Plugging cap

Abstract

To provide a plugging cap that can be smoothly opened by small operation force, while suppressing occurrence of blowoff.SOLUTION: A plugging cap 10 comprises a cap main body 20, an outer peripheral wall 30 and an operation handle 40. The outer peripheral wall 30 has a specific region 31 which is connected to the operation handle 40 by an outer periphery-side connection part 50 and also is connected to a skirt connected part 22a of the cap main body 20 by an inner periphery-side connection part 60. The operation handle 40 has a lever part 41 extending downward from the outer periphery-side connection part 50 and an extending part 42 extending upward from the outer periphery-side connection part 50, which is arranged separately or in contact while opposing to the outer peripheral wall 30.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a stoppering cap that is attached by being placed on the mouth of a container and then pressed downward. [Background technology]

[0002] Conventionally, as a cap to be attached to the mouth of a container such as a bottle or a PET bottle, a stopper cap is known which is attached by being placed on the mouth of the container and then pressed downward (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-17351 Summary of the Invention [Problem to be solved by the invention]

[0004] However, such a stopper cap has a problem in that, when the stopper cap is opened, the gas pressure inside the container can cause the stopper cap to fly off, a phenomenon known as blow-off.

[0005] Therefore, the present invention aims to solve these problems and provide a stopper cap that can be opened smoothly with a small operating force while suppressing the occurrence of blow-off. [Means for solving the problem]

[0006] One aspect of the stopper cap of the present invention is a stopper cap comprising: a cap body to be attached to the mouth of a container; an outer peripheral wall disposed on the outer peripheral side of the cap body and connected to the cap body; and an operating handle disposed on the outer peripheral side of the outer peripheral wall and connected to the outer peripheral wall, wherein the cap body has a main body top surface portion including a seal portion that can be fitted to the mouth of the container; and a main body skirt portion formed on the outer peripheral side of the main body top surface portion, and the outer peripheral wall has a specific region that is a partial region of the outer peripheral wall in the circumferential direction and is connected to the operating handle by an outer peripheral side connecting portion and is connected to the skirt connected portion of the cap body by an inner peripheral side connecting portion, and the operating handle has a lever portion extending downward from the outer peripheral side connecting portion and an extension portion extending upward from the outer peripheral side connecting portion and positioned opposite to or abutting the outer peripheral wall, thereby solving the above problem. Another aspect of the stopper cap of the present invention is a stopper cap comprising a cap body attached to the mouth of a container and an operating handle arranged on the outer periphery of the cap body and connected to the cap body, wherein the cap body has a body top surface portion including a seal portion that can be fitted tightly to the mouth of the container, and a body skirt portion formed on the outer periphery of the body top surface portion, and the operating handle is connected to the body skirt portion by a connecting portion and has a lever portion extending downward from the connecting portion, and an extension portion extending upward from the connecting portion and positioned opposite the cap body, spaced apart or abutting it, thereby solving the above-mentioned problem. [Effects of the Invention]

[0007] In the present invention, the valve can be easily opened with a small operating force while suppressing the occurrence of blow-off. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a stopper cap according to a first embodiment of the present invention. [Figure 2] FIG. 4 is an explanatory diagram showing the stopper cap from above. [Figure 3] FIG. 4 is an explanatory diagram showing the stopper cap from the bottom side. [Figure 4] FIG. [Figure 5] 1 is a cross-sectional view showing the state in which the stopper cap is placed on the container. [Figure 6] 1 is a cross-sectional view showing the state during the opening operation after the stopper cap is placed on the container. FIG. [Figure 7] 1 is a cross-sectional view showing the state during the opening operation after the stopper cap is placed on the container. FIG. [Figure 8] FIG. 4 is a perspective view showing a stopper cap according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] A stoppering cap 10 according to one embodiment of the present invention will be described below with reference to the drawings.

[0010] The stopper cap 10 is made of synthetic resin, and is placed on the container mouth C of a container such as a bottle, PET bottle, or metal container, and then is pressed firmly downward to attach to the container mouth C and close the container mouth C. As shown in Figures 1 to 5, the stopper cap 10 integrally comprises: a cap body 20 that is attached to the container mouth C; an outer peripheral wall 30 that is arranged on the outer peripheral side of the cap body 20 and connected to the main body skirt portion 22 of the cap body 20; an operating handle 40 that is arranged on the outer peripheral side of the outer peripheral wall 30 and connected to the outer peripheral wall 30; a first outer peripheral connecting portion 50 and a second outer peripheral connecting portion 51 that connect the outer peripheral wall 30 and the operating handle 40; an inner peripheral connecting portion 60 that connects the main body skirt portion 22 and the outer peripheral wall 30; and a TE bridge 70 that connects the outer peripheral wall 30 and the lever portion 41 of the operating handle 40.

[0011] The specific configuration of each component of the stoppering cap 10 will be described below with reference to the drawings.

[0012] First, as shown in Figures 1, 4 and 5, the cap body 20 has a disk-shaped body top surface portion 21, a substantially cylindrical body skirt portion 22 formed on the outer periphery of the body top surface portion 21, and a reinforcing portion 23 formed on the shoulder portion of the cap body 20.

[0013] The main body top surface portion 21 has a sealing portion that can be tightly fitted to the container mouth portion C, and in this embodiment, as shown in Figures 3 and 5, the sealing portion has an outer seal ring portion 21a that protrudes from the underside of the main body top surface portion 21, and an inner seal ring portion 21b that protrudes from the underside of the main body top surface portion 21 on the inner side of the outer seal ring portion 21a.

[0014] As shown in Figures 3 and 5, the outer seal ring portion 21a is a portion that can be tightly attached to the outer peripheral surface of the upper end of the container mouth portion C when the container is closed (when the stoppering cap 10 is attached to the container mouth portion C), and in this embodiment, it is formed in a circular ring shape that is connected in a circumferential direction (circumferential direction of the cap body 20).

[0015] As shown in Figures 3 and 5, the inner seal ring portion 21b is a portion that can be tightly attached to the inner surface of the upper end of the container mouth portion C when the cap is closed, and in this embodiment, it is formed in a circular ring shape that is connected in a circumferential direction (circumferential direction of the cap body 20).

[0016] As shown in FIGS. 3 and 5, the inner seal ring portion 21b has a notch portion 21c formed by cutting out a part of it (in this embodiment, the outer peripheral surface side of that part in the circumferential direction). The cutout portion 21c is formed so that its circumferential position at least partially overlaps with the circumferential position of the skirt connectable portion 22a described later (or the circumferential position of the through portion 22b or the thin-walled portion described later), that is, when viewed in the vertical direction, at least a portion of the cutout portion 21c is formed so as to be located on the inner circumferential side of (overlaps in the radial direction with) the skirt connectable portion 22a (or the circumferential position of the through portion 22b or the thin-walled portion described later). More specifically, in this embodiment, as shown in FIG. 3, the circumferential center position of the cutout portion 21c and the circumferential center position of the skirt connected portion 22a are formed to be located at the same position in the circumferential direction.

[0017] As shown in Figures 4 and 5, the main body skirt portion 22 has a skirt connecting portion 22a that is connected to the specific region 31 by the inner connecting portion 60, through portions 22b formed on both circumferential sides of the skirt connecting portion 22a, and a cap side engaging portion 22c that engages with the container mouth portion C.

[0018] As shown in Figures 4 and 5, the skirt connected portion 22a is the portion to which the inner connecting portion 60 is connected, and is formed to extend in the circumferential direction (i.e., the circumferential width is longer than the vertical width).

[0019] As shown in Figures 2 and 4, the through portion 22b is a hole-shaped portion that penetrates the main skirt portion 22 in the thickness direction, and is formed so as to extend in the vertical direction on both circumferential sides of the skirt connected portion 22a (i.e., the vertical width is longer than the circumferential width). As shown in FIG. 4, the upper end of the through portion 22b is located above the skirt connected portion 22a.

[0020] As shown in Figure 5, the cap side engagement portion 22c is formed to protrude from the inner surface of the main body skirt portion 22, and when the cap is closed, it engages with the container side engagement portion C1 that protrudes from the outer surface of the container mouth portion C, thereby preventing the stoppering cap 10 from coming off the container mouth portion C. The cap side engaging portion 22c is formed so that its circumferential position does not overlap with the circumferential position of the skirt connected portion 22a.

[0021] As shown in Figures 1 and 4, the reinforcing portion 23 is a portion that bulges outward from the outer peripheral surface of the cap body 20 (in this embodiment, the outer peripheral surfaces of the body top surface portion 21 and the body skirt portion 22) at the shoulder of the cap body 20 located above the skirt connecting portion 22a, and extends to the same height as the upper surface of the body top surface portion 21 and extends radially equally with the body skirt portion 22.

[0022] The outer peripheral wall 30 is formed as a tubular (cylindrical in this embodiment) part disposed on the outer peripheral side of the cap body 20. As shown in Figures 2 to 3 and 5, the outer peripheral wall 30 has a specific region 31 which is a partial region of the outer peripheral wall 30 in the circumferential direction and where the first outer peripheral side connecting portion 50 and the inner peripheral side connecting portion 60 are connected. This specific region 31 is preferably formed as a region having an angle range of 10 to 60 degrees in the circumferential direction of the outer peripheral wall 30.

[0023] As shown in Figures 4 and 5, the outer wall 30 has a portion located above the cap body 20, and in this embodiment, the upper end of the outer wall 30 is located protruding above the cap body 20 throughout the entire circumferential direction, thereby preventing external forces such as impacts and loads from acting directly on the cap body 20 even if a container equipped with the stoppering cap 10 is dropped or stacked.

[0024] As shown in Figures 4 and 5, the lower end of the outer peripheral wall 30 is configured to abut against the upper surface of a neck ring C2 that protrudes from the outer peripheral surface of the container mouth C when the container is closed. As shown in Figures 3 and 4, multiple cutouts 32 are formed at the lower end of the outer wall 30, and these cutouts 32 function as areas that improve water drainage when showering to clean the stopper cap 10.

[0025] As shown in Figure 1, the operating handle 40 has a lever portion 41 extending downward from the first outer periphery side connecting portion 50 (the connecting point with the first outer periphery side connecting portion 50), and an extension portion 42 extending upward from the first outer periphery side connecting portion 50 (the connecting point with the first outer periphery side connecting portion 50).

[0026] As shown in Figures 1 and 5, a portion of the extension portion 42 (the upper end portion) is positioned opposite to or in contact with the outer peripheral wall 30 (in this embodiment, it is positioned opposite to and in contact with the outer peripheral wall 30), and is formed so that a portion of it abuts against the outer peripheral wall 30 during the opening operation, as shown in Figures 6 and 7. As shown in FIG. 5, the upper end of the extension portion 42 is located below or at the same position in the vertical direction as the upper end of the outer peripheral wall 30 (the upper end of the portion of the outer peripheral wall 30 that faces the extension portion 42 in the radial direction).

[0027] As shown in Figures 1 and 2, the first outer peripheral connecting portion 50 is formed to extend in the circumferential direction (i.e., its circumferential width is longer than its vertical width), and is the portion that connects the outer peripheral wall 30 and the operating handle 40. As shown in Figures 6 and 7, the first outer peripheral connecting portion 50 is formed to be bendable (elastically deformable) so that when a user moves the lever portion 41 toward the front (outer peripheral side) to perform an opening operation, the extension portion 42 moves toward the outer peripheral wall 30 and the operating handle 40 tilts so that the lever portion 41 moves away from the outer peripheral wall 30.

[0028] As shown in Figure 2, the second outer peripheral connecting portion 51 is formed as a portion that connects the main body skirt portion 22 and the outer peripheral wall 30 at a position circumferentially shifted from the formation position of the first outer peripheral connecting portion 50 in the circumferential direction. In this embodiment, the second outer peripheral connecting portion 51 is formed in multiple locations spaced apart from each other in the circumferential direction, as shown in Figures 1 and 2, in consideration of drainage during shower processing to clean the stoppering cap 10, but it may also be formed so as to be continuous in the circumferential direction.

[0029] As shown in Figures 2 to 4, the inner connecting portion 60 is formed to extend in the circumferential direction (i.e., its width in the circumferential direction is longer than its width in the vertical direction), and is a portion that connects the main body skirt portion 22 and the outer peripheral wall 30.

[0030] In this embodiment, as shown in Figures 2 and 5, the first outer peripheral connecting portion 50 and the inner peripheral connecting portion 60 are formed so that their circumferential positions at least partially overlap each other, that is, when viewed in the vertical direction, at least a portion of the first outer peripheral connecting portion 50 is formed so as to be located on the outer peripheral side of the inner peripheral connecting portion 60 (overlapping in the radial direction). 2 and 5, in this embodiment, the circumferential center of the first outer circumferential connecting portion 50 and the circumferential center of the inner circumferential connecting portion 60 are formed to be located at the same position in the circumferential direction. This makes it easier for the force pulling the lever portion 41 to be transmitted to the cap body 20 when opening the cap, making it easier to open.

[0031] The TE bridge 70 is a part that connects the outer wall 30 and the lever portion 41, and as can be seen from Figures 2 and 6, it has a breakable portion 71 that is intended to break during the opening operation, thereby providing a so-called tamper-evident function that prevents the stopper cap 10 from being opened illicitly during the distribution process, etc.

[0032] Next, the operation of the stopper cap 10 of this embodiment during the opening operation will be described below.

[0033] First, when opening the stopper cap 10, the user moves the lever portion 41 toward the outer periphery. When the lever portion 41 is moved toward the outer periphery, the first outer periphery connecting portion 50 bends, and as can be seen from Figures 5 and 6, the operating handle 40 tilts so that the extension portion 42 moves toward the outer periphery wall 30 and the lever portion 41 moves away from the outer periphery wall 30, and the extension portion 42 abuts against the outer periphery wall 30.

[0034] When the lever portion 41 is moved toward the outer periphery, the breakable portion 71 of the TE bridge 70 connecting the lever portion 41 and the outer periphery wall 30 breaks, as shown in FIG.

[0035] Next, when the user continues to move the lever portion 41 toward the outer periphery, as shown in Figures 6 and 7, the operating handle 40 tilts so that the lever portion 41 moves toward the outer periphery, with the extension portion 42 (part of it) abutting the outer periphery wall 30 as a fulcrum, and as a result, the specific area 31 of the outer periphery wall 30 connected to the operating handle 40 by the first outer periphery side connecting portion 50, and the skirt connected portion 22a of the main body skirt portion 22 connected to the specific area 31 by the inner periphery side connecting portion 60 are pulled toward the outer periphery.

[0036] In this case, it is possible to utilize the principle of leverage, with the extension portion 42 abutting the outer peripheral wall 30 as the fulcrum, the first outer peripheral connecting portion 50 as the point of action, and the lever portion 41 as the force point, so that the outer peripheral wall 30 and part of the main body skirt portion 22 can be pulled toward the outer periphery with a light force.

[0037] As a result of a portion of the main body skirt portion 22, including the skirt connecting portion 22a, being pulled outward, as shown in Figure 7, a portion of the main body top surface portion 21 located above the skirt connecting portion 22a is partially deformed, creating a gap between the outer seal ring portion 21a and the upper end of the container mouth portion C, allowing gas inside the container to be released to the outside through this gap.

[0038] At this time, as shown in Figure 4, a through portion 22b is formed on at least one of the circumferential sides (both in this embodiment) of the skirt connectable portion 22a of the main body skirt portion 22, making it easier to move a portion of the main body skirt portion 22 including the skirt connectable portion 22a toward the outer periphery independently from the surrounding areas of the main body skirt portion 22, and a small operating force can be used to deform a portion of the main body top surface portion 21 located above the skirt connectable portion 22a.

[0039] 5, the cap-side engaging portion 22c is not present where the skirt connected portion 22a is located, and a portion of the main body skirt portion 22, including the skirt connected portion 22a, can be easily moved independently from the surrounding area of ​​the main body skirt portion 22. Therefore, when venting the gas as described above, the engagement of the cap-side engaging portion 22c with the container opening C is less likely to deform, making it easier to maintain the engagement with the container opening C.

[0040] Furthermore, since the reinforcing portion 23 is formed on the shoulder of the cap body 20 located above the skirt connectable portion 22a, when a portion of the main body skirt portion 22, including the skirt connectable portion 22a, is pulled toward the outer periphery, deformation of the shoulder of the cap body 20 is suppressed, and the main body top surface 21 located above the skirt connectable portion 22a can be deformed. This promotes deformation of the outer seal ring 21a near the specific region 31, ensuring the release of internal pressure in the container. Furthermore, as shown in FIG. 7 in this embodiment, when the extension portion 42 abuts against the outer peripheral wall 30 and the outer peripheral wall 30 tilts, it quickly comes into contact with the reinforcing portion 23, promoting deformation of the main body top surface 21.

[0041] Next, the user can pull the lever portion 41 toward the outer periphery to disengage the cap side engagement portion 22c from the container mouth portion C, and remove the stoppering cap 10 from the container mouth portion C to open it.

[0042] In the stopper cap 10 of this embodiment obtained in this manner, the outer wall 30 has a specific region 31 that is connected to the operating handle 40 by the outer connecting portion 50 and to the skirt connecting portion 22a by the inner connecting portion 60, and the operating handle 40 has a lever portion 41 extending downward from the first outer connecting portion 50 and an extension portion 42 extending upward from the first outer connecting portion 50 and positioned opposite the outer wall 30, spaced apart or abutting it. As a result, when the user moves the lever portion 41 toward the outer periphery to open the stopper cap 10, as can be seen from Figures 5 to 7, the outer periphery wall 30 and part of the main body skirt portion 22 can be moved toward the outer periphery by utilizing the principle of leverage, with the extension portion 42 abutting the outer periphery wall 30 as the fulcrum, the first outer periphery side connecting portion 50 as the point of action, and the lever portion 41 as the point of force.This allows the gas inside the container to be released to the outside with a small operating force, preventing blow-off and achieving smooth opening.

[0043] Next, a stoppering cap 10 according to a second embodiment of the present invention will be described with reference to Fig. 8. The configuration of the second embodiment is the same as that of the first embodiment, except for some components described below, and therefore, a description of only the differences will be omitted.

[0044] First, in the first embodiment, an outer peripheral wall 30 was disposed between the cap body 20 and the operating handle 40, but in the second embodiment, as shown in Figure 8, the cap body 20 and the operating handle 40 are directly connected without providing an outer peripheral wall 30.

[0045] Specifically, as shown in Figure 8, the stoppering cap 10 of the second embodiment comprises a cap body 20 that is attached to the container mouth C, an operating handle 40 that is arranged on the outer periphery of the cap body 20 and connected to the cap body 20, a connecting portion 80 that connects the cap body 20 and the operating handle 40, and a TE bridge 70 that connects the cap body 20 and the lever portion 41.

[0046] The cap body 20 in the second embodiment is formed in the same manner as in the first embodiment, except that the skirt connected portion 22a is connected to the operating handle 40 by a connecting portion 80.

[0047] The operating handle 40 is formed in the same manner as in the first embodiment, except that in the second embodiment it is connected to the main body skirt portion 22 (the skirt connected portion 22a) by the connecting portion 80, and in the second embodiment the extension portion 42 is positioned opposite to or in contact with the cap main body 20 (in this embodiment it is positioned opposite to and spaced apart from the cap main body 20).

[0048] As shown in Figure 8, the connecting portion 80 is formed to extend circumferentially (i.e., its circumferential width is longer than its vertical width), and is the part that connects the skirt connecting portion 22a of the cap body 20 and the operating handle 40. The connecting portion 80 is formed to be bendable (elastically deformable) so that when the user moves the lever portion 41 toward the front (outer periphery) to perform the opening operation, the extension portion 42 moves toward the cap body 20 and the operating handle 40 tilts so that the lever portion 41 moves away from the cap body 20.

[0049] The TE bridge 70 in the second embodiment is formed in the same manner as in the first embodiment, except that the TE bridge 70 connects the main body skirt portion 22 of the cap main body 20 and the lever portion 41.

[0050] Next, the operation of the stopper cap 10 of the second embodiment during the opening operation will be described below. Note that only the parts that differ from the first embodiment will be described below, and descriptions of other points will be omitted.

[0051] First, when opening the stopper cap 10, the user moves the lever portion 41 toward the outer periphery. When the lever portion 41 is moved toward the outer periphery, the connecting portion 80 bends, and the operating handle 40 tilts so that the extension portion 42 moves toward the cap body 20 and the lever portion 41 moves away from the cap body 20, and the extension portion 42 abuts against the cap body 20.

[0052] When the lever portion 41 is moved toward the outer periphery, the breakable portion 71 of the TE bridge 70 breaks.

[0053] Next, when the user continues to move the lever portion 41 toward the outer periphery, the operating handle 40 tilts so that the lever portion 41 moves toward the outer periphery, with the extension portion 42 (part of it) abutting the cap main body 20 as a fulcrum, and as a result, the skirt connected portion 22a of the main body skirt portion 22, which is connected to the operating handle 40 by the connecting portion 80, is pulled toward the outer periphery.

[0054] In this case, it is possible to utilize the principle of leverage, with the extension portion 42 abutting the cap main body 20 as the fulcrum, the connecting portion 80 as the point of action, and the lever portion 41 as the force point, so that a portion of the main body skirt portion 22 can be pulled toward the outer periphery with a light force.

[0055] As a result of a portion of the main body skirt portion 22, including the skirt connecting portion 22a, being pulled outward, a portion of the main body top surface portion 21 located above the skirt connecting portion 22a is partially deformed, creating a gap between the outer seal ring portion 21a and the container mouth portion C, and gas inside the container can be released to the outside through this gap (and the cutout portion 32).

[0056] Next, the user can pull the lever portion 41 toward the outer periphery to disengage the cap side engagement portion 22c from the container mouth portion C, remove the stoppering cap 10 from the container mouth portion C, and open the container.

[0057] In the second embodiment of the stoppering cap 10 obtained in this manner, the operating handle 40 has a lever portion 41 extending downward from the connecting portion 80 (the connecting point with the connecting portion 80) and an extension portion 42 extending upward from the connecting portion 80 (the connecting point with the connecting portion 80) and positioned opposite the cap body 20, spaced apart or abutting against it. As a result, when the user moves the lever portion 41 toward the outer periphery to open the stopper cap 10, it is possible to utilize the principle of leverage, with the extension portion 42 abutting the cap body 20 as the fulcrum, the connecting portion 80 as the point of action, and the lever portion 41 as the force point.As a result, a portion of the main body skirt portion 22 can be pulled toward the outer periphery with a light force, and the stopper cap can be opened smoothly with a small operating force.

[0058] The above describes in detail an embodiment of the present invention, but the present invention is not limited to the above embodiment, and various design modifications can be made without departing from the present invention as described in the claims, such as forming a stopper cap 10 by any combination of the configurations of the above or below embodiments and modified examples.

[0059] For example, in the first embodiment described above, the outer peripheral wall 30 is described as being formed in a cylindrical shape that is connected in a ring shape in the circumferential direction, but the specific form of the outer peripheral wall 30 is not limited to a cylindrical shape, and may be any shape that is arranged on the outer peripheral side of the cap body 20.

[0060] Furthermore, in the first and second embodiments described above, it has been described that the through-holes 22b are formed on both circumferential sides of the skirt connectable portion 22a, but instead of the through-holes 22b, thin-walled portions may be formed on both circumferential sides of the skirt connectable portion 22a, in which the thickness in the thickness direction of the main skirt portion 22 is thinner than the surrounding areas. The thin-walled portion is formed to extend in the vertical direction so that its upper end is positioned above the skirt connected portion 22a. If a through-hole 22b is formed on at least one of both circumferential sides of the skirt connected portion 22a, gas inside the container can be easily released to the outside through the through-hole 22b during the cap-opening operation.

[0061] Furthermore, in the above-described first and second embodiments, it has been described that the through portion 22b (or thin portion) is formed on both circumferential sides of the skirt connectable portion 22a, but the through portion 22b (or thin portion) may be formed on only one of the circumferential sides of the skirt connectable portion 22a.

[0062] Furthermore, in the first and second embodiments described above, the extension portion 42 is described as being positioned opposite and spaced apart from the outer peripheral wall 30 or the cap body 20, and is formed so that a portion of it abuts against the outer peripheral wall 30 during the opening operation, but the extension portion 42 may also abut against the outer peripheral wall 30 or the cap body 20 from the beginning (before the opening operation). [Explanation of symbols]

[0063] 10. Stopper cap 20 ··· Cap body 21 Top of the main body 21a: Outer seal ring (seal) 21b: Inner seal ring (seal) 21c Notch 22 Main body skirt 22a Skirt connection part 22b... Penetration 22c Cap side engagement part 23 Reinforcement 30 ... outer wall 31 ... specific area 32 Notch 40 Operating handle 41 Lever section 42 ··· Extension part 50 First outer circumferential coupling portion (outer circumferential coupling portion) 51 Second outer periphery side connecting portion 60... Inner circumference side connection part 70 TE Bridge 71 ··· Expected fracture area 80... Connecting part C... Container opening C1: Container side engagement part C2 ··· Neck Ring

Claims

1. A stoppering cap comprising: a cap body to be attached to a container opening; an outer peripheral wall disposed on the outer peripheral side of the cap body and connected to the cap body; and an operating handle disposed on the outer peripheral side of the outer peripheral wall and connected to the outer peripheral wall, the cap body has a body top surface portion including a seal portion that can be tightly fitted to the container opening, and a body skirt portion formed on the outer periphery of the body top surface portion, the outer peripheral wall has a specific region that is a partial region of the outer peripheral wall in the circumferential direction, the specific region being connected to the operating handle by an outer peripheral side connecting portion and connected to the skirt connected portion of the cap body by an inner peripheral side connecting portion, A stoppering cap characterized in that the operating handle has a lever portion extending downward from the outer peripheral connecting portion and an extension portion extending upward from the outer peripheral connecting portion and positioned opposite the outer peripheral wall, spaced apart or in contact with it.

2. The stopper cap described in claim 1, characterized in that the main skirt portion has a through portion or thin-walled portion formed on at least one of the circumferential sides of the skirt connecting portion, extending in the vertical direction and penetrating the thickness direction of the main skirt portion.

3. 2. The stopper cap according to claim 1, wherein the outer peripheral connecting portion and the inner peripheral connecting portion are formed so that their circumferential positions at least partially overlap each other.

4. 2. The stopper cap according to claim 1, wherein the upper end of the extension is located below the upper end of the outer wall or at the same position in the vertical direction as the upper end of the outer wall.

5. 2. The stopper cap according to claim 1, wherein the cap body has a reinforcing portion formed above the skirt connection portion and bulging outward from the outer periphery.

6. The extension portion is disposed opposite to and spaced from the outer peripheral wall, The stopper cap according to claim 1, characterized in that the outer connecting portion is formed to be bendable so that the operating handle tilts so that the extension portion moves toward the outer wall and the lever portion moves away from the outer wall.

7. the sealing portion has an inner seal ring portion that can be tightly attached to the inner periphery of the container opening, The inner seal ring portion has a cutout portion formed by cutting out a part of the inner seal ring portion, 2. The stopper cap according to claim 1, wherein the notch portion is formed so that its circumferential position at least partially overlaps with the circumferential position of the skirt connection portion.

8. 2. The stopper cap according to claim 1, further comprising a TE bridge formed to connect the lever portion and the outer peripheral wall and having a breakable portion.

9. 2. The stopper cap according to claim 1, wherein the outer peripheral wall has a portion located above the cap body.

10. A stoppering cap comprising a cap body attached to a container opening and an operating handle disposed on the outer periphery of the cap body and connected to the cap body, the cap body has a body top surface portion including a seal portion that can be tightly fitted to the container opening, and a body skirt portion formed on the outer periphery of the body top surface portion, A stoppering cap characterized in that the operating handle is connected to the main body skirt portion by a connecting portion, and has a lever portion extending downward from the connecting portion, and an extension portion extending upward from the connecting portion and positioned opposite the cap body, spaced apart or in contact with it.

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