Cap unit and container with cap

Abstract

The present invention provides a lid unit and a lidded container. The lid unit simplifies the construction of mounting an inner plug relative to an outer lid and improves the cleanability of the outer lid and the inner plug. A lid unit (1A) is mounted on a container body (2) with an upper opening in a removable manner, comprising: an outer lid (9) surrounding the upper part of the container body (2), an inner plug (10) inserted into the inner side of the container body (2) from the upper opening (2a) of the container body (2), and a disassembly and assembly mechanism (11A) for removably mounting the inner plug (10) relative to the outer lid (9). The disassembly and assembly mechanism (11A) is configured such that the inner plug (10) is mounted on the outer lid (9) by rotating the inner plug (10) about an axis from a dismounted position eccentric to the central axis of the outer lid (9) relative to the central axis of the inner plug (10) to an mounting position where the central axis of the outer lid (9) coincides with the central axis of the inner plug (10).

Description

Technical Field

[0001] This invention relates to lid units and lidded containers. Background Technology

[0002] Previously, there was a lidded container that included a lid unit (plug) which was detachably mounted to the neck of the container body with an upper opening, thereby closing the upper opening of the container body (for example, see Patent Documents 1 and 2 below).

[0003] Such a lid unit has the following structure: an outer lid covering the neck of the container body, and an inner plug inserted into the inside of the container body from the upper opening, the outer lid or the inner plug being screwed onto the lid body.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2019-001538

[0005] Patent Document 2: Japanese Patent Application Publication No. 2019-001539

[0006] However, in the aforementioned lidded container, it is very difficult to clean between the outer lid and the inner plug when cleaning the lid unit. Therefore, a structure that can be divided into an outer lid and an inner plug is adopted in the lid unit to improve cleaning performance.

[0007] However, in existing cover units, when the structure becomes capable of being divided into an outer cover and an inner plug, there are problems such as making the structure (removal mechanism) for installing the inner plug relative to the outer cover more complex. Summary of the Invention

[0008] The present invention was made in view of the existing situation, and aims to provide a lid unit that simplifies the construction of mounting the inner plug relative to the outer cover and improves the cleanability of the outer cover and the inner plug, and a lidded container that further improves ease of use by having such a lid unit.

[0009] To achieve the above objectives, the present invention provides the following solutions.

[0010] [1] A lid unit that is detachably mounted to a container body with an upper opening, characterized in that it comprises:

[0011] The outer cover surrounds the upper part of the container body;

[0012] An inner plug, which is inserted into the inner side of the container body from the upper opening of the container body; and

[0013] The disassembly and assembly mechanism allows for the easy installation and removal of the inner plug relative to the outer cover.

[0014] The aforementioned disassembly and assembly mechanism has the following structure: by rotating the inner plug around the axis from the removal position where the central axis of the outer cover is eccentric to the central axis of the inner plug, to the installation position where the central axis of the outer cover is aligned with the central axis of the inner plug, the inner plug is installed on the outer cover.

[0015] [2] A cover unit that is detachably mounted to a container body with an upper opening, characterized in that it comprises:

[0016] The outer cover surrounds the upper part of the container body;

[0017] An inner plug, which is inserted into the inner side of the container body from the upper opening of the container body; and

[0018] The disassembly and assembly mechanism allows for the easy installation and removal of the inner plug relative to the outer cover.

[0019] The aforementioned disassembly and assembly mechanism has the following structure: after rotating the inner plug about an axis from the unloading position where it is eccentric to the center axis of the outer cover relative to the center axis of the inner plug, the inner plug is slid to the installation position, thereby installing the inner plug onto the outer cover.

[0020] [3] The cover unit described in [1] or [2] above is characterized in that,

[0021] In the removed position, the inner plug is inserted from the top into the opening on the upper part of the outer cover, so that the flange of the inner plug protruding from the outer periphery of the upper end in the expansion direction abuts against the periphery of the opening of the outer cover, thereby making the inner plug locked into the outer cover.

[0022] [4] The cover unit described in [3] above is characterized in that,

[0023] The above-mentioned disassembly and assembly mechanism has the following features:

[0024] The guide engagement portion, by engaging a first engagement portion provided on the outer cover with a second engagement portion provided on the inner plug, guides the inner plug relative to the outer cover in a rotatable manner between the removed position and the installed position; and

[0025] The rotating locking part, when the inner plug is rotated to the installation position, causes the locking part of either the first locking part provided on the outer cover or the second locking part provided on the inner plug to lock with the locking part of the other.

[0026] [5] The cover unit described in [3] above is characterized in that,

[0027] The above-mentioned disassembly and assembly mechanism has the following features:

[0028] The guide engagement portion, by engaging a first engagement portion provided on the outer cover with a second engagement portion provided on the inner plug, guides the inner plug relative to the outer cover in a rotatable manner between the removed position and the installed position; and

[0029] The sliding locking part, when the inner plug is slid to the installation position, locks either the locking part of the first locking part provided on the outer cover or the locking part of the second locking part provided on the inner plug with the locking part of the other.

[0030] [6] The cover unit described in [4] or [5] above is characterized in that,

[0031] When the locking part of one of the aforementioned parts locks into the locking part of the other part, a clicking sensation is imparted.

[0032] [7] The cover unit according to any one of [1] to [6] above is characterized in that,

[0033] The aforementioned inner plug or the aforementioned outer cover is screwed onto the aforementioned container body.

[0034] [8] The cover unit according to any one of [1] to [7] above is characterized in that,

[0035] It is equipped with a waterproof sealing component, which is installed as a whole with the outer periphery of the lower end side of the inner plug to seal the container body and the inner plug.

[0036] [9] A lidded container, characterized in that it comprises:

[0037] The cover unit described in any of [1] to [8] above; and

[0038] The container body is equipped with the aforementioned cover unit.

[0039] As described above, according to the present invention, it is possible to provide a lid unit that simplifies the construction of mounting the inner plug relative to the outer cover and improves the cleanability of the outer cover and the inner plug, and a lidded container that further improves ease of use by having such a lid unit. Attached Figure Description

[0040] Figure 1 This is a perspective view showing the appearance of a covered container having the cover unit according to the first embodiment of the present invention.

[0041] Figure 2 It means possessing Figure 1 The diagram shows a cross-sectional view of the structure of a covered container.

[0042] Figure 3 It indicates that the inner plug is relative to Figure 2 The diagram shows the outer cover of the cover unit in its installation position.

[0043] Figure 4 It is relative to the inner plug Figure 2 The diagram shows a partial cut-out perspective view of the outer cover of the cover unit in its installation position.

[0044] Figure 5 It indicates that the inner plug is relative to Figure 2 The image shows a bottom view of the outer cover of the cover unit in its installed position.

[0045] Figure 6 It indicates that the inner plug is relative to Figure 1 The diagram shows a cross-sectional view of the cover unit in the removed position.

[0046] Figure 7 It indicates that the inner plug is relative to Figure 6 The diagram shows the outer cover of the cover unit in the removed position.

[0047] Figure 8 It is relative to the inner plug Figure 6 The diagram shows a partial cut-out perspective view of the outer cover of the cover unit in the removed position.

[0048] Figure 9 It indicates that the inner plug is relative to Figure 6 The diagram shows a bottom view of the cover unit in the removed position.

[0049] Figure 10 It indicates that the inner plug is relative to Figure 1 The diagram shows a bottom view of the cover unit in a position between the removed and installed positions.

[0050] Figure 11 Viewed from above Figure 1 A perspective view of the outer cover of the cover unit shown.

[0051] Figure 12 yes Figure 1 The diagram shows a bottom view of the outer cover of the cover unit.

[0052] Figure 13 Viewed from above Figure 1 A perspective view of one side of the inner plug of the cover unit shown.

[0053] Figure 14 Viewed from below Figure 1 A perspective view of one side of the inner plug of the cover unit shown.

[0054] Figure 15 Viewed from above Figure 1 A perspective view of the other side of the inner plug of the cover unit shown.

[0055] Figure 16 Viewed from below Figure 1 A perspective view of the other side of the inner plug of the cover unit shown.

[0056] Figure 17 yes Figure 1 The top view of the inner plug of the cover unit shown.

[0057] Figure 18 yes Figure 1 The diagram shows a bottom view of the inner plug of the cover unit.

[0058] Figure 19 This is a perspective view showing the appearance of a covered container having the cover unit according to the second embodiment of the present invention.

[0059] Figure 20 It indicates that the inner plug is relative to Figure 19 The diagram shows the outer cover of the cover unit in its installation position.

[0060] Figure 21 It is relative to the inner plug Figure 19 The diagram shows a partial cut-out perspective view of the outer cover of the cover unit in its installation position.

[0061] Figure 22 It indicates that the inner plug is relative to Figure 19 The image shows a bottom view of the outer cover of the cover unit in its installed position.

[0062] Figure 23 It indicates that the inner plug is relative to Figure 19 The diagram shows a horizontal sectional view of the outer cover of the cover unit in its installed position.

[0063] Figure 24A In the inner plug relative to Figure 19 The diagram shows the main part of the guide engagement portion viewed from below and from one perspective, with the outer cover of the cover unit in the installed position.

[0064] Figure 24B In the inner plug relative to Figure 19 The diagram shows the main part of the guide engagement portion in a perspective view, viewed from below and from another angle, with the outer cover of the cover unit in the installed position.

[0065] Figure 25 In the inner plug relative to Figure 19The diagram shows the main portion of the sliding locking part viewed from below, with the outer cover of the cover unit in the installed position.

[0066] Figure 26 It indicates that the inner plug is relative to Figure 19 The diagram shows the outer cover of the cover unit in the removed position.

[0067] Figure 27 It is relative to the inner plug Figure 19 The diagram shows a partial cut-out perspective view of the outer cover of the cover unit in the removed position.

[0068] Figure 28 It indicates that the inner plug is relative to Figure 19 The diagram shows a bottom view of the cover unit in the removed position.

[0069] Figure 29 It indicates that the inner plug is relative to Figure 19 The diagram shows a horizontal sectional view of the outer cover of the cover unit in the removed position.

[0070] Figure 30A In the inner plug relative to Figure 19 The diagram shows the main part of the guide engagement section viewed from below and from one perspective, with the outer cover of the cover unit in the removed position.

[0071] Figure 30B In the inner plug relative to Figure 19 The diagram shows the main part of the guide engagement portion viewed from below and from another perspective, with the outer cover of the cover unit in the removed position.

[0072] Figure 31 In the inner plug relative to Figure 19 The diagram shows the main part of the sliding locking part viewed from below, with the outer cover of the cover unit in the removed position.

[0073] Figure 32 It indicates that the inner plug is relative to Figure 19 The diagram shows the outer cover of the cover unit in the middle position.

[0074] Figure 33 It is relative to the inner plug Figure 19 The diagram shows a partial cut-out perspective view of the outer cover of the cover unit, which is located in the middle position.

[0075] Figure 34 It indicates that the inner plug is relative to Figure 19 The top view shows the outer cover of the cover unit in the middle position.

[0076] Figure 35 It indicates that the inner plug is relative to Figure 19 The diagram shows a horizontal sectional view of the outer cover of the cover unit in the middle position.

[0077] Figure 36A In the inner plug relative to Figure 19 The diagram shows the main part of the guide engagement portion viewed from below and from one perspective, with the outer cover of the cover unit in the middle position.

[0078] Figure 36B In the inner plug relative to Figure 19 The diagram shows the main part of the guide engagement portion viewed from below and from another perspective, with the outer cover of the cover unit in the middle position.

[0079] Figure 37 In the inner plug relative to Figure 19 The main part perspective view of the sliding locking part is shown from below, with the outer cover of the cover unit in the middle position.

[0080] Figure 38 Viewed from above Figure 19 A perspective view of the outer cover of the cover unit shown.

[0081] Figure 39 Viewed from below Figure 19 A perspective view of one side of the outer cover of the cover unit shown.

[0082] Figure 40 Viewed from below Figure 19 A perspective view of the other side of the outer cover of the cover unit shown.

[0083] Figure 41 Viewed from below Figure 19 A perspective view of one side of the inner plug of the cover unit shown.

[0084] Figure 42 Viewed from below Figure 19 A perspective view of the other side of the inner plug of the cover unit shown.

[0085] Explanation of reference numerals in the attached figures

[0086] 1A, 1B... Cover unit; 2... Container body; 3... Outer container; 4... Inner container; 5... Vacuum insulation layer; 6... Internal threaded part; 7... Protrusion; 8... Cover body; 9... Outer cover; 9c... Opening; 10... Inner plug; 10d... Flange; 10e... First recess; 10f... Second recess; 10g... Third protrusion; 11A, 11B... Disassembly and assembly mechanism; 12... Lower side plug component; 13... Upper side plug component; 14... External threaded part; 15... Waterproof sealing component; 16... First engaging part; 16a, 16b... Cut-out recess; 16c, 16d... Guide wall; 16e, 16f, 16g, 16h... Stop part; 17... Second engaging part; 17a, 17b... Rib wall; 17c, 17d... Guide groove; 18. 19... First locking part; 20... Second locking part; 21... Rotation locking part; 22... First locking part; 22a, 22b, 22c... Cutout recess; 22d, 22e, 22f... Guide wall; 22g, 22h... Stop part; 23... Second locking part; 23a, 23b, 23c... Rib wall; 23d, 23e, 23f... Guide groove; 24... Guide locking part; 25... First locking part; 25a, 25b... Locking protrusion; 26... Second locking part; 26a, 26b... Locking recess; 27... Sliding locking part; 28... Marking protrusion; 29... Marking recess; 30... Protrusion; 31a... Sliding groove; 31b... Sliding protrusion; 31c... Sliding rib; 100A, 100B... Container with lid. Detailed Implementation

[0087] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0088] (First Embodiment)

[0089] First, as a first embodiment of the present invention, for example, a device having Figures 1-18 The lidded container 100A of the lid unit 1A shown will be described.

[0090] in addition, Figure 1 This is a perspective view showing the appearance of a lidded container 100A equipped with a lid unit 1A. Figure 2 This is a cross-sectional view showing the structure of a covered container 100A with a cover unit 1A. Figure 3 This is a perspective view showing the state in which the inner plug 10 is positioned relative to the outer cover 9 of the cover unit 1A. Figure 4 This is a sectional perspective view showing the inner plug 10 in its installation position relative to the outer cover 9 of the cover unit 1A. Figure 5 This is a bottom view showing the state in which the inner plug 10 is positioned relative to the outer cover 9 of the cover unit 1A. Figure 6 This is a cross-sectional view showing the state in which the inner plug 10 is in the removed position relative to the outer cover 9 of the cover unit 1A. Figure 7 This is a perspective view showing the state in which the inner plug 10 is in the removed position relative to the outer cover 9 of the cover unit 1A. Figure 8 This is a cross-sectional perspective view showing the inner plug 10 in the removed position relative to the outer cover 9 of the cover unit 1A. Figure 9 This is a bottom view showing the state in which the inner plug 10 is in the removed position relative to the outer cover 9 of the cover unit 1A. Figure 10 This is a bottom view showing the state of the inner plug 10 relative to the outer cover 9 of the cover unit 1A, between the removed position and the installed position. Figure 11 This is a perspective view of the outer cover 9 of the cover unit 1A viewed from above. Figure 12 This is a bottom view of the outer cover 9 of the cover unit 1A. Figure 13 This is a perspective view of one side of the inner plug 10 of the cover unit 1A, viewed from above. Figure 14 This is a perspective view of one side of the inner plug 10 of the cover unit 1A as seen from below. Figure 15 This is a perspective view of the other side of the inner plug 10 of the cover unit 1A, viewed from above. Figure 16 This is a perspective view of the other side of the inner plug 10 of the cover unit 1A, viewed from below. Figure 17 This is a top view of the inner plug 10 of the cover unit 1A. Figure 18 This is a bottom view of the inner plug 10 of the cover unit 1A.

[0091] like Figure 1 as well as Figure 2 As shown, the lidded container 100A of this embodiment is a beverage container having a container body 2 with an upper opening and a lid unit 1A that can be easily installed and removed from the container body 2, and is capable of keeping the beverage (contents) contained in the container body 2 warm or cold.

[0092] Specifically, the container body 2 has an outer container 3 made of metal, such as stainless steel, and an inner container 4. The container body 2 has a vacuum insulation structure in which the open ends of the outer container 3, which is open at one end, is housed inside the inner container 4, which is open at one end, and the open ends of the inner container 4 are joined together near each other, and a vacuum insulation layer 5 is provided between the outer container 3 and the inner container 4.

[0093] The vacuum insulation layer 5 can be formed, for example, by sealing the vent hole located at the center of the bottom surface of the outer container 3 with brazing material within a chamber that has been depressurized (evacuated) to a high vacuum.

[0094] By incorporating such a vacuum insulation structure within the container body 2, the aforementioned functions of heat preservation or cold preservation are achieved. Furthermore, this vacuum insulation structure in the container body 2 creates a state where tension is constantly applied to the outer container 3 and the inner container 4 due to the difference between internal pressure (vacuum pressure) and external pressure (atmospheric pressure), thereby increasing the mechanical strength of the outer container 3 and the inner container 4. Consequently, even when the thickness of the outer container 3 and the inner container 4 is reduced, the rigidity of the container body 2 can be improved, thus enabling the container body 2 to be made lighter.

[0095] The container body 2 has a generally circular bottom portion 2b, a generally cylindrical cylindrical body portion 2c that rises from the outer periphery of the bottom portion 2b, and a generally cylindrical neck portion 2d that rises from the upper side of the cylindrical body portion 2c. Furthermore, the upper end of the neck portion 2d serves as the upper opening 2a of the container body 2 and has a circular opening.

[0096] An internal thread portion 6 is provided on the inner circumferential surface of the neck portion 2d. In addition, below the internal thread portion 6, an annular protrusion portion 7 is provided to protrude from the inner circumferential surface of the inner container 4 throughout the entire circumference.

[0097] Furthermore, while the lidded container 100A of this embodiment has a generally cylindrical external shape as a whole, there are no particular limitations on the external shape of the lidded container 100A, and appropriate changes can be made to match the size, appearance design, etc. In addition, coatings, printing, etc., can also be applied to the outer peripheral surface of the container body 2 (outer container 3).

[0098] In this embodiment, the cover unit 1A constitutes a cover that opens and closes the upper opening 2a of the container body 2. Specifically, as... Figures 2-18 As shown, the cover unit 1A includes a cover body 8, which closes the upper opening 2a of the container body 2 when it is inserted into the inner side of the container body 2 from the upper opening 2a. The cover body 8 has a structure that is screwed onto the container body 2.

[0099] The cover body 8 has: an outer cover 9 that covers the upper opening 2a of the container body 2; an inner plug 10 that is inserted into the inside of the container body 2 from the upper opening 2a; and a disassembly and assembly mechanism 11A that installs the inner plug 10 relative to the outer cover 9 in a detachable manner.

[0100] like Figure 2 , Figure 11 as well as Figure 12 As shown, the outer cover 9 is made of heat-resistant resin, for example, and has a peripheral wall portion 9a that is formed in a generally cylindrical shape in a manner that is continuous with the cylindrical portion 2c of the container body 2, an upper wall portion 9b that closes the upper outer peripheral side of the peripheral wall portion 9a, and an opening portion 9c that makes the upper wall portion 9b open in a generally circular shape.

[0101] like Figure 2 as well as Figures 13-18 As shown, the inner plug 10 is made of, for example, heat-resistant resin and has: a generally circular bottom wall portion 10a, a generally cylindrical peripheral wall portion 10b that rises from the periphery of the bottom wall portion 10a, a top wall portion 10c that closes the upper part of the peripheral wall portion 10b, and a flange portion 10d that protrudes from the peripheral wall portion 10b in the expansion direction.

[0102] The inner plug 10 has the following structure: a lower side plug member 12 with a bottom and a generally cylindrical shape forming a bottom wall portion 10a and a peripheral wall portion 10b, and an upper side plug member 13 with a generally circular shape forming a top wall portion 10c and a flange portion 10d. The lower side plug member 12 is integrally mounted on the lower surface of the upper side plug member 13 by means of welding or the like. In addition, the interior of the inner plug 10 may also be a structure in which the heat insulation material S is disposed, not limited to air as a heat insulation layer.

[0103] Furthermore, an external threaded portion 14 is provided on the outer peripheral surface of the peripheral wall portion 10b (inner plug 10). In the covered container 100A, the cover body 8 (cover unit 1A) is installed relative to the container body 2 in a detachable manner by screwing the external threaded portion 14 with the internal threaded portion 6. In addition, the internal threaded portion 6 and the external threaded portion 14 are composed of two threads that are complementary in shape to each other. With the use of two threads, the cover body 8 (cover unit 1A) can be installed and removed relative to the container body 2 with fewer rotation operations (approximately 180° in this embodiment).

[0104] A waterproof sealing element 15 is integrally installed on the outer periphery of the lower end side of the inner plug 10. The waterproof sealing element 15 is an annular sealing component that seals the space between the protrusion 7 of the container body 2 and the inner plug 10. It is made of, for example, heat-resistant rubber such as silicone rubber, or elastic components such as elastomers. The waterproof sealing element 15 is integrally formed with the inner plug 10 (cap body 8) by insert forming as described later.

[0105] The inner plug 10 has a first recess 10e with a shape corresponding to a first protrusion 15a protruding inward from the upper end of the inner peripheral side of the waterproof sealant 15, and a second recess 10f with a shape corresponding to a second protrusion 15b protruding upward from the lower end of the inner peripheral side of the waterproof sealant 15. Furthermore, the inner plug 10 has a third protrusion 10g located between the first protrusion 15a and the second protrusion 15b of the waterproof sealant 15, and has a shape corresponding to the third recess 15c of the waterproof sealant 15 formed between the first recess 10e and the second recess 10f of the inner plug 10.

[0106] In the cover unit 1A of this embodiment, the first protrusion 15a of the waterproof sealant 15 protruding inward is integrally formed with the first recess 10e of the inner plug 10, and the second protrusion 15b of the waterproof sealant 15 protruding upward is integrally formed with the second recess 10f of the inner plug 10. Furthermore, by integrally forming the third recess 15c of the waterproof sealant 15 with the third protrusion 10g of the inner plug 10, the bonding strength of the waterproof sealant 15, which is integrally mounted with the inner plug 10 (cover body 8), can be improved through their respective anchoring effects.

[0107] Furthermore, although the lower surface of the inner plug 10 has a shape that causes the bottom wall portion 10a to be recessed upwards, it is flush with the lower surface of the waterproof sealant 15. Therefore, at the boundary between the lower surface of the inner plug 10 and the lower surface of the waterproof sealant 15, it is difficult to peel the waterproof sealant 15 from the inner plug 10. In addition, there are no gaps near the boundary, so water droplets are less likely to accumulate, making it more hygienic.

[0108] Furthermore, two elastic flange portions 15d are provided on the outer peripheral surface of the waterproof sealant 15 in a manner that protrudes in the direction of diameter expansion. When the cap body 8 (cap unit 1A) is installed on the container body 2, the waterproof sealant 15 becomes such that the elastic flange portions 15d elastically deform and are in close contact with the protrusion 7 of the container body 2 throughout its entire circumference. As a result, a seal (waterproof) can be achieved between the protrusion 7 (container body 2) and the inner plug 10 (cap body 8).

[0109] Furthermore, the waterproof sealant 15 is not necessarily limited to the shape described above. For example, the number of elastic flange portions 15d is not limited to the two mentioned above, but can also be one or more.

[0110] Furthermore, the waterproof sealant 15 is not limited to the structure with the aforementioned elastic flange portion 15d, and its shape and other aspects can be appropriately modified. For example, it may also be a structure with an elastic flange portion having a shape that curves downward from the upper end of the outer peripheral surface of the waterproof sealant 15.

[0111] like Figures 2-18 As shown, the disassembly and assembly mechanism 11A has the following structure: the inner plug 10 is installed on the outer cover 9 by rotating the inner plug 10 about an axis from the unloading position where the central axis AX of the outer cover 9 is eccentric to the central axis BX of the inner plug 10 to the installation position where the central axis AX of the outer cover 9 is consistent with the central axis BX of the inner plug 10.

[0112] A mark 10h is provided on the top wall portion 10c of the inner plug 10 to indicate the removal position and the installation position. On the other hand, a mark 9d indicating the removal position and a mark 9e indicating the installation position are provided on the peripheral wall portion 9a of the outer cover 9. Thus, in the cover body 8, when the inner plug 10 is in the removal position relative to the outer cover 9, the marks 9d and 10h are consistent with each other, and when the inner plug 10 is in the installation position relative to the outer cover 9, the marks 9e and 10h are consistent with each other.

[0113] Specifically, the disassembly and assembly mechanism 11A includes: a guide engagement portion 18, which guides the inner plug 10 to rotate freely between the removed position and the installed position relative to the outer cover 9 by engaging the first engagement portion 16 provided on the outer cover 9 with the second engagement portion 17 provided on the inner plug 10; and a rotation locking portion 21, which, when the inner plug 10 is rotated to the installed position, locks the locking portion of either the first locking portion 19 provided on the outer cover 9 or the second locking portion 20 provided on the inner plug 10 (the second locking portion 20 in this embodiment) with the locking portion of the other (the first locking portion 19 in this embodiment).

[0114] like Figure 11 as well as Figure 12 As shown, the first engaging portion 16 has a pair of cut recesses 16a, 16b formed by cutting a portion of the upper wall portion 9b of the outer cover 9, and a pair of guide walls 16c, 16d protruding inward from between the pair of cut recesses 16a, 16b.

[0115] A pair of recessed cuts 16a and 16b are positioned opposite each other across the opening 9c of the outer cover 9, forming an arc-shaped cut that is off-center from the central axis AX of the outer cover 9.

[0116] A pair of guide walls 16c and 16d are part of the upper wall portion 9b located between a pair of notched recesses 16a and 16b, and are positioned opposite the opening 9c of the outer cover 9. Furthermore, to match the elliptical shape formed by adding a circle centered on the central axis BX of the inner plug 10 in the installed position and a circle centered on the central axis BX of the inner plug 10 in the removed position, one of the guide walls 16c and 16d protrudes more radially inward toward the outer cover 9 than the other guide wall 16d.

[0117] A pair of guide walls 16c and 16d are formed by cutting a portion of the lower surface of the upper wall portion 9b circumferentially. Furthermore, a pair of stop portions 16e and 16f are provided at the circumferential ends of the pair of guide walls 16c and 16d. On the other hand, stop portions 16g and 16h are provided on the opposite side of the guide walls 16c and 16d circumferentially across the cut recesses 16a and 16b.

[0118] On the other hand, such as Figures 13-18 As shown, the second engaging portion 17 has a pair of ribs 17a, 17b protruding outward from the peripheral wall portion 10b of the inner plug 10, and a pair of guide grooves 17c, 17d formed between the flange portion 10d of the inner plug 10 and the pair of ribs 17a, 17b.

[0119] A pair of ribs 17a and 17b are disposed on the inner plug 10 at positions opposite to the peripheral wall portion 10b. Furthermore, in accordance with the shape of the pair of cutout recesses 16a and 16b, one of the ribs 17a and 17b protrudes more radially outward from the inner plug 10 than the other rib 17b.

[0120] Thus, of the pair of guide grooves 17c and 17d, one guide groove 17c is formed between the flange portion 10d of the inner plug 10 and one rib wall 17a, and the other guide groove 17d is formed between the flange portion 10d of the inner plug 10 and the other rib wall 17b.

[0121] In the guide card assembly 18, Figures 6-9 In the removed position shown, with one side's notch recess 16a aligned with one side's rib wall 17a and the other side's notch recess 16b aligned with the other side's rib wall 17b, the inner plug 10 is inserted from above into the opening 9c of the outer cover 9. This results in the inner plug 10 being engaged with the outer cover 9 while the flange portion 10d of the inner plug 10 abuts against the upper wall portion 9b of the outer cover 9 located around the opening 9c. Furthermore, in Figures 6-9 In the removed position shown, the central axis AX of the outer cover 9 is eccentric relative to the central axis BX of the inner plug 10.

[0122] In the guide engagement portion 18, from this state, the inner plug 10 is rotated relative to the outer cover 9 toward one side of the arc located off-center from the central axis AX of the outer cover 9, where a pair of cut recesses 16a and 16b are cut. This results in one guide wall 16c engaging with one guide groove 17c, and the other guide wall 16d engaging with the other guide groove 17d. At this time, the direction in which the inner plug 10 rotates relative to the outer cover 9 about the axis is consistent with the direction in which the cover body 8 is installed on the container body 2 (closing direction).

[0123] Therefore, as Figure 10 As shown, the first engaging portion 16 and the second engaging portion 17 are engaged with each other. In the guide engaging portion 18, in this state, the inner plug 10 can be rotatably guided relative to the outer cover 9 between the removed position and the installed position.

[0124] like Figure 4 as well as Figure 12As shown, the first locking part 19 is composed of a pair of protrusions located on the lower surface of the upper wall part 9b and protruding inward from the middle of the circumferential direction of a pair of guide walls 16c, 16d.

[0125] On the other hand, such as Figures 13-16 as well as Figure 18 As shown, the second locking portion 20 is composed of a pair of recesses located in the middle of the circumferential direction of a pair of ribs 17a and 17b and cutting open a portion of the front end of the ribs 17a and 17b.

[0126] In the rotating locking part 21, the inner plug 10 is rotated relative to the outer cover 9 to... Figures 2-5 When installed in the position shown, it becomes locked in place by a pair of first locking parts 19 and a pair of second locking parts 20.

[0127] That is, in the disassembly and assembly mechanism 11A, when the inner plug 10 is rotated relative to the outer cover 9 to the installation position, while the pair of ribs 17a and 17b of the inner plug 10 are elastically deformed, the pair of first locking portions 19 pass over the pair of second locking portions 20 and lock with the pair of second locking portions 20. Thus, the outer cover 9 and the inner plug 10 become integrated.

[0128] Furthermore, in the rotating locking part 21, a clicking sensation is provided when either the locking part of the first locking part 19 or the second locking part 20 (the second locking part 20 in this embodiment) engages with the locking part of the other (the first locking part 19 in this embodiment).

[0129] exist Figures 2-5 In the installation position shown, the central axis AX of the outer cover 9 coincides with the central axis BX of the inner plug 10. Furthermore, the peripheral wall portion 9a of the outer cover 9 and the flange portion 10d of the inner plug are almost on the same plane as the outer peripheral surface of the cover body 8.

[0130] In the disassembly and assembly mechanism 11A having the structure described above, in Figures 6-9 In the removal position shown, while aligning the notch recess 16a of one side with the rib wall 17a of the other side and aligning the notch recess 16b of the other side with the rib wall 17b of the other side, the inner plug 10 is inserted into the opening 9c of the outer cover 9 from above, so that the flange portion 10d of the inner plug 10 abuts against the upper wall portion 9b of the outer cover 9 located around the opening 9c, thereby achieving a state in which the inner plug 10 and the outer cover 9 are engaged.

[0131] From that state onwards, as Figure 10As shown, the inner plug 10 is rotated relative to the outer cover 9 toward one side of the arc located off-center from the central axis AX of the outer cover 9, where the pair of cut-out recesses 16a and 16b are cut. This results in one guide wall 16c engaging with one guide groove 17c and the other guide wall 16d engaging with the other guide groove 17d, thereby causing the inner plug 10 to rotate relative to the outer cover 9 from the removed position to the installed position.

[0132] Furthermore, when the inner plug 10 is rotated relative to the outer cover 9 to... Figures 2-5 In the installation position shown, a pair of first locking portions 19 and a pair of second locking portions 20 are locked together. Furthermore, by abutting one circumferential end of a pair of ribs 17a and 17b with the stop portions 16e and 16f, rotation of the inner plug 10 relative to the outer cover 9 can be prevented. Thus, the inner plug 10 can be installed on the outer cover 9.

[0133] In the disassembly and assembly mechanism 11A, the side of the inner plug 10 relative to the outer cover 9 (installation direction) is aligned with the direction in which the cover body 8 is mounted relative to the container body 2 (closing direction). Therefore, when the outer cover 9 is held and rotated about its axis toward the cover body 8 (cover unit 1A), one circumferential end of a pair of ribs 17a and 17b abuts against the stop portions 16e and 16f, thereby preventing the inner plug 10 from rotating relative to the outer cover 9, and thus the outer cover 9 and the inner plug 10 rotate as a unit. In this case, by rotating the inner plug 10, the cover body 8 can be mounted relative to the container body 2.

[0134] In the guide engagement portion 18, from this state, the inner plug 10 is rotated relative to the outer cover 9 toward one side (installation direction) of the arc located off-center from the central axis AX of the outer cover 9, where a pair of cut recesses 16a and 16b are cut. This results in one guide wall 16c engaging with one guide groove 17c, and the other guide wall 16d engaging with the other guide groove 17d. At this time, the direction in which the inner plug 10 rotates relative to the outer cover 9 about the axis is consistent with the direction in which the cover body 8 is mounted relative to the container body 2 (closing direction).

[0135] Furthermore, in the disassembly and assembly mechanism 11A, the cap body 8 (cap unit 1A) is mounted relative to the container body 2 by screwing the external thread 14 of the inner plug 10 into the internal thread 6 of the container body 2, thereby pressing the upper wall 9b of the outer cap 9 from the upper surface side with the flange 10d of the inner plug 10. As a result, the vertical movement of the outer cap 9 is restricted, and the container body 2 can be reliably sealed.

[0136] On the other hand, in the disassembly and assembly mechanism 11A, by performing an action opposite to the above-described action, that is, by rotating the inner plug 10 relative to the outer cover 9 in a direction opposite to the above-described direction, such as... Figure 10As shown, the locking state of the first locking part 19 relative to the second locking part 20 is released, so that the inner plug 10 rotates relative to the outer cover 9 from the installed position to the removed position.

[0137] Furthermore, when the inner plug 10 is rotated relative to the outer cover 9 to... Figures 6-9 When the inner plug 10 is in the removed position as shown, the other circumferential ends of the pair of ribs 17a and 17b abut against the stop portions 16g and 16h, thereby preventing the inner plug 10 from rotating relative to the outer cover 9.

[0138] At this time, since the notch recess 16a of one side matches the rib wall 17a of the other side, and the notch recess 16b of the other side matches the rib wall 17b of the other side, the inner plug 10 can be pulled upward from the opening 9c of the outer cover 9. Thus, the inner plug 10 can be removed from the outer cover 9.

[0139] Here, the ability to remove the inner plug 10 from the outer cover 9 is not limited to the state where the cover body 8 is removed from the container body 2. That is, with the cover body 8 installed on the container body 2, the inner plug 10 cannot be pulled upwards, nor can the outer cover 9 be pulled downwards. Therefore, with the cover body 8 installed on the container body 2, the inner plug 10 will not be accidentally removed from the outer cover 9.

[0140] Furthermore, when removing the cover body 8 (cover unit 1A) from the container body 2, only the rotation direction is reversed; everything else is the same as during installation. That is, if the outer cover 9 of the cover body 8 is held and rotated relative to the container body 2 in the opposite direction to the installation direction, one circumferential end of a pair of ribs 17a and 17b abuts against the stop portions 16e and 16f, thereby causing the inner plug 10 to rotate integrally with respect to the outer cover 9. Thus, the cover body 8 can be removed from the container body 2.

[0141] In the disassembly / removal mechanism 11A, at the installation position of the cover body 8 (cover unit 1A), the central axis AX of the outer cover 9 and the central axis BX of the inner plug 10 are aligned. They are also aligned with the central axis of the container body 2. In contrast, the rotation axis of the inner plug 10 during loading and unloading relative to the outer cover 9 is an arc-shaped axis that cuts through a pair of recessed cuts 16a, 16b, and is eccentric to the central axis AX of the outer cover 9 and the central axis BX of the inner plug 10 at the installation position. That is, the rotation axis of the cover body 8 (cover unit 1A) when it is installed on the container body 2 is eccentric to the rotation axis of the inner plug 10 during loading and unloading relative to the outer cover 9.

[0142] Here, the rotational action of screwing the external thread 14 of the inner plug 10 with the internal thread 6 of the container body 2 when attaching or detaching the cover body 8 (cover unit 1A) to the container body 2 will be described. When the outer cover 9 of the cover body 8 is held and rotated relative to the container body 2, the cover body 8 is mounted on the container body 2 by rotating around the central axis AX of the outer cover 9 at the mounting position and the central axis BX of the inner plug 10. In this case, the rotation axis of the inner plug 10 during attachment or detachment relative to the outer cover 9 is eccentric to the rotation axis during installation relative to the container body 2.

[0143] Typically, when three or more components are attached or detached separately by screwing them together, if the rotation axes are the same, there is a concern that so-called co-rotation may occur, where other components are attached or detached simultaneously even if only one component is intended to be attached or detached. In contrast, in this embodiment, since the two rotation axes are eccentric, it is possible to prevent co-rotation such as the outer cover 9 being accidentally attached or detached relative to the inner plug 10 during the attachment or detachment of the cover body 8 to the container body 2.

[0144] In the cover unit 1A of this embodiment, by having a structure in which the inner plug 10 is installed relative to the outer cover 9 in a way that allows for easy installation and removal, the outer cover 9 and the inner plug 10 can be cleaned separately, thereby maintaining hygiene between the outer cover 9 and the inner plug 10.

[0145] Therefore, in a lidded container 100A equipped with such a lid unit 1A, the ease of use can be further improved.

[0146] (Second Implementation)

[0147] Next, as a second embodiment of the present invention, a method having, for example... Figures 19-42 The lidded container 100B of the shown lid unit 1B will be described.

[0148] in addition, Figure 19 This is a perspective view showing the appearance of a lidded container 100B equipped with a lid unit 1B. Figure 20 This is a perspective view showing the state in which the inner plug 10 is positioned relative to the outer cover 9 of the cover unit 1B. Figure 21 This is a sectional perspective view showing the inner plug 10 in its installation position relative to the outer cover 9 of the cover unit 1B. Figure 22 This is a bottom view showing the state in which the inner plug 10 is positioned relative to the outer cover 9 of the cover unit 1B. Figure 23 Figure 20 is a horizontal sectional view showing the state in which the inner plug 10 is in the installed position relative to the outer cover 9 of the cover unit 1B. Figure 24 is a perspective view of the main part of the guide engagement portion 24 viewed from below, with the inner plug 10 in the installed position relative to the outer cover 9 of the cover unit 1B. Figure 25This is a perspective view of the main part of the sliding locking part 27 from below, with the inner plug 10 in the installed position relative to the outer cover 9 of the cover unit 1B. Figure 26 This is a perspective view showing the state in which the inner plug 10 is in the removed position relative to the outer cover 9 of the cover unit 1B. Figure 27 This is a cross-sectional perspective view showing the inner plug 10 in the removed position relative to the outer cover 9 of the cover unit 1B. Figure 28 This is a bottom view showing the state in which the inner plug 10 is in the removed position relative to the outer cover 9 of the cover unit 1B. Figure 29 Figure 30 is a horizontal sectional view showing the state in which the inner plug 10 is in the removed position relative to the outer cover 9 of the cover unit 1B. Figure 30 is a main perspective view of the state of the guide engagement portion 24 viewed from below with the inner plug 10 in the removed position relative to the outer cover 9 of the cover unit 1B. Figure 31 This is a perspective view of the main part of the sliding locking part 27 from below, with the inner plug 10 in the removed position relative to the outer cover 9 of the cover unit 1B. Figure 32 This is a perspective view showing the state in which the inner plug 10 is located in the middle position relative to the outer cover 9 of the cover unit 1B. Figure 33 This is a sectional perspective view showing the state in which the inner plug 10 is partially cut open relative to the outer cover 9 of the cover unit 1B and is in the middle position. Figure 34 This is a bottom view showing the state in which the inner plug 10 is in the middle position relative to the outer cover 9 of the cover unit 1B. Figure 35 Figure 36 is a horizontal sectional view showing the state in which the inner plug 10 is in the middle position relative to the outer cover 9 of the cover unit 1B. Figure 37 is a perspective view of the main part of the guide engagement portion 24 from below, showing the state in which the inner plug 10 is in the middle position relative to the outer cover 9 of the cover unit 1B. Figure 37 This is a perspective view of the main part of the sliding locking part 27 from below, with the inner plug 10 in the middle position relative to the outer cover 9 of the cover unit 1B. Figure 38 This is a perspective view of the outer cover 9 of the cover unit 1B as seen from above. Figure 39 This is a perspective view of one side of the outer cover 9 of the cover unit 1B, viewed from below. Figure 40 This is a perspective view of the other side of the outer cover 9 of the cover unit 1B, viewed from below. Figure 41 This is a perspective view of one side of the inner plug 10 of the cover unit 1B as seen from below. Figure 42 This is a perspective view of the other side of the inner plug 10 of the cover unit 1B, viewed from below. Furthermore, in the following description, the same parts as those in the cover unit 1A described above are omitted, and the same reference numerals are used in the accompanying drawings.

[0149] like Figure 19As shown, the lid unit 1B of this embodiment is installed on the container body 2 in a detachable manner to form a lidded container 100B.

[0150] Specifically, such as Figures 19-42 As shown, the cover unit 1B has a structure that is basically the same as the cover unit 1A, except that it replaces the above-mentioned disassembly and assembly mechanism 11A and has a disassembly and assembly mechanism 11B that allows the inner plug 10 to be installed and removed from the outer cover 9 in a way that is easy to install and remove.

[0151] The disassembly and assembly mechanism 11B has the following structure: after the inner plug 10 is rotated about an axis from the unloading position where it is eccentrically removed from the central axis AX of the outer cover 9 relative to the central axis BX of the inner plug 10, the inner plug 10 is slid to the installation position where the central axis AX of the outer cover 9 is aligned with the central axis BX of the inner plug 10, thereby installing the inner plug 10 onto the outer cover 9.

[0152] Specifically, such as Figures 20-42 As shown, the disassembly and assembly mechanism 11B includes: a guide engagement portion 24, which guides the inner plug 10 to rotate freely between the removed position and the installed position relative to the outer cover 9 by engaging the first engagement portion 22 provided on the outer cover 9 with the second engagement portion 23 provided on the inner plug 10; and a sliding locking portion 27, which, when the inner plug 10 is slid to the installed position, locks the locking portion of either the first locking portion 25 provided on the outer cover 9 or the second locking portion 26 provided on the inner plug 10 (the second locking portion 26 in this embodiment) with the locking portion of the other (the first locking portion 25 in this embodiment).

[0153] like Figures 38-40 As shown, the first engaging portion 22 has three cut-out recesses 22a, 22b, and 22c formed by cutting a portion of the upper wall portion 9b of the outer cover 9, and three guide walls 22d, 22e, and 22f protruding inward from each of the three cut-out recesses 22a, 22b, and 22c.

[0154] Three notched recesses 22a, 22b, and 22c are arranged around the opening 9c of the outer cover 9. Notched recess 22a is positioned offset circumferentially from the marking protrusion 28 protruding from the upper surface of the upper wall portion 9b. Notched recesses 22b and 22c are located on opposite sides of the notched recess 22a in the circumferential direction, and are positioned opposite each other across the opening 9c.

[0155] The marking protrusion 28 is located on the side opposite to the side eccentric to the opening 9c of the upper wall portion 9b. It is configured to be continuous with the peripheral wall portion 9a and to protrude upward at a height similar to the thickness of the flange portion 10d of the inner plug 10. In this embodiment, the marking protrusion 28 has a generally semi-circular shape when viewed from above, but it is not necessarily limited to such a shape, as long as it is a shape like a marking.

[0156] Three guide walls 22d, 22e, and 22f are part of the upper wall portion 9b located between each of the three cut recesses 22a, 22b, and 22c, and are arranged around the opening 9c of the outer cover 9. Specifically, guide wall 22d is located between cut recesses 22a and 22c, guide wall 22e is located between cut recesses 22a and 22b, and guide wall 22f is located between cut recesses 22b and 22c.

[0157] Furthermore, the three guide walls 22d, 22e, and 22f are formed by cutting a portion of the lower surface of the upper wall portion 9b circumferentially. A stop portion 22g is provided on one circumferential side (installation direction) of the guide wall 22f. A stop portion 22h is provided on the opposite side of the guide wall 22d, separated from the cut recess 22a.

[0158] On the other hand, such as Figure 41 as well as Figure 42 As shown, the second engaging portion 23 has three ribs 23a, 23b, 23c protruding outward from the peripheral wall portion 10b of the inner plug 10, and three guide grooves 23d, 23e, 23f formed between the flange portion 10d of the inner plug 10 and the three ribs 23a, 23b, 23c.

[0159] Three ribs 23a, 23b, and 23c are arranged around the peripheral wall portion 10b. Rib 23a is positioned corresponding to the marking recess 29 that cuts through a portion of the flange portion 10d. On the other hand, ribs 23b and 23c are located on both sides of the rib 23a in the circumferential direction and are positioned opposite each other across the peripheral wall portion 10b.

[0160] Thus, of the three guide grooves 23d, 23e, and 23f, guide groove 23d is formed between the flange portion 10d of the inner plug 10 and the rib wall 23a, guide groove 23e is formed between the flange portion 10d of the inner plug 10 and the rib wall 23b, and guide groove 23f is formed between the flange portion 10d of the inner plug 10 and the rib wall 23c.

[0161] The marking recess 29 matches the shape of the marking protrusion 28 described above, and has a shape that is cut in a roughly semi-circular shape when viewed from above.

[0162] In the guide card assembly 24, Figures 26-31In the removed position shown, with the notched recess 22a aligned with the rib wall 23a and the notched recesses 22b and 22c aligned with the rib walls 23b and 23c, the inner plug 10 is inserted from above into the opening 9c of the outer cover 9. This results in the inner plug 10 being engaged with the outer cover 9 while the flange portion 10d of the inner plug 10 abuts against the upper wall portion 9b of the outer cover 9 located around the opening 9c. Furthermore, in Figures 26-31 In the removed position shown, the central axis AX of the outer cover 9 is eccentric relative to the central axis BX of the inner plug 10.

[0163] Furthermore, in the guide engagement portion 24, to facilitate the alignment of the inner plug 10 with the outer cover 9, a protrusion 30 matching the shape of the marking protrusion 28 is provided in the cut recess 22a. Thus, by aligning the protrusion 30 on the outer cover 9 side with the marking recess 29 on the inner plug 10 side, the inner plug 10 can be easily inserted into the opening 9c of the outer cover 9 from above.

[0164] In the guide engagement portion 24, from this state, the inner plug 10 is rotated relative to the outer cover 9 toward one side about the axis, thereby engaging the guide wall 22d with the guide groove 23d, engaging the guide wall 22e with the guide groove 23e, and engaging the guide wall 22f with the guide groove 23f. At this time, the direction in which the inner plug 10 rotates relative to the outer cover 9 about the axis is consistent with the direction in which the cover body 8 is installed on the container body 2 (closing direction).

[0165] Thus, the first engaging part 22 and the second engaging part 23 are engaged with each other. In the guide engaging part 24, in this state, the inner plug 10 can be freely guided relative to the outer cover 9 between the removed position and the intermediate position.

[0166] Furthermore, in the guide card assembly 24, in Figures 32-37 In the intermediate position shown, the rib wall 23c abuts against the stop portion 22g, thereby preventing the inner plug 10 from rotating relative to the outer cover 9 to one side (installation direction) beyond the intermediate position, and preventing the inner plug 10 from sliding relative to the outer cover 9 to the other side (removal direction). On the other hand, in the guide engagement portion 24, in Figures 26-31 In the removed position shown, the rib wall 23a abuts against the stop portion 22h, thereby preventing the inner plug 10 from rotating relative to the outer cover 9 beyond the removed position to the other side (removal direction). Thus, when the inner plug 10 is rotated relative to the outer cover 9, the inner plug 10 can be reliably positioned relative to the outer cover 9 in the intermediate position and the removed position.

[0167] exist Figures 32-37 In the middle position shown, the central axis AX of the outer cover 9 is off-center relative to the central axis BX of the inner plug 10. Furthermore, in Figures 32-37In the middle position shown, the marking protrusion 28 on the outer cover 9 side and the marking recess 29 on the inner plug 10 side are facing each other.

[0168] like Figures 38-40 As shown, the first locking portion 25 has a pair of locking protrusions 25a and 25b. The pair of locking protrusions 25a and 25b are located on the guide walls 22e and 22f on both sides of the upper wall portion 9b in the circumferential direction, separated by the marked protrusion 28, and are configured to protrude inwards than the guide walls 22e and 22f.

[0169] On the other hand, such as Figure 41 as well as Figure 42 As shown, the second locking portion 26 has a pair of locking recesses 26a and 26b. The pair of locking recesses 26a and 26b are located inside the guide grooves 23e and 23f respectively, corresponding to the pair of locking protrusions 25a and 25b, and are provided by recessing a portion of the peripheral wall portion 10b inward.

[0170] In addition, such as Figures 38-42 As shown, the sliding stop portion 27 has a sliding groove 31a provided on the guide wall 22d and a pair of sliding protrusions 31b, a rib wall 23a, and a sliding rib 31c provided on the rib wall 23a.

[0171] The sliding groove 31a is a longitudinal groove that radially cuts through the guide wall 22d at a position corresponding to the marking protrusion 28. A pair of sliding protrusions 31b protrude from the lower surface of the guide wall 22d corresponding to the rib wall 23a, and are arranged radially downward from both sides across the sliding groove 31a. The sliding rib 31c is a longitudinal rib that connects the flange portion 10d and the rib wall 23a corresponding to the sliding groove 31a, and is arranged radially from a position corresponding to the marking recess 29.

[0172] In the sliding stop 27, from Figures 32-37 In the middle position shown, the inner plug 10 is pressed into the outer cover 9, thereby sliding to the installation position, where the sliding rib 31c is engaged with the sliding groove 31a, and the rib wall 23a is engaged with a pair of sliding protrusions 31b.

[0173] In the sliding stop part 27, Figures 20-25 The installation position shown is such that a pair of locking protrusions 25a, 25b and a pair of locking recesses 26a, 26b are locked together. Thus, the first locking portion 25 can be locked relative to the second locking portion 26.

[0174] Furthermore, in the sliding locking part 27, a clicking sensation can be provided when either the locking part of the first locking part 25 or the second locking part 26 (the second locking part 26 in this embodiment) locks with either the locking part of the other (the first locking part 25 in this embodiment).

[0175] exist Figures 20-25 In the installation position shown, the central axis AX of the outer cover 9 coincides with the central axis BX of the inner plug 10. Furthermore, the peripheral wall portion 9a of the outer cover 9 and the flange portion 10d of the inner plug are almost flush with each other as the outer peripheral surface of the cover body 8. Additionally, the installation position can be visually confirmed by the alignment of the marking protrusion 28 and the marking recess 29.

[0176] In the disassembly and assembly mechanism 11B having the structure described above, in Figures 26-31 In the removal position shown, while aligning the cut recess 22a with the rib wall 23a and aligning the cut recesses 22b and 22c with the rib walls 23b and 23c, insert the inner plug 10 from the top into the opening 9c of the outer cover 9, so that the flange portion 10d of the inner plug 10 abuts against the upper wall portion 9b of the outer cover 9 located around the opening 9c, thereby achieving a state in which the inner plug 10 and the outer cover 9 are engaged.

[0177] From this state, the inner plug 10 is rotated relative to the outer cover 9 toward one side around the axis, thereby engaging the guide wall 22d with the guide groove 23d, engaging the guide wall 22e with the guide groove 23e, and engaging the guide wall 22f with the guide groove 23f, thereby rotating the inner plug 10 relative to the outer cover 9 from the removed position to the middle position.

[0178] Furthermore, when the inner plug 10 is rotated relative to the outer cover 9 from the removed position to... Figures 32-37 When in the middle position as shown, the rib wall 23c abuts against the stop portion 22g, thereby preventing the inner plug 10 from rotating relative to the outer cover 9 to the side (installation direction) beyond the middle position.

[0179] From this state, while locking the sliding rib 31c with the sliding groove 31a and locking the rib wall 23a with a pair of sliding protrusions 31b, the inner plug 10 is pressed into the outer cover 9, thereby sliding the inner plug 10 to the installation position. As a result, the inner plug 10 cannot rotate relative to the outer cover 9 from the installation position, but can only move in the sliding direction when it is removed (from the installation position to the middle position).

[0180] At this time, a pair of locking protrusions 25a and 25b and a pair of locking recesses 26a and 26b are engaged, thus achieving a state where the first locking part 25 and the second locking part 26 are engaged. Therefore, the inner plug 10 can be installed relative to the outer cover 9.

[0181] Furthermore, in the disassembly and assembly mechanism 11B, the cover body 8 (cover unit 1B) is installed relative to the container body 2 by screwing the external thread portion 14 of the inner plug 10 into the internal thread portion 6 of the container body 2, thereby pressing the upper wall portion 9b of the outer cover 9 from the upper surface side with the flange portion 10d of the inner plug 10. As a result, the vertical movement of the outer cover 9 is restricted, and the container body 2 can be reliably sealed.

[0182] Furthermore, when removing the cover body 8 (cover unit 1B) from the container body 2, only the rotation direction is reversed; everything else is the same as during installation. That is, if the outer cover 9 of the cover body 8 is held and rotated relative to the container body 2 in the opposite direction to the installation direction, the rib wall 23b abuts against the stop portion 22h, and the rib wall 23a abuts against the sliding protrusion 31b, thereby allowing the inner plug 10 to rotate integrally with respect to the outer cover 9. Thus, the cover body 8 can be removed from the container body 2.

[0183] On the other hand, in the disassembly and assembly mechanism 11B, by performing the opposite action to the above-described action, that is, by sliding the inner plug 10 relative to the outer cover 9 in the opposite direction to the above-described direction, the locking state of the sliding groove 31a and the sliding rib 31c is released, and the locking state of the pair of sliding protrusions 31b and the rib wall 23a is released. Similarly, the locking state of the first locking part 25 relative to the second locking part 26 is released, allowing the inner plug 10 to slide relative to the outer cover 9 from the installation position to the middle position.

[0184] At this point, a clicking sensation is applied, similar to that during installation. This prevents accidental movement in the sliding direction. Furthermore, the clicking sensation allows the click sensation to detect when the object has slid from its installed position towards the center.

[0185] From this position, the inner plug 10 is rotated relative to the outer cover 9 to the removed position. Furthermore, when the inner plug 10 is rotated relative to the outer cover 9 to the removed position, the rib wall 23a abuts against the stop portion 22h, thereby preventing the inner plug 10 from rotating relative to the outer cover 9 to the other side (removal direction) beyond the removed position.

[0186] At this time, the notch recess 22a aligns with the rib wall 23a, and the notch recesses 22b and 22c align with the rib walls 23b and 23c, thus allowing the inner plug 10 to be pulled upwards from the opening 9c of the outer cover 9. Therefore, the inner plug 10 can be removed from the outer cover 9.

[0187] Here, the ability to remove the inner plug 10 from the outer cover 9 is not limited to the state where the cover body 8 is removed from the container body 2. That is, with the cover body 8 installed on the container body 2, the inner plug 10 cannot be pulled upwards, nor can the outer cover 9 be pulled downwards. Therefore, with the cover body 8 installed on the container body 2, the inner plug 10 will not be accidentally removed from the outer cover 9.

[0188] Compared with the cover unit 1A of the first embodiment described above, the cover unit 1B of this embodiment has an additional sliding locking part 27. Therefore, it is necessary to slide the inner plug 10 towards the intermediate position before it moves relative to the outer cover 9 from the installed position to the removed position. That is, the action of sliding the inner plug 10 from the installed position to the intermediate position is equivalent to a substantial locking release action, and as long as the sliding action is not performed, the outer cover 9 will not rotate relative to the inner plug 10 from the installed position.

[0189] Furthermore, when the cover body 8, with the outer cover 9 and inner plug 10 in the installation position, is attached to or detached from the container body 2, it passes through an intermediate position via the sliding locking part 27. Therefore, the rotation axis of the outer cover 9 relative to the inner plug 10 is already eccentric before rotation compared to the rotation axis of the cover body 8 when it is attached to or detached from the container body 2. Thus, the so-called co-rotation caused by the rotation of the cover body 8 when it is attached to or detached from the container body 2 can be suppressed more reliably.

[0190] In the cover unit 1B of this embodiment, the inner plug 10 is installed in a way that allows the outer cover 9 to be easily attached and detached, so that the outer cover 9 and the inner plug 10 can be cleaned separately, thereby keeping the outer cover 9 and the inner plug 10 hygienic.

[0191] Therefore, in the lidded container 100B equipped with such a lid unit 1B, the ease of use can be further improved.

[0192] Furthermore, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0193] For example, the cap units 1A and 1B described above can be configured such that the inner plug 10 is installed on the container body 2 by screwing it in while it is inserted into the inner side of the upper opening 2a of the container body 2, but this configuration is not necessarily limited to such a configuration. For example, the cap units 1A and 1B described above can also be configured such that the outer cap 9 is installed on the container body 2 by screwing it in while it covers the upper opening 2a of the container body 2 from the outside.

[0194] In this structure, instead of the aforementioned internal thread portion 6 and external thread portion 14, it is sufficient to have a structure in which the outer cover 9 (cover body 8) can be installed on the container body 2 in a way that allows it to be easily attached and detached by screwing together the external thread portion provided on the outer peripheral surface of the neck portion 2d and the internal thread portion provided on the inner peripheral surface of the peripheral wall portion 9a that constitutes the outer cover 9.

[0195] Furthermore, the aforementioned lidded containers 100A and 100B can be configured to directly open and close the upper opening 2a of the container body 2, but are not necessarily limited to such a configuration. For example, the lid units 1A and 1B can also be mounted on the shoulder member of the container body 2 in a manner that allows for easy attachment and detachment.

[0196] Alternatively, the structure can be configured to allow the lid to be freely opened and closed relative to the lid body mounted on the container body 2. In this case, the lid can be mounted to the lid body by screwing it on, or the lid can be mounted to the lid body in a rotatable manner via a hinge.

[0197] Furthermore, in the above embodiments, the present invention was exemplified in the case of a beverage container having a heat preservation function (or cold preservation function) through a container body 2 having the above-described vacuum insulation structure. However, the present invention can be widely applied to lidded containers having a container body and a lid that is detachably mounted on the container body.

Claims

1. A lid unit, which is detachably mounted to a container body with an upper opening, characterized in that it comprises: An outer cover that surrounds the upper part of the container body; An inner plug, which is inserted into the inside of the container body from the upper opening of the container body; and A disassembly and assembly mechanism that allows the inner plug to be installed and removed freely relative to the outer cover. The disassembly and assembly mechanism has the following structure: the inner plug is installed on the outer cover by rotating the inner plug about an axis from a dismounting position where the central axis of the outer cover is eccentric to the central axis of the inner plug, to an installation position where the central axis of the outer cover is aligned with the central axis of the inner plug.

2. A lid unit, which is detachably mounted to a container body with an upper opening, the lid unit being characterized by comprising: An outer cover that surrounds the upper part of the container body; An inner plug, which is inserted into the inside of the container body from the upper opening of the container body; and A disassembly and assembly mechanism that allows the inner plug to be installed and removed freely relative to the outer cover. The disassembly and assembly mechanism has the following structure: after rotating the inner plug about an axis from the unloading position where it is eccentric to the center axis of the outer cover relative to the center axis of the inner plug, the inner plug is slid to the installation position, thereby installing the inner plug onto the outer cover.

3. The cover unit according to claim 1, characterized in that, In the removed position, the inner plug is inserted from the top into the opening provided on the upper part of the outer cover, so that the flange portion of the inner plug protruding from the outer periphery of the upper end in the expansion direction abuts against the periphery of the opening of the outer cover, thereby making the inner plug locked into the outer cover.

4. The cover unit according to claim 2, characterized in that, In the removed position, the inner plug is inserted from the top into the opening provided on the upper part of the outer cover, so that the flange portion of the inner plug protruding from the outer periphery of the upper end in the expansion direction abuts against the periphery of the opening of the outer cover, thereby making the inner plug locked into the outer cover.

5. The cover unit according to claim 3, characterized in that, The disassembly / assembly mechanism has the following features: A guide engagement portion, wherein the guide engagement portion, by engaging a first engagement portion disposed on the outer cover and a second engagement portion disposed on the inner plug, guides the inner plug relative to the outer cover in a rotatable manner between the removed position and the installed position; and The rotating locking part, when the inner plug is rotated to the installation position, causes either the locking part of the first locking part provided on the outer cover and the locking part of the second locking part provided on the inner plug to lock with the locking part of the other.

6. The cover unit according to claim 4, characterized in that, The disassembly / assembly mechanism has the following features: The guide engagement portion guides the inner plug relative to the outer cover in a rotatable manner between the removed position and the installed position by engaging a first engagement portion provided on the outer cover and a second engagement portion provided on the inner plug. as well as The sliding locking part, when the inner plug is slid to the installation position, causes either the locking part of the first locking part provided on the outer cover and the locking part of the second locking part provided on the inner plug to lock with the locking part of the other.

7. The cover unit according to claim 5 or 6, characterized in that, When the locking part of one side locks into the locking part of the other side, a clicking sensation is provided.

8. The cover unit according to any one of claims 1 to 6, characterized in that, The inner plug or the outer cover is screwed onto the container body.

9. The cover unit according to any one of claims 1 to 6, characterized in that, It is equipped with a waterproof sealing component, which is integrally installed with the outer periphery of the lower end side of the inner plug to seal the container body and the inner plug.

10. A container with a lid, characterized in that have: The cover unit according to any one of claims 1 to 9; and The container body is equipped with the aforementioned cover unit.

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