JP2006182442A - Composite container composed of outer container and inner container having shoulder cover molded integrally - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite container which is composed of two parts, i.e., an inner container and an outer container by integrally molding a shoulder cover and the inner container by a stretch blow molding. <P>SOLUTION: In the composite container composed of the outer container and the inner container which is molded integrally with the shoulder cover, the outer container is provided with a body peripheral wall having a fixing tube at the upper end, and the inner container is provided with a mouth tube and the shoulder cover provided continuously to the mouth tube, and the shoulder cover is composed of: a flange provided projectingly to the lower end of the tube; and an engaging tube provided hanging down from the periphery edge of the flange. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a composite container including an outer container and an inner container, and more particularly to a composite container in which a shoulder cover is integrally formed with an inner container.

  2. Description of the Related Art Conventionally, a composite container in which an inner container that stores contents is stored in an outer container and a shoulder cover is fitted on the outer container is known (see, for example, Patent Document 1).

The container described in Patent Document 1 is mounted on a container body (2), a refill container (3) that is detachably stored in the container body (2), and an opening (2a) of the container body (2). The refill container (3) is composed of three parts including a protector (1) for preventing the refill container (3) from being pulled out from the container body (2).
JP-A-7-303517

  However, the conventional container is composed of three parts, an outer container (container body), an inner container (refill container), and a shoulder cover (protector). There was a problem of high production costs.

  An object of the present invention is to provide a composite container in which a shoulder cover and an inner container are integrally formed by stretch blow molding so as to be constituted by two parts of the inner container and the outer container. For the purpose.

 In order to solve the above problems, the present invention is a composite container comprising an outer container and an inner container integrally formed with a shoulder cover as a composite container, the outer container having a barrel provided with a mounting cylinder at the upper end. The inner container includes a mouth tube portion and a shoulder cover provided continuously to the mouth tube portion; the shoulder cover includes a flange projecting from a lower end of the mouth tube portion; The structure characterized by comprising from the engaging cylinder hung from the periphery of the flange is employ | adopted.

  As another embodiment of the composite container, the inner container has a shoulder portion together with the mouth tube portion, and the inner tube stopper is inserted into the mouth tube portion, and the locking portion of the iron inner plug is provided on the lower surface of the shoulder portion. A configuration characterized in that it is locked is adopted, and a configuration characterized in that the inner container includes a thin barrel portion and a bottom portion is adopted.

Since the shoulder cover is continuously connected to the mouth tube portion of the inner container and the engagement tube of the shoulder cover is attached to the mounting tube of the outer container, the shoulder portion of the inner container can be protected. .
As a result, the shoulder cover and the inner container can be integrally formed, and the production cost can be reduced by reducing three parts to two parts.

  Next, embodiments of the composite container of the present invention will be described with reference to examples.

  In FIG. 1, A is an outer container, B is an inner container, and C is a cap, which are molded using a synthetic resin as a material.

The outer container A is formed by injection molding and includes a body peripheral wall 1 and a bottom 2.
A stepped portion 3 is provided on the outer periphery above the trunk peripheral wall 1, and a reduced diameter mounting cylinder 4 is formed. On the outer periphery of the mounting cylinder 4, an engagement protrusion 5 is provided.

The inner container B is formed by stretch blow molding, and includes a mouth tube portion 10, a shoulder cover 11, a shoulder portion 12, a body portion 13, and a bottom portion 14 that are connected to the mouth tube portion 10.
A screw 15 for screwing the cap C is provided on the outer periphery of the mouthpiece 10.

  The shoulder cover 11 includes a flange 16 continuously provided from the lower end of the mouth tube portion 10, and an engagement cylinder 17 that is suspended from the outer peripheral edge of the flange 16 and whose inner periphery engages with the outer periphery of the mounting cylinder 4 of the outer container A. On the inner periphery of the engagement cylinder 17, an engagement recess 18 that engages with the engagement protrusion 5 of the attachment cylinder 4 is provided.

  The cap C includes a top wall 20 and a side peripheral wall 22 that is provided from the periphery of the top wall 20 and is provided with a screw 21 that is screwed with the screw 15 of the mouth tube portion 10 of the inner container B. It is adapted to be screwed to the mouth tube portion 10 of the above.

Next, usage modes and operational effects of the composite container of the present embodiment will be described.
In assembling the composite container, the inner container B filled with the contents and closed is inserted into the outer container A, and the engagement cylinder 17 of the shoulder cover 11 of the inner container B is inserted into the mounting cylinder 4 of the outer container A. Attach.
At that time, the engagement protrusion 5 of the mounting cylinder 4 of the outer container A and the engagement recess 18 of the shoulder cover 11 of the inner container B are engaged, and the outer container A and the inner container B are coupled.

When using the contents, the contents can be poured out by opening the cap C and tilting with the outer container A.
When the container is closed after pouring, the cap C is closed.

  When the cap C is opened and closed, the engagement cylinder 17 of the shoulder cover 11 is joined to the mounting cylinder 4 of the outer container A, so that the cap C can be rotated by pressing the shoulder cover 11 against the outer container A. Now it can be opened and closed easily.

  When the contents in the inner container B are used up, the attachment cylinder 4 of the outer container A and the shoulder cover 11 of the inner container B are disengaged, the inner container B is removed, and a new inner container filled with the contents By attaching B to the outer container A, the inner container B can be refilled and used as a refill container.

When the body 13 of the inner container B is thin, first, the inner container B is attached to the outer container A, and after the contents are filled, the cap C is closed.
In capping, a high torque can be applied by pressing and holding the shoulder cover 11 to the outer container A with a jig, so that even a thin container can be easily capped.

  In addition, a pump dispenser can be attached to the mouth tube portion 10 of the inner container B so that it can be used as a dispenser container. When the inner container B body portion 13 is made thin with flexibility, the contents can be reduced. Accordingly, only the body 13 of the inner container B is reduced, and the contents in the container can be poured out to the end.

Since the composite container of the present embodiment only needs to be able to mount the inner container inside the outer container, the shape of the container itself can be formed as an elliptical or rectangular container in addition to a circular shape.
The shape of the container and the mode of use as the container are not limited to those shown in the above examples.

Next, in order to use the container of the above embodiment for, for example, a mascara container, an embodiment in which an iron stopper is attached to the mouth tube portion of the inner container will be described.
In FIG. 2, Aa is an outer container, Ba is an inner container, and D is an ironing inner plug. The outer container Aa and the inner container Ba are formed of synthetic resin, and the ironing inner plug D is a soft material such as an elastomer. It is molded as a material.
A cap provided with a brush for adhering the contents is attached to the mouth tube portion 10a of the inner container Ba (not shown).

Since the configuration of the outer container Aa is the same as that of the first embodiment, detailed description thereof is omitted.
The inner container Ba is formed by stretch blow molding, and includes a mouth tube portion 10a and a shoulder cover 11a, a shoulder portion 12a, a trunk portion 13a, and a bottom portion 14a.
A screw 15a for screwing a cap provided with a brush is provided on the outer periphery of the mouth tube portion 10a.

  The shoulder cover 11a is provided with a flange 16a continuously provided from the lower end of the mouth tube portion 10a, and a locking recess 18a that is suspended from the outer peripheral edge of the flange 16a and engages with the outer periphery of the mounting tube 4a of the outer container Aa. It consists of an engagement cylinder 17a.

The ironing plug D includes a flange 30 that engages with the upper end of the mouth tube portion 10a of the inner container Ba, and a cylinder body 31 that engages with the inner periphery of the mouth tube portion 10a.
The cylindrical body 31 is provided with a wiper portion 32 projecting inward from an intermediate portion thereof. The cylindrical body 31 is engaged with the lower surface of the shoulder portion 12a of the inner container Ba below the outer periphery of the cylindrical body 31, A locking portion 33 is provided to prevent the increase of the protrusion.

Next, the function and effect of the above configuration will be described.
The use form of the contents is the same as the use form of the conventional mascara container. When the brush provided for the cap is pulled out from the inner container Ba, the amount of mascara attached to the brush is adjusted by the wiper portion 32 of the ironing plug D. Is done.
At that time, the locking portion 33 of the ironing inner stopper D is engaged with the lower surface of the shoulder 12a of the inner container Ba, thereby preventing the ironing inner stopper D from coming out of the mouth tube portion 10a of the inner container Ba.

  In the above embodiment, the mascara container is used, but it can be applied not only to a mascara applicator but also to an applicator such as a hair dye using a brush or a chemical solution.

Next, modified embodiments of the above embodiments will be described.
In each of the above embodiments, the inner container and the cap are screwed and screwed, but it is sufficient that the cap can be attached to the inner container, so that the locking protrusion and the engaging protrusion, or the locking protrusion and the concave groove The shape of the cap and the inner container is not limited to the above embodiments.

  In each embodiment, the engagement protrusion provided on the mounting cylinder of the outer container and the engagement recess provided on the engagement cylinder of the shoulder cover of the inner container engage with each other, so that the outer container and the inner container are The refillable container is a refillable container that can be detachably connected, but when used as a single-use container, the outer container mounting cylinder and the inner container engaging cylinder, or the bottom upper surface of the outer container If the bottom part of the inner container is bonded with an adhesive or ultrasonic welding, the outer container and the inner container can be integrated.

  Further, since the outer container and the inner container are molded from synthetic resin, it is not necessary to separate them as waste and dispose of them.

In each example, the outer container is manufactured with a transparent synthetic resin, the inner container is manufactured with an opaque synthetic resin, and the outer container and the inner container are integrated by decorating the outer periphery of the inner container. Thus, a composite container can be manufactured in which the decoration of the inner container can be seen from the outside of the outer container.
Moreover, the content in an inner container can be visually recognized from the exterior by providing display parts, such as a product display, in the trunk | drum of an inner container as a refill container.
Furthermore, by enclosing a novelty or premium seal between the outer container and the inner container, further sales promotion can be expected.

By inserting the inner container integrally molded with the shoulder cover into the outer container and attaching the engagement cylinder of the shoulder cover to the mounting cylinder of the outer container, the inner container can be stored and installed in the outer container. It was.
And since the shoulder cover was removed and it consisted of two parts, the production cost could be reduced, and it was possible to deal with containers of various shapes, thus expanding the application range.

  The composite container of the present invention can be widely used as cosmetics, medicines, foods, daily necessities, and other containers.

It is a cross-sectional elevation view of the composite container of the first embodiment of the present invention. It is a cross-sectional elevation view of the composite container of the second embodiment.

Explanation of symbols

A, Aa Outer container B, Ba Inner container C Cap D Ironing plug 1 Trunk wall 2 Bottom 3 Step 4, 4a Mounting cylinder 5 Engagement ridge 10, 10a Mouth tube 11, 11a Shoulder cover 12, 12a Shoulder 13, 13a Body 14, 14a Bottom 15, 15a, 21 Screw 16, 16a, 30 Flange 17, 17a Engagement cylinder 18, 18a Engagement recess 20 Top wall 22 Side peripheral wall 31 Cylindrical body 32 Wiper part 33 Engagement part

Claims (3)

A composite container comprising an outer container and an inner container integrally formed with a shoulder cover,
The outer container has a waist wall provided with a mounting cylinder at the upper end,
The inner container includes a mouth tube portion and a shoulder cover provided continuously to the mouth tube portion,
The shoulder cover is composed of a flange projecting from the lower end of the mouth tube portion and an engagement tube suspended from the periphery of the flange. The inner container has a shoulder portion along with a mouth tube portion,
2. The composite container according to claim 1, wherein a squeezing inner stopper is inserted into the mouth tube part, and a locking part of the squeezing inner stopper is locked to the lower surface of the shoulder part.   The composite container according to claim 1, wherein the inner container includes a thin body portion and a bottom portion.

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