JP7330637B2 - container cap - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container cap that is attached to the mouth of a container body that houses contents and allows the contents to be poured out.

BACKGROUND ART As containers for containing liquids, powders, granules, etc. such as food seasonings, there are known containers comprising a container body for containing contents and a container cap having an outlet for pouring out the contents. ing. For example, in Patent Document 1, a cap body provided with a spout and a lid body connected to the cap body via a hinge portion that can be freely opened and closed are provided, and the spout is a sealed cap that is pulled up by pulling up a pull ring. A cap provided with a stopper is disclosed.

JP 2017-081604 A

However, in the cap described in Patent Document 1, it is necessary to remove the sealing plug by pulling the pull ring upward after opening the top lid, and the contents are likely to scatter when removing the sealing plug, and force is required. There is room for improvement in that it is sometimes difficult for weak users to remove the sealing plug.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a container cap that prevents the contents from scattering when the cap is opened and allows the cap to be easily opened.

The present invention has been made to solve the above problems, and a container cap according to the present invention includes an inner stopper attached to the mouth of a container body for containing contents;
a cap body that is rotatably attached to the inner plug and has a spout for pouring out the contents;
The internal plug has a partition wall portion formed with a communication hole communicating with the spout, and a sealing plug that is integrally connected to the partition wall portion via a thin breakage portion and closes the communication hole,
The cap main body includes a top wall in which the spout is formed, an inner cylindrical portion hanging down from the top wall, an inward convex portion provided on the inner peripheral surface of the inner cylindrical portion, and the inner cylindrical portion. an engagement rib depending radially inwardly from the top wall;
The sealing plug includes an upright portion that engages with the engaging rib to restrain rotation of the sealing plug with respect to the cap body, and an upright portion that engages with the inward convex portion after the thin wall breaking portion is broken to prevent the cap from rotating. and an outward projection for supporting the sealing plug on the main body.

In addition, in the container cap of the present invention, the sealing plug has a projecting piece extending downward from an outer peripheral edge of the sealing plug connected to the thin-walled broken portion,
It is preferable that the protruding piece is configured to engage with the inner plug after the thin broken portion is broken to form a gap between the communication hole and the outer peripheral edge of the sealing plug.

Further, in the container cap of the present invention, the cap body has a positioning protrusion provided on the lower surface of the top wall,
It is preferable that the positioning convex portion is configured to abut against the standing portion after the thin breaking portion is broken to form a flow path for the contents between the sealing plug and the cap body.

Further, in the container cap of the present invention, the inner peripheral surface of the inner cylindrical portion is provided with a holding protrusion located above the inward protrusion,
It is preferable that the retaining projection is configured to be able to engage with the outward projection of the sealing plug in the vicinity of the top wall after the thin breaking portion is broken.

Moreover, in the container cap of the present invention, it is preferable that the cap body is threadedly engaged with the inner plug.

Moreover, it is preferable that the container cap of the present invention includes a lid that is connected to the cap body via a hinge portion and that can close the spout.

ADVANTAGE OF THE INVENTION According to this invention, the cap for containers which the contents are hard to scatter at the time of opening, and can perform opening work easily can be provided.

1 is a cross-sectional side view showing an unused container in which a container cap according to an embodiment of the present invention is attached to the mouth of a container body; FIG. 2 is a cross-sectional view of the container cap shown in FIG. 1 taken along line AA. FIG. FIG. 2 is a cross-sectional view alone showing a cap main body of the container cap shown in FIG. 1 ; 4 is a bottom view of the cap body shown in FIG. 3; FIG. FIG. 3 is a cross-sectional view showing a state in which the cap body of the container cap shown in FIG. 1 is raised; FIG. 6 is a cross-sectional view showing a state in which the cap body is lowered from the state shown in FIG. 5; 7 is a partially enlarged view of the container cap shown in FIG. 6. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an unopened state (unopened state) in which a container cap 1, which is an embodiment of the present invention, is attached to a container body 2 adapted thereto. A container cap 1 according to this embodiment includes an inner plug 10 and a cap body 30 . A lid body 50 is provided on the cap body 30 . The inner plug 10, the cap main body 30, and the lid body 50 can be made of synthetic resin, but the material is not particularly limited. In this specification, claims, abstract and drawings, the side where the cap body 30 is located with respect to the inner plug 10 (the upper side in FIG. The side where the inner plug 10 is located is the downward side.

The container main body 2 includes a cylindrical mouth portion 4, a body portion (not shown) that continues below the mouth portion 4, and a bottom portion that closes the lower end of the body portion. The container main body 2 has a storage space S inside which contents are stored. The container body 2 can be formed, for example, by extrusion blow molding using a cylindrical parison made of a synthetic resin material, biaxial stretch blow molding using a bottomed cylindrical preform, or the like. , but not limited to.

The outer peripheral surface of the mouth portion 4 is provided with an annular fitting projection 5 that engages with a fitting projection 11a provided on a fitting cylindrical portion 11 of an inner plug 10, which will be described later. Also, the seal wall 18 of the inner plug 10 abuts against the inner peripheral surface of the mouth portion 4 .

The inner plug 10 is attached to the mouth portion 4 of the container body 2 . The container cap 1 of the present example can be attached by attaching the inner plug 10 to the mouth portion 4 in a state where the cap main body 30 is attached to the inner plug 10 in advance. As a result, the inner plug 10 and the cap main body 30 can be integrally attached to the container main body 2 . Alternatively, the cap main body 30 may be attached to the inner plug 10 after the inner plug 10 is attached to the mouth portion 4 by plugging or the like.

The inner plug 10 has a fitting tubular portion 11 fitted to the outer peripheral surface of the mouth portion 4 . A rotation suppressing portion 11 b for suppressing rotation with respect to the mouth portion 4 is provided on the inner peripheral surface of the fitting cylinder portion 11 . The rotation suppressing portion 11b can be a projection that engages with the convex portion 6 provided on the outer peripheral surface of the mouth portion 4 in the circumferential direction. As a result, the inner plug 10 is held with its rotation suppressed with respect to the mouth portion 4 . At least one of the inner plug 10 side and the mouth portion 4 side may be provided with the rotation suppressing portion 11b (or a convex portion). Note that the rotation suppressing portion 11b and the convex portion may not be provided. In that case, for example, the size of the inner plug 10 is adjusted to increase the fitting strength with the mouth portion 4, thereby setting to suppress rotation. can. Also, the inner plug 10 may be rotatable with respect to the mouth portion 4 .

The inner plug 10 has a partition wall portion 12 covering the upper end opening of the mouth portion 4 . The partition wall portion 12 continues to the radially inner side of the fitting cylinder portion 11 . A communication hole 13 communicating with the outlet 31 is formed in the partition wall 12 . Further, the partition wall portion 12 is provided with a cylindrical outflow tube portion 14 surrounding the communication hole 13 .

The internal plug 10 has a sealing plug 16 that is integrally connected to the partition wall portion 12 via a thin broken portion 15 and closes the communication hole 13 . The thin breaking portion 15 is an annular (annular in this example) thin portion provided along the outer peripheral edge portion 21 of the sealing plug 16 , and can be easily broken by rotating the sealing plug 16 with respect to the partition wall portion 12 . It is designed so that it can be broken. When the thin broken portion 15 is broken, the communication hole 13 is opened and the sealing plug 16 is separated from the inner plug 10, as shown in FIGS. That is, the housing space S of the container body 2 and the spout 31 communicate with each other through the communication hole 13 .

As shown in FIG. 1 , the thin fracture portion 15 of this example connects the outer peripheral edge portion 21 of the sealing plug 16 and the inward flange 17 extending radially inward from the inner peripheral surface of the outflow cylinder portion 14 . ing. The thin broken portion 15 in this example is positioned at the lower end portion of the sealing plug 16, but is not limited to this.

The thin breaking portion 15 in this example is connected to the inward flange 17 located at the lower end portion of the outflow tube portion 14, but is not limited to this. For example, the thin breakage portion 15 may continue to the intermediate portion of the outflow tube portion 14 in the axial direction. Note that the inward flange 17 is not an essential component.

The inner plug 10 has a cylindrical sealing wall 18 that contacts the inner peripheral surface of the mouth portion 4 . The seal wall 18 is positioned radially inward of the tubular fitting portion 11 and is connected to the tubular fitting portion 11 via the flange portion 12a. When fitting the inner plug 10 to the mouth portion 4 of the container body 2, the mouth portion 4 is inserted into a recess surrounded by the fitting cylinder portion 11, the flange portion 12a, and the seal wall 18 and fitted.

The partition wall portion 12 of the inner plug 10 is provided with a support cylinder portion 19 that continues above the seal wall 18 . A male screw 20 is provided on the outer peripheral surface of the support cylinder portion 19 .

The sealing plug 16 has an annular plate portion 22 extending perpendicularly to the axis O from the upper end of a cylindrical outer peripheral edge portion 21 to which the thin broken portion 15 is connected, and an annular plate portion 22 protruding upward from the inner peripheral edge portion of the annular plate portion 22 . It has a top cylindrical central shaft portion 23 .

A standing portion 24 extending along the axis O is provided on the upper surface of the annular plate portion 22 . The standing portion 24 continues to the outer peripheral surface of the central shaft portion 23, and the top surfaces of the standing portion 24 and the central shaft portion 23 are formed to have the same height. The standing portions 24 are provided at two circumferential locations around the axis O, as shown in FIG. Also, the two standing portions 24 are evenly arranged around the axis O in the circumferential direction. Moreover, the standing portion 24 of this example is formed in a substantially fan shape in a plan view shown in FIG. 2 . The interior of the standing portion 24 (the space surrounded by the standing portion 24 and the central shaft portion 23) is hollow. Note that the cavity may not be provided.

An outward convex portion 25 is provided on the outer peripheral surface of each standing portion 24 . The outward convex portion 25 extends in the circumferential direction along the outer peripheral surface of the standing portion 24 . The outward convex portion 25 is provided at an intermediate portion in the height direction of the standing portion 24 . The position and shape of the outward protrusion 25 can be changed as appropriate.

The sealing plug 16 has a projecting piece 26 extending downward from the outer peripheral edge portion 21 connected to the thin broken portion 15 . The protruding piece 26 is configured to engage with the inner plug 10 after the thin-walled fractured portion 15 is fractured so as to prevent the communication hole 13 from being blocked. The projecting piece 26 is provided on a portion of the sealing plug 16 in the circumferential direction. In this example, the sealing plug 16 is provided with four projecting pieces 26, and the four projecting pieces 26 are evenly spaced apart from each other in the circumferential direction. The four protruding pieces 26 each extend obliquely downward and open radially outward. Each protruding piece 26 has its tip (lower end) positioned radially outward. As shown in FIGS. 5 to 7, the lower end portion (peripheral edge portion 21) of the projecting piece 26 is placed on the upper surface of the inward flange 17 when the sealing plug 16 is lifted after the thin broken portion 15 is broken.

3 and 4 show the cap body 30 alone. The cap body 30 includes a top wall 32 having a spout 31 formed therein, a mounting cylinder portion 34 hanging down from the top wall 32, an outer cylinder portion 35 positioned radially outside the mounting cylinder portion 34, and a mounting cylinder portion 34. and an inner cylindrical portion 36 positioned radially inward of the .

The cap main body 30 of this example has a pouring tube 33 extending upward from the top wall 32 , and a pouring port 31 is defined inside the pouring tube 33 . A female thread 34 a corresponding to the male thread 20 of the inner plug 10 is provided on the inner peripheral surface of the mounting cylinder portion 34 . An inward convex portion 37 is provided on the inner peripheral surface of the inner tubular portion 36 . The outer peripheral surface of the inner tubular portion 36 is provided so as to be in close contact with the inner peripheral surface of the outflow tubular portion 14 .

The cap body 30 also has an engagement rib 38 that hangs down from the top wall 32 radially inside the inner cylindrical portion 36 . As shown in FIG. 2, two engaging ribs 38 are engaged with the upright portion 24 in this example. The cap body 30 of this example has two engaging ribs 38 evenly arranged in the circumferential direction, and each engaging rib 38 is arranged in the space between the two upright portions 24 . Rotation of the sealing plug 16 with respect to the cap body 30 is suppressed by the engagement between the engaging rib 38 and the standing portion 24 . That is, when the cap body 30 is rotated with respect to the fitting tube portion 11 and the partition wall portion 12 of the inner plug 10, the engaging rib 38 and the upright portion 24 are engaged in the circumferential direction (rotational direction) to form a sealing plug. 16 rotates with the cap body 30 . As shown in FIG. 2, the engaging rib 38 is formed so that the width gradually decreases from the outer peripheral edge portion that continues to the inner peripheral surface of the inner tubular portion 36 toward the radially inner side (axis line O). . In addition, as shown in FIG. 2 , the inner peripheral edge portion (diametrically inner end portion) of the engaging rib 38 is arranged along the outer peripheral surface of the central shaft portion 23 . The gap in the circumferential direction between the engaging rib 38 and the standing portion 24 and the gap between the outer peripheral surface of the standing portion 24 and the inner peripheral surface of the inner cylindrical portion 36 shown in FIG. It becomes the flow path of the contents.

The cap body 30 has a positioning protrusion 39 provided on the lower surface of the top wall 32 . The positioning projection 39 is configured to contact the upright portion 24 when the sealing plug 16 comes close to the top wall 32 after the thin breaking portion 15 is broken. As a result, an appropriate gap is formed between the sealing plug 16 and the inner surface of the cap body 30 to serve as a flow path for the contents. In this example, as shown in FIG. 4, three positioning protrusions 39 are provided between two engaging ribs 38 at intervals in the circumferential direction. Also, the positioning convex portion 39 is connected to the inner peripheral surface of the inner cylindrical portion 36 . At least one positioning protrusion 39 may be provided, but it is desirable that a plurality of positioning protrusions 39 be provided at the same intervals.

The inner peripheral surface of the inner cylindrical portion 36 is provided with a holding convex portion 40 positioned above the inward convex portion 37 . It is configured to engage the outward protrusion 25 when in close proximity to the wall 32 . Since the downward movement of the sealing plug 16 is suppressed when the holding protrusion 40 engages with the outward protrusion 25, the sealing plug 16 can be maintained close to the top wall 32 (FIGS. 6 and 7). 7). Note that the holding convex portion 40 may not be provided. Even if the retaining protrusion 40 is not provided, the sealing plug 16 moved toward the cap main body 30 after the thin breaking portion 15 is broken is engaged and held by the inward protrusion 37 and the outward protrusion 25. .

The cap body 30 of this example is threadedly engaged with the inner plug 10, and by rotating the cap body 30 with respect to the inner plug 10, the cap body 30 can be vertically moved with respect to the inner plug 10. can be done. In addition, if the cap body 30 is rotatable with respect to the inner plug 10, the screw portion (the male thread 20 and the female thread 34a) may not be provided.

The container cap 1 of this example includes a lid body 50 that covers the spout 31 as shown in FIG. 1 and the like. The lid body 50 is connected to the cap body 30 via a hinge portion 51 and is configured to be swingable about the hinge portion 51 as a fulcrum. That is, the lid body 50 of this example is formed integrally with the cap body 30 . The lid body 50 of this example has a ceiling wall 52 , a peripheral wall 53 hanging down from the outer peripheral edge of the ceiling wall 52 , and a closing portion 54 hanging down from the ceiling wall 52 inside the peripheral wall 53 . Further, the hinge portion 51 is connected to the rear portion of the peripheral wall 53 , and the knob portion 55 is provided to the front portion of the peripheral wall 53 .

A method of using the container cap 1 will be described below. When setting the container cap 1 on the container body 2, the cap body 30 is attached to the inner plug 10 in advance, and the inner plug 10 and the cap body 30 are attached to the mouth portion 4 of the container body 2 filled with contents. can be installed by plugging together. As a result, an unopened content-filled container including the container cap 1 and the container body 2 is obtained (see FIG. 1).

Then, when opening the container from the state shown in FIG. When the cap body 30 is rotated, the engagement rib 38 and the upright portion 24 are engaged in the circumferential direction, and the sealing plug 16 is rotated with respect to the partition wall portion 12, thereby breaking the thin breaking portion 15 (Fig. 5). reference). When the thin fractured portion 15 is broken, the communication hole 13 is released, and the accommodation space S and the spout 31 are communicated with each other, so that the content can be spouted through the spout 31 . Further, when the thin breaking portion 15 is broken, the sealing plug 16 is supported by the cap body 30 by the axial engagement between the outward protrusion 25 and the inward protrusion 37 . That is, the sealing plug 16 moves from the inner plug 10 side to the cap main body 30 side by breaking the thin broken portion 15 .

In this example, as the cap body 30 rotates, the cap body 30 rises with respect to the inner plug 10 by engaging the male thread 20 and the female thread 34a, as shown in FIG. When the cap body 30 rises, the sealing plug 16 also rises together with the cap body 30 due to the axial engagement between the outward protrusion 25 and the inward protrusion 37 .

Then, after rotating the cap body 30 in the screwing-out direction until the protruding piece 26 of the sealing plug 16 moves above the inward flange 17 of the partition wall 12, the cap body 30 is rotated in the screwing-in direction to tighten the cap. When the body 30 is lowered, the protrusion 26 is supported from below by the inward flange 17, so that the sealing plug 16 does not descend and only the cap body 30 returns to its original position. As a result, as shown in FIGS. 6 and 7, the sealing plug 16 and the top wall 32 of the cap body 30 are axially adjacent to each other. Then, when the sealing plug 16 and the cap body 30 approach each other in the axial direction, the engagement between the outward protrusion 25 and the inward protrusion 37 is released, and as shown in FIGS. 25 and the holding protrusion 40 are engaged. Thereby, the sealing plug 16 is held at a position close to the cap body 30 . When the sealing plug 16 and the cap main body 30 approach each other in the axial direction, the upper surface of the standing portion 24 abuts the lower surface of the positioning projection 39 , so that the content between the sealing plug 16 and the cap main body 30 is reduced. Adequate clearance is provided for objects to pass through. In this example, a gap corresponding to the height of the positioning convex portion 39 is formed between the lower surface of the top wall 32 and the upper surfaces of the central shaft portion 23 and the standing portion 24 .

When the contents of the storage space S are to be discharged, the cover 50 is opened with the hinge portion 51 as a fulcrum, thereby releasing the spout 31 and allowing the contents to be discharged. Then, by placing the container main body 2 in an inverted position and squeezing (squeezing) the body of the container main body 2 as necessary, the sealing plug 16 and the cap main body 30 are separated from the housing space S through the communication hole 13 and furthermore. The contents that have passed through the gap between them can be discharged from the outlet 31 .

As described above, the container cap 1 of the present embodiment includes the inner stopper 10 attached to the mouth portion 4 of the container body 2 that accommodates the contents, and the inner stopper 10 rotatably attached to the inner stopper 10 to a cap body 30 having a spout 31 for pouring out a substance, the inner plug 10 having a partition wall portion 12 formed with a communication hole 13 communicating with the spout 31; The cap body 30 has a top wall 32 formed with a spout 31, an inner cylindrical portion 36 hanging down from the top wall 32, and an inner cylindrical portion 36. It has an inward convex portion 37 provided on the inner peripheral surface of the cylindrical portion 36 and an engaging rib 38 hanging down from the top wall 32 on the radially inner side of the inner cylindrical portion 36 . An upright portion 24 that engages with the rib 38 to suppress the rotation of the sealing plug 16 with respect to the cap body 30, and an inward projection 37 that engages with the inward convex portion 37 after the thin wall breaking portion 15 is broken to support the sealing plug 16 on the cap body 30. An outward convex portion 25 is provided to allow the

With such a configuration, it is possible to break the thin breaking portion 15 simply by rotating the cap body 30 with respect to the inner plug 10 and open the sealed container. Moreover, since the communicating hole 13 of the inner plug 10 and the sealing plug 16 are covered from the outside by the cap body 30, there is no risk of the contents scattering when the cap is opened. Further, after the thin breaking portion 15 is broken, the sealing plug 16 can be supported by the cap body 30 due to the engagement between the inward convex portion 37 and the outward convex portion 25 , and the sealing plug 16 is attached to the container body 2 . can be suppressed from falling into the interior (accommodation space S).

As described above, according to the container cap 1 of the present embodiment, the contents are less likely to scatter when the cap is opened, and it is possible to easily open the cap.

In the present embodiment, the sealing plug 16 has a projecting piece 26 extending downward from the outer peripheral edge portion 21 of the sealing plug 16 connected to the thin breaking portion 15, and the projecting piece 26 extends inwardly after the thin breaking portion 15 is broken. It is configured to engage with the plug 10 to form a gap between the communication hole 13 and the outer peripheral edge portion 21 of the sealing plug 16 . By providing such a protruding piece 26, it is possible to more reliably prevent the sealing plug 16 from blocking the communication hole 13 after the thin wall breaking portion 15 is broken. As a result, the contents stored in the container body 2 can be poured out more smoothly.

In addition, in this embodiment, the cap body 30 has a positioning protrusion 39 provided on the lower surface of the top wall 32, and the positioning protrusion 39 abuts on the standing portion 24 after the thin breaking portion 15 is broken. It is configured to form a flow path for the contents between the sealing plug 16 and the cap body 30 . By adopting such a configuration, it is possible to secure an appropriate flow path for the contents between the sealing plug 16 and the cap body 30 after the thin wall breaking portion 15 is broken. As a result, the contents stored in the container body 2 can be poured out more smoothly.

Further, in the present embodiment, a holding projection 40 positioned above the inward projection 37 is provided on the inner peripheral surface of the inner cylindrical portion 36, and the holding projection 40 is formed after the thin breaking portion 15 is broken. , the outward projection 25 of the sealing plug 16 adjacent to the top wall 32 can be engaged. By adopting such a configuration, it is possible to more reliably maintain the state in which the sealing plug 16 is close to the top wall 32 side after the thin wall breaking portion 15 is broken. This further stabilizes the position of the sealing plug 16 after the thin-walled fractured portion 15 is broken, so that the desired flow path for the contents can be secured in a more stable state.

Further, in this embodiment, the cap body 30 is threadedly engaged with the inner plug 10 . With such a configuration, by simply rotating the cap body 30 with respect to the inner plug 10 , the sealing plug 16 can be moved in the axial direction while being rotated together with the cap body 30 . That is, by rotating the cap main body 30 with respect to the inner plug 10, the sealing plug 16 can be pulled up while being rotated, thereby further facilitating the opening operation.

Further, in this embodiment, the cap body 30 is connected to the cap body 30 via a hinge portion 51 and is provided with a lid body 50 capable of closing the spout 31 . With such a configuration, after opening, the spout 31 can be easily opened and closed by opening and closing the lid 50 with the hinge portion 51 as a fulcrum. That is, it is possible to easily open and close the spout 31 with one hand. Moreover, since the opening operation can be performed with the lid body 50 closed, it is possible to more reliably prevent the contents from scattering when the lid is opened.

Further, in this embodiment, it is preferable that the inner plug 10 has a rotation suppressing portion 11b for suppressing rotation with respect to the mouth portion 4 . With such a configuration, when opening the cap, for example, while holding the body of the container body 2 with one hand, the cap body 30 can be rotated with the other hand without pressing the inner plug 10. It is possible to For this reason, the opening operation is easier than, for example, when holding the inner plug 10 with one hand and rotating the cap main body 30 with the other hand.

It goes without saying that the present invention is not limited to the above-described embodiments, and that various modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the lid body 50 is configured to be connected to the cap body 30 by the hinge portion 51, but the present invention is not limited to this aspect, and the lid body 50 can be attached to and detached from the cap body 30 by screw engagement. may be configured to be attached to the Also, the lid 50 is not an essential component.

1: container cap 2: container main body 4: mouth portion 5: fitted convex portion 6: convex portion 10: inner plug 11: fitting cylinder portion 11a: fitting convex portion 11b: rotation suppressing portion 12: partition wall portion 13 : Communicating hole 14 : Outflow cylinder part 15 : Thin broken part 16 : Seal plug 17 : Inward flange 18 : Seal wall 19 : Support cylinder part 20 : External thread 21 : Outer peripheral edge part 22 : Annular plate part 23 : Central shaft part 24 : Standing portion 25: Outward convex portion 26: Protruding piece 30: Cap main body 31: Spout 32: Top wall 33: Spout tube 34: Mounting tube 34a: Female thread 35: Outer tube 36: Inner tube 37: Inward convex portion 38: Engagement rib 39: Positioning convex portion 40: Holding convex portion 50: Lid 51: Hinge portion 52: Top wall 53: Peripheral wall 54: Closing portion 55: Knob O: Axis S: Accommodating space

Claims (8)

an inner plug attached to the mouth of the container body containing the contents;
a cap body that is rotatably attached to the inner plug and has a spout for pouring out the contents;
The internal plug has a partition wall portion formed with a communication hole communicating with the spout, and a sealing plug that is integrally connected to the partition wall portion via a thin breakage portion and closes the communication hole,
The cap main body includes a top wall in which the spout is formed, an inner cylindrical portion hanging down from the top wall, an inward convex portion provided on the inner peripheral surface of the inner cylindrical portion, and the inner cylindrical portion. an engagement rib depending radially inwardly from the top wall;
The sealing plug includes an upright portion that engages with the engaging rib to restrain rotation of the sealing plug with respect to the cap body, and an upright portion that engages with the inward convex portion after the thin wall breaking portion is broken to prevent the cap from rotating. an outward projection for supporting the sealing plug on the main body ,
The sealing plug has a protruding piece extending downward from an outer peripheral edge of the sealing plug connected to the thin broken portion,
The projecting piece is configured to engage with the inner plug to form a gap between the communication hole and the outer peripheral edge of the sealing plug after the thin-walled broken portion is broken. cap for. an inner plug attached to the mouth of the container body containing the contents;
a cap body that is rotatably attached to the inner plug and has a spout for pouring out the contents;
The internal plug has a partition wall portion formed with a communication hole communicating with the spout, and a sealing plug that is integrally connected to the partition wall portion via a thin breakage portion and closes the communication hole,
The cap main body includes a top wall in which the spout is formed, an inner cylindrical portion hanging down from the top wall, an inward convex portion provided on the inner peripheral surface of the inner cylindrical portion, and the inner cylindrical portion. an engagement rib depending radially inwardly from the top wall;
The sealing plug includes an upright portion that engages with the engaging rib to restrain rotation of the sealing plug with respect to the cap body, and an upright portion that engages with the inward convex portion after the thin wall breaking portion is broken to prevent the cap from rotating. an outward projection for supporting the sealing plug on the main body,
The cap body has a positioning projection provided on the lower surface of the top wall,
The positioning protrusion is configured to abut against the upright portion after the thin-walled breaking portion is broken to form a flow path for the contents between the sealing plug and the cap body. container cap. an inner plug attached to the mouth of the container body containing the contents;
a cap body that is rotatably attached to the inner plug and has a spout for pouring out the contents;
The internal plug has a partition wall portion formed with a communication hole communicating with the spout, and a sealing plug that is integrally connected to the partition wall portion via a thin breakage portion and closes the communication hole,
The cap main body includes a top wall in which the spout is formed, an inner cylindrical portion hanging down from the top wall, an inward convex portion provided on the inner peripheral surface of the inner cylindrical portion, and the inner cylindrical portion. an engagement rib depending radially inwardly from the top wall;
The sealing plug includes an upright portion that engages with the engaging rib to restrain rotation of the sealing plug with respect to the cap body, and an upright portion that engages with the inward convex portion after the thin wall breaking portion is broken to prevent the cap from rotating. an outward projection for supporting the sealing plug on the main body,
A holding projection located above the inward projection is provided on the inner peripheral surface of the inner cylindrical portion,
A cap for a container, wherein the holding projection is configured to be able to engage with the outward projection of the sealing plug in the vicinity of the top wall after the thin breaking portion is broken. The sealing plug has a protruding piece extending downward from an outer peripheral edge of the sealing plug connected to the thin broken portion,
4. The projecting piece is configured to engage with the inner plug to form a gap between the communication hole and the outer peripheral edge of the sealing plug after the thin broken portion is broken. The container cap described in . The cap body has a positioning projection provided on the lower surface of the top wall,
2. The positioning protrusion is configured to abut on the standing portion after the thin-walled breaking portion is broken to form a flow path for contents between the sealing plug and the cap body. 3. The container cap according to 3 above . A holding projection located above the inward projection is provided on the inner peripheral surface of the inner cylindrical portion,
3. The container cap according to claim 1 or 2 , wherein said holding convex portion is configured to be able to engage with said outward convex portion of said sealing plug adjacent to said top wall after said thin broken portion is broken. . The container cap according to any one of claims 1 to 6, wherein said cap body is threadedly engaged with said inner plug. The container cap according to any one of claims 1 to 7, further comprising a lid that is connected to the cap main body via a hinge and can close the spout.

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