JP2018203373A - Changeable container - Google Patents

Abstract

To suppress attachment of a content to a discharge tool, and suppress exposure of the content to an outside air when changing the discharge tool.SOLUTION: A changeable container 1A includes: a container body 2 that stores the content and has a storage space 10 that is reduced in volume as the content decreases; and an inner member 4 having a storage cylindrical part 11 that is disposed in a mouth part 2a of the container body 2, and a plug member 31 interrupting the communication between the inside of the storage cylinder part 11 and the inside of the container body 2. By attaching a discharge tool in which the content in the container body 2 is discharged from a discharge hole to the mouth part 2a, a cylinder communicating with the discharge hole in the interior of the discharge tool is stored in the storage cylindrical part 11, and the cylinder releases the interruption of the communication between the inside of the storage cylinder part 11 and the inside of the container body 2 by the plug member 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a replacement container.

  Conventionally, for example, a discharge container described in Patent Document 1 below is known. The discharge container includes a container main body and a discharger. The container body includes an inner container that accommodates the contents and is reduced in volume as the contents are reduced, and an outer container in which the inner container is installed.

JP-A-9-142532

In the conventional discharge container, after use of the contents, it is conceivable to replace the discharge device with another container body and reuse it.
However, when the discharge container is used, since the cylinder of the discharge device is located in the container body, the contents are attached to the outer peripheral surface of the cylinder when the discharge device is replaced. As a result, the contents may adhere to the hand during the replacement operation.
In addition, there is a possibility that the contents in the container main body are exposed to the outside air after the new container main body is opened until the discharger is attached to the mouth of the container main body.

  The present invention has been made in view of the above-described circumstances, and it is an object of the present invention to suppress adhesion of contents to a discharger and to prevent the contents from being exposed to the outside air when changing the discharger. To do.

In order to solve the above problems, the present invention proposes the following means.
The replacement container according to the present invention includes a container body having a storage space in which contents are stored and volume is reduced as the contents are reduced, a storage cylinder disposed in a mouth portion of the container body, and the storage An inner member having a plug member that blocks communication between the inside of the tube portion and the inside of the container main body, and by attaching a discharge device for discharging the contents in the container main body from the discharge hole to the mouth portion, Among the dischargers, a cylinder whose inside communicates with the discharge hole is accommodated in the accommodating cylinder, and the cylinder releases the blocking of the communication between the accommodating cylinder and the container body by the plug member. .

According to this configuration, in the replacement operation of attaching the discharge device to the mouth portion of the container body, the cylinder of the discharge device is caused to enter the mouth portion, and the cylinder is accommodated in the accommodation cylinder portion. Release the disconnection from the inside with the cylinder and attach the discharger to the mouth. When the discharger operates, the discharger sucks up the contents in the container body and discharges it from the discharge hole.
Thus, when the dispenser is attached to the mouth of the container body, the cylinder is accommodated in the accommodating cylinder. Therefore, it is possible to suppress the contents from adhering to the cylinder.
In addition, the plug member blocks communication between the accommodating cylinder and the container body until the dispenser is attached to the mouth of the container body in the process of changing the dispenser. Therefore, exposure of the contents to the outside air can be suppressed.

  The plug member may be connected via a weakened portion that can be broken.

  In this case, the plug member is connected via a weakened portion that can be broken. Therefore, when attaching the dispenser to the mouth portion of the container body, the weakened portion can be broken by simply pushing the plug member with the cylinder, and the disconnection of communication by the plug member can be easily released. Thereby, the operativity of replacement operation can be improved.

  An engagement protrusion that engages with the cylinder may be formed on an upper surface of the plug member facing the mouth side of the container body.

  In this case, an engagement protrusion is formed on the upper surface of the plug member. Therefore, when attaching the discharger to the mouth of the container body, the cylinder can be first brought into contact with the engaging protrusion of the plug member. This makes it possible to break the weakened portion starting from a portion located in the vicinity of the engaging protrusion in the weakened portion, and the operability of the operation of breaking the weakened portion can be improved.

  The inner peripheral surface of the inner member is in contact with the outer peripheral surface of the cylinder, thereby blocking communication between the inside of the container main body and the outside through the space between the inner peripheral surface of the inner member and the outer peripheral surface of the cylinder. A sealing portion may be provided.

  In this case, a seal portion is provided on the inner peripheral surface of the inner member. Therefore, before the cylinder releases the blocking of the communication by the plug member, the seal portion abuts on the outer peripheral surface of the cylinder, so that even after the blocking of the communication by the plug member is released, the inner peripheral surface of the inner member and the cylinder Communication between the inside of the container main body and the outside through the outer peripheral surface can be kept blocked by the seal portion. Thereby, it can suppress reliably that a content is exposed to external air.

  ADVANTAGE OF THE INVENTION According to this invention, adhesion of the content to a discharger can be suppressed and it can suppress that a content is exposed to external air when changing a discharger.

It is sectional drawing in alignment with the container axial direction of the replacement container which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the state by which the discharge device was attached to the exchange container shown in FIG. It is an expanded sectional view of the A section in FIG. It is a figure which shows the container main body of the replacement container shown in FIG. FIG. 2 is a half vertical cross-sectional view showing a state where a cap is removed in the replacement container shown in FIG. 1. It is a figure which shows an assembly | attachment body. It is sectional drawing which follows the container axial direction of the replacement container which concerns on the 2nd Embodiment of this invention. It is sectional drawing which shows the state by which the discharge device was attached to the exchange container shown in FIG. It is an expanded sectional view of the B section in FIG. It is sectional drawing which follows the container axial direction of the replacement container which concerns on the modification of the 1st Embodiment of this invention. It is sectional drawing which follows the container axial direction of the replacement container which concerns on the modification of the 2nd Embodiment of this invention. It is sectional drawing which follows the container axial direction of the replacement container which concerns on the 3rd Embodiment of this invention. It is sectional drawing which shows the state by which the discharge device was attached to the exchange container shown in FIG. It is sectional drawing which shows the state which has attached the discharge device to the replacement container shown in FIG. It is an enlarged view of the principal part in sectional drawing shown in FIG.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the replacement container 1 </ b> A of the present embodiment has a bottomed cylindrical container main body 2 in which contents are accommodated, and a top cylindrical shape that is detachably attached to the mouth 2 a of the container main body 2. The cap 3 and the cylindrical inner member 4 disposed in the mouth portion 2a are provided.

  Here, the container main body 2, the cap 3 and the inner member 4 are disposed in a state where their respective central axes are located on a common axis. Below, this common axis | shaft is called the container axis | shaft O, the cap 3 side along the container axis | shaft O is upper, and the bottom 2b side of the container main body 2 is called the downward direction. In addition, a direction orthogonal to the container axis O in a plan view viewed from the container axis O direction is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

  The container body 2 includes a flexible inner container (inner layer) 6 that accommodates the contents and undergoes volumetric deformation (squeezing deformation) as the contents decrease, and an outer container (outer layer) in which the inner container 6 is housed. 7). The inner container 6 and the outer container 7 are disposed in a state in which their respective central axes are located on a common axis (container axis O). The container body 2 is formed in a bottomed cylindrical shape in which a mouth portion 2a, a body portion 2c, and a bottom portion 2b are connected in order from the upper side. The trunk | drum 2c is formed in the cross-sectional view circular shape, for example.

The container body 2 is formed by blow molding and is a delamination type container (delami bottle) in which the inner container 6 is detachably laminated on the inner surface of the outer container 7. The material of the inner container 6 and the outer container 7 is a resin material, and may be the same material or different materials as long as they are detachable combinations. Examples of the resin material include PET (polyethylene terephthalate), PP (polypropylene), PE (polyethylene), nylon (polyamide), EVOH (ethylene-vinyl alcohol copolymer), and the like. Out of these resin materials, the outer container 7 and the inner container 6 are formed in a combination that allows separation (no compatibility).
The inner container 6 of the container main body 2 may have a structure capable of volume reduction, and may have a double container configuration that is not stacked on the outer container 7. Inside the inner container 6 is an accommodation space 10 that accommodates the contents and reduces the volume as the contents decrease.

  As shown in FIG. 3, the mouth portion 2 a of the container body 2 is configured such that the mouth portion of the inner container 6 and the mouth portion of the outer container 7 are laminated. At the upper end portion of the mouth portion of the inner container 6, an annular folded portion protruding outward in the radial direction is formed. The folded portion closes the opening end of the mouth of the outer container 7 from above, and the mouth of the outer container 7 is closed by the inner container 6. An intake hole 7 a for sucking outside air is formed between the outer container 7 and the inner container 6 at the mouth of the outer container 7.

  The mouth portion 2a of the container body 2 includes a small diameter portion 2d located at the upper end, and a large diameter portion 2e extending downward from the lower end of the small diameter portion 2d and having a larger diameter than the small diameter portion 2d. The large-diameter portion 2e is formed with a male screw portion 2h into which a female screw portion 3d formed on the peripheral wall portion of the cap 3 is detachably screwed. A plurality of anti-rotation ribs 2f projecting outward in the radial direction and extending in the container axis O direction are formed at the lower end of the small diameter portion 2d at intervals in the circumferential direction.

  The inner member 4 is disposed in the mouth portion 2a of the container body 2 as shown in FIG. The inner member 4 is connected to an accommodation cylinder portion 11 in which a cylinder 72 (see FIG. 2) of the discharger 5 described later is accommodated, and a lower end portion of the accommodation cylinder portion 11, and the inside of the container body 2 and the accommodation cylinder portion 11. A communicating tube portion 12 having a two-stage tubular shape communicating with each other, an inner fitting tube 13 fitted and accommodated inside the communicating tube portion 12, and a suction tube portion fitted in the communicating tube portion 12. 14.

The accommodating cylinder portion 11 has a bottomed cylindrical shape extending along the container axis O direction. Specifically, the accommodating cylinder part 11 includes a base cylinder part 21 and an annular bottom ring part 22 protruding from the lower end edge of the base cylinder part 21 toward the inside in the radial direction.
As shown in FIGS. 1, 5, and 6, a cylindrical seal cylinder 3 b extending downward is formed on the top wall of the cap 3, and the seal cylinder 3 b serves as a base cylinder 21 ( It is fitted in the upper end portion of the housing cylinder 11.

  As shown in FIG. 1, the upper end part of the base cylinder part 21 is inserted in the opening part 2a. The lower end part of the base cylinder part 21 protrudes below the opening part 2a in the container main body 2, and is located in the trunk | drum 2c. An outer flange portion 23 projects from the upper end portion of the base tube portion 21 toward the outer side in the radial direction. The outer flange portion 23 is disposed on the upper end opening edge of the mouth portion 2a of the container body 2 via an annular packing 62B. The packing 62B is held in a state of being sandwiched in the container axis O direction by the upper end opening edge of the mouth portion 2a and the outer flange portion 23. On the outer peripheral edge of the outer flange portion 23, a mounted cylinder portion 24 to which the mouth portion 2 a is attached is protruded downward.

  As shown in FIG. 5, the inner peripheral surface of the mounted cylinder portion 24 and the outer peripheral surface of the mouth portion 2a are engaged with each other in the container axis O direction, and the inner member 4 is detached from the mouth portion 2a. Inner undercut portions 24b and 2g to be suppressed are formed. An inner undercut portion 2g of the mouth portion 2a is formed in the small diameter portion 2d. The inner undercut portion 2g is formed at the upper end portion of the small diameter portion 2d and bulges outward in the radial direction. The inner undercut portion 24b of the mounted cylinder portion 24 is formed at an intermediate portion of the mounted cylinder portion 24 in the container axis O direction and protrudes toward the inner side in the radial direction.

  Outer undercut portions 24c and 3c that engage with each other in the container axis O direction on the outer peripheral surface of the mounted cylinder portion 24 and the inner peripheral surface of the cap 3 to prevent the inner member 4 from being detached from the cap 3. Is formed. The outer undercut portion 3 c of the cap 3 is formed in a portion located above the female screw portion 3 d in the intermediate portion of the peripheral wall portion of the cap 3 in the container axis O direction. The outer undercut portion 3c is a circumferential groove extending continuously over the entire circumference. The outer undercut portion 24 c of the mounted cylinder portion 24 is formed at the lower end of the mounted cylinder portion 24. The outer undercut portion 24c protrudes outward in the radial direction, is formed in a rib shape extending in the circumferential direction, and a plurality of outer undercut portions 24c are formed at intervals in the circumferential direction.

  The inner undercut portions 24b and 2g have a larger engagement force in the container axis O direction than the outer undercut portions 24c and 3c. That is, when the cap 3 is removed from the mouth 2a, the inner member 4 can be kept attached to the mouth 2a without being removed from the mouth 2a.

  As shown in FIG. 3, an engaging portion 24 a is formed at the lower end portion of the inner peripheral surface of the mounted cylinder portion 24 so that the aforementioned detent rib 2 f engages in the circumferential direction. The rotation prevention rib 2f of the container main body 2 and the engagement portion 24a of the storage cylinder portion 11 engage with each other in the circumferential direction, so that the relative rotation of the container main body 2 and the storage cylinder portion 11 around the container axis O is performed. Is regulated.

  As shown in FIG. 5, a notch hole 50 that opens downward is formed in the mounted cylinder portion 24. When discarding the replacement container 1A, for example, a plate material such as a coin is inserted into the notch hole 50, and the housing cylinder portion 11 is pushed up with respect to the mouth portion 2a of the container body 2 by this plate material, and the inner undercut portions 24b and 2g. By releasing the engagement in the container axis O direction, the inner member 4 (housing cylinder portion 11) can be easily removed from the mouth portion 2a.

As shown in FIG. 1, the communication cylinder portion 12 extends downward from the inner peripheral edge of the bottom ring portion 22, and is a two-stage cylinder by a large diameter portion 26 located at the upper portion and a small diameter portion 27 located at the lower portion. It has a shape. The upper end portion of the suction cylinder portion 14 is fitted inside the small diameter portion 27. The housing cylinder part 11 and the communication cylinder part 12 form a main body cylinder part 18 of the inner member 4.
The internal fitting cylinder 13 includes a cylinder body 15 fitted in the large diameter portion 26 of the communication cylinder 12, and a projecting flange portion 16 projecting radially outward from the upper end of the cylinder body 15. And have. The protruding flange portion 16 is disposed on the bottom ring portion 22 of the housing cylinder portion 11.

  A disc-shaped plug member 31 that blocks communication in the container axis O direction inside the inner fitting tube 13 is connected to the inner peripheral surface of the tube portion main body 15 via a weakening portion 32 that can be broken. The weakening portion 32 is thinner than the plug member 31 and surrounds the outer peripheral edge of the plug member 31 over the entire circumference. As a result, the plug member 31 blocks communication between the inside of the container body 2 and the inside of the housing cylinder portion 11 through the internal fitting cylinder 13 and the communication cylinder portion 12 when not in use at the distribution stage or the like.

  The plug member 31 may be connected to the communication cylinder portion 12 via the weakening portion 32. In this case, the cylinder body 15 may be omitted. The weakening part 32 may connect the main body cylinder part 18 and the plug member 31 directly, and indirectly connects the main body cylinder part 18 and the plug member 31 via the internal fitting cylinder 13 like this embodiment, for example. May be linked.

  The plug member 31 has a curved surface shape protruding upward. An engagement protrusion 33 that protrudes upward is formed on a part of the plug member 31 in the circumferential direction. The engagement protrusion 33 engages with a cylinder 72 described later. The engagement protrusion 33 has a T shape in a plan view as viewed from the container axis O direction, and extends along the radial direction, and then extends from the outer end in the radial direction toward both sides in the circumferential direction. Has been. The plug member 31 may have a configuration in which a part in the circumferential direction is directly connected to the inner peripheral surface of the cylindrical part main body 15 and the other part is connected to the cylindrical part main body 15 via the weakened part 32. I do not care.

The upper end part of the suction cylinder part 14 is fitted in the small diameter part 27 of the inner fitting cylinder 13. The lower end portion of the suction cylinder portion 14 is located in the trunk portion 2 c of the container body 2.
In the present embodiment, a seal portion 17 is provided on the inner peripheral surface of the inner member 4. In the illustrated example, the seal portion 17 is provided on the inner peripheral surface of the inner fitting cylinder 13. The seal portion 17 is an annular protrusion that protrudes inward in the radial direction and extends over the entire circumference in the circumferential direction. The seal portion 17 is in contact with an outer peripheral surface of a cylinder 72 described later, thereby allowing the inside and outside of the container main body 2 to pass between the inner peripheral surface of the inner member 4 (accommodating cylinder portion 11) and the outer peripheral surface of the cylinder 72. Block communication.

  As shown in FIG. 6, the replacement container 1 </ b> A is formed by first engaging the outer undercut portions 24 c and 3 c with each other in the container axis O direction, and assembling the inner member 4 inside the cap 3. The assembled body 60 is formed by attaching the inner undercut portions 24b and 2g to the container body 2 filled with the contents while engaging with each other in the container axis O direction.

Next, the dispenser 5 attached to the replacement container 1A described above will be described.
As shown in FIG. 2, the discharger 5 includes a pump unit 51 that discharges the contents accommodated in the container body 2, and a mounting cap 52 that attaches the pump unit 51 to the container body 2.
The mounting cap 52 includes a mounting cylinder 53 and a guide cylinder 54 that is provided above the mounting cylinder 53 and guides the movement of the pressing head 71, which will be described later, along the container axis O direction.

The mounting cylinder 53 has a larger diameter than the guide cylinder 54 and is detachably screwed to the mouth portion 2a of the container body 2. At the lower end portion of the guide tube 54, a flange-like pump mounting portion 55 that protrudes inward in the radial direction is provided, and the pump portion 51 is fixed to the pump mounting portion 55. The mounting cylinder 53 is not limited to screwing as long as the mounting cylinder 53 is detachable from the mouth portion 2a.
On the outer surface of the guide tube 54, a top-like cylindrical pump cap 51A is detachably fitted.

  The pump unit 51 includes a cylinder 72 attached to the attachment cap 52, a stem 73 whose lower part is inserted into the cylinder 72, and is movably moved downward in an upward biased state with respect to the cylinder 72. A piston (not shown) that is linked to the vertical movement of 73 and is slidably fitted in the cylinder 72, and a piston presser (not shown) that is fitted in the cylinder 72 and supports the outer peripheral portion of the piston from above. And a pressing head 71 which is attached to the upper end of the stem 73 and has a discharge hole 71a for the contents.

  The inside of the cylinder 72 communicates with the discharge hole 71 a through the inside of the stem 73 and the inside of the pressing head 71. The cylinder 72 has a multi-stage cylindrical shape with a smaller diameter as it is positioned below. The upper cylinder portion 76 of the cylinder 72 can be accommodated in the accommodating cylinder portion 11 of the inner member 4, and the lower cylinder portion 77 of the cylinder 72 can be fitted in the inner fitting cylinder 13. Of the cylinder 72, an annular connecting plate 78 that connects the lower end edge of the upper cylinder part 76 and the upper end edge of the lower cylinder part 77 is formed in the state where the discharge cylinder 5 is attached to the replacement container 1A. It faces the bottom ring portion 22 (projecting flange portion 16) in the container axis O direction.

Next, a replacement operation for attaching the discharger 5 to the replacement container 1A will be described.
First, as shown in FIG. 5, the cap 3 of the replacement container 1 </ b> A is detached from the mouth 2 a of the container body 2. At this time, as shown in FIG. 3, the rotation-preventing rib 2 f of the container main body 2 and the engaging portion 24 a of the accommodating cylinder portion 11 are engaged with each other in the circumferential direction. However, it does not rotate around the container axis O. Further, since the inner undercut portions 24b and 2g have a larger engaging force in the container axis O direction than the outer undercut portions 24c and 3c, when the cap 3 is detached from the mouth portion 2a, the inner undercut portions 24b and 2g. The engagement of the outer undercut portions 24c and 3c is released while maintaining the engagement of 24b and 2g. As a result, the inner member 4 remains in the mouth 2a, and only the cap 3 is removed from the mouth 2a.

  Next, as shown in FIG. 2, the discharger 5 is caused to enter the accommodating cylinder portion 11 from the cylinder 72 side, and the mounting cylinder 53 of the mounting cap 52 is screwed to the mouth portion 2 a of the container body 2. Then, in the cylinder 72, the lower cylinder part 77 is fitted into the inner fitting cylinder 13 of the inner member 4, and the upper cylinder part 76 is accommodated in the accommodating cylinder part 11. Further, in the process of relatively rotating the mounting cap 52 and the replacement container 1A in the tightening direction around the container axis O and screwing the mounting cap 52 into the mouth portion 2a, the discharger 5 moves relative to the replacement container 1A along with the relative rotation. Move down.

  As a result, the lower end edge of the lower cylindrical portion 77 faces the engaging projection 33 of the plug member 31 downward while the seal portion 17 of the inner member 4 contacts the outer peripheral surface of the lower cylindrical portion 77 of the cylinder 72. And weakened part 32 is broken. Then, communication between the inside and outside of the container main body 2 that passes between the inner peripheral surface of the accommodating cylinder portion 11 and the outer peripheral surface of the cylinder 72 is blocked by the seal portion 17, and at least one in the circumferential direction of the plug member 31. The part is detached from the inner fitting cylinder 13, the inner fitting cylinder 13 and the communication cylinder part 12 are opened, and the inside of the container body 2 and the inside of the cylinder 72 communicate with each other through the communication cylinder part 12. At this time, the whole plug member 31 may be detached from the inner fitting cylinder 13, or a part of the plug member 31 may be connected to the inner fitting cylinder 13.

In the present embodiment, since the engaging protrusion 33 is formed on the plug member 31, the pressing force that acts on the plug member 31 from the lower cylinder portion 77 acts locally via the engaging protrusion 33. Thereby, the part located in the periphery of the engaging protrusion 33 among the weakened parts 32 becomes a starting point of a fracture | rupture, and the weakened part 32 can be fractured | smoothed smoothly.
Further, in the process of screwing the mounting cap 52 into the mouth portion 2a, the rotation-preventing rib 2f of the container body 2 and the engaging portion 24a of the housing cylinder portion 11 are engaged with each other in the circumferential direction, whereby the inner member Co-rotation around the container axis O with respect to the container body 2 of 4 is prevented.

  The replacement operation of the discharger 5 to the replacement container 1A is thus completed. As described above, in the present embodiment, the discharger 5 is attached to the mouth 2a of the container main body 2 from which the cap 3 has been detached, so that the cylinder 72 of the discharger 5 is placed in the accommodating cylinder 11 (main body cylinder 18). While being accommodated, the cylinder 72 releases the blocking of the communication between the inside of the housing cylinder portion 11 and the inside of the container body 2 by the plug member 31. Further, when the discharger 5 is attached to the mouth 2a, the discharger 5 forms a seal between the container body 2 or the inner member 4, and the container body passes between the discharger 5 and the inner member 4. Communication between the inside and outside is cut off. Thereby, the discharge container 8 provided with the container main body 2, the inner member 4, and the discharge device 5 is formed.

  Thereafter, when the contents are discharged through the discharger 5, when the pressing head 71 is pressed, the stem 73 and a piston (not shown) move downward together with the pressing head 71. Then, a piston (not shown) slides downward on the inner peripheral surface of the cylinder 72 (upper cylinder portion 76), so that the inside of the cylinder 72 is pressurized. As a result, the contents in the cylinder 72 flow through the stem 73 and the pressing head 71 and are discharged to the outside through the discharge holes 71 a of the pressing head 71.

  When the pressing of the pressing head 71 is released after the contents are discharged, the stem 73, the piston (not shown) and the pressing head 71 are restored and moved upward with respect to the cylinder 72. Then, the content in the container main body 2 flows into the cylinder 72 through the suction cylinder 14, whereby the pressure in the container main body 2 is reduced. At this time, the outside air is sucked between the inner container 6 and the outer container 7 through the intake hole 7a. Thereby, for example, after the inner container 6 and the outer container 7 are integrally deformed and deformed, the outer container 7 is restored and deformed while the inner container 6 is deformed and deformed, or the outer container 7 is deformed and deformed. Therefore, the inner container 6 can be reduced in volume and deformed, and a smooth discharge operation by the discharger 5 can be performed.

As described above, according to the replacement container 1 </ b> A according to the present embodiment, the cylinder 72 is accommodated in the accommodating cylinder portion 11 when the discharger 5 is attached to the mouth portion 2 a of the container body 2. Therefore, it is possible to suppress the contents from adhering to the cylinder 72.
Further, in the process of changing the discharger 5, the discharger 5 is attached to the mouth 2 a of the container main body 2, and the seal part 17 passes between the discharger 5 and the inner member 4 inside and outside the container main body 2. Until the communication with the plug is cut off, the plug member 31 cuts off the communication between the inside of the housing cylinder portion 11 and the inside of the container body 2. Therefore, even after the cap 3 is removed, the contents can be prevented from being exposed to the outside air.

  Moreover, the plug member 31 is connected through a weakened portion 32 that can be broken. Therefore, when attaching the discharger 5 to the mouth 2a of the container body 2, the weakened portion 32 can be broken by simply pushing the plug member 31 by the cylinder 72, and the blocking of communication by the plug member 31 can be easily released. it can. Thereby, the operativity of replacement operation can be improved.

  An engaging projection 33 is formed on the upper surface of the plug member 31. Therefore, the cylinder 72 can be first brought into contact with the engaging projection 33 of the plug member 31 when the discharger 5 is attached to the mouth 2a of the container body 2. Thereby, it becomes possible to break the weakening part 32 from the part located in the periphery of the engagement protrusion 33 among the weakening parts 32, and the operativity of the operation which fractures the weakening part 32 can be improved. .

  A seal portion 17 is provided on the inner peripheral surface of the inner member 4. Therefore, before the cylinder 72 releases the communication blockage by the plug member 31, the seal portion 17 abuts the outer peripheral surface of the cylinder 72, so that after the communication blockage by the plug member 31 is released, the inner member 4 Communication between the inside and outside of the container body 2 that passes between the inner peripheral surface and the outer peripheral surface of the cylinder 72 can be kept blocked by the seal portion 17. Thereby, it can suppress reliably that a content is exposed to external air.

  In addition, inner undercut portions 24b and 2g having greater engagement force in the container axis O direction than the outer undercut portions 24c and 3c are formed on the inner peripheral surface of the mounted cylinder portion 24 and the outer peripheral surface of the mouth portion 2a, respectively. ing. Therefore, when the cap 3 is removed from the mouth 2a of the container body 2, it is possible to release the engagement of the outer undercut portions 24c and 3c while maintaining the engagement of the inner undercut portions 24b and 2g. Thus, the inner member 4 can remain in the mouth portion 2a, and only the cap 3 can be removed from the mouth portion 2a.

(Second Embodiment)
Next, a replacement container 1B according to a second embodiment of the present invention will be described with reference to FIGS.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

In the replacement container 1B, an intake hole 7a is provided in the bottom 2b instead of the mouth 2a. The intake hole 7a is formed in a cut-off portion (pinch-off portion) that is a portion that is cut by the mold in the bottom portion 2b when the container body 2 is blow-molded. In the cut-out portion, the inner container 6 is exposed from the outer container 7 and the joint between the inner container 6 and the outer container 7 is weak. As a result, when a negative pressure is generated between the inner container 6 and the outer container 7, the inner container 6 and the outer container 7 are peeled off at the cut-off portion to form the intake hole 7a. The intake hole 7a is, for example, a slit extending linearly when viewed from the container axis O direction, and traverses the container axis O in the radial direction.
Further, in the present embodiment, the seal portion 17 is provided at the upper end portion of the accommodation tube portion 11 (base tube portion 21) instead of being provided on the inner peripheral surface of the internal fitting tube 13. The seal portion 17 is in close contact with the outer peripheral surface of the upper cylindrical portion 76 of the cylinder 72 over the entire circumference.

(Modification of the first embodiment and the second embodiment)
In the replacement container 1A of the first embodiment and the replacement container 1B of the second embodiment, the lower end portion of the suction cylinder portion 14 is located in the trunk portion 2c of the container body 2 and is larger than the bottom portion 2b. Although separated, the present invention is not limited to this. For example, the lower end portion of the suction cylinder portion 14 as in the replacement container 1C according to the modification of the first embodiment shown in FIG. 10 and the replacement container 1D according to the modification of the second embodiment shown in FIG. However, it is also possible to employ a configuration in which the bottom portion 2b of the container body 2 approaches or abuts from above.
As yet another modification, a configuration without the suction cylinder portion 14 may be employed. Further, instead of the suction cylinder portion 14, a configuration in which an adapter having a radial shape in a top view (for example, a cross shape in a top view) is fitted in the communication cylinder portion 12 may be employed.

(Third embodiment)
Next, a replacement container 1E according to a third embodiment of the present invention will be described with reference to FIGS.
In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

  In the replacement container 1E according to the present embodiment, as shown in FIG. 12, the container body 2 is not a so-called double container. The container body 2 includes a bottom portion 2b and a body cylinder 2i extending upward from the bottom portion 2b, instead of including the inner container 6 and the outer container 7. The main body cylinder 2i forms a body part 2c and a mouth part 2a. The mouth portion 2a is formed by the upper end portion of the main body cylinder 2i. The main body cylinder 2i is provided with the above-described storage space 10 for storing contents and reducing the volume as the contents decrease.

  In the present embodiment, the inner member 4 does not include the suction cylinder portion 14. A recessed portion 22 a is formed in the inner peripheral edge portion of the bottom ring portion 22 of the housing cylinder portion 11. The recess 22a is recessed downward. The bottom surface of the recessed portion 22a is located below the bottom ring portion 22 that is located on the radially outer side of the recessed portion 22a. Moreover, the communication cylinder part 12 is not a two-stage cylinder shape, but is formed in the cylinder shape of the same diameter over the full length along the container-axis O direction. A plurality of vertical groove portions 12 a arranged at intervals in the circumferential direction are formed on the outer peripheral surface of the communication tube portion 12. An annular bottom flange 12b that protrudes inward in the radial direction is provided at the lower end of the communication tube portion 12.

  The internal fitting cylinder 13 is disposed in the recess 22 a and the communication cylinder 12. The protruding flange portion 16 of the inner fitting cylinder 13 is disposed on the bottom surface of the recess portion 22a. The seal portion 17 is provided on the inner peripheral surface of the tube portion main body 15 of the internally fitted tube 13. The seal portion 17 is disposed above the plug member 31 in the internal fitting cylinder 13. A plurality of (two in the illustrated example) seal portions 17 are arranged at intervals in the container axis O direction.

  Here, in the present embodiment, the replacement container 1E further includes an inner tray 9 that is slidably fitted in the container body 2 in the container axis O direction. The replacement container 1 </ b> E is applied to a middle dish raising type discharge container 8 that discharges contents as the middle dish 9 rises in the container body 2. In addition, the content accommodated in the accommodation space 10 is not specifically limited. The storage space 10 stores, for example, high-viscosity contents (for example, cream-like contents).

  The accommodation space 10 is formed between the inner member 4 and the inner tray 9 in the container main body 2. An air introduction hole 2j is formed in the bottom 2b of the container body 2. The air introduction hole 2j introduces outside air into the air chamber 2k formed between the inner tray 9 and the bottom 2b in the container body 2. The air chamber 2k expands as the accommodation space 10 is reduced in volume.

  The inner tray 9 includes an annular portion 9a and a tubular portion 9b. The annular portion 9a is fitted in the main body cylinder 2i. The cylindrical portion 9b is disposed on the container axis O. The cylindrical portion 9b is recessed downward from the inner peripheral edge of the annular portion 9a. In the cylindrical part 9b, the communication cylinder part 12 is inserted so as to be movable in the container axis O direction.

  The accommodation space 10 includes an outer space 10a and an inner space 10b. The outer space 10a is formed between the bottom ring portion 22 and the annular portion 9a. The inner space 10b is formed between the bottom flange 12b of the communication cylinder part 12 and the bottom part of the cylindrical part 9b. The outer space 10a and the inner space 10b communicate with each other between the outer peripheral surface of the communication tube portion 12 and the inner peripheral surface of the tubular portion 9b or through the longitudinal groove portion 12a.

Next, the discharger 5E attached to the replacement container 1E mentioned above is demonstrated.
As shown in FIG. 13, the discharger 5E includes the pump unit 51, the pump cap 51A, and the mounting cap 52 described above.
The mounting cap 52 further includes a connecting portion 56 in addition to the mounting cylinder 53, the guide cylinder 54, and the pump mounting section 55 described above. The guide tube 54 is disposed inside the mounting tube 53 in the radial direction. The upper ends of the mounting cylinder 53 and the guide cylinder 54 are connected via a connecting portion 56. The pump mounting part 55 protrudes downward from the connecting part 56. The upper end portion of the cylinder 72 is clamped (fitted) in the radial direction to the pump mounting portion 55.

51 A of pump caps connect the cap main body 57 with the top cylinder shape with which the guide cylinder 54 was mounted | worn, the top cap-shaped over cap 58 which obstruct | occludes the cap main body 57 so that opening and closing is possible, and the cap main body 57 and the over cap 58. And a hinge portion 59.
The cap body 57 is provided with an operation hole 57a. A pressing head 71 is disposed in the operation hole 57a. The pressing head 71 protrudes upward from the operation hole 57 a, and the user can press (operate) the pressing head 71 from above the cap body 57. Note that a puff 58 a (applicator) is disposed above the pressing head 71 in the overcap 58. The puff 58a wipes the contents discharged on the pressing head 71.

The pump unit 51 includes the cylinder 72, the stem 73, the piston 79, the piston pressing member 80, and the pressing head 71 described above.
The cylinder 72 includes a cylinder body 81 and a mounting member 82. The cylinder body 81 is formed in a two-stage cylinder shape. The cylinder body 81 includes a sliding cylinder part 83, a suction cylinder part 84, and a step part 85. The sliding cylinder part 83 is located above the suction cylinder part 84 and has a large diameter. The step portion 85 connects the lower end portion of the sliding cylinder portion 83 and the upper end portion of the suction cylinder portion 84. The suction cylinder portion 84 forms a lower cylinder portion 77 in the discharge device 5 according to the first embodiment and the second embodiment.

The mounting member 82 mounts the cylinder body 81 on the mounting cap 52. The mounting member 82 includes a flange portion 86 that protrudes radially outward from the cylinder body 81 and a rising cylinder portion 87 that extends upward from the outer peripheral edge portion of the flange portion 86. The flange portion 86 forms the connecting plate 78 in the discharge device 5 according to the first embodiment and the second embodiment, and the rising tube portion 87 forms the upper tube portion 76 in the discharge device 5. In the present embodiment, the upper end portion of the rising cylinder portion 87 is attached to the pump attachment portion 55.
In the ejector 5E, for example, the mounting member 82 may be omitted. In this case, a configuration in which the sliding cylinder portion 83 forms the upper cylinder portion 76 in the discharge device 5 may be adopted.

  The stem 73 and the piston 79 are disposed in the sliding cylinder portion 83 of the cylinder body 81. The stem 73 protrudes upward from the cylinder body 81. The piston retainer 80 is attached to the outer peripheral surface of the sliding cylinder portion 83. A part of the piston retainer 80 protrudes from the upper end edge of the sliding cylinder portion 83 toward the inside in the radial direction, and restricts the separation of the piston 79 from the cylinder 72 to the information.

The pressing head 71 is formed in a multiple top cylinder shape. The pressing head 71 includes a top wall portion 88, an outer cylinder portion 89, and an inner cylinder portion 90. The top wall portion 88 is disposed above the cap body 57. The outer cylinder portion 89 extends downward from the outer peripheral edge portion of the top wall portion 88 and is inserted into the mounting member 82 through the operation hole 57a. The inner cylinder portion 90 extends downward from the top wall portion 88. The inner cylinder part 90 has a smaller diameter than the outer cylinder part 89 and is inserted into the sliding cylinder part 83 of the cylinder body 81.
A discharge hole 71 a is formed in the top wall portion 88. The discharge hole 71a is disposed coaxially with the container axis O and penetrates the top wall portion 88 in the container axis O direction. The discharge hole 71a opens into the inner cylinder portion 90.

Here, the pump unit 51 further includes a suction valve 91 and a discharge valve 92.
The suction valve 91 is a check valve that allows inflow of contents from the accommodation space 10 into the cylinder 72 and restricts outflow from the cylinder 72 into the accommodation space 10. The suction valve 91 is a so-called three-point valve. The suction valve 91 is disposed in the sliding cylinder portion 83 and is seated on the step portion 85 so as to be separated. The suction valve 91 closes the inside of the stepped portion 85 by being seated on the stepped portion 85 and blocks communication between the inside of the sliding cylinder portion 83 and the accommodation space 10. The suction valve 91 is separated from the step portion 85 to open the inside of the step portion 85, and communicates the inside of the sliding cylinder portion 83 and the accommodation space 10. The suction valve 91 opens, for example, against an elastic biasing force when a negative pressure is generated in the sliding cylinder 83, and closes at other times.

  The discharge valve 92 allows discharge of contents from the inside of the stem 73 through the discharge hole 71a to the outside, and restricts inflow of contents and air from the outside through the discharge hole 71a into the stem 73. It is a valve. The discharge valve 92 is disposed in the discharge hole 71a in a state where the amount of movement in the container axis O direction is regulated. The discharge valve 92 is formed in a rod shape whose diameter is expanded at both ends in the container axis O direction. The upper end portion of the discharge valve 92 is seated on the top wall portion 88 of the pressing head 71 so as to be separated. The upper end portion of the discharge valve 92 is seated on the top wall portion 88 to close the discharge hole 71a, thereby blocking communication between the inside of the stem 73 and the outside. The upper end portion of the discharge valve 92 is separated from the top wall portion 88 to open the discharge hole 71a, and the inside of the stem 73 communicates with the outside. The discharge valve 92 is opened by elastic deformation when a positive pressure is generated in the stem 73, and is closed at other times.

  Next, a replacement operation for attaching the discharger 5E to the replacement container 1E will be described.

First, the cap 3 of the replacement container 1E is detached from the mouth 2a of the container body 2.
Next, as shown in FIG. 14, the discharger 5 </ b> E is caused to enter the accommodating cylinder portion 11 from the cylinder 72 side, and the mounting cap 52 is screwed to the mouth portion 2 a of the container body 2. Then, in the cylinder 72, the suction cylinder portion 84 is fitted in the inner fitting cylinder 13 of the inner member 4, and the mounting member 82 is accommodated in the accommodating cylinder portion 11. Further, in the process of relatively rotating the mounting cap 52 and the replacement container 1E in the tightening direction around the container axis O and screwing the mounting cap 52 into the mouth portion 2a, the discharger 5E moves downward relative to the replacement container 1E.

Accordingly, as shown in FIG. 15, the lower end edge of the suction cylinder portion 84 is engaged with the plug member 31 while the seal portion 17 of the inner member 4 is in contact with the outer peripheral surface of the suction cylinder portion 84 of the cylinder 72. The protrusion 33 is pushed downward, and the weakened portion 32 is broken. Then, the communication between the inside and outside of the container main body 2 that passes between the inner peripheral surface of the housing cylinder portion 11 and the outer peripheral surface of the cylinder 72 is blocked by the seal portion 17, while the inner fitting tube 13 and the communication tube portion 12. Is released.
By the above, the replacement operation to the replacement container 1E of the discharger 5E is completed, and the discharge container 8 is formed.

  Thereafter, when discharging the contents through the discharger 5E, the overcap 58 is operated to open the cap body 57 and take out the puff 58a. For example, when the pressing head 71 is pressed with the puff 58 a or the like, the stem 73 and the piston 79 move downward together with the pressing head 71. Then, the piston 79 slides downward on the inner peripheral surface of the sliding cylinder portion 83 (cylinder 72), whereby the inside of the sliding cylinder portion 83 is pressurized. As a result, the content in the sliding cylinder 83 passes through the stem 73 and the discharge hole 71a, and is discharged to the outside while pushing up the upper end of the discharge valve 92 and elastically deforming it.

  When the pressing of the pressing head 71 is released after the contents are discharged, the stem 73, the piston 79, and the pressing head 71 are restored and moved upward with respect to the cylinder 72. Then, the inside of the sliding cylinder 83 becomes negative pressure, and the contents in the container main body 2 (accommodating space 10) open the suction valve 91 and flow into the sliding cylinder 83 through the communication cylinder 12. At this time, while the outside air is sucked into the air chamber 2k through the air introduction hole 2j, the inner tray 9 rises in the container body 2. Thereby, smooth discharge operation by the discharger 5E can be performed.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, the inner member 4 may further include an inner ring that is fitted into the mouth portion 2 a of the container body 2. The inner ring may extend downward from the outer flange portion 23.

The engagement protrusion 33 may not be provided.
In the said embodiment, although the weakening part 32 has connected the plug member 31 and the internal fitting cylinder 13, and the weakening part 32 has connected the main body cylinder part 18 and the plug member 31 indirectly, this invention is It is not limited to this. For example, the weakening part 32 may directly connect the main body cylinder part 18 and the plug member 31, and the plug member 31 may be formed integrally with the main body cylinder part 18. Further, the plug member 31 is detachably fitted to the main body cylinder portion 18 (communication cylinder portion 12) instead of being directly or indirectly connected to the main body cylinder portion 18 via the weakening portion 32. It may be.

  The seal portion 17 is not limited to the configuration shown in the embodiment. For example, the seal part 17 may be provided in the mouth part 2 a of the container body 2. In this case, the seal part 17 may block communication between the inside of the container main body 2 that passes between the inner member 4 and the discharger 5 and the outside by contacting the mounting cap 52 of the discharger 5.

  In the said embodiment, although the cap 3 is screwed by the opening part 2a, it is not restricted to this. For example, the cap 3 may be plugged into the mouth portion 2a and detachably attached to the mouth portion 2a. Further, instead of the cap 3, for example, a sealing member such as an aluminum seal is detachably attached to the upper end opening of the inner member 4 (the upper end opening of the main body cylinder portion 18). The upper end opening of the opening may be closed freely. Further, the cap 3 and the sealing member may not be provided.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

1A, 1B, 1C, 1D, 1E Replacement container 2 Container body 2a Mouth part 4 Inner member 5, 5E Discharger 10 Storage space 11 Storage cylinder part 17 Seal part 31 Plug member 32 Weak part 33 Engagement protrusion 71a Discharge hole 72 Cylinder

Claims (4)

A container body having a storage space in which the contents are stored and volume is reduced as the contents are reduced;
An accommodating cylinder disposed in the mouth of the container main body, and an inner member having a plug member that blocks communication between the accommodating cylinder and the container main body,
By attaching a discharge device for discharging the contents in the container main body from the discharge hole to the mouth portion, a cylinder whose inside communicates with the discharge hole is housed in the housing cylinder portion. The replacement container is characterized in that the cylinder releases the blocking of the communication between the inside of the housing cylinder and the inside of the container body by the plug member.   The replacement container according to claim 1, wherein the plug member is connected via a weakened portion that can be broken.   The replacement container according to claim 2, wherein an engagement protrusion that engages with the cylinder is formed on an upper surface of the plug member that faces the mouth side of the container main body.   The inner peripheral surface of the inner member is in contact with the outer peripheral surface of the cylinder, thereby blocking communication between the inside of the container main body and the outside through the space between the inner peripheral surface of the inner member and the outer peripheral surface of the cylinder. The replacement container according to any one of claims 1 to 3, wherein a sealing portion is provided.

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