JP2005067680A - Blow molding standing thin-walled container suitable for substitution of pouch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a blow molding thin-walled container with which a pouch can be substituted and in which the length and the angle of the bung hole part can be relatively freely changed. <P>SOLUTION: A blow molding standing thin-walled container is equipped with a thin-walled barrel wall part (1) which divides and forms a filling space for a content and can reduce the volume of the filling space by bringing facing side walls into mutually tight contact with each other, a thin-walled bottom wall part (2) integrally connected to the lower end of the barrel wall part (1) and standing the barrel wall part (1) regardless of existence of the content, a bung hole part (3) projecting integrally from either the barrel wall part (1) or the bottom wall part (2) and opening the apex to form a discharging path for the content, and a filling part (4) for feeding the content into the filling space of the barrel wall part (1) in its upper part. The bung hole part (3) is composed of a nozzle (3a) inserted into the opening of the container to be repacked, and a bellows (3b) mutually connecting this nozzle (3a) with the barrel wall part (1) to enable the stretch/contract of the nozzle (3a). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a blow molded standing thin-walled container suitable for replacement of a pouch composed of a synthetic resin film or a metal film, and the pouring part of the refill container is connected to the mouth of the container to be refilled. It is intended to be reliably inserted and the contents are replenished stably.

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

  By the way, among the conventional refill containers, the pouch is widely used as a refill container because the volume of the container can be reduced and the manufacturing cost can be reduced and the materials used can be reduced. Since the container itself has no tension, it was impossible to insert the spout into the mouth of the container to be refilled, and there was a disadvantage that the contents spilled out during refilling.

  In this regard, blow molded bottles have an advantage that is suitable for refilling containers because the container itself has a certain amount of tension even though it is thinned, and the pouring part can be inserted into the mouth of the container to be refilled. The part protrudes in a certain direction with respect to the body of the container, and the tilting posture of the container is always limited.

  In addition, as for the pouch, although an attempt has been made to assemble a hard pouring pipe in the pouring part and refill the contents through the pouring pipe, such a pouch is an increase in the number of components and the manufacturing process. Since it is indispensable to add, there is a disadvantage that causes an increase in manufacturing cost, and the advantage inherent to the pouch may be impaired.

  An object of the present invention is to propose a new blow-molded standing thin-walled container that can replace a pouch and that increases the degree of freedom of the container pouring posture.

The present invention provides a thin fuselage wall part that forms a filling space for the contents and allows the opposing side walls to adhere to each other to reduce the filling space, and a lower end of the fuselage wall part. Connected to the bottom wall of the thin wall to stand the body wall with or without the contents, and the body wall or the bottom wall part is integrally projected to open the tip to form the contents pouring path A blow-molded standing thin-walled container comprising: a thin-walled pouring portion, and a filling portion for supplying contents to the filling space of the body wall portion at the upper portion of the body wall portion;
The blow molding standing thin-walled container characterized in that the pouring part is composed of a nozzle inserted into the mouth of the container to be refilled and a bellows that allows the nozzle and the body wall part to be connected to each other to enable expansion and contraction of the nozzle. It is.

  Since the nozzle can be expanded and contracted by the bellows by configuring the nozzle to be inserted into the mouth of the container to be refilled and the bellows connecting the nozzle and the body wall, the pouring posture of the refill container The degree of freedom increases, making refilling work easier.

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

  1 (a) and 1 (b) show an embodiment of a container according to the present invention. In FIG. 1, reference numeral 1 denotes a filling space for contents, and the opposing side walls are brought into close contact with each other to fill the container. A thin-walled body wall portion 2 for reducing the space is a thin-walled bottom wall portion that is integrally connected to the lower end of the body wall portion and stands up regardless of the presence or absence of contents.

  Reference numeral 3 denotes a thin-walled pouring portion which integrally protrudes from the upper end corner of the body wall portion 1 and opens its tip by cutting with a scissors to form a content pouring path. The pouring part 3 is composed of a nozzle 3a to be inserted into the mouth of a container to be refilled and a bellows 3b that allows the nozzle 3a and the body wall part 1 to be connected to each other to allow the nozzle 3a to expand and contract. A filling portion 4 is provided on the upper portion of the body wall portion 1 adjacent to the pouring portion 3 and supplies the contents to the filling space of the body wall portion 1. The filling portion 4 is filled with the contents. The open end can be sealed later by heat fusion or the like.

  In order to refill the contents, first, the tip of the nozzle 3a is cut along the A line with a scissors or the like. Then, the tip of the pouring part 3 is inserted into the mouth of the container to be refilled, and the container itself is tilted to replenish the contents.

  Since the length and angle of the nozzle 3a can be changed by the bellows 3b, the degree of freedom of the tilting posture of the container is remarkably increased, and the replenishment work of the contents can be simplified.

  The container according to the present invention is manufactured by blow molding a synthetic resin such as polyethylene / polypropylene or polyethylene terephthalate, and the wall thickness is about 0.05 to 0.5 mm in order to enable compaction by folding. It is preferable that

  FIG. 3 shows another embodiment of the container according to the present invention. In FIG. 1, the pouring part 3 is shown as an example in which the pouring part 3 protrudes integrally from the upper end corner of the body wall part 1, but the pouring part 3 protrudes from the bottom wall part 2 when pouring and the trunk when standing. It may be a pop-up type that can be depressed toward the inside of the wall portion 1, and the formation position of the extraction portion 3 can be variously changed according to the application.

  The container has a structure composed of a single resin, a laminate of two or more resins, and is composed of two or more resins including a barrier layer such as an ethylene vinyl alcohol copolymer or nylon. A multilayer structure is applicable and is not limited in this respect. Moreover, although not shown in figure, it is possible to form a concave or convex line about the bottom wall part 2, and this makes it easy to fold the container.

  The volume can be reduced by folding the container in the same way as a pouch, and since the extraction part can be freely expanded and contracted when the contents are extracted, it can be easily refilled and used in a wide range of applications.

It is the figure which showed embodiment of this invention, (a) is a front view, (b) is a side view. It is the figure which showed other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body wall part 2 Bottom wall part 3 Extraction part 3a Nozzle 3b Bellows 4 Filling part

Claims (1)

A thin wall of the body wall that partitions the filling space for the contents and allows the opposing side walls to adhere to each other to reduce the volume of the filling space, and is integrally connected to the lower end of the body wall portion. A thin bottom wall portion that stands up with or without the contents, and a thin wall casting that protrudes integrally from the body wall portion or the bottom wall portion and opens the tip to form a content pouring path A blow molded standing thin-walled container comprising an exit part and a filling part for supplying contents to the filling space of the body wall part at the upper part of the body wall part,
The blow molding standing thin-walled container characterized in that the pouring part is composed of a nozzle inserted into the mouth of the container to be refilled and a bellows that allows the nozzle and the body wall part to be connected to each other to enable expansion and contraction of the nozzle. .

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