JP2011213413A - Tube container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tube which is given a structure preventing air from coming into the tube by remedying a structural defect of a conventional extrusion tube container that air inside the tube container oxidizes content material.SOLUTION: A tube is integrally molded out of an elastic material, and is capped with a nozzle with which the inner diameter of a hole formed in the front end of a mouth is squeezingly closed by the negative inner pressure of the tube and an external air pressure and reaches to 0 cm. When the body of the tube is pressed to extrude a content material and then returns to its original shape, a space equal in volume to the extruded content material is created inside the tube. At this time, the squeezingly closed nozzle hole prevents external air from coming therein, which brings the created space into air-depleted or vacuum state, thus enables prevention of the oxidization of the content material. When the body of the tube is made of a plastic material, extruding the content material causes the body of the tube to deform into a shape sticking closely to the content material. This gives the tube interior no room for the formation of an air layer, thus provides the same effect of preventing the oxidization of the content material as described above.

Description

  The present invention relates to a tube container mouth structure for diluting the air inside a tube container for the purpose of preventing the contents of the tube container from being spoiled.

Conventional tube container mouth structures are roughly classified into the following types.
1. A method of breaking the sealing material that covers the opening of the mouth.
2. A protrusion is provided inside the cap, and the mouth of the tube container is opened or closed by turning the cap. (See JP 2008-265867.)
3. A backflow prevention valve is provided at the mouth to prevent the inflow of air into the tube container. (For example, see JP-A-9-202338.)
4). A tube container sealed with a hinge cap that covers the opening of the mouth (see JP 2006-206160 A).
5. A tube container with a drip function that can reliably and stably push out only the required amount when pushing out the contents in the tube container. (See JP 2004-352252.)

  Actual application 10-7611   Utility model registration No. 3124964   JP-A-10-140879   JP-A-10-159264

  In the conventional tube container described above, since the outside air enters the tube container, the contents may start to oxidize and rot if the food or drink starts. In order to shut off the air inside the tube container and the air outside the tube container, it is necessary to attach a mechanism part with a fairly complicated and delicate structure, and the expense of creating the tube container may be excessive. .

  The present invention is intended to solve the problems of the conventional tube container configuration, and the outside air into the tube container is blocked by a simple blocking structure, and the contents in the tube container are It is an object of the present invention to prevent and prevent oxidation of the contents by generating an in-tube environment that is close to the oxygen-free state of a lean air state or a vacuum state in the tube container, which is generated by extruding.

  In order to solve the above-mentioned problems, the present invention provides a tube main body in which a thin plate of a material having elasticity is cylindrical as an extruded tube container, and a diameter smaller than that of the cylindrical main body while gradually reducing the diameter of one end of the main body. A funnel-shaped shoulder portion that reaches the mouth portion provided with male threads on the entire outer periphery, a mouth portion that is an extruded tube, and a pipe-like mouth portion tip are integrally formed.

  A pipe (hereinafter referred to as a nozzle) for extruding the contents made of a soft material having elasticity including soft rubber or acrylic fiber is provided at the tip of the mouth. The nozzle has a cylindrical shape, and the diameter of the hole at the tip of the nozzle is almost zero cm at all times, so that there is no gap between the outside and the outside air including the time when the tube contents are pushed out of the nozzle hole. Provide the property of blocking so as not to circulate inside and outside.

  As described above, even when the tube is filled with the contents, the hole at the tip of the nozzle is kept in close contact with the outside air, but if the contents are pushed out, the reduced volume Is negative pressure inside the tube. Since the negative pressure state extends to the tip of the nozzle, the tip of the nozzle is compressed by the external air pressure, the hole at the tip of the nozzle is more and more closely attached, and the effect of blocking the outside air is increased.

As described above, the hole at one end of the nozzle is in a close contact state with an inner diameter of 0 cm, and the other end of the nozzle is widened to cover the tip of the mouth, and inevitably crowns at the tip of the mouth. The provided nozzle shape has a curved bevel, and the diameter of the hole at the tip of the nozzle is 0

  The opening at the other end of the tube container body has a structure that allows the tube container to be filled and sealed after being filled with the contents, thereby blocking outside air from the tube container.

  A cap is provided at the head of the tube container to protect the nozzle and mouth. A female screw that can be screwed into a male screw provided on the entire outer periphery of the mouth is provided on the inner periphery of the cap, and the cap can be attached to and detached from the tube container by rotating the cap.

  In addition to the elastic material of the tube body, if a laminate material that has plastic properties and blocks out the outside air is used, the tube body for the volume of the extruded contents will be recessed and no vacuum space will be generated . Even in this method, no outside air enters the tube container, and no air layer is formed between the tube container and the contents, so that oxidation cannot occur.

  As described above, the tube container having a negative pressure inside the present invention maintains the original shape by the elasticity of the material of the tube container even after the body portion of the tube container is pressed and the contents are squeezed out from the nozzle. The air becomes dilute or evacuated and is effective in preventing the contents from being spoiled and oxidized.

  When the air inside the tube becomes lean, the inner diameter of the nozzle will be 0cm in diameter, preventing the ingress of outside air, but if the pressure inside the nozzle inner hole becomes negative, the soft nozzle will be compressed to the outer pressure. As a result, the inner hole portion of the tip of the nozzle is further brought into close contact with the nozzle, and the entry of outside air is increasingly prevented.

  As described above, the negative pressure in the tube container is effective in preventing the oxidation of the contents, and is also effective in the contents leakage phenomenon from the inner end of the nozzle.

  Full sectional view of the tube container of the present invention   Full sectional view of the same   Nozzle perspective view   Detailed full sectional view of the tube container head   Half sectional view of the tube container

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

  In the figure, reference numeral 1 denotes a main body of a cylindrical tube container, in which a funnel-shaped shoulder portion 2, a cylindrical mouth portion 3 provided with a male screw 11 on the outer periphery, and a front end 4 of the mouth portion are integrally formed. The terminal portion 5 ′ of the nozzle 5 is attached to the tip 4 of the mouth, and the tip 8 of the nozzle and the inner hole 8 ′ are in close contact. The cap 10 is provided with a female screw 12 on the inner periphery and is screwed with a male screw 11 provided on the outer periphery of the cylindrical mouth portion 3. The opposite end 9 of the head of the cylindrical tube container is open.

  Although the contents 13 are not shown in the figure, immediately after the tube body opening 9 is brought into close contact with the contents, the tube body 1, the funnel-shaped shoulder 2, the mouth 3 (same as reference numeral 6), and the mouth tip 4 (same as reference numeral 7) and the nozzle 5 is filled with contents.

  However, if the material of the tube body is elastic, the reduced volume of the extruded contents will create a vacuum, but it is unclear and cannot be expressed in which part it depends on how the tube container is stored. .

  The operation of the above configuration will be described below. The tube container is filled with the contents from the end 9. If the abdomen of the tube container 1 that is 100% filled is pressed, the content corresponding to it is pushed out from the tip 8 of the nozzle. The abdomen of the pressed tube is restored to its original shape by elasticity, but because the structure has a structure that blocks the entry of air into the tube, the volume that is pushed out and the content is reduced makes the inside of the tube a negative pressure state .

  Even in the state in which the nozzle 5 is filled with the contents, the tip inner hole portion 8 keeps a close contact state due to the engagement of the soft material with the molded shape. In this case, the length of the nozzle is taken into consideration so that the entire nozzle is drawn into the inner end 7 of the mouth due to a negative pressure and does not have a reverse shape.

  The tube body 1 is made of a material that deforms when an external force is applied to it and does not return to its original shape even when the external force is removed (hereinafter referred to as plastic), and the content 13 is pushed out to reduce the internal volume. When the tube body 1 changes to a shape corresponding to the amount of decrease in the content 13, no negative pressure is generated in the tube, but the oxidation of the content 13 does not proceed because there is no entry of outside air.

DESCRIPTION OF SYMBOLS 1 Tube main body 2 Funnel-shaped shoulder part 3 Mouth part 4 Mouth end 5 Nozzle 5 'Nozzle end part 6 Mouth inside 7 Mouth end inner part 8 Nozzle front end part 8' Nozzle hole 9 Nozzle hole Opening 10 Cap 11 Male thread 12 Female thread 13 Contents …… No indication

Claims (2)

1. As an extruded tube container, a tube main body made of a thin plate of elastic material, a shoulder portion having a funnel shape at one end of the main body, and a male screw provided on the entire outer periphery that is smaller than the diameter of the tube main body by the shoulder portion The mouth and the pipe-shaped mouth tip are integrally molded,
2. A nozzle made of an elastic material containing hard rubber or acrylic fiber is crowned at the tip of the mouth, and the nozzle tip has a close contact shape with a diameter of 0 cm,
3. The other end of the tube body is closed and closed,
4). A tube container in which a cap provided with a female screw threadedly engaged with a male screw on the outer periphery of the mouth is removably fitted to the tube container. 1. The tube container according to claim 1, wherein the tube body is made of a laminated material that has plastic properties and blocks outside air.

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