internal pressure caused by injecting the first liquid into the first container 20.

  As described above, in the configuration in which the second liquid is injected from the second inlet 7, the second inlet 7 is opened only in the direction in which the liquid can be filled in the main body 3 (the backflow does not flow back from the main body 3). Thus, it is preferable to provide a check valve 13.

  The structure of the above-described pressure valve and check valve is generally known, and detailed description thereof is omitted here. Further, the control means 12 and the check valve 13 described above may be provided in a liquid flow path on the external device side (not shown). In such a configuration, the second spout 5 or the second inlet 7 is constituted by an opening through which a liquid flows out.

  As described above, the second container 1 that can automatically dispense the second liquid by the pair of plate-like members is installed in the first container 20. This configuration can be modified as appropriate. Hereinafter, different embodiments of the second container will be described.

  7 to 9 show a second embodiment of the second container, in which FIG. 7 is a plan view, FIG. 8 is a cross-sectional view of the central portion, and FIG. It is sectional drawing shown.

  In this embodiment, the pair of plate-like members 9A attached to the main body 3 and applying pressure to the second liquid is made of a shape memory alloy. The plate-like member 9A is formed in a substantially rectangular shape as shown in FIG. 7, and the shape is memorized so as to be separated from each other as shown in FIG. 8, and is attached to the inner surface of the sheet 3a. Has been.

  In such a configuration, when the second liquid is injected into the main body 3, the shape of each plate-like member 9 </ b> A changes to a flat plate shape due to the hydraulic pressure in the main body 3 as shown in FIG. 9. At this time, the plate-like member 9A cannot return to the original shape shown in FIG. 8 because the second spout 5 is closed, but each plate-like member can be opened by opening the second spout 5. The member 9A can exert a force to return to the original shape shown in FIG. 8, and a pressing force that flows out from the second spout 5 acts on the second liquid in the main body 3. It becomes.

  According to such a configuration, it is only necessary to attach a plate-like member (formed of a shape memory alloy) to the inside of the sheet 3a constituting the main body 3, so that the structure can be simplified, Cost can be reduced. Of course, even in such a configuration, the tension spring 10 as shown in the above-described embodiment may be provided.

  10 and 11 are views showing a third embodiment of the second container, in which FIG. 10 is a plan view and FIG. 11 is a cross-sectional view showing a state in which a liquid is contained.

  The second container 1 in this embodiment has a configuration in which a pair of plate-like members that apply pressure to the internal liquid (second liquid) is attached to the outer surface of the sheet 3 a of the main body 3. . In this case, the plate-like member 9B attached to each outer surface of the facing sheet 3a is formed with a protruding portion 9a ′ protruding from the edge of the sheet 3a, and the protruding spring 9a ′ has a tension spring 10a. Is stretched.

  In such a configuration, when the second liquid is accommodated in the main body 3 as in the above-described embodiment, each plate-like member 9 resists the urging force of the tension spring 10 by the hydraulic pressure, as shown in FIG. However, since the 2nd spout 5 is closed, both cannot adhere. Then, as described above, by opening the second spout 5, the plate-like members 9 are urged in a direction in close contact with each other, so that the second liquid in the main body 3 is the second pour. It flows out from the outlet 5.

  According to such a configuration, the plate-like member 9B that applies pressure does not come into contact with the second liquid accommodated in the main body 3, so that the malfunction due to the type of the second liquid or the plate-like member It is possible to prevent a change in the composition of the liquid due to contact with the member or the tension spring. Moreover, since it is the structure which attaches the plate-shaped member 9B and the tension | pulling spring 10 to the exterior of the sheet | seat 3a, manufacture becomes easy and it becomes possible to reduce cost.

  Of course, the structure which attaches a pair of plate-shaped member 9A comprised with the shape memory alloy mentioned above to the exterior of the sheet | seat 3a may be sufficient.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, about the 1st container 20 which comprises the container P, and the 2nd container 1 accommodated in this, it is possible to make it various shapes and magnitude | sizes. In particular, since the structure is simple, it can be used as a pump (liquid supply device) that is inexpensive and reduced in size and weight. Also, the shape of the plate-like member that applies pressure to the second liquid in the second container, the configuration of the urging means, and the attachment position can be modified as appropriate. Furthermore, the positions where the inlets 21a and 7 and the outlets 5 and 22a are provided and the configuration thereof can be modified as appropriate.

  In the above-described embodiment, the container that supplies two liquids has been described as an example. However, what is injected is not limited to a liquid, and may be a gas. For example, liquid may be stored in the second container and gas may be injected into the first container. Further, a plurality of second containers may be installed inside the first container so that three or more kinds of liquids can be supplied.

The perspective view which showed one Embodiment of the container which concerns on this invention. The perspective view which shows the structure of the 2nd container installed in a 1st container. Sectional drawing of the center part of a 2nd container. Sectional drawing which showed the state which accommodated the liquid inside the 2nd container. The perspective view explaining the operation | movement at the time of pouring out the 1st liquid from a container. The perspective view explaining the operation | movement at the time of pouring out the 2nd liquid from a container. The top view which shows 2nd Embodiment of a 2nd container. Sectional drawing of the center part of the 2nd container shown in FIG. Sectional drawing which showed the state which accommodated the liquid in the inside of the 2nd container shown in FIG. The top view which shows 3rd Embodiment of a 2nd container. Sectional drawing which showed the state which accommodated the liquid in the inside of the 2nd container shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 2nd container 3 Main body 3a Sheet 5 2nd spout 7 2nd inlet 9, 9A, 9B, 9C Plate member 10 Tension spring 12 Control means 13 Check valve 20 1st container 21a 1st inlet 22a First spout P container

Claims (4)

A container having a first container having a first inlet and a first spout; and a second container installed in the first container;
The second container is formed by stacking and welding flexible synthetic resin sheets, and a main body capable of accommodating the contents, and a second injection port attached to the main body and allowing the contents to be injected into the main body. And a second spout for allowing the container to be poured out, and a biasing means attached to the main body so as to oppose the main body and to apply pressure to the container contained in the main body. A pair of plate-shaped members provided,
It said pair of plate members, container, characterized that you have been attached to the inner surface of the body. The first container contains a first liquid,
The first liquid can be poured out from the first spout by injecting the second liquid into the second container through the second inlet. The container described. The container according to claim 2, wherein a control means for controlling the amount of the second liquid dispensed is provided at the second pouring port of the second container. The second container contains a second liquid,
The second liquid can be poured out through the second pouring port by injecting the first liquid into the first container through the first pouring port. The container according to claim 1 .

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