JP6004672B2 - Container - Google Patents

Description

  The present invention relates to a container for containing a fluid to be dispensed (for example, a fluid having high viscosity).

  2. Description of the Related Art Conventionally, as disclosed in, for example, Patent Document 1, a container that can store a fluid (hereinafter referred to as a container) having a high viscosity such as printing ink is known. Such a container is loaded in a predetermined position of an external device such as a printer, and the container is poured out by a suction mechanism provided in the external device and supplied to the predetermined position. . Specifically, the container disclosed in Patent Document 1 includes a container body formed in a bag shape with a thin-film resin film, and enclosed in the container body, and the container body is shaped like a box. And a support member having a spout protruding from the container main body.

  In the configuration described above, when suction is performed from the spout with a pump or the like, the thin film-like resin film is inverted so as to be turned back into the support member with the outflow of the contents, and the contents are completely poured out. Then, the resin film changes into a state of entering the inside of the support member.

  By the way, since the above-mentioned container has a structure in which the surface of the support member and the container main body are in close contact with each other, the adhesiveness between the two tends to be insufficient, for example, wrinkles enter the container main body. There is a possibility that the stored matter remains in the gap (the outer surface side of the support member) and waste is generated in the stored item. In addition, the container body formed of a resin film has a box-shaped structure (bottomed structure) in consideration of shape retention, but in such a shape, it enters the inside of the support member during suction. However, the adhesiveness with the inner surface of the support member is ultimately inferior, and as a result, the contents are likely to remain on the inner surface side of the support member.

  In view of this, the present applicant has proposed a structure in which the shape of the container body is changed along the dispensing direction so that the contained items can be poured out without waste when the contained items are poured out by such a suction action. (See Patent Document 2).

JP 2001-199455 A Patent No. 4885265

  In any of the containers having the above-described configuration, since at least a part of the container (container) that stores the container is made of a soft material that can be deformed as the container is dispensed, Therefore, in the case of transporting and transporting, the soft accommodating portion may be damaged by an impact or the like. This is because the conventional container of this type does not consider any protection against breakage of the soft housing portion that accommodates the object, and some protective measures against the breakage of the housing portion are urgently desired. .

  The present invention has been made paying attention to the above-described problems, and an object thereof is to provide a container that can pour out stored items without waste and can protect a soft storage portion that stores the stored items from impact. To do.

In order to achieve the above-described object, a container according to the present invention includes a spout capable of pouring a stored material in a central region on one end side, a circular opening on the other end side, and the one end side A cylindrically-shaped first housing part whose cross section changes from a circular shape to an elliptical shape toward the surface, and a material to be welded along the circular opening of the first housing part, A second storage part formed into a bag shape that is non-self-solid with a thin film that enters into the first storage part and adheres closely to the inner surface of the first storage part, and the circular opening of the first storage part And a buffer layer that covers the entire outside of the second housing portion and protects the second housing portion from impacts between the second housing portion and the second housing portion. It includes a part, wherein the exterior portion, press the receiving material from the spout by the outside air Inlet to allow out is formed, the outer portion is constituted by a bag-like film, the buffer layer formed between the second housing part is an air layer, the second The housing portion is in contact with the outside of the housing body through the buffer layer and the exterior portion in all directions .

  According to the above-described configuration, the soft second accommodating portion formed in a bag shape that is non-self-solid with the thin film is protected on the outside by the buffer layer by the exterior portion, so that it is being transported or transported. For example, breakage and damage of the second housing portion can be prevented. In addition, the container is poured out by injecting outside air (for example, gas such as air or gas) from the inlet formed in the exterior part into the exterior part, thereby forming the second accommodation part formed in a bag shape. Enters the first accommodating portion by the pressure, and the contents can be taken out from the spout formed in the first accommodating portion. In this case, since the second accommodating portion is configured as a non-self-solid, when the welded portion is welded along the circular opening of the first accommodating portion, the cross-sectional shape is circular at the welded portion. As the distance from the welded portion increases, the cross section changes to an elliptical shape. In consideration of such a shape, the first storage portion has a cross-sectional shape changed from a circular shape to an elliptical shape from the welded portion toward the spout side. When it enters the first housing portion, it comes into close contact with the inner surface thereof, and the second housing portion can be efficiently poured out without wrinkles or the like.

  Moreover, since the welding part with the 2nd accommodating part is comprised circularly by the 1st accommodating part, when extruding and pouring a thing, a crush etc. do not arise, and also 1st The storage portion has a configuration in which the basic shape changes from a circular cross-section to an elliptical cross-section, and the entire inner surface is configured as a curved surface, so that it is difficult for the storage to remain when the stored item is pushed out.

In the above-described configuration, the exterior portion may be configured as a bag-shaped film and an air layer (buffer layer) may be formed between the exterior portion and the second storage portion.
Or you may comprise the said exterior part by the molded article of the synthetic resin used as a buffer layer so that the said 2nd accommodating part may be covered.

  According to the container of the present invention, it is possible to obtain a container that can pour out the stored material without waste and can protect the soft storage portion that stores the stored material from impact.

The perspective view which shows one Embodiment of the container which concerns on this invention. (A) is a side view of a container including a partial cross-section, and (b) is a partial enlarged cross-sectional view of a portion X in (a). (A) is a front view of the container in a state where the exterior part is removed, and (b) is a side view of the container in a state where the exterior part is removed. 3A is a cross-sectional view taken along the line AA in FIG. 3A, FIG. 3B is a cross-sectional view taken along the line BB in FIG. 3B, and FIG. Sectional drawing along CC line. The figure which shows typically the state which filled the buffer layer with the air in the container shown in FIG. (A)-(f) is a figure which shows the deformation | transformation state of the 2nd accommodating part at the time of accommodating a highly viscous accommodation thing in the container shown in FIG. 1, and pressing out from a spout.

  1-4 is a figure which shows one Embodiment of the container which concerns on this invention, FIG. 1 is a perspective view of a container, FIG. 2 (a) is a side view of a container including a partial cross section, FIG. 2 (b) is a partially enlarged sectional view of the portion X in FIG. 2 (a), FIG. 3 (a) is a front view of the container with the exterior part removed, and FIG. 3 (b) is a state with the exterior part removed. 4A is a cross-sectional view taken along the line AA in FIG. 3A, and FIG. 4B is a cross-sectional view taken along the line BB in FIG. 3B. FIG. 4C is a cross-sectional view taken along the line CC of FIG.

  The container 1 according to the present embodiment is configured to store a fluid with high viscosity such as ink (hereinafter referred to as a container), and has a circular cross section (welded portion side) as described later. A cylindrical first accommodating portion 2 that changes from an elliptical shape to a spout shape (a spout side), and a bag-like shape welded along the entire circumference of a circular opening 2 f below the cylindrical first accommodating portion 2. The second accommodating portion 3 is welded (fixed) along the entire circumference of the circular opening 2 f below the first accommodating portion 2, and is disposed so as to cover the entire outside of the second accommodating portion 3. The bag-shaped exterior part 7 is provided. In this case, an inlet 7 a is formed at the lower end of the exterior portion 7 so that outside air (air, gas, etc.) can be injected therein.

  The first accommodating portion 2 is formed with a spout 2a on the central axis on one end side through which the contents can be poured out. In the present embodiment, the spout 2a is constituted by a screw cap, and the contents can be sealed and poured out by detaching a cap (sealing member) (not shown). That is, when the container 1 is actually used, the container 1 is loaded in a predetermined location of the external device with the sealing member removed, and the contents are poured out by the pressing force of the injected outside air as will be described later. It is. In addition, the spout 2a may not only pour out the contents, but may also have a function as a filling port for filling the contents first.

  The 1st accommodating part 2 is integrally molded (blow molding, injection molding, etc.) by plastic materials, such as polyethylene, polystyrene, a polypropylene, a polyvinyl chloride, for example, and is comprised with the manufacturing method and material which can be manufactured at low cost. Has been. Moreover, about the thickness, even if the bag-shaped 2nd accommodating part 3 is reversed and extruded inside at the time of pouring, the shape is maintained (for example, 0.8 mm-2.0 mm) About)

  Moreover, regarding the outer shape of the first housing portion 2, the cross section changes from a circular shape to an elliptical shape from the welded portion 2d with the bag-like second housing portion 3 toward the spout 2a side. . As will be described later, this is because, when the outside air is injected into the exterior portion 7 from the inlet 7a and the stored item is discharged from the spout 2a, the second portion enters (is pushed out) into the first storage portion 2. It is for making it respond | correspond with the cross-sectional shape of the accommodating part 3. That is, since the bag-like second accommodating portion 3 is configured as a non-self-solid body (a state in which the three sides of the side portion and the bottom portion are welded) that is easily manufactured, as described later, the first This is because, when welded along the circular opening 2f of the housing portion 2, the cross-sectional shape becomes circular at the welded portion 2d, but the cross-section changes to an elliptical shape as the distance from the welded portion increases.

  Thereby, when the bag-like second accommodating portion 3 is reversed and enters into the cylindrical first accommodating portion 2 by the pressing action by the injected outside air, the first accommodating portion 2 does not cause wrinkles or the like. It becomes possible to pour out the contents efficiently from the spout 2a. In this case, the shape change is not particularly limited, but it is preferable to change the shape gradually and gradually rather than abruptly changing from a circle to an ellipse. That is, it is preferable that a large step is not formed between the two.

  Further, the shape of the first accommodating portion 2 is not particularly limited, but in the present embodiment, as shown in FIGS. 1 and 3, a circle is used so that the contents can be effectively poured out. A curved portion 2b that gradually decreases in diameter is formed from the upper end side of the circumferential side wall toward the spout 2a located on the central axis. And it is preferable to form the radial protrusion 2c in the inner surface of this curved part 2b so that it may extend toward the spout 2a. The radial protrusions 2c constitute a flow path guide so that the contained material can effectively move toward the spout 2a when the contained material is poured out, and can be integrally formed during molding. It is. In this case, the specific extension length, interval, and height of the radial protrusions 2c can be appropriately modified according to the size of the first storage part 2, the type (viscosity) of the storage object, and the like. It is. When such a radial protrusion 2c is formed, a flow path toward the spout 2a can be easily secured, and the contained material can be efficiently poured out.

  In addition, about the curved part 2b formed in the above-mentioned cylindrical 1st accommodating part 2, it is in the notch part 3d (refer FIG. 3 (a)) mentioned later formed in the bag-shaped 2nd accommodating part 3. FIG. It only needs to be compatible, and can be appropriately modified. In other words, when the container is configured to be able to move evenly toward the spout 2a when subjected to a pressing action by outside air injected from the inlet 7a, the shape thereof can be appropriately modified. is there.

  As described above, the opening end portion of the bag-like second housing portion 3 is welded to the first housing portion 2. In this case, at least the circular opening 2 f is formed in the same diameter over the predetermined length L in the first housing portion 2, and the bag-like second housing portion 3 is formed of the first housing portion 2. It is welded to the outer peripheral surface of a region having the same diameter (within a predetermined length L and the welded portion 2d is configured within this range). If the opening 2f in the welded portion 2d is configured in such a circular shape, it is possible to prevent occurrence of crushing or the like in this region when pushing out the contents to be described later.

  Specifically, the welding portion 2d may be, for example, about 5 mm to 15 mm, and the opening region of the second housing portion 3 is covered here, and then heat welding is performed using a ring-shaped heat bar or the like. The second housing part 3 can be easily welded to the first housing part 2.

  Further, the first accommodating portion 2 is formed with a pair of protrusions 2e projecting outward at an interval of 180 degrees in an area where the second accommodating portion is welded. By forming such a pair of protrusions 2e, as described above, when the second housing 3 is welded by the ring-shaped heat bar, an unwelded region with respect to the welded portion 2d can be eliminated, and the seal It becomes possible to stabilize the state.

  In addition, the bag-like second housing part 3 of the present embodiment is a thin film having flexibility (such as a thin film having a thickness of about 0.05 mm to 0.15 mm) such as polyethylene, polypropylene, and polyvinyl chloride. For example, a laminated film having a seal layer made of polyethylene) and is formed in a bag shape around the periphery of the film, so that, for example, two thin film films are stacked around the periphery so that the cost can be reduced. It is configured as a welded three-side seal bag.

  In addition, the bag-like second accommodating portion 3 is open at one end and is flat at the other end so that it can be welded to the outer peripheral surface (welded portion 2d) of the circular opening 2f portion of the first accommodating portion 2. The bottom portion is not formed (non-self-solid structure) (the welding region 3A is indicated by slanting lines), and thereby, the accommodation object accommodation space S1 communicating with the inside of the first accommodation portion 2 (FIG. 2). Further, the bag-like second accommodating portion 3 has a shape in which a corner on the end side opposite to the welded portion 2d is cut out. Specifically, the shape of the side surface is not rectangular, but as shown in FIG. 3A, the corner on the end side is cut into a curved shape so as to correspond to the curved portion 2b of the first housing portion 2. By notching (forming the notch portion 3d), a corner portion of approximately 90 degrees or less is not formed between the bottom edge 3a and the lateral edge 3b inside the housing. Therefore, it becomes difficult for the second storage portion 3 to be in close contact with the inner surface of the first storage portion 2 in the state where wrinkles are generated, and the stored object can be pushed out as much as possible.

  Thus, by forming the notch 3d on the end side of the second storage bag 3, it is possible to reduce the possibility that the stored item remains in the corner.

  Note that the internal volume (volume) of the bag-like second housing part 3 is preferably set to be the same (including substantially the same) as the internal volume of the cylindrical first housing part 2. As a result, the second accommodating portion 3 is subjected to the action of the injected outside air, and the accommodated material flows out from the spout 2 a, so that the second accommodating portion 3 enters the internal space of the first accommodating portion 2. When the inner surface of the second housing part 3 comes into close contact with the inner surface of the first housing part 2 while being pushed out in reverse, the bottom of the second housing part is set by setting both to the above-described volume relationship. The edge 3a can be positioned near the opening 2A on the container portion side of the spout 2a, and it becomes possible to pour out the contents effectively and without waste.

  That is, when the internal capacity of the second storage part 3 is larger than that of the first storage part 2, the internal space of the first storage part 2 is reversed while the second storage part 3 is reversed with the outflow of the stored items. When pushed out, the bottom edge 3a of the second accommodating part 3 is bent, and the tendency to block the opening 2A on the accommodating part side of the spout 2a is increased, and thus the contents are not discharged from the spout 2a. Therefore, there is a high possibility that the contents will remain in the vicinity of the opening 2A on the container side of the spout 2a.

  On the other hand, if the internal volume of the second storage unit 3 is less than that of the first storage unit 2, the internal space of the first storage unit 2 is reversed while the second storage unit 3 is reversed with the outflow of the stored items. When pushed out, the distance between the bottom edge 3a inside the second housing portion 3 and the opening 2A on the housing portion side of the spout 2a is separated, thereby acting on the second housing portion 3. There is a high possibility that the pressing force of the outside air is not transmitted to the stored item, and the stored item located within the separation interval remains as it is.

  The bag-shaped exterior portion 7 is welded to the circular opening 2f of the first housing portion 2 by the welded portion 2h along the entire circumference above the welded portion 2d of the second housing portion 3. The outer side of the second housing part 3 is entirely covered (of course, the welded part 2h for welding the exterior part 7 may be formed so as to overlap the welded part 2d). In this case, the exterior part 7 is made of a thin film (for example, a material similar to the material forming the second accommodation part 3), and covers the outside of the second accommodation part 3, thereby The buffer layer S2 can be formed in advance between the housing portion 3 and the housing portion 3. This buffer layer S2 has a function of protecting the second housing portion 3 from an impact that the second housing portion 3 may receive during transportation or the like, and is the same as air (injected outside air) in advance. Are preferred).

Next, the action (buffer action) of the container 1 having the above-described configuration will be described with reference to FIG.
FIG. 5 is a diagram schematically showing a state where the buffer layer S2 formed by the exterior portion 7 is filled with air.

  As shown in the drawing, air G is filled in the gap between the exterior portion 7 and the second storage portion 3 in a state in which the first storage portion 2 and the second storage portion 3 store the stored items. Thus, the layer of air G serves as a buffer layer S2 that protects the second housing portion 3 from external impact (absorbs impact). The pressure of the air constituting the buffer layer S <b> 2 is set so as to stabilize the position of the second housing portion 3 in the exterior portion 7. That is, the second accommodating portion 3 comes into contact with the outside through the buffer layer S2 in all directions. For this reason, when the container 1 is transported or transported for shipment or the like, the soft second container 3 is prevented from being damaged or broken by an impact or the like (the second container 3 is shocked). Can be effectively protected from).

Next, the contents extraction action (pressing extraction action) of the container 1 having the above-described configuration will be described with reference to FIGS.
FIG. 6 (a) shows that the buffer layer S2 is filled with air G in a state in which the storage object is stored in the first storage part 2 and in the second storage part 3 (storage object storage space S1). The state is shown (see FIG. 5). From this state, when outside air is injected into the buffer layer S2 through the injection port 7a, the second storage portion 3 starts to be pressed together with the air previously filled in the buffer layer S2, thereby storing from the spout 2a. Things begin to be poured out.

  If the outside air is continuously injected into the buffer layer S2 through the injection port 7a as it is, the bag-like second storage portion 3 gradually shrinks while vertical wrinkles are generated, and the bottom edge 3a becomes the first storage portion 2. It rises toward the circular opening 2f (region of the welded portion 2d) (see FIGS. 6B and 6C).

  When the outside air is further injected, the bottom edge 3a inside the second accommodating portion 3 passes through the circular opening 2f (the region of the welded portions 2d and 2h) of the first accommodating portion 2 as the contents flow out. Then, the second accommodating portion 3 is inverted and pushed into the internal space of the first accommodating portion 2 (see FIGS. 6D and 6E). When the outside air continues to be further injected, the inner surface of the second housing portion 3 comes into close contact with the inner surface of the first housing portion 2 (see FIG. 6 (f)), and the stored material is on the housing portion side of the spout 2a. It becomes concentrated in the opening area.

  As shown in FIG. 6 (f), when the bag-like second housing part 3 is inverted and pushed into the internal space of the cylindrical first housing part 2, the inner surface of the second housing part 3 Comes in close contact with the inner surface of the first housing portion 2. In this case, as described above, the first accommodating portion 2 has a cross section that changes from a circular shape to an elliptical shape toward the spout 2a side from the welded portion 2d (2h), and enters the second accommodating portion. Since it is made to correspond to the cross-sectional shape of the part 3, the second accommodating part 3 is easily adhered to the inner surface of the first accommodating part 2 without causing wrinkles or the like, and the contents are efficiently poured out. Is possible. Further, as shown in FIG. 3, the second accommodating portion 2 has a circular opening 2f having the same diameter over a predetermined length L, and the second accommodating portion 3 is welded within this range. Therefore, when the second accommodating portion 3 is reversed and enters in the welded portion region, wrinkles and the like are prevented from occurring in this portion, and the possibility that the contents remain is reduced.

  As described above, according to the present embodiment, the exterior portion 7 that covers the soft second housing portion 3 formed in a bag shape that is a non-self-solid body by the thin film is provided from the outside. Since the buffer layer S2 previously filled with air is formed between the second accommodating portion 3 and the second accommodating portion 3, the second accommodating portion 3 can be effectively protected from the impact, and the soft second It is possible to prevent the housing portion 3 from being damaged or broken. Further, by filling the buffer layer S2 with air, the position of the second accommodating portion 3 is stably held in the exterior portion 7, and the impact resistance can be further enhanced.

  Moreover, in this embodiment, since both the 2nd accommodating part 3 and the exterior part 7 are comprised with the thin film film, when discarding the container 1, the exterior part 7 and the 2nd accommodating part 3 are used. Similarly, by being pushed into the first housing part 2, it is possible to dispose of the first housing part 2 in a waste volume amount substantially equivalent to the volume of the first housing part 2, and the environment-friendly container 1 can be realized.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be variously modified as follows, for example.

  In the above-described embodiment, the exterior portion 7 is configured by a thin film, but may be configured by a synthetic resin molded product as in the first housing portion 2. In such a structure, the exterior part 7 itself becomes a buffer layer, and it becomes possible to protect the 2nd accommodating part 3 more reliably.

  Moreover, about the magnitude | size of the said cylindrical 1st accommodating part 2, the shape from the side to the spout 2, the structure of the spout 2a in the cylindrical accommodating part 2, etc. can be changed suitably. Further, in the above-described embodiment, the buffer layer S2 is preliminarily filled with air to provide a buffering action. However, the buffer layer S2 is not limited to air but may be a liquid such as water.

DESCRIPTION OF SYMBOLS 1 Container 2 1st accommodating part 2a Spout 2f Circular opening 3 2nd accommodating part 7 Exterior part 7a Inlet S2 Buffer layer

Claims (1)

Resin molded with a spout capable of pouring the contents in the central region on one end side, a circular opening on the other end side, and a cross section changing from a circular shape to an elliptical shape toward the one end side A cylindrical first accommodating portion;
It is welded along the circular opening of the first housing portion, and becomes a non-self-solid body by a thin film that enters into the first housing portion and adheres closely to the inner surface thereof when the matter is poured out from the spout. A second accommodating portion formed in a bag shape;
The second housing portion is fixed along the circular opening of the first housing portion and entirely covers the outside of the second housing portion, and the second housing portion is disposed between the second housing portion and the second housing portion. An exterior that forms a buffer layer that protects against impact;
Have
The exterior portion is formed with an inlet that allows the stored items to be pushed out from the spout by outside air ,
The exterior part is composed of a bag-like film, and the buffer layer formed between the second housing part is an air layer,
The container, wherein the second container is in contact with the outside of the container through the buffer layer and the exterior in all directions .

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