JP7246831B2 - pouring cap - Google Patents

Description

The present invention relates to spout caps.

Conventionally, it has a configuration in which a pouring cap having a spout is attached to the mouth of a container body for containing contents, and a desired amount of contents stored in the container body is poured out from the spout. is known (for example, Patent Document 1).

In the liquid pouring container having such a configuration, the outer cylinder of the pouring cap is provided with a weakened portion in order to separate the container body and the pouring cap, and the pouring cap is separated from the container body by cutting the weakened portion. It is possible to remove it.

Japanese Patent No. 4120963

By the way, in the liquid pouring container as described above, since it is necessary to attach the pouring cap to the container body with a predetermined fastening force, the portion of the outer cylinder other than the weakened portion has a predetermined rigidity. When one tries to remove the spout cap from the container body by oneself after using the contents, it may be difficult to cut the weakened portion and separate the outer cylinder from the container body, and there is room for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to solve such problems, and an object thereof is to provide a dispensing cap that can be easily separated from a container body.

The pouring cap of the present invention is
A pouring cap to be attached to the mouth of the container body,
an outer peripheral wall that covers the opening from the outside in the radial direction;
a flange portion connected to the lower end portion of the outer peripheral wall and projecting radially outward from the lower end portion of the outer peripheral wall;
a top wall that closes the upper end of the outer peripheral wall;
a pouring port for pouring out the contents in the container body to the outside,
The flange portion has, at least one location in the circumferential direction, a weakened connection portion that is configured to be easier to cut than at other circumferential locations,
circumferentially extending notches are formed between the flange portion and the outer peripheral wall at continuous predetermined circumferential positions including the circumferential positions of the weakened joints,
At a circumferential position spaced apart from the weakened coupling portion at the predetermined circumferential position, the outer peripheral wall is formed with an axial cutout portion extending in the vertical direction. the notches are connected at one end to each other,
The top wall or the outer peripheral wall is characterized by having a circumferential weakened portion extending in the circumferential direction starting from the circumferential position of the circumferential notch portion.

Further, in the pouring cap of the present invention having the above configuration, it is preferable that the weakened connecting portion has a shape bent in at least one of the radial direction and the vertical direction.

In the pouring cap of the present invention, in the configuration described above, the circumferential cutout portion is formed by cutting out at least one of the radially outer side of the outer peripheral wall and the radially inner side of the flange portion at the predetermined circumferential position. It is preferably formed by

Further, in the pouring cap of the present invention, in the above configuration, a portion of the outer peripheral wall, which is located at a circumferential position where the circumferential weakened portion is formed and is adjacent to the axial cut portion, has a radial It is preferable that an uneven shape is formed on the outer surface.

In addition, in the pouring cap of the present invention, it is preferable that the circumferential weakened portion has a circumferential length of 1/2 or more circumference together with the circumferential notch portion.

Further, the pouring cap of the present invention, in the configuration described above, further includes a lid body having a side wall and a top wall that closes an upper end portion of the side wall and covering the pouring port, It is preferable that at least a pair of engaging portions that engage with each other undercut when the lid body is attached to the outer peripheral wall are provided on the radially inner side surface of the side wall.

According to the present invention, it is possible to provide a dispensing cap that can be easily separated from the container body.

1 is a front cross-sectional view showing a state in which a pouring cap according to a first embodiment of the present invention is attached to a container body; FIG. FIG. 2 is a plan view of a cap body that constitutes the pouring cap according to the first embodiment of the present invention; FIG. 4 is a bottom view of a cap body that constitutes the pouring cap according to the first embodiment of the present invention; FIG. 3 is a cross-sectional view taken along line AA of FIG. 2; FIG. 3 is a cross-sectional view taken along the line BB of FIG. 2; FIG. 3 is a cross-sectional view taken along line CC of FIG. 2; FIG. 3 is a cross-sectional view taken along line DD of FIG. 2; 1 is a front view of a cap main body that constitutes a pouring cap according to a first embodiment of the present invention; FIG. FIG. 5B is a detailed view of part E in FIG. 5A; FIG. 8 is a front cross-sectional view showing a state in which the pouring cap according to the second embodiment of the present invention is attached to the container body;

Hereinafter, the present invention will be described more specifically with reference to the drawings.

FIG. 1 shows a state in which a pouring cap 1, which is a first embodiment of the present invention, is attached to a container body 2 compatible therewith. The pouring cap 1 includes a cap body 10 having a pouring port 14a for pouring the contents to the outside and mounted on the mouth portion 2a of the container body 2, and a lid body 50 covering the pouring port 14a. In this specification, claims, abstract and drawings, the side on which the lid 50 is positioned is the upper side (the upper side in FIG. 1), and the side on which the bottom (not shown) of the container body 2 is positioned is the lower side. (lower side in FIG. 1). In addition, the radially outward direction is the direction toward the outside along a straight line perpendicular to the central axis O of the container body 2 that passes through the central axis O of the container body 2 extending in the vertical direction in FIG. , the direction toward the central axis O. Note that the central axis O in FIG. 1 is used to define the radially outer side and the radially inner side, and each member of the pouring cap 1 of the present embodiment is always formed axisymmetrically around this central axis. does not mean that there are

First, the container body 2 will be described. As shown in FIG. 1, the container body 2 has a mouth portion 2a forming an upper opening 3a of the container body 2 inside, and a trunk portion 2d connecting to the lower end portion of the mouth portion 2a and forming a storage space S for the contents. , and a bottom portion (not shown) that closes the lower end portion of the body portion 2d. A neck ring 2c is provided at the lower end of the mouth portion 2a. The container body 2 can be formed, for example, by subjecting a preform formed by injection molding, compression molding, extrusion molding, or the like to biaxial stretch blow molding. Alternatively, the container body 2 can be formed by subjecting a parison made of a synthetic resin material to extrusion blow molding. Here, synthetic resin materials such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), and polyethylene terephthalate (PET) can be used as the material of the container body 2 .

In this embodiment, the container body 2 is provided with an annular protrusion 2b for mounting the pouring cap 1 on the outer peripheral surface of the mouth portion 2a.

Next, the cap main body 10 constituting the pouring cap 1 will be described. As described above, the cap body 10 covers the mouth portion 2a of the container body 2 from the radial direction outside, and has an outer peripheral wall 11 attached to the mouth portion 2a and a lower end portion of the outer peripheral wall 11 connected to the lower end portion of the outer peripheral wall 11. an annular flange portion 12 protruding radially outward from the outer peripheral wall 11; a top wall 13 closing the upper end portion of the outer peripheral wall 11; and a pouring tube 14 which is provided radially inside the mounting tube 15 and which forms a pouring port 14a for pouring out the contents in the storage space S to the outside. A seal portion 19 is provided inside the pouring tube 14 to close the pouring port 14a when the pouring cap 1 is not in use.

The outer peripheral wall 11 has a protrusion 12d on the inner surface of the lower end thereof, and the cap body 10 is attached to the container body 2 by undercutting the protrusion 12d with the annular protrusion 2b of the mouth 2a by plugging. Can be worn.

In the present embodiment, the cap body 10 is attached to the container body 2 by undercut engagement, but the cap body 10 is not limited to this embodiment and may be attached by other means.

A cap-side protrusion 11d that protrudes radially outward is provided in the vicinity of the upper end of the outer peripheral wall 11 (see FIGS. 1 and 4D). When the lid 50 (to be described later) is attached to the cap main body 10 by screw engagement, the lid-side projection 53a provided on the inner peripheral surface of the lower side wall 53 of the lid 50 is attached to the cap-side projection 11d. By getting over the protrusion 11d, a click feeling can be given to the user. The user can recognize that the lid body 50 has reached the completely closed position by feeling this click feeling.

A flange portion 12 that protrudes radially outward is provided at the lower end portion of the outer peripheral wall 11 . In this embodiment, the flange portion 12 has a weakened connection portion 12a that is configured to be easier to cut at one location in the circumferential direction than at other locations in the circumferential direction, and is bent to have a crank shape in plan view ( 2, 4A, 5B, etc.). When the cap main body 10 is attached to the container main body 2 by undercut engagement, the flange portion 12 is pulled in the circumferential direction due to the radially outward expansion of the outer peripheral wall 11, so that the weakened connecting portion 12a is easily cut. In this way, the weakened connecting portion 12a can be made difficult to be easily cut by providing the weakened connecting portion 12a with a shape bent in the radial direction. That is, even if the flange portion 12 is pulled in the circumferential direction when the cap body 10 is attached, the crank shape of the weakened connecting portion 12a is stretched in the circumferential direction, so that high tensile stress is not applied. is. The bent shape of the weakened connecting portion 12a is not limited to the form of bending in the radial direction as shown in FIG. It may be a configuration that bends to. Moreover, the bending shape is not limited to the crank shape shown in FIG. Of course, a rectangular weakened connection portion 12a provided along the circumferential direction of the flange portion 12 may be used.

At continuous predetermined circumferential positions including the circumferential position (12 o'clock direction in FIG. 2) where the weakened connecting portion 12a is formed, circumferential cuts extending in the circumferential direction between the flange portion 12 and the outer peripheral wall 11 are provided. A notch portion 12b is provided (in FIGS. 2 and 3, the shaded portion indicates that a through hole is provided in the direction perpendicular to the plane of the paper). As shown in FIG. 2 and the like, this circumferential cutout portion 12b cuts out the radially outer side of the outer circumferential wall 11 at the predetermined circumferential position to form a thin circumferential wall 11a, and further cuts the radially inner side of the flange portion 12. It is formed in the surplus space created by lacking.

In the plan view shown in FIG. 2, an axial cutout portion 11b extending vertically is formed in the outer peripheral wall 11 at a circumferential position spaced counterclockwise from the weakened connection portion 12a (see FIG. 2). , FIGS. 4B and 5B). In the present embodiment, the axial cutout portion 11b divides the outer peripheral wall 11 at one location in the circumferential direction, and the lower end portion of the axial cutout portion 11b is connected to one end of the circumferential cutout portion 12b. (See Figure 2). In addition, the upper end of the axial cutout portion 11b extends to the top wall 13, and the circumferential position of the axial cutout portion 11b on the top wall 13 is set as a starting point and extends counterclockwise in plan view by about 2/3 of the circumference. A circumferentially weakened portion 13a is provided over the entire length (see FIGS. 1 to 3). As a result, when the circumferentially weakened portion 13a is cut by a procedure to be described later, the cap body 10 is divided into the outer peripheral wall 11 and the top wall 13 along about 3/4 of the circumference together with the circumferentially cut portion 12b. become. As a result, the outer peripheral wall 11 can be easily expanded radially outward, so that the pouring cap 1 can be easily removed from the container body 2 . From the viewpoint of ease of removal of the pouring cap 1, it is preferable that the circumferential weakened portion 13a and the circumferential notch portion 12b have a circumferential length of at least 1/2.

In the present embodiment, the weakened connection portion 12a, the circumferential cutout portion 12b, and the axial cutout portion 11b are provided only at one position in the circumferential direction, but the present invention is not limited to this aspect. You may make it provide the weakening connection part 12a, the circumferential direction notch part 12b, and the axial direction notch part 11b in two or more places of the circumferential direction.

Further, in the present embodiment, the circumferential weakened portion 13a is provided on the top wall 13, but it is not limited to this aspect. The circumferential weakened portion 13a may be formed by, for example, thinning a portion of the outer peripheral wall 11 in the radial direction. In that case, the axial cutout portion 11b does not need to extend to the top wall 13, and may extend at least to the height at which the circumferential weakened portion 13a of the outer peripheral wall 11 is provided.

In FIG. 2, at the circumferential position where the circumferential weakened portion 13a is formed, a plurality of arc-shaped concave portions 11e extending in the vertical direction are formed on the radial outer surface of the outer peripheral wall 11 adjacent to the axial notch portion 11b. provided (see FIGS. 2 and 4C). In this way, by providing the outer peripheral wall 11 adjacent to the notch 11b in the axial direction with a non-slip surface due to the uneven shape, the user can remove the pouring cap 1 from the container after using the contents in the container main body 2. When separating from the main body 2, the outer peripheral wall 11 can be easily picked. Therefore, as will be described later, it is possible to easily remove the pouring cap 1 from the container body 2 by pinching the outer peripheral wall 11 . Thus, a part of the outer peripheral wall 11 having the recess 11e on the outer surface forms a knob portion 11c.

As shown in FIG. 1, a top wall 13 that closes the outer peripheral wall 11 is formed at the upper end of the outer peripheral wall 11, and a mounting cylinder 15 extends upward from the upper surface of the top wall 13. As shown in FIG. The mounting cylinder 15 is provided with a male threaded portion 15a on its outer surface, and is threadedly engaged with a female threaded portion 56a provided on an inner surface of an upper side wall 56 of the lid 50, which will be described later, so that the lid 50 is attached to the cap body. 10 can be installed. A lower end portion of the mounting cylinder 15 constitutes a seal cylinder 15b that is fitted to the inner peripheral surface of the mouth portion 2a to liquid-tightly seal the upper opening 3a.

A pouring tube 14 forming a pouring port 14a for pouring out the contents in the container body 2 to the outside is provided inside the mounting tube 15 in the radial direction. The pouring tube 14 is connected to the upper end of the mounting tube 15 and protrudes further upward from the upper end of the mounting tube 15 .

When the spout cap 1 is not in use, the spout 14a is closed by a seal portion 19 connected to the spout tube 14 via a weakened portion 19d, as shown in FIG. A ring-shaped knob 19b is integrally provided on the upper surface of the seal 19 via a support for removing the seal 19 from the pouring tube 14 by pulling it upward. By closing the spout 14a with the sealing portion 19 when the spout cap 1 is not in use in this way, it is possible to prevent the contents from leaking outside during transportation of the container.

As shown in FIG. 1, the lid body 50 includes a side wall (a lower side wall 53 and an upper side wall 56 extending upward through a stepped portion 55) that covers the cap body 10 from the outside in the radial direction, and an upper end portion of the upper side wall 56. and a closing top wall 52 . A female threaded portion 56a is provided inside the upper side wall 56 of the lid body 50, and the lid body 50 is attached to the cap body 10 by screwing the female threaded portion 56a to the male threaded portion 15a of the cap body 10. be able to. The inner peripheral surface of the lower side wall 53 is provided with a lid-side protrusion 53a that engages with the cap-side protrusion 11d provided on the cap body 10 and gives the user a click feeling when the lid 50 is attached. there is Further, the upper side wall 56 has an outer peripheral surface formed with a longitudinal knurl 56b so that the user can easily hold and rotate the lid body 50 around the central axis O when opening the lid body 50. As shown in FIG. A twill knurl or the like may be employed instead of the vertical knurl 56b. A cylindrical sealing tube 54 is provided on the lower surface of the top wall 52 to enter the inside of the pouring tube 14 to seal the pouring port 14a when the lid 50 is closed. By attaching the lid body 50 to the cap main body 10, the spout 14a can be closed so that the contents do not leak to the outside even after the start of use.

In addition, in the present embodiment, the lid body 50 is configured to be attached to the cap body 10 by screw engagement, but it is not limited to this aspect. For example, the lid body 50 may be integrally formed with the cap body 10 via a hinge, and the lid body 50 may be attached to the cap body 10 by undercut engagement with the cap body 10. Various forms can be selected.

In discharging the contents from the pouring cap 1 configured as described above, the user rotates the lid body 50 around the central axis O while gripping the upper side wall 56 from the state shown in FIG. The screw engagement between the portion 15a and the female screw portion 56a is released. At this time, the seal tube 54 that has been in contact with the inner peripheral surface of the pouring tube 14 is also separated from the pouring tube 14, and the upper end of the pouring tube 14 is opened. In this state, the seal portion 19 connected to the extraction tube 14 via the weakened portion 19d and the knob portion 19b formed on the upper surface of the seal portion 19 are exposed.

Next, the user removes the seal portion 19 from the cap main body 10 by pulling upward the ring-shaped knob portion 19b shown in FIG. As a result, the spout 14a is opened and the contents can be poured out.

After opening the lid 50 to open the spout 14a, the user changes the posture of the container body 2 from the upright posture to the tilted posture, and pours out the content from the spout 14a by its own weight. The contents may be poured out by pressing (squeezing) the trunk portion 2d of the container body 2. FIG.

In addition, in this embodiment, the leakage of the contents is reliably suppressed by sealing the spout 14a with the seal portion 19 connected to the spout tube 14 via the weakened portion 19d in the unused state. However, it is not limited to this aspect. For example, a configuration in which a plug is provided on the lid 50 side, or a configuration in which the sealing portion 19 is not provided may be employed.

When the user has used up all the contents in the storage space S, the user removes the pouring cap 1 from the container body 2 in the following procedure for sorting.

First, the user rotates the lid body 50 around the central axis O from the state of FIG. 1 and removes it from the cap body 10 . As a result, the entire cap body 10 is exposed. Next, in FIGS. 5A and 5B, the user cuts the weakened connection portion 12a by placing a finger on the flange portion 12 adjacent to the right side of the weakened connection portion 12a and pushing it downward. In the present embodiment, circumferential notches 12b are provided between the flange portion 12 and the outer peripheral wall 11 (thin peripheral wall 11a) at continuous predetermined circumferential positions including the circumferential position of the weakened connecting portion 12a. there is Further, the flange portion 12 adjacent to the weakened connecting portion 12a is radially separated from the thin peripheral wall 11a by the circumferential notch portion 12b, and is lower than the thin peripheral wall 11a in the vertical direction. flexural rigidity is low. Therefore, the user can easily cut the weakened connection portion 12a by pushing down the flange portion 12 adjacent to the weakened connection portion 12a.

Next, the user picks up the grip portion 11c of the outer peripheral wall 11, which has become easily displaced by cutting the weakened connection portion 12a, with fingers while pulling the grip portion 11c outward in the radial direction. Then, by pulling the knob portion 11c radially outward and rightward in FIGS. 5A and 5B, the circumferential weakened portion 13a is cut counterclockwise in plan view. As described above, when the circumferentially weakened portion 13a is cut, the cap main body 10 is divided into the outer peripheral wall 11 and the top wall 13 along about 3/4 of the circumference by combining the circumferentially weakened portion 13a and the circumferentially notched portion 12b. radially divided into Therefore, the user can easily remove the pouring cap 1 from the container body 2 by pulling out the divided outer peripheral wall 11 radially outward.

As described above, in this embodiment, the pouring cap 1 attached to the mouth portion 2a of the container body 2 is connected to the outer peripheral wall 11 that covers the mouth portion 2a from the outside in the radial direction, and the lower end portion of the outer peripheral wall 11 . A flange portion 12 protruding radially outward from the lower end portion of the outer peripheral wall 11, a top wall 13 closing the upper end portion of the outer peripheral wall 11, and a pouring port 14a for pouring out the contents in the container body 2 to the outside. In addition, the flange portion 12 has a weakened connection portion 12a configured to be cut more easily than other circumferential positions at at least one location in the circumferential direction. Circumferentially extending notch portions 12b are formed between the flange portion 12 and the outer peripheral wall 11 at circumferential positions, and are spaced apart from the weakened connecting portions 12a at predetermined circumferential positions. The outer peripheral wall 11 is formed with an axial cutout portion 11b extending in the vertical direction. , and a circumferential weakened portion 13a extending in the circumferential direction starting from the circumferential position of the circumferential notch portion 12b. By adopting such a configuration, it is possible to reduce the rigidity of the flange portion 12 adjacent to the weakened connecting portion 12a by providing the circumferential notch portion 12b between the outer peripheral wall 11 (the thin peripheral wall 11a) and the flange portion 12. can. Therefore, the weakened connection portion 12a can be easily cut by the user pressing down the flange portion 12 adjacent to the weakened connection portion 12a, and as a result, the knob portion 11c of the outer peripheral wall 11, which is easily displaced radially outward, can be removed. By pinching, the outer peripheral wall 11 can be smoothly divided from the top wall 13 along the circumferential weakened portion 13a. In particular, since the circumferential cutout portion 12b and the axial cutout portion 11b are connected at one end of each other, the gripping portion 11c can be easily picked after cutting the weakened connecting portion 12a. It can be easily removed from the main body 2. In addition, at the circumferential position where the weakened connecting portion 12a is provided, the thin peripheral wall 11a can suppress the expansion of the outer peripheral wall 11 radially outward, so that the pouring cap 1 is attached to the container body 2 with a predetermined fastening force. can do. Moreover, since the protrusion 12d can be provided on the inner peripheral surface of the thin peripheral wall 11a (see FIG. 4A), the pouring cap 1 can be attached to the container body 2 more securely.

Further, in the present embodiment, the weakened connecting portion 12a is configured to have a shape bent in the radial direction. By adopting such a configuration, when the cap body 10 is attached to the container body 2, the bending shape of the weakened connection portion 12a is stretched in the circumferential direction, so that a high tensile stress is not applied to the weakened connection portion 12a. It is possible to make it difficult for the portion 12a to be easily cut.

Further, in this embodiment, the circumferential cutout portion 12b is formed by cutting out the radially outer side of the outer peripheral wall 11 and the radially inner side of the flange portion 12 at a predetermined circumferential position. By adopting such a configuration, it is possible to provide the circumferential notch 12b at a predetermined circumferential position while maintaining the outer shape of the cap body 10, thereby making it easier for the user to cut the weakened connecting portion 12a. .

Further, in the present embodiment, in the outer peripheral wall 11, an uneven shape is formed on the radial outer surface of the portion adjacent to the axial cutout portion 11b at the circumferential position where the circumferential weakened portion 13a is formed. configured to be By adopting such a configuration, the knob portion 11c of the outer peripheral wall 11, which is easily displaced in the radially outward direction after the weakened connection portion 12a is cut, can be easily picked up by the concave-convex shape. The cap main body 10 can be separated along the circumferential weakened portion 13a by gripping securely.

Further, in this embodiment, the circumferential weakened portion 13a is configured to have a circumferential length of 1/2 or more circumference together with the circumferential notch portion 12b. By adopting such a configuration, the outer peripheral wall 11 and the top wall 13 can be separated over 1/2 or more of the circumference of the cap body 10, so that the outer peripheral wall 11 can be easily separated over 1/2 or more of the circumference. The cap body 10 can be removed from the container body 2 by displacing it radially outward.

In addition, in this embodiment, a cover 50 having side walls (upper side wall 56 and lower side wall 53) and a ceiling wall 52 closing the upper end of the side wall and covering the spout 14a is provided. At least a pair of engaging portions (a cap-side projection 11d and a lid-side projection 53a) that engage with each other undercut when the lid 50 is attached to the outer peripheral wall 11 are provided on the radially inner surfaces of the side surfaces and side walls. configured to be By adopting such a configuration, when the lid body 50 is attached to the cap body 10, the user can feel a click feeling caused by the engagement of the engaging portions, whereby the lid body 50 is completely attached to the cap body 10. can recognize that

FIG. 6 shows a state in which a pouring cap 101, which is a second embodiment of the present invention, is attached to a container body 2 compatible therewith. As shown in FIG. 6, the pouring cap 101 of this embodiment has a mounting tube 115 extending upward from the upper surface of the top wall 13 . A pouring tube 114 forming a pouring port 114a for pouring out the contents in the container body 2 to the outside is provided inside the mounting tube 115 in the radial direction. The extraction tube 114 is connected to the lower end of the mounting tube 115 and protrudes further upward from the upper end of the mounting tube 115 . Further, since the mounting cylinder 115 and the pouring cylinder 114 are connected in a U-shape, the mounting cylinder 115 can be liquid-tightly sealed with the mouth portion 2a.

When the spout cap 101 is not in use, the spout 114a is closed by a seal portion 119 connected to the spout tube 114 of the cap main body 110 via the weakened portion 119d, as shown in FIG. An upper surface of the sealing portion 119 is integrally provided with a ring-shaped knob portion 119b for removing the sealing portion 119 from the pouring tube 114 by pulling upward. By closing the spout 114a with the sealing portion 119 when the spout cap 101 is not in use, it is possible to prevent the contents from leaking to the outside during transportation of the container. In this embodiment, as shown in FIG. 6, compared with the first embodiment, the open end of the ring-shaped knob 119b is arranged at a height position further apart from the sealing portion 119. , the user can more easily pick up the ring-shaped knob portion 119b and pull it upward.

Although the present invention has been described with reference to the drawings and examples, it should be noted that various variations and modifications will be readily apparent to those skilled in the art based on this disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and multiple components can be combined into one or divided. It should be understood that the scope of the present invention includes these.

For example, in the first and second embodiments, the weakened connecting portion 12a is configured to have a shape bent in the radial direction, but it is not limited to this aspect, and may be bent in the vertical direction, or may be bent in the radial direction. You may have the shape bent in both the direction and the up-and-down direction.

In addition, in the first and second embodiments, the circumferential cutout portion 12b is formed by notching the radially outer side of the outer peripheral wall 11 and the radially inner side of the flange portion 12 at a predetermined circumferential position. However, it is not limited to this aspect, and it may be configured so that only one of the outer peripheral wall 11 or the flange portion 12 is cut, or the flange is formed by the radial width of the circumferential cut portion 12b. The portion 12 may protrude radially outward.

Further, in the first and second embodiments, the radial outer surface of the knob portion 11c is formed with unevenness. Further, the uneven shape is not limited to the arcuate concave portion 11e extending in the vertical direction, and various surface shapes that make it easier for the user to grip the knob portion 11c can be adopted.

In addition, in the first and second embodiments, the circumferential weakened portion 13a is configured to have a circumferential length of 1/2 or more circumference together with the circumferential notch portion 12b, but this aspect is limited. It may be less than 1/2 round.

Further, in the first and second embodiments, the outer peripheral wall 11 and the lower side wall 53 of the lid body 50 are configured to have a pair of engaging portions, but the present invention is not limited to this aspect, and the engaging portions are not provided. may be configured.

According to the present invention, it is possible to provide a dispensing cap 1, 101 that can be easily separated from the container body 2.

1 pouring cap 2 container body 2a mouth portion 2b annular protrusion 2c neck ring 2d body portion 3a upper opening 10 cap body 11 outer peripheral wall 11a thin peripheral wall 11b axial notch portion 11c knob portion 11d cap-side protrusion (engagement portion )
11e concave portion (uneven shape)
12 Flange 12a Weakening connection 12b Circumferential notch 12d Protrusion 13 Top wall 13a Circumferential weakening 14 Extraction tube 14a Extraction port 15 Mounting tube 15a External thread 19 Seal 19b Knob 19d Weakening 50 Lid 52 Ceiling wall 53 Lower side wall (side wall)
53a lid-side protrusion (engaging portion)
54 Seal cylinder 55 Stepped portion 56 Upper side wall (side wall)
56a male threaded portion 56b longitudinal knurl 101 pouring cap 110 cap main body 114 pouring tube 114a pouring port 115 mounting tube 119 sealing portion 119b knob portion 119d weakened portion O center axis S accommodation space

Claims (6)

A pouring cap to be attached to the mouth of the container body,
an outer peripheral wall that covers the opening from the outside in the radial direction;
a flange portion connected to the lower end portion of the outer peripheral wall and projecting radially outward from the lower end portion of the outer peripheral wall;
a top wall that closes the upper end of the outer peripheral wall;
a pouring port for pouring out the contents in the container body to the outside,
The flange portion has, at least one location in the circumferential direction, a weakened connection portion that is configured to be easier to cut than at other circumferential locations,
circumferentially extending notches are formed between the flange portion and the outer peripheral wall at continuous predetermined circumferential positions including the circumferential positions of the weakened joints,
At a circumferential position spaced apart from the weakened coupling portion at the predetermined circumferential position, the outer peripheral wall is formed with an axial cutout portion extending in the vertical direction. the notches are connected at one end to each other,
The pouring cap, wherein the top wall or the outer peripheral wall is provided with a circumferentially weakened portion extending circumferentially starting from a circumferential position of the circumferential notch portion. 2. The pouring cap according to claim 1, wherein the weakened joint has a shape bent in at least one of radial direction and vertical direction. 3. The method according to claim 1, wherein the circumferential notch portion is formed by notching at least one of the radially outer side of the outer peripheral wall and the radially inner side of the flange portion at the predetermined circumferential position. Dispensing cap as described. 2. A portion of the outer peripheral wall that is adjacent to the axially cut portion and that is located at the circumferential position where the circumferentially weakened portion is formed has a concave-convex shape formed on the radially outer surface thereof. 4. A spout cap according to any one of paragraphs 1 to 3. 5. The pouring cap according to any one of claims 1 to 4, wherein said circumferentially weakened portion has a circumferential length of 1/2 or more circumference together with said circumferentially cut portion. It further comprises a cover having a side wall and a ceiling wall that closes an upper end of the side wall and covering the spout, wherein the cover is provided on the radially outer surface of the outer peripheral wall and the radially inner surface of the side wall. 6. A spout cap according to any one of claims 1 to 5, wherein at least a pair of engagement portions are provided that undercut each other when mounted on the outer peripheral wall.

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