Container, container with cover, plug mechanism, and plug mechanism with cover

Abstract

The present invention is a container (7) capable of engaging with a lid, the container (7) being provided with: a container main body (3) provided with a housing part (1) for housing contents, and a mouth part (2) that is tightly fixed to the upper end of the housing part (1); a middle plug (4) covering the upper end of the mouth part (2), the middle plug (4) being provided with a nozzle (41) and a mounting part (43), the nozzle (41) protruding upwards and having a spiral protrusion (42) on the outer peripheral surface, the mounting part being located below the nozzle (41); and an attachment ring (5) which covers a part of the outside of the middle plug (4) and which engages with the mouth (2) from the outer peripheral side, the cap (8) being capable of being screwed and engaged with the nozzle (41), the attachment ring (5) and the middle plug (4) being removable from the mouth (2) of the container body (3) by rotating the attachment ring (5) with respect to the mouth (2), and the rotation of the middle plug (4) with respect to the mouth (2) being restricted in the assembled state of the container (7).

Description

Technical Field

[0001] The present invention relates to a container capable of exhausting its contents to the last, a container with a lid, a stopper mechanism installed at the mouth of the container, and a lid-equipped stopper mechanism. Background Art

[0002] In recent years, the awareness of "SDGs (Sustainable Development Goals)", which is used to create a sustainable society, has increased rapidly. Even in the field of cosmetics, containers that can exhaust their contents to the last have attracted attention.

[0003] For example, in Patent Document 1, a structure is proposed in which a stopper body is detachably fitted into the wide mouth of a tube container, and the stopper body is removed to exhaust the remaining cosmetics in the tube without waste to the last.

[0004] <Prior Art Documents>

[0005] <Patent Documents>

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2008-254769 Summary of the Invention

[0007] <Problems to be Solved by the Invention>

[0008] However, in the structure of Patent Document 1, both the engagement between the lid and the mouth of the container and the engagement between the mouth of the container and the stopper body are screw engagements, and the engagement portion of the mouth with the lid is located below the engagement portion with the stopper body. Therefore, when the lid is tightened or the contents adhere to the inside of the lid, the stopper body may accidentally come off together with the lid when the lid is removed.

[0009] Therefore, in view of the above circumstances, an object of the present invention is to provide a container that can prevent the co-rotation of the middle plug when the lid is opened and closed and can exhaust its contents to the last.

[0010] <Means for Solving the Problems>

[0011] To solve the above problems, in one aspect of the present invention, there is provided a container that can be engaged with a lid, the container including:

[0012] A container body having a storage portion for storing contents and a mouth portion hermetically fixed to the upper end of the storage portion;

[0013] A middle plug covering the upper end of the mouth portion, having a nozzle protruding upward and having a spiral protrusion on the outer peripheral surface, and a mounting portion located below the nozzle; and

[0014] An installation ring that covers the outside of the installation part of the middle plug and engages with the mouth part from the outer peripheral side.

[0015] The lid can be screwed and engaged with the nozzle.

[0016] By rotating the installation ring relative to the mouth part, the installation ring and the middle plug can be removed from the mouth part of the container body.

[0017] In the assembled state of the container, the rotation of the middle plug relative to the mouth part is restricted.

[0018] <Effects of the Invention>

[0019] According to one aspect, in the container of the present invention, it is possible to prevent the co-rotation of the middle plug when the lid is opened and closed, and it is possible to use up the content to the last. Description of the Drawings

[0020] Figure 1 It is an overall half-sectional view of the lid-equipped container of the first embodiment of the present invention.

[0021] Figure 2 It is an exploded view of the lid-equipped container of the first embodiment.

[0022] Figure 3 It is an enlarged cross-sectional view near the mouth part of the lid-equipped container of the first embodiment.

[0023] Figure 4 It is an explanatory view of the rotation restricting part of the middle plug and the mouth part of the first embodiment.

[0024] Figure 5 It is an explanatory view showing the state of removing the lid from the container of the first embodiment.

[0025] Figure 6 It is an explanatory view showing the state of removing the installation ring and the middle plug from the container body of the first embodiment.

[0026] Figure 7 It is a view showing the usage state of the container body when the remaining amount of the content becomes small.

[0027] Figure 8 It is an enlarged cross-sectional view near the mouth part of the lid-equipped container of the second embodiment.

[0028] Figure 9 It is a perspective view of the middle plug of the second embodiment.

[0029] Figure 10 It is a perspective view of the removed installation ring, middle plug, and lid of the second embodiment.

[0030] Figure 11It is an explanatory view showing a state in which the mounting ring and the plug are removed from the container body of the second embodiment.

[0031] Figure 12 It is an enlarged cross-sectional view near the mouth part of the covered container of the third embodiment.

[0032] Figure 13 It is a perspective view of the plug of the third embodiment.

[0033] Figure 14 It is a perspective view of the mounting ring, the plug, and the lid removed in the third embodiment.

[0034] Figure 15 It is an explanatory view showing a state in which the mounting ring and the plug are removed from the container body of the third embodiment.

[0035] Figure 16 It is an explanatory view of the operation when the plug mechanism of the third embodiment is mounted on the mouth part. Detailed Embodiment

[0036] Hereinafter, embodiments for implementing the present invention will be described with reference to the drawings. Hereinafter, in each drawing, the same reference numerals are assigned to the same structural parts, and repeated descriptions may be omitted.

[0037] The present invention relates to a container, a covered container, a plug mechanism mounted on the mouth part of the container, and a covered plug mechanism. The container is, for example, a flexible tube container made of resin, metal film, paper, etc. Alternatively, the container may be an independent container.

[0038] The content stored in the container of the present invention is preferably a viscous substance such as cosmetics, toothpaste, or seasoning that is not used up at once but used in several portions. In this specification, the viscous substance refers to viscous cosmetics such as beauty liquids, creams, hair waxes, ointments, and toothpastes, viscous drugs, and viscous soaps that have viscosity.

[0039] <First Embodiment>

[0040] First, Figures 1 to 4 The structure of the container of the first embodiment of the present invention will be described. Figure 1 It is an overall half-sectional view of the covered container of the first embodiment of the present invention. Figure 2 It is an exploded view of the covered container of the first embodiment. Figure 3 It is an enlarged cross-sectional view near the mouth part of the covered container of the first embodiment. Figure 4 It is an explanatory view of the rotation restricting part of the plug and the mouth part of the first embodiment.

[0041] Referring to Figure 1 , the covered container 10 has a container 7 and a lid 8. Referring to Figure 2, the container (tubular container) 7 includes a housing portion 1, a mouth portion 2, a stopper 4, and a mounting ring 5.

[0042] The housing portion 1 houses the contents. The housing portion 1 is, for example, a flexible housing such as a tube. The mouth portion 2 is a wide-mouthed cylindrical ring tightly fixed to the upper end of the housing portion. During the circulation process after manufacturing, the housing portion 1 and the mouth portion (mouth portion member) 2 are tightly combined, and the housing portion 1 and the mouth portion 2 form a container body (tubular container body) 3.

[0043] In this example, the housing portion 1 is a tube, starting from Figure 2 above, it has a tube shoulder 11, a body portion 12, and a tail portion 13.

[0044] When the housing portion 1 is a tube, the housing portion 1 is formed of, for example, a thin-walled resin film, a metal film (such as aluminum), a laminated film of a resin film and a metal film, a film with an inorganic substance vapor-deposited on the resin film, a synthetic rubber, paper, or other flexible raw materials with soft flexibility.

[0045] In addition, the housing portion 1 is not limited to a tube with a linearly closed tail portion 13. For example, it can also be a bottomed flexible container such as a cylindrical shape or a prismatic outer shape, such as a bag-shaped container. Or, the housing portion 1 can also be a double-layer container in which a flexible inner bag is housed in a rigid container.

[0046] The mouth portion 2 is a cylindrical portion with a hole portion 20 formed in the center, having a ring-side shoulder 23 at the lower part, and on the outer peripheral surface, a plurality of protrusions (rotation restricting protrusions) 24 as cylindrical protrusions are provided at the upper part, and a spiral protrusion (screw engagement protrusion, thread protrusion) 25 is provided below it.

[0047] The mouth portion 2 is formed of, for example, a resin more rigid than the housing portion 1. The hole portion 20 of the wide-mouthed mouth portion 2 has an inner diameter such that a user can insert a finger to wipe the contents.

[0048] Specifically, referring to Figure 2 , Figure 3 , the mouth portion 2 of the present embodiment is, from above (front end side), a small-diameter cylinder 21, a large-diameter cylinder 22, and a ring-side shoulder 23. Moreover, in the present embodiment, a plurality of protrusions 24 as cylindrical protrusions (small protrusions) are provided on the outer side surface of the small-diameter cylinder 21, and a spiral protrusion 25 is provided on the outer side surface of the large-diameter cylinder 22.

[0049] In addition, as Figure 3 shown, on the outside of the lower ring-side shoulder 23, the tube shoulder 11 is tightly installed by insert molding, heat fusion bonding, adhesion, etc. Thus, the housing portion 1 and the mouth portion 2 are tightly combined to form a container body 3 that does not separate even when the plug mechanism 6 is removed.

[0050] In addition, the middle plug 4 is a plug member having a nozzle 41 formed on the upper side and a mounting portion 43 formed on the lower side. The nozzle 41 protrudes upward, and a small hole 40 for extruding the content outward is formed at the apex, and spiral protrusions 42 are provided on the outer peripheral surface. Further, the nozzle 41 has a small-diameter thin nozzle 41n on the upper side and a large-diameter thick nozzle 41k on the lower side. The spiral protrusions 42 are formed on the outer peripheral surface of the thick nozzle 41k.

[0051] In addition, referring to Figure 3 and Figure 4 , the mounting portion 43 of the middle plug 4 in the present embodiment has an annular closing plate 44 that extends outward from the lower end of the nozzle 41, and concentric outer cylinder 45 and inner cylinder 46 that hang down from the annular closing plate 44. Further, on the inner side surface of the outer cylinder 45, a plurality of teeth (angular protrusions) 47 in the shape of an internal gear are provided. Additionally, the inner cylinder 46 may not be provided.

[0052] The mounting ring 5 is a tubular member that covers the outside of the mounting portion 43 which is a part of the lower portion of the middle plug 4 and engages with the outside of the mouth portion 2, and is a tubular member for mounting.

[0053] In the present embodiment, regarding the mounting ring 5, its outer peripheral surface is uniform, but it has a step on the inside. The upper part of the tubular portion is a thick wall portion 51, and the lower part is a thin wall portion 52. At the upper end of the thick wall portion 51, an upper end ring 55 that extends inward is provided, and at the inner edge of the upper end ring 55, a plurality of rib protrusions 53 that intermittently protrude toward the center are provided at a certain height in the vertical direction. On the inner side surface of the thin wall portion 52, spiral protrusions 54 are provided.

[0054] Here, as Figure 3 , Figure 4 shows, on the outer peripheral surface of the mouth portion 2, spiral protrusions 25 that are screwed and engaged with the mounting ring 5, and a plurality of protrusions 24 that are located above the spiral protrusions 25 and near the upper end of the mouth portion 2 are provided.

[0055] In addition, in the mounting portion 43 on the lower side of the nozzle 41 of the middle plug 4, an annular closing plate 44 that extends outward from the lower end of the nozzle 41 is provided. A connecting ring 45A hangs down from the periphery of the lower surface of the annular closing plate 44, and an outer annular plate 442 that extends outward from the lower end of the connecting ring 45A is provided. Further, an outer cylinder (tubular portion) 45 having a plurality of teeth 47 in the shape of an internal gear formed on the inner side surface and an inner cylinder 46 having a diameter smaller than that of the outer cylinder 45 hang down from the lower surface of the outer annular plate 442. On the outer peripheral surface of the connecting ring 45A, an annular protrusion 45P is provided. Additionally, in Figure 3 , an example is shown in which the annular closing plate 44 of the middle plug 4 is located above the upper surface of the upper end ring 55 of the mounting ring 5, but the positional relationship of this part of the structure may also be different (refer to Figure 5 ).

[0056] Here, the middle plug 4 is engaged with the mounting ring 5 to form an integrated plug mechanism 6 that cannot be disassembled by the user. However, in the following Figure 2 , Figure 5 etc., for the sake of illustration, the middle plug 4 and the mounting ring 5 are shown disassembled.

[0057] When assembling the plug mechanism 6 in the manufacturing process, by covering the middle plug 4 from above with the mounting ring 5 and applying a force to press the mounting ring 5 downward, the rib protrusion 53 of the upper end ring 55 of the mounting ring 5 crosses over the annular protrusion 45P on the outer peripheral surface of the connecting ring 45A of the middle plug 4. When crossing over, the rib protrusion 53 of the mounting ring 5 or the annular protrusion 45P of the middle plug 4 elastically deforms in a collapsed manner. Therefore, at least one of the middle plug 4 and the mounting ring 5 is made of a raw material that elastically deforms. The raw material that elastically deforms is preferably made of rubber such as NBR (nitrile rubber), or resins such as PP (polypropylene), PE (polyethylene), POM (polyoxymethylene), PBT (polybutylene terephthalate), etc.

[0058] As Figure 3 shown, in the assembled state of the container 7, the upper end of the small-diameter cylinder 21, which is the upper end of the mouth part 2 on the container body 3 side, is clamped between the outer cylinder 45 and the inner cylinder 46 of the middle plug 4. Thus, the lateral position of the middle plug 4 relative to the mouth part 2 is substantially limited.

[0059] Furthermore, as Figure 4 shown, the plurality of protrusions 24 of the mouth part 2 are clamped between the teeth of the plurality of teeth 47 of the middle plug 4, that is, in the tooth grooves 47G. Thus, in the assembled state of the container 7, the rotation of the middle plug 4 relative to the mouth part 2 is restricted.

[0060] In addition, as Figure 1 , Figure 3 shown, the container 7, which is a tube container, can be engaged with the cap 8.

[0061] Referring to Figure 3 , on the cap 8, there are provided a top surface 81, a press plug protrusion 82, a hanging cylinder 83, an outer peripheral cylinder 84, and a spiral groove 85 is formed inside the hanging cylinder. The press plug protrusion 82 hangs down from the center of the lower surface of the top surface 81. The hanging cylinder 83 hangs down from the top surface 81 and surrounds the nozzle 41 during engagement, and a spiral groove 85 is provided on the inner periphery. When the cap 8 is engaged with the container 7, the spiral groove 85 is screwed and engaged with the spiral protrusion 42 of the nozzle 41. The outer peripheral cylinder 84 is located at a position more peripheral than the hanging cylinder 83 and is a cylinder concentric with the hanging cylinder 83.

[0062] In the covered container 10, the cap 8 is engaged with the nozzle 41. Therefore, in the state where the cap 8 is engaged with the container 7, as Figure 1 , Figure 3 shown, the cap 8 covers the nozzle 41 of the middle plug 4 and the outer peripheral surface of the mounting ring 5 is exposed.

[0063] Next, the disassembly and assembly of the container and the lid in the first embodiment will be described. Figure 5 FIG. is a view showing a state in which the lid is removed from the container of the first embodiment. In Figure 5 FIG., the shape of the middle plug 4 is slightly different from that of Figure 5 FIG., and a structure is shown in which the annular protrusion 45P is not provided and the annular closing plate 44 and the upper end ring 55 of the mounting ring 5 are in the same plane, but other shapes are the same as those of Figures 1 to 4 FIG. Figures 1 to 4 FIG.

[0064] As shown in Figure 5 FIG., by rotating the lid 8 while approaching the nozzle 41 of the container 7, the spiral groove 85 of the vertical cylinder 83 of the lid 8 shown in Figure 3 FIG. engages with the spiral protrusion 42 of the nozzle 41, and the lid 8 is attached to the container 7.

[0065] On the other hand, by rotating the lid 8 relative to the middle plug 4 from the engaged state, the engagement between the spiral groove 85 of the lid 8 and the spiral protrusion 42 of the nozzle 41 is released, and the lid 8 is removed from the container 7.

[0066] Figure 6 FIG. is an explanatory view showing a state in which the mounting ring 5 and the middle plug 4 are removed from the container body 3 of the first embodiment. In Figure 6 FIG., the upper right half of the plug mechanism 6 shows the inside of the mounting ring 5 with the middle plug 4 cut away for clarity. In addition, Figure 6 the shape of the middle plug 4 in Figure 5 FIG. is the same as that in Figures 1 to 4 FIG., showing an example slightly different from that in

[0067] As described above, a spiral protrusion 25 is provided on the outer peripheral surface of the mouth portion 2 of the container body 3, and a spiral protrusion 54 is provided on the inner peripheral surface of the mounting ring 5. Therefore, the middle plug 4 and the mounting ring 5 are engaged with the container body 3 by the engagement of the spiral protrusion 25 of the mouth portion 2 and the spiral protrusion 54 of the mounting ring 5.

[0068] In addition, in the manufacturing stage, the mounting ring 5 and the middle plug 4 are connected in such a manner that the rib protrusion 53 of the mounting ring 5 crosses the annular protrusion 45P and faces the connecting ring 45A. The height of the region below the annular protrusion 45P provided on the connecting ring 45A is longer than the protrusion thickness of the rib protrusion 53.

[0069] By this engagement, the middle plug 4 is rotatable relative to the mounting ring 5 and is engaged with a certain play in the vertical direction in a state where the mounting ring 5 and the middle plug 4 are detached from the container body 3, that is, in a state where they are independent as the plug mechanism 6.

[0070] In addition, in Figure 3In this example, a circular protrusion 45P is provided on the outer side surface of the middle plug 4. However, in the case of the structure of Figure 5 it is constructed as follows: As the engaging object of the multiple rib protrusions 53 on the mounting ring 5, a circular groove is formed on the outer side surface (the outside of the connecting ring 45A) of the circular closing plate 44 of the middle plug 4, and the rib protrusions 53 are engaged with the circular groove. In this structure, during the manufacturing stage, the rib protrusions 53 of the mounting ring 5 pass over the upper outer end of the circular closing plate 44 and are engaged with the circular groove. The protrusion thickness of the rib protrusions 53 is set slightly thinner than the groove width of the circular groove. Thus, the middle plug 4 can rotate freely relative to the mounting ring 5 and is engaged with a certain amount of play in the vertical direction.

[0071] Therefore, when removing the plug mechanism 6 from the engaged state, by applying a force greater than a given force while holding the container body 3, the mounting ring 5 is rotated relative to the container body 3, so that the mounting ring 5 rotates relative to the mouth portion 2 while the middle plug 4 is restricted in the rotational direction, and the screw engagement between the mounting ring 5 and the mouth portion 2 is gradually released.

[0072] Then, when the mounting ring 5 moves upward relative to the mouth portion 2, the outer cylinder 45 of the middle plug 4 also moves upward relative to the mouth portion 2 along with the mounting ring 5, so that the multiple protrusions 24 of the mouth portion 2 move away from the tooth grooves 47G located between the multiple teeth 47 of the middle plug 4, and the engagement between the tooth grooves 47G and the protrusions 24 is released.

[0073] Immediately afterwards, by further rotating the mounting ring 5 relative to the container body 3, only the mounting ring 5 rotates, the screw engagement between the mounting ring 5 and the mouth portion 2 is completely released, and the plug mechanism 6 is separated from the container body 3.

[0074] On the other hand, when installing the plug mechanism 6 from the separated state, by holding the container body 3 and bringing the plug mechanism 6 closer and rotating the mounting ring 5 relative to the container body 3, the screw engagement between the mounting ring 5 and the mouth portion 2 starts to engage, and the mounting ring 5 and the middle plug 4 gradually approach the receiving portion 1 while rotating relative to the container body 3. When the screw engagement progresses to a certain extent and the multiple teeth 47 at the inner lower end of the outer cylinder 45 of the middle plug 4 start to contact the mouth portion 2, the protrusions 24 of the mouth portion 2 are inserted into the tooth grooves 47G located between the multiple teeth 47, and the rotation of the middle plug 4 relative to the mouth portion 2 is restricted.

[0075] By further rotating the mounting ring 5 relative to the container body 3, thus with the middle plug 4 restricted in the rotational direction, the screw engagement between the mounting ring 5 and the mouth portion 2 proceeds, and the rotation ends at the ends of the spiral protrusions 54 and 25.

[0076] Thus, in a state where the plug mechanism 6 is installed on the container body 3, the mounting ring 5 is screwed and engaged with the mouth portion 2, and the rotation of the middle plug 4 with respect to the mouth portion 2 is restricted. Therefore, the rotation of the mounting ring 5 with respect to the container body 3 is restricted.

[0077] By engaging the container body 3 with the plug mechanism 6 in this way, for example, it is possible to rotate the cap 8 by holding a part of the mounting ring 5 and disassemble and assemble the cap 8 with respect to the container 7.

[0078] Here, if the spiral protrusion 25 of the mouth portion 2 on the outer peripheral side shown in Figure 4 and Figure 6 and the spiral protrusion 42 of the nozzle 41 are compared, the spiral protrusion 25 of the mouth portion 2 that engages with the plug mechanism 6 has a larger diameter of the outer peripheral surface forming the spiral than the spiral protrusion 42 of the nozzle 41 that engages with the cap. In addition, the pitches of the spirals of the spiral protrusion 25 of the mouth portion 2 and the spiral protrusion 42 of the nozzle 41 are different.

[0079] Therefore, when engaging with the mouth portion 2 of the container body 3 in a manner held by the mounting ring 5 of the plug mechanism 6, it is possible to engage independently of the cap 8.

[0080] Furthermore, by fitting the protrusion 24 at the upper end of the outer periphery of the mouth portion 2 into the tooth grooves 47G between the respective teeth 47 of the inner gear shape on the inner side surface of the outer cylinder 45 of the middle plug 4, it functions as a rotation stop portion of the middle plug 4 with respect to the mouth portion 2.

[0081] Therefore, for example, even in a state where the following occurs, due to the positional relationship and the rotation restriction function, the plug mechanism 6 is hardly affected by the rotation of the cap 8, and the plug mechanism 6 is hardly co-rotated with the cap 8.

[0082] (1) The content adheres to the outside of the nozzle 41 and solidifies

[0083] (2) The cap 8 is screwed too tightly with respect to the nozzle 41

[0084] In addition, even in a case where the cap 8 is stubbornly engaged due to the above (1), (2), etc., since the torsional force generated by rotation is directly applied by rotating the cap 8 while holding the mounting ring 5, the screwed engagement between the cap 8 and the nozzle 41 can be released.

[0085] In addition, as shown in Figure 6 , since the middle plug 4 and the mounting ring 5 can be disassembled and assembled with respect to the container body 3, the container body 3 can be replaced as a replacement part with respect to the middle plug 4 and the mounting ring 5.

[0086] That is, the container body 3 composed of the housing part 1 and the mouth part 2 becomes a replacement part (also called a refill) that can be replaced (detachably replaced) together with the viscous substance as the content. On the other hand, the plug mechanism 6 composed of the middle plug 4 and the mounting ring 5 and the cap 8 are reused after replacing the replacement part.

[0087] Therefore, the emptied container body 3 can be replaced with a new replacement part of the same shape, and the plug mechanism 6 and the cap 8 can be reused repeatedly. Thus, the amount of resin to be discarded can be reduced.

[0088] The container body 3 for replacement, which can be replaced as a replacement part, can have its upper surface covered with a film or a cover surrounding the mouth part 2. Thus, the container body 3 as a replacement part can be circulated as a single unit.

[0089] In addition, the plug mechanism 6 and the cap 8 can also be circulated separately, so that repeat customers who buy replacement parts multiple times can replace the using part repeatedly when there is noticeable dirt, breakage, or deterioration on the plug mechanism 6 and the cap 8. Furthermore, as shown in Figure 7 , a capped plug mechanism in a state where the plug mechanism 6 is engaged with the cap 8 can be circulated.

[0090] Figure 7 The usage state of the container when the remaining amount of the content has become less is shown.

[0091] By removing the plug mechanism 6 from the container body 3, the user can insert members such as fingers or cotton swabs into the housing part 1 (tube) of the container body 3 and use up the content to the last. Thus, the content discarded after use can be reduced together with the container body 3.

[0092] In addition, when the plug mechanism 6 is removed from the container body 3, the mounting ring 5 is rotated relative to the container body 3 while keeping the state with the cap 8 unchanged, whereby the plug mechanism 6 and the cap 8 can be removed together.

[0093] Accordingly, as shown in Figure 7 , the cap 8 can be placed downward, so the other hand will not get dirty during replacement, and it is possible to prevent the placement place such as the table or washbasin where the plug mechanism 6 is temporarily placed from getting dirty. In addition, since the middle plug 4 and the cap 8 can be placed on the table or the like without worrying about the dirt of the placement place, both hands are free, and as shown in Figure 7 , it is possible to squeeze the container body 3 with one hand while wiping the content with the other hand.

[0094] <Second Embodiment>

[0095] Next, the structure of the container according to the second embodiment of the present invention will be described using Figures 8 to 11 .

[0096] Figure 8 It is an enlarged cross-sectional view near the mouth part of the covered container 10A of the second embodiment. Figure 9 It is a perspective view of the middle plug 4A of the second embodiment. Figure 10 It is a perspective view of the mounting ring 5A, the middle plug 4A, and the lid 8A removed in the second embodiment. Figure 11 It is an explanatory view showing a state where the mounting ring 5A and the middle plug 4A are removed from the container body 3A of the second embodiment. Hereinafter, the description will be centered on the differences from the first embodiment.

[0097] Refer to Figure 8 and Figure 9 , below the nozzle 41 of the middle plug 4A in this embodiment is the mounting portion 43A, an annular closing plate 441 extending outward from the lower end of the nozzle 41 is provided, a connecting ring 45A hangs down from the periphery of the lower surface of the annular closing plate 441, and an outer annular plate 442 extending outward from the lower end of the connecting ring 45A is provided. A ring-shaped protrusion 45P is provided on the outer side surface of the connecting ring 45A. In addition, at the lower end of the nozzle 41, a pair of nozzle protrusions 41P may be provided. The nozzle protrusions 41P are protrusions for giving a clicking feeling when the lid 8 rotates and is completely closed. When the rotation of the lid 8A ends, the pair of nozzle protrusions are sandwiched by anti-rotation protrusions (not shown) provided near the lower end of the inner peripheral surface of the outer peripheral cylinder 84A of the lid 8A.

[0098] Furthermore, a relatively long hanging piece 48 and a relatively short hanging piece 49 are provided so as to hang down from the outer peripheral edge of the lower surface of the outer annular plate 442. In addition, below the outer annular plate 442, an inner cylinder 46 is provided on the inner peripheral side of the hanging pieces 48 and 49. Figure 8 It is a cross-sectional view of the surface passing through the relatively long hanging piece 48 of the middle plug 4A.

[0099] Refer to Figure 8 and Figure 10 , the mounting ring 5A is provided with a thin wall portion 52 and a thick wall portion 51A from the lower side, and an upper end ring (annular top surface) 55 is further provided above the thick wall portion 51A. In this embodiment, at a certain height in the vertical direction, a plurality of rib protrusions 53A extending intermittently toward the center side are provided on the inner edge of the upper end ring 55. In addition, a spiral protrusion 54A is provided on the inner side surface of the thin wall portion 52, and a plurality of inner peripheral recesses 56 for thread stamping during manufacturing are formed at the lower end.

[0100] Refer to Figure 8 and Figure 11, regarding the mouth part 2A of the present embodiment, the upper side of its annular side shoulder 23 is the main body cylinder 200 with an unchanging inner diameter. On the outer peripheral surface of the main body cylinder 200 of the mouth part 2A, there are provided a spiral protrusion 25A that is screwed and engaged with the mounting ring 5, a long strip-shaped groove 26 that extends upward and downward in a way that interrupts the spiral protrusion 25A, and a short outer peripheral concave part 27 that is near the upper end of the mouth part 2A and does not contact the spiral protrusion 25A.

[0101] In Figure 11 , below the bolt mechanism 6A, the shape of the mounting part 43A of the middle bolt 4A is shown through the mounting ring 5A. As Figure 11 shown, the long hanging piece 48 of the middle bolt 4A is engaged with the strip-shaped groove 26 of the mouth part 2A, and the short hanging piece 49 is engaged with the outer peripheral concave part 27, whereby the rotation of the middle bolt 4A and the container body 3A is restricted. Figure 8 The cross-sectional view of

[0102] In addition, as described above, an annular protrusion 45P is provided on the outer side surface of the connection ring 45A of the middle bolt 4A, and a plurality of rib protrusions 53A are provided on the inner edge of the upper end ring 55 in the mounting ring 5A. In the manufacturing stage, the mounting ring 5A and the middle bolt 4A are connected in such a way that the rib protrusions 53A of the mounting ring 5A cross over the annular protrusion 45P and face the connection ring 45A. The height ( Figure 9 the length A) of the area of the connection ring 45A below the annular protrusion 45P is longer than the protrusion thickness of the rib protrusion 53.

[0103] Therefore, in the present embodiment, in the bolt mechanism 6A, when the mounting ring 5A and the middle bolt 4A are in the state of being removed from the container body 3A (the state of being independent as the bolt mechanism 6A), the middle bolt 4A can rotate freely relative to the mounting ring 5A, and the position in the vertical direction can move within the range shown by the arrow A in Figure 8 . Specifically, in the state of being independent as the bolt mechanism 6A, the hanging piece 48 is engaged with a larger clearance than the structure of the first embodiment in such a way that it can move to a position extending from the lower end of the mounting ring 5A.

[0104] In the present embodiment, when the bolt mechanism 6A is removed from the engaged state of the container 7A, by holding the container body 3A while applying a force greater than a given force, the mounting ring 5A is rotated relative to the container body 3A, whereby the state where the middle bolt 4A is restricted in the rotational direction is maintained unchanged while the mounting ring 5A rotates relative to the mouth part 2A, and the screwed engagement between the mounting ring 5A and the mouth part 2A is gradually released.

[0105] Then, by further rotating the mounting ring 5A relative to the container body 3A, after the screw engagement between the mounting ring 5A and the mouth portion 2A is completely released, by lifting the plug mechanism 6A relative to the container body 3A, the longer hanging piece 48 of the middle plug 4A is pulled out from the strip-shaped groove 26 of the mouth portion 2A, and the engagement between the middle plug 4A and the mouth portion 2A is released.

[0106] On the other hand, when installing the plug mechanism 6A from the separated state, first, while rotating the plug mechanism 6A, the longer hanging piece 48 of the middle plug 4A is aligned with the position of the longer strip-shaped groove 26 of the mouth portion 2A, and the longer hanging piece 48 is inserted into the longer strip-shaped groove 26. At this time, the shorter hanging piece 49 is fitted into the outer peripheral groove 27.

[0107] Then, when holding the container body 3A and rotating the mounting ring 5A relative to the container body 3A, the screw engagement between the mounting ring 5A and the mouth portion 2A starts. In a state where the middle plug 4A is restricted in the rotational direction, the mounting ring 5A gradually approaches the accommodating portion 1 while rotating relative to the container body 3A, and the screw engagement between the mounting ring 5A and the mouth portion 2A is advanced to the ends of the spiral protrusions 25A, 54A.

[0108] In the installed state like this, the mounting ring 5A is screwed and engaged with the mouth portion 2A, and the rotation of the middle plug 4A relative to the mouth portion 2A is restricted. Therefore, the rotation of the plug mechanism 6A relative to the container body 3A is restricted.

[0109] According to the above engagement structure, the container 7A of the present embodiment can also prevent the co-rotation of the middle plug 4A when the lid 8 is opened and closed. Furthermore, since the plug mechanism 6 is detachable, the contents in the accommodating portion 1 can be used up to the last.

[0110] <Third Embodiment>

[0111] Next, the container of the third embodiment of the present invention will be described. Use Figures 12 to 15 The structure of the container of the third embodiment of the present invention will be described.

[0112] Figure 12 is an enlarged cross-sectional view near the mouth portion of the lid-equipped container 10B of the third embodiment. Figure 13 is a perspective view of the middle plug of the third embodiment. Figure 14 is a perspective view of the mounting ring 5A, the middle plug 4B, and the lid 8B taken off in the third embodiment. Figure 15 is an explanatory view showing a state where the mounting ring 5A and the middle plug 4B are taken off from the container body 3B of the third embodiment. In Figure 15 the middle plug 4B is shown through in the mounting ring 5A.

[0113] Refer toFigure 12 and Figure 13 In the mounting portion 43B below the nozzle 41 of the middle plug 4B in the present embodiment, similar to the second embodiment, an annular closing plate 441, a connecting ring 45B, an outer annular plate 442, an annular projection 45Q, an inner cylinder 46, and a plurality of hanging pieces 49B are provided. However, the difference is that a long hanging piece 48 is not provided. Further, in the connecting ring 45B of the present embodiment, the position of the annular projection 45Q is lower than that in the second embodiment. The plurality of hanging pieces 49B in the present embodiment are preferably even numbers, and an example of four, namely 491, 492, 493, and 494, is shown in the present embodiment.

[0114] Refer to Figure 12 and Figure 14 , the structure of the mounting ring 5A in the present embodiment is the same as that in the second embodiment, and is provided with a thin-walled portion 52 provided with a spiral projection 54 and a plurality of inner peripheral recesses 56, a thick-walled portion 51A, and an upper end ring 55 provided with a plurality of rib projections 53A.

[0115] In the present embodiment, similar to the second embodiment, during the manufacturing stage, the mounting ring 5 is connected to the middle plug 4B in such a manner that the rib projection 53A of the mounting ring 5A passes over the annular projection 45Q of the middle plug 4B and faces the connecting ring 45B.

[0116] In the present embodiment, since the position of the annular projection 45Q is lower than that in the second embodiment, in the state where the mounting ring 5A and the middle plug 4B are removed from the container body 3B, that is, in the state of being independent as the plug mechanism 6B, the middle plug 4B is rotatable relative to the mounting ring 5A, and is engaged with a certain play (a play smaller than that in the second embodiment) in the vertical direction.

[0117] Refer to Figure 12 and Figure 15 , the structure of the mouth portion 2B is very different from that in the first embodiment and the second embodiment.

[0118] Refer to Figure 12 , in the mouth portion 2B, in the cylindrical portion above the ring-side shoulder 23, the inner side surface is a small-diameter cylinder 21B and a large-diameter cylinder 22B from above (front end side), and the outer side surface of the cylindrical portion is a thin-walled region 200n and a thick-walled region 200k from above.

[0119] Refer to Figure 15 , in the lower thick-walled region 200k, a spiral groove 29 that is screwed and engaged with the spiral projection 54 of the mounting ring 5A is formed. Moreover, in the thick-walled region 200k, a plurality of strip-shaped grooves 26B that are continuous from the thin-walled region 200n and extend vertically in a manner that interrupts the spiral groove 29 are formed.

[0120] The thin-walled region 200n is a region with a relatively thin outer side in the outer peripheral surface of the mouth portion 2B from the upper end up to the stepped surface ST parallel to the upper end. Additionally, in the figure, the cross-section ST shows a structure parallel to the upper end, but the cross-section ST serving as the region boundary can also be inclined to be parallel to the spiral groove.

[0121] In the thin-walled region 200n, a plurality of rib protrusions 28 are provided that extend in the vertical direction from the upper end of the mouth portion 2B to the stepped surface ST, with one groove wall 261 of each groove of the specified strip-shaped groove 26B as the first side in the circumferential direction. In other words, at the upper end of the mouth portion 2B, a plurality of thin-walled regions 200n and a plurality of rib protrusions 28 are alternately arranged in the circumferential direction, and the circumferential length of each rib protrusion 28 is shorter than that of the thin-walled region 200n. Additionally, as Figure 15 shown, the thickness of the rib protrusion 28 in the circumferential direction is thinner than that of the thick region 200k.

[0122] Furthermore, the lid 8B that engages with the container 7B can also be a double-layer cylinder structure. Figure 12 The lid 8B shown has a top-covered cylindrical outer lid 86 and a substantially cylindrical inner lid 87. The outer lid 86 has a top surface 81B and an outer wall 841. The inner lid 87 is structured such that its side wall has an inner outer wall 842 that contacts the outer wall 841 of the outer lid 86, an inner cylinder 83B formed with a spiral groove 85B, and an inner top surface 88 that is away from the top surface 81B. At the vertex of the inner top surface, a hanging plug 82B for closing the small hole 40 of the nozzle 41 is provided. Additionally, at the lower end of the inner outer wall 842 of the inner lid 87, it is preferable to provide an anti-rotation protrusion or anti-rotation groove (not shown) that engages with the paired nozzle protrusions 41P of the nozzle 41 (refer to Figure 13 ) when the rotation of the lid 8B ends.

[0123] In the present embodiment, a part of the hanging pieces 49B of the middle plug 4B, namely the hanging pieces 491 and 493, engages with the strip-shaped groove 26B.

[0124] Specifically, in the present embodiment, when detaching the plug mechanism 6B from the engaged state with the container 7B, by holding the container body 3B while applying a force greater than a given force, the mounting ring 5A is rotated relative to the container body 3B, thereby maintaining the state where the middle plug 4B is restricted in the rotational direction unchanged while the mounting ring 5A rotates relative to the mouth portion 2B, and the screw engagement between the mounting ring 5A and the mouth portion 2B is gradually released.

[0125] Then, by rotating the mounting ring 5A relative to the container body 3B, the middle plug 4B also gradually moves upward relative to the mouth portion 2B. In the middle process, a part of the hanging pieces 49B of the middle plug 4B, namely the hanging pieces 491 and 493, are pulled out upward from the strip-shaped groove 46B.

[0126] From this state, the mounting ring 5A is further rotated relative to the container body 3B, whereby the lower end of the hanging piece 49B of the plug 4B moves circumferentially while sliding on the step surface ST. Then, at the same time as or before the sliding hanging piece 49B collides with the rib protrusion 28, it reaches the end of the screw engagement between the spiral groove 29 and the spiral protrusion 54, and the plug mechanism 6B is lifted from this position, whereby the plug mechanism 6B is separated from the mouth portion 2B.

[0127] On the other hand, regarding the operation in the case of mounting the plug mechanism 6B, it will be described using Figure 16 as follows. Figure 16 It is an explanatory view of the operation when the plug mechanism of the third embodiment is mounted to the mouth portion. In addition, in Figure 16 the hanging pieces 491 and 492 are shown, but the hanging piece 493 performs the same operation as 491, and the hanging piece 494 performs the same operation as the hanging piece 492.

[0128] When mounting the mounting ring 5B and the plug 4B to the mouth portion 2B, when the user brings the plug mechanism 6B close to the mouth portion 2B and rotates it, as shown in Figure 16 (a) of, some of the hanging pieces 49B of the plug 4B, the hanging pieces 491 and 493, slide on the step ST between the thin-walled region 200n and the thick-walled region 200k of the mouth portion 2B.

[0129] Then, as shown in Figure 16 (b) of, a part of the hanging pieces 49B, the hanging pieces 491 and 493, are guided to the strip-shaped groove 26B.

[0130] In a state where a part of the hanging pieces 491 and 493 are guided into the strip-shaped groove 26B and the hanging pieces 491 and 493 move downward relative to the strip-shaped groove 26B and are engaged by fitting, as shown in Figure 16 (c) of, one side surface of the other hanging pieces 492 and 494 of the plurality of hanging pieces 49B comes into contact with the circumferential side edge 38S of the rib protrusion 28, so that the rotation of the mounting ring 5A and the plug 4B relative to the container body 3B is restricted.

[0131] After that, by further rotating the mounting ring 5A while holding the container body 3B, the screw engagement between the mounting ring 5A and the mouth portion 2B starts. In a state where the rotation of the plug 4B is restricted in the rotational direction, the mounting ring 5A rotates relative to the mouth portion 2B while gradually approaching the housing portion 1, and the screw engagement between the mounting ring 5A and the mouth portion 2B is advanced to the ends of the spiral groove 29 and the spiral protrusion 54.

[0132] In this way, in the mounted state, the mounting ring is screwed and engaged with the mouth portion, and the rotation of the plug 4B relative to the mouth portion 2B is restricted, so that the rotation of the plug mechanism 6B relative to the container body 3A is restricted.

[0133] According to the above engagement structure, the container 7B of the present embodiment can also prevent the co-rotation of the plug 4B when the lid is opened and closed. Furthermore, since the plug mechanism 6B is detachable, the contents in the accommodating portion 1 can be used up to the last drop.

[0134] In addition, in the structure of the present embodiment, when installing the plug mechanism 6B, the user only needs to Figure 16 rotate it as such without intentionally aligning the hanging pieces 49B with the strip-shaped groove 26B. Some of the multiple hanging pieces 49B, such as the hanging pieces 491 and 493, automatically engage with the strip-shaped groove 26B as they rotate. Thus, the plug mechanism 6B can be more simply installed on the container body 3B.

[0135] As described above, the preferred embodiments of the present invention have been described in detail. However, the present invention is not limited to these specific embodiments, and various modifications and changes can be made within the scope of the gist of the embodiments of the present invention described in the claims.

[0136] This international application claims priority based on Japanese Patent Application No. 2022-210917 filed on December 27, 2022, and incorporates the entire content of 2022-210917 into this international application.

[0137] Reference Numeral Explanation

[0138] 1: Accommodating portion (tube)

[0139] 11: Tube shoulder

[0140] 12: Body portion

[0141] 13: Tail

[0142] 2, 2A, 2B: Mouth portion

[0143] 200: Main body cylinder

[0144] 200k: Thick-walled region

[0145] 200n: Thin-walled region

[0146] 21, 21B: Small-diameter cylinder

[0147] 22, 22B: Large-diameter cylinder

[0148] 23: Ring-side shoulder

[0149] 24: Protrusion (rotation limiting protrusion, small protrusion)

[0150] 25, 25A: Spiral protrusion

[0151] 26, 26B: Strip-shaped groove

[0152] 27: Outer peripheral recess

[0153] 28: Rib projection

[0154] 29: Helical groove

[0155] 3, 3A, 3B: Container body (replacement part container)

[0156] 4: Plug (plug body)

[0157] 40: Small hole

[0158] 41: Nozzle

[0159] 41n: Fine nozzle

[0160] 41k: Coarse nozzle

[0161] 42: Helical projection

[0162] 43: Mounting part

[0163] 44, 441: Annular closing plate

[0164] 45: Outer cylinder

[0165] 45A, 45B: Connecting ring

[0166] 45P, 45Q: Annular projection

[0167] 46: Inner cylinder

[0168] 47: Multiple teeth

[0169] 47: Tooth groove

[0170] 48: Longer hanging piece

[0171] 49: Shorter hanging piece (hanging piece)

[0172] 49B: Hanging piece

[0173] 491, 493: Hanging piece (part of hanging piece)

[0174] 492, 494: Hanging piece (other hanging piece)

[0175] 5, 5A: Mounting ring

[0176] 51: Thick wall part

[0177] 52: Thin wall part

[0178] 53, 53A: Rib projection

[0179] 54: Helical projection

[0180] 55: Upper end ring

[0181] 6, 6A, 6B: Bolt mechanism

[0182] 7, 7A, 7B: Container (pipe container)

[0183] 8, 8B: Lid

[0184] 10, 10A, 10B: Container with lid

[0185] ST: Step

Claims

1. A container that can be snap-fitted with a lid, comprising: A container body having a storage portion for storing contents and a mouth portion hermetically fixed to the upper end of the storage portion; A middle plug covering the upper end of the mouth portion, formed with a nozzle and a mounting portion, the nozzle protruding upward and having spiral protrusions on its outer peripheral surface, and the mounting portion being located below the nozzle; and A mounting ring covering the outside of the mounting portion of the middle plug and engaging with the mouth portion from the outer peripheral side, The lid can be screwed and engaged with the nozzle, By rotating the mounting ring relative to the mouth portion, the mounting ring and the middle plug can be removed from the mouth portion of the container body, In the assembled state of the container, the rotation of the middle plug relative to the mouth portion is restricted.

2. The container according to claim 1, wherein On the outer peripheral surface of the mouth portion, there are provided spiral protrusions that are screwed and engaged with the mounting ring, and a plurality of rotation restricting protrusions located above the spiral protrusions and near the upper end of the mouth portion, On the mounting portion below the nozzle of the middle plug, a cylindrical portion is provided, and a plurality of teeth in the shape of an internal gear are formed at the lower end of the inner side surface of the cylindrical portion, By sandwiching the plurality of rotation restricting protrusions of the mouth portion in the tooth grooves between the respective teeth of the plurality of teeth of the middle plug, the rotation of the mounting ring and the middle plug relative to the mouth portion is restricted.

3. The container according to claim 1, wherein On the mounting portion below the nozzle of the middle plug, a long hanging piece and a short hanging piece that are long in the vertical direction are provided at the outer edge in the radial direction, On the outer peripheral surface of the mouth portion, there are provided spiral protrusions that are screwed and engaged with the mounting ring, a long strip-shaped groove extending vertically to interrupt the spiral protrusions, and a short strip-shaped groove located near the upper end of the mouth portion and not in contact with the spiral protrusions, By engaging the long hanging piece of the middle plug with the long strip-shaped groove and the short hanging piece with the short strip-shaped groove, the rotation of the mounting ring and the middle plug with respect to the container body is restricted.

4. The container according to claim 1, wherein On the mounting portion below the nozzle of the middle plug, a plurality of hanging pieces are provided, The outer peripheral surface of the mouth portion has a thick-walled region formed with a spiral groove that is screwed and engaged with the mounting ring and a thin-walled region from the upper end of the mouth portion to the step at the upper end of the thick-walled region, In the thick-walled region, a plurality of strip-shaped grooves are formed that are continuous from the thin-walled region and extend vertically to interrupt the spiral groove, In the thin-walled region, a plurality of rib protrusions are provided with one groove wall of each of the plurality of strip-shaped grooves as the circumferential first side and extending in the vertical direction from the upper end of the mouth portion to the step, A part of the hanging pieces of the plurality of hanging pieces of the middle plug is engaged with the strip-shaped groove.

5. The container according to claim 4, wherein When the mounting ring and the middle plug are mounted relative to the mouth portion, the plurality of hanging pieces slide on the stepped surface between the thin wall region and the thick wall region, and a part of the hanging pieces are guided into the strip-shaped groove. In a state where a part of the hanging pieces are guided into the strip-shaped groove and engaged therewith, one side surface of the other hanging pieces of the plurality of hanging pieces contacts the circumferential side edge of the rib protrusion, whereby the rotation of the mounting ring and the middle plug relative to the container body is restricted.

6. The container according to claim 1, wherein in a state where the mounting ring and the middle plug are removed from the container body, the middle plug is rotatable relative to the mounting ring and is engaged therewith with a clearance in the vertical direction.

7. The container according to claim 1, wherein the container body can be replaced as a replacement relative to the middle plug and the mounting ring.

8. A container with a lid, comprising: the container according to any one of claims 1 to 7; and the lid that can be screwed and engaged with the nozzle of the container.

9. A plug mechanism is a plug mechanism mounted on the mouth portion of the container body of the container, wherein a spiral protrusion is formed on the outer peripheral surface of the mouth portion of the container body. The plug mechanism includes: a middle plug that covers the upper end of the mouth portion and is formed with a nozzle protruding upward and a mounting portion located below the nozzle; and a mounting ring that covers the outside of the mounting portion of the middle plug and engages with the mouth portion from the outer peripheral side. In a state where the plug mechanism is mounted on the container body, the rotation of the middle plug relative to the mouth portion is restricted. By rotating the mounting ring relative to the mouth portion, the plug mechanism can be removed from the mouth portion of the container body.

10. A lid-equipped plug mechanism, comprising: the plug mechanism according to claim 9; and a lid that can be engaged with the plug mechanism. A spiral protrusion is provided on the outer peripheral surface of the nozzle. The lid can be screwed and engaged with the nozzle. By rotating the mounting ring relative to the mouth portion, the plug mechanism and the lid can be removed together from the mouth portion of the container body.

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