JP2018172153A - Double container with outer case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double container with an outer case which, while retaining the advantages of double containers, can obtain a high texture.SOLUTION: The double container with an outer case includes an inner layer body 4 that contains the contents and allows volume-reducing deformation, an outer layer body 5 that contains the inner layer body 4 inside and has a body part 5c with flexibility, and a discharging cap 6 which has a discharging outlet 10c that discharges the contents contained in the inner layer body 4 and is mounted on an opening part 5a of the outer layer body 5. Of the double container 1, an outer case 2 containing the outer layer body 5 is provided, the outer case 2 includes a button part 12c that can press the body part 5c and a connecting part 12b that elastically supports the button part 12c against the outer case 2.SELECTED DRAWING: Figure 1

Description

  The present invention provides a double container comprising an inner layer body that contains contents, an outer layer body that contains the inner layer body inside, and a dispensing cap that is attached to the mouth of the outer layer body. The present invention relates to a double container with an outer case.

  2. Description of the Related Art Conventionally, as a container capable of pouring out contents, for example, as shown in Patent Document 1, a double container having a volume-deformable inner layer body that accommodates contents and an outer layer body having flexibility is provided. A container (also called a delamination container or a delamination container) is used. In such a double container, the inner space between the outer layer body and the inner layer body is pressurized by pressing the body portion of the outer layer body, thereby increasing the pressure of the inner layer body and discharging the contents. Can do. That is, regardless of the posture of the container, if the outer layer body is pressed, the pressure of the inner layer body increases, so that the container can be tilted to an angle that is easy for the user to use and the contents can be poured out. Further, when the pressure applied to the outer layer body is released, only the flexible outer layer body is restored and the inner layer body remains in a reduced volume deformation, so that it is possible to prevent the outside air from entering the inner layer body. That is, since the contact between the contained contents and the outside air is avoided as much as possible, the quality deterioration of the contents can be suppressed. The double container having such excellent advantages is suitable for storing various contents including seasonings and cosmetics, and has been rapidly spread in recent years.

JP-A-2015-163520

  By the way, depending on the type of content and the environment in which it is used, such as when the content to be stored is expensive, there is a desire to use a high-quality container. Here, in order to enhance the texture of the container, for example, it may be possible to decorate the outside of the container or to deposit a metal component, but the above-mentioned double container presses the outer layer body to Since it is to be poured out, it has to be prevented from affecting the deformation of the outer layer body caused by pressing, and there is a problem that the decoration that can be selected is limited. Also, in order to give flexibility to the outer layer body, the outer layer body must be formed of a relatively soft synthetic resin, or the wall thickness must be reduced. Even in this respect, there is a problem that it is difficult to obtain a high-class feeling.

  An object of the present invention is to provide a double container with an outer case, which can obtain such a high texture while retaining the advantages of the conventional double container. Objective.

The present invention provides a volume-deformable inner layer body that contains contents, an outer layer body that houses the inner layer body and has a flexible body, and the contents contained in the inner layer body. A double container comprising a pouring cap having a pouring outlet attached to the mouth of the outer layer body,
An outer case for accommodating the outer layer body is provided, and the outer case includes a button portion capable of pressing the trunk portion, and a connecting portion that elastically supports the button portion with respect to the outer case. It is a double container.

  The outer case has a cylindrical shape with a bottom and accommodates the outer layer body from the upper opening and has a body cover having a window hole for exposing the button part, and an exposure opening for exposing the pouring cap. It is preferable to provide an upper cover that is attached to the opening and surrounds the outer layer body with the main body cover.

  The outer case has a cylindrical shape with a cover, has an exposure opening for exposing the pouring cap, a window hole for exposing the button part, and a main body cover for receiving the outer layer body from the lower opening, and the lower opening And a lower cover surrounding the outer layer body with the main body cover.

  The outer case includes an operation member having a base portion accommodated in the main body cover, and a plate-shaped portion having one end portion connected to the base portion and the other end portion connected to the button portion as the connection portion. It is preferable.

  In the state where the button portion is exposed from the window hole, the connecting portion is preferably one end portion integrally connected to the main body cover and the other end portion integrally connected to the button portion. .

The present invention also includes a volume-deformable inner layer body that contains the contents, an outer layer body that houses the inner layer body and has a flexible body, and the contents contained in the inner layer body. In a double container provided with a pouring cap that has a pouring outlet to be put out and attached to the mouth of the outer layer body,
An outer case for housing the outer layer body is provided, and the outer case is also a double container with an outer case having a window hole capable of pressing the trunk portion.

The present invention also includes a volume-deformable inner layer body that contains the contents, an outer layer body that houses the inner layer body and has a flexible body, and the contents contained in the inner layer body. In a double container with an outer case, comprising a double container having a pouring outlet to be put out and having a pouring cap attached to the mouth of the outer layer body, and an outer case for housing the outer layer body,
The trunk portion has a convex portion protruding outward, and the outer case is also a double container with an outer case having a window hole for exposing the convex portion.

  In the present invention, an outer case for housing the outer layer body is provided, and this outer case elastically supports the button part capable of pressing the body part of the outer layer body and the button part with respect to the outer case. And a connecting portion. According to such a configuration, since it is possible to press and release the outer layer body through the button part, it is possible to pour out the contents at an easy-to-use angle like a conventional double container, Moreover, since the penetration | invasion of the external air to an inner layer body is suppressed, the quality deterioration of a content can be suppressed. Furthermore, since only the connecting portion is bent even when the button portion is pressed, various decorations can be applied to the outer case, and a high texture can be obtained.

  In addition, when providing a window hole capable of pressing the body part on the outer case, or providing a convex part protruding outward from the body part and providing a window hole that causes the convex part to appear on the outer case, Since the button portion thus made can be omitted, the cost can be further reduced.

It is a half sectional view in side view which shows 1st embodiment of the double container with an outer case according to this invention. It is the elements on larger scale of the double container with an outer case shown in FIG. FIG. 2 is a half cross-sectional view along AA shown in FIG. 1 (overcap is omitted). It is a figure explaining the assembly method of the double container with an outer case shown in FIG. It is a half sectional view in a side view showing a modification of the first embodiment. FIG. 6 is a half cross-sectional view along BB shown in FIG. 5 (overcap is omitted). It is a figure explaining the assembly method of the double container with an outer case shown in FIG. It is a half sectional view in side view which shows 2nd embodiment of the double container with an outer case according to this invention. It is the elements on larger scale of the double container with an outer case shown in FIG. FIG. 9 is a half sectional view taken along the line CC shown in FIG. 8 (overcap is omitted). It is a figure explaining the assembly method of the double container with an outer case shown in FIG. It is a half sectional view in a side view showing a modification of the second embodiment. FIG. 13 is a half sectional view taken along the line DD shown in FIG. 12 (overcap is omitted). It is a figure explaining the assembly method of the double container with an outer case shown in FIG. It is the figure which showed 3rd embodiment of the double container with an outer case according to this invention corresponding to FIG. It is the figure which showed 4th embodiment of the double container with an outer case according to this invention corresponding to FIG.

  Hereinafter, a first embodiment of a double container with an outer case according to the present invention will be described with reference to the drawings. Note that “upper” and “lower” in this specification and the like refer to directions when the main body cover (reference numeral 11) is positioned downward and the overcap (reference numeral 3) is positioned upward as shown in FIG. Say.

  The double container with an outer case of the present embodiment includes a double container 1, an outer case 2, and an overcap 3.

  First, the double container 1 will be described. The double container 1 of the present embodiment includes an inner layer body 4, an outer layer body 5, and a dispensing cap 6. The pouring cap 6 includes an inner plug 7, a check valve 8, a pouring cap body 9, and a nozzle 10.

  The inner layer body 4 is provided with a filling space S in which contents can be accommodated. The inner layer body 4 of the present embodiment is made of a thin synthetic resin and is provided so as to be capable of volumetric deformation.

  The outer layer body 5 includes a mouth portion 5a having a cylindrical shape. Below the mouth 5a is connected a shoulder 5b having a rounded diameter expanding downward, and further below the shoulder 5b is a cylindrical body 5c and a lower end of the body 5c. A bottom portion 5d for closing the portion is provided. Here, the mouth portion 5a is provided with a vent hole 5e penetrating the mouth portion 5a as shown in FIG. 2, and an internal space formed between the inner layer body 4 and the outer layer body 5 communicates with the vent hole 5e. ing. A male screw portion 5f is provided on the outer peripheral surface of the mouth portion 5a. In addition, the outer layer body 5 of this embodiment is made of a synthetic resin, and the body portion 5c has flexibility.

  The inner layer body 4 and the outer layer body 5 in the present embodiment are formed by stacking synthetic resins having low compatibility with each other in a peelable manner. As the synthetic resin constituting the inner layer body 4, a nylon resin (PA), an ethylene vinyl alcohol copolymer resin (EVOH), or a modified polyolefin resin (for example, “Admer” (registered trademark) manufactured by Mitsui Chemicals, Inc.) should be adopted. Can do. Moreover, as a synthetic resin which comprises the outer layer body 5, polypropylene (PP) other than polyethylene resin (PE) including low density polyethylene (LDPE) and high density polyethylene resin (HDPE) can be employ | adopted, for example. Such inner layer body 4 and outer layer body 5 can be obtained by blow molding a parison in which a synthetic resin material forming inner layer body 4 and a synthetic resin material forming outer layer body 5 are laminated, In addition, a test tubular preform in which the synthetic resin material of the inner layer body 4 and the synthetic resin material of the outer layer body 5 are laminated is prepared, and this preform is formed by biaxial stretch blow molding, A body and an outer layer body can be formed separately, and then the inner layer body can be arranged inside the outer layer body. Although not shown, one or a plurality of adhesive bands that extend in the vertical direction between the inner layer body 4 and the outer layer body 5 and partially join the inner layer body 4 and the outer layer body 5 to each other. May be provided.

  As shown in FIG. 2, the inner plug 7 includes a top wall 7 a that is located above the mouth portion 5 a and closes the filling space S. A cylindrical tubular wall 7b having an inward flange at the lower end is provided at the center of the top wall 7a. Further, an annular seal wall 7c that sandwiches the inner layer body 4 with the outer layer body 5 is provided on the lower surface of the top wall 7a. An annular wall 7d that stands up from the outer edge of the ceiling wall 7a is provided on the top surface of the ceiling wall 7a, and communication between the ceiling wall 7a and the annular wall 7d communicates with the vent 5e of the outer layer body 5. A mouth 7e is provided.

  The check valve 8 includes a base portion 8 a that is held by the inner plug 7. The base portion 8a of the present embodiment has a configuration in which two cylindrical portions positioned on the radially inner side and the outer side of the cylindrical wall 7b are integrally connected to a donut plate-shaped portion positioned on the upper portion of the cylindrical wall 7b. It is. A disc-shaped discharge valve 8b that is elastically connected to the base portion 8a and sits on the inward flange portion of the cylindrical wall 7b to close the filling space S is provided inside the base portion 8a in the radial direction. ing. Further, on the radially outer side of the base portion 8a, there is provided an air valve 8c having a donut plate shape, the outer edge of which is seated on the pouring cap body 9 and restricting the flow of air from the communication port 7e.

  As shown in FIG. 2, the dispensing cap main body 9 includes a cylindrical outer peripheral wall 9 a that surrounds the inner plug 7 and the check valve 8 and is attached to the mouth portion 5 a of the outer layer body 5. On the inner surface of the outer peripheral wall 9a, a female screw portion 9b that fits the male screw portion 5f is provided. Further, the inner surface of the outer peripheral wall 9a is also a part where the air valve 8c is seated as shown in the figure. An inner wall 9c is provided on the inner side of the upper portion of the dispensing cap body 9 so as to contact the upper surface of the base portion 8a and prevent the check valve 8 from coming off. The inner wall 9c of the present embodiment has a donut plate-like portion that abuts on the base 8a, an outer cylindrical portion that rises from the outer edge of the donut plate-like portion and is connected to the outer peripheral wall 9a, and an inner edge of the donut plate-like portion. The inner cylindrical part to be connected is integrally formed. Further, the base portion 8a is provided with a groove portion 9d in the outer cylindrical portion.

  The nozzle 10 includes a top wall 10 a located above the dispensing cap body 9. The bottom surface of the top wall 10a is provided with a fitting wall 10b that has a cylindrical shape and is fitted and held on the base 8a. Further, on the top surface of the top wall 10a, a dispensing cylinder 10d having a cylindrical shape and having a spout 10c at the upper end is provided.

  The above-described dispensing cap 6 constituted by the inner plug 7, the check valve 8, the dispensing cap main body 9, and the nozzle 10 has the inner plug 7, the check valve 8, and the nozzle for the dispensing cap main body 9. 10 can be held, and can be handled like a single member by assembling them in advance.

  Next, the outer case 2 will be described. As shown in FIG. 1, the outer case 2 includes a main body cover 11, an operation member 12, and an upper cover 13.

  The main body cover 11 has a bottomed cylindrical shape that is slightly larger than the outer layer body 5, and can accommodate the double container 1 from the upper opening 11a. Here, an internal thread portion 11b is provided on the inner surface of the upper opening 11a. The main body cover 11 is provided with a window hole 11c that penetrates the front and back of the main body cover 11 and has a vertically long oval shape in the illustrated example at a portion facing the body portion 5c of the outer layer body 5. Although one window hole 11c of this embodiment is provided as shown in FIG. 3, the number is not limited, and a plurality of window holes 11c may be provided.

  The operation member 12 includes a bottomed cylindrical base 12 a that is positioned near the bottom 5 d of the outer layer body 5, surrounds the outer layer body 5, and is accommodated inside the main body cover 11. Further, a plate-like portion 12b whose one end portion is integrally connected to the base portion 12a is provided on the upper portion of the base portion 12a. Further, the other end of the plate-like portion 12b is formed slightly smaller than the window hole 11c, and as shown in FIG. 3, the outer surface bulges outward from the window hole 11c and the inner surface is the outer layer body 5. The button part 12c which makes the form which touches the trunk | drum 5c is provided. Thus, since the button portion 12c is cantilevered by the plate-like portion 12b, when the button portion 12c is pressed inward from the outside, the plate-like portion is pressed while pressing the body portion 5c with the inner surface of the button portion 12c. The portion 12b can be elastically bent. In addition, although the one button part 12c of this embodiment is provided as shown in FIG. 3, there is no limitation in the number, for example, as shown in a virtual line in FIG. Good.

  The upper cover 13 has a substantially cylindrical shape and extends along the shoulder portion 5 b of the outer layer body 5. In the upper part of the upper cover 13, an exposure opening 13a for exposing the dispensing cap body 9 is provided. An upper cover cylindrical wall 13b that rises upward is provided at the edge of the exposure opening 13a. Further, a male screw portion 13c that fits the female screw portion 11b is provided on the outer surface of the lower end portion of the upper cover 13.

  The overcap 3 has a covered cylinder shape, and in this embodiment, the upper part has a larger diameter than the lower part. The overcap 3 is detachably held with respect to the upper cover cylindrical wall 13b. Further, as shown in FIG. 2, an annular seal portion 3a that abuts against the inner surface of the dispensing cylinder 10d is provided on the lower surface of the overcap 3.

  And when accommodating the double container 1 in the outer case 2, as shown in FIG. 4, the operation member 12 is accommodated in the main body cover 11 so that the button part 12c may protrude from the window hole 11c. Then, the double container 1 is accommodated in the main body cover 11 from the upper opening 11a, and the upper cover 13 is placed on the double container 1, and the upper cover 13 is rotated with respect to the main body cover 11. As a result, the male screw portion 13 c is screwed into the female screw portion 11 b, and the upper cover 13 can be attached to the main body cover 11.

  In order to pour out the contents from the double container 1 accommodated in the outer case 2 in this way, after removing the overcap 3 as shown in FIG. 3, the nozzle 10 is directed toward the object to be poured out. Let And when the button part 12c is pressed, the trunk | drum 5c is also pressed in connection with it, Therefore The internal space formed between the outer-layer body 5 and the inner-layer body 4 is pressurized, and the pressure of the filling space S also increases. become. Thereby, the contents of the filling space S are poured out from the spout 10c of the spout cylinder 10d through the inside of the spout cap body 9 while lifting the spout valve 8b shown in FIG. Thus, since the contents of the filling space S are poured out by pressurization of the internal space, the contents can be poured out regardless of the posture of the double container 1. Moreover, since the button part 12c is connected with the plate-shaped part 12b, the displacement amount at the time of pressing this will be restricted to a certain range. Thereby, since the quantity of the content to be poured out can be kept within a predetermined range, it is possible to prevent a problem that the contents are unintentionally poured out in an excessive amount. The internal space described above communicates with the vent 5e, and the vent 5e communicates with the outside through the communication port 7e and the groove 9d. However, there is a gap between the communication port 7e and the groove 9d. Since the air valve 8c seated on the outer peripheral wall 9a of the outlet cap body 9 is provided, the air in the inner space does not leak to the outside when the button portion 12c is pressed.

  After the content has been poured out, when the pressure on the button part 12c is released, the bent plate-like part 12b is restored, so that the button part 12c returns to its original position. Further, since the outer layer body 5 that has been pressed by the button portion 12c also tries to be restored by its own flexibility, the internal space described above is decompressed. Here, the air valve 8c is seated on the outer peripheral wall 9a to block the flow of air from the inner space to the outside world, while allowing the air flow from the outer world to the inner space by separating from the outer peripheral wall 9a. It is. For this reason, the air from the outside is introduced into the internal space under reduced pressure through the groove 9d, the communication port 7e, and the vent 5e. Thereby, the outer layer body 5 can be restored while the inner layer body 4 is deformed and deformed. That is, in the inner layer body 4, the contents can be poured out without performing air replacement, so that the quality deterioration of the contents accommodated in the filling space S can be suppressed.

  By the way, since the double container 1 can be removed from the main body cover 11 after the contents are used up, it can be replaced with a new double container 1 filled with the contents. That is, the main body cover 11, the operation member 12, the upper cover 13, and the overcap 3 can be reused even after the contents are used up.

  Furthermore, even if the button portion 12c is pressed to pour out the contents, only the plate-like portion 12b is bent and deformed, and the main body cover 11, the button portion 12c of the operation member 12, and the upper cover can be visually recognized from the outside. Since 13 is not deformed, the desired decoration including the overcap 3 can be applied. Moreover, it is possible to use a hard material as what forms these members, and it is also possible to give thickness. For this reason, a high texture can be produced not only in appearance but also in touch when it is held.

  In addition, in the double container with an outer case of 1st embodiment mentioned above, it is also possible to employ | adopt a structure as shown, for example in FIGS. In the modification of the first embodiment shown in FIGS. 5 to 7, the operation member 12 is eliminated, while the main body cover 11 is provided with a button portion 11 d having the same form as the button portion 12 c described above, and a main body. The connecting portion 11e is thinner than the cover 11 and has one end portion integrally connected to the edge portion of the window hole 11c and the other end portion integrally connected to the edge portion of the button portion 11d. That is, the button portion 11 d is elastically cantilevered with respect to the main body cover 11.

  In the double container with an outer case having such a configuration, when the double container 1 is accommodated in the outer case 2, the double container 1 is accommodated in the main body cover 11 from the upper opening 11a as shown in FIG. Then, the upper cover 13 may be put on the double container 1 and the upper cover 13 may be rotated with respect to the main body cover 11.

  Moreover, in order to pour out the contents, the button portion 11d may be pressed, and the double container with an outer case of the present embodiment can be used in the same manner as the previously described embodiment.

  Next, a second embodiment of the double container with an outer case according to the present invention will be described with reference to FIGS. The double container with an outer case of the present embodiment includes a double container 21, an outer case 22, and an overcap 23.

  The double container 21 includes an inner layer body 24, an outer layer body 25, and a dispensing cap 26. The pouring cap 26 includes an inner stopper 27, a check valve 28, and a pouring cap body 29. The outer case 22 includes a main body cover 31, an operation member 32, and a lower cover 33. The inner layer body 24 has the same configuration as that of the inner layer body 4 described above, and a description thereof will be omitted.

  The outer layer body 25 includes a mouth portion 25a, a shoulder portion 25b, a trunk portion 25c, and a bottom portion having the same configuration as the mouth portion 5a, the shoulder portion 5b, the trunk portion 5c, the bottom portion 5d, the vent hole 5e, and the male screw portion 5f described above. 25d, a vent 25e, and a male screw portion 25f (see FIG. 9). As shown in FIGS. 8 and 10, the body portion 25c is formed so that the outer diameter of the upper portion is smaller than the outer diameter in the vicinity of the bottom portion 25d.

  As shown in FIG. 9, the inner plug 27 includes a ceiling wall 27a and a cylindrical wall 27b having the same configuration as the top wall 7a, the cylindrical wall 7b, the seal wall 7c, the annular wall 7d, and the communication port 7e described above. A sealing wall 27c, an annular wall 27d, and a communication port 27e are provided.

  The check valve 28 includes a base portion 28a, a pouring valve 28b, and an air valve 28c having the same configuration as the base portion 8a, the pouring valve 8b, and the air valve 8c described above.

  As shown in FIG. 9, the dispensing cap main body 29 includes a cylindrical outer peripheral wall 29a that surrounds the inner plug 27 and the check valve 28 and is attached to the mouth portion 25a, and is provided on the inner surface of the outer peripheral wall 29a. Is provided with a female screw portion 29b that fits into the male screw portion 25f. The outer peripheral wall 29a has a function of seating the air valve 28c and restricting the flow of air, and a function of contacting the base 28a to prevent the check valve 28 from coming off. The outer peripheral wall 29a is provided with an opening 29c penetrating the outer peripheral wall 29a above the portion where the air valve 28c is seated. Further, a pouring cylinder 29e is provided at the center of the outer peripheral wall 29a. The pouring cylinder 29e forms a spout 29d with an opening at the top. Furthermore, the outer surface of the outer peripheral wall 29a is provided with a protrusion 29f extending along the circumferential direction.

  The main body cover 31 has a covered cylindrical shape that is slightly larger than the outer layer body 25, and can accommodate the double container 21 from the lower opening 31a. As shown in FIG. 9, an exposure opening 31 b that exposes the dispensing cylinder 29 e of the accommodated double container 21 is provided in the upper center of the main body cover 31. Further, a male screw portion 31c for holding the overcap 23 is provided on the upper outer peripheral surface of the main body cover 31, and an elastic piece 31d is provided below the male screw portion 31c as shown in FIG. Yes. In addition, as shown in FIG. 9, the claw part 31e engaged with the protrusion 29f is provided in the back surface of the elastic piece 31d. Moreover, as shown in FIG. 8, the external thread part 31f is provided in the outer surface of the lower opening 31a. Further, the main body cover 31 is provided with a window hole 31g having a vertically long oval shape at a portion facing the body portion 25c of the outer layer body 25.

  The operation member 32 includes an annular base portion 32 a that is located in the vicinity of the bottom portion 25 d of the outer layer body 25, surrounds the outer layer body 25, and is accommodated inside the main body cover 31. Further, a plate-like portion 32b whose one end is integrally connected to the base portion 32a is provided on the upper portion of the base portion 32a. Further, the other end of the plate-like portion 32b is formed slightly smaller than the window hole 31g, and as shown in FIG. 10, the outer surface bulges outward from the window hole 31g, and the inner surface is the trunk portion 25c. The button part 32c which makes the form which touches is provided.

  The lower cover 33 has a bottomed cylindrical shape, and a female screw portion 33a that fits the male screw portion 31f is provided on the inner peripheral surface thereof.

  The overcap 23 has a covered cylindrical shape, and its outer peripheral surface is formed so as to have substantially the same diameter over the entire area. Further, as shown in FIG. 9, a cylindrical seal portion 23a that contacts the inner surface of the dispensing tube 29e is provided on the lower surface of the overcap 23, and a female screw that fits the male screw portion 31c is provided on the inner peripheral surface thereof. A portion 23b is provided.

  In the present embodiment, when the double container 21 is accommodated in the outer case 22, as shown in FIG. 11, the operation member 32 is accommodated in the main body cover 31 so that the button portion 32c appears from the window hole 31g. The double container 21 is accommodated in the main body cover 31 from the lower opening 31a. At this time, as shown in FIG. 9, the protrusion 29 f of the dispensing cap main body 29 engages with the claw portion 31 e of the main body cover 31, so that the double container 21 can be held on the outer case 22. For this reason, even if the hand is released from the double container 21, the double container 21 does not fall off from the outer case 22. Thereafter, when the lower cover 33 is applied from below the main body cover 31 and the lower cover 33 is rotated with respect to the main body cover 31, the female screw portion 33a is screwed into the male screw portion 31f, and the lower cover 33 is attached to the main body cover 31. Can be attached to.

  In this manner, in order to pour out the contents from the double container 21 accommodated in the outer case 22, the button portion 32c may be pressed as in the above-described embodiments. When the pressure on the button portion 32c is released, the outside air is taken into the main body cover 31 through a gap around the elastic piece 31d and the window hole 31g, and the air valve 28c is separated from the outer peripheral wall 29a. The air is introduced into the internal space between the inner layer body 24 and the outer layer body 25 from the vent hole 25e through the opening 29c and the communication port 27e. Therefore, even in the present embodiment, the outer layer body 25 can be restored while the inner layer body 24 is deformed and deformed. Further, as shown in FIGS. 8 and 10, the main body cover 31 of the present embodiment can be held stably because the upper portion has a small diameter with respect to the lower portion for easy gripping.

  Moreover, since the lower cover 33 can be removed from the main body cover 31 after the content is used up, it can be replaced with a new double container 21 filled with the content. The double container 21 is held by the outer case 22 with the protrusion 29f engaged with the claw portion 31e of the elastic piece 31d. However, if the double container 21 is pulled out slightly from the outer case 22, the elastic piece 31d is moved outward. In order to escape, the used double container 21 can be removed from the outer case 22.

  In addition, in the double container with an outer case of 2nd embodiment mentioned above, it is also possible to employ | adopt a structure as shown, for example in FIGS. In the modification of the second embodiment shown in FIG. 12 to FIG. 14, the operation member 32 is abolished, while the main body cover 31 is provided with a button portion 31 h having the same form as the button portion 32 c described above, and a main body. The connecting portion 31j is thinner than the cover 31 and has one end portion integrally connected to the edge portion of the window hole 31g and the other end portion integrally connected to the edge portion of the button portion 31h.

  In the double container with the outer case having such a configuration, when the double container 21 is accommodated in the outer case 22, the double container 21 is accommodated in the main body cover 31 from the lower opening 31a as shown in FIG. Further, the lower cover 33 may be applied from below the main body cover 31 and the lower cover 33 may be rotated with respect to the main body cover 31.

  In addition, when the contents are poured out, the button portion 31h may be pressed, and the double container with an outer case of the present embodiment can be used in the same manner as the embodiments described so far.

  The double container with an outer case according to the present invention is not limited to the embodiments described so far, and includes those modified in various ways within the scope of the claims. For example, in the embodiment described above, a window hole is provided in the main body cover and a button portion is provided in the operation member and the main body cover. However, as shown in FIG. Alternatively, the body 5c of the outer layer body 5 may be directly pressed. Further, as shown in FIG. 16, a convex portion 5g that protrudes outward from the body portion 5c and has the same form as the button portion described above is provided, and the convex portion 5g is configured to appear from the window hole 11c. May be. In the embodiment of FIGS. 15 and 16, an example in which the outer case is configured with a main body cover and an upper cover as shown in FIG. 6 is shown. However, the outer case as shown in FIG. The lower cover may be used. Further, the pouring cap is not limited to the one described so far, and various types of pouring caps such as a spherical shape of the pouring valve can be adopted. Moreover, the vent provided in the mouth part of the outer layer body may be provided in the bottom part of the outer layer body or in the trunk part. Further, the connection between the main body cover and the upper cover (lower cover) is not limited to a screw, and may be connected by, for example, an undercut.

1: Double container 2: Outer case 3: Overcap 3a: Seal part 4: Inner layer body 5: Outer layer body 5a: Mouth part 5b: Shoulder part 5c: Body part 5d: Bottom part 5e: Vent 5f: Male thread part 5g: Convex portion 6: Discharge cap 7: Inner plug 7a: Top wall 7b: Cylindrical wall 7c: Seal wall 7d: Ring wall 7e: Communication port 8: Check valve 8a: Base 8b: Discharge valve 8c: Air valve 9 : Outlet cap body 9a: Outer peripheral wall 9b: Internal thread portion 9c: Internal wall 9d: Groove portion 10: Nozzle 10a: Top wall 10b: Fitting wall 10c: Outlet 10d: Outlet tube 11: Main body cover 11a: Upper opening 11b : Female screw part 11c: Window hole 11d: Button part 11e: Connection part 12: Operation member 12a: Base part 12b: Plate-like part (connection part)
12c: Button part 13: Upper cover 13a: Exposed opening 13b: Upper cover cylindrical wall 13c: Male screw part 21: Double container 22: Outer case 23: Overcap 23a: Seal part 23b: Female screw part 24: Inner layer body 25: Outer layer 25a: mouth 25b: shoulder 25c: trunk 25d: bottom 25e: vent 25f: male thread 26: pouring cap 27: inner plug 27a: top wall 27b: cylindrical wall 27c: seal wall 27d: annular Wall 27e: Communication port 28: Check valve 28a: Base portion 28b: Outlet valve 28c: Air valve 29: Outlet cap body 29a: Outer wall 29b: Female thread portion 29c: Opening 29d: Outlet 29e: Outlet tube 29f: Projection 31: Main body cover 31a: Lower opening 31b: Exposure opening 31c: Male screw part 31d: Elastic piece 31e: Claw part 31f: Male screw part 31g: Window hole 31h: Button part 31j Connecting portion 32: operating member 32a: base 32 b: the plate-like portion (connecting portion)
32c: Button part 33: Lower cover 33a: Female thread part S: Filling space

Claims (7)

A volume-reducible inner layer body that contains the contents, an outer layer body that has the inner layer body inside and has a flexible body, and a spout for pouring the contents contained in the inner layer body In a double container comprising a pouring cap attached to the mouth of the outer layer body,
An outer case for accommodating the outer layer body is provided, and the outer case includes a button portion capable of pressing the trunk portion, and a connecting portion that elastically supports the button portion with respect to the outer case. Double container.   The outer case has a cylindrical shape with a bottom and accommodates the outer layer body from the upper opening and has a body cover having a window hole for exposing the button part, and an exposure opening for exposing the pouring cap. The double container with an outer case according to claim 1, further comprising an upper cover attached to the opening and surrounding the outer layer body with the main body cover.   The outer case has a cylindrical shape with a cover, has an exposure opening for exposing the pouring cap, a window hole for exposing the button part, and a main body cover for receiving the outer layer body from the lower opening, and the lower opening The double container with an outer case according to claim 1, further comprising a lower cover that is attached to the main body cover and surrounds the outer layer body.   The outer case includes an operation member having a base portion accommodated in the main body cover, and a plate-shaped portion having one end portion connected to the base portion and the other end portion connected to the button portion as the connection portion. The double container with an outer case according to claim 2 or 3.   3. The connecting portion is configured such that one end portion is integrally connected to the main body cover and the other end portion is integrally connected to the button portion in a state where the button portion is exposed from the window hole. Or the double container with an outer case as described in 3. A volume-reducible inner layer body that contains the contents, an outer layer body that has the inner layer body inside and has a flexible body, and a spout for pouring the contents contained in the inner layer body In a double container comprising a pouring cap attached to the mouth of the outer layer body,
A double container with an outer case, comprising an outer case for housing the outer layer body, the outer case having a window hole capable of pressing the barrel. A volume-reducible inner layer body that contains the contents, an outer layer body that has the inner layer body inside and has a flexible body, and a spout for pouring the contents contained in the inner layer body In a double container with an outer case comprising a double container comprising a pouring cap attached to the mouth of the outer layer body, and an outer case containing the outer layer body,
The trunk portion has a convex portion protruding outward, and the outer case is a double container with an outer case having a window hole for exposing the convex portion.

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