Molding container

Abstract

To provide a molding container which has a bottom plate member at the bottom part of an inner container for storing content and an elevator mechanism for moving the bottom plate member upwardly and which is capable of easily and smoothly pushing up the bottom plate member so as to completely use all of the content with simple assembly of components constituting the elevator mechanism.SOLUTION: A molding container 1 according to the present invention comprises: a bottomed cylindrical inner container 2 into which content can be inserted; a bottom plate member 3 which is arranged inside the inner container 2 and is movable upwardly; a cylindrical outer container 4 which inwardly stores the inner container 2; and an elevator mechanism 5 for moving the bottom plate member 3 upwardly. The elevator mechanism 5 comprises: a belt member 6 for pushing up the bottom plate member 3; an uneven part 9 which is formed on a surface of the belt member 6; a belt delivery part 7 for delivering the belt member 6; and a first hole part 8 which is provided at the bottom part center of the inner container 2 and through which one end side 6a of the belt member 6 passes.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a molded container that pushes up a content placed inside an inner container. [Background technology]

[0002] As containers for holding contents such as cosmetics, double molded containers are often used, which are equipped with an inner container for holding the contents and an outer container for housing the inner container. However, the closer the contents such as cosmetics are to the bottom of the inner container, the more difficult it becomes to remove them, and users end up having to purchase the next product before they have used up the contents.

[0003] However, if the container is discarded without being used up, the unused part remains and cannot be effectively used. In this way, it is better for people to use up the contents, such as cosmetics, to the last drop, from the viewpoint of resources such as materials and the environment such as processing. In the past, molded containers were provided with a mechanism for pushing up the contents, so that the contents, such as cosmetics, can be used up to the last drop. Examples of molded containers with a mechanism for pushing up the contents are disclosed in Patent Documents 1 and 2, for example.

[0004] Patent Document 1 discloses a fixed-volume dispenser container that improves operability without increasing the number of components. In addition, an information display unit is provided on the outer surface, making it possible to check the amount of content dispensed or the remaining amount. The technology of Patent Document 1 uses the basic structure of conventional dispenser containers in terms of the components. In other words, the fixed-volume dispenser container of Patent Document 1 has a simple device configuration that can be conceived of by a person skilled in the art (see, for example, FIG. 1).

[0005] In Patent Document 2, the contents present between a fixed partition plate and a rotating partition plate provided in a container are compressed by rotating the rotating partition plate, and an appropriate amount of the contents is smoothly discharged from a discharge port provided on the upper surface of a lid. This Patent Document 2 makes it possible to rotate the rotating partition plate along the inner surface shape of the container while reliably maintaining airtightness. In addition, the discharge container of Patent Document 2 can be assembled simply by fitting and fixing all the components (see, for example, Figures 2 and 3). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-81188 A [Patent Document 2] Patent No. 4415412 Summary of the Invention [Problem to be solved by the invention]

[0007] Recently, due to environmental considerations, there is an increasing demand for containers that can be refilled or replaced. However, refilling only the contents is time-consuming and inconvenient. Therefore, containers that are composed of at least two parts and have a mechanism for replacing the empty container with a new one have been provided.

[0008] That is, there are inner containers (refill containers) in which contents such as cosmetics are loaded that are detachably stored in an outer container. In other words, the refill container is a storage container that can be inserted into and removed from the outer container.

[0009] In the case of a molded container equipped with a refill container, after the content is used up, the user removes the used refill container from the outer container and replaces it with a new refill container with the content loaded, thereby enabling the outer container to be reused. In other words, a molded container equipped with a refill container can address the issue of environmental loads, such as the mass disposal of plastic products.

[0010] Now, let us consider the problems with existing containers that dispense highly viscous contents. For example, products that use a screw structure, such as the fixed-amount dispenser container disclosed in Patent Document 1 and screw-type containers for lip balm, make it easy to adjust the amount dispensed, and even highly viscous contents can be dispensed with little force.

[0011] However, the fixed-volume dispenser of Patent Document 1 has a screw mechanism consisting of a spiral groove and a protrusion. The assembly method for this fixed-quantity dispensing container is as follows (1) to (4). (1): Assemble the lifting plate and center cylinder. (2): Attach the item joined in (1) to the outer tube. (3): (2) is assembled to the outer container. (4): Set the nozzle.

[0012] Thus, in step (3), the container must be assembled while engaging and rotating the spiral groove of the outer container (guide sleeve) and the protrusion of the middle tube (lifter sleeve) that constitutes the screw mechanism, which is cumbersome.

[0013] On the other hand, in the case of screw-type containers such as lip balm, there is a concern that the contents may leak from the screw part. In other words, there is a risk that the screw part may become dirty. In addition, there are few containers using a screw structure that are compatible with refill containers due to manufacturing costs, etc.

[0014] For products that use a belt to dispense the contents, for example, a flexible belt is attached to an inner container that contains the contents, and the inner container is stored in an outer container so that the belt is bent, and a lever connected to the belt is lowered so that the folded, bent belt moves inside the outer container and pushes up the inner container, dispensing the contents, the container is easy to assemble. However, containers that use this belt are often stick-shaped, and if the discharge port is small compared to the area to be pushed up, the lever operation becomes stiff and heavy, making them difficult to use.

[0015] In addition, as for products using a partition plate such as that in Patent Document 2, the assembly of the container is simple. However, in containers using this partition plate, the rotation of the inner plug and the movement of the partition plate are linked, and the contents are discharged all at once, making it difficult to adjust the amount of contents discharged and making it impossible to take out the required amount.

[0016] In addition, because it is necessary to rotate the rotating partition plate to apply pressure between the two partition plates, and because of the need for airtightness between the partition plates, the rotation operation may not be smooth, which may make it difficult to operate when dispensing the contents.

[0017] As mentioned above, there are various specifications and configurations for current high-viscosity discharge containers. Although each of these products has its advantages and disadvantages, there are still issues with either assembly or operability. There is a need for a container that can resolve these issues and has both assembly and operability.

[0018] Therefore, in consideration of the above problems, the present invention aims to provide a molded container which has a bottom plate member at the bottom of an inner container for accommodating contents, and a lifting mechanism for moving the bottom plate member upward, and which simplifies the assembly of the parts that make up the lifting mechanism, thereby allowing the bottom plate member to be easily and smoothly pushed up and enabling all of the contents to be used up. [Means for solving the problem]

[0019] In order to achieve the above object, the present invention provides the following technical solutions.

[0020] The molding container of the present invention comprises a cylindrical inner container with a bottom into which contents can be loaded, a bottom plate member disposed within the inner container and movable upwardly, an outer container that houses the inner container, and a lifting mechanism that moves the bottom plate member upwardly, wherein the lifting mechanism is characterized by comprising a belt member that pushes up the bottom plate member and a belt feed-out section that feeds out the belt member.

[0021] Preferably, the lifting mechanism includes the belt member, one end side of which abuts against the bottom plate member and pushes up the bottom plate member by lifting the one end side, a first hole portion provided in the center of the bottom of the inner container and through which one end side of the belt member passes, an uneven portion formed on the surface of the belt member, and the belt feed-out portion, which engages with the uneven portion to pay out the belt member and lift the one end side.

[0022] Preferably, a second hole portion communicating with the first hole portion is provided in the center of the bottom of the outer container, the belt member is flexible, one end side protrudes from the first hole portion and the second hole portion and abuts against the bottom plate member, and is disposed outside the outer container in a curved manner in a side view, and the belt delivery portion is formed on the outside of the bottom of the inner container and has one end and the other end. It is preferable that the end is a single turn spiral with a certain amount of offset to form a gap, and that the uneven portion is formed in a plurality of portions on the surface of the belt member and is arranged so as to enter and mesh with the gaps in the belt feed section.

[0023] Preferably, the belt member is a long member having a bendable portion in the middle of its longitudinal direction, and the bent portion is arranged to protrude from the first hole portion and the second hole portion so as to abut against the bottom plate member, and the uneven portion has a first uneven portion formed on one end side of the bent portion of the belt member and a second uneven portion formed on the other end side, and when the belt member is folded to provide the bent portion, the first uneven portion and the second uneven portion have different pitches that are offset by one crest when viewed from the side.

[0024] Preferably, when the inner container is not attached to the outer container, the belt member is free from the inner container, allowing the inner container to be attached and detached.

[0025] Preferably, the belt member is flexible, has one end protruding from the first hole portion and abutting against the bottom plate member, and is curved and positioned between the inner container and the outer container, the belt feed-out portion is formed on the inner wall surface of the outer container and is a multiple-winding spiral facing downward, and the uneven portion has at least one peak formed on the surface of the other end side of the belt member and is positioned so as to mesh with the belt feed-out portion. Effect of the Invention

[0026] According to the molded container of the present invention, a bottom plate member is provided at the bottom of the inner container for accommodating the contents, and a lifting mechanism is provided for moving the bottom plate member upward. By simplifying the assembly of the parts that make up the lifting mechanism, the bottom plate member can be pushed up easily and smoothly, and the contents can be used up entirely. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 is an exploded view showing a schematic diagram of a formed container of the present invention (first embodiment). [Diagram 2] 1A to 1C are cross-sectional views of a molded container of the present invention when disassembled (first embodiment). [Diagram 3]FIG. 1 is a cross-sectional view showing an outline of a molded container of the present invention when assembled (first embodiment). [Figure 4] FIG. 2 is a diagram showing an outline of a belt member and uneven portions (belt peaks). [Diagram 5] 10 is a diagram showing that the uneven portion of the belt member and the belt feed-out portion have a screw-like function when the forming container of the present embodiment is used. FIG. [Figure 6] 1A to 1C are diagrams illustrating an outline of a method for assembling the molded container of the present embodiment. [Figure 7] 1A to 1C are diagrams illustrating an outline of a method for operating the forming container of the present embodiment. [Figure 8] FIG. 2 is a schematic diagram showing a modified example of the first embodiment of the forming container of the present invention. [Figure 9] FIG. 4 is a diagram showing an outline of a modified example (belt member) of the first embodiment. [Figure 10] FIG. 2 is an exploded view showing the outline of a second embodiment of a formed container of the present invention. [Figure 11] FIG. 11 is a cross-sectional perspective view showing an outline of a forming container according to a second embodiment when it is assembled. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, an embodiment of a forming container according to the present invention will be described with reference to the drawings.

[0029] The embodiment described below is an example of the present invention, and the configuration of the present invention is not limited to this specific example. In addition, in order to make the drawings easier to understand, some of the components (e.g., a cap body, etc.) are omitted or drawn using virtual lines, etc.

[0030] In explaining this embodiment, a molding container 1 (high-viscosity dispensing container 1) that dispenses a highly viscous content will be taken as an example. The content may be viscous (e.g., cream-like). The content may also be solid. [First embodiment] 1 to 7 etc. show a forming container 1 according to a first embodiment of the present invention.

[0031] As shown in FIG. 1 and other figures, the molded container 1 of this embodiment is a bottomed cylindrical container formed by, for example, injection molding. In other words, the molding container 1 is a storage container that has a bottom and a cylindrical side wall provided so as to surround the bottom, and is open at the top.

[0032] As shown in Figures 1 to 3, the molded container 1 of the present invention is a sealable container and has an inner container 2 formed into a cylindrical shape with a bottom so that contents can be loaded into it, a bottom plate member 3 arranged within the inner container 2 and movable upwards, a cylindrical outer container 4 that houses the inner container 2 with the bottom plate member 3 inside, a cap body (not shown) that covers and seals the upper opening of the inner container 2, and a lifting mechanism 5 that moves the bottom plate member 3 upwards.

[0033] The lifting mechanism 5 is a characteristic mechanism of the present invention, and includes a belt member 6 that pushes up the bottom plate member 3, and a belt delivery section 7 that delivers the belt member 6. More specifically, the lifting mechanism 5 includes the belt member 6, one end side 6a of which abuts against the bottom plate member 3 and lifts the one end 6a, a first hole section 8 that is provided in the center of the bottom of the inner container 2 (refill container) and through which the one end 6a of the belt member 6 penetrates, an uneven section 9 formed on the surface of the belt member 6, and the belt delivery section 7 that engages with the uneven section 9 to pay out the belt member 6 and lift the one end 6a. The lifting mechanism 5 of this embodiment is provided in the inner container 2, the outer container 4, etc., and will be described in detail below.

[0034] 1, the inner container 2 is formed in the shape of a large wide-mouthed bottle and is capable of storing semi-solid or paste-like cosmetics, etc. In this embodiment, the inner container 2 is a replaceable refill container 2 that can be removed from the outer container 4.

[0035] The refill container 2 has a cylindrical body 10 with a bottom for containing cosmetics or the like, and a flange 11 provided on the upper part of the body 10. The body 10 has a bottom, a cylindrical side wall (inner wall) provided so as to surround the bottom, and an upper opening 12 that opens the upper side of the side wall.

[0036] The refill container 2 (body 10) has a certain depth in order to accommodate a predetermined amount of cosmetics, etc. A male screw portion 13 is provided around the upper outer wall of the refill container 2. In addition, a circular groove portion 14 is formed on the outer peripheral wall of the refill container 2.

[0037] The groove 14 is adapted to engage with a claw 26 formed on the inner wall surface of the container 21, which will be described later. By engaging the claw 26 with the groove 14, the refill container 2 is supported rotatably within the outer container 4 (container 21) when contained therein.

[0038] The flange 11 is provided so as to protrude outward from the upper opening 12. The flange 11 of the refill container 2 engages with a flange 24 provided on a housing 21 constituting the outer container 4, whereby the refill container 2 is supported by the housing 21.

[0039] In this embodiment, an inner lid body 15 (inner plug 15) is attached to the top of the refill container 2. A female screw portion 16 is formed around the inner wall of the inner lid body 15. The male screw portion 13 provided on the refill container 2 is screwed into the female screw portion 16 to close the upper opening 12 of the refill container 2. In addition, the inner lid body 15 can be attached and detached to the refill container 2 by releasing the screwing between the male screw portion 13 and the female screw portion 16. However, the inner lid body 15 can also be fixed to the refill container 2 by forced fitting or the like.

[0040] A discharge port 17 is provided in the center of the inner lid body 15, which allows the inside of the refill container 2 to communicate with the outside and allows the contents to be discharged to the outside.

[0041] As shown in Figs. 1 to 3, the bottom plate member 3 (lift plate 3) is a disk member that is disposed at the bottom of the refill container 2 (body portion 10) and can move upward. The bottom plate member 3 has approximately the same shape and area as the bottom of the refill container 2. In more detail, the bottom plate member 3 is slidable upward inside the refill container 2, so that the outer diameter of the bottom of the refill container 2 is slightly smaller than the outer diameter of the bottom of the refill container 2.

[0042] A convex portion 3a that protrudes freely is provided at the center of the back surface of the bottom plate member 3. A concave portion 18 is provided in the convex portion 3a. One end 6a of the belt member 6 described below abuts against this concave portion 18. When the belt member 6 is unwound, the belt member 6 passes through the first hole portion 8 and one end 6a rises, so that the bottom plate member 3 moves upward by the belt member 6 via the concave portion 18, pushing up the contents.

[0043] A first hole 8 constituting the lifting mechanism 5 of the present invention is provided in the center of the bottom of the refill container 2. In this embodiment, a convex portion 19 that protrudes upward is formed in the center of the flat bottom of the refill container 2.

[0044] The protrusion 19 is shaped like a floating island having a predetermined outer diameter, and has a first hole 8 penetrating through its center. In other words, the protrusion 19 is a cylindrical member having the first hole 8. The protrusion 19 also serves as a support portion 19 that supports the bottom plate member 3 at a predetermined height on the bottom side of the refill container 2.

[0045] The first hole 8 is a hole that penetrates the bottom of the refill container 2 in the vertical direction. The first hole 8 has a predetermined inner diameter. In other words, the first hole 8 communicates the inside of the refill container 2 with the housing body 21 side of the outer container 4.

[0046] One end 6a of the belt member 6 constituting the lifting mechanism 5 penetrates through the first hole 8. When the forming container 1 is assembled, a second hole 31 (protrusion 33) provided in the bottom of the container 21 (details of which will be described later) penetrates through the first hole 8.

[0047] Meanwhile, a belt-feeding part 7 constituting the lifting mechanism 5 of the present invention is provided on the outside of the bottom of the refill container 2. This belt-feeding part 7 is formed in a substantially circular ring shape like the base of a teacup, and is provided so as to surround the first hole 8. The belt-feeding part 7 is formed to protrude downward from the outside of the bottom of the refill container 2 to a predetermined height.

[0048] The belt-delivering portion 7 is formed in a spiral (spiral) shape with at least one turn in a plan view. In this embodiment, the belt-delivering portion 7 is formed on the outside of the bottom of the refill container 2 (inner container 2) and is formed in a single spiral.

[0049] The belt-letting portion 7 has a generally circular shape like the base of a teacup, and has one end 7a and the other end 7b, which are offset by a certain amount. In this embodiment, the one end 7a of the belt-letting portion 7 is provided on the outer side of the diameter (see FIG. 5). The other end 7b of the belt-letting portion 7 is provided on the inner side of the diameter.

[0050] That is, in this embodiment, the belt feed-out portion 7 is not an endless circular ring, but a single-turn spiral whose diameter gradually decreases from one end 7a to the other end 7b. A gap 20 is formed between the one end 7a and the other end 7b. The size of the gap 20 is one pitch of the uneven portion 9 formed on the belt member 6 described later.

[0051] 4, the belt member 6 is a flexible, elongated member. One end 6a of the belt member 6 is arranged to protrude from the first hole 8 and the second hole 31 (details will be described later). One end 6a of the belt member 6 is arranged in contact with the bottom plate member 3.

[0052] The belt member 6 is disposed so as to pass through a side hole 30 (described in detail later) provided in the bottom of the container 21. The other end 6b of the belt member 6 is bent upward and fitted into a belt groove 27a (described in detail later) provided in the outer wall surface of the container 21. The other end 6b abuts against the lower surface of the flange 24 of the container 21. In other words, the other end 6b is disposed in a vertical state facing upward.

[0053] The belt member 6 is disposed outside the containing body 21 of the outer container 4, curved (U-shaped) in side view. The belt member 6 pushes up the bottom plate member 3 from one end 6a side. That is, one end 6a side of the belt member 6 is a pushing portion 6a that pushes up the bottom plate member 3.

[0054] A plurality of uneven portions 9 are formed on the surface (inner surface) of the belt member 6. The uneven portions 9 are arranged facing the container 21 arranged inside (the inner side of the outer container 4). The uneven portions 9 (belt threads) are arranged to enter and engage with gaps 20 provided in the elevated belt delivery section 7. The pitch of the uneven portions 9 is determined arbitrarily depending on the amount of lift of the bottom plate member 3, such as the amount of content discharged at one time. The height of the uneven portions 9 (threads) is determined arbitrarily depending on the weight of the content, the material of the refill container 2 (belt delivery section 7), such as hardness, and the like.

[0055] When the refill container 2 is rotated, the plateau-shaped belt-delivering section 7 provided at the bottom of the refill container 2 rotates accordingly. One end 7a (the outer end in terms of diameter) of the belt-delivering section 7 is inserted between the uneven portions 9 formed on the inner side (surface) of the belt member 6. The belt-delivering section 7 rotates While rotating, it slides between the projections and recesses 9 and engages with the projections and recesses 9.

[0056] When the belt feed-out portion 7 rotates once, the belt member 6 is fed out by one pitch of the uneven portion 9 into the first hole portion 8. One end 7a of the belt feed-out portion 7 enters between the next uneven portion 9. In this manner, the belt feed-out portion 7 repeatedly engages while sliding between the uneven portions 9 of the belt member 6. One end 6a (extrusion portion 6a) of the belt member 6 is pushed upward from the first hole portion 8, and raises the bottom plate member 3 by one pitch of the uneven portion 9.

[0057] As shown in Figs. 1 to 3, the outer container 4 is formed in a bottomed cylindrical shape and has a wide-mouthed bottle shape into which the inner container 2 (in this embodiment, the refill container 2) is fitted from the outside to accommodate it. In this embodiment, the outer container 4 is a divided body consisting of an inner and outer side, and has a container 21 that accommodates the refill container 2, and a cover body 22 that accommodates the container 21. Note that, although the outer container 4 is a divided body in this embodiment, it may be an integrated container.

[0058] The container 21 is formed in the shape of a wide-mouthed bottle that is larger than the refill container 2. The container 21 has a cylindrical body 23 with a bottom that houses the refill container 2, and a flange 24 provided on the upper part of the body 23.

[0059] The body 23 has a bottom, a cylindrical side wall (inner wall) surrounding the bottom, and an upper opening 25 that opens at the top of the side wall. The container 21 has a certain depth for containing the refill container 2. The flange 24 is provided to protrude outward from the upper opening 25. The flange 24 supports the refill container 2 when contained by engaging with the flange 11 of the refill container 2.

[0060] Moreover, claws 26 are formed at equal intervals on the inner wall surface of the container 21. The claws 26 are adapted to engage with annular grooves 14 formed on the outer peripheral wall of the refill container 2. By engaging the claws 26 with the grooves 14, the refill container 2 is rotatably supported within the outer container 4 (container 21) when contained.

[0061] Positioning portions 27 that are long and protrude in the vertical direction are formed on the outer peripheral wall of container 21. Positioning portions 27 have a length corresponding to long groove portions 38 formed on the inner peripheral wall of cover 22. In this embodiment, four positioning portions 27 are provided on the outer peripheral wall of trunk 23 at equal intervals (every 90°). Positioning portions 27 are members that determine the position of container 21 when it is contained within cover 22. Positioning portions 27 are guided by long groove portions 38 of cover 22, thereby determining the position of container 21 (orientation within cover 22).

[0062] As shown in Figs. 1, 5, etc., one of the positioning portions 27 is a groove 27a that is wider than the other three. This wide long groove portion 27a is a belt groove 27a that guides the belt member 6. The belt groove 27a has a width that allows the belt member 6 to fit into it. That is, the belt groove 27a is provided with a pair of left and right protruding pieces at a predetermined interval, and the belt member 6 is arranged in the groove between them so as to be slidable in the up and down direction. The belt groove 27a fits into a guide groove 38a provided in the inner peripheral wall of the cover 22.

[0063] In other words, the belt groove 27a has a groove that guides the belt member 6 constituting the lifting mechanism 5 when it is being unwound. The belt groove 27a guides the belt member 6 downward when it is being unwound. The belt groove 27a also serves as a positioning member for the container 21.

[0064] 2, 3, etc., when viewing the bottom of container 21 from the outside, a circular protrusion 28 is formed on the outside of the bottom. The outer diameter of protrusion 28 is smaller than the outer diameter of body 23, and when container 21 is viewed from the side, the outer side is cut out. This cut-out shape avoids contact with rib-shaped guide piece 39a provided on the bottom of cover 22.

[0065] The center of the protrusion 28 is a recess 29. In other words, the protrusion 28 is doughnut-shaped. The recess 29 avoids contact with a rib-like guide piece 39b provided on the bottom of the cover 22. The protrusion 28 is provided with a side hole 30 through which the belt member 6 passes.

[0066] The side hole 30 is provided below the belt groove 27a, penetrates the protrusion 28 in the horizontal direction, and communicates with a recess 29 provided in the bottom of the housing 21. The side hole 30 also communicates between the outside of the housing 21 and the inside of the body 23 (annular groove 32).

[0067] On the other hand, when looking at the bottom from inside the housing 21, a second hole portion 31 constituting the lifting mechanism 5 of the present invention is provided in the center of the bottom of the housing 21. In this embodiment, a circular groove portion 32 is provided in the bottom of the housing 21.

[0068] The annular groove 32 is adapted to receive the elevated, spiral (volute) belt-feeding portion 7 provided on the outer bottom surface of the refill container 2. In other words, the annular groove 32 has a larger diameter and depth (height) than the belt-feeding portion 7. The belt member 6 (concave-convex portion 9) is disposed in the annular groove 32.

[0069] Furthermore, a convex portion 33 that protrudes upward is formed in the center of the annular groove portion 32 (the center of the bottom of the container 21). The convex portion 33 is shaped like a floating island, and a second hole portion 331 is provided through the center. In other words, the convex portion 33 is a cylindrical member provided with the second hole portion 31. Furthermore, the annular groove portion 32 is formed into a doughnut shape. Furthermore, the convex portion 33 serves as a support portion that supports the refill container 2.

[0070] This protrusion 33 (at the center of the bottom of the outer container 4 (containing body 21)) is provided with a second hole 31 that communicates with the first hole 8. The second hole 31 is a hole that penetrates the bottom of the containing body 21 in the vertical direction. The second hole 31 puts the inside of the containing body 21 of the outer container 4 in communication with the cover body 22 side.

[0071] One end 6a side (extrusion portion 6a) of the belt member 6 is disposed to penetrate through this second hole portion 31. That is, the convex portion 33 is disposed to penetrate through the first hole portion 8 when the forming container 1 is assembled. Note that the second hole portion 31 in this embodiment is a rectangular hole portion that is slightly larger than the belt member 6.

[0072] The cover body 22 is formed in the shape of a wide-mouthed bottle that is larger than the container 21. The cover body 22 has a cylindrical body 34 with a bottom that houses the container 21, and a shoulder 35 provided on the upper part of the body 34.

[0073] The body 34 has a bottom, a cylindrical side wall (inner wall) provided so as to surround the bottom, and an upper opening 36 where the upper side of the side wall is open. The body 34 has a certain depth for accommodating the container 21. The shoulder 35 supports the refill container 2 when it is accommodated by engaging with the flange 24 of the container 21.

[0074] The cover 22 covers and houses the outer surface of the container 21. The outer container 4 consisting of the cover 22 and the container 21 is integrated with the refill container 2 by covering and housing the outer surface of the refill container 2. That is, the molded container 1 of this embodiment is a container having a triple-wall structure.

[0075] A male screw portion 37 is provided around the upper outer wall of the cover body 22. The male screw portion 37 screws into a female screw portion provided in a cap body (not shown), thereby closing the inner lid body 15 (inner plug 15) of the refill container 2 and maintaining the hermeticity of the molded container 1. In addition, the cap body (outer plug) can be attached and detached to the outer container 4 (molded container 1) by releasing the screw engagement between the male screw portion 37 and the female screw portion.

[0076] As shown in Figs. 1, 5, etc., long grooves 38 are formed in the inner peripheral wall of covering body 22 in the vertical direction. Four long grooves 38 are provided at equal intervals (every 90°) on the inner peripheral wall of body 34. Long grooves 38 guide positioning portions 27 formed on the outer peripheral wall of housing body 21, thereby determining the position of housing body 21 (the orientation within covering body 22). In other words, long grooves 38 are positioning members when housing body 21 within covering body 22.

[0077] One of the long grooves 38 is a groove 38a that is wider than the other three. This wide long groove 38a, together with the belt groove 27a provided on the outer wall surface of the housing 21, serves as a guide groove 38a that guides the belt member 6 when it is unwound. In other words, the guide groove 38a corresponds to the belt groove 27a, and guides the belt member 6 downward when it is unwound. The guide groove 38a also serves as a positioning member for the housing 21 within the cover 22.

[0078] A rib-like guide piece 39 is provided on the bottom of the cover 22. The guide piece 39 guides the belt member 6 when it is being unwound. The guide piece 39 in this embodiment is made up of a guide piece 39a formed on the guide groove 38a side and a guide piece 39b formed in the center of the bottom of the cover 22. It consists of:

[0079] Specifically, the guide piece 39a is formed in a protruding shape at the lower part of the guide groove 38a corresponding to the belt groove 27a and at the bottom part of the cover body 22 connected to the guide groove 38a. The guide piece 39a is substantially triangular in side view, and the oblique side descending from the guide groove 38a toward the center of the bottom part of the cover body 22 is recessed downward at an R.

[0080] Guide piece 39b has a mirror image of guide piece 39a and is provided at the center of the bottom of cover 22 opposite guide piece 39a. Guide piece 39b is substantially triangular in side view, and the oblique side extending from the apex of guide piece 39b to the outside of the bottom (toward guide groove 39a) is recessed downward with a radius of R.

[0081] That is, the guide pieces 39a and 39b are provided so as to form a substantial U-shape. The guide pieces 39 smoothly guide the belt member 6, which is provided in a U-shape when the forming container 1 is assembled, during unwinding.

[0082] One end 6a of the belt member 6 is inserted into the side hole 30 and passes through the side hole 30 toward the recess 29. The belt member 6 is bent so as to face upward toward a second hole 31 provided in a protrusion 33 on the upper part of the recess 29, and one end 6a is disposed so as to protrude from the second hole 31.

[0083] The other end 6b of the belt member 6 is fitted into a belt groove 27a provided on the outer wall surface of the container 21. When the container 21 equipped with the belt member 6 is fitted into the cover 22, the belt member 6 is supported from the outside by the guide groove 38a and the guide pieces 39a, 39b of the cover 22. In this way, the belt member 6 is arranged in a U-shape (at the start of use, it is a J-shape with one end 6a lower than the other end 6b) in a side cross-sectional view of the forming container 1.

[0084] The belt member 6 is arranged in an approximately U-shape between the container 21 and the cover 22 by the belt groove 27a and side hole portion 30 of the container 21 and the guide groove 38a and guide pieces 39a, 39b of the cover 22, and is smoothly guided when the belt member 6 is unwound. <About the function of screws> Here, the relationship between the concave-convex portion 9 of the belt member 6 and the belt-delivering portion 7 as a screw when the molding container 1 is used will be described with reference to FIG.

[0085] As shown in the left diagram of Figure 5, before the refill container 2 is set in the container 21 (outer container 4), the belt member 6 is sandwiched between the covering body 22 and the container 21, and part of the belt member 6 is visible.

[0086] As shown in the central diagram of Figure 5, after the refill container 2 is set in the container body 21 (outer container 4), the belt feed-out portion 7, which is shaped like a hill and provided at the bottom of the refill container 2, engages with the uneven portion 9 (belt peak) of the belt member 6.

[0087] As shown in the right diagram of Fig. 5, when the refill container 2 is rotated, for example, one end 7a of the spiral belt-feeding part 7 provided on the bottom of the refill container 2, which is provided on the outer diameter side, engages with the uneven portion 9 (belt mountain) of the belt member 6. When the refill container 2 is rotated 180 degrees, the belt-feeding part 7 slides on the belt member 6, and one end 7a of the belt-feeding part 7 engages with the next uneven portion 9, gradually feeding the belt member 6 to the second hole portion 31 and the first hole portion 8. This movement is the function of the screw.

[0088] That is, when the refill container 2 (belt-feeding portion 7) is rotated, the belt-feeding portion 7 provided at the bottom of the refill container 2 engages with the uneven portion 9 of the belt member 6, and the belt member 6 gradually moves toward the second hole portion 31 and the first hole portion 8. By repeatedly feeding out the belt member 6 in this manner, the belt-feeding portion 7 and the uneven portion 9 of the belt member 6 function as screws.

[0089] The bottom plate member 3 (lift plate 3) rises as the pushing portion 6a (one end 6a) of the belt member 6 is pushed upward. The contents in the refill container 2 are discharged to the outside from the discharge port 17 of the inner lid body 15 as the bottom plate member 3 rises. Once all the contents have been discharged and the refill container 2 has been used up, it is replaced with a new refill container 2 with the contents loaded.

[0090] In this way, the uneven portion 9 of the belt member 6 and the belt delivery portion 7 function as a screw, and when pushing up the bottom plate member 3 (lifting plate 3), a strong force like a screw acts. This allows the contents to be easily dispensed by simply rotating the refill container 2 with a light force. It is also easier to assemble than products (containers) that use a conventional screw structure. It is also easier to replace the refill. [Operation mode] Next, the operation of the forming container 1 of this embodiment will be described with reference to the drawings. <Assembly method> FIG. 6 shows steps (1) to (4) of the method for assembling the forming container 1 according to this embodiment.

[0091] (1) The belt member 6 is set by passing it through the side hole 30 of the container 21. That is, one end 6a of the belt member 6 is inserted into the side hole 30 provided in the bottom of the container 21. The belt member 6 passes through the protruding portion 28 toward the recessed portion 29, and the one end 6a is bent upward. The one end 6a of the belt member 6 passes through the second hole 31 provided in the convex portion 33, and is disposed in a vertical state facing further upward.

[0092] On the other hand, the other end 6b side of the belt member 6 is bent upward and fitted into a belt groove 27a provided on the outer wall surface of the housing body 21 and above the side hole portion 30. The other end 6b side abuts against the lower surface of the flange portion 24 of the housing body 21 and is disposed in a vertical state facing upward.

[0093] (2) The container 21 with the belt member 6 assembled in (1) is set in the cover 22. That is, the container 21 with the belt member 6 assembled is fitted into the cover 22 from the upper opening 36. Note that the other end 6b of the belt member 6 is held down with a finger since the belt member 6 tries to return to its original straight shape. In this embodiment, the belt member 6 is assembled while being held down with a finger, but it is possible to temporarily fasten the belt member 6 by attaching a protrusion or the like to the belt groove 27a. This also applies to the modified example of the first embodiment and the second embodiment described later.

[0094] Positioning portion 27 provided on the outer wall surface of container 21 is aligned with long groove portion 38 provided on the inner wall surface of covering body 22. Furthermore, belt groove 27a provided on the outer wall surface of container 21 is aligned with guide groove 38a provided on the inner wall surface of covering body 22. In this state, container 21 is inserted into covering body 22. The position (orientation) of container 21 within covering body 22 is determined and fixed.

[0095] At this time, the belt member 6 is supported from the outside by the guide groove 38a and the guide pieces 39a, 39b of the cover 22. In this manner, the belt member 6 is arranged in a U-shape in a side cross-sectional view of the forming container 1 (at the start of use, it is arranged in a J-shape with one end 6a side lower than the other end 6b side).

[0096] (3) The refill container 2 is assembled. That is, the bottom plate member 3 is inserted into the refill container 2 and placed on the bottom of the body 10. The bottom plate member 3 has a convex portion 3a provided at the center of the back surface inserted into a first hole portion 8 at the center of the bottom of the refill container 2, and is supported by a convex portion 19 provided at the bottom of the body 10. The contents are filled into the refill container 2. The upper opening 12 of the refill container 2 is blocked with an inner lid body 15 (inner plug 15) having a discharge port 17. After sealing with the inner lid body 15, a seal is applied to the top of the discharge port 17 to further seal the contents. After setting the refill container 2, the seal is peeled off before the user uses the contents.

[0097] (4) The refill container 2 (inner container 2) is set inside the container 21 (outer container 4) to assemble the molded container 1. That is, the assembled refill container 2 is inserted into the container 21 from the upper opening 25. As the refill container 2 is lowered, the belt-feeding part 7, which is shaped like a platform and provided at the bottom of the refill container 2, is inserted into the annular groove part 32 provided at the bottom of the container 21.

[0098] The belt feed-out portion 7 comes into contact with the uneven portion 9 of the belt member 6 located in the annular groove portion 32 and is engaged. In addition, one end side 6a of the belt member 6 comes into contact with a recess 18 provided below the bottom plate member 3. The bottom plate member 3 is capable of rising due to the contact of the belt member 6.

[0099] The refill container 2 is slidably disposed around the inner circumference of the container 21 and in the vertical direction, and is removable. A cap body (outer plug) is attached to the top of the outer container 4, but is not shown in the drawings.

[0100] In this way, the belt member 6 can be easily set by simply inserting it into the container 21. When assembling a container using a conventional screw structure, there is a step of assembling while rotating, but this step is not necessary in this embodiment, improving the ease of assembly. <How to operate> FIG. 7 shows steps (1) to (4) of the method for operating the forming container 1 according to this embodiment.

[0101] (1) The refill container 2 containing the contents is set inside the container 21, and the molded container 1 is in an assembled state. The bottom plate member 3 is supported by a protrusion 19 provided on the bottom of the refill container 2.

[0102] One end 6a of the belt member 6 passes through the second hole 31, and is placed vertically upward through the first hole 8. One end 6a of the belt member 6 abuts against a recess 18 provided below the bottom plate member 3. The abutment of the belt member 6 allows the bottom plate member 3 to rise.

[0103] The belt-feeding part 7, which is shaped like a hill and provided at the bottom of the refill container 2, is inserted into an annular groove 32 provided at the bottom of the container 21. The belt-feeding part 7 abuts against and engages with the uneven part 9 of the belt member 6 located in the annular groove 32. At this time, the belt member 6 is supported from the outside by the guide groove 38a and guide pieces 39a and 39b of the cover 22.

[0104] At the start of use, the other end 6b of the belt member 6 is in a state in which it extends upward within the belt groove 27a. That is, in a side cross-sectional view of the forming container 1, the one end 6a of the belt member 6 is disposed in a J-shape (inverted J-shape in the drawing) lower than the other end 6b.

[0105] (2) When the refill container 2 to which the inner plug 15 (inner lid body 15) is attached is rotated, the belt-feeding part 7, which is a hillock-shaped, single-turn spiral formed on the outside of the bottom of the refill container 2, rotates accordingly. One end 7a (the outer end in terms of diameter) of the belt-feeding part 7 enters between the uneven parts 9 formed on the inner side (surface) of the belt member 6. More specifically, the belt-feeding part 7 slides on the belt member 6 while rotating, and enters and engages with the uneven parts 9 (threads) (screw function).

[0106] As the refill container 2 continues to rotate, the belt-feeding portion 7 rotates in conjunction with the rotation of the refill container 2, and one end 7a of the belt-feeding portion 7 enters between the uneven portions 9. When the belt-feeding portion 7 makes one rotation, the belt-feeding portion 7 pushes the uneven portion 9 in the direction of the first hole portion 8 of the refill container 2.

[0107] The belt member 6 is gradually unwound by one pitch of the uneven portion 9 into the first hole portion 8. The pushed-out portion 6a (one end 6a) of the belt member 6 is pushed upward from the first hole portion 8, and lifts the bottom plate member 3 by one pitch of the uneven portion 9.

[0108] When the belt-feeding part 7 rotates once, the one end 7a enters between the next concave-convex portion 9. In this manner, when the refill container 2 continues to rotate, each of the concave-convex portions 9 continues to be pushed toward the first hole portion 8 of the refill container 2 by the belt-feeding part 7.

[0109] As a result, the rotating belt-feeding portion 7 slides and engages with the uneven portion 9, and the belt member 6 is repeatedly fed toward the first hole portion 8 of the refill container 2. One end 6a side (pushing portion 6a) of the belt member 6 advances toward the first hole portion 8 and the second hole portion 31 that are connected to each other, and protrudes from the first hole portion 8.

[0110] As one end side 6a of the belt member 6 protrudes from the first hole portion 8 of the refill container 2, one end 6a (pushing portion 6a) of the belt member 6 pushes up the bottom plate member 3. As the bottom plate member 3 (lifting plate 3) rises, the contents move upward within the container 21 and are discharged from the discharge port 17 of the inner plug 15.

[0111] It is also possible to easily adjust the amount of the contents dispensed by providing a ratchet mechanism or the like between the bottom of the refill container 2 and the bottom of the container 21. The same applies to the modified example of the first embodiment described later.

[0112] At this time, the belt member 6 has a substantially U-shape in side view with one end 6a raised between the housing body 21 and the cover body 22 by the belt groove 27a and the side hole portion 30 of the housing body 21 and the guide groove 38a and the guide pieces 39a, 39b of the cover body 22. With this configuration, the belt member 6 is smoothly guided when being unwound.

[0113] (3) When all the contents have been dispensed, the bottom plate member 3 reaches the highest position (upper opening 12) inside the refill container 2. At this time, the belt member 6 pushes up the bottom plate member 3 (lifting plate 3) to the maximum extent, and the belt member 6 and bottom plate member 3 do not move. The belt member 6 that has finished rising reaches the end position, and the refill container 2 has been used up.

[0114] When the belt member 6 is no longer in use, the one end 6a of the belt member 6 is extended upward from the first hole 8 and the second hole 31. That is, in a side cross-sectional view of the forming container 1, the belt member 6 has a J-shape in which one end 6a is higher than the other end 6b.

[0115] (4) The used refill container 2 is removed from the container 21. The belt member 6 is free to move up and down. It is possible to prevent the belt member 6 from coming off when the user uses it by providing a protrusion on the other end 6b. The same applies to the modified example of the first embodiment described later.

[0116] A new refill container 2 is inserted directly into the housing 21 and set for replacement. When the new refill container 2 is pushed into the housing 21 from above, the bottom plate member 3 does not move upward because the contents are already loaded into the refill container 2 and the discharge port 17 provided in the inner lid body 15 attached to the top of the refill 2 is further sealed.

[0117] Therefore, as soon as the refill container 2 is set in the container 21, the one end 6a of the belt member 6 drops, and the belt member 6 returns to the start-of-use position. In other words, the belt member 6 is arranged in an inverted J-shape with the one end 6a lower than the other end 6b in a side cross-sectional view of the molding container 1. This is the start-of-use position of the new refill container 2.

[0118] In this way, when the refill container 2 is not set in the container 21, the belt member 6 (uneven portion 9) does not function as a screw. In other words, when replacing the refill container 2, the belt member 6 is in a free state (can move up and down freely). This makes it possible to easily set a new refill container 2 in the container 21.

[0119] In summary, the belt member 6 (uneven portion 9) and the belt delivery portion 7 function as screws, so that the molding container 1 can be easily assembled by simply inserting and setting the belt member 6 into the container 21. When pushing up the bottom plate member 3 (lifting plate 3), a strong force like that of a screw is applied. As a result, the molding container 1 of this embodiment can be used with a simple operation of rotating the refill container 2 with light force.

[0120] In addition, since the belt member 6 (uneven portion 9) and the refill container 2 (belt delivery portion 7) have a screw mechanism, when the contents are ejected, a strong screw-like force acts between the uneven portion 9 and the belt delivery portion 7, making it possible to eject the contents easily and smoothly with a light force.

[0121] Furthermore, the molding container 1 of this embodiment does not require a step of assembling while rotating a screw, as is the case with conventional containers using a screw structure. This improves the ease of assembling the molding container 1. Furthermore, when the refill container 2 is not set in the housing 21, the belt member 6 is in a free state, making it easy to attach and detach the refill container 2. [Modification of the first embodiment] Fig. 8 shows an outline of a modified example of the first embodiment of the forming container 1 of the present invention. Fig. 9 shows an outline of a belt member 6 of the modified example.

[0122] As shown in Figures 8 and 9, the present modification is different from the first embodiment in the configuration of the lifting mechanism 5. That is, the present modification is different from the first embodiment in the shape of the belt member 6, such as the length and pitch. Note that other configurations of the forming container 1, the assembly method, the operation method, etc. are substantially the same as those of the first embodiment, and therefore detailed description thereof will be omitted.

[0123] As shown in Figures 8 and 9, the belt member 6 of this modified example is a long member that is bendable at the midpoint in the longitudinal direction. In this modified example, the belt member 6 is longer than that of the first embodiment (about twice as long). The belt member 6 is disposed so that the bent portion 6c protrudes from the first hole portion 8 and the second hole portion 31 so as to abut against the bottom plate member 3.

[0124] The belt member 6 is provided at the bottom of the container 21 and is disposed so as to penetrate each of the two opposing side holes 30. One end 6a of the belt member 6 is bent upward and fitted into a belt groove 27a provided in the outer wall surface of the container 21. The one end 6a abuts against the lower surface of the flange 24 of the container 21 and is disposed in a vertical state facing upward.

[0125] Similarly, the other end 6b of the belt member 6 is bent upward and fitted into a belt groove 27a provided on the outer wall surface of the housing body 21. The other end 6b abuts against the lower surface of the flange portion 24 of the housing body 21. In other words, the other end 6b is disposed in a vertical state facing upward.

[0126] The belt member 6 is disposed so that the bent portion 6c protrudes from the first hole portion 8 and the second hole portion 31. One end 6a and the other end 6b are curved (W-shaped) in a side view of the forming container 1 and disposed outside the container 21. That is, in this modification, the bent portion 6c side of the belt member 6 is a pushing portion 6c that pushes up the bottom plate member 3.

[0127] A plurality of uneven portions 9 are formed on the inner side (surface) of the belt member 6. The uneven portion 9 of this modification has a first uneven portion 9a formed on one end 6a side (tip side) of the bent portion 6c (extruded portion 6c) of the belt member 6, and a second uneven portion 9b formed on the other end 6b side (rear end side).

[0128] The first uneven portion 9a and the second uneven portion 9b are arranged at different pitches that are offset by one crest in a side view when the belt member 6 is bent to provide the bent portion 6c. In other words, the first uneven portion 9a and the second uneven portion 9b are formed so as to be alternated in a side view with the bent portion 6c provided. Note that, even in this modification, the belt feed-out portion 7 and the uneven portion 9 of the belt member 6 have a screw structure.

[0129] The belt member 6 is arranged so that the bent portion 6c protrudes from the first hole portion 8 and the second hole portion 31, and the bent portion 6c abuts against the recessed portion 18 of the bottom plate member 3. The belt member 6 is arranged in the container 21 (outer container 4) so ​​that, in a side cross-sectional view of the forming container 1, at the start of use, the bent portion 6c forms a W-shape that is lower than the one end 6a side and the other end 6b side.

[0130] Four positioning portions 27 are provided at equal intervals (every 90°) on the outer peripheral wall of the housing 21. In this modification, two of the positioning portions 27 are grooves 27a that are wider than the other two. These wide long groove portions 27a serve as belt grooves 27a that guide the belt member 6. The belt grooves 27a are provided at opposing positions (opposite sides) to accommodate the long belt member 6.

[0131] The belt member 6 on one end 6a side is slidably fitted into one of the belt grooves 27a from the bent portion 6c where the first uneven portion 9a is formed, and the belt member 6 on the other end 6b side is slidably fitted into the other of the belt grooves 27a from the bent portion 6c where the second uneven portion 9b is formed.

[0132] Four long grooves 38 are provided at equal intervals (every 90°) on the inner peripheral wall of the cover 22. Similarly, in this modification, two of the long grooves 38 are grooves 38a that are wider than the other two. These wide long grooves 38a serve as guide grooves 38a that correspond to the belt groove 27a. The guide grooves 38a are provided at opposing positions (opposite sides) to correspond to the belt groove 27a.

[0133] A rib-like guide piece 39 is provided on the bottom of the covering body 22. The guide piece 39 consists of a guide piece 39a formed on the guide groove 38a side and a guide piece 39b formed in the center of the bottom of the covering body 22. In this modification, two guide pieces 39a and two guide pieces 39b are provided, and they are provided at opposing positions (opposite sides) to correspond to the belt member 6. [Operation mode] Next, the operation of the forming container 1 of this modified example will be described with reference to the drawings. <Assembly method> 8, 9, etc., in this modification, the belt member 6 is set by passing it through the side hole 30 of the container 21. One end 6a of the belt member 6 is inserted into the side hole 30 provided in the bottom of the container 21. The belt member 6 is passed through the protrusion 28 toward the recess 29 and inserted into the other side hole 30. The one end 6a is passed through the other side hole 30 to the outside.

[0134] The belt member 6 is folded upward at its midpoint in the longitudinal direction. The bent portion 6c is caused to protrude from the first hole 8 and the second hole 31, and is then placed in a vertical upward state. The bent portion 6c comes into contact with the recess 18 of the bottom plate member 3.

[0135] On the other hand, one end 6a side and the other end 6b side of the belt member 6 are bent upward and fitted into the respective belt grooves 27a provided on the outer wall surface of the housing body 21 and above the side hole portion 30. The one end 6a side and the other end 6b side abut against the lower surface of the flange portion 24 of the housing body 21 and are disposed in a vertical state facing upward.

[0136] The belt member 6 is disposed so that the bent portion 6c is W-shaped and lower than the one end 6a and the other end 6b in a side cross-sectional view of the molding container 1. 21 is set in the cover 22. It is also possible to provide an undercut or a locking mechanism in the container 21 and the cover 22 so that they do not come off when the user uses them.

[0137] Since the belt member 6 tries to return to its original straight shape, the one end 6a and the other end 6b of the belt member 6 are held down with fingers.

[0138] The positioning portion 27 is aligned with the long groove portion 38, and the belt groove 27a is aligned with the guide groove 38a, and the container 21 is inserted into the covering body 22. The position (orientation) of the container 21 within the covering body 22 is determined and fixed.

[0139] The refill container 2 is assembled. The bottom plate member 3 is inserted into the refill container 2. The convex portion 3a of the bottom plate member 3 is inserted into the first hole portion 8 of the refill container 2. The bottom plate member 3 is supported by a convex portion 19 provided on the bottom of the refill container 2. The refill container 2 is filled with the contents. The upper opening 12 of the refill container 2 is closed with an inner lid body 15 (inner plug 15) equipped with a discharge port 17.

[0140] The refill container 2 is detachably arranged so as to be slidable around the inner circumference of the container 21 and in the vertical direction. The belt member 6 is supported by two guide pieces 39a and 39b.

[0141] The refill container 2 is set inside the container 21 to assemble the molding container 1. As the refill container 2 is lowered, the belt-feeding section 7, which is shaped like a platform and provided at the bottom of the refill container 2, is inserted into the annular groove 32 provided at the bottom of the container 21. In this modification, one side of the belt-feeding section 7 abuts against the first uneven section 9a and is in an engaged state, and the other side abuts against the second uneven section 9b and is in an engaged state. In addition, the bent section 6c (extrusion section 6c) of the belt member 6 abuts against the recess 18 provided below the bottom plate member 3. The bottom plate member 3 can be raised by the abutment of the belt member 6. <How to operate> Rotating the refill container 2 rotates the belt-feeding portion 7, which is formed in a spiral shape with one turn on the outside of the bottom of the refill container 2. The belt-feeding portion 7 engages with a first uneven portion 9a provided on the one end 6a side of the bent portion 6c of the belt member 6, and a second uneven portion 9b provided on the other end 6b side of the bent portion 6c.

[0142] As the refill container 2 continues to rotate, the rotating belt-feeding portion 7 slides and engages with the first uneven portion 9a and the second uneven portion 9b, and the bent portion 6c (midway in the longitudinal direction) of the belt member 6 is fed toward the first hole portion 8 of the refill container 2, and the bent portion 6c protrudes from the first hole portion 8. This feeding operation of the belt member 6 is repeated.

[0143] The belt member 6 has a W-shape in a side view with the central bent portion 6c raised. When the bent portion 6c of the belt member 6 protrudes from the first hole portion 8 of the refill container 2, the bent portion 6c (the pushing portion 6c) of the belt member 6 rises and pushes up the bottom plate member 3.

[0144] Furthermore, when the refill container 2 (inner container 2) is not set in the housing 21 (outer container 4) and is in an unattached state, the belt member 6 is free relative to the refill container 2, making it easy to remove the refill container 2.

[0145] The above-mentioned method for setting the belt member 6 is one example, and other methods are also possible for setting. For example, a method may be used in which the middle part of the belt member 6 in the longitudinal direction is folded upward, and then the folded part 6c is projected from the first hole 8 and the second hole 31, and passes through the side hole 30 to the outside. [Second embodiment] Fig. 10 shows an outline of the second embodiment of the forming container 1 of the present invention, and Fig. 11 shows an outline of the forming container 1 of the second embodiment when assembled.

[0146] 10, 11, etc., this embodiment is different from the first embodiment in the configuration of the lifting mechanism 5, etc. That is, this embodiment is different from the first embodiment in the shape of the uneven portion 9 provided on the belt member 6, the shape of the belt feed-out portion 7, etc. Note that, regarding the configuration of the forming container 1, the assembly method, the operation method, etc., parts that are substantially the same as those in the first embodiment will be briefly described.

[0147] As shown in FIGS. 10 and 11, in this embodiment, the inner container 2 is fitted into the outer container 4. The inner container 2 is formed in the shape of a large, wide-mouthed bottle and is capable of containing semi-solid or paste-like cosmetics.

[0148] The inner container 2 has a cylindrical body 10 with a bottom for containing cosmetics or the like, a flange 11 provided on the upper part of the body 10, and an upper opening 12 that opens the upper side of the body 10. A male screw portion 13 is provided around the upper outer wall of the inner container 2.

[0149] The flange 11 is provided so as to protrude outward from the upper opening 12. The flange 11 of the inner container 2 engages with a shoulder 24 provided on a housing 21 that constitutes the outer container 4, whereby the inner container 2 is supported by the housing 21.

[0150] In this embodiment, an inner lid body 15 (inner plug 15) is attached to the top of the inner container 2. The inner lid body 15 closes the upper opening 12 of the inner container 2. A female screw portion 16 is formed around the inner wall of the inner lid body 15 and screws into the male screw portion 13 provided on the inner container 2. A discharge port 17 is provided in the center of the inner lid body 15, through which the contents in the inner container 2 can be discharged to the outside.

[0151] The bottom plate member 3 (lifting plate 3) is a disk member that is disposed at the bottom of the inner container 2 (body portion 10) and can move upward. A protruding convex portion 3a is provided at the center of the back surface of the bottom plate member 3. A recess 18 is provided in the protruding portion 3a. One end 6a of a belt member 6, which will be described later, comes into contact with this recess 18. When the belt member 6 is unwound, the belt member 6 passes through the first hole portion 8 and one end 6a rises, so that the bottom plate member 3 is moved upward by the belt member 6 via the recess 18, pushing up the contents.

[0152] A first hole 8 is provided in the center of the bottom of the inner container 2. In this embodiment, a convex portion 19 that protrudes upward is formed in the center of the bottom of the inner container 2. The first hole 8 is provided penetrating the center of the convex portion 19. In other words, the convex portion 19 is a cylindrical member in which the first hole 8 is provided. The convex portion 19 also serves as a support portion 19 that supports the bottom plate member 3.

[0153] The first hole 8 is a hole that penetrates the bottom of the inner container 2 in the vertical direction. The first hole 8 connects the inside of the inner container 2 with the housing 21 side of the outer container 4. One end 6a of the belt member 6 is disposed to penetrate through the first hole 8. In addition, a belt groove 27a that guides the belt member 6 is provided below the first hole 8.

[0154] In this embodiment, the belt groove 27a is provided from the outer wall surface to the bottom of the inner container 2. The belt groove 27a is a long groove that runs from the outer wall surface of the inner container 2 around the bottom and reaches the first hole portion 8.

[0155] The belt groove 27a has a width that allows the belt member 6 to fit in. That is, the belt groove 27a is provided with a pair of protruding pieces on the left and right at a predetermined interval, and the belt member 6 is disposed in the groove between them so as to be slidable in the up and down direction.

[0156] In other words, the belt groove 27a has a groove that guides the belt member 6 that constitutes the lifting mechanism 5 when it is being unwound. The belt groove 27a guides the belt member 6 downward when it is being unwound.

[0157] The belt groove 27a in this embodiment is adapted to fit into a protrusion 40 provided on a guide piece 39a inside the cover 22. The position of the inner container 2 inside the cover 22 is determined by fitting the belt groove 27a into the protrusion 40. The belt groove 27a in this embodiment serves as a positioning portion. This allows the inner container 2 to be fixed in the circumferential direction.

[0158] The belt member 6 of this embodiment is a flexible, elongated member, similar to the first embodiment. The belt member 6 is arranged so that one end 6a side protrudes from the first hole portion 8. The one end 6a side of the belt member 6 is arranged in contact with a recess 18 provided in the convex portion 3a of the bottom plate member 3.

[0159] The other end 6b of the belt member 6 is bent upward and fitted into a belt groove 27a provided on the outer wall surface of the inner container 2. The other end 6b abuts against the lower surface of the flange 11 of the containing body 21. In other words, the other end 6b is disposed in a vertical state facing upward.

[0160] The belt member 6 is curved (U-shaped in a side view of the forming container 1) and disposed between the inner container 2 and the container 21 (outer container 4). The belt member 6 pushes up the bottom plate member 3 from one end 6a side. That is, the one end 6a side of the belt member 6 is an extrusion that pushes up the bottom plate member 3. Part 6a.

[0161] Unlike the first embodiment, the uneven portion 9 of this embodiment is formed with at least one peak on the surface of the other end 6b side of the belt member 6. The uneven portion 9 faces the container 21 disposed on the outside and is disposed so as to mesh with the belt feed-out portion 7. In this embodiment, the uneven portion 9 is formed with two peaks on the outer surface (surface) of the other end 6b side of the belt member 6.

[0162] The uneven portion 9 (belt threads) is provided on the inner circumferential surface of the container 21 so as to mesh with a plurality of spiral (internal screw) belt feed-out parts 7. The uneven portion 9 can be a single thread, so the amount by which the bottom plate member 3 is lifted can be changed by adjusting the thread pitch of the belt feed-out part 7. The height of the uneven portion 9 (thread) is to be determined arbitrarily depending on the weight of the contents, the material of the inner container 2 (belt feed-out part 7) such as hardness, and other factors.

[0163] The belt-letting portion 7 is formed in a spiral (spiral) shape with at least one turn in a plan view. In this embodiment, the belt-letting portion 7 is formed on the inner wall surface of the container 21 (outer container 4) and is formed as a downward spiral with multiple turns.

[0164] The belt feed-out portion 7 of this embodiment is an internal thread formed on the inner wall surface of the accommodating body 21. That is, the accommodating body 21 of this embodiment is a ring member equipped with an internal thread (belt feed-out portion 7).

[0165] Specifically, the belt feed-out portion 7 is formed on the inner wall surface of the container 21, and is a downwardly wound spiral (shaped like a screw groove). The belt feed-out portion 7 is engaged with a two-ridge uneven portion 9 (thread) formed on the other end 6b side (outer surface) of the belt member 6. The size of the gap between the multiple spiral belt feed-out portions 7 is one pitch of the uneven portion 9. In other words, the multiple spiral belt feed-out portion 7 and the uneven portion 9 of the belt member 6 have a screw structure.

[0166] When the cylindrical container 21 is rotated, a plurality of spiral (internal screw) belt-letting portions 7 provided on the inner peripheral surface of the container 21 rotate. The uneven portion 9 provided on the other end 6b of the belt member 6 meshes with the belt-letting portions 7. As the cylindrical container 21 rotates, the uneven portion 9 slides along the spiral of the belt-letting portion 7 and moves downward along the belt groove 27a.

[0167] When the belt-delivery section 7 rotates once, the uneven portion 9 moves down by one pitch, i.e., by one thread, and the belt member 6 is delivered to the first hole portion 8 by that amount. In this manner, the uneven portion 9 (the other end 6b) of the belt member 6 is engaged with the belt-delivery section 7 having a plurality of spirals (internal threads), and so moves down while sliding on the belt-delivery section 7. Meanwhile, one end 6a (extrusion portion 6a) of the belt member 6 is pushed upward from the first hole portion 8, and raises the bottom plate member 3 in the inner container 2 by one pitch of the uneven portion 9.

[0168] The outer container 4 is formed in a bottomed cylindrical shape and has a wide-mouthed bottle shape into which the inner container 2 is fitted from the outside to accommodate it. In this embodiment, the outer container 4 is a divided body consisting of an upper side and a lower side, and has a container 21 that accommodates the inner container 2, and a cover body 22 that accommodates the container 21. Note that, although the outer container 4 is a divided body in this embodiment, it may be an integrated container.

[0169] The container 21 is formed in the shape of a wide-mouthed bottle that is larger than the inner container 2. The container 21 has a cylindrical body 23 that houses the inner container 2, a shoulder 24 provided on the upper part of the body 23, and an upper opening 25 that opens the upper side of the body 23.

[0170] The container 21 has a certain depth for containing the inner container 2. The shoulder 24 is provided so as to protrude outward from the upper opening 25. The flange 11 of the inner container 2 is engaged with the shoulder 24, thereby supporting the inner container 2 when it is contained.

[0171] The container 21 of this embodiment has a plurality of spiral (internal thread) belt feed-out portions 7 on its inner circumferential surface. That is, the container 21 of this embodiment is a ring member having an internal thread (belt feed-out portion 7). The container 21 has a grip 41 on its outer wall surface to facilitate rotation of the container 21.

[0172] The uneven portion 9 provided on the other end 6b of the belt member 6 engages with multiple spiral (internal thread) belt feed-out portions 7 provided in the container 21, so that the inner container 2 is rotatably supported within the container 21 when stored.

[0173] The cover 22 is formed in the shape of a wide-mouthed bottle that is larger than the container 21. The cover 22 has a cylindrical body 34 with a bottom that houses the lower side of the container 21, a shoulder 35 provided at the upper part of the body 34, and an upper opening 36 that opens the upper side of the body 34.

[0174] The body 34 has a certain size for containing the container 21. The grip 41 of the container 21 slidably abuts against the shoulder 35, and supports the container 21 rotatably when contained. The cover 22 covers the outside of the lower part of the container 21 to contain it.

[0175] The outer container 4, which is composed of the covering body 22 and the containing body 21, is integrated with the inner container 2 by covering the outer surface of the inner container 2 and containing it. That is, the molded container 1 of this embodiment is a containing container having a triple-wall structure.

[0176] A rib-like guide piece 39 is provided on the bottom of the covering body 22. The guide piece 39 guides the belt member 6 when it is being unwound. In this embodiment, the guide piece 39 is composed of a guide piece 39a formed on the guide groove 38a side and a guide piece 39b formed in the center of the bottom of the covering body 22.

[0177] Specifically, guide piece 39a has a substantially triangular shape in a side view, and the oblique side extending from the lower portion of belt groove 27a toward the center of the bottom of covering body 22 is recessed downward with a radius R. Guide piece 39b has a mirror image of guide piece 39a (with the oblique side recessed downward with a radius R), and is provided in the center of the bottom of covering body 22 opposite guide piece 39a.

[0178] That is, the guide pieces 39a and 39b are provided so as to form a substantial U-shape. The guide pieces 39 smoothly guide the belt member 6, which is provided in a U-shape when the forming container 1 is assembled, during unwinding.

[0179] The guide piece 39a is provided with a protrusion 40 into which the belt groove 27a fits. By fitting the belt groove 27a into the protrusion 40, the position of the inner container 2 on the cover 22 is determined and the inner container 2 is fixed in the circumferential direction.

[0180] One end 6a of the belt member 6 is guided into the belt groove 27a and bent so as to face upward toward the first hole 8, and the one end 6a is disposed so as to protrude from the first hole 8. The other end 6b of the belt member 6 is fitted into the belt groove 27a provided in the outer wall surface of the inner container 2 so that the two-ridge uneven portion 9 faces outward (toward the container 21).

[0181] The containing body 21 is fitted into the covering body 22. The inner container 2 equipped with the belt member 6 is fitted into the containing body 21 by engaging the two-ridged uneven portion 9 (thread) with the belt delivery portion 7 having multiple spirals (internal threads).

[0182] The belt member 6 is supported from the inside by the belt groove 27a, and is supported from the outside by the guide pieces 39a and 39b of the cover 22. In this way, the belt member 6 is arranged in a U-shape in a side cross-sectional view of the forming container 1 (at the start of use, the belt member 6 is arranged in a J-shape with one end 6a side lower than the other end 6b side).

[0183] The belt member 6 is disposed so as to be in a substantially U-shape between the containing body 21 and the covering body 22 by the belt groove 27a of the inner container 2 and the guide pieces 39a, 39b of the covering body 22. When the containing body 21 is rotated, the two-ridged uneven portion 9 (thread) that meshes with the internally threaded belt feed-out portion 7 moves downward along the belt groove 27a, thereby smoothly guiding the belt member 6 when it is paid out. [Operation mode] Next, the operation of the forming container 1 of this embodiment will be described with reference to the drawings. <Assembly method> The inner container 2 is assembled as shown in Figures 10 and 11. That is, the belt member 6 is curved by being aligned along the belt groove 27a. One end 6a of the belt member 6 is inserted into the first hole 8 in the center of the bottom of the inner container 2. That is, one end 6a of the belt member 6 passes through the first hole 8 and is placed in a vertical state facing upward.

[0184] The other end 6b of the belt member 6 is fitted into the belt groove 27a. The other end 6b abuts against the underside of the flange 11 of the inner container 2 and is disposed in a vertical upward position. The bottom plate member 3 is inserted into the inner container 2 and placed on the bottom of the body 10.

[0185] The bottom plate member 3 has a convex portion 3a provided at the center of the back surface thereof, which is aligned with the first hole portion 8 at the center of the bottom of the inner container 2. The bottom plate member 3 is supported by a protrusion 19 provided on the bottom of the body 10. The inner container 2 is filled with the contents. The upper opening 12 of the inner container 2 is closed with an inner lid body 15 (inner plug 15) equipped with a discharge port 17.

[0186] The inner container 2 with the belt member 6 attached is set on the container 21 fitted into the covering body 22 (outer container 4). That is, the upper container 21 is inserted into the covering body 22 from the side opening 36. The belt member 6 is attached to the inner container 2. The two-ridged uneven portion 9 (screw thread) is engaged with the multiple spiral (internal thread) belt feed-out portion 7, and the inner container 2 with the belt member 6 is fitted into the container 21. Since the belt member 6 tries to return to its original straight shape, the other end 6b of the belt member 6 is pressed with a finger when fitting the inner container 2.

[0187] The belt groove 27a of the inner container 2 fits into the protrusion 40 provided on the guide piece 39a of the cover 22, so that the position of the inner container 2 on the cover 22 is determined and the inner container 2 is fixed in the circumferential direction.

[0188] The belt member 6 is supported from the inside by the belt groove 27a, and is supported from the outside by the guide pieces 39a and 39b of the cover 22. In this way, the belt member 6 is arranged in a U-shape in a side cross-sectional view of the forming container 1 (at the start of use, the belt member 6 is arranged in a J-shape with one end 6a side lower than the other end 6b side). <How to operate> At the start of use, the other end 6b of the belt member 6 is in the belt groove 27a and extends upward. That is, in a side cross-sectional view of the forming container 1, the one end 6a of the belt member 6 is disposed in a J-shape (inverted J-shape in the drawing) lower than the other end 6b.

[0189] When the cylindrical container 21 is rotated, the belt-let-out portion 7 rotates. The belt-let-out portion 7 has a spiral shape (internal thread shape) and is formed on the inner wall surface of the container 21. The two-ridge uneven portion 9 on the other end 6b of the belt member 6 meshes with the internal thread belt-let-out portion 7.

[0190] The uneven portion 9 slides along the spiral of the belt-feeding portion 7 as the cylindrical container 21 rotates, and moves downward along the belt groove 27a. The belt member 6 is guided to the first hole portion 8 by the belt groove 27a of the inner container 2 and the guide pieces 39a and 39b of the cover 22.

[0191] When the cylindrical container 21 rotates once, the uneven portion 9 that meshes with the belt feed-out portion 7 moves down by one pitch, that is, by one thread, so that the belt member 6 is fed out to the first hole portion 8 by that amount.

[0192] As the container 21 continues to rotate, the uneven portion 9 (the other end 6b) of the belt member 6 engages with the multiple spiral (internal thread) belt feed-out portions 7, and slides down along the belt grooves 27a along the belt feed-out portions 7.

[0193] Meanwhile, one end 6a (pushing portion 6a) of the belt member 6 is pushed upward through the first hole portion 8 of the inner container 2, lifting the bottom plate member 3 (lifting plate 3) in the inner container 2 by one pitch of the uneven portion 9.

[0194] In this way, when the container 21 is rotated, the two-ridged uneven portion 9 (thread) that meshes with the internally threaded belt feed-out portion 7 slides on the belt feed-out portion 7 and moves downward along the belt groove 27a, thereby smoothly guiding the belt member 6 when it is fed out.

[0195] At the end of use, one end 6a of the belt member 6 is fully extended upward from the first hole portion 8. That is, in a side cross-sectional view of the forming container 1, the belt member 6 is in a J-shape with one end 6a being higher than the other end 6b.

[0196] As described above, according to the molded container 1 of the present invention, the bottom of the refill container 2 (inner container 2) that contains the contents is provided with a bottom plate member 3, and a lifting mechanism 5 that moves the bottom plate member 3 upward. By simplifying the assembly of the parts that make up the lifting mechanism 5, the bottom plate member 3 can be easily and smoothly pushed up, and the contents can be used up.

[0197] That is, the lifting mechanism 5 of the present invention has a belt member 6 whose one end 6a abuts against the bottom plate member 3 and pushes up the bottom plate member 3 by lifting the one end 6a, an uneven portion 9 formed on the surface of the belt member 6, a belt feed-out portion 7 that engages with the uneven portion 9 to pay out the belt member 6 and lift the one end 6a, and a first hole portion 8 provided in the center of the bottom of the refill container 2 (inner container 2) and through which the one end 6a of the belt member 6 is inserted.

[0198] As a result, the belt member 6 (uneven portion 9) and the refill container 2 (belt delivery portion 7) function as a screw, so when the contents are ejected, a strong force like that of a screw acts between the uneven portion 9 and the belt delivery portion 7, making it possible to eject the contents easily and smoothly with a light force.

[0199] It should be noted that the embodiments disclosed herein are illustrative in all respects and should not be considered as limiting. In particular, in the embodiments disclosed herein, matters not explicitly stated, such as operating conditions, operation conditions, dimensions and weights of components, do not deviate from the scope of ordinary practice by a person skilled in the art, and are matters that can be easily imagined by a person skilled in the art.

[0200] Furthermore, the shape of the molded container 1 of the present invention can be varied to include, for example, a jar container, lipstick, lip balm, glue, and other rod-shaped containers. [Explanation of symbols]

[0201] 1 Molded container 2 Container (refill container) 3. Bottom plate member (lifting plate) 4 Outer container 5 Lifting mechanism 6 Belt member 6a One end (extrusion part) 6b Other end 6c Bending section (extrusion section) 7 Belt sending section 7a One end 7b other end 8 First hole 9 Unevenness (thread) 9a 1st uneven part 9b Second uneven part 15 Inner lid body 17 Discharge port 20 Gap 21 Container (outer container) 22 Covering body (outer container) 27 Positioning part 27a Belt groove 30 Side hole 31 2nd hole 32 Annular groove 38 Long groove part 38a Guide groove 39a Guide piece 39b Guide piece

Claims

1. a cylindrical inner container with a bottom into which contents can be inserted; A bottom plate member disposed within the inner container and movable upward; an outer container that accommodates the inner container therein; a lifting mechanism for moving the bottom plate member upward, The lifting mechanism includes a belt member that pushes up the bottom plate member, and a belt sending-out section that sends out the belt member. A molded container characterized by:

2. The lifting mechanism includes: the belt member having one end side in contact with the bottom plate member and pushing up the bottom plate member by lifting the one end side; a first hole provided at the center of a bottom of the inner container and through which one end of the belt member passes; An uneven portion formed on a surface of the belt member; the belt sending-out portion that engages with the uneven portion to send out the belt member and raise the one end side; 2. The molded container according to claim 1 .

3. A second hole portion communicating with the first hole portion is provided at the center of the bottom portion of the outer container, the belt member is flexible, one end side of which protrudes from the first hole and the second hole and abuts against the bottom plate member, and is disposed outside the outer container in a curved manner in a side view, the belt delivery section is formed on the outside of the bottom of the inner container, and is a single-turn spiral having one end and the other end offset by a certain amount to form a gap; The uneven portion is formed on the surface of the belt member in a plurality of portions and is provided so as to enter and mesh with the gaps in the belt delivery portion.

3. The forming container according to claim 2.

4. the belt member is a long member having a bendable longitudinal middle portion, the bent portion being disposed so as to protrude from the first hole portion and the second hole portion so as to abut against the bottom plate member, the uneven portion has a first uneven portion formed on one end side of the bent portion of the belt member and a second uneven portion formed on the other end side, The first uneven portion and the second uneven portion are arranged at different pitches that are offset by one mountain in a side view when the belt member is folded to provide the bent portion.

4. The molded container according to claim 3.

5. When the inner container is not attached to the outer container, the belt member is free from the inner container, and the inner container is detachable.

5. The molded container according to claim 3 or 4.

6. the belt member is flexible, one end side of which projects through the first hole and abuts against the bottom plate member, and is curved and disposed between the inner container and the outer container, The belt delivery portion is formed on the inner wall surface of the outer container and is a spiral having a plurality of windings extending downward, The uneven portion is formed with at least one peak on the surface of the other end side of the belt member and is disposed so as to mesh with the belt delivery portion.

3. The forming container according to claim 2.

Images