JP2012140160A - Duplex container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a duplex container which includes a container body including a cutting unit for cutting a partition wall formed in a sub-container and which is configured in such a manner that when the sub-container is mounted on the container body, the partition wall is cut and the content contained in the sub-container flows into the container body, the duplex container having such a constitution that even if the sub-container is mounted on the container body and the partition wall of the sub-container is cut while the pressure in the sub-container is high, the sub-container can be depressurized upon cutting the partition wall.SOLUTION: A sealed container 3 includes a partition wall 30a defining a part of a storage chamber 30, and a cylindrical hanging portion 312 including a portion at which the partition wall 30a is formed. When the container 3 is opened by inserting a cutting unit 221 into the cylindrical hanging portion 312, the cutting unit 221 having a shape in which an upper side of a cylindrical portion standing parallel with the axial direction is cut to be inclined relative to the axial direction, and by cutting the partition wall 30a while the outer peripheral surface of the cutting unit is brought in close contact with the inner peripheral surface of the cylindrical hanging portion 312, a notch 221c is formed in the upper end surface of the cutting unit 221.

Description

  The present invention relates to a duplex container capable of mixing contents separately stored in each of a plurality of storage chambers formed in the container while effectively avoiding leakage of the contents to the external environment.

  The applicant has provided a cutting portion for cutting the partition formed in the sub-container on the container main body side, and the partition is cut when the sub-container is mounted on the container main body, and the contents stored in the sub-container Previously, a duplex container that can mix a plurality of contents while effectively avoiding leakage of the contents to the external environment by allowing the objects to flow into the container body has been proposed (see Patent Document 1). .

  According to such a duplex container, considering the ease of taking out the contents, the container body is formed of a squeezable flexible material, while the sub-container is designed with a focus on its sealing properties. Therefore, even if it is a case where it uses for the usage condition which heat-processes the content with the subcontainer, it becomes easy not to impair the sealing performance in a subcontainer. As a result, when used in the above-mentioned usage mode, the contents heated together with the sub-container and the contents accommodated in the container body are mixed while maintaining a state isolated from the external environment. Is possible.

International Publication No. 2009/130948 Pamphlet

  By the way, in Patent Document 1, when the partition formed in the sub container is cut by the cutting portion provided on the container body side, a part of the partition is connected to the inner peripheral surface of the trunk of the sub container. By being sandwiched between the inner peripheral surface of the body portion of the sub container and the cutting portion, the cut partition wall does not hinder the contents of the sub container from flowing into the container body. An example has been disclosed.

  However, when the contents of the sub-container are heat-treated, the air in the head space mainly expands and the pressure in the sub-container increases, but the sub-container is attached to the container body while the pressure in the sub-container is high. If the partition is cut, as shown in FIG. 12B, the partition 30a (CT) is pressed against the upper end surface of the cutting portion 221 (CT). If the partition wall 30a (CT) is cut as it is, the partition wall 30a (CT) is separated from the inner peripheral surface of the trunk portion of the sub container 3 (CT) as shown in FIG. It has been found by subsequent studies by the present inventors that the contents of the sub container may be blocked from flowing into the container body.

  12A and 12B are explanatory diagrams showing the prior art. FIG. 12A shows a state before the partition 30a (CT) is cut, and FIG. 12B shows a state where the partition 30a (CT) is cut. FIG. 12C shows a state where the partition wall 30a (CT) cut off from the inner peripheral surface of the sub container 3 (CT) blocks the opening of the cutting part 221 (CT). , Respectively.

  The present invention has been made in view of the above circumstances, and even when the partition wall of the sub-container is cut even when the sub-container is mounted on the container body while the pressure in the sub-container is high, the partition wall is cut. In addition, an object of the present invention is to provide a duplex container in which the above-described problems can be effectively avoided by depressurizing the sub container.

  The duplex container according to the present invention includes at least a container body forming a first storage chamber and a sub-container forming a second storage chamber, and the sub-container defines a part of the second storage chamber. A partition wall and a cylindrical hanging portion including a portion where the partition wall is formed are provided, and the container body is provided with a mounting portion on which the sub-container is mounted, and the mounting portion rises in parallel with the axial direction. When the upper end side of the cylindrical part is cut obliquely with respect to the axial direction, a cutting part for cutting the partition provided in the sub container is provided, and when the sub container is mounted on the mounting part, When the cutting part is inserted into the cylindrical hanging part and the outer peripheral surface of the cutting part is in close contact with the inner peripheral surface of the cylindrical hanging part, the cutting part is cut. Form a notch in the upper end surface of the upper end of the cutting portion There a groove which opens a configuration formed along the outer peripheral surface of the cutting portion.

  According to the present invention, the container can be opened while the pressure in the sealed container is released.

It is a schematic exploded view showing an embodiment of a duplex container according to the present invention. It is an exploded sectional view showing an embodiment of a compound container concerning the present invention. It is explanatory drawing which shows the example which attached the sealing member and the protection member to the container main body shown in FIG. It is explanatory drawing which shows the example where the thin periphery of the 2nd storage chamber partition formed in the subcontainer by the cutting part is cut | disconnected gradually. It is explanatory drawing which shows an example of the cutting part provided in the mounting part of a container main body. It is explanatory drawing which shows a mode that the pressure release in a sub container is made when cut | disconnecting a 2nd storage chamber partition. It is explanatory drawing which shows an example of the cutting part provided in the mounting part of a container main body. It is explanatory drawing which shows 1 process in the usage example of embodiment of the duplex container which concerns on this invention. It is explanatory drawing which shows 1 process in the usage example of embodiment of the duplex container which concerns on this invention. It is explanatory drawing which shows 1 process in the usage example of embodiment of the duplex container which concerns on this invention. It is explanatory drawing which shows the form at the time of discarding the embodiment of the duplex container which concerns on this invention. It is explanatory drawing which shows a prior art.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded view showing an outline of an example of a duplex container according to the present embodiment, and FIG. 2 is a cross-section taken along a plane parallel to the paper surface including the central axis of the duplex container 1 indicated by a dashed line in FIG. FIG.

First, the outline of the duplex container according to the present embodiment will be described. In the example shown in FIGS. 1 and 2, the duplex container 1 includes a container body 2 that forms the first storage chamber 20, and a second storage chamber 30. A sub-container 3 to be formed and an opening and pouring member 4 are provided.
When the duplex container 1 is used, the sub-container 3 is mounted on the mounting portion 22 of the container body 2 and the unsealing / pouring member 4 is mounted on the content outlet 23 of the container body 2 before use. As shown in FIG. 3, the seal member 5 is attached to the mounting portion 22 of the container body 2 and the protective member 6 is attached to the content outlet 23 of the container body 2 during distribution and storage. It has become.
3 is an explanatory view showing a state in which the content S3 is accommodated in the container body 2 shown in FIG. 1 and sealed with the sealing member 5, and the protective member 6 is attached to the content take-out port 23. FIG. .

As described above, the duplex container 1 according to the present embodiment includes five members: a container main body 2, a sub-container 3, an opening and pouring member 4, a sealing member 5, and a protective member 6.
In this embodiment, these members can be manufactured by injection molding or the like using a thermoplastic resin material such as a polyolefin resin such as polypropylene or polyethylene, or an engineering plastic such as polyacetal or polybutylene terephthalate. Each member may be manufactured using the same material, but the material to be used may be appropriately changed depending on the difference in functions required for each member. In addition, each member may be colored for the purpose of shading, or may be a transparent or translucent color so that the contained contents can be visually recognized from the outside.

  Next, the detailed configuration of each of the above members will be described in the order of the sub container 3, the container body 2, and the unsealing and pouring member 4 in this order.

[Sub container]
The secondary container 3 has a second storage chamber in which one end side (upper end side in the drawing) is an opening, and the other end side (lower end side in the drawing) defines a part of the second storage chamber 30. A cylindrical body 31 closed by the partition wall 30a and an opening of the body part 31 are attached to seal the second storage chamber 30 defined by the body 31 and the second storage chamber partition wall 30a. And a lid 32.

  As shown in the figure, the second storage chamber partition wall 30a has a thin peripheral edge on the inner peripheral surface side of the body portion 31. And when the sub-container 3 is mounted on the mounting portion 22 of the container body 2, it is cut along the peripheral edge made thin by the cutting portion 221 provided in the mounting portion 22 of the container body 2 described later, The sub-container 3 in a sealed state is opened.

Further, the other end side of the body portion 31 is a cylindrical hanging portion 312 including a portion where the second storage chamber partition wall 30a is formed. A screw portion is formed on the outer peripheral surface of the cylindrical hanging portion 312, and the screw portion paired therewith is an inner periphery on the base side of a seal tube 222 provided on the mounting portion 22 of the container body 2 described later. Formed on the surface. Thereby, the sub container 3 is mounted on the mounting portion 22 of the container body 2 while rotating by screw fitting.
When the secondary container 3 is opened, the second storage chamber partition wall 30a that is cut is connected to the inner peripheral surface of the cylindrical hanging portion 312 and the container main body in a state where a part of the inner housing surface of the cylindrical hanging portion 312 is connected. It is sandwiched between the cutting part 221 provided in the second mounting part 22 so as not to be detached from the body part 31 and this will be described later.

The lid 32 is detachably attached to the opening of the trunk 31 and seals the second storage chamber 30 formed in the sub-container 3 so that the stored contents do not leak to the outside.
In the illustrated example, the lid body 32 includes an outer cylinder part 321 in which a pair of overhanging parts 325 are formed, and a top plate part 323 connected to the upper end side of the outer cylinder part 321. The top plate part 323 is provided with an inner cylinder part 322 and an annular protrusion 324 so as to hang concentrically. A screw portion is formed on the outer peripheral surface of the body portion 31 on the opening side and the inner peripheral surface of the outer cylindrical portion 321 of the lid body 32, and the lid body 32 is attached to the body portion 31 by screw fitting. ing. At the same time, when the lid body 32 is attached to the body portion 31, the opening end edge side of the body portion 31 is sandwiched between the inner cylindrical portion 322 and the annular protrusion 324, thereby improving the sealing performance.

  Furthermore, in order to improve the sealing performance when the lid body 32 is attached to the body portion 31, the annular protrusions that contact the front end surface of the opening edge of the body portion 31 are placed at corresponding positions on the lid body 32 side. Preferably, it is formed. By doing in this way, even if the contents leak from between the outer peripheral surface of the inner cylindrical portion 322 and the inner peripheral surface of the barrel portion 31, the tip end surface of the edge of the opening portion of the barrel portion 31, and this Further leakage can be prevented by the ring-shaped protrusion abutting against.

  Moreover, the rigidity can be improved by forming the flange part 311 as shown in figure in the outer peripheral surface of the trunk | drum 31 of the subcontainer 3 along the circumferential direction. Further, the outer peripheral surface of the barrel 31 below the flange portion 311 can be knurled as illustrated to prevent slipping when the lid 32 is attached to and detached from the barrel 31 by screw fitting. .

[Container body]
The container body 2 has a barrel portion 21 formed in a cylindrical shape, and a mounting portion 22 to which the sub-container 3 is mounted is provided on one end side (the upper end side in the figure) of the barrel portion 21. Is provided. Further, a content takeout port 23 is provided on the other end side (the lower end side in the drawing) of the body portion 21, and the unsealing and pouring member 4 is attached to the content takeout port 23. It has become.

  The mounting portion 22 has a cutting portion 221 that cuts a second storage chamber partition wall 30a that defines a part of the second storage chamber 30 formed in the sub container 3 when the sub container 3 is mounted, and an outer periphery thereof. A cylindrical sealing cylinder 222 that rises concentrically with the cutting part 221 is provided on the side. A screw portion is formed on the inner peripheral surface of the base side of the seal cylinder 222, and the second container chamber partition wall 30a is cut by attaching the sub container 3 to the attachment portion 22 by screw fitting. As described above.

When the cutting part 221 is inserted into the cylindrical hanging part 312 of the sub-container 3, the cylindrical hanging part 312 is held between the cutting part 221 and the seal cylinder 222, and the outer peripheral surface of the cutting part 221 is the cylindrical hanging part 312. By appropriately adjusting the thickness and other dimensions so as to be in close contact with the inner peripheral surface, the sealing property when the second storage chamber partition wall 30a is cut can be improved.
At this time, before the cutting of the second storage chamber partition wall 30a is started by increasing the diameter of the base side of the cutting part 221, the outer peripheral surface of the cutting part 221 is the inner periphery of the cylindrical hanging part 312. It is preferable to be in close contact with the surface.

The cutting part 221 can have a shape in which the upper end side of the cylindrical part rising parallel to the axial direction is cut obliquely with respect to the axial direction. Thereby, when mounting the sub-container 3 on the mounting portion 22, cutting is started by the tip of the cutting portion 221 biting into a part of the thinned peripheral edge of the second storage chamber partition wall 30a, and further the sub-container As 3 is pushed in, the thin peripheral edge of the second storage chamber partition wall 30a is gradually cut.
The upper end surface of the cutting part 221 is not restricted to the aspect made into the surface cut off linearly as shown in figure. There is a difference in height between the tip of the cutting part 221 and the other surface, and the cutting starts as the tip of the cutting part 221 bites into a part of the thin peripheral edge of the second storage chamber partition wall 30a. If it is, the upper end surface of the cutting part 221 may be a gentle convex surface or a concave surface.
Note that the tip of the cutting part 221 refers to the part of the upper end surface of the cutting part 221 that is at the highest position along the axial direction.

  With the cut second storage chamber partition wall 30a partially connected to the inner peripheral surface of the cylindrical hanging part 312 of the sub container 3, the inner peripheral surface of the cylindrical hanging part 312 of the sub container 3 and the cutting part 221 are connected. As described above, it is separated from the body portion 31 of the sub-container 3 so as not to fall off. The position where the second storage chamber partition wall 30a is formed may be determined in consideration of the size of the cutting portion 221 and the like while the diameter is narrowed and the escape portion is formed. In the illustrated example, in consideration of the relative positional relationship with the cutting part 221 when the sub container 3 is attached to the attachment part 22 of the container body 2, a predetermined length is provided from the tip of the other end of the body part 31. The second storage chamber partition wall 30a is formed at a position where it enters inwardly.

  FIG. 4 is an explanatory diagram showing an example in which the thinned peripheral edge of the second storage chamber partition wall 30a is gradually cut by the cutting portion 221. As shown in FIG. In FIG. 4, a cross-sectional view of the main part showing a state in which the sub container 3 is attached to the attachment part 22 while rotating by screw fitting, and a plan view showing the second storage chamber partition wall 30 a in each state. 4 (b) to 4 (e), the sub container 3 is rotated 45 °, 90 °, 125 ° clockwise (CW) from the state shown in FIG. 4 (a). , Rotated by 175 °. Moreover, in the top view which shows the 2nd storage chamber partition 30a, the position of the front-end | tip of the cutting part 221 is shown with the code | symbol P, and the site | part by which the 2nd storage chamber partition 30a was cut | disconnected is shown with the code | symbol CL.

  As shown in FIG. 4, when the sub container 3 is mounted on the mounting portion 22 while rotating by screw fitting, the sub container 3 is normally pushed into the mounting portion 22 while rotating clockwise (CW). Along with this, the cutting part 221 inserted into the cylindrical hanging part 312 of the sub-container 3 rises relatively in the cylindrical hanging part 312. Then, the tip of the cutting part 221 comes into contact with a part of the thinned peripheral edge of the second storage chamber partition wall 30a (see FIG. 4 (a)), and when the sub container 3 is further rotated, the tip of the cutting part 221 becomes Cutting is started by biting into a part of the thinned peripheral edge of the second storage chamber partition wall 30a (see FIG. 4B), and the thin peripheral edge of the second storage chamber partition wall 30a is gradually cut. (See FIGS. 4C and 4D). Thereafter, when the sub container 3 is rotated almost halfway, the mounting of the sub container 3 is completed, and the cut second storage chamber partition wall 30a is partially connected to the inner peripheral surface of the cylindrical hanging part 312. It is sandwiched between the inner peripheral surface of the cylindrical hanging part 312 and the cutting part 221 formed on the container body 2 side (see FIG. 4E).

When opening the sub container 3 in a sealed state by cutting the second storage chamber partition wall 30a, if the pressure in the sub container 3 is high, the second storage chamber partition wall 30a is pressed against the upper end surface of the cutting part 221. If the second storage chamber partition wall 30a is cut as it is, the second storage chamber partition wall 30a is cut off from the inner peripheral surface of the body portion 31 of the sub container 3, and the opening of the cutting portion 221 is blocked. As described above, the contents in the sub container 3 may be prevented from flowing into the container body 2.
In order to avoid such a problem, in this embodiment, as shown in FIG. 5, a notch 221 c is formed on the upper end surface of the cutting part 221. By forming such a notch 221 c on the upper end surface of the cutting part 221, when the second storage chamber partition wall 30 a is cut and the sub-container 3 is opened, the second storage chamber partition wall 30 a and the cutting unit 221 can be opened. A gap is formed between the upper end surface and the pressure in the sub-container 3 can be released from the gap (see FIG. 6B). Thus, when the second storage chamber partition wall 30a is cut, it is effectively avoided that the second storage chamber partition wall 30a is pressed against the upper end surface of the cutting portion 221, and the pressure release in the sealed sub container 3 is performed. Can be made.

Here, FIG. 5 is an explanatory view showing the cut portion 221 extracted from the example shown in FIG. 2 and the like, FIG. 5A is a perspective view of the cut portion 221, and FIG. It is the front view seen from the same direction, FIG.5 (c) is a side view seen from the right side in FIG.5 (b).
FIG. 6 is an explanatory view showing how the pressure in the sub container 3 is released when the second storage chamber partition wall 30a is cut. FIG. 6 (a) is a view before cutting the partition wall 30a. FIG. 6B shows a state in the middle of cutting the partition wall 30a. FIG. 6C shows a state in which the second storage chamber partition wall 30a is partially separated from the inner peripheral surface of the cylindrical hanging portion 312. FIG. 2 schematically shows a state of being held between the inner peripheral surface of the cylindrical hanging portion 312 and the cutting portion 221 formed on the container body 2 side in a state where the two are connected.

As shown in FIG. 4, when the second storage chamber partition wall 30 a is being cut, the cut portion CL of the second storage chamber partition wall 30 a is rotated as the sub container 3 rotates. Move to the direction side. On the other hand, the part located on the opposite side to the rotation direction of the sub container 3 is gradually cut so as to be pushed up by the upper end surface of the cutting part 221.
For this reason, the cut portion CL of the second storage chamber partition wall 30a seems to extend equally in both the rotation direction of the sub-container 3 and the opposite direction, but at this time, at the tip P of the cutting portion 221 On the other hand, the upper end surface of the cutting part 221 located on the side opposite to the rotation direction of the sub-container 3 cuts the thinned peripheral edge so as to lift the second storage chamber partition wall 30a. The upper end surface of the cutting part 221 positioned on the rotation direction side of the sub container 3 with respect to the tip P of the part 221 only lifts the already cut part of the second storage chamber partition wall 30a.

Therefore, if the upper end surface located on the opposite side to the rotation direction of the sub container 3 with respect to the tip of the cutting part 221 is missing, the resistance when rotating the sub container 3 increases, and the second storage chamber. Although there is a possibility that the cutting of the partition wall 30a may be hindered, even if the upper end surface located on the rotation direction side of the sub container 3 with respect to the tip of the cutting part 221 is missing, the second storage chamber partition wall 30a can be cut. There is little risk of disruption.
For this reason, when forming the notch part 221c in the upper end surface of the cutting part 221, it is preferable to form the notch part 221c in the position which becomes the rotation direction side of the subcontainer 3 with respect to the front-end | tip of the cutting part 221.

Furthermore, from the above viewpoint, in order to effectively release the pressure in the sub container 3 together with the cutting of the second storage chamber partition wall 30a without hindering the cutting of the second storage chamber partition wall 30a, A notch is formed at a position on the front end side of the cutting portion 221 with respect to a position that is half the height difference between the lowermost portion of the upper end surface along the axial direction and the front end of the cutting portion 221. It is preferable to form the part 221c. More specifically, when forming the notch part 221c on the upper end surface of the cutting part 221, it is preferable to determine the notch position as follows.
That is, FIG. 7B shows an orthogonal projection of the upper end surface of the cutting unit 221 having a plane orthogonal to the axial direction as a projection plane. In such an orthogonal projection, the center of the cutting unit 221 starts from the center O of the cutting unit 221. A line segment that passes through the tip is L ₀ , a line segment that passes through the notch position on the tip side of the cut part 221 of the cut part 221 c starting from the center O of the cut part 221 is L _1, and the center O of the cut part 221 is The angle θ ₁ formed by the line segment L ₀ and the line segment L _1, and the line segment, where L ₂ is a line segment that passes through the notch position on the side opposite to the tip of the cut part 221 of the notch part 221c. L ₀ and the angle theta ₂ between the line segment _{L 2,} between the angle theta ₀ between the line segment _{L 1} and the line segment _{L 2,} 5 ° ≦ θ ₀ ≦ 90 °, -5 ° ≦ theta ₁ ≦ 45 °, 5 ° _{≦ θ 2 (= θ 1 +} θ 0) ≦ 90 so ° the relationship is established, the cutout portion 221c of the notch Position is preferred to determine, more preferably 5 ° ≦ theta ₀ ≦ 45 °, 0 ° ≦ θ ₁ ≦ 30 °, 5 ° _{≦ θ 2 (= θ 1 +} θ 0) ≦ 60 ° the relationship established Like that.
The angles θ ₀ , θ ₁ , and θ ₂ are defined as “+” for the rotation direction of the sub-container 3 and “−” for the direction opposite to the rotation direction of the sub-container 3.

Here, FIG. 7A is a schematic diagram of the cutting portion 221 corresponding to the front view of FIG. 5B, and FIG. 7B is a cutting portion having a plane orthogonal to the axial direction as a projection plane. An orthogonal projection of the upper end surface of 221 is shown in correspondence with FIG. In addition, the line segments L ₁ and L ₂ and the cutout position of the cutout portion 221c may not overlap as shown in FIG. 7B. In this case, the angles θ ₁ and θ ₂ are The position through which the line segments L ₁ and L ₂ pass is set so as to be the largest so that the above relationship is established.
Note that when the cut portion 221 is formed so that the upper end side of the cylindrical portion rising parallel to the axial direction is cut obliquely with respect to the axial direction, the inclination angle θ of the upper end surface of the cut portion 221 is usually 7 to 20 °. The height H of the tip of the cutting part 221 with respect to the part at the lowest position along the axial direction of the upper end surface of the cutting part 221 is usually 1.0 to 3.0 mm. it can.

The mounting portion 22 provided in the container body 2 may be formed integrally with the trunk portion 21, but in the illustrated example, the trunk portion 21 and the mounting portion 22 are separated and the mounting portion 22 is attached to the trunk portion 21. Thus, the container body 2 is formed.
As will be described later, when the contents are taken out from the duplex container 1, the container body 2 is squeezed so that an appropriate amount of contents is dropped from the spout 411 of the unsealed pouring member 4 (described later). (See FIG. 10C). For this reason, it is desirable that the container body 2 be formed of a squeezable flexible material, but if the mounting portion 22 is also formed of a flexible material, the sealing performance for the sub-container 3 mounted on the mounting portion 22 is ensured. It can be difficult to do. For this reason, while forming the trunk | drum 21 with the flexible material which can be squeezed, the mounting | wearing part 22 can be formed with a comparatively hard material in consideration of the sealing performance with the subcontainer 3. It is preferable that 21 and the mounting portion 22 are separate bodies.
In addition, since the rigidity of the cutting part 221 formed in the mounting part 22 can be secured if the mounting part 22 is formed of a relatively hard material, the cutting of the second storage chamber partition wall 30a of the sub container 3 by the cutting part 221 is performed. It is also preferable for ensuring.

  In the illustrated example, the mounting portion 22 includes an inner cylinder portion 224 that is in close contact with the inner peripheral surface of the trunk portion 21, and an outer cylinder portion 223 that is folded and hangs down at the distal end side of the inner cylinder portion 224. . As shown in the figure, the mounting portion 22 includes an annular protrusion formed on the distal end side of the inner peripheral surface of the outer cylindrical portion 223 and an annular protrusion formed on the outer peripheral surface of the body portion 21 on the opening side. In combination, it is fixed to the opening of the body 21.

  At this time, the sealing performance between the barrel portion 21 and the mounting portion 22 is improved by bringing the outer peripheral surface of the inner cylinder portion 224 into close contact with the inner peripheral surface of the barrel portion 21. For this purpose, it is preferable to form an annular projection that contacts the tip end surface of the opening edge of the body portion 21 at a corresponding position on the mounting portion 22 side. By doing in this way, even if the contents leak from between the outer peripheral surface of the inner cylindrical portion 224 and the inner peripheral surface of the barrel portion 21, the tip end surface of the edge of the opening portion of the barrel portion 21, and this Further leakage can be prevented by the ring-shaped protrusion abutting against.

  An annular protrusion 225 that protrudes in an annular shape along the circumferential direction is formed on the inner peripheral surface of the mounting portion 22. When the sealing member 5 is mounted on the mounting portion 22, the annular protrusion 225 engages with the outer peripheral edge of the top plate portion 51 of the sealing member 5 and functions as a retaining member for the sealing member 5.

  In the illustrated example, the content outlet 23 is formed so that its inner diameter is smaller than the inner diameter of the body portion 21. This is mainly intended to cause the back pressure to push out the contents to act effectively on the contents when the container body 2 is squeezed to take out the contents. However, by setting the inner diameter of the content takeout port 23 to be smaller than the inner diameter of the body portion 21, the opening when the unsealing and pouring member 4 is attached to the content takeout port 23 is improved.

  In addition, a first annular rib 234 is formed at the boundary with the body portion 21 at the content outlet 23, and a second annular rib 233 is formed at a position separated from the first annular rib 234 by a predetermined distance. ing. Further, between the first annular rib 234 and the second annular rib 233, there are a plurality of protruding ribs 231 extending in the axial direction and connected to the first annular rib 234 and the second annular rib 233. It is formed at equal angular intervals along the direction. Thus, the rigidity of the content outlet 23 is ensured. However, to secure the rigidity of the content outlet 23, it is effective to form the content outlet 23 thick as shown in the figure. is there.

By securing the rigidity of the content take-out port 23, when the content is taken out by squeezing the container body 2, the unloading member 4 attached to the content take-out port 23 is prevented from falling off, It is possible to prevent the sealing performance between the two from being impaired.
That is, since it is desired that the container body 2 (in particular, the body portion 21) is formed of a squeezable flexible material, the contents take-out port 23 is formed integrally with the body portion 21 in the illustrated example. Has a structure that can secure the rigidity of the content takeout port 23 as described above, and prevents the unsealing and pouring member 4 from falling off, and has a sealing property when the unsealing and pouring member 4 is attached to the content takeout port 23. It is preferable not to damage.
As with the mounting portion 22 described above, the content takeout port 23 is separated from the body portion 21 and the content takeout port 23 is formed of a relatively hard material so as to ensure its rigidity. Also good. However, from the viewpoint of reducing the number of parts, the content outlet 23 is preferably formed integrally with the body portion 21 as in the illustrated example.

The content outlet 23 is closed by a first storage chamber partition wall 20a that defines a part of the first storage chamber 20.
As shown in the drawing, the first storage chamber partition wall 20a has a thin peripheral edge in contact with the inner peripheral surface of the content outlet 23, and when the opening and dispensing member 4 is attached to the content outlet 23, the opening will be described later. The cutting part 42 formed in the extraction member 4 is cut along the thinned peripheral edge. At this time, it is preferable that the first storage chamber partition wall 20a is separated from the content take-out port 23 and does not fall off. More specifically, with the cut first storage chamber partition wall 20a partially connected to the inner peripheral surface of the content takeout port 23, the inner peripheral surface of the content takeout port 23 and the unsealing and dispensing member 4 It is preferable to be sandwiched between the cut portion 42 formed on the side (see FIG. 9B and the like described later).

  For this purpose, the outer diameter on the distal end side of the cutting portion 42 formed on the unsealing and pouring member 4 side is narrowed to form a relief portion, and this relief portion and the inner peripheral surface of the content outlet 23 are The side of the opening and pouring member 4 so that the cut first storage chamber partition wall 20a is held in a state where a part of the first storage chamber partition wall 20a is connected to the inner peripheral surface of the content outlet 23. The position where the first storage chamber partition wall 20a is to be formed may be determined in consideration of the dimensions of the cutting portion 42 formed in the above. In the example shown in the drawing, the contents take-out port is taken into consideration in consideration of the relative positional relationship with the cutting portion 42 formed on the side of the unsealing and pouring member 4 when the unsealing and pouring member 4 is attached to the content take-out port 23. A first storage chamber partition wall 20a is formed at a position that extends inward by a predetermined length from the tip of 23.

  The first storage chamber partition wall 20a is cut along the peripheral edge that is thinned by the cutting portion 42, with the peripheral edge in contact with the inner peripheral surface of the content outlet 23 being thinned. This is the same as the second storage chamber partition wall 30a formed in the sub container 3. However, the second storage chamber partition wall 30a formed in the sub-container 3 is formed on the container body 2 side in that a predetermined strength is required even in a thin portion in order to withstand heating in a sealed state. The situation is different from that of the first storage chamber partition wall 20a, and the properties required for the cutting portion 221 formed in the mounting portion 22 and the cutting portion 42 formed in the unsealing and dispensing member 4 are also different. Yes.

  When the container body 2 is used, the sub-container 3 and the unsealing / pouring member 4 are attached during use. As described above, the sealing member 5 can be freely attached to and detached from the attachment portion 22 before use. It is possible to seal the second storage chamber 30 formed in the container body 2 so that the attached contents do not leak to the outside. Furthermore, a protective member 6 can be attached to the content outlet 23 of the container body 2 in order to prevent the first storage chamber partition wall 20a from being damaged.

  In the example shown in FIG. 3, the sealing member 5 is attached to the mounting member 22 by engaging the outer peripheral edge of the annular top plate portion 51 with the annular protrusion 225 formed on the inner peripheral surface of the mounting portion 22. It is detachably attached. Then, by pulling out using the knob piece 54, the engagement with the annular protrusion 225 can be released and it can be detached from the mounting portion 22. Further, the sealing member 5 includes a sealing portion 52 that hangs down from the inner peripheral edge of the top plate portion 51 in a bottomed cylindrical shape and is in close contact with the inner peripheral surface of the cutting portion 221 formed in the mounting portion 22. 22 has a cylindrical hanging part 53 that hangs down from the top plate part 51 so as to be tightly held between the cutting part 221 and the sealing protrusion 222 formed on the sealing part 222, thereby forming the container body 2. The second storage chamber 20 is sealed.

Further, the sealing member 5 is opened not only to seal the container body 2 during distribution and storage before use, but also to prevent the contents remaining in the container from leaking outside during disposal. It can be attached so as to cover the outlet 411 of the extraction member 4.
That is, the inner diameter of the sealing portion 52 of the sealing member 5 is formed corresponding to the outer diameter of the spout 411 of the unsealing and pouring member 4, and the annular protrusion 55 is formed on the inner peripheral surface of the sealing portion 52. Is formed. Thereby, the spout 411 of the unsealing pouring member 4 is inserted into the sealing portion 52 of the sealing member 5, and the annular protrusion 413 formed on the outer peripheral surface of the spout 411 and the inside of the sealing portion 52 By engaging the annular protrusion 55 formed on the peripheral surface, the sealing member 5 can be attached so as to cover the spout 411 of the unsealing pouring member 4 (see FIG. 11 described later). ).

  Further, as shown in the figure, the protective member 6 can be a screw lid having a cylindrical portion 61 that is in close contact with the inner peripheral surface on the distal end side of the content take-out port 23. It may be omitted, or it may be attached to the content outlet 23 by a stopper. In order to improve the sealing performance when the protective member 6 is attached to the content takeout port 23, the tubular portion 61 is formed, and an annular protrusion that abuts on the distal end surface of the content takeout port 23 is formed on the protective member 6. You may make it form in the position corresponding to the side.

[Opening and pouring member]
The unsealing and pouring member 4 includes an outer cylinder part 41 in which a spout 411 is formed, a cutting part 42 attached to the inner side of the outer cylinder part 41, and a filter held between the outer cylinder part 41 and the cutting part 42. 43. The outer peripheral surface of the outer cylinder part 41 is knurled or provided with a pair of overhanging parts 412 as shown in the figure, so that the unsealing and pouring member 4 is screwed into the contents outlet 23 of the container body 2. It can also be used as a non-slip when fitted.
In the illustrated example, the body portion 21 of the container body 2 is also provided with a pair of overhang portions 232.

Moreover, the cutting part 42 can be made into the shape which cut off the front end side of the cylindrical part which stands | starts up in parallel with an axial direction so that it may show in figure, for example.
Here, when the unsealing and dispensing member 4 is attached to the contents outlet 23 of the container body 2, the cutting part 42 cuts the first storage chamber partition wall 20a that closes the contents outlet 23 of the container body 2, At this time, as described above, the outer diameter on the distal end side of the cutting portion 42 is narrowed to form a relief portion.

The filter 43 is for filtering the contents and removing unnecessary solids contained in the contents. As the filter 43, a filter formed using various filter media can be used according to the contents to be filtered, but it is preferable to use a membrane filter capable of precise filtration.
As described above, the annular protrusion 413 is formed on the outer peripheral surface of the spout 411, and the sealing member 5 can be attached so as to cover the spout 411 at the time of disposal. is there.

[Example of use]
Next, a usage example of the above-described double container 1 will be described.

  Here, FIG. 8 is an explanatory diagram showing a process of adding the sample S0 collected from the subject to the reagent S1 accommodated in the sub-container 3 and heating the sample S0. FIG. 9 shows the adsorbent S3 accommodated in the first accommodation chamber 20 by attaching the sub container 3 to the attachment portion 22 of the container body 2 and communicating the first accommodation chamber 20 and the second accommodation chamber 30. It is explanatory drawing which shows the process of adding the content S2 in the 2nd storage chamber 30 heat-processed, stirring and mixing these. FIG. 10 shows a process of attaching the unsealing and pouring member 4 to the content outlet 23 of the container body 2, filtering the slurry-like content S4, and dropping the filtrate (specimen preparation solution). It is explanatory drawing shown. FIG. 11 is an explanatory view showing a form when the disposal member is disposed while the sealing member 5 is attached so as to cover the spout 411 and the content S5 remaining in the container is prevented from leaking to the outside. is there.

In this usage example, the container body 2 contains the adsorbent S <b> 3 in the first storage chamber 20, is sealed with the sealing member 5 attached to the mounting portion 22, and has a protective member at the contents outlet 23. In a state in which 6 is attached (see FIG. 3), it is packaged and distributed and stored in a packaging material made of a non-moisture permeable material such as an aluminum pouch as necessary.
Further, the sub container 3 is a packaging material made of a non-moisture permeable material such as an aluminum pouch in a state where the reagent S1 is accommodated in the second storage chamber 30 (see FIG. 8A). It is packaged and distributed and stored.

  In this use example, first, the lid 32 is removed from the sub-container 3, and the sample S0 collected from the subject in the reagent S1 stored in the second storage chamber 30 and appropriately processed as necessary is obtained. In addition, the lid 32 is resealed (see FIGS. 8B and 8C). Subsequently, the sub-container 3 is carried into a heat treatment apparatus, and the sub-container 3 together with the sub-container 3 is heated to heat the contents S2 in which the sample S0 is added to the reagent S1, thereby performing tuberculosis that may be included in the sample S0. Sterilize or inactivate bacteria.

Next, the sealing member 5 is removed from the container body 2 (see FIG. 9A), and the sub-container 3 for which the predetermined heat treatment has been completed is rotated to the mounting portion 22 of the container body 2 by screw fitting. (See FIG. 9B). Thereby, the cutting part 221 formed in the mounting part 22 cuts the second storage chamber partition wall 30a that defines a part of the second storage chamber 30 formed in the sub container 3, and the second storage chamber 30 and The first storage chamber 30 formed in the container body 2 communicates.
At this time, in the embodiment, the notch 221c is formed on the upper end surface of the cutting part 221, so that the pressure in the sub container 3 can be released (see FIG. 6). Thus, when the second storage chamber partition wall 30a is cut, it is effectively avoided that the second storage chamber partition wall 30a is pressed against the upper end surface of the cutting portion 221, and the pressure release in the sealed sub container 3 is performed. Can be made.

As a result, the content S2 heat-treated in the sub container 3 flows into the first storage chamber 20 without any interruption, and is added to the adsorbent S3 in the container body 2. Then, the contents 2 and the adsorbent S3 are agitated and mixed by shaking or kneading the container body 2 to obtain a slurry-like content S4 (see FIG. 9 (c)). The adsorbent S3 is made to adsorb part or all of the unwanted matter contained in
In addition, it is preferable to design the volume of the trunk | drum 21 of the container main body 2 in consideration of this so that stirring and mixing at this time may be fully performed.

  Thereafter, the container body 2 is turned upside down and the contents S4 is kept away from the contents takeout port 23 (see FIG. 10A), and the opening and pouring member 4 is placed in the contents takeout port 23. The container main body 2 is opened by cutting the first storage chamber partition wall 20a with the cutting portion 42 formed on the opening and dispensing member 4 side (see FIG. 10B). Then, the container body 2 returned to the upright state is squeezed and a back pressure is applied to the contents S4, whereby the filtrate is dropped from the spout 411 while filtering the contents S4 with the filter 43 (FIG. 10 (c)).

Through the above preparation steps, a preparation solution of the sample S0 is obtained, and this preparation solution is subjected to the next reaction step.
On the other hand, the duplex container 1 that has been used is attached with the sealing member 5 so as to cover the spout 411 (see FIG. 10), while preventing the contents S5 remaining in the container from leaking outside. , Dispose of.

  Although the present invention has been described with reference to the preferred embodiment, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. .

  For example, in the above-described embodiment, the example in which the pressure relief in the sub-container 3 is made possible by forming the notch portion 221c on the upper end surface of the cutting portion 221 is shown. If the pressure in the sub container 3 from which the second storage chamber partition wall 30a is cut can be released from the space between the inner peripheral surface of the cylindrical hanging portion 312, a notch 221 c is formed on the upper end surface of the cutting portion 221. Instead, a groove that opens to the upper end surface of the cutting portion 221 may be formed along the outer peripheral surface of the cutting portion 221.

  In the above-described embodiment, the example in which the sub container 3 is mounted on the mounting portion 22 while being rotated by screw fitting is shown. However, the sub container 3 is mounted so as to be pushed into the mounting portion 22 by a stopper. It may be.

  In the above-described embodiment, the example in which the present invention is applied to the duplex container 1 including the container main body 21 that forms the first storage chamber 20 and the sub-container 3 that forms the second storage chamber 30 has been described. It is not limited to this. Although the present invention can be suitably used for the duplex container 1 as shown in the above-described embodiment, it can be applied to other types of opening structure for opening a sealed container. Nor.

  As described above, the present invention can be widely used as a technique for opening a sealed container.

DESCRIPTION OF SYMBOLS 1 Duplex container 2 Container main body 20 1st accommodating chamber 22 Mounting part 221 Cutting | disconnection part 221c Notch 3 Sub container 30 2nd accommodating chamber (accommodating chamber)
30a Second storage compartment partition (partition)
312 Cylindrical hanging part

Claims (5)

At least a container main body forming a first storage chamber and a sub-container forming a second storage chamber;
The sub-container is provided with a partition that defines a part of the second storage chamber, and a cylindrical hanging portion that includes a portion where the partition is formed,
The container body is provided with a mounting portion to which the sub-container is mounted, and the mounting portion has a shape in which an upper end side of a cylindrical portion rising in parallel with the axial direction is cut obliquely with respect to the axial direction. A cutting part for cutting the partition provided in the sub-container is provided,
When the sub container is mounted on the mounting portion,
In the state where the cut portion is inserted into the cylindrical hanging portion and the outer peripheral surface of the cutting portion is in close contact with the inner peripheral surface of the cylindrical hanging portion, the partition wall is cut.
A duplex container, wherein a cutout portion is formed on the upper end surface of the cut portion, or a groove portion opened on the upper end surface of the cut portion is formed along the outer peripheral surface of the cut portion.   The position on the tip side with respect to the position that is the half of the height difference between the portion at the lowest position along the axial direction of the upper end surface of the cutting portion and the tip of the cutting portion, The duplex container according to claim 1, wherein a notch or the groove is formed.   The sub-container is mounted on the mounting portion while being rotated by screw fitting, and the cutout portion or groove portion is formed at a position on the rotation direction side of the sub-container with respect to the tip of the cutting portion. Or the duplex container as described in any one of 2. In forming the notch on the upper end surface of the cut portion,
In orthographic projection of the upper end surface of the cutting part with a plane orthogonal to the axial direction as the projection plane,
A line segment that passes from the center of the cutting part to the tip of the cutting part is defined as L _0, and a line segment that passes through the notch position of the cutting part on the tip side of the cutting part from the center of the cutting part. and L _1, a line segment that passes through the tips and notches located opposite the cutting portion of the notch of the center of the cut portion to the starting point is taken as L _2,
An angle θ ₁ formed by the line segment L ₀ and the line segment L ₁ , an angle θ ₂ formed by the line segment L ₀ and the line segment L ₂ , the line segment L ₁ and the line segment L ₂ , between the angle theta ₀ of 5 ° ≦ θ ₀ ≦ 90 °, -5 ° ≦ θ ₁ ≦ 45 _{°, 5 ≦ θ 2 (= θ} 1 + θ 0) ≦ 90 ° the relationship is established claim The duplex container as described in any one of 1-3.   When the attachment of the sub-container is completed, the partition wall of the second storage chamber is connected to the inner peripheral surface of the cylindrical hanging part and the inner peripheral surface of the cylindrical hanging part and the cutting part. The duplex container as described in any one of Claims 1-4 pinched between.