JP5314069B2 - Refill container, gusset bag opening device and refill container set - Google Patents

Description

  The present invention relates to a refill container capable of opening a gusset bag containing contents such as powdered milk and refilling the whole bag, and opening the gusset bag when the opened gusset bag is stored in the container body of the refill container. The present invention relates to a spreader and a refill container set that can be opened in a container body with a mouth opened smoothly and accurately.

  2. Description of the Related Art Conventionally, contents such as powdered milk are supplied to the distribution market as a sealed package filled in a can. The can comes with a lid with an open / close lid. After opening the can, put the lid with the open / close lid on the can and open / close the lid to take out the contents in the can. Yes (see, for example, Patent Document 1).

  Some containers for storing sprinkles and the like are such that the bags containing the sprinkles and the like are opened and then stored together with the bags in the container main body, and the opening of the container main body is covered with a lid with an opening / closing lid. This container prevents the contents from falling into the container body when the contents are swung out from the container by sandwiching the edge of the bag opening at the fitting part between the lid with the lid and the container body. (For example, refer to Patent Document 2).

Japanese Patent No. 4219205 Utility Model Registration No. 2554822

  Since the former is a disposable packaging body among the above prior arts, there is a problem that disposal of cans after consuming the contents is troublesome.

  Since the latter package can be made of plastic other than metal, paper, etc., disposal of the container body, bags, etc. after consuming the contents is easy. In addition, the container body and the lid with an open / close lid can be reused by replacing the empty bag with a new one containing the contents.

  However, the latter package has the opening edge on the container body side together with the entire periphery of the opening of the bag and the lid side with the opening / closing lid while holding the expanded state with the fingers extending the entire periphery of the opening of the soft bag. Therefore, the operation for mounting the bag in the container body or replacing the bag with a new one is extremely troublesome. In addition, when the bag is installed in the container body, a part of the periphery of the bag opening may be left inside the container body, in which case the contents are removed from the left part of the bag and the container body. There is a problem of getting in between. Furthermore, when the bag is mounted in the container main body, it is necessary to support the opening of the bag with a finger, and there is a problem that the finger enters the bag and contacts the contents, which is unsanitary.

  Therefore, an object of the present invention is to provide a refill container, a gusset bag opening opening spreader, and a refill container set that can solve the above problems.

  In order to solve the above problems, the present invention employs the following configuration.

  In addition, in order to make an understanding of this invention easy, the referential mark of drawing is attached | subjected, but this invention is not limited to this.

That is, the invention according to claim 1 includes a bag (1) containing the contents (a), a container body (2) into which the bag (1) is inserted, and an opening of the container body (2). A filling member (3) for opening the opening (1e) of the bag (1) when fitted into the bag, and an opening / closing lid (4) for opening and closing the opening of the container body (2). In the replacement container, the bag (1) is a gusset bag in which a polygonal opening (1e) is formed by opening, and the expansion member (3) is mounted on the opening of the container body (2). Each of the outward notches (1c) is expanded while entering the outward notches (1c) in the opening (1e) of the gusset bag (1) stored in the container body (2). When the first guide part (15) to be mounted and the opening of the container body (2) of the expanding member (3) are completed The open mouth to guide the inner periphery of the (1e) the unsealing opening second guide portion for expanding the (1e) in a fully equipped configuration (17), comprising a said first guide section (15) A refill container in which an escape portion (16) that allows passage of the inward notch portion (1d) of the opening (1e) when the opening (1e) is expanded by the opening member (3) is employed. .

  The said outward notch part means the part which the crease | fold of the sheet | seat which comprises a gusset bag protruded in the V shape outside the opening (1e).

  The content (A) can be a dairy product. For dairy products, “Milk”, “dairy products” and “milk or dairy products” in “Ministerial Ordinance on Milk and Dairy Product Component Standards (Milk Ordinance): Ministry of Health and Welfare Ordinance No. 52 December 27, 1951” Foods made mainly of milk, processed milk, milk drinks, fermented milk, ice cream, ice milk, lacto ice, cheese, prepared powdered milk, whole milk powder, skimmed milk powder, condensed milk, etc. This refill container can pack any dairy product.

  However, the present invention is suitable for a dairy product that is eaten for a long time after the container is opened, and as such a dairy product, a dairy product in a powder form, that is, powdered milk is preferable, and the effect of the present invention can be fully enjoyed. be able to.

  In addition, powdered milk, powdered milk, instant creamy powder, whey powder, buttermilk powder, sweetened powdered milk and the like are included in addition to powdered milk powder, whole milk powder, skim milk powder, and the like.

  The said inward notch part means the part which the crease | fold of the sheet | seat which comprises a gusset bag protruded in the V shape inside the opening (1e).

As described in claim 2 , in the refill container according to claim 1 , a hook-shaped guide portion (16a) in contact with the inward notch portion may be provided at the back of the escape portion.

As described in claim 3 , in the refill container according to claim 1 or claim 2 , the second guide portion (17) of the expansion member (3) is formed of the container body (2). It can extend in a wall shape along the entire inner periphery of the opening.

As described in claim 4 , in the refill container according to any one of claims 1 to 3 , the expansion member (3) is fitted with the opening of the container body (2). And the opening / closing lid (4) is fitted into the opening of the container body (2) from above the fitting portion (8) of the expanding member (3). It can have part (9).

As described in claim 5 , in the refill container according to claim 4 , the measuring instrument (18) can be placed on the inner peripheral side of the fitting portion (8) in the expanding member (3). An annular horizontal wall (14) may be provided.

As described in claim 6 , in the refill container according to claim 4 or 5 , the fitting part (8) of the expansion member (3) is wound with a measuring tool (18). It can be assumed that a scraper (19) for scraping the contents (a) is bridged.

In the invention, the first guide for expanding the Kakusoto orientation notch while entering the outward notch portion (1c) (1c) in the open mouth of the gusset bag (1) (1e) according to claim 7 When the part (15) and the first guide part (15) completely enter the opening (1e) of the gusset bag (1), the opening is guided by guiding the entire inner periphery of the opening (1e). A second guide part (17) that expands the mouth (1e) into a well-formed shape, and the opening (1e) when the opening (1e) is opened by the first guide part (15) A gusset bag opening opening spreader provided with a relief portion (16) that allows passage of the inward notch portion (1d) is adopted.

The invention according to claim 8 is a bag containing contents, a container main body into which the bag is inserted, and an expansion member that expands the opening of the bag when fitted into the opening of the container main body. And an opening / closing lid that opens and closes the opening of the container body, the bag is a gusset bag in which a polygonal opening is formed by opening, and the expanding member is A first guide part for expanding each outward notch part while invading into the outward notch part in the opening of the gusset bag stored in the container body when mounted on the opening of the container body; when mounting to the opening of the container body of the expanding element is completed by guiding the inner peripheral edge of the opening port anda second guide portion for expanding to shape appointed the opening port , Inward opening of the opening when the opening is opened by the first guide part Relief portion for allowing the passage of the notch portion to adopt refill container set provided in the expanding member.

  According to the present invention, the bag (1) containing the contents (a), the container body (2) into which the bag (1) is inserted, and the opening of the container body (2) In a refill container comprising: an expansion member (3) for expanding the opening (1e) of the bag (1); and an opening / closing lid (4) for opening and closing the opening of the container body (3). The bag (1) is a gusset bag in which a polygonal opening (1e) is formed by opening, and when the expanding member (3) is attached to the opening of the container body (2), A first expansion of each outward notch (1c) while entering the outward notch (1c) in the opening (1e) of the gusset bag (1) accommodated in the container body (2). When the attachment of the guide part (15) and the opening member (3) to the opening of the container body (2) is completed, the opening (1 ) And the second guide portion (17) that expands the opening (1e) into a well-shaped shape by guiding the inner peripheral edge of the gusset bag. When (1) is stored in the container body (2), the opening (1e) of the gusset bag (1) is in a polygonal half-open state in the opening of the container body (2). Therefore, when the spreading member (3) is applied to the opening (1e) of the gusset bag (1) in the opening of the container body (2), the first guide (15) is first opened by the opening (1e). The outer notches (1c) are expanded to expand the outward notches (1c), and then the second guide portion (17) guides the inner peripheral edge of the opening (1e). The opening (1e) is expanded and held in a well-formed shape. Therefore, the opening opening (1e) of the gusset bag (1) is widened easily and quickly into a shape that is arranged in the opening of the container body (2), and a new gusset bag (1 ) Can be opened and mounted in the container body (2), or the gusset bag (1) in which the contents (a) have been consumed can be replaced with a new one.

  Moreover, since it is not necessary to open the opening (1e) of the gusset bag (1) with a finger or the like when refilling, it is possible to prevent the finger or the like from entering the gusset bag (1), and therefore, the sanitary hygiene In particular, the refill gusset bag (1) can be loaded into the container body (2).

  Moreover, the escape part (16) which permits passage of the inward notch part (1d) of the opening (1e) when the opening (1e) is expanded by the first guide part (15) is an expansion member (3). When it is provided, the opening (1e) of the gusset bag can be more smoothly spread. That is, the first guide portion (15) penetrates into each outward notch portion (1c) of the opening (1e), and the outward notch portion (1c) expands at the same time as the inward notch portion expands. At this time, since the escape portion (16) does not hinder the movement of the inward notch portion, the opening of the opening (1e) smoothly proceeds.

  Moreover, when the 2nd guide part (17) of the said expansion member is extended in a wall shape so that the whole inner periphery of the opening part of the said container main body (2) may be extended, a gusset bag (1) The opening (1e) can be placed between the opening of the container body (2) over the entire periphery thereof, so that the content (a) such as powdered milk in the gusset bag (1) is contained in the container body (2). And the gusset bag (1) can be prevented from leaking.

It is a top view of the refill container which concerns on this invention. FIG. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1. It is a partial notch figure of the hinge part of a refill container. It is a top view of a container main body. In FIG. 5, it is a VI-VI arrow directional cross-sectional view. FIG. 6 is a cross-sectional view taken along line VII-VII in FIG. 5. It is a top view of an opening-and-closing lid. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. FIG. 9 is a cross-sectional view taken along line XX in FIG. It is the perspective view which looked at the expansion member from diagonally upward. It is the perspective view which looked at the expansion member from diagonally downward. It is a top view of an expansion member. FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. 13. FIG. 15 is a cross-sectional view taken along line XV-XV in FIG. 13. (A), (B), and (C) are perspective views showing the expanding action of the opening of the gusset bag by the expanding member as viewed obliquely from above. (A), (B), and (C) are perspective views showing the expansion action of the opening of the gusset bag by the expansion member when viewed obliquely from below. The gusset bag for refilling is shown, (A) is a perspective view shown in an unopened state, and (B) is a perspective view shown in an opened state.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 4, the refill container includes a refill gusset bag 1 in which contents a are placed, a container body 2 into which the gusset bag 1 is inserted, and an opening of the container body 2. And an opening / closing lid 4 that opens and closes the opening of the container body 2.

  The refill gusset bag 1 is sealed as shown in FIG. 18A after storing the contents a before refilling. In FIG. 18 (A), the code | symbol 1a shows the sealing part by heat seal etc., and the code | symbol 1b shows a cutting plan line. The contents are, for example, milk powder that is a dairy product.

  The gusset bag 1 is opened by cutting the sealing portion 1a on the planned cut line 1b during refilling. As shown in FIG. 18B, a polygonal opening 1e is formed in the gusset bag 1 by opening. The opening 1e initially has outward notches 1c at the four corners, and inward notches 1d are formed between the two pairs of outward notches 1c.

  The opened gusset bag 1 is stored in the container main body 2 in the opened state shown in FIG.

  As shown in FIGS. 5 to 7, the container body 2 is formed in a substantially rectangular parallelepiped box as a whole including front and rear walls 2a and 2b, left and right walls 2c and 2d, and a bottom wall 2e. As shown in FIGS. 2 and 3, the opened gusset bag 1 or the unopened gusset bag 1 can be stored from the opening of the box.

  On the outer periphery of the opening of the container body 2, a fitting protrusion 5, an upper rib 6, and a lower rib 7 are provided in this order from top to bottom. As shown in FIGS. 2 and 3, the fitting protrusion 5 is fitted with the fitting protrusion 8 a of the fitting portion 8 when the fitting portion 8 of the spreading member 3 covers the opening of the container body 2. Is possible. As shown in FIG. 2, the lower rib can contact the lower edge of the fitting portion 8 of the expanding member 3, and the lower rib 7 can contact the lower edge of the fitting portion 9 of the opening / closing lid 4. Is possible.

  A bracket 10 for forming a pair of hinges is provided on the rear wall 2b of the container body 2. As shown in FIGS. 1 and 3, the hinge shaft 11 of the opening / closing lid 4 can be connected to the bracket 10. The hinge comprising the bracket 10 and the hinge shaft 11 can be formed integrally with the container main body 2 and the opening / closing lid 4 by being connected with a thin portion, for example. Further, the hinge can be provided between the spreading member 3 and the opening / closing lid 4.

  As shown in FIGS. 8 to 10, the open / close lid 4 includes a top plate 12 and a fitting portion 9 made up of inner and outer double peripheral walls 9 a and 9 b that hang from the top plate 12.

  As shown in FIGS. 1 to 3, the fitting portion 9 of the opening / closing lid 4 is fitted into the opening of the container body 2 from above the fitting portion 8 of the expanding member 3. That is, when the opening of the container body 2 is closed by the opening / closing lid 4, the fitting portion 8 of the expanding member 3 fitted into the opening of the container body 2 enters between the inner and outer double peripheral walls 9a, 9b, Thereby, the three of the container main body 2, the expansion member 3, and the opening / closing lid 4 are united.

  Moreover, as shown in FIG.9 and FIG.10, the recessed part 4a is formed between the top plate 12 and the internal peripheral wall 9a. When the opening / closing lid 4 is opened as shown in FIG. 4 when the gusset bag 1 is refilled, the expanding member 3 is inserted into the recess 4a, and the fitting portion 8 of the expanding member 3 is fitted to the opening / closing lid 4. When the gusset bag 1 is opened by inserting it into the portion 9, the expanding member 3 can be temporarily placed.

  As shown in FIGS. 11 to 15, the expansion member 3 is formed as a gusset bag opening expansion device separate from the container body 2 and the opening / closing lid 4.

  The expanding member 3 is formed in a frame shape having a size that can match the opening of the container body 2. Then, as shown in FIGS. 1 to 3, the expansion member 3 is covered with the opening portion of the container body 2 and the fitting portion 9 of the opening / closing lid 4 on the outer peripheral side of the frame. A fitting portion 8 for integrating the container body 2 and the opening / closing lid 4 is provided.

  The inclined wall 13 is lowered from the inner peripheral side of the fitting portion 8 in the expanding member 3, and an annular horizontal wall 14 protrudes inward from the lower end of the inclined wall 13, and a gusset is formed on the inner periphery of the horizontal wall 14. An insert to the opening 1e of the bag 1 is provided in a generally funnel shape.

  This insert has first guide portions 15 respectively corresponding to outward notches 1c at the four corners of the opening 1e of the gusset bag 1 at the four corners of the substantially rectangular opening 3a at the center thereof. Between the part 15 and the said horizontal wall 14, it has the 2nd guide part 17 corresponding to the inner periphery of the opening 1e which expanded the gusset bag 1 completely.

  Further, at each center of the two short sides of the opening, there is a relief portion 16 that allows passage of the inward notch portion 1d of the opening 1e when the opening 1e is expanded by the first guide portion 15 as necessary. Provided.

  The lower surface of the escape portion 16 may be a guide portion that moves while being in contact with the inwardly extending notch portion 1d.

  The first guide portion 15 penetrates into each outward notch portion 1c of the opening 1e and the outward notch portion 1c expands. At the same time, the inward notch portion 1d begins to expand. Since the movement of the inward notch portion 1d is not hindered, the opening 1e is smoothly expanded.

  The opening 3a at the center of the insert is slightly smaller than the opening of the opening of the container body 2, and the content a is taken out through this opening.

  When the expanding member 3 is attached to the opening of the container main body 2 in which the opened gusset bag 1 is stored, first, as shown in FIGS. While the first guide portion 15 enters the outward notch portion 1c in the opening 1e of the gusset bag 1, each outward notch portion 1c is expanded simultaneously. As shown in FIGS. 16 (B) and 17 (B), each inward notch portion 1d also tries to expand at the same time, but the escape portion 16 avoids a collision associated with the movement of the inward notch portion 1d. Subsequently, as shown in FIGS. 16C and 17C, the second guide portion 17 guides the inner peripheral edge of the opening 1e and expands and holds the opening 1e in a well-formed shape. . At the same time, the fitting portion 8 of the spreading member 3 is fitted with the opening of the container body 2 as shown in FIGS. 2 and 3, and the spreading member 3 is integrated with the container body 2. Thus, the mounting of the expanding member 3 to the opening of the container body 2 is completed.

  In addition, between the 2nd guide parts 17 continues to the drooping wall 17a drooping from the horizontal wall 14, As a result, the 2nd guide part 17 is extended in the shape of a wall along the whole inner periphery of the opening part of the container main body 2. FIG. It will be. As a result, the entire inner peripheral edge of the opening 1e of the gusset bag 1 is shielded by the edge of the opening 3a of the spreading member 3, as shown in FIGS. At this time, the problem that the content a falls between the container body 2 and the gusset bag 1 is prevented.

  Further, as shown in FIGS. 1 and 2, the inclined wall 13 is provided on the inner peripheral side of the fitting portion 8, so that a concave portion is formed inside the inclined wall 13, and an annular shape is formed so as to continue to the inclined wall 13. A horizontal wall 14 is provided. As shown in FIGS. 1 and 2, a measuring tool 18 such as a spoon is placed on the horizontal wall 14.

  Further, as shown in FIGS. 11 to 15, the spreading member 3 is spanned with a slit 19 so as to cross the central opening 3 a. The contents “a” squeezed by the measuring tool 18 can be scraped off by the scraper 19.

  Further, a knob piece 20 projecting outward is provided on the periphery of the expanding member 3, that is, the fitting portion. The operator can easily attach / detach the expanding member 3 to / from the container body 2 or the like while holding the knob 20.

  Next, the operation of the refill container and the expansion member having the above-described configuration will be described.

  (1) The gusset bag 1 in which contents a such as powdered milk are stored is initially in a state where an opening 1e as shown in FIG. 18 (A) is sealed with a sealing portion 1a.

  The sealing portion 1a of the gusset bag 1 is opened as shown in FIG. 18B by being cut off on the planned cut line 1b. The opened gusset bag 1 is inserted into the container body 2. Alternatively, after the unopened gusset bag 1 is stored in the container main body 2, the sealed portion 1a is cut off to be opened.

  (2) The opening 1e of the gusset bag 1 is initially in a polygonal half-open state, and has four outward notches 1c and two inward notches 1d.

  The insertion part of the expansion member 3 is inserted into the opening 1e of the gusset bag 1 in the container body 2 by the operator.

  (3) As shown in FIGS. 16 (A) and 17 (A), first, the first guide portion 15 of the insert in the expanding member 3 is in the outward notch portion 1c in the opening 1e of the gusset bag 1. Each outward notch 1c is simultaneously expanded while invading.

  (4) Subsequently, as shown in FIGS. 16 (B) and 17 (B), the escape portion 16 allows the inward notch portion 1d to pass through the opening 1e. The provided hook-shaped guide portions 16a guide each inward notch portion 1d to the expanded state while contacting the inward notch portion 1d.

  (5) Further, as shown in FIGS. 16C and 17C, the second guide portion 17 guides the inner peripheral edge of the opening 1e and expands and holds the opening 1e in a well-formed shape. To do.

  (6) At the same time that the opening 1e of the gusset bag 1 is opened into a substantially rectangular shape by the second guide portion 17, the fitting portion 8 of the expanding member 3 is connected to the opening portion of the container body 2 as shown in FIGS. The expansion member 3 is integrated with the container main body 2.

  Thus, the operator's finger or the like does not touch the inside of the gusset bag 1, and the opening of the refill container is quickly mounted with the opening 1e of the gusset bag 1 fully opened.

  (7) In order to take out the contents a of the gusset bag 1, a measuring tool 18 such as a spoon is inserted into the gusset bag 1 through the opening 3 a of the expanding member 3, and the contents a are scooped. The contents a are removed and taken out of the container body 2.

  (8) Since the second guide portion 17 and the hanging wall 17a extend along the entire inner periphery of the opening of the container body 2, the entire inner periphery of the opening 1e of the gusset bag 1 is shown in FIGS. Thus, it is shielded from the opening edge of the spreading member 3. Thereby, when taking out the content a from the gusset bag 1, the malfunction that the content a falls between the container main body 2 and the gusset bag 1 is prevented.

  (9) After taking out the contents a, the opening / closing lid 4 is tilted toward the opening side of the container body 2 so that the fitting portion 9 of the opening / closing lid 4 is fitted to the fitting portion 8 of the expanding member 3 to open / close The inside of the gusset bag 1 can be kept sealed again by the lid 4.

  (10) When the contents a in the gusset bag 1 are consumed, the opening / closing lid 4 is opened, the expanding member 3 is removed from the container body 2, the empty gusset bag 1 is removed from the container body 2, and a new gusset bag 1 Is opened in the container body 2 by the same procedure as described above, and the opening 1e of the gusset bag 1 is opened by the expanding member 3, whereby the content a can be taken out.

  In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the summary of this invention. For example, in the embodiment, the content is powdered milk, but in addition to such a powder form, it can be various forms of food such as granules, granules, blocks, and pastes. In addition, the contents may be tablets, or may be in the form of pieces in which individual pieces are packaged. A bag containing the contents; a container main body into which the bag is inserted; an expansion member that expands the opening of the bag when fitted into the opening of the container main body; and an opening of the container main body. It is also within the scope of the present invention to configure as a refill container set combined with an open / close lid that opens and closes.

DESCRIPTION OF SYMBOLS 1 ... Gusset bag 1e ... Opening opening 1c ... Outward notch part 1d ... Inward notch part 2 ... Container main body 3 ... Expanding member 4 ... Opening / closing lid 4a ... Concave part 8, 9 ... Fitting part 15 ... First guide part 16 ... Escape part 16a ... Gutter-shaped guide part 17 ... Second guide part 18 ... Measuring tool 19 ... Slip-off a ... Contents

Claims (8)

A bag containing the contents; a container body into which the bag is inserted; an expansion member that expands the opening of the bag when fitted into the opening of the container body; and an opening of the container body In the refill container having an opening / closing lid that opens and closes the bag, the bag is a gusset bag in which a polygonal opening is formed by opening, and when the expanding member is attached to the opening of the container body A first guide portion that expands each outward notch portion while invading into an outward notch portion in the opening of the gusset bag accommodated in the container body, and the opening of the container body of the expansion member A second guide portion that guides the inner peripheral edge of the opening when the attachment to the portion is completed and expands the opening to a shape in which the opening is arranged , and the opening by the first guide portion There is a relief part that allows passage of the inward notch part of the opening when Refill container, characterized in that provided in the opening member. The refill container according to claim 1 , further comprising a hook-shaped guide portion in contact with the inward notch portion at the back of the escape portion. The refill container according to claim 1 or 2 , wherein the second guide portion of the expanding member extends in a wall shape so as to follow the entire inner periphery of the opening of the container body. Refill container. The refill container according to any one of claims 1 to 3 , wherein the expanding member has a fitting portion that fits into an opening of the container body, and the opening / closing lid is the expanding portion. A refill container having a fitting portion that fits into the opening of the main body from above the fitting portion. 5. The refill container according to claim 4 , wherein an annular horizontal wall on which a measuring instrument can be placed is provided on the inner peripheral side of the fitting portion of the expanding member. 6. The refill container according to claim 4 or 5 , wherein a cut-off material that scrapes off the contents squeezed with the measuring instrument is stretched over the fitting portion of the expanding member. container. A first guide portion that expands each outward notch portion while invading into an outward notch portion in the opening of the gusset bag, and the opening when the first guide portion enters the opening opening of the gusset bag. A second guide part that guides the inner peripheral edge of the mouth and expands the opening to a well-shaped shape, and an inward notch part of the opening when the opening is opened by the first guide part A gusset bag opening opening spreader characterized in that an escape portion is provided to allow passage of the gusset bag. A bag containing the contents; a container body into which the bag is inserted; an expansion member that expands the opening of the bag when fitted into the opening of the container body; and an opening of the container body In the refill container set combined with an open / close lid that opens and closes, the bag is a gusset bag in which a polygonal opening is formed by opening, and the expansion member is attached to the opening of the container body. A first guide portion that expands each outward notch portion while entering the outward notch portion in the opening of the gusset bag stored in the container body, and the container body of the expansion member by the guide the inner peripheral edge of the opening port when mounting is completed to the opening anda second guide portion for expanding to shape appointed the opening port, said first guide portion Allow passage of the inward notch of the opening when the opening is widened Refill container setting, wherein a relief portion is provided that.

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