JP6168859B2 - Spout - Google Patents

Description

The present invention relates to a spout for use by welding to the periphery of the pouch container, more specifically, the periphery of the pouch container, while welding only one side of the previously spout, the unwelded side into the pouch The pouch container and the spout are then sealed and welded in a sealed state so that the spout can be attached to any part of the periphery of the pouch container without disturbing the contents filling operation. .

  In FIG. 11 showing an example of the prior art, a so-called one-piece type spout 52 that is welded to the periphery of the pouch 50 and is opened by tearing the closed portion 51 with its upper end closed by the closed portion 51 is opened from its mouth. Since the contents cannot be filled, the upper portion of the pouch 50 is cut obliquely, and the spout 52 is welded to the oblique cut portion 53 so that the opening portion 54 is filled with the contents on the upper portion of the pouch 50. Is secured from the opening portion 54 to the pouch 50 from the direction of arrow A, and then the opening portion 54 is welded and closed (see Patent Document 1).

  Alternatively, as shown in FIG. 12, a one-piece type spout 52A is welded to the upper center of the pouch 50, and the bottom 55 of the pouch 50 is not welded, and when the pouch 50 is filled with the contents, the spout 52A is After filling the contents from the bottom 55 of the pouch 50 in the arrow B direction downward, the bottom 55 is welded and closed.

Japanese Patent Laid-Open No. 10-129689

  Although the thing of FIG. 11 can be filled with the content from the opening part 54 in the upper part of the pouch 50, since the spout 52 is welded to the diagonal cut part 53 of the pouch 50, the spout 52 becomes a protruding part. This may adversely affect transportation and storage, and may reduce the effective filling amount of the pouch 50. In addition, there is an inconvenience that the spout cannot be welded to the upper center portion of the pouch.

Further, in FIG. 12, since the contents are filled from the bottom 55 of the pouch 50 to which the spout 52A is previously welded, and the bottom 55 is welded and closed, the spout can be welded to the center of the pouch. However, it is extremely difficult to close the bottom 55 so as to be a standing type when the pouch is desired to be self-supporting, and it cannot be applied practically.
In view of the problems of the prior art, it is conceivable to leave the opening portion without welding the entire upper portion of the pouch 50 and fill the pouch 50 with the contents, and then weld the pouch 50 to the opening portion. That is, although a one-piece type spout 52 is previously welded to the upper center of the pouch 50, a spout that can be filled with contents from the upper portion of the pouch 50 has been desired.

Therefore, the object of the present invention is to enable filling of the contents from the unwelded side in the state where only one side of the spout is welded to the peripheral edge of the pouch container first, and by welding the unwelded side after filling the contents, As a result, it is an object of the present invention to provide a spout that does not get in the way of filling the contents even if the spout is attached to any part of the periphery of the pouch container.
Moreover, the other object of this invention is to provide the pouch container with a spout which attached the said spout, and the package with a spout.
Furthermore, the other object of this invention is to provide the manufacturing method of the said package with a spout.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention,
A spout that is used by welding to the periphery of a pouch container for storing the contents therein,
A welding rib is formed below the spout, and the welding rib constitutes the pouch container and a first welding rib that is welded to one plastic film side constituting the pouch container. Consists of a second welding rib welded to the other plastic film side,
The spout is characterized in that the height (H1) of the top of the first welding rib is higher than the height (H2) of the top of the second welding rib (H1> H2). The

  Moreover, according to this invention, the said spout whose cross-sectional area of the longitudinal cross-sectional shape of said 1st welding rib and said 2nd welding rib is the same is provided.

  Further, according to the present invention, the spout is closed at its upper end by a closing portion, and the closing portion is a peeling portion connected to the upper end of the spout via a breakable weakening portion. The spout is provided with an opening knob on the part.

  Moreover, according to this invention, the pouch container with a spout provided with the said spout is provided.

  According to the present invention, the first welding rib of the spout is welded to the one plastic film side, and an opening is formed between the other plastic film and the second welding rib of the spout. A pouch container with a spout is provided.

  Moreover, according to this invention, the said pouch container with the said pouch whose said pouch container is a standing pouch is provided.

  Moreover, according to this invention, the pouch packaging body with a spout with which the content was filled in the said pouch container is provided.

Further, according to the present invention, a method for producing a pouch package with a spout that is closed after the spout is attached to a pouch container and filled with contents,
A temporary welding step of welding the first welding rib of the spout on the one plastic film side constituting the pouch container;
A filling step of filling the content from the opening of the pouch container formed between the other plastic film constituting the pouch container and the second welding rib of the spout;
A book for simultaneously welding the first welding rib on the one plastic film side and the second welding rib on the other plastic film side constituting the pouch container to the one plastic film and the other plastic film. A welding process,
In the welding of the plastic film and the welding rib, a method for producing a pouch package with a spout is provided, wherein the welding process is divided into two stages.

Since the spout of the present invention has a difference between the height (H1) of the top of the first welding rib at the lower part of the spout and the height (H2) of the top of the second welding rib, the first and second welding When welding the rib for plastic to the plastic film, there can be a time difference, the first welding rib is welded to one of the plastic films, and the second welding rib is from the other unwelded side of the plastic film After filling the pouch with the contents, the unwelded side is welded and the already welded side is also welded again.

  Moreover, since the cross-sectional area of the longitudinal cross-sectional shape of the 1st welding rib and the 2nd welding rib is the same, without producing unevenness in the adhesive strength with the pouch container finally obtained by heat welding Stable adhesion can be achieved.

  In addition, the opening knob at the upper end of the spout can be grasped with a finger, force can be applied in the peeling direction to crush the weakened portion, the peeled portion can be removed, and the closed portion can be opened.

  The spout is attached to the periphery of the pouch to form a pouch container with a spout, and can be used as a package with a spout in which the container is filled with the contents. Especially, the spout is a standing pouch having an opening near the upper center of the pouch. Can also be applied.

  Moreover, the said package with a spout is (1) The temporary welding process which welds the 1st welding rib of the said spout to the one said plastic film side which comprises the said pouch container, (2) The said pouch container is comprised. A filling step of filling the contents from the opening of the pouch container formed between the other plastic film and the second welding rib of the spout; and (3) one plastic film constituting the pouch container. The first welding rib on the side and the second welding rib on the other plastic film side are simultaneously welded to the one plastic film and the other plastic film, In the manufacturing method, the composition of the spout is defined in the present invention. It is specific to be done by at certain things.

According to the invention defined in claim 1, by forming the height (H1) of the top of the first welding rib and the height (H2) of the top of the second welding rib at (H1> H2), Although it is a one-piece type spout, it is possible to fill the contents with the spout welded to one side of the pouch, so the spout welding position can be freely determined, and the one-piece type spout can be It can also be attached to the upper periphery.

  According to the invention defined in claim 2, in addition to the above-described effect, the first and second welding ribs and the plastic film of the spout are divided even if the welding process is divided into two times and welded at a time difference of one side. Is more easily and reliably welded.

   Further, according to the invention defined in claim 3, in addition to the above effect, there is an effect that the sealing property of the pouch is maintained and the opening can be easily performed with one touch.

  The inventions defined in claims 4, 5, 6 and 7 provide a pouch container with a spout having the above-mentioned effects and a pouch package with a spout filled with the contents, which is not possible with conventional spouts. There is an effect that can provide a standing pouch that did not exist.

  In addition, claim 8 is to manufacture a standing pouch filled with contents that could not be achieved with a conventional spout by interposing a filling process between the temporary welding process and the main welding process. There is a unique effect that has become possible.

It is a side view of the state which welded the spout which shows embodiment of this invention to the pouch. It is a side half sectional view of the spout of the present invention similarly. It is a side half sectional view of the spout of the present invention similarly. It is an enlarged side view of the lower part of the spout of the present invention. It is sectional drawing of the process of welding the spout of this invention to a pouch. It is sectional drawing of the process of welding the spout of this invention similarly to a pouch. It is sectional drawing of the process of welding the spout of this invention similarly to a pouch. It is sectional drawing of the process of welding the spout of this invention similarly to a pouch. It is sectional drawing of the process of welding the spout of this invention similarly to a pouch. It is sectional drawing of the process of welding the spout of this invention similarly to a pouch. It is a side view which shows the attachment state of the spout shown by patent document 1, and a pouch. It is a side view which shows the attachment state of the spout and pouch of a prior art example.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 4 , the spout 1 welds the peripheral edges 2a and 3a of the two plastic films 2 and 3, and welds the spout welding side peripheral edges 2b and 3b of the pouch container 4 containing the contents therein. The upper end of the spout 1 is closed, and a plurality of welding ribs 6 extending in the lateral direction are formed on the outer peripheral surface of the spout 1. The first welding rib 7 that is welded to the side of one plastic film 2 constituting the pouch container 4, that is, the peripheral edge 2b, and the side of the other plastic film 3 that constitutes the pouch container 4, ie, the peripheral edge 3b. The first welding rib 8 and the first welding rib 7 and the second welding rib 8 have the same cross-sectional area in the longitudinal cross-sectional shape and project outward. the top of the use rib 7 Height (H1) is one that is higher than (H1> H2) formed height of the top portion of the second weld ribs 8 (H2). Therefore, it goes without saying that the width (W1) of the first welding rib 7 is narrower than the width (W2) of the second welding rib 8.

  The pouch container 4 is formed by welding the peripheral edges 2a and 3a excluding the upper edges of the two plastic films 2 and 3 into a bag shape so that the contents can be stored. The lower part of the spout 1 is welded to the peripheral edges 2b and 3b. And the pouch container 4 is formed in a so-called standing pouch form so that a lower portion of the pouch container 4 can take a standing pose in a state where contents are stored at least inside. That is, as will be described in detail later, when the contents are stored in the inside of the pouch container 4, it is not necessary to fill from the bottom of the pouch 4, so that the shape of the bottom of the pouch container 4 can be processed in any way. is there.

As shown in FIGS. 2 and 3, the spout 1 has a hollow pouring cylinder shape whose upper end is closed by a closing portion 5, and a lower portion thereof is a pouch welded portion. The spout 1 has a flat shape as can be seen from the vertical cross-sectional shapes of FIGS. 2 and 3, and has a substantially elliptical shape in cross-sectional shape.
The closing part 5 of the spout 1 is a peeling part 11 connected to the upper end of the spout tube of the spout 1 via a breakable weakening part 10, and an opening knob part 12 is provided in a part thereof, The opening knob 12 is provided with a hole 12a for a finger to enter. Therefore, the closing part 5 can be opened by inserting a finger into the hole 12 a of the opening knob part 12, crushing the weakening part 10 by applying a force in the peeling direction and removing the peeling part 11. As a result, the sealing property of the pouch container 4 is maintained, and the pouch container 4 can be easily opened with one touch.

  As shown in FIGS. 2 and 3, the outer peripheral surface of the pouch welded portion at the lower part of the spout 1 is formed with welding ribs 6 extending in the lateral direction on the side surfaces. 4 of them are lined up. The welding rib 6 includes a first welding rib 7 which is welded to the peripheral edge 2b on one plastic film 2 side on one side surface of the lower part of the spout 1, and a peripheral edge 3b on the other plastic film 3 side to the other side surface. The second welding rib 8 is welded to the second welding rib 8. As will be understood with reference to FIG. 4, which is an enlarged side view of the welded portion, the first welding rib 7 and the second welding rib 8 are each formed over about a half circumference of the dispensing cylinder, A boundary between the first welding rib 7 and the second welding rib 8 exists on both ends of the elliptical long axis of the extraction cylinder having an elliptical shape when viewed from above.

As described above, the first welding rib 7 and the second welding rib 8 in the welding rib 6 have the same cross-sectional area in the longitudinal cross-sectional shape, and the top of the first welding rib 7 . The height (H1) is higher than the height (H2) of the top of the second welding rib 8 (H1> H2).
A process of welding the spout of the present invention to a pouch will be described with reference to the drawings.
As a result, the first welding rib 7 having a high top height (H1) is used in the first welding (temporary welding) with the welding rib portion having a height of (H1-H2). 2 is welded only to the peripheral edge 2b (see FIG. 6). Then, the contents can be filled into the pouch 4 from the opening 20 (see FIG. 7) formed between the unwelded second welding rib 8 and the peripheral edge 3b of the plastic film 3 (see FIG. 8). ). Thereafter, the first welding rib 7 having the same height (H2) as the height (H2) of the second welding rib 8 is re-welded to the peripheral edge 2b of the plastic film 2 simultaneously with the second welding rib 8. However, since the ribs have the same height, the first welding rib 7 and the second welding rib 8 are uniformly heated, and are stable on the peripheral edges 2b and 3b of the plastic film 3. As a result, the opening 20 is closed.

  Therefore, a time difference is provided in the welding of the first and second welding ribs 7 and 8 of the spout 1 and the plastic films 2 and 3, that is, the welding of the peripheral edges 2b and 3b of the opened portion of the pouch 4. Even if one side is welded again, it becomes possible to weld more easily and reliably. In addition, even if the first welding rib 7 of the spout 1 is welded to the peripheral edge 2b of the pouch 4, the peripheral edge 3b of the pouch 4 and the second welding rib 8 of the spout 1 are open because they are not welded. Since the contents can be filled into the pouch 4 from the opening 20, there is no positional restriction when the spout 1 is welded to the pouch 4. For this reason, the position where the spout 1 is welded to the pouch 4 can be a position that does not interfere with transportation or storage (for example, the central portion), and can be a position where the effective filling amount of the pouch is not reduced. .

Next, a method for manufacturing a package when the spout 1 having the above-described configuration is employed in the pouch 4 will be described.
First, for example, three sides of the peripheral edges 2 a and 3 a of two rectangular plastic films 2 and 3 are welded to form a bag-like pouch 4. Thereafter, the lower portion of the spout 1 is inserted between the unwelded spout welding side peripheral edges 2b and 3b of the bag-like pouch 4 (see FIG. 5). And only the 1st welding rib 7 is heat-welded among the several welding ribs 6 of the spout 1 to the peripheral edge 2b of the pouch 4 with the heat seal bars 21 and 22 of a welding machine (refer FIG. 6). At the time of the welding, the heat seal bar 21 corresponding to the first welding rib 7 is heated and the heat seal bar 22 corresponding to the second welding rib 8 is pressed and sandwiched with the spout in a non-heated state. Only the side is made into a non-welded state, and the welding rib portion corresponding to the height of the top of (H1-H2) in the first welding rib 7 is used as a welding material, and the spout 1 is placed on the film 2 side of the pouch 4. Is temporarily attached (temporary welding state).

  In this state, since the second welding rib 8 and the peripheral edge 3b of the bag-like pouch 4 are not welded, the opening 20 is formed (see FIG. 7), and the contents are pouched from the opening 20. 4 can be filled (see FIG. 8), and after filling the contents, the first welding rib 7 and the second welding rib are obtained by sandwiching and pressing both the heat seal bars 21 and 22 in a heated state. 8 and the peripheral edges 2b and 3b of the bag-like pouch 4 are completely welded (main welding state). If the opening 20 is closed in this way (see FIG. 9), the commercialization of the pouch 4 fitted with the spout 1 of the present invention containing the contents is completed (see FIG. 10), and the sealing performance of the pouch 4 is improved. It can be distributed in the market as a highly held product that is easy to transport and store. A consumer who has obtained this product inserts his / her finger into the hole 12a of the opening knob 12 of the spout 1, applies force in the peeling direction, crushes the weakened portion 10, and removes the peeling portion 11. The closing part 6 can be opened and the contents can be used. In this way, the height of the first welding rib 7 is higher than the height of the second welding rib 8 in advance, and the cross-sectional areas of both are the same, so that the temporary welding on one side and the main welding on both sides are called. Stable welding is possible even after two welding steps.

  While the first embodiment of the present invention has been described above, it should be understood that the specific configuration is not limited to this, and that modifications can be made as appropriate without departing from the scope of the present invention.

  The spout of the present invention is a one-piece type spout, which does not interfere with the spout during transportation and storage, does not reduce the effective filling amount of the pouch, and intervenes the content filling process between the temporary welding process and the main welding process. Therefore, when it can be applied to a standing pouch and it is desired to fill the contents smoothly, its availability becomes extremely high.

1, 52, 52A Spout 2, 3 Plastic film 2a, 3a Perimeter 2b, 3b Spout welding side peripheral 4, 50 Pouch 5, 51 Closure part 6 Welding rib 7 First welding rib 8 Second welding rib 10 Weakening part DESCRIPTION OF SYMBOLS 11 Peeling part 12 Opening knob part 12a Hole 20 Opening part 21, 22 Heat seal bar 53 Diagonal cut part 54 Opening part 55 Bottom part A, B Arrows H1, H2 Height

Claims (8)

A spout that is used by welding to the periphery of a pouch container for storing the contents therein,
A welding rib is formed below the spout, and the welding rib constitutes the pouch container and a first welding rib that is welded to one plastic film side constituting the pouch container. It consists of a second welding rib that is welded to the other plastic film side,
The spout is characterized in that the height (H1) of the top of the first welding rib is higher than the height (H2) of the top of the second welding rib (H1> H2).   The spout according to claim 1, wherein the first welding rib and the second welding rib have the same longitudinal cross-sectional area. The spout is closed at its upper end by a closing part,
The spout according to claim 1 or 2, wherein the closing portion is a peeling portion connected to an upper end of the spout via a breakable weakening portion, and an opening knob portion is provided at a part thereof.   The pouch container with a spout provided with the spout of any one of Claim 1 thru | or 3.   The first welding rib of the spout is welded to the one plastic film side, and an opening is formed between the other plastic film and the second welding rib of the spout. Pouch container with spout.   The pouch container with a spout according to claim 4 or 5, wherein the pouch container is a standing pouch.   A pouch package with a spout, wherein the pouch container according to any one of claims 4 to 6 is filled with contents. A method for manufacturing a pouch package with a spout that is closed after the spout according to any one of claims 1 to 3 is attached to a pouch container and filled with contents.
A temporary welding step of welding the first welding rib of the spout on the one plastic film side constituting the pouch container;
A filling step of filling the content from the opening of the pouch container formed between the other plastic film constituting the pouch container and the second welding rib of the spout;
A book for simultaneously welding the first welding rib on the one plastic film side and the second welding rib on the other plastic film side constituting the pouch container to the one plastic film and the other plastic film. A welding process,
A method for manufacturing a pouch package with a spout, characterized in that the welding process is divided into two stages in the welding of the plastic film and the welding rib.