JP2006008171A - Fixed quantity extraction container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixed quantity extraction container capable of simplifying a structure around an extraction port and forming a bottom part of high strength as necessary. <P>SOLUTION: A flexible, thin-walled synthetic resin-made sleeve 1 is extrusion-molded in a seamless manner. A rigid synthetic resin-made neck part 2 is integrally insertion-molded with an upper end 1a of the sleeve with the dimension to be within the outside diameter of the sleeve. A cylindrical part 3 to be fitted in the sleeve, a flange part 4 expanded outwardly from a lower end of the sleeve, and a regulation part 5 which is arranged in the cylindrical part, extends toward the upper end side of the sleeve and regulates the deflection of the sleeve are provided on a lower end 1b of the sleeve. A rigid bottom part 6 is attached thereto. A rigid holding ring 7 which is slidably inserted from an upper end to a lower end of the sleeve, holds the sleeve between the cylindrical part and itself, and is joined with the flange part is attached to the sleeve. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a quantitative extraction container capable of simplifying the structure around an extraction port and forming a bottom portion with high strength as required.

For example, Patent Document 1 is known as this type of quantitative extraction container. This quantitative extraction container is provided with a regulating body that protrudes inward from the mouth of the blow-molded container body that is squeezed to extract contents from the extraction port, and regulates the amount of squeezing operation of the container body. In addition, the restricting body is configured by providing an opening for communicating the inside of the container body and the extraction port.
Japanese Utility Model Publication No. 5-40183

  By the way, in the above prior art, on the premise that the container body is blow-molded, a regulating body must be provided for the extraction port on the gas blowing side because of the provision of the regulating body inside thereof, There was a problem that the structure around the mouth became complicated. Also, in blow molding, the thickness of the extraction port can be set appropriately according to the molding method, but the bottom part will be formed thin, so if you want to ensure the strength of the bottom part even in thin containers In particular, there is a problem that it is unsatisfactory when it is desired to sufficiently secure the strength of the bottom portion with respect to the pressing operation associated with the extraction.

  The present invention was devised in view of the above-described conventional problems, and provides a quantitative extraction container capable of simplifying the structure around the extraction port and forming the bottom portion with high strength as required. The purpose is to do.

  The quantitative extraction container according to the present invention is formed by seamlessly forming a thin flexible synthetic resin sleeve having flexibility by extrusion molding, and is fitted into the outer diameter of the sleeve by insert molding at one end of the sleeve. A neck part made of a synthetic resin having rigidity in dimensions is integrally formed, and at the other end of the sleeve, a cylindrical part fitted into the sleeve, and a flange part projecting outward from the other end of the sleeve A restricting portion that is disposed in the cylindrical portion and extends toward one end of the sleeve and restricts the amount of flexibility of the sleeve, and attaches a rigid bottom part to the sleeve. A pressing ring having rigidity to insert the sleeve between the cylindrical portion and the cylindrical portion and to be joined to the flange portion is mounted.

  In the quantitative extraction container according to the present invention, the structure around the extraction port can be simplified, and the bottom portion can be formed with high strength as required.

  Hereinafter, a preferred embodiment of a quantitative extraction container according to the present invention will be described in detail with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the quantitative extraction container according to the present embodiment is basically formed by extruding and forming a thin flexible synthetic resin sleeve 1 having flexibility. 1 is integrally molded with a synthetic resin neck component 2 having a size that fits the outer diameter of the sleeve 1 by insert molding, and the other end of the sleeve 1 is fitted into the sleeve 1. A portion 3, a flange portion 4 projecting outward from the other end of the sleeve 1, and a tube portion 3 that extends toward one end side of the sleeve 1 and regulates the amount of flexibility of the sleeve 1. A bottom part 6 having rigidity is provided, and a rigid bottom part 6 is mounted. The sleeve 1 is inserted into the sleeve 1 so as to be slidable from one end to the other end. Has rigidity to be joined with 4 Configured to hold the ring 7 by mounting.

  In the present embodiment, the sleeve 1 is made of a synthetic resin such as polyethylene as a raw material, and is formed into a thin wall by a well-known extrusion molding. Thus, the sleeve 1 is flexible and flexible, and the circumferential surface has no seams. The upper end 1a and the lower end 1b are both formed in a hollow cylindrical shape that is open. The upper end 1a of the sleeve 1 is integrally formed with a neck part 2 which is made of synthetic resin such as polypropylene and has a thickness greater than that of the sleeve 1 and has a high rigidity.

  The neck part 2 is integrally formed with the sleeve 1 by well-known insert molding in which a synthetic resin is injected and molded on the upper end 1a of the sleeve 1 inserted into the mold. The neck part 2 is formed by integrally forming an extraction cylinder part 8 having a screw part to which a cap (not shown) is screwed and a shoulder part 9 extended outward from the lower end of the extraction cylinder part 8. . The extraction cylinder 8 is equipped with an extraction nozzle 10 for extracting contents. The neck part 2 is set so that the outer diameter of the shoulder 9 is smaller than the outer diameter of the sleeve 1, whereby the sleeve 1 is integrated with the neck part 2 in such a form that the opening of the upper end 1 a is narrowed. .

  The bottom component 6 includes a disc-shaped bottom plate portion 11, a cylindrical portion 3 that is formed upward from the periphery of the bottom plate portion 11, and is fitted into the sleeve 1 from the opening at the lower end 1 b, and the periphery of the bottom plate portion 11. An annular flange 4 which is formed to extend further outward from the position of the cylinder part 3 and a neck part 2 which is positioned in the cylinder part 3 from the bottom plate part 11 toward the upper end 1a side of the sleeve 1. The restriction portion 5 extended to an appropriate height position lower than the shoulder portion 9 position is integrally formed. The bottom part 6 is made of synthetic resin such as polypropylene as a raw material, and is formed with high dimensional accuracy and considerable thickness with high rigidity by injection molding. The bottom part 6 may be made of metal.

  The cylindrical portion 3 has a flexible lower end 1b of the sleeve 1 in order to increase the adhesion between the outer peripheral surface of the sleeve 1 and the inner peripheral surface of the sleeve 1 that are overlapped with each other by insertion into the sleeve 1 to ensure high sealing performance. The outer diameter dimension of the sleeve 1 is slightly larger than the inner diameter dimension of the sleeve 1 so that the outer diameter dimension is fitted into the sleeve 1 while being slightly expanded. A tapered surface 3 a that is narrowed upward is formed on the outer periphery of the upper end of the cylindrical portion 3 in order to facilitate insertion into the sleeve 1. Further, when the bottom part 6 is attached to the sleeve 1 via the cylindrical portion 3, the flange portion 4 is projected outward from the lower end 1 b of the sleeve 1. The restricting portion 5 is formed with an outer diameter smaller than the inner diameter of the sleeve 1, and when the sleeve 1 having flexibility is squeezed from the outside and flexibly deformed, the amount of flexible deformation is constant. In order to regulate the amount, a double tube structure is provided inside the sleeve 1.

  The holding ring 7 is formed in a hollow cylindrical shape, and the inner diameter of the pressing ring 7 is slid from the upper end 1 a to the lower end 1 b of the sleeve 1, and the lower end 1 b of the sleeve 1 in a state where the inner diameter is pushed and expanded by the cylindrical portion 3. It is set so as to substantially match the peripheral outer diameter size. Further, the outer diameter dimension of the pressing ring 7 is set so as to substantially match the outer diameter dimension of the flange portion 4. The holding ring 7 may be made of synthetic resin or metal.

  The assembly operation of the quantitative extraction container according to this embodiment will be described. First, the sleeve 1 is extruded. The neck part 2 is integrally formed by insert molding on the upper end 1a of the extruded sleeve 1. On the other hand, the bottom part 6 and the holding ring 7 are prepared separately. The cylindrical part 3 of the bottom part 6 is fitted into the inside from the opening of the lower end 1 b of the sleeve 1, whereby the bottom part 6 is attached to the sleeve 1. By this mounting operation, the lower end 1b of the sleeve 1 overlapping the cylindrical portion 3 is slightly expanded. After that, the holding ring 7 is inserted from the upper end 1a of the sleeve 1 to which the neck part 2 is attached, and the holding ring 7 is slid to the lower end 1b of the sleeve 1 that abuts against the collar portion 4, so Push in. Thereby, the sleeve 1 is firmly sandwiched between the pressing ring 7 and the cylindrical portion 3 of the bottom part 6. Finally, the pressing ring 7 and the flange portion 4 of the bottom part 6 are joined by bonding or the like.

  Next, the usage state of the quantitative extraction container according to the present embodiment will be described. In use, the extraction nozzle 10 is directed downward. When the sleeve 1 is gripped with fingers and flexibly deformed so as to be constricted, the sleeve 1 is flexibly deformed with a certain amount of flexibility in contact with the restricting portion 5, thereby extracting a certain amount of contents from the extraction nozzle. 10 can be extracted. After the extraction, when the finger is removed from the sleeve 1, the outside air is sucked from the extraction nozzle 10, and the sleeve 1 is restored to its original shape before the flexible deformation. Therefore, the sleeve 1 is deformed by the same constant flexible amount by the restricting portion 5 also in the re-extraction operation, and the contents can always be extracted quantitatively.

  In the quantitative extraction container according to the present embodiment described above, the sleeve 1 by extrusion molding is used, and the neck part 2 is integrally molded by insert molding on the upper end 1a of the sleeve 1, while the lower end 1b of the sleeve 1 is formed. In addition, since the bottom part 6 provided with the restriction part 5 is mounted, the restriction part 5 can be provided from the lower end 1b of the sleeve 1, and the structure around the neck part 2 to which the extraction nozzle 10 is attached is simplified. be able to. Further, since the sleeve 1 serving as the main body is formed by extrusion molding, and the bottom part 6 is mounted as a separate part on the sleeve 1, the thickness of the bottom part is appropriately set as necessary even though it is a thin container. It is possible to increase the durability required as a quantitative extraction container, for example, when it is desired to sufficiently secure the strength of the bottom part against the pressing operation associated with the quantitative extraction. .

It is side sectional drawing which shows suitable one Embodiment of the quantitative extraction container concerning this invention. It is a sectional side view which shows the use condition of the quantitative extraction container of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sleeve 2 Neck part 3 Cylinder part 4 Gutter part 5 Restriction part 6 Bottom part 7 Holding ring

Claims (1)

  A thin, flexible synthetic resin sleeve having flexibility is formed seamlessly by extrusion molding, and at one end of the sleeve, it is made of synthetic resin having rigidity with a size that fits into the outer diameter of the sleeve by insert molding. The neck part is integrally formed, and the other end of the sleeve is provided with a cylindrical portion fitted into the sleeve, a collar portion protruding outward from the other end of the sleeve, and disposed within the cylindrical portion. A regulating portion that extends toward one end of the sleeve and regulates the amount of flexibility of the sleeve, and is attached with a rigid bottom part, and is slidable from one end to the other end of the sleeve. A quantitative extraction container, wherein a pressing ring having rigidity to be inserted and sandwiched between the sleeve portion and the flange portion is attached.

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