JP2005239191A - Standing thin-walled container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a standing thin-walled container which is entirely made of a thin-walled synthetic resin and capable of standing, has a simple structure allowing separate use of a stored article in the container, and is easy to manufacture inexpensively. <P>SOLUTION: The standing thin-walled container has a nozzle forming protrusion 4 at the top corner of the trunk 3 of the container. The protrusion 4 is of a cylindrical shape with a closed front end, and has a first circular depressed part 7 to be severed and a second circular depressed part 8 to be engaged. The front end part of the protrusion 4 severed at the first circular depressed part 7 is used as a cap, which can be fitted on a spout opened by the severing in such a way that the closed side of the cap is first to be fitted and the second circular depressed part 8 is fitted tightly on the edge of the spout. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a standing thin container.

  A so-called standing pouch has been proposed in which a film that forms the bottom and a pair of films that form the side walls are fused and sealed at the periphery to form a pouch-like container. (For example, refer to Patent Document 1). The standing pouch is provided with a notch above the sealed one side edge, extending from the vicinity of the notch, and provided with a plurality of half-cut grooves for cutting a corner above the one side edge. The upper end corner portion is removed by cutting, and the stored items are poured out.

Moreover, in order to enable the divided use of the stored items, a spout with a cap that has been fused and fixed has been proposed. (For example, refer to Patent Document 2) This standing pouch is provided with an inclined portion at one corner of the upper side and the side side of the pouch side wall, and a spout for pouring the contents on the inclined portion is thermally welded. The spout has a base welded to the pouch side wall, a pouring tube having a thread on the outer peripheral surface extending outward from the base, a seal member thermally welded to the top surface of the pouring tube, A cap that is screw-fitted to a thread on the outer peripheral surface of the extraction cylinder, and a contact ring that is provided on the inner surface of the cap and that abuts the top surface of the extraction cylinder in a liquid-tight manner.
JP 2001-233355 A JP 2002-104446 A

  As described above, the conventional standing pouch is generally simple in structure and mainly intended for refilling the main container. Therefore, a simple structure that can be manufactured at low cost is desired. Therefore, the above-described film is formed by fusing, and the object is achieved. Moreover, although the thing provided with a spout is a convenient thing which can be divided and used and further expands the range of use, there is a problem in that the structure becomes complicated and the manufacturing process increases, leading to an increase in cost.

  The present invention has been made in view of the above-described points, and proposes a standing thin-walled container that can be divided and used with a simpler structure, can be easily manufactured, and can be obtained at low cost.

  In order to solve the above problems, the standing thin-walled container of the present invention is formed integrally with a thin-walled synthetic resin so as to be able to stand up, and a filling port 2 that fills and seals a stored item is formed at the upper end edge of the body portion 3. And a nozzle forming projection 4 is provided at the upper corner of the body portion 3. The nozzle forming projection 4 has a cylindrical shape with a closed end and a first annular recess 7 for cutting. And a second annular recessed portion 8 for engagement provided outside the first annular recessed portion, and a tip portion cut by the first annular recessed portion 7 is formed into a spout 10 opened by cutting, The second annular recessed portion 8 is configured to be fitted from the closed portion side so as to be closely fitted to the spout edge portion.

  Various forms can be adopted as the form of the body part 3 as long as it can be integrally formed with the nozzle forming protrusion 4 and can stand up. However, like the body part of a general standing thin-walled container of this type. In addition, it is possible to preferably adopt a configuration in which a peripheral wall portion having a shape narrowed as the both sides go upward from the peripheral edge of the bottom wall portion whose central portion is recessed upward. However, the present invention is not limited to this, and for example, it may be provided with a cylindrical body portion having the same diameter at the top and bottom. The thickness of the trunk 3 is not particularly limited as long as it has a thin enough shape to have a shape retaining property in which no stored item is stored or the stored item is filled.

  The entire standing thin container of the present invention is formed by blow molding. As the blow molding, general direct blow molding can be preferably employed, but other conventionally used molding methods such as a cold parison method and an injection blow molding method can be employed and can be selected depending on the shape and the like. By adopting the blow molding means, the standing thin container can be erected from the beginning of molding, so that there is no need to widen the filling port at the time of filling, smooth filling is possible, and handling is extremely convenient.

  The nozzle forming protrusion 4 is configured to be cut at the time of opening to form the nozzle 11 and the cap 12, and the cap 12 can be fitted to the nozzle 11 for storing the remaining liquid. is there. The first annular recess 7 is for cutting as described above, and is separated from this portion to form the base end as a nozzle 11, and the separated distal end is used as a cap 12. The first annular recess 7 not only serves as a guide for cutting, but also contributes to providing good liquid-tightness of the spout 10 together with the second annular recess 8 when the separated cap 12 is fitted. That is, when the second annular recess 8 is fitted into the spout 10 with the separated cap 12, the cut half of the first annular recess 7 remains as a protruding piece 13 at the peripheral edge of the spout 10. Engage with the second annular recess 8 of the cap 12 to which the protruding piece 13 is fitted to give good liquid tightness.

  In the standing thin container of the present invention, the first annular recess 7 and the second annular recess 8 may have a V-shaped cross section, and the tip periphery of the nozzle forming projection 4 may be tapered. The shape of each of the first and second annular recesses 7 and 8 satisfies the requirements if the peripheral edge of the nozzle forming projection 4 is annularly recessed inward, but has a V-shaped cross section as described above. By forming it, the cutting position of the first annular recess 7 can be clearly recognized, and the cap 12 cut off after cutting due to the presence of the tapered portion at the tip is easy to fit into the spout 10 easily. Cap can be attached to.

  In use, the standing thin-walled container of the present invention can pour out stored items from a spout 10 that is opened by cutting the first annular recess 7 for cutting. In addition, when not using all of the stored items, the cut nozzle tip can be used as the cap 12, so that the stored items can be divided and used in a stable state after opening. It can be stored without quality degradation. Furthermore, the tip of the fitted cap 12 is fitted and fitted with the protruding piece 13 at the periphery of the spout into the second annular recessed portion 8 to provide sufficient liquid-tightness so that it cannot be easily removed. Moreover, since the whole is integrally formed of a thin synthetic resin, it is easy to manufacture and can be obtained at low cost.

  In addition, the tip edge formed in the taper portion 9 can be easily inserted into the spout 10 having the cap 12 cut and separated due to the presence of the taper portion 9, and if it is forcibly pushed in, a thin protrusion at the edge of the spout 10 is obtained. The piece 13 can be easily expanded and fitted easily. Further, when the annular recesses 7 and 8 are formed in a V-shaped cross section, the cutting position can be recognized more clearly, and better liquid tightness can be obtained when the cap 12 is fitted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing an example of a standing thin container 1 according to the present invention, and FIG. 2 is a rear view. The standing thin-walled container 1 is formed integrally with a thin synthetic resin so as to be able to stand up, and has a filling port 2 for filling and sealing a stored item at an upper end edge of the body portion 3, and an upper portion of the body portion. The nozzle forming projection 4 is provided at the corner.

  The body portion 3 is provided with a peripheral wall portion 3b having a shape in which both sides of the bottom wall portion 3a squeeze upward from a peripheral edge portion of the bottom wall portion 3a whose upper portion is recessed in a mountain shape. A recess 5 for projecting the forming protrusion 4 is formed. In addition, the filling port 2 is opened at the upper end portion behind the recess 5, and in the illustrated example, a sealed portion 6 is formed by sealing the stored material in a flat shape by an appropriate means such as fusion, adhesion, etc. after filling. 2 is hermetically sealed and the contents are hermetically stored.

  The nozzle forming protrusion 4 protrudes integrally and obliquely forward from the recess 5, communicates the base end opening with the inside of the body portion 3, and closes and protrudes the distal end portion. The nozzle forming projection 4 includes a first annular recess 7 and a second annular recess 8 provided outside the first annular recess. The first annular recess 7 is for cutting, and is configured such that the tip is cut and cut by using a tool such as a scissors as a cap, and the remaining base is used as a nozzle. . The first annular recess 7 has a V-shaped cross section provided in the middle in the longitudinal direction of the nozzle forming projection 4, and the second annular recess 8 has a V-shaped cross section similar to the first annular recess. It has a shape and is located outside the first annular recess 7 in parallel. Further, a taper portion 9 is provided on the peripheral edge of the tip of the nozzle forming projection 4.

  The standing thin container 1 configured as described above is filled with the storage liquid through the filling port 2 and then closed by heat-sealing the upper end edge of the body portion 3 at the periphery of the filling port 2. In use, the center of the first annular recess 7 of the nozzle forming projection 4 as shown in FIG. 4 (a) is cut using a tool such as a scissors, cutter, knife, etc., as shown in FIG. 4 (b). In this way, the base end portion that is opened and cut off from the spout 10 is used as a nozzle 11 and the tip end portion is used as a cap 12. At this time, an annular projecting piece 13 as a cutting remaining piece of the first annular recess 7 is formed at the peripheral edge of the spout 10 at the tip of the nozzle 11. Next, after a part of the stored liquid is poured out from the spout 10, the cap 12 is inserted into the spout 10 from the closed portion side, and the protruding piece 13 is fitted into the second annular recess 8 to be poured. The outlet 10 is liquid-tightly closed.

It is a side view of this invention standing thin container. (Example 1) It is a rear view of this invention standing thin container. (Example 1) It is a principal part perspective view of the nozzle formation protrusion part of this invention standing thin container. (Example 1) It is explanatory drawing explaining the effect | action of this invention standing thin container. (Example 1)

Explanation of symbols

2 ... filling port, 3 ... body, 4 ... nozzle forming projection, 7 ... first annular recess,
8 ... second annular recess, 9 ... taper, 10 ... spout, 11 ... nozzle, 12 ... cap,
13… Projection

Claims (2)

  The whole is formed integrally with a thin synthetic resin so as to be able to stand up, and has a filling port 2 for filling and sealing the contents to be sealed at the upper edge of the body portion 3, and a nozzle forming protrusion at the upper corner of the body portion 3. The nozzle forming projection 4 has a cylindrical shape with the tip closed, and a first annular recess 7 for cutting and an engagement provided outside the first annular recess. And a second annular recessed portion 8 having a joint, and a tip portion cut by the first annular recessed portion 7 is formed at a spout 10 opened by cutting, and the second annular recessed portion 8 is formed at the spout edge. A standing thin container characterized in that it can be fitted from the closed portion side so as to be tightly fitted.   The standing thin-walled container according to claim 1, wherein the first annular recess 7 and the second annular recess 8 have a V-shaped cross section, and the tip periphery of the nozzle forming projection 4 is formed in a tapered shape.

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