JP5208876B2 - Double container - Google Patents

Description

  The present invention relates to a double container provided with an interior body filled with the contents and an exterior body that accommodates the interior body inside, and in particular, the contact of the contents filled in the interior body with the air. It is intended to minimize and maintain the quality of the contents over time.

  As a double container, the interior container (interior body) filled with cosmetics such as lotion, contents such as shampoo, rinse or liquid soap is filled in the exterior container, and the pump attached to the discharge port of this interior container Is known to reduce the volume of the inner container by operating the container and discharge the contents, and the contents of the inner container are directly crushed by the hand of the body of the outer container (outer body) A squeeze-type container is also known, and in recent years it has come to be applied not only to toiletry products, but also as a container in the food field containing seasonings such as soy sauce and oil (for example, patents) Reference 1).

Japanese Patent Application Laid-Open No. 2003-122012

  This type of container has the advantage that all the contents filled in the interior container can be used (especially the delamination container), and after the contents have been used up, a new interior container filled with the contents can be used. It can be used as a refill container to replace the outer container, and the outer container can be reused as it is, so it is an extremely useful means in terms of effective use of resources. The contents filled in the interior container are exposed directly to the air through the mouth of the container when the container is opened (such as when the sealing seal is peeled off or when the refill container is replaced), which affects the quality of the contents. There was concern about the possibility of giving, and further improvements were required.

  An object of the present invention is to propose a novel double container capable of minimizing the contact of the contents filled in the interior container with air and maintaining the quality of the contents over a long period of time.

The present invention is a double container comprising an interior body for filling the contents, and an exterior body for housing the interior body and squeezing the body portion of the interior body by a squeeze of the body portion to discharge the contents. There,
An inner plug is provided at the mouth of the interior body, and the interior body is suspended by detachably linked to the interior stopper, and is fixedly held at the mouth of the exterior body while the interior body is suspended. It has a dispensing cap with a nozzle that can be used.
The inner plug is provided with a switching valve that allows the inside of the interior body to communicate with the nozzle of the extraction cap by relatively rotating while maintaining the linkage posture with the extraction cap,
The dispensing cap is provided with a check valve that can be opened only when the body portion of the exterior body is crushed, and that discharges contents to the outside through the nozzle through the opening of the switching valve. It is a double container.

  The body portion of the exterior body is preferably provided with an air suction hole for introducing air into a gap formed between the interior body and the exterior body. Further, it is desirable that the interior body be a refill container that can be replaced only by it.

  A switching valve is provided between the check valve that opens only when the body part of the exterior body is squeezed (when crushed) and the interior body, and the contents can be poured out by this switching valve. Therefore, the contents filled in the interior body and the air are not in direct contact with each other, and the quality of the contents is maintained over a long period of time (especially in foods, the freshness is maintained).

It is the figure which showed embodiment of the double container according to this invention. It is the figure which showed the nozzle cap of the double container shown in FIG. It is the figure which expanded and showed the principal part of the interior body of the double container shown in FIG. It is the figure which showed the exterior body of the double container shown in FIG. It is the figure which showed CC cross section of FIG. It is explanatory drawing of the positioning point. It is the figure which showed the AA cross section of FIG.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a view showing an embodiment of a double container (made of synthetic resin) according to the present invention as a squeeze-type container having an interior body and an exterior body, and FIGS. It is the figure which showed each part of the container shown in (3) separately.

  In the figure, reference numeral 1 denotes an interior body including a filling space M that is filled with contents. The interior body 1 has a bottle shape, and is formed of a thin container that can reduce the volume of the filling space M by crushing the trunk portion. A mouth portion 1a that forms a discharge path for contents is provided (see FIG. 3).

  Reference numeral 2 denotes a bottle-shaped exterior body in which an internal space N for housing the interior body 1 is formed (see FIG. 4). The exterior body 2 includes an inner body 1 that is inserted into the internal space N, a mouth portion 2a that fixes and holds the interior body 1 via a nozzle cap, which will be described later, and a body that is connected to the mouth portion 2a and surrounds the interior body 1 It is composed of a part 2b and a bottom part 2c connected to the body part 2b, and at least the body part 2b can be crushed (made of a soft material or the like) so as to enable a squeeze operation. ing.

  Reference numeral 3 denotes an inner plug that is attached to the mouth portion 1a of the interior body 1 so that it cannot rotate and cannot be pulled out (see FIG. 3). The inner plug 3 surrounds the mouth portion 1a of the interior body 1, forms a groove portion opened downward with the short inner cylinder 3a, and is not rotatable and cannot be pulled out from the mouth portion 1a. And a cylindrical body 3c that is integrally connected to the upper end of the annular peripheral wall 3b, and the cylindrical body 3c includes a through passage that connects the inside and outside of the interior body 1. L (see FIG. 3) is formed.

  Reference numeral 4 denotes a pouring cap that is detachably linked to the cylindrical body 3c of the inner plug 3 (see FIG. 2). The pouring cap 4 includes a base 4a that is screwed (or may be undercut) to the mouth 2a of the exterior body 2, and a nozzle 4b that is provided on the base 4a.

The base 4a surrounds the mouth portion 2 of the exterior body 2, and an annular body 4a ₁ (shown by screw engagement) engaged with a screw or an undercut provided on the inner peripheral wall of the base body 4a. It consists of a cylinder 4a ₂ standing on the upper surface of the top wall of the annular body 4a ₁ , and a hanging cylinder 4a ₃ with a bottom hole that forms a recess e with an open top is provided in the center of the top wall of the cylinder 4a _2. An annular recess 4a ₄ (see FIG. 2) opened downward is formed between the cylindrical body 4a ₂ and the hanging cylinder 4a ₃ .

The nozzle 4b includes a peripheral wall 4b 1 of engagement by screws or undercut on the outer side of the cylindrical body 4a ₂ of the base 4a _(illustrates as by threaded engagement.), Integrally connected to the peripheral wall 4b ₁ consists dispensing portion 4b ₂ to form a flow path of the contents inside thereof to form a nozzle head, the cylindrical body 4b ₃ of drooping cylinder 4a ₃ forming a flow path g inside the spout portion 4b ₂ It enters the recess e (see FIG. 2).

5, held between mutual droop tube 4a ₃ and the nozzle body 4b _2, a fixed check valve (three-point valve, etc.). The check valve 5 includes a valve body 5a arranged facing the bottom hole of the hanging tube 4a _3, which consists of a cylindrical fixed edge 5b integrally connected to the edge of the valve body 5a, exterior body The one that is opened only when the internal pressure of the interior body 1 is increased by the squeeze operation in the body portion 2b of No. 2 and closes immediately when the internal pressure is reduced.

  6 is the switching valve arrange | positioned in the penetration path L of the cylinder 3c of the inner plug 3 (refer FIG. 3). This switching valve 6 is linked in a liquid-tight manner at least at the upper part of the cylindrical body 3c of the inner plug 3 and cannot be pulled out, and has a length extending to the lower vicinity of the mouth 1a of the interior body 1. And a bottom wall 6b that is integrally connected to the cylinder 6a to form the bottom thereof.

  Reference numeral 7 denotes an opening shown in an example in which two are provided at positions opposite to the cylinder 6 a of the switching valve 6, and 8 denotes a recess provided on the inner wall surface of the cylinder 3 c of the inner plug 3. As shown in FIG. 5, the opening 7 provided in the cylinder 6a of the switching valve 6 is aligned with the inner wall surface of the cylinder 3c of the inner plug 3 as shown in FIG. 5 (see FIG. 3). Although it is in a closed state, the switching valve 6 and the cylindrical body 3c of the inner plug 3 are relatively rotated (for example, 90 °), and are provided on the inner wall surface of the opening 7 and the cylindrical body 3c of the inner plug 3. The opening 7 is opened by matching the recessed portion 8 (see FIG. 1).

  Here, the alignment of the opening 7 and the recess 8 is performed by separately providing means such as a projection 6c as shown in FIG. 6 and a groove 3d for guiding and positioning the projection 6c against the end. In addition, the alignment may be performed by applying this (the positions of the protrusions and the grooves may be reversed).

9 is a groove (see FIG. 3) provided on the upper inner peripheral wall of the cylindrical body 3c of the inner plug 3. 10 is provided around the outer peripheral wall of the hanging cylinder 4a ₃ in the annular recess 4a ₄ . It is a vertical rib which is inserted and linked to each other so as not to rotate (see FIG. 2). A plurality of grooves 9 and vertical ribs 10 are provided around the outer peripheral wall of the hanging cylinder 4a ₃ as shown in FIG. By rotating the outlet cap 4 and the inner plug 3 relatively, the switching valve 6 is rotated in the cylindrical body 3 c of the inner plug 3. The groove portions 9 and the vertical ribs 10 can be changed to spline grooves and spline teeth that match the spline grooves, and the groove portions and the vertical ribs may be provided in reverse.

Further, 11 is a groove provided on the wall of the cylindrical body 4a ₂ of the pouring cap 4 (see FIG. 2). The groove portion 11 is composed of a vertical groove 11a and a horizontal groove 11b connected to the upper end of the vertical groove, and another groove portion 11 is formed at an opposing position.

Reference numeral 12 denotes a pair of protrusions provided at positions facing the outer peripheral wall of the cylindrical body 3 c of the inner plug 3. The projection 12 is inserted a cylindrical body 3c of the inside plug 3 into the annular recess 4a _4, fitted was a time in fitted into said longitudinal groove 11a, pouring cap 4 and interior by rotating along the lateral groove 11b A protrusion (see FIG. 3) that firmly connects the body 1, and the groove 11 and the protrusion 12 constitute a bayonet-type connection structure. Then, when the protrusion 12 hits the groove end of the lateral groove 11b and the rotation of the protrusion 11 stops, the opening 7 and the recess 8 are made to coincide with each other, whereby the inside of the interior body 1 and the inside of the switching valve 6 are opened. The contents can be discharged through communication. Reference numeral 13 denotes an air suction hole in an example provided in the body portion 2b of the exterior body 2 (see FIG. 4).

  The air supply hole 13 introduces air into a gap formed between the body portion 2 b and the interior body 1 when the body portion 2 b is crushed by the squeeze of the exterior body 2, thereby changing the external shape of the exterior body 2. It has a function to quickly restore the original shape. The air suction hole 13 can also be provided in the bottom 2c of the exterior body 2 when there is a concern about the intrusion of moisture or the like.

  In the double container according to the present invention, the interior body 1 before being linked to the dispensing cap 4 is closed when the opening 7 provided in the cylindrical body 6a of the switching valve 6 contacts the inner peripheral wall of the inner plug 3. In this state, it can be distributed as a product (refill container).

In order to store the interior body 1 in the internal space N of the exterior body 2 so that the contents in the interior body 1 can be poured out, first, the distal end portion of the cylindrical body 3c of the inner plug 3 is placed in the dispensing cap 4 Are inserted into and fitted into the annular recess 4a ₄ and then the pouring cap 4 and the inner plug 3 are relatively rotated so that an opening 7 is provided on the inner wall surface of the cylindrical body 3c of the inner plug 3. Align with the recessed portion 8. Then, the inner body 1 may be housed in the inner space N of the outer body 2 and the annular body 4 a ₁ of the base 4 a constituting the pouring cap 4 may be fixed to the mouth portion 2 a of the outer body 2.

In a state where the opening 7 and the recess 8 provided on the inner wall surface of the cylindrical body 3 c of the inner plug 3 match, the interior of the interior body 1 and the inside of the switching valve 6 communicate with each other through the opening 7. Then, by squeezing the body portion 2b of the exterior body 2 to squeeze the body portion 1b of the interior body 1 to increase the internal pressure, the contents in the filling space M become the mouth portion 1a, the opening 7, the check valve 5, through the spout path g it is discharged to the outside from the nozzle member 4b _2.

  In the double container according to the present invention, since the container is opened only by rotating the switching valve 6 in the cylindrical body 3c of the inner plug 3, the contents filled in the interior body 1 are not exposed to air. When the squeeze operation in the exterior body 2 is stopped, the check valve 5 is immediately held closed, so that the content filled in the interior body 1 does not come into contact with air, and the content Maintain its quality over time (freshness does not drop in food-filled items).

  In the embodiment of the present invention, the example in which the dispensing cap 4 is constituted by two members, that is, the base 4a and the nozzle 4b, is shown as an example, but it can be integrally formed and the check valve 5 can be reliably disposed. The inner plug 3 and the switching valve 6 may be configured as one member as long as they can be reliably linked, and this is not a limitation.

  In the air suction hole 13 provided in the body portion 2b of the exterior body 2, it is possible to arrange a valve body 13a that opens when the internal space N of the exterior body 2 becomes negative pressure. Thus, intrusion of moisture and foreign matter from the suction hole 13 can be avoided in the storage state of the container.

  At the distribution stage of the interior body 1, there is a concern that dust or the like may enter the inside of the switching valve 6, so that the tip opening portion of the inner plug 3 can be easily removed by pulling with a finger (not shown). It is preferable to attach a virgin type hermetic seal or the like or to fit a hermetic stopper.

  In the present invention, the case where the interior body 1 is applied as a refill container has been described. However, the interior body 1 is a bag-like container and is connected to the mouth 2a of the exterior body 2, and the filling amount of the contents is small. Accordingly, it can be applied to a delamination container in which the volume of the bag-like container is reduced and peeled off from the inner wall of the exterior body 2. In this case, the contents are not exposed to air, so the quality of the contents is long. It is maintained stably for a period.

  A double container capable of maintaining the quality of the contents over a long period of time by avoiding contact with air as much as possible can be provided.

DESCRIPTION OF SYMBOLS 1 Inner body 1a Opening part 2 Exterior part 2a Opening part 2b Body part 2c Bottom part 3 Inner plug 3a Inner cylinder 3b Annular peripheral wall 3c Cylindrical body 4 Outlet cap 4a Base 4b Nozzle 5 Check valve 5a Valve body 5b Fixed edge 6 Switching valve 6a Cylindrical body 6b Bottom wall 7 Opening hole 8 Recess 9 Groove 10 Groove 10 Vertical rib 11 Groove 11a Vertical groove 11b Horizontal groove 12 Projection 13 Air suction hole M Filling space e Recess L Through-passage N Internal space

Claims (3)

An interior body that has a filling space for filling the contents, and that enables the volume of the filling space to be reduced; and the interior body is housed, and the body portion of the interior body is crushed by a squeeze of the body portion. A double container provided with an exterior body for discharging
An inner plug is provided at the mouth of the inner body, and the inner body is suspended by detachably linked to the inner plug, and can be fixedly held at the mouth of the outer body with the attitude of the inner body. A dispensing cap with a nozzle is arranged,
The inner plug is provided with a switching valve that allows the inside of the interior body to communicate with the nozzle of the extraction cap by relatively rotating while maintaining the linkage posture with the extraction cap,
The dispensing cap is provided with a check valve that can be opened only when the body portion of the exterior body is crushed, and that discharges contents to the outside through the nozzle through the opening of the switching valve. A double container.   2. The double container according to claim 1, wherein the body portion of the exterior body has an air suction hole that restores the external shape of the exterior body by introducing air into a gap formed between the exterior body and the exterior body.   The double container according to claim 1 or 2, wherein the interior body is a refill container.

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