JP2010260560A - Spout with occlusion prevention function - Google Patents

Abstract

[PROBLEMS] To provide a large-sized or small-sized bag-shaped package made of a flexible film for wrapping liquid contents, or a spout pouring opening portion regardless of the amount of liquid contents filled in the bag-shaped package. It is intended to prevent clogging and facilitate the pouring of the contents in the bag-shaped package from the spout.
A spout B attached to an outer peripheral end portion of a holed portion formed in a bag-like package A made of a flexible film packaging material is provided with a lower flange portion 2 on an outer periphery of a lower opening portion 4 of a body 1, and the lower portion There is provided a perforated flow path 6 that communicates from the inner peripheral surface of the lower opening 4 provided in the structure of the flange portion 2 to the outer peripheral end surface of the lower flange portion 2, and the upper surface of the lower flange portion 2 has a bag-like package A It is heat-sealed and attached to the inner surface of the outer peripheral end portion of the hole-forming portion A2 provided in the hole.
[Selection] Figure 1

Description

  The present invention relates to a spout with an occlusion prevention function which is attached to a bag-like package made of a flexible film for packaging liquid contents.

  In general, a bag-like package for packaging liquid contents is filled and sealed in a bag-like package A (such as a pouch) made of a flexible film packaging material, as shown in the side sectional view of FIG. A cylindrical spout B for sealing and pouring objects is heat-sealed on the surface of a hole A2 in which the lower surface of the lower flange 2 is formed in a bag-like package A of flexible film packaging material. Glued and attached.

  In such a bag-like package A, the lid C (or a plate-like closure lid with a pull-off type pull ring) that seals and seals the upper pouring opening 3 is removed from the spout B, and then opened. When the liquid content D in the pouch A is discharged from the upper pour opening 3 of the pouch A, the inside of the pouch A in the sealed space is depressurized, and the lower pour opening 4 of the spout and the film packaging material A1 facing the pouch A The inner surface is in close contact with the load due to the amount of reduced pressure and the weight of the contents, and the inner surface of the film packaging material A1 closes the lower pouring opening 4 of the spout B. As a result, the spout B enters the bag-shaped package A. It becomes difficult to pour out the remaining contents D.

  For example, Patent Documents 1 and 2 include measures for preventing the blocking phenomenon caused by the close contact of the film packaging material A1 of the bag-shaped package A with the spout B. For example, as shown in FIG. 4, the flange portion 2 of the spout B that contacts the inner surface of the film packaging material A1 facing the bag-like package A in the flange portion 2 of the spout B for attaching the spout B main body to the bag-like package A surface. As shown in the bottom views of FIG. 4 and FIG. 5, a plurality of grooves 5 communicating with the inside of the lower extraction opening 4 are provided radially on the lower surface of.

  As a result, as shown in FIG. 6, due to the reduced pressure in the pouch A when the contents D are poured out, the lower pouring opening 4 and the lower flange portion 2 lower surface of the spout B and the inner surface of the film packaging material A1 Even if they are in close contact with each other, the groove portion 5 is not closed, and a flow path is formed by the groove portion 5 on the lower surface of the flange portion 2 and the film wrapping material A1 in close contact with the lower surface of the flange portion 2. The object D flows through the groove 5 into the lower extraction opening 4 and is discharged from the spout B.

  However, when the filling amount of the liquid content in the bag-shaped package A is large, a load due to the weight of the content applied to the package at the time of decompression in the pouch A due to the discharge of the content D from the spout B becomes large. In particular, in the case of a large bag-shaped package, since the weight of the packed and packed contents is large, the load due to the reduced pressure amount and the weight of the contents in the package A due to the extraction of the contents D from the spout B is also great. Become.

  Therefore, when the liquid content D in the pouch A is discharged from the spout B, the lower portion of the lower pouring opening 4 and the lower surface of the flange portion 2 of the spout B and the inner surface of the film wrapping material A1 facing it are reduced in pressure. And the flow path formed by the groove portion 5 on the lower surface of the flange portion 2 and the film wrapping material A1 in close contact with the lower surface of the flange portion 2 is completely or partially blocked. As a result, it may be difficult to pour the contents D from the spout B.

JP-A-2005-231686 Japanese National Patent Publication No. 2-500831

  The object of the present invention is to spout spouts regardless of the amount of large or small bag-like packages made of flexible film for packaging liquid contents, or the amount of liquid contents in the bag-like package. An object of the present invention is to prevent clogging of the opening and facilitate the pouring of the contents in the bag-shaped package from the spout.

  The invention according to claim 1 of the present invention is the spout B that is attached to the outer peripheral end of the perforated portion provided in the bag-like package A made of the flexible film packaging material, on the outer periphery of the lower opening 4 of the cylindrical body 1. A lower flange portion 2, and a perforated flow path 6 communicating from the inner peripheral surface of the lower opening 4 formed in the structure of the lower flange portion 2 to the outer peripheral end surface of the lower flange portion 2. 2 is a spout with an anti-blocking function, characterized in that the upper surface of 2 is heat-sealed and attached to the inner surface of the outer peripheral end of the hole A2 provided in the bag-like package A.

  The invention according to claim 2 of the present invention is the spout with a blocking prevention function according to claim 1, wherein the perforated flow path 6 formed in the lower flange portion 2 is formed on the inner peripheral surface of the lower opening portion 4. 1 to 4 or a plurality of radiating radial spouts toward the outer peripheral end surface of the lower flange portion 2.

  According to the spout with a blocking prevention function of the present invention, the perforated flow path 6 communicating from the inner peripheral surface of the lower opening 4 toward the outer peripheral end surface of the lower flange portion 2 is formed inside the spout body lower flange portion 2. A hole is formed in the structure of the lower flange portion 2 formed of the same material as the spout body. Therefore, when the contents D filled in the bag-like package A to which the spout of the present invention is attached are discharged, a decompression occurs in the pouch A, and the lower outlet opening 4 and the lower part of the spout B Even if the lower surface of the flange portion 2 and the inner surface of the film wrapping material A1 facing them are in contact with each other, the perforated flow path 6 is not blocked because there is no change in the inner diameter of the flow path. The flow path is held, and the content D in the bag-shaped package A flows from the outer peripheral end surface of the lower flange portion 2 through the perforated flow path 6 into the lower extraction opening 4 and is excellent from the spout B. It has the effect of being discharged due to fluidity.

  Thus, according to the spout with the blocking prevention function of the present invention, the filling amount of the liquid content in the bag-shaped package A is large especially in the case of a large-sized bag-shaped package, and the content D is poured out from the spout B. Even if the load due to the reduced pressure amount and the weight of the contents in the package A also becomes large, the perforated flow path 6 is not held and blocked, and as a result, the spout B regardless of the size of the bag-like package. The content D can be poured out smoothly from

The side sectional view of the spout with a blockade prevention function of the present invention, and the bag-like package which attached it. The bottom view of the spout with a blocking prevention function of the present invention. The sectional side view explaining the state which poured out the contents from the bag-like package which attached the spout with a blocking prevention function of the present invention. The side sectional view of the conventional spout with a blockade prevention function, and the bag-like package which attached it. The bottom view of the conventional spout with an obstruction | occlusion prevention function. Side sectional drawing explaining the state which poured out the content from the bag-like package which attached the conventional spout with a blockade prevention function.

  The spout with the blocking prevention function of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side sectional view of the spout B of the present invention and a bag-like package A to which the spout B is attached. It is molded by a thermoplastic synthetic resin, and includes a dispensing cylinder 1, an upper opening 3 and a lower opening 4 provided in the dispensing cylinder 1, and the outer periphery of the lower opening 4 is flat. The lower flange part 2 of a shape is provided.

  In the structure of the lower flange portion 2, a perforated flow path 6 that communicates from the outer peripheral end surface of the lower flange portion 2 to the inner peripheral surface of the lower opening 4 is formed by molding or the like, as shown in the figure. Further, the spout B with the blocking function of the present invention has a pouring hole A2 provided at a predetermined position of the packaging material A1 of the bag-like package A made of the flexible film packaging material, with the upper surface of the lower flange portion 2 being provided. It is attached to the inner surface side of the packaging material at the outer peripheral edge by heat sealing. In addition, a lid C such as a screwing method, an uneven fitting method, or a half-cut / pull-off method with a pull ring is applied to the upper opening 3 side of the spout B, and the contents are contained in the bag-like package A. It is to be sealed and packaged. In addition, although the flow path internal diameter (maximum aperture) of the perforated flow path 6 is set at least smaller than the thickness of the flat-shaped lower flange part 2, it is not specifically limited in this invention.

  FIG. 2 is a bottom view of the spout B of the present invention as viewed from the lower flange portion 2 side. The perforated flow path 6 formed in the structure of the lower flange portion 2 is formed on the inner periphery of the lower opening 4. From one surface to the outer peripheral end surface of the lower flange portion 2, one to four or a plurality of radials are provided.

  FIG. 3 is a side sectional view for explaining a state in which the liquid content D is poured out from the spout B of the bag-shaped package A to which the spout B of the present invention is attached. When the content D is poured out, the inside of the bag-shaped package A (pouch A) is depressurized by the discharge of the air by pouring the content D, and the lower pouring opening 4 and the lower portion of the spout B Even if the lower surface of the flange portion 2 and the inner surface of the film wrapping material A1 are in contact with each other, the perforated flow path 6 formed in the structure of the lower flange portion 2 is not blocked because there is no change in the inner diameter of the flow path. .

  Therefore, the perforated flow path 6 holds a flow path through which the contents flow, and the contents D in the bag-shaped package A (such as contents remaining in the bag-shaped package A) are transferred to the lower flange portion 2. From the outer peripheral end surface 7, the fluid flows into the lower extraction opening 4 through the perforated flow path 6 and is discharged from the spout B with good fluidity.

A ... Bag-shaped package A1 ... Packaging material A2 ... Peripheral end B of pouring hole part ... Spout C ... Lid D ... Contents 1 ... Pouring cylinder 2 ... Lower flange part 3 ... Upper opening part 4 ... lower opening 5 ... groove 6 ... perforated flow path 7 ... outer peripheral end face of lower flange

Claims (2)

  In the spout B attached to the outer peripheral end of the perforated portion formed in the bag-like package A made of flexible film packaging material, the lower flange portion 2 is provided on the outer periphery of the lower opening 4 of the cylindrical body 1, and the lower flange portion 2 is provided with a perforated flow path 6 communicating from the inner peripheral surface of the lower opening 4 formed in the structure 2 to the outer peripheral end surface of the lower flange portion 2, and the upper surface of the lower flange portion 2 is provided in the bag-shaped package A A spout with an anti-blocking function, wherein the spout is attached to the inner surface of the outer peripheral end of the perforated portion A2 by heat sealing.   The perforated flow path 6 formed in the lower flange portion 2 includes one to four or a plurality of radial holes from the inner peripheral surface of the lower opening 4 toward the outer peripheral end surface of the lower flange portion 2. The spout with an occlusion prevention function according to claim 1.

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