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Abstract

The present invention provides a cover having an inner cover (11) and an outer cover (12). The inner cover (11) is formed as a topped cylindrical shape having an inner peripheral wall portion (21) and an inner top wall portion (22). The outer cover (12) is formed as a topped cylindrical shape having an outer peripheral wall portion (23) and an outer top wall portion (24). The outer peripheral wall portion (23) has an inner cylinder (25) and an outer cylinder (26). At the lower end opening edge of the inner cylinder (25), a plurality of elastic tabs (27) are arranged at intervals in the circumferential direction. The plurality of elastic tabs (27) includes a first elastic tab (27A) having a support protrusion (28) formed at its lower end.

Description

Technical Field

[0001] This invention relates to covers. This application claims priority based on Japanese Patent Application No. 2023-006556, filed on January 19, 2023, the contents of which are incorporated herein by reference. Background Technology

[0002] Previously, covers such as those shown in Patent Document 1 below were known.

[0003] Existing technical documents Patent documents Patent Document 1: Japanese Utility Model Application Publication No. 63-42538 Summary of the Invention

[0004] Technical issues There is room for improvement in making the lid easily have new functions such as decorative and / or gripping properties.

[0005] The present invention provides a lid that can easily have new functions.

[0006] Technical solution The first technical solution of the present invention is a cover comprising: an inner cover installed at the opening of a container body containing contents; and an outer cover installed on the inner cover in a state where relative movement is restricted. The inner cover is formed as a topped cylinder having an inner peripheral wall and an inner top wall, and the outer cover is formed as a topped cylinder having an outer peripheral wall and an outer top wall. The outer peripheral wall comprises: an inner cylinder embedded in the inner peripheral wall; and an outer cylinder surrounding the inner cylinder from the radially outer side. A plurality of elastic protrusions are provided at circumferential intervals at the lower opening edge of the inner cylinder. The plurality of elastic protrusions protrude downward and are configured to be elastically deformable in the radial direction. The lower end of each of the plurality of elastic protrusions is located above the lower opening edge of the outer cylinder and below the lower opening edge of the inner peripheral wall. The plurality of elastic protrusions includes a first elastic protrusion with a support protrusion formed at the lower end. The support protrusion protrudes radially inward and supports the lower opening edge of the inner peripheral wall.

[0007] In this configuration, an elastic tab is provided on the inner cylinder of the outer peripheral wall of the outer cover, and a support protrusion is formed on the elastic tab. This support protrusion supports the lower opening edge of the inner peripheral wall of the inner cover. Therefore, when the outer cover is installed on top of the inner cover, as the outer cover covers the inner cover and is pressed down, the support protrusion slides on the outer peripheral surface of the inner peripheral wall while the elastic tab is elastically deformed radially outward. Furthermore, when the support protrusion reaches the lower opening edge of the inner peripheral wall, the elastic tab returns to its original radially inward deformation, and the support protrusion supports the lower opening edge of the inner peripheral wall.

[0008] Therefore, for example, an outer cover with decorative and / or gripping functions can be easily installed on an inner cover, making it easy for the cover to have new functions.

[0009] In addition, the lower end of the elastic tab is located above the lower opening edge of the outer cylinder. Thus, the entire area of ​​the elastic tab is radially covered by the outer cylinder, preventing the cap's appearance from deteriorating.

[0010] The second technical solution of the present invention is that, in the cover of the first technical solution, a first limiting part is formed on the inner circumferential surface of the inner cylinder, and a second limiting part is formed on the outer circumferential surface of the inner circumferential wall. The first limiting part and the second limiting part are configured to restrict the relative rotation of the outer cover and the inner cover by engaging with each other. The plurality of elastic protrusions are four or more even-numbered elastic protrusions respectively disposed at positions where one elastic protrusion is radially opposed to another elastic protrusion. Two or more even-numbered elastic protrusions among the four or more even-numbered elastic protrusions respectively disposed at positions where one elastic protrusion is radially opposed to another elastic protrusion form the first elastic protrusion. The first limiting part is disposed on the inner circumferential surface of the inner cylinder at a position separated from the first elastic protrusion in the circumferential direction.

[0011] In this case, the first limiting part is located on the inner circumferential surface of the inner cylinder, at a position circumferentially separated from the elastic tab with the support protrusion. Therefore, when the outer cover is installed on the inner cover, deformation of the first limiting part due to the elastic deformation of the elastic tab, which accompanies the sliding of the support protrusion on the outer circumferential surface of the inner circumferential wall, can be prevented, and the first limiting part and the second limiting part can be reliably engaged.

[0012] Furthermore, support protrusions are formed on elastic tabs that are radially opposed to each other. This allows the outer cover to be stably mounted on the inner cover. Technical effect According to the present invention, the cover can be easily given new functions. Attached Figure Description

[0013] Figure 1 This is a longitudinal sectional view of the cover according to one embodiment of the present invention.

[0014] Figure 2 View from the front Figure 1 The longitudinal section view obtained from the first limiting part of the outer cover.

[0015] Figure 3 View from the front Figure 1 The longitudinal section view is obtained by considering the supporting protrusions of the outer cover.

[0016] Symbol Explanation 1: Lid, 11: Inner lid, 12: Outer lid, 21: Inner peripheral wall, 21a: Lower opening edge of the inner peripheral wall, 22: Inner top wall, 23: Outer peripheral wall, 24: Outer top wall, 25: Inner cylinder, 25b: Lower opening edge of the inner cylinder, 26: Outer cylinder, 27: Elastic tab, 27A: First elastic tab, 27B: Second elastic tab, 28: Supporting protrusion, 31: First limiting part, 32: Second limiting part, 100: Container body, 101: Mouth. Detailed Implementation

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

[0018] like Figure 1 As shown, the cover 1 of this embodiment includes: an inner cover 11, which is installed on the opening 101 of the container body 100 containing the contents; and an outer cover 12, which is installed on the inner cover 11 in a state where relative movement is restricted.

[0019] The inner cover 11 is formed as a topped cylindrical shape having an inner peripheral wall portion 21 and an inner top wall portion 22, and the outer cover 12 is formed as a topped cylindrical shape having an outer peripheral wall portion 23 and an outer top wall portion 24. The inner cover 11 and the outer cover 12 are fitted together in a manner coaxial with a common shaft.

[0020] Hereinafter, the common axis is referred to as cover axis O, the side of the outer top wall portion 24 along the direction of cover axis O is referred to as the upper side, the side opposite to it is referred to as the lower side, the direction along cover axis O is referred to as the up-down direction, and the direction that intersects cover axis O when viewed from the up-down direction is referred to as the radial direction, and the direction that surrounds cover axis O when viewed from the up-down direction is 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 inner container 102 contains contents. The inner container 102 is formed into a bottomed cylindrical shape and is constructed in which the opening 101, the shoulder 105, and the main body 106 are arranged continuously from top to bottom in this order. A central plug 101a is fitted into the opening 101. The central plug 101a is a topped cylindrical shape with an annular top wall.

[0023] The outer container 103 is formed as a bottomed cylindrical shape and surrounds the main body 106 of the inner container 102 from the radially outer side. The opening 101 and the shoulder 105 in the inner container 102 protrude upward from the upper opening of the outer container 103.

[0024] The shoulder cover 104 is formed as a topped cylinder with an annular top wall and is screwed onto the upper end of the outer container 103, covering the shoulder 105 of the inner container 102 from above the shoulder 105. The opening 101 protrudes upward from inside the top wall of the shoulder cover 104.

[0025] It should be noted that the container body 100 may be without the middle plug 101a, the outer container 103, and the shoulder cover 104.

[0026] An internal thread is formed on the inner peripheral surface of the inner peripheral wall portion 21 of the inner cover 11, which engages with the external thread portion formed on the outer peripheral surface of the opening portion 101. A protruding strip portion 21b is formed at the lower end of the inner peripheral wall portion 21 of the inner cover 11. The protruding strip portion 21b protrudes radially outward and extends continuously along the entire circumferential length.

[0027] The outer peripheral wall portion 23 of the outer cover 12 includes: an inner cylinder 25, which is externally fitted into the inner peripheral wall portion 21 of the inner cover 11; and an outer cylinder 26, which surrounds the inner cylinder 25 from the radially outer side.

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

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

[0030] At the lower opening edge 25b of the inner cylinder 25, a plurality of elastic tabs 27 (first elastic tabs 27A, second elastic tabs 27B) are provided at circumferential intervals. These elastic tabs 27 protrude downward and are configured to elastically deform in the radial direction. The elastic tabs 27 (first elastic tabs 27A, second elastic tabs 27B) are formed as plates with their outer and inner surfaces facing radially. The elastic tabs 27 (first elastic tabs 27A, second elastic tabs 27B) are bent and extend circumferentially. Four or more even-numbered elastic tabs 27 (first elastic tabs 27A, second elastic tabs 27B) are provided at positions radially opposite to other elastic tabs 27. The lower ends of the elastic tabs 27 are located above the lower opening edge of the outer cylinder 26 and below the lower opening edge 21a of the inner peripheral wall portion 21.

[0031] A support protrusion 28 is formed at the lower end of the elastic tab 27 (first elastic tab 27A), the support protrusion 28 protruding radially inward and supporting the lower end opening edge 21a of the inner peripheral wall portion 21. Support protrusions 28 are formed on the elastic tabs 27 (first elastic tabs 27A) that are radially opposed to each other. The support protrusions 28 are formed as strips extending circumferentially. The support protrusions 28 extend continuously along the entire circumferential length of the elastic tabs 27 (first elastic tabs 27A). The lower portion of the support protrusion 28 extends radially inward from below to above. The support protrusion 28 has an upper end face that protrudes radially inward and upward from the inner peripheral surface of the elastic tab 27 (first elastic tab 27A). The upper end face of the support protrusion 28 abuts against or approaches the lower end opening edge 21a of the inner peripheral wall portion 21. The upper end face of the support protrusion 28 and the stepped portion 25a of the inner circumferential surface of the inner cylinder 25 clamp the inner cover 11 in the vertical direction, thereby restricting the relative vertical movement of the inner cover 11 and the outer cover 12. Therefore, it is possible to prevent the inner cover 11 from being removed from the outer cover 12, and the cover 1 obtained by combining the inner cover 11 and the outer cover 12 can be reused repeatedly. It should be noted that the inner cover 11 can also be removed from the outer cover 12, and a new inner cover can be fitted into the outer cover 12. It should be noted that the plurality of elastic tabs 27 include an elastic tab 27 (first elastic tab 27A) with a support protrusion 28 formed at its lower end, which protrudes radially inward and supports the lower end opening edge 21a of the inner circumferential wall portion 21. Further, the plurality of elastic tabs 27 include an elastic tab 27 (second elastic tab 27B) without a support protrusion 28.

[0032] A first limiting part 31 and a second limiting part 32 are formed on the inner circumferential surface of the inner cylinder 25 and the outer circumferential surface of the inner circumferential wall 21, respectively. The first limiting part 31 and the second limiting part 32 restrict the relative rotation of the outer cover 12 and the inner cover 11 by engaging with each other.

[0033] Multiple first limiting portions 31 and second limiting portions 32 are provided circumferentially. The first limiting portions 31 and second limiting portions 32 are formed as protruding strips extending radially and vertically. Either the first limiting portion 31 or the second limiting portion 32 is inserted between any two adjacent portions in the circumferential direction. The first limiting portion 31 is located on the inner circumferential surface of the inner cylinder 25, at a position lower than the step portion 25a. The first limiting portion 31 is located above the elastic tabs 27 (first elastic tab 27A, second elastic tab 27B).

[0034] The first limiting portion 31 and the support protrusion 28 are disposed at a position that is circumferentially separated. The first limiting portion 31 is disposed in the inner circumferential surface of the inner cylinder 25 at a position that is circumferentially separated from the elastic tab 27 (first elastic tab 27A) on which the support protrusion 28 is formed. In the inner circumferential surface of the inner cylinder 25, a plurality of first limiting portions 31 are disposed in a plurality of radially opposed portions along the circumferential direction. 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 support protrusion 28 is formed is smaller than the circumferential dimension of the elastic tab 27 (second elastic tab 27B) located directly below the first limiting portion 31.

[0035] As described above, according to the cover 1 of this embodiment, an elastic tab 27 (first elastic tab 27A, second elastic tab 27B) is provided on the outer peripheral wall portion 23 of the outer cover 12. A support protrusion 28 is formed on the elastic tab 27 (first elastic tab 27A), and the support protrusion 28 supports the lower end opening edge 21a of the inner peripheral wall portion 21 of the inner cover 11. Therefore, when the outer cover 12 is installed on the inner cover 11, when the outer cover 12 is pressed down onto the inner cover 11 in a covering manner, the support protrusion 28 slides on the outer peripheral surface of the inner peripheral wall portion 21 while the elastic tab 27 (first elastic tab 27A) is elastically deformed radially outward. Furthermore, when the support protrusion 28 reaches the lower end opening edge 21a of the inner peripheral wall portion 21, the elastic tab 27 (first elastic tab 27A) returns to its original shape radially inward, and the support protrusion 28 supports the lower end opening edge 21a of the inner peripheral wall portion 21.

[0036] Therefore, for example, the outer cover 12, which has decorative and / or gripping functions, can be easily installed on the inner cover 11, making it easy for the cover 1 to have new functions.

[0037] Furthermore, the lower ends of the elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are located above the lower opening edge of the outer cylinder 26. Thus, the elastic tabs 27 (first elastic tab 27A, second elastic tab 27B) are covered radially from the outside by the outer cylinder 26 throughout the entire area, thereby preventing the appearance of the cover 1 from deteriorating.

[0038] Furthermore, the first limiting part 31 is located on the inner circumferential surface of the inner cylinder 25 at a position where it is separated from the elastic tab 27 (first elastic tab 27A) on which the support protrusion 28 is formed in the circumferential direction. As a result, when the outer cover 12 is installed on the inner cover 11, the first limiting part 31 can be prevented from deforming due to the elastic deformation of the elastic tab 27 (first elastic tab 27A) as the support protrusion 28 slides on the outer circumferential surface of the inner circumferential wall 21, and the first limiting part 31 and the second limiting part 32 can be reliably engaged.

[0039] Furthermore, support protrusions 28 are formed on the radially opposed elastic tabs 27. This allows the outer cover 12 to be stably mounted on the inner cover 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 spirit of the present invention.

[0041] For example, the cover 1 obtained by combining the inner cover 11 and the outer cover 12 can be installed on the opening 101 of the container body 100, or the outer cover 12 can be installed on the inner cover 11 installed on the opening 101 of the container body 100.

[0042] Furthermore, without departing from the spirit of the present invention, the constituent elements in the embodiments can be appropriately replaced with known constituent elements, and the embodiments and variations can also be appropriately combined.

[0043] The technical solutions of the present invention are described below, for example.

[0044] (1) A lid, comprising: An inner lid, which is installed at the opening of the container body that holds the contents; and The outer cover is mounted on the inner cover in a state where relative movement is restricted. The inner cover is formed as a topped cylinder having an inner peripheral wall and an inner top wall. The outer cover is formed as a topped cylinder having an outer peripheral wall and an outer top wall. The outer peripheral wall portion includes: Inner cylinder, which is externally embedded in the inner peripheral wall portion; and An outer cylinder that surrounds the inner cylinder from the radially outer side. At the lower opening edge of the inner cylinder, a plurality of elastic protrusions are provided at circumferential intervals. These elastic protrusions protrude downward and are configured to elastically deform in the radial direction. The lower ends of each of the plurality of elastic tabs are located above the lower opening edge of the outer cylinder and below the lower opening edge of the inner peripheral wall. The plurality of elastic tabs includes a first elastic tab with a support protrusion formed at the lower end, the support protrusion protruding radially inward and supporting the lower end opening edge of the inner peripheral wall portion.

[0045] (2) According to the cover described in (1), A first limiting portion is formed on the inner circumferential surface of the inner cylinder, and a second limiting portion is formed on the outer circumferential surface of the inner circumferential wall portion. The first limiting portion and the second limiting portion are configured to restrict the relative rotation of the outer cover and the inner cover by engaging with each other. The plurality of elastic tabs are four or more even-numbered elastic tabs respectively disposed at radially opposite positions to one elastic tab and another elastic tab. Of the four or more even-numbered elastic tabs, two or more even-numbered elastic tabs respectively disposed at radially opposite positions to one elastic tab and another elastic tab form the first elastic tab. The first limiting part is disposed in the inner circumferential surface of the inner cylinder at a position where it is separated from the first elastic protrusion in the circumferential direction.

[0046] Industrial availability According to the present invention, the cover can be easily given new functions.

Claims

1. A lid, characterized in that, have: An inner lid, which is installed at the opening of the container body that holds the contents; and The outer cover is mounted on the inner cover in a state where relative movement is restricted. The inner cover is formed as a topped cylinder having an inner peripheral wall and an inner top wall. The outer cover is formed as a topped cylinder having an outer peripheral wall and an outer top wall. The outer peripheral wall portion includes: Inner cylinder, which is externally embedded in the inner peripheral wall portion; and An outer cylinder that surrounds the inner cylinder from the radially outer side. At the lower opening edge of the inner cylinder, a plurality of elastic protrusions are provided at circumferential intervals. These elastic protrusions protrude downward and are configured to elastically deform in the radial direction. The lower ends of each of the plurality of elastic tabs are located above the lower opening edge of the outer cylinder and below the lower opening edge of the inner peripheral wall. The plurality of elastic tabs include: a first elastic tab having a support protrusion formed at its lower end, the support protrusion protruding radially inward and supporting the lower end opening edge of the inner peripheral wall portion; and a second elastic tab having no support protrusion.

2. The cover according to claim 1, characterized in that, A first limiting portion is formed on the inner circumferential surface of the inner cylinder. A second limiting portion is formed on the outer peripheral surface of the inner peripheral wall portion. The first limiting part and the second limiting part are configured to restrict the relative rotation of the outer cover and the inner cover by engaging with each other. The plurality of elastic tabs are four or more even-numbered elastic tabs respectively disposed at radially opposite positions to one elastic tab and another elastic tab. Of the four or more even-numbered elastic tabs, two or more even-numbered elastic tabs respectively disposed at radially opposite positions to one elastic tab and another elastic tab form the first elastic tab. The first limiting part is disposed in the inner circumferential surface of the inner cylinder at a position where it is separated from the first elastic protrusion in the circumferential direction.

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