JP5827174B2 - Refill container, refill container product using the same, and double container product using the same. - Google Patents

Description

  The present invention relates to a refill container, a refill container product in which the contents of the refill container are filled, and a double container product containing the refill container product in a wide-mouth container.

  As containers for storing cosmetics having fluidity but relatively high viscosity, such as moisturizing creams, massage creams, and foundations, so-called “jars” are widely used. For example, as shown in FIG. 8, this conventional wide-mouth container is composed of a container main body 102 that houses cosmetics 101 and a cap 103 that covers the mouth opening. A sealing material 104 is attached to the inside of the cap 103 so that the fluid cosmetic 101 does not leak to the outside. By tightening the cap 103, the internal sealing performance is maintained. It is like that.

  Such a wide-mouthed container is usually discarded when the contents are empty, but a relatively thick container is used to protect the contents, so the material cost of the container is high and the container is used only once. It is uneconomical to dispose of it. In particular, when the contents are high-grade cosmetics, the container is often decorated with a gorgeous decoration, and the container becomes expensive, which is further uneconomical.

  Thus, it has been proposed to store cosmetics in a simple container so that the cosmetic can be refilled into a beautiful outer container (see, for example, Patent Document 1). That is, in Patent Document 1 below, as shown in FIG. 9, as shown in FIG. 9, a coarse cup 106 (refill container, “refill container main body” described later) having a cap 105 (with a packing 108 attached to the inside) in an opening portion. ) Is detachably fitted to the decorative cover (outer container) 107.

No. 7-25299

  However, in the above configuration, the cap 105 having a required rigidity and functioning as a container forms a part of the coarse cup 106 and is disposable together with the coarse cup 106. Despite the introduction of the “refillable container” concept, the economic effect is small.

  Further, the configuration for detachably fitting the rough cup 106 to the decorative cover 107 is complicated, and the cap 105 is bulky, so that the predetermined volume ratio (volume occupied by the contents / volume of the entire container) is determined. In order to secure the content, it is necessary to fully fill the contents up to the vicinity of the opening of the coarse cup 106. In this case, the contents (such as cosmetic cream) adhere to the packing 108 inside the cap 105 during transportation and the like. There is something wrong.

  On the other hand, a refillable container (refill container) whose upper surface opening is sealed with a sealing material such as aluminum foil or plastic film is removably accommodated in an outer container composed of a cap and a container body. Although this can reduce the container cost somewhat compared to the container of FIG. 8, there is a problem that the strength of the opening sealed by the sealing material is weak and care is required when handling the refill container alone. Further, when the sealing material is peeled off, not only the contents adhere to the back surface but the appearance is bad, but if the contents adhere to this part, the adhered portion is discarded together with the sealing material, which is uneconomical.

  The present invention has been made in view of such circumstances, and has an excellent refill container that is economical and easy to use with a simple configuration, and has a good appearance, and a refill container product filled with contents in the refill container, and An object of the present invention is to provide a double container product in which the refill container product is accommodated in a wide-mouth container.

In order to achieve the above object, the present invention provides a refill container accommodated in a wide-mouthed container, wherein the refill container has a substantially bottomed cylindrical refill container body and an opening of the refill container body. The refill container main body is provided with a convex strip on the outer side thereof, and on the inner side thereof is provided with a stepped surface formed as a paragraph lower than the upper end surface. Further, an annular groove is formed on the step surface, and the inner lid includes a concave lid portion that covers the opening of the refill container body, a flange portion that projects outward from the upper end of the peripheral wall of the concave lid portion , A knob formed on the concave surface of the concave lid portion, and a convex strip is formed on the upper surface of the flange portion of the inner lid , and at the peripheral edge of the flange portion, at least 10 ° to the horizontal plane. Inclined obliquely downward at an angle of less than ° And the lower surface of the inclined portion is a convex portion that enters the annular groove of the refill container body, and the convex portion of the lower surface of the inclined portion of the flange portion enters the annular groove of the refill container body. Accordingly, the flange portion is a first aspect of the refill container is engaged with the stepped surface of the refill container body.

Further, the present invention is its inter alia, in particular, the lid in the above SL is a single piece of flexible resin, refill container above the tab is adapted to protrude obliquely upwardly by its own elasticity Is the second gist.

In addition, the present invention, among them, in particular, the knob is composed of a rising portion that rises from the bottom surface of the concave lid portion of the inner lid, and a knob that extends from the rising portion. the thickness of the section is, as a third aspect of the refill container is set to 1/3 or more than 2/3 the range of the thickness of the knob portion.

And this invention is the refill container product by which the refill container which is the summary of any one of said 1st- 3rd was filled with the content, and the upper surface was sealed with the sealing material, Comprising: The said sealing material is the said is joined to the ridge provided on the opening edge of the refill container body, the flange portion in said lid, a refill container products that are sandwiched between the sealing member and the stepped surface of the refill container body 4 Among them, in particular, the inner lid is an integrally molded product of a flexible resin, and when the sealing material is sealed, the knob is laid down along the lower surface of the sealing material, and the sealing material is sealed. At the time of release, a fifth aspect is a refill container product in which the above-mentioned knob piece protrudes obliquely upward by its own elasticity.

Furthermore, this invention makes the 6th summary the double container product by which the refill container product which is the said 4th or 5th summary is accommodated in the wide mouth container.

  That is, the refill container of the present invention has an inner lid having a refill container main body provided with a protrusion on the outer side of the opening edge and provided with a step surface that is one step lower on the inner side, a concave lid part, a flange part, and a knob. It is the composition which combined. According to this configuration, the opening of the refill container main body can be easily covered with the inner cover by engaging the flange portion of the inner cover with the stepped surface of the refill container main body. On the contrary, when opening the inner lid, it can be easily opened using a knob provided on the concave surface of the inner lid, which is convenient.

  Moreover, since the refill container product of the present invention seals the entire upper surface of the refill container body with a sealing material, the upper surface of the container is covered with an inner lid and a sheet-like sealing material, and the refill container is transported. It is possible to prevent deterioration of the quality of the contents during storage and storage, and to buffer the external impact on the container.

  In addition, the sealing material is joined to a ridge provided outside the upper end surface of the opening edge of the refill container body, and the flange portion of the inner lid is interposed between the sealing material and the step surface of the refill container body. By pinching, it is possible to ensure excellent shape retention and sealing, so that the contents may leak to the outside or the quality may deteriorate even when a large impact is applied especially during transportation. Absent. Therefore, the refill container can be circulated as a product alone without being accommodated in a wide-mouth container or the like.

  Furthermore, the refill container product of the present invention has a good appearance despite being a refill container because an inner lid that has not been used in the conventional refill container is disposed inside the sealing material. Since the contents do not adhere to the lower surface of the sealing material and are discarded together with the sealing material, it is economical. In addition, the inner lid can be used as a product inner lid as it is after the sealing material is removed, and can be used repeatedly by the knob provided on the inner lid, so it is more convenient than the one without a knob. High nature.

  And, when the above-mentioned refill container is accommodated in a wide-mouthed container and made into a double container product, the opening of the refill container body is located outside the inner lid and the refill container even after the sealing material is peeled off and removed. Since it is double protected by the cap of the container, it is possible to effectively prevent the deterioration of the quality of the contents and to buffer the external impact on the container.

Further, in the present invention, in particular, since the ridges on the flange upper surface of the inner lid is formed, the height from the horizontal plane of the convex, convex formed outside the opening upper end surface of the refill container body By setting the height of the strip from the horizontal plane to be substantially the same, the convex strip on the upper surface of the flange portion acts to press the inner lid downward by the sealing material, and the position of the inner lid is stably maintained. be able to. Therefore, there is an advantage that the contents are less likely to leak and the quality of the contents is maintained against impact or storage due to transportation.

Further, in the present invention , in particular, an annular groove extending in the circumferential direction is formed on the step surface of the refill container body, and a convex portion that enters the annular groove is formed on the lower surface of the flange portion of the inner lid. For this reason , since the convex portion at the lower end of the flange portion enters the annular groove, the contact between the convex portion and the annular groove is increased, so that the contents can be more difficult to leak from the refill container. For example, even if the fluidity of the contents is relatively high, the refill container can be used in a cleaner state without leaking to the outside of the inner lid.

Moreover, in the present invention, in particular, the flange portion peripheral edge of the inner lid, the inclined portion is formed which is inclined obliquely downward by an angle of less than 80 ° 10 ° or more with respect to the horizontal plane, the refill container body ring The engagement between the groove and the flange portion of the inner lid is neither hard nor loose, and the inner lid can be easily detached and has good adhesion.

  In the present invention, in particular, the inner lid is an integrally molded product of a flexible resin, and the knob piece protrudes obliquely upward due to its own elasticity, or a sealing material In the state of unopened, when the tab is lying down along the lower surface of the sealing material when sealed by, and when the tab is protruding obliquely upward by its own elasticity when releasing the sealing by the sealing material Since the vertical gap between the inner lid and the sealing material can be set narrow, the overall shape can be made compact. In addition, since the tab of the inner lid protrudes obliquely upward when used, the inner lid can be easily attached and detached, and is easy to use.

  Further, among the present invention, in particular, the knob is composed of a rising portion that rises from the bottom surface of the concave lid portion of the inner lid, and a knob that extends from the rising portion, and the thickness of the rising portion. However, when the thickness of the knob is set to 1/3 or more and 2/3 or less, when the upper surface opening of the refill container main body is sealed with the sealing material, the knob of the knob is along the lower surface of the sealing material. This is preferable because it tends to fall down and when the seal is released by the sealing material, the portion stands up and tends to protrude obliquely upward.

It is a longitudinal cross-sectional view which shows one embodiment of this invention. It is a fragmentary sectional front view which shows the state which accommodated the refill container which is the said embodiment in the wide mouth container. (A) is a top view of the inner lid used for the said embodiment, (b) is the longitudinal cross-sectional view. FIG. 4 is a partially enlarged explanatory view of FIG. It is a partial expanded explanatory view which shows the engaging part of the inner cover and refill container main body in the said embodiment. (A) is an expansion explanatory view which shows the modification of the knob in the said inner lid, (b) is an expansion explanatory view which shows another modification. It is a partial expanded explanatory view which shows the engaging part of the inner lid and refill container main body in the reference form of this invention. It is a longitudinal cross-sectional view which shows an example of the conventional wide mouth container. It is a fragmentary longitudinal cross-section explanatory drawing which shows an example of the conventional wide-mouth container using the refill container.

  Next, modes for carrying out the present invention will be described with reference to the drawings. However, the present invention is not limited to this embodiment. In the specification, “up (direction)” and “down (direction)” mean when the container is placed on a horizontal surface with the opening of the refill container or wide-mouthed container up and the bottom of the container down. The opening side is up (direction), and the bottom side is down (direction). For example, the upper surface, the upper end, and the like refer to those whose surfaces and ends are on the opening side, and the lower surface, the lower end, and the like refer to those whose surfaces and ends are on the bottom side. Further, the “height direction” refers to a direction perpendicular to the horizontal plane when the container is placed on a horizontal plane with the opening of the container main body facing up.

  FIG. 1 shows a longitudinal sectional view of a refill container 10 according to an embodiment of the present invention. The refill container 10 is distributed to the market as a refill container (refill container). The refill container body 20 is filled with contents (not shown), and the inner lid 30 covers the top opening. And a sealing material 40 that seals the entire upper surface thereof. Hereinafter, the refill container of the present invention means a container including the refill container body 20 and an inner lid 30 that covers the opening.

  The refill container main body 20 has a guide flange 21 projecting horizontally from the peripheral wall thereof, and the inner lid 30 includes a concave lid part 31 that covers the opening of the refill container main body 20 and an upper end of the peripheral wall of the concave lid part 31. And a knob portion 33 is formed on the concave surface of the concave lid portion 31.

  Moreover, the peripheral part of the said sealing material 40 protrudes in one side, and it becomes possible to peel off the sealing material 40 from the upper surface of the refill container main body 20 by picking up this protruding part 40a and pulling it up. ing. And after peeling off and removing the said sealing material 40, the content can be repeatedly taken out by opening and closing the said inner lid | cover 30. FIG. However, the sealing material 40 may be peeled in any way, and it is not always necessary to provide the protruding portion 40a as described above.

  FIG. 2 is a partial cross-sectional front view showing a state in which the refill container 10 is housed in a wide-mouthed container 1 (so-called “jar container”) which is an outer container. The cap 3 of the wide-mouthed container 1 is adapted to mesh with the threaded portion 22 formed on the outer peripheral surface of the peripheral wall above the guide flange 21 of the refill container main body 20. However, the cap 3 does not necessarily need to be taken as the refill container main body 20, and may be brought into contact with the wide-mouthed container main body 2. In addition, the cap 3 can be connected to the wide-mouthed container body 2 or the refill container body 20 so as to be freely opened and closed by a method other than twisting. For example, the hinge-connected cap 3 may be opened and closed in the front-rear direction, or the lid may be opened and closed by sliding in the horizontal direction.

  The wide-mouthed container body 2 is divided into upper and lower parts. One is a shoulder ring (fixed ring) 2a, and the other is a wide-mouthed container member 2b having a substantially bottomed cylindrical shape, and both are coupled to each other. Then, with the guide flange 21 of the refill container body 20 placed on the upper end surface of the peripheral wall of the opening of the wide-mouth container member 2b, the shoulder ring 2a is screwed into the wide-mouth container member 2b, whereby the guide flange 21 is It is fixed between the shoulder ring 2a and the wide-mouthed container member 2b.

  In this way, by fixing the guide flange 21 between the shoulder ring 2a and the wide-mouthed container member 2b, rotation around the central axis of the refill container (a line extending in the normal direction from the center of the bottom surface of the refill container) is prevented. it can. Further, by providing at least one of a concave portion (notch or the like) and a convex portion (protruding portion) on the inner peripheral surface of the guide flange 21 and / or the wide-mouthed container member 2b, rotation can be reliably prevented. A threaded portion 22 that mates with the cap 3 of the wide-mouthed container 1 is formed on the outer peripheral surface of the peripheral wall of the refill container body 20 above the guide flange 21.

  In addition, the said wide mouth container 1 is a container which enlarged the diameter of the opening part (extraction port) in order to make it easy to take out the contents. The size of the opening of the wide-mouthed container body 2 may be a size that can accommodate the refill container body 20. For example, the size of the opening of the wide-mouthed container body 2 is preferably in the range of 30 mm to 120 mm, and more preferably in the range of 30 mm to 100 mm. Further, the size (diameter) of the opening of the refill container body 20 is not limited as long as the contents can be easily taken out. For example, the inner diameter (diameter) of the opening of the refill container body 20 is preferably 20 mm or more and 100 mm or less, and more preferably 20 mm or more and 80 mm or less.

  And although the shape of the refill container main body 20 and the wide-mouthed container main body 2 has shown the substantially bottomed cylindrical shape in FIG.1 and FIG.2, if the substantially bottomed cylindrical shape, the shape will not be limited. . For example, a refill container body such as an elliptic cylinder, a polygonal cylinder (a cylinder with various polygons such as a triangle, a quadrangle, a pentagon, etc. in plan view) or a shape in which these circles, ellipses, and polygons are partially deformed Any shape may be used as long as the contents can be easily taken out from the 20 openings.

  The refill container 10 and the wide-mouthed container 1 of the present invention are not limited to specific methods, and can be obtained by molding by various resin molding methods such as injection molding, vacuum molding, blow molding, stretch blow molding, and the like. The resin used for the refill container 10 or the member constituting the same and the wide-mouthed container 1 or the member constituting the same may be any resin as long as it is a moldable resin. Among them, a thermoplastic resin is used. This is suitable for manufacturing.

  Specific examples of resins that can be used include polyethylene terephthalate (PET), polyethylene isophthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonate, polyarylate, polylactic acid or copolymers thereof, polyethylene (PE ), Polypropylene (PP), acrylonitrile, propylene-ethylene copolymer, acrylonitrile-styrene copolymer (AS), acrylonitrile-butadiene-styrene copolymer (ABS), resins such as polymethyl methacrylate, or these resins Among them, a blend of two or more types can be mentioned.

  Since the refill container main body 20, the wide-mouthed container main body 2 (shoulder ring 2a and wide-mouthed container member 2b) and the cap 3 are used as containers, they are integrally formed of a relatively rigid resin (for example, PET). It is preferable that it is comprised by the molded article. In addition, by using such a resin for the refill container main body 20, the refill container main body 20 can be thinned. For example, in the present invention, a resin selected from PET, ABS, polymethyl methacrylate, and the like is suitably used for the refill container main body 20 or the wide-mouthed container member 2b. Further, AS is particularly preferably used for the shoulder ring 2a.

  Further, as the cap 3 shown in FIG. 2, for example, those obtained by molding a thermoplastic resin such as PP or PE into a predetermined shape, or those formed by a composite material of these resins and a metal or a film material are listed. It is done. Of course, materials other than these materials may be used. In addition, a packing 3a is provided inside the lower surface of the cap 3 as necessary. The material of the packing 3a may be a resin or an inorganic material as long as the material can ensure the hermeticity of the container. Alternatively, a multilayer material including an oxygen barrier layer or the like may be used.

  Next, the refill container 10 accommodated in the wide-mouth container 1 will be described in detail. First, as already described, the refill container 10 includes a bottomed cylindrical refill container main body 20 and an inner lid 30 that covers the upper surface opening.

  On the upper end surface of the opening edge of the refill container body 20, a step surface (surface that is one step lower) whose inner portion is made lower than the outer portion is formed, and on this step surface 23, A flange portion 32 of an inner lid 30 to be described later is engaged (see FIG. 5).

  And the protruding item | line 25 extended in the circumferential direction is formed in the outer side of the opening edge part upper end surface of the said refill container main body 20 (the part located in the outer side which is not made into the paragraph of the opening edge part upper end surface). This ridge 25 is used for joining with the sealing material 40 (see FIG. 1) that seals the opening (entire upper surface) of the refill container body 20, and for joining them, an adhesive / adhesive (preferably Are suitably applied by means such as adhesion / adhesion with an easily peelable adhesive) or the like, or welding with ultrasonic waves or heat.

  The height of the ridges 25 (indicated by H in FIG. 5, the height from the flat portion A of the upper end surface of the refill container body 20) is sufficient for the thickness of the refill container body 20 and the sealing performance required for the sealing material 40. However, it is preferable to set it to 0.05 mm or more and 0.5 mm or less.

  Further, as shown in FIG. 3A which is a plan view of the inner lid 30 and FIG. 3B which is a longitudinal sectional view thereof, the inner lid 30 enters the opening portion of the refill container main body 20 and opens its upper surface opening. A concave lid portion 31 (see FIG. 1) for closing and a flange portion 32 projecting outward from the upper end of the peripheral wall of the concave lid portion 31 are provided. In addition, a knob 33 (in the figure, the plan view is a tongue-like shape, but any shape as long as it can be picked) is provided at a position that is biased toward the peripheral side of the concave surface of the concave lid portion 31. The entire inner lid 30 can be lifted upward by picking and lifting the knob 33. The material of the inner lid 30 is not limited, but is preferably an integrally molded product made of flexible polypropylene.

  The knob 33 will be described in detail. As shown in FIG. 4 (enlarged view of the portion surrounded by the chain line X in FIG. 3B), the knob 33 has a rising portion 33a that rises from the outer peripheral side of the bottom surface of the concave lid portion 31, and this rising portion 33a. And a knob 33b extending obliquely upward.

  In this example, the thickness P of the rising portion 33a is set to about 0.35 mm, and the thickness Q of the knob 33b is set to about 0.6 mm. In this way, the rising portion 33a is easily bent by making a difference between the thicknesses of the two. In the present invention, it is particularly preferable that P / Q is set in a range of 1/3 or more and 2/3 or less (1.5P ≦ Q ≦ 3P).

  In the present invention, in a state where the top of the knob portion 33b is sealed with the sealing material 40 (the state shown in FIG. 1), the knob portion 33b lies horizontally along the lower surface of the sealing material 40, and the sealing material 40 is removed. In the state, it is preferable to return to the initial shape by the elasticity of the knob 33 itself and to protrude obliquely upward. In FIG. 1, there is a gap between the knob 33 and the sealing material 40 for easy viewing, but it is actually preferable that both are in contact with each other. That is, in the initial state, the knob 33b extends obliquely upward by an angle θ (30 ° in the example of FIG. 4) with respect to the horizontal plane. The angle θ of the knob 33b is preferably set to 15 ° or more and 45 ° or less. As a result, when the knob 33 is sealed with the sealing material 40, the knob 33 can smoothly fall down along the lower surface of the sealing material 40, and can protrude smoothly when opened. And it is suitable to set P / Q in the range of 1/3 or more and 2/3 or less as mentioned above simultaneously with setting of angle theta of knob part 33b.

  In FIG. 4, the thickness P of the rising portion 33a is set to be thinner than the thickness Q of the knob 33b so that the knob 33 can easily fall down along the sealing material 40 disposed thereon. . However, when the material of the inner lid 30 is relatively flexible and easily bent, for example, as shown in FIG. 6A, the rising portion 33a and the knob portion 33b may have the same thickness. Further, when the material of the inner lid 30 is relatively difficult to bend, the rising portion 33a is not thinned, but, for example, at the boundary between the rising portion 33a and the knob portion 33b, as shown in FIG. You may make it provide the dent 33c so that it may fall over easily.

  Next, the engagement between the flange portion 32 and the step surface 23 will be described. In the present invention, as shown in FIG. 5, the flange portion 32 of the inner lid 30 engages (contacts) with the step surface 23 formed on the refill container main body 20. In particular, a concave portion 32d is formed below the flange portion 32, and the bottom surface of the concave portion is substantially horizontal. Therefore, this portion engages with the step surface 23 of the refill container body 20, and both Engage in close contact.

  The width W of the step surface 23 is not limited as long as the flange portion 32 can be engaged with the step surface 23, but is preferably 0.8 mm or more and 4.0 mm or less, and preferably 1.0 mm or more and 3.0 mm or less, 1.2 mm or more and 2.5 mm or less are preferable. Here, the width W of the step surface 23 is a distance from the tangent line X on the inner side of the peripheral wall located outside the opening edge of the refill container body 20 to the inner peripheral surface of the opening of the refill container body 20.

Further, the upper surface of the flange portion 32 in the inner lid 30, it is necessary Tei Rukoto ridge 32a is formed. That is, when the upper surface opening of the refill container main body 20 is sealed with the sealing material 40 (see FIG. 1), the ridges 32a have the action of pressing the inner lid 30 downward with the sealing material 40, so the flange portion 32 and the refill container This is because the adhesiveness with the main body 20 can be further increased, and the contents can be held in a more airtight state.

  In addition, although it is suitable for the said protruding item | line 32a to form continuously in the circumferential direction, ie, it is formed cyclically | annularly over the perimeter, you may form intermittently. The height of the ridge 32a (indicated by H in FIG. 5, but the height from the flat portion B on the upper surface of the flange 32) is preferably 0.05 mm or more and 0.5 mm or less.

  The height of the ridges 32 a is preferably substantially the same as the height of the ridges 25. This is because the height of the ridges 32 a and 25 is made substantially the same so that the inner lid 30 is pressed downward via the sealing material 40 or the cap 3. Here, “substantially the same” means that the difference in height between the ridges 32a and the ridges 25 is so small that the seal material 40 or the cap 3 can be attached. It means that the height difference of 25 is in the range of 0.01 mm or more and 0.3 mm or less. The range is more preferably 0.01 mm or more and 0.2 mm or less, and further preferably 0.01 mm or more and 0.1 mm or less.

  Furthermore, it is preferable to adjust the height of the flat portion A of the outer portion that is not a paragraph on the upper end surface of the peripheral wall of the refill container body 20 and the height of the flat portion B of the upper surface of the flange portion 32 to substantially the same height. That is, it is preferable that the flat part A and the flat part B are located on substantially the same horizontal plane. Here, the definition of “substantially the same” is synonymous with the above-mentioned definition of “substantially the same” regarding the height of the ridges 32a and the ridges 25, and the definition of the difference can be applied in the same manner.

Further, it is necessary to provide an inclined portion 32b inclined obliquely downward by an angle α (α = about 45 ° in the example of FIG. 5) with respect to the horizontal plane at the peripheral portion of the flange portion 32. This is because the outer portion of the flange portion 32 of the inner lid 30 is inclined to form the inclined portion 32b, so that the engagement between the flange portion 32 of the inner lid 30 and the step surface 23 of the refill container main body 20 is better. Because it becomes. That is, when there is no allowance for the engagement between them (the gap between the upper end surface of the peripheral wall of the refill container main body 20 and the flange portion 32), it takes time to attach and detach the inner lid 30 during use, and the usability is deteriorated. Therefore, in order to provide a sufficient margin for the engagement between the two and to ensure adhesion, it is preferable to set the inclination angle α of the inclined portion 32b to 10 ° or more and 80 ° or less, particularly 30 ° or more and 50 ° or less. is there. This is because if the inclination of the inclined portion 32b is too steep than the above range, the engagement is hard and difficult to be disengaged, and conversely if it is too loose, the inner lid 30 may be displaced and the adhesion may be impaired.

  Further, when the upper surface opening of the refill container body 20 is sealed with the sealing material 40, the gap between the upper end surface of the peripheral wall of the refill container body 20 and the flange portion 32 is obtained by placing the sealing material 40 along the inclined portion 32 b. The sealing material 40 can be brought into close contact with each other. In this case, if the material of the flange portion 32 is PP and the material of the refill container main body 20 is PET, the flange portion 32 may be welded to the seal material 40 when the refill container main body 20 and the seal material 40 are welded. It is preferable because it is not present.

In addition, as shown in FIG. 5, the convex part 32c is provided in the tip (downward direction) of the said inclination part 32b. By this convex portion 32c, the lower end portion of the peripheral edge portion of the flange portion 32 is convex downward. The convex portion 32c may be provided continuously in the circumferential direction (formed in an annular shape over the entire circumference), or may be provided intermittently, but is formed continuously in the circumferential direction. Is preferable from the viewpoint of hermeticity or shape retention.

In the present invention, together with the convex portion 32c is provided, an annular groove 24 extending outwardly (between the peripheral wall located in the opening edge portion outside the stepped surface 23 and the refill container body 20) in the circumferential direction of the step surface 23 at the same time provided Ru. When the convex portion 32c is inserted into the annular groove 24, it is unexpected that the leakage of contents can be more effectively prevented as compared with the case where the flange portion 32 is simply engaged (FIG. 7). An effect is obtained. In order for the convex portion 32 c to enter the annular groove 24, it is preferable to set the height and width of the convex portion 32 c smaller than those of the annular groove 24.

In addition, when the contents filled in the refill container body 20 are relatively difficult to flow, the inclined part 32b is provided in the flange part 32 of the inner lid 30 as in the above example, and the refill container body. It is not necessary to provide an annular groove 24 in 20 and engage the two. For example, as shown in FIG. 7, a flat lower surface of the flange portion 32 of the inner lid 30 and a flat stepped surface 23 of the refill container main body 20 are provided. A structure to be joined may be used (a reference form of the present invention) .

  The height of the convex portion 32c (indicated by Ha in FIG. 5) is preferably 0.1 mm to 0.8 mm, more preferably 0.1 mm to 0.6 mm, and further preferably 0.1 mm to 0.5 mm. preferable. Here, the height of the convex part 32c is the distance (height direction) between the horizontal plane of the concave part 32d and the horizontal plane in contact with the apex of the convex part 32c.

  Further, the width of the convex portion 32c (indicated by Wa in FIG. 5) is preferably 0.3 mm or more and 1.4 mm or less, more preferably 0.5 mm or more and 1.3 mm or less, and 0.6 mm or more and 1.0 mm or less. Further preferred. Here, the width of the convex portion 32c is the tangent line X ′ (in the height direction) of the peripheral portion of the flange portion 32 (in FIG. 5, the peripheral portion of the flange portion 32 located between the inclined portion 32b and the convex portion 32c). Tangent) and the line Y extending in the height direction from the point where the inclination of the convex part 32c starts from the concave part 32d of the flange part 32 (the boundary between the concave part 32d and the convex part 32c).

  Further, the shape of the annular groove 24 is not limited, but is preferably concave (substantially square in cross section). In the engagement between the annular groove 24 and the convex portion 32c, it is desirable to leave some gaps in both the horizontal direction and the vertical direction as shown in the figure. If the gap is too narrow, it is difficult for the inner lid 30 to come off, and if it is too wide, the position of the inner lid 30 may not be stable.

  The height of the annular groove 24 (indicated by Hb in FIG. 5) is preferably 0.3 mm or more and 1.2 mm or less, more preferably 0.3 mm or more and 1.0 mm or less, and further preferably 0.3 mm or more and 0.8 mm or less. . Here, the height of the annular groove 24 is the distance (height direction) between the horizontal surface of the step surface 23 and the horizontal surface of the groove bottom surface of the annular groove 24.

  The width of the annular groove 24 (indicated by Wb in FIG. 5) is preferably 0.5 mm or more and 1.5 mm or less, more preferably 0.6 mm or more and 1.5 mm or less, and further preferably 0.8 mm or more and 1.5 mm or less. Here, the width of the annular groove 24 is such that the line X rising from the horizontal plane of the groove bottom surface of the annular groove 24 and extending in the direction of the peripheral wall located outside the opening edge of the refill container body 20 and the recess 32 d of the flange portion 32. To the line Y extending in the height direction from the point where the slope of the convex portion 32c starts (the boundary between the concave portion 32d and the convex portion 32c).

  In the present invention, the width (indicated by R in FIG. 5) of the portion where the concave portion 32d in the lower portion of the flange portion 32 and the step surface 23 of the refill container main body 20 are joined is at least 0.01 mm, preferably 0. It is suitable that it is 05 mm or more and 2.0 mm or less. That is, if the bonding area between the two is too small, the adhesion may be insufficient, and conversely if too large, the refill container 10 may be bulky and it may be difficult to achieve the legal volume ratio. . In addition, although the joint surface of both is a horizontal surface in this example, for example, when the flange portion 32 is entirely inclined from the base side, the step surface 23 on the refill container main body 20 side according to the inclination angle. It is desirable to secure a region where both are joined without gaps.

  Further, from the same concept, the gap (indicated by S in FIG. 5) between the outer peripheral surface of the peripheral wall of the concave lid portion 31 and the peripheral wall (inner peripheral side) of the opening of the refill container body 20 is at least 0.01 mm, preferably 0. It is preferable that it is 0.05 mm or more and 2.0 mm or less. That is, if the gap S is too narrow, it is difficult to disengage, and conversely, if it is too wide, the refill container 10 may become bulky and it may be difficult to achieve the legal volume ratio.

  As described above, in the refill container 10 shown in FIG. 5, the convex part 32 c of the flange part 32 of the inner lid 30 and the annular groove 24 of the refill container main body 20 engage with each other, and the concave part 32 d of the flange part 32. The step surface 23 of the refill container body 20 is engaged with each other. Thereby, since the inner lid 30 is in close contact with the refill container main body 20, the contents that are the contents are unlikely to leak. When the sealing material 40 is provided (returning to FIG. 1), the upper surface opening of the refill container 10 has a double structure of the sealing material 40 and the inner lid 30. Therefore, the refill container 10 is excellent in shape retention strength, and the hermeticity and shape retention are maintained even if it is distributed in the market as it is.

  Next, the sealing material 40 will be described. The material of the sealing material 40 is the kind of resin constituting the refill container main body 20 and / or the inner lid 30, the kind of contents, the desired adhesion, and barrier properties (for light rays such as oxygen, moisture, ultraviolet rays, and / or fragrances. The material can be appropriately selected according to the barrier property. Examples of the material of the sealing material 40 include aluminum seal, PE, PP, polyester (PET, etc.), polyamide, etc., or an unstretched or stretched film thereof. For example, in the present invention, an aluminum seal is preferable from the viewpoint of airtightness. Of course, a single layer sealing material, at least two layers, preferably two or three layers sealing material and a layer made of an inorganic material (eg aluminum oxide, silicon dioxide) and an organic material (eg PET) or a composite material. Alternatively, a sealing material having a barrier property against oxygen and moisture may be used.

  However, the sealing material 40 is preferably bonded to the refill container body 20 and not bonded to the inner lid 30. That is, when the sealing material 40 is peeled off, the inner lid 30 is prevented from being peeled off together. If necessary, a hot melt, an adhesive (preferably an easily peelable adhesive), an adhesive, or the like may be used at the joint between the sealing material 40 and the refill container body 20. In the present invention, the shape of the sealing material 40 is not limited, but it is a film-shaped (or sheet-shaped) single-layer sealing material or a laminated sealing material.

  And it is preferable that the said sealing material 40 has the performance (easy peel property) which can make the high sealing performance at the time of transport and storage compatible with the easy opening property at the time of use. The strength (peeling strength) when the sealing material 40 is peeled off is not limited as long as it can be peeled off by human hands. For example, the peel strength can be measured by measuring the maximum strength when the sealing material 40 is grasped using a force gauge and opened in the 45 ° direction (45 ° peel test). The peel strength is preferably 5 N / 15 mm or more and 30 N / 15 mm or less, more preferably 7 N / 15 mm or more and 25 N / 15 mm or less, and further preferably 10 N / 15 mm or more and 20 N / 15 mm or less.

  Next, a method for using the refill container of the present invention will be described. As shown in FIG. 2, when the refill container 10 is accommodated in the wide-mouth container 1, the cap 3 and / or the shoulder ring 2a are removed as necessary, and the refill container 10 is placed in the wide-mouth container member 2b. The guide flange 21 is engaged with the upper end of the peripheral wall of the opening of the wide-mouth container member 2b. Then, the shoulder ring 2a is attached, the threaded portion provided on the inner peripheral side of the shoulder ring 2a and the threaded portion of the wide-mouthed container member 2b are joined together, and the guide flange 21 is connected to the shoulder ring 2a and the wide-mouthed container member 2b. The shoulder ring 2a is tightened so as to be sandwiched between the two. Thereafter, the cap 3 is attached to the threaded portion 22 of the refill container main body 20 by being engaged. Thereby, the refill container 10 is accommodated in the wide-mouthed container 1. When the refill container 10 has the sealing material 40, the sealing material 40 is peeled off from the refill container main body 20.

  When using the contents of the refill container 10, first, the cap 3 of the wide-mouth container 1 is rotated and removed. Next, the inner lid 30 engaged with the upper surface opening of the refill container body 20 is removed, and the contents filled in the refill container body 20 are taken out. Since the inner lid 30 of the refill container 10 is not firmly fitted to the refill container main body 20 but merely detachably engaged, the handle 33 is easily picked each time it is used. It is easy to use.

  Next, the refill container product of the present invention will be described. The refill container product is a product (refill container-packed product) in which the refill container 10 (see FIG. 1) of the present invention is filled with contents. In the refill container product of the present invention, the opening of the refill container 10 of the present invention is sealed using the sealing material 40, and is excellent in airtightness and shape retention. The product in the present invention is determined according to the type of contents, and examples of the product include foods, cosmetics, and pharmaceuticals.

  In the above-mentioned refill container product, examples of the contents filled in the refill container 10 include foods, cosmetics, pharmaceuticals, etc., and those having fluidity (preferably fluid and relatively high in viscosity). Is suitable. The properties of the contents include properties such as liquid, jelly, paste, cream, and emulsion.

  And the said refill container product, for example, after filling the refill container body 20 of the refill container 10 with the contents, the inner lid 30 is attached to the opening of the refill container body 20, and then the opening of the refill container body 20 The portion can be obtained by hermetically wrapping by using a sealing material 40 by a method such as heat sealing or ultrasonic fusion.

  Next, the double container product of the present invention will be described. The double container product is a product in which the refill container product of the present invention is accommodated in the wide-mouth container 1 (see FIG. 2). The said double container product can be easily obtained by accommodating the refill container product of the present invention in the wide mouth container 1 according to the form of the wide mouth container 1, for example. In this case, since the inside of the refill container 10 is double protected by the inner lid 30 of the refill container 10 and the cap 3 of the wide-mouthed container 1, deterioration of the quality of the contents is effectively prevented. In addition, the contents are not easily damaged even when subjected to an impact from the outside. The sealing material 40 provided in the refill container product is usually peeled off and accommodated in the wide-mouthed container 1. However, the sealing material 40 is attached to the refill container product until it reaches the consumer. There is no problem.

  The present invention is not limited to the configuration of each of the embodiments described above, and design changes can be made without departing from the scope of the invention.

  INDUSTRIAL APPLICATION This invention can be utilized for the refill container which can distribute | circulate by itself, or the refill container accommodated detachably in a wide mouth container.

DESCRIPTION OF SYMBOLS 10 Refill container 20 Refill container main body 23 Step surface 30 Middle cover 31 Concave cover part 32 Flange part 33 Picking piece 40 Sealing material

Claims (6)

A refill container accommodated in a wide-mouth container,
The refill container has a substantially bottomed cylindrical refill container main body, and an inner lid that covers the opening of the refill container main body,
On the upper end surface of the opening edge of the refill container main body, a protrusion is provided on the outer side, and on the inner side, a step surface formed as a paragraph lower than the upper end surface is provided , and an annular groove is formed on the step surface. Is formed ,
The inner lid includes a concave lid portion that covers the opening of the refill container main body, a flange portion that projects outward from the upper end of the peripheral wall of the concave lid portion, and a knob formed on the concave surface of the concave lid portion. And
A protrusion is formed on the upper surface of the flange portion of the inner lid, and an inclined portion inclined obliquely downward at an angle of 10 ° or more and 80 ° or less with respect to a horizontal plane is formed on the peripheral portion of the flange portion. The lower surface of the part is a convex part that enters the annular groove of the refill container body,
The refill container, wherein the convex part on the lower surface of the inclined part of the flange part enters the annular groove of the refill container body, whereby the flange part is engaged with the stepped surface of the refill container body. The inner lid is a single piece of flexible resin, refill container according to claim 1 Symbol placement above the tab is adapted to protrude obliquely upwardly by its own elasticity. The knob is composed of a rising portion that rises from the bottom surface of the concave lid portion of the inner lid, and a knob that extends from the rising portion, and the thickness of the rising portion is 1 / th of the thickness of the knob. The refill container according to claim 1 or 2, which is set in a range of 3 or more and 2/3 or less. The refill container according to any one of claims 1 to 3 , wherein the refill container is filled with contents, and the upper surface of the refill container is sealed with a sealing material, wherein the sealing material is an opening edge of the refill container main body. A refill container product, characterized in that the flange part of the inner lid is sandwiched between the sealing material and the stepped surface of the refill container body. The inner lid is an integrally molded product of a flexible resin, and when the sealing material is sealed, the knob piece lies down along the lower surface of the sealing material. The refill container product according to claim 4 , wherein the refill container product protrudes obliquely upward due to elasticity. 6. A double container product, wherein the refill container product according to claim 4 or 5 is contained in a wide-mouth container.

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