Cover

Abstract

A cap is provided with an inner cap (11) and an outer cap (12), the inner cap (11) is formed in a topped cylindrical shape having an inner peripheral wall portion (21) and an inner ceiling wall portion (22), the outer cap (12) is formed in a topped cylindrical shape having an outer peripheral wall portion (23) and an outer ceiling wall portion (24), the outer peripheral wall portion (23) is provided with an inner cylinder (25) and an outer cylinder (26), and the lower end opening edge of the inner cylinder (25) is provided with a lower end opening edge of the outer cylinder (26). A plurality of elastic tabs (27) are disposed at intervals in the circumferential direction, and the plurality of elastic tabs (27) include first elastic tabs (27A) having support protrusions (28) formed at the lower ends thereof.

Description

Technical Field

[0001] The present invention relates to a lid. This application claims priority based on Japanese Patent Application No. 2023-006556 filed in Japan on January 19, 2023, and incorporates its content herein by reference. Background Art

[0002] Conventionally, a lid as shown in the following Patent Document 1, for example, has been known.

[0003] Prior Art Documents Patent Documents Patent Document 1: Japanese Utility Model Publication No. 63-42538 Summary of the Invention

[0004] Technical Problem There is room for improvement in making the lid easily have new functions such as, for example, decorativeness and / or gripability.

[0005] The present invention provides a lid capable of easily giving the lid new functions.

[0006] Technical Solution A first technical solution of the present invention is a lid including: an inner lid installed at the mouth of a container body for accommodating contents; and an outer lid installed on the inner lid in a state where relative movement is restricted. The inner lid is formed in a toped cylindrical shape having an inner peripheral wall portion and an inner top wall portion, and the outer lid is formed in a toped cylindrical shape having an outer peripheral wall portion and an outer top wall portion. The outer peripheral wall portion of the outer lid includes: an inner cylinder externally fitted to the inner peripheral wall portion; and an outer cylinder surrounding the inner cylinder from the outer side in the radial direction. At the lower end opening edge of the inner cylinder, a plurality of elastic tabs are provided at intervals in the circumferential direction. The plurality of elastic tabs project downward and are formed to be elastically deformable in the radial direction. The lower end portions of the plurality of elastic tabs are located above the lower end opening edge of the outer cylinder and below the lower end opening edge of the inner peripheral wall portion. The plurality of elastic tabs include first elastic tabs having support protrusions formed at the lower end portions. The support protrusions project inward in the radial direction and support the lower end opening edge of the inner peripheral wall portion.

[0007] In this case, elastic tabs are provided on the inner cylinder of the outer peripheral wall portion of the outer lid, and support protrusions are formed on the elastic tabs. The support protrusions support the lower end opening edge of the inner peripheral wall portion of the inner lid. Thus, when the outer lid is installed on the inner lid, when the outer lid is covered on the inner lid and pressed down, the support protrusions slide on the outer peripheral surface of the inner peripheral wall portion in a state where the elastic tabs are elastically deformed outward in the radial direction. And when the support protrusions reach the lower end opening edge of the inner peripheral wall portion, the elastic tabs are restored and deformed inward in the radial direction, and the support protrusions support the lower end opening edge of the inner peripheral wall portion.

[0008] Therefore, for example, an outer lid having functions such as decorativeness and / or gripability can be easily attached to an inner lid, and the lid can easily have new functions.

[0009] In addition, the lower end portion of the elastic tab is located above the lower end opening edge of the outer cylinder. Thus, the entire area of the elastic tab is covered by the outer cylinder from the outer side in the radial direction, and the appearance of the lid can be prevented from deteriorating.

[0010] A second aspect of the present invention is the lid according to the first aspect, wherein a first restricting portion is formed on the inner peripheral surface of the inner cylinder, a second restricting portion is formed on the outer peripheral surface of the inner peripheral wall portion, and the first restricting portion and the second restricting portion are configured to restrict relative rotation of the outer lid and the inner lid by engaging with each other. The plurality of elastic tabs are four or more even-numbered elastic tabs respectively provided at positions where one elastic tab and another elastic tab are opposed to each other in the radial direction. Two or more even-numbered elastic tabs among the four or more even-numbered elastic tabs, which are respectively provided at positions where one elastic tab and another elastic tab are opposed to each other in the radial direction, form the first elastic tabs. The first restricting portion is provided at a position on the inner peripheral surface of the inner cylinder that is circumferentially separated from the first elastic tabs.

[0011] In this case, the first restricting portion is provided at a position on the inner peripheral surface of the inner cylinder that is circumferentially separated from the elastic tab on which the support protrusion is formed. Thus, when the outer lid is attached to the inner lid, it is possible to prevent the first restricting portion from being deformed due to elastic deformation of the elastic tab accompanying the sliding of the support protrusion on the outer peripheral surface of the inner peripheral wall portion, and the first restricting portion and the second restricting portion can be reliably engaged.

[0012] In addition, the support protrusions are respectively formed on the elastic tabs that are opposed to each other in the radial direction. Thus, the outer lid can be stably attached to the inner lid. Technical effects According to the present invention, the lid can easily have new functions. Description of the drawings

[0013] Figure 1 is a longitudinal sectional view of a lid according to an embodiment of the present invention.

[0014] Figure 2 is a longitudinal sectional view obtained by observing the first restricting portion of the outer lid from the front. Figure 1 of the outer lid.

[0015] Figure 3 is a longitudinal sectional view obtained by observing the support protrusion of the outer lid from the front. Figure 1 of the outer lid.

[0016] Reference signs 1: Cap, 11: Inner cap, 12: Outer cap, 21: Inner peripheral wall portion, 21a: Lower end opening edge of the inner peripheral wall portion, 22: Inner top wall portion, 23: Outer peripheral wall portion, 24: Outer top wall portion, 25: Inner cylinder, 25b: Lower end opening edge of the inner cylinder, 26: Outer cylinder, 27: Elastic tab, 27A: First elastic tab, 27B: Second elastic tab, 28: Support projection, 31: First restricting portion, 32: Second restricting portion, 100: Container body, 101: Mouth portion. Detailed implementation manner

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0018] As Figure 1 shown, the cap 1 of the present embodiment includes: an inner cap 11 which is installed on the mouth portion 101 of the container body 100 for accommodating the content; and an outer cap 12 which is installed on the inner cap 11 in a state where relative movement is restricted.

[0019] The inner cap 11 is formed into a topped cylindrical shape having an inner peripheral wall portion 21 and an inner top wall portion 22, and the outer cap 12 is formed into a topped cylindrical shape having an outer peripheral wall portion 23 and an outer top wall portion 24. The inner cap 11 and the outer cap 12 are arranged coaxially with a common axis.

[0020] Hereinafter, the common axis will be referred to as the cap axis O, the side of the outer top wall portion 24 along the cap axis O direction will be referred to as the upper side, the opposite side will be referred to as the lower side, the direction along the cap axis O will be referred to as the up-down direction, in addition, the direction intersecting the cap axis O when viewed from the up-down direction will be referred to as the radial direction, and the direction surrounding the cap axis O when viewed from the up-down direction will be referred to as the circumferential direction.

[0021] The container body 100 includes an inner container 102, an outer container 103, and a shoulder cover 104.

[0022] The content is accommodated in the inner container 102. The inner container 102 is formed into a bottomed cylindrical shape and is configured such that the mouth portion 101, the shoulder portion 105, and the main body portion 106 are continuously provided in this order from above downward. A middle plug 101a is fitted in the mouth portion 101, and the middle plug 101a is a topped cylindrical shape having an annular top wall.

[0023] The outer container 103 is formed into a bottomed cylindrical shape and surrounds the main body portion 106 of the inner container 102 from the outside in the radial direction. The mouth portion 101 and the shoulder portion 105 in the inner container 102 protrude upward from the upper end opening of the outer container 103.

[0024] The shoulder cover 104 is formed into a topped cylindrical shape having an annular top wall, is screwed to the upper end portion of the outer container 103, and covers the shoulder portion 105 of the inner container 102 from above the shoulder portion 105. The mouth portion 101 protrudes upward from within the top wall of the shoulder cover 104.

[0025] It should be noted that the container body 100 may not have the middle plug 101a, the outer container 103, and the shoulder cover 104.

[0026] On the inner peripheral surface of the inner peripheral wall portion 21 of the inner lid 11, an inner thread portion that engages with the outer thread portion formed on the outer peripheral surface of the mouth portion 101 is formed. A ridge portion 21b is formed at the lower end portion of the inner peripheral wall portion 21 of the inner lid 11. The ridge portion 21b protrudes outward in the radial direction and continuously extends over the entire circumference in the circumferential direction.

[0027] The outer peripheral wall portion 23 of the outer lid 12 includes: an inner cylinder 25 that is externally fitted to the inner peripheral wall portion 21 of the inner lid 11; and an outer cylinder 26 that surrounds the inner cylinder 25 from the outside in the radial direction.

[0028] The outer diameter of the outer cylinder 26 is equal to the outer diameters of the outer container 103 and the shoulder cover 104. The lower end opening edge of the outer cylinder 26 abuts or is close to the upper surface of the top wall of the shoulder cover 104.

[0029] A stepped portion 25a is formed on the inner peripheral surface of the upper end portion of the inner cylinder 25. The stepped portion 25a faces downward and abuts or is close to the outer peripheral edge portion of the upper surface of the inner top wall portion 22 of the inner lid 11. The upper surface of the inner top wall portion 22 is separated from the lower surface of the outer top wall portion 24 of the outer lid 12 downward.

[0030] At the lower end opening edge 25b of the inner cylinder 25, a plurality of elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are provided at intervals in the circumferential direction. The plurality of elastic tabs 27 protrude downward and are formed to be elastically deformable in the radial direction. The elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are formed in a plate shape with the outer-inner surface facing the radial direction. The elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are bent and extend in the circumferential direction. Four or more even-numbered elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are provided at positions opposed to other elastic tabs 27 in the radial direction. The lower end portion of the elastic tab 27 is located above the lower end opening edge of the outer cylinder 26 and below the lower end opening edge 21a of the inner peripheral wall portion 21.

[0031] At the lower end of the elastic tab 27 (first elastic tab 27A), a support protrusion 28 is formed. The support protrusion 28 protrudes inward in the radial direction and supports the lower end opening edge 21a of the inner peripheral wall portion 21. The support protrusions 28 are respectively formed on the elastic tabs 27 (first elastic tabs 27A) that are opposed to each other in the radial direction. The support protrusion 28 is formed in a strip shape extending in the circumferential direction. The support protrusion 28 continuously extends over the entire circumferential length of the elastic tab 27 (first elastic tab 27A). The lower portion of the support protrusion 28 extends inward in the radial direction as it goes from the lower side to the upper side. The support protrusion 28 has an upper end surface that protrudes inward in the radial direction and upward from the inner peripheral surface facing the radial inside of the elastic tab 27 (first elastic tab 27A). The upper end surface of the support protrusion 28 abuts or approaches the lower end opening edge 21a of the inner peripheral wall portion 21. The upper end surface of the support protrusion 28 and the step portion 25a of the inner peripheral surface of the inner cylinder 25 sandwich the inner lid 11 in the vertical direction, whereby the relative movement of the inner lid 11 and the outer lid 12 in the vertical direction is restricted. Therefore, it is possible to prevent the inner lid 11 from being removed from the outer lid 12, and the lid 1 obtained by combining the inner lid 11 and the outer lid 12 can be reused. It should be noted that the inner lid 11 can also be removed from the outer lid 12, and a new inner lid can be fitted into the outer lid 12. It should be noted that the plurality of elastic tabs 27 include the elastic tabs 27 (first elastic tabs 27A) having a support protrusion 28 formed at the lower end, which protrudes inward in the radial direction and supports the lower end opening edge 21a of the inner peripheral wall portion 21. Further, the plurality of elastic tabs 27 include elastic tabs 27 (second elastic tabs 27B) on which no support protrusion 28 is formed.

[0032] A first restricting portion 31 and a second restricting portion 32 are respectively formed on the inner peripheral surface of the inner cylinder 25 and the outer peripheral surface of the inner peripheral wall portion 21. The first restricting portion 31 and the second restricting portion 32 restrict the relative rotation of the outer lid 12 and the inner lid 11 by engaging with each other.

[0033] A plurality of the first restricting portions 31 and the second restricting portions 32 are respectively provided in the circumferential direction. The first restricting portion 31 and the second restricting portion 32 are formed in a protruding strip shape that protrudes in the radial direction and extends in the vertical direction. Either the first restricting portion 31 or the second restricting portion 32 is inserted between the other adjacent ones in the circumferential direction. The first restricting portion 31 is provided at a portion of the inner peripheral surface of the inner cylinder 25 that is lower than the step portion 25a. The first restricting portion 31 is located above the elastic tabs 27 (first elastic tabs 27A, second elastic tabs 27B).

[0034] The first restricting portion 31 and the supporting protrusion 28 are provided at circumferentially separated positions. The first restricting portion 31 is provided at a position on the inner circumferential surface of the inner cylinder 25 that is circumferentially separated from the elastic tab 27 (first elastic tab 27A) on which the supporting protrusion 28 is formed. On the inner circumferential surface of the inner cylinder 25, a plurality of first restricting portions 31 are provided in a plurality of circumferential directions at portions that are radially opposed to each other. Among the plurality of elastic tabs 27 (first elastic tab 27A, second elastic tab 27B), the circumferential dimension of the elastic tab 27 (first elastic tab 27A) on which the supporting protrusion 28 is formed is smaller than the circumferential dimension of the elastic tab 27 (second elastic tab 27B) at a position directly below the first restricting portion 31.

[0035] As described above, in the lid 1 according to the present embodiment, elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are provided on the outer peripheral wall portion 23 of the outer lid 12, and a supporting protrusion 28 is formed on the elastic tab 27 (first elastic tab 27A), and the supporting protrusion 28 supports the lower end opening edge 21a of the inner peripheral wall portion 21 of the inner lid 11. Thus, when the outer lid 12 is installed on the inner lid 11, when the outer lid 12 is pressed down on the inner lid 11 in a covering manner, the supporting protrusion 28 slides on the outer peripheral surface of the inner peripheral wall portion 21 in a state where the elastic tab 27 (first elastic tab 27A) is elastically deformed radially outward. And when the supporting protrusion 28 reaches the lower end opening edge 21a of the inner peripheral wall portion 21, the elastic tab 27 (first elastic tab 27A) is restored and deformed radially inward, and the supporting protrusion 28 supports the lower end opening edge 21a of the inner peripheral wall portion 21.

[0036] Therefore, for example, the outer lid 12 having functions such as decorativeness and / or gripability can be easily installed on the inner lid 11, and the lid 1 can easily have new functions.

[0037] In addition, the lower end portions of the elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are located above the lower end opening edge of the outer cylinder 26. Thus, the elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are covered from the radially outer side by the outer cylinder 26 throughout the entire region, thereby preventing the appearance of the lid 1 from deteriorating.

[0038] In addition, the first restricting portion 31 is provided at a position on the inner circumferential surface of the inner cylinder 25 that is circumferentially separated from the elastic tab 27 (first elastic tab 27A) on which the supporting protrusion 28 is formed. Thus, when the outer lid 12 is installed on the inner lid 11, it is possible to prevent the first restricting portion 31 from deforming due to the elastic deformation of the elastic tab 27 (first elastic tab 27A) as the supporting protrusion 28 slides on the outer peripheral surface of the inner peripheral wall portion 21, and the first restricting portion 31 and the second restricting portion 32 can be reliably engaged.

[0039] In addition, support protrusions 28 are respectively formed on the elastic tabs 27 that are opposed to each other in the radial direction. Thereby, the outer lid 12 can be stably mounted on the inner lid 11.

[0040] It should be noted that the technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

[0041] For example, the lid 1 obtained by combining the inner lid 11 and the outer lid 12 can be mounted on the mouth portion 101 of the container body 100, or the outer lid 12 can be mounted on the inner lid 11 that is mounted on the mouth portion 101 of the container body 100.

[0042] In addition, within the scope not departing from the gist of the present invention, the constituent elements in the above-described embodiments can be appropriately replaced with known constituent elements, and the above-described embodiments and modified examples can also be appropriately combined.

[0043] The technical solution of the present invention is described as follows, for example.

[0044] (1) A lid, comprising: An inner lid that is mounted on the mouth portion of a container body that houses a content; and An outer lid that is mounted on the inner lid in a state where relative movement is restricted, The inner lid is formed in a toped cylindrical shape having an inner peripheral wall portion and an inner top wall portion, The outer lid is formed in a toped cylindrical shape having an outer peripheral wall portion and an outer top wall portion, The outer peripheral wall portion includes: An inner cylinder that is externally fitted to the inner peripheral wall portion; and An outer cylinder that surrounds the inner cylinder from the outside in the radial direction, At the lower end opening edge of the inner cylinder, a plurality of elastic tabs are provided at intervals in the circumferential direction. The plurality of elastic tabs protrude downward and are formed to be elastically deformable in the radial direction, The lower end portions of the plurality of elastic tabs are located above the lower end opening edge of the outer cylinder and below the lower end opening edge of the inner peripheral wall portion, The plurality of elastic tabs include first elastic tabs having support protrusions formed at the lower end portions. The support protrusions protrude inward in the radial direction and support the lower end opening edge of the inner peripheral wall portion.

[0045] (2) The lid according to (1), A first restricting portion is formed on the inner peripheral surface of the inner cylinder, and a second restricting portion is formed on the outer peripheral surface of the inner peripheral wall portion. The first restricting portion and the second restricting portion are configured to restrict relative rotation of the outer lid and the inner lid by engaging with each other. The plurality of elastic tabs are four or more even-numbered elastic tabs respectively disposed at positions radially opposed to one elastic tab and another elastic tab. Two or more even-numbered elastic tabs among the four or more even-numbered elastic tabs, which are respectively disposed at positions radially opposed to one elastic tab and another elastic tab, form the first elastic tab. The first restricting portion is disposed at a position on the inner circumferential surface of the inner cylinder that is circumferentially separated from the first elastic tab.

[0046] Industrial availability According to the present invention, it is possible to easily endow the lid with a new function.

Claims

1. A lid, characterized in that, Comprising: An inner lid, which is installed at the mouth of a container body for containing contents; and An outer lid, which is installed on the inner lid in a state where relative movement is restricted, The inner lid is formed into a capped cylindrical shape having an inner peripheral wall portion and an inner top wall portion, The outer lid is formed into a capped cylindrical shape having an outer peripheral wall portion and an outer top wall portion, The outer peripheral wall portion comprises: An inner cylinder, which is externally fitted to the inner peripheral wall portion; and An outer cylinder, which surrounds the inner cylinder from the outer side in the radial direction, At the lower end opening edge of the inner cylinder, a plurality of elastic tabs are provided at intervals in the circumferential direction. The plurality of elastic tabs protrude downward and are formed to be elastically deformable in the radial direction, The lower end portions of the plurality of elastic tabs are located above the lower end opening edge of the outer cylinder and below the lower end opening edge of the inner peripheral wall portion, The plurality of elastic tabs include first elastic tabs having support protrusions formed at the lower end portions. The support protrusions protrude radially inward and support the lower end opening edge of the inner peripheral wall portion.

2. The lid according to claim 1, wherein A first restricting portion is formed on the inner peripheral surface of the inner cylinder, A second restricting portion is formed on the outer peripheral surface of the inner peripheral wall portion, The first restricting portion and the second restricting portion are configured to restrict relative rotation of the outer lid and the inner lid by engaging with each other, The plurality of elastic tabs are an even number of 4 or more elastic tabs respectively provided at positions where one elastic tab and another elastic tab are opposed to each other in the radial direction, Two or more even-numbered elastic tabs among the even number of 4 or more elastic tabs respectively provided at positions where one elastic tab and another elastic tab are opposed to each other in the radial direction form the first elastic tabs, The first restricting portion is provided at a position on the inner peripheral surface of the inner cylinder that is separated from the first elastic tabs in the circumferential direction.

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