JP2005088929A - Blow-molded thin standing container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blow-molded standing container which can efficiently replace the air in the container for stably pouring out contents and can be downsized by folding. <P>SOLUTION: The blow-molded thin container includes a thin barrel wall (1), a thin bottom wall (2) integrally connected with the lower end of the barrel wall (1) for causing the barrel wall to stand whether or not the contents are present, a thin spout (3) integrally protruding from the upper end corner of the barrel wall (1) and having its tip opened to form a spouting passage (3a) of the contents, and a filling part (4) provided on the upper part of the barrel wall (1) adjacent to the spout (3) for supplying the contents into a filled space of the barrel wall (1). An air replacing flow pipe (7) extending along the spout (3) toward the filled space with the contents is formed on the upper part of the spout (3). A closure (7a) for closing the tip of the pipe (7) and also unsealing the tip of the spout (3) as soon as opening it is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a blow molded standing thin-walled container composed of a synthetic resin film or a metal film, which enables the container to be compacted by folding, and the contents in the container are poured out when the contents are poured out. It is intended to achieve stable dispensing by efficiently replacing air.

Deferred type containers that contain shampoo, rinse, liquid soap, cosmetics, etc. are generally equipped with a dispenser that allows the appropriate amount of content to be dispensed, and such containers are replenished with the contents. In order to reduce the constituent materials as much as possible, a thin-walled blow bottle made of a synthetic resin film or a metal film and a synthetic resin (for example, stretched polypropylene resin) is used as a refill container (for example, a patent). Reference 1 and Patent Reference 2).
JP-A-11-11496 JP 2002-225842 A

  Among conventional refill containers, pouches are widely used as refill containers because the volume of the containers can be reduced and the manufacturing cost can be reduced and the materials used can be reduced. Since there is no tension in the container itself, it is difficult to efficiently replace the air in the container in the refilling work of the contents because the film overlaps and the outlet is blocked, and the contents are stably discharged. It had a drawback that could not be made.

  In this respect, the blow molded bottle has an advantage suitable for a refill container because the container itself is stretched and air replacement can be performed relatively efficiently even though it is thinned. Compared to a container such as a pouch because it has a bottle shape, it is unsatisfactory in appealing to consumers for sales promotion, and in a container with a cap or lid, a capping part or The thickness of the shoulder is increased to increase the rigidity of the shoulder, and it is difficult to reduce the amount of resin used, and there remains a problem that it is not possible to sufficiently respond to the demand for effective use of resources.

  As for the pouch, although an attempt has been made to secure an air replacement path in order to efficiently refill the contents in the same manner as the bottle by assembling a hard pouring tube in the pouring part, such a pouch is a constituent member. There is a disadvantage that an increase in manufacturing costs and an increase in manufacturing cost are indispensable, and there is a concern that the advantages inherent to the pouch may be impaired.

  An object of the present invention is to provide a novel blow molded standing thin-walled container that can stably dispense contents by efficiently replacing air in the container while taking advantage of the merits of the pouch and the blow-molded bottle, respectively. Proposed.

The present invention provides a thin-walled body wall part that forms a filling space for contents and enables volume reduction of the filling space, and is integrally connected to the lower end of the body wall part to connect the body wall part to the presence or absence of the contents. A thin-walled bottom wall portion that stands up without being concerned, a thin-walled pouring portion that protrudes integrally from the upper-end corner of the body wall portion and opens the tip to form a content pouring path, and the body A blow molded standing thin-walled container provided with a filling portion that is provided adjacent to the pouring portion at the upper portion of the wall portion and supplies the contents to the filling space of the body wall portion,
An air replacement flow path pipe extending along the extraction part toward the filling space of the contents is disposed on the upper part of the extraction part,
The air replacement channel pipe is a blow molded standing thin container characterized by having a closing plug for closing the tip of the air replacement channel tube and opening the tip of the dispensing portion and simultaneously opening the air replacement channel tube.

  Even if the thickness is reduced, the tension of the container itself is not impaired, and it is folded compactly like a pouch, and it has an air replacement channel pipe separately from the pouring part for pouring the contents. The air in the container is efficiently replaced. For this reason, when the contents are poured out or even when the contents in the container are reduced, the container itself is not easily deformed, so it is easy to hold and pour.

  Since the air replacement flow path pipe has a closing plug that is opened at the same time as opening the tip of the extraction portion, the contents do not enter the air replacement flow path pipe when the product is distributed.

  Hereinafter, the present invention will be described more specifically with reference to the drawings.

  1 to 5 show an embodiment of a blow molded standing thin container according to the present invention. FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a rear view, FIG. 4 is a plan view, and FIG. Is a bottom view.

  In the figure, 1 is a thin body wall portion that forms a filling space for the contents, and the opposing side walls are in close contact with each other to enable volume reduction of the filling space, and 2 is integrated with the lower end of the body wall portion. It is a thin-walled bottom wall portion that connects to the body wall and stands up with or without the contents.

  Further, 3 is a thin-walled pouring portion that protrudes integrally from the upper end corner of the body wall portion 1 and opens its tip to form a content pouring path, and 4 is the pouring portion at the upper portion of the body wall portion 1. A filling portion that is provided adjacent to the portion 3 and supplies the contents to the filling space of the body wall portion 1, and the filling portion 4 can be sealed at its open end by heat sealing or the like after filling the contents. It can be done.

  In addition, 5 is a valley formed between the pouring part 3 and the filling part 4, and 6 is an outer wall of the pouring part 3 and is engaged with the mouth of the container to be refilled, using it as a fulcrum, and the container itself 7 is an air displacement channel pipe extending along the pouring portion 3 toward the filling space of the contents at the upper portion of the pouring portion 3. The air replacement flow channel pipe 7 has a closing plug 7a that closes the tip and opens the tip of the extraction portion and at the same time opens the air replacement flow channel tube 7.

  FIG. 6 shows an enlarged view of the air replacement flow path pipe 7, and FIG.

  The air replacement flow path pipe 7 can be formed integrally with the pouring part 3 through the fin f at the time of blow molding, and the path for pouring the contents and the blocking plug 7a are cut off. Thus, since there are separate passages for introducing air into the container and replacing the air in the container, the contents can be efficiently dispensed.

  Further, since the closing plug 7a is formed at the distal end portion of the air replacement flow channel tube 7 as described above, air replacement is performed until the closing plug 7a is opened simultaneously with the opening of the dispensing portion 3. The state in which the tip of the channel pipe 7 is closed is maintained, so that when the container is circulated, the contents of the air replacement channel pipe 7 communicated with the inside of the container from the opposite side of the closing plug 7a. It can be set as the structure which is hard to penetrate | invade in the substitution flow path pipe 7. FIG. As a result, the contents are not present in the air replacement flow path pipe 7 at the time of opening, and smooth replacement and efficient discharge of air from the beginning of the discharge can be performed.

  In addition, as for the relationship between the air replacement flow path pipe 7, the fin f, and the upper wall portion of the nozzle 3, the larger the maximum width portion of the fin f shown as L in FIG.

  The resin used for the container can be arbitrarily used as long as it is a resin that can be blow-molded, such as an olefin-based thermoplastic resin such as polyethylene or polypropylene, or a polyester resin typified by polyethylene terephthalate, and the layer structure thereof is also the resin. It is possible to adopt a single layer or laminated structure as appropriate, and it is also possible to interpose a barrier layer such as EVOH or nylon, and this is not limited. Further, by forming a concave or convex line 8 as shown in FIG. 5 for the bottom wall 2, the container can be easily folded, and the container can be made compact before filling the contents or after being used. It becomes possible.

  As with the pouch, it can be made compact by folding the container, and the contents can be prevented from entering the air replacement flow path until it is opened, ensuring a reliable air replacement path from the beginning of dispensing. It is suitable for a container capable of stably discharging the contents while efficiently replacing air through a dedicated path.

It is the figure which showed embodiment of this invention about the front. It is the figure which showed the side surface of the container shown in FIG. It is the figure which showed the back surface of the container shown in FIG. It is the figure which showed the plane of the container shown in FIG. It is the figure which showed the bottom face of the container shown in FIG. It is the figure which expanded and showed the air substitution flow path pipe. It is the figure which showed the AA cross section of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body wall part 2 Bottom wall part 3 Outgoing part 3a Outgoing path 3b Air flow path 3c Protruding end part 4 Filling part 5 Valley 6 Recessed part 7 Air replacement flow path pipe 7a Blocking plug 8 Line f Fin L The maximum width part of a fin

Claims (1)

A thin body wall that partitions the filling space for the contents and enables the volume of the filling space to be reduced, and is integrally connected to the lower end of the body wall, regardless of the presence or absence of the contents A thin-walled bottom wall portion to stand up, a thin-walled pouring portion that projects integrally from the upper-end corner of the fuselage wall portion and opens its tip to form a pouring path for contents, and an upper portion of the fuselage wall portion A blow molded standing thin-walled container provided with a filling portion that is provided adjacent to the pouring portion and supplies the contents to the filling space of the body wall portion,
An air replacement flow path pipe extending along the extraction part toward the filling space of the contents is disposed on the upper part of the extraction part,
A blow molded standing thin-walled container characterized in that the air replacement channel pipe has a closing plug that closes the tip of the air replacement channel tube and opens the tip of the pouring part and simultaneously opens the air replacement channel tube.

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