JP2020193027A - cap - Google Patents

Abstract

To reliably determine whether or not it is in an unopened state.SOLUTION: A cap capable of reliably determining whether or not it is in an unopened state according to the present invention includes: a cap main body 11 attached to a mouth portion W1 of a container main body W; and a lid body 13 for opening and closing a top wall portion 12 of the cap main body, in which: the cap main body includes the top wall portion formed with a spout 14 for contents, a fixed cylinder 15 fixed to the mouth portion, and a visually-recognizable-ring 17 surrounding the fixed cylinder from outside of a radial direction and connected to the fixed cylinder via a breakable first weakened portion 16; and the lid body includes a screw cylinder 18 detachably screwed to the cap main body, and an insertion cylinder 19 surrounding the screw cylinder from outside of a radial direction and inserted between an outer peripheral surface of the fixed cylinder and an inner peripheral surface of the visually-recognizable-ring. A locking convex portion 22 is formed on either the inner peripheral surface of the visually-recognizable-ring or the outer peripheral surface of the insertion cylinder, the locking convex portion being inserted into a locking recess portion 21 formed on the other surface, and the locking convex portion abuts on an end face in a circumferential direction of an inner surface of the locking recess portion when the lid body is moved, with respect to the cap main body, to a side of the circumferential direction of loosening the screw cylinder.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cap.

Conventionally, for example, as shown in Patent Document 1 below, an eclipsed tubular cap body attached to the mouth of the container body, an ecstatic tubular lid that opens and closes the top wall of the cap body, and the like. The cap body is provided with a top wall portion in which a pouring hole for the contents is formed and a fixing cylinder fixed to the mouth portion, and the lid body is a screw that is detachably screwed to the cap body. Caps with tubes are known.

JP-A-2015-163525

However, in the conventional cap, there are an unopened state in which the lid has never been removed from the cap body, and a state in which the lid is attached to the cap body again after removing the lid from the cap body. There was a problem that it was not possible to distinguish by appearance.

The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a cap capable of reliably determining whether or not it is in an unopened state.

In order to solve the above problems and achieve such an object, the cap of the present invention opens and closes a ridged tubular cap body attached to the mouth of the container body and a top wall portion of the cap body. The cap body is provided with a ridged tubular lid body, and the cap body has a top wall portion in which an injection hole for contents is formed, a fixed cylinder fixed to the mouth portion, and the fixed cylinder in the radial direction. The lid is provided with a visible ring that is enclosed from the outside of the cap and is connected to the fixed cylinder via a breakable first weakening portion, and the lid is detachably screwed to the cap body. The screw cylinder is surrounded from the outside in the radial direction, and an insertion cylinder inserted between the outer peripheral surface of the fixed cylinder and the inner peripheral surface of the visual recognition ring is provided, and the inner peripheral surface of the visual recognition ring and the inner peripheral surface of the visual recognition ring are provided. On one of the outer peripheral surfaces of the insertion cylinder, a locking convex portion inserted into the locking recess formed on the other is formed, and the screw cylinder loosens in the circumferential direction with respect to the cap body. When the lid body is moved to the side, the locking convex portion comes into contact with the peripheral end surface of the inner surface of the locking recess.

According to the present invention, when the lid is moved to the loosening side in the circumferential direction in which the screw cylinder loosens with respect to the cap body, the locking convex portion hits the end face in the circumferential direction of the inner surface of the locking recess. Since they are in contact with each other, the circumferential force applied to the lid is transmitted to the visual recognition ring through the locking convex portion and the inner surface of the locking concave portion, so that the first weakening portion connecting the visual recognition ring and the fixed cylinder is connected. Is pulled in the circumferential direction and breaks, and the visual recognition ring is separated from the fixed cylinder. As a result, the visual recognition ring is located below or is removed as compared with the unopened state, and in the unopened state, after removing the lid body from the cap body, the lid body is attached to the cap body again. It is possible to easily distinguish the state (hereinafter referred to as the recap state) from the appearance, and it is possible to reliably determine whether or not the state is the unopened state.

Here, the locking convex portion may be formed on the outer peripheral surface of the insertion cylinder, and the locking concave portion may be a through hole formed in the visual recognition ring and penetrating in the radial direction.

In this case, since the locking recess is a through hole formed in the visual recognition ring that penetrates in the radial direction, the visual recognition ring having the locking recess can be easily formed.
Of the inner surface of the locking recess, the upper surface located at the upper end and facing downward is located above the upper surface of the locking convex portion, the first weakened portion is broken, and the visual recognition ring descends with respect to the fixed cylinder. When the upper surface of the locking recess is locked to the upper surface of the locking convex portion, not only the visual recognition ring is located lower than the unopened state, but also the locking recess is locked. Since it descends with respect to the convex portion, the appearance in the recap state can be surely different from the appearance in the unopened state.

Further, among the inner surfaces of the locking recesses, the upper surface located at the upper end and facing downward may be formed so as to be lockable on the upper surface of the locking convex portion.

In this case, since the upper surface of the locking concave portion is formed so as to be lockable on the upper surface of the locking convex portion, when the first weakened portion is broken and the visual recognition ring is lowered with respect to the fixed cylinder, the locking portion is locked. The upper surface of the concave portion is locked to the upper surface of the locking convex portion, so that the visual recognition ring can be kept on the locking convex portion without falling off.

Further, the cap body is provided with an inner plug which is connected to the top wall portion via a breakable second weakening portion and closes the injection hole, and the lid body holds the inner plug. A holding portion that restricts rotational movement and downward movement of the inner plug in the circumferential direction may be provided.

In this case, since the cap body has an inner plug and the lid body has a holding portion, when the lid body is moved to the loosening side in the circumferential direction where the screw cylinder loosens with respect to the cap body, the inner plug also has the same as the lid body. After being moved, the second weakened portion is broken and the injection hole is opened. Even after that, the inner plug is kept in a state of being held by the holding portion.
In this way, simply by removing the lid from the cap body, the second weakened portion is broken and the injection hole is opened, so that the effect of being able to easily distinguish between the unopened state and the recap state is remarkable. It will be successful.

According to the present invention, it is possible to reliably determine whether or not the product is in an unopened state.

It is a vertical sectional view of the cap shown as one Embodiment which concerns on this invention. It is a side view which looked at the cap shown in FIG. 1 from the outside in the radial direction. It is a figure which shows the opened state in the cap shown in FIG. It is a figure which shows the recapping state in the cap shown in FIG.

Hereinafter, the cap 1 according to the embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, the cap 1 of the present embodiment opens and closes the eclipsed tubular cap body 11 attached to the mouth portion W1 of the container body W and the top wall portion 12 of the cap body 11. It is provided with a ridged tubular lid body 13.
The cap body 11 and the lid 13 are arranged coaxially with the common shaft. Hereinafter, this common shaft is referred to as a cap shaft O, the top wall portion 35 side of the lid 13 is referred to as an upper side, and the open end side of the peripheral wall portion 36 of the cap body 11 is referred to as a lower side along the cap shaft O. When viewed from the vertical direction, the direction that intersects the cap axis O is called the radial direction, and the direction that orbits around the cap axis O is called the circumferential direction.

The peripheral wall portion 36 of the cap body 11 extends downward from the outer peripheral edge of the top wall portion 12. The lower portion of the peripheral wall portion 36 is tightly fitted in the mouth portion W1 of the container body W. A male screw portion is formed on the outer peripheral surface of the upper portion of the peripheral wall portion 36.
An injection cylinder 25 projecting upward is provided on the upper surface of the top wall portion 12. The inside of the dispensing cylinder 25 penetrates the top wall portion 12 in the vertical direction, and the inside of the dispensing cylinder 25 serves as a pouring hole 14 for the contents. The dispensing cylinder 25 is arranged coaxially with the cap shaft O.

On the outer peripheral portion of the upper surface of the top wall portion 12, a recess portion 12a that extends continuously over the entire length in the circumferential direction and opens outward in the radial direction is formed. Of the inner surface of the recessed portion 12a, a sound producing protrusion 26 protruding outward in the radial direction is formed on a peripheral surface located at the inner end in the radial direction and facing the outer side in the radial direction. The sound output protrusion 26 is formed integrally with the bottom surface of the inner surface of the recessed portion 12a facing upward. The sound output protrusion 26 is located inside the outer peripheral edge of the upper surface of the top wall portion 12 in the radial direction. A plurality of sound output protrusions 26 are provided at intervals in the circumferential direction. Two sound output protrusions 26 are provided at intervals of about 180 ° about the cap shaft O. The number and intervals of the sound output protrusions 26 may be changed as appropriate.

The cap body 11 is provided with an inner plug 24 which is connected to the top wall portion 12 via a breakable second weakening portion 23 and closes the injection hole 14. The inner plug 24 is connected to the inner peripheral surface of the injection hole 14 via a second weakening portion 23.
The inner plug 24 is formed in a humpback tubular shape. The inner plug 24 is arranged coaxially with the cap shaft O. A plurality of vertical grooves 24b extending in the vertical direction are formed at an upper portion of the outer peripheral surface of the inner plug 24 at intervals in the circumferential direction. The vertical groove 24b is open to the upper end surface of the inner plug 24. A first locking convex portion 24a protruding outward in the radial direction is formed at the lower portion of the outer peripheral surface of the inner plug 24.
The second weakening portion 23 connects the lower end portions of the outer peripheral surface of the inner plug 24 and the inner peripheral surface of the injection hole 14 to each other.

The cap body 11 has a fixing cylinder 15 fixed to the mouth portion W1 and a visual recognition ring 17 connected to the fixing cylinder 15 via a first weakening portion 16 that surrounds the fixing cylinder 15 from the outside in the radial direction and is fragile. And have.

The fixing cylinder 15 is fixed by undercut fitting to the outer peripheral surface of the mouth portion W1. In the illustrated example, the lower end of the fixed cylinder 15 is located below the lower end of the peripheral wall portion 36 of the cap body 11. The lower end of the fixed cylinder 15 may be located at the same vertical position or above the lower end of the peripheral wall portion 36 of the cap body 11. The cap main body 11 includes a flange portion 28 protruding outward in the radial direction from an intermediate portion in the vertical direction of the peripheral wall portion 36, and the fixing cylinder 15 is directed downward from the outer end portion in the radial direction of the flange portion 28. It is extending. The lower surface of the flange portion 28 is in contact with the upper end opening edge of the mouth portion W1.

The visual recognition ring 17 is arranged coaxially with the cap shaft O. The vertical size of the visual recognition ring 17 is the same as the vertical size of the fixed cylinder 15. The vertical position of the visual recognition ring 17 is the same as the vertical position of the fixed cylinder 15.
The first weakening portion 16 connects the inner peripheral surface of the visual recognition ring 17 and the lower end portions of the outer peripheral surface of the fixed cylinder 15.

The lid 13 includes a top wall portion 35, a screw cylinder 18, an insertion cylinder 19, a holding portion 27, and a sound producing portion 29.

The holding portion 27 holds the inner plug 24 and regulates the rotational movement and downward movement of the inner plug 24 in the circumferential direction. The holding portion 27 is provided at the central portion in the radial direction of the top wall portion 35, and protrudes downward from the lower surface of the top wall portion 35. The holding portion 27 is formed in a tubular shape and is arranged coaxially with the cap shaft O.
A plurality of vertical ribs 27b protruding inward in the radial direction and extending in the vertical direction are formed on the upper portion of the inner peripheral surface of the holding portion 27 at intervals in the circumferential direction. Each vertical rib 27b is separately fitted into a plurality of vertical grooves 24b formed in the inner plug 24. As a result, the relative rotational movement of the holding portion 27 and the inner plug 24 in the circumferential direction is restricted.
A second locking convex portion 27a protruding inward in the radial direction is formed at the lower portion of the inner peripheral surface of the holding portion 27. The second locking convex portion 27a is undercut fitted to the first locking convex portion 24a of the inner plug 24. As a result, the downward movement of the inner plug 24 with respect to the holding portion 27 is restricted.
The holding portion 27 is detachably and tightly fitted in the injection hole 14. The upper part of the outer peripheral surface of the holding portion 27 is fitted in the injection hole 14. The upper portion of the holding portion 27 is formed thicker than the lower portion of the holding portion 27.

The sound output portion 29 is formed in an elastically deformable columnar shape that protrudes downward from the rigid body protrusion 35a formed on the lower surface of the top wall portion 35. It is not necessary to form the rigid protrusion 35a on the lower surface of the top wall portion 35. The lower end of the sound producing portion 29 is in contact with or close to the bottom surface of the recessed portion 12a of the cap body 11.
Immediately before the tightening of the screw cylinder 18 to the cap body 11 is completed, the lower end of the sound output portion 29 is slidably contacted with the sound output protrusion 26 in the circumferential direction, and the screw cylinder 18 to the cap body 11 is elastically deformed. When the tightening is completed, the sound output protrusion 26 is overcome in the circumferential direction. At the time of overcoming this, sound is generated by vibrating as the sound producing portion 29 is restored and deformed.

The screw cylinder 18 is provided on the outer side in the radial direction from the sound output portion 29. The screw cylinder 18 is detachably screwed to the male screw portion of the peripheral wall portion 36 of the cap body 11.
The insertion cylinder 19 surrounds the screw cylinder 18 from the outside in the radial direction, and is inserted between the outer peripheral surface of the fixed cylinder 15 and the inner peripheral surface of the visual recognition ring 17. The insertion cylinder 19 is the outermost cylinder located on the outermost side in the radial direction of the lid 13. The insertion cylinder 19 may be located inside the outermost cylinder of the lid 13 in the radial direction.

Then, in the present embodiment, one of the inner peripheral surface of the visual recognition ring 17 and the outer peripheral surface of the insertion cylinder 19 has a locking convex portion 22 inserted into the locking recess 21 formed on the other. It is formed. When the lid 13 is moved to the loosening side in the circumferential direction in which the screw cylinder 18 loosens with respect to the cap body 11, the locking convex portion 22 hits the end surface 21a in the circumferential direction of the inner surface of the locking recess 21. It is configured to be in contact.
A plurality of locking concave portions 21 and a plurality of locking convex portions 22 are provided. The locking recess 21 and the locking protrusion 22 may be provided one by one.

The locking recess 21 is a through hole formed in the visual recognition ring 17 that penetrates in the radial direction. The locking recess 21 is provided in a portion of the visual recognition ring 17 located above the lower end. The locking recess 21 is provided in a portion of the visual recognition ring 17 that is separated from the first weakened portion 16 in the circumferential direction. The positions of the locking recess 21 and the first weakening portion 16 in the circumferential direction may be equal to each other.

As shown in FIG. 2, the locking recess 21 has a rectangular shape that is long in the circumferential direction when viewed from the outside in the radial direction. The inner surface of the locking recess 21 includes a pair of end faces 21a located at the outer end in the circumferential direction and extending in the vertical direction, an upper surface 21b located at the upper end and facing downward, and a lower surface 21c located at the lower end and facing upward. , Is equipped.
The shape of the locking recess 21 viewed from the outside in the radial direction may be, for example, a circular shape. The locking recess 21 may be a recess formed on the inner peripheral surface of the visual recognition ring 17 that does not penetrate in the radial direction. The inner surface of the locking recess 21 does not have to have a lower surface 21c.

The locking convex portion 22 is formed on the lower portion of the outer peripheral surface of the insertion cylinder 19 which is inserted between the outer peripheral surface of the fixed cylinder 15 and the inner peripheral surface of the visual recognition ring 17. The locking convex portion 22 projects outward from the outer peripheral surface of the insertion cylinder 19 in the radial direction, and is formed in a rectangular parallelepiped shape long in the circumferential direction. The locking convex portion 22 may be, for example, a cube or a hemisphere.
The surface of the locking convex portion 22 is an upper surface 22a located at the upper end and facing upward, a pair of end surfaces 22b located at the outer end in the circumferential direction and extending in the vertical direction, and a lower surface 22c located at the lower end and facing downward. And an outer surface 22d located at the outer end in the radial direction and facing the outer side in the radial direction.

As shown in FIG. 1, the upper surface 22a of the locking convex portion 22 faces the upper surface 21b of the locking concave portion 21 in the vertical direction, and the upper surface 21b of the locking concave portion 21 is the upper surface of the locking convex portion 22. It can be locked to 22a. The lower surface 22c of the locking convex portion 22 extends upward as it goes outward in the radial direction. The outer surface 22d of the locking convex portion 22 is located on the inner side in the radial direction from the outer peripheral surface of the visual recognition ring 17 and on the outer side in the radial direction from the inner peripheral surface.
The surface of the locking convex portion 22 does not have to have the outer surface 22d. The outer surface 22d of the locking convex portion 22 may be located at the same position in the radial direction with respect to the outer peripheral surface of the visual recognition ring 17, or may be located outside in the radial direction.

The vertical size of the locking convex portion 22 is smaller than the vertical size of the locking concave portion 21. The size of the locking convex portion 22 in the circumferential direction is smaller than the size of the locking concave portion 21 in the circumferential direction.

The locking protrusion 22 is located inside the locking recess 21 below the upper surface 21b of the locking recess 21.
In the illustrated example, the locking convex portion 22 is located at the lower end portion inside the locking concave portion 21. The upper surface 22a of the locking convex portion 22 is located below the central portion in the vertical direction of the locking concave portion 21. The vertical gap between the upper surface 22a of the locking convex portion 22 and the upper surface 21b of the locking concave portion 21 is wider than the vertical size of the locking convex portion 22.
The locking convex portion 22 may be located above the lower end portion inside the locking concave portion 21. The vertical gap between the upper surface 22a of the locking convex portion 22 and the upper surface 21b of the locking concave portion 21 may be smaller than or equal to the vertical size of the locking convex portion 22. The sizes of the locking convex portion 22 and the locking concave portion 21 in the vertical direction may be equal to each other.

As shown in FIG. 2, the locking convex portion 22 is located at the central portion in the circumferential direction inside the locking concave portion 21. The end surface 22b of the locking convex portion 22 is separated from the end surface 21a of the locking concave portion 21 in the circumferential direction. The circumferential gap between the end surface 22b of the locking convex portion 22 and the end surface 21a of the locking concave portion 21 is narrower than the size of the locking convex portion 22 in the circumferential direction.
The locking convex portion 22 may be arranged inside the locking concave portion 21 at a position deviated from the central portion in the circumferential direction in the circumferential direction. The circumferential gap between the end surface 22b of the locking convex portion 22 and the end surface 21a of the locking concave portion 21 may be greater than or equal to the size of the locking convex portion 22 in the circumferential direction. The sizes of the locking convex portion 22 and the locking concave portion 21 in the circumferential direction may be equal to each other.

As described above, according to the cap 1 according to the present embodiment, when the lid 13 is moved to the loosening side in the circumferential direction in which the screw cylinder 18 is loosened with respect to the cap main body 11, the locking convex portion 22 is formed. Since it comes into contact with the end surface 21a of the locking recess 21, the circumferential force applied to the lid 13 is transmitted to the viewing ring 17 via the locking convex portion 22 and the inner surface of the locking recess 21, so that the viewing ring The first weakening portion 16 connecting the 17 and the fixed cylinder 15 is pulled in the circumferential direction to break, and the visual recognition ring 17 is separated from the fixed cylinder 15.
As a result, the visual recognition ring 17 is located below or is removed as compared with the unopened state, and after the unopened state and the lid body 13 are removed from the cap body 11, the lid body 13 is capped again. It is possible to easily distinguish the state of being attached to the main body 11 (hereinafter referred to as the recap state) from the appearance, and it is possible to reliably determine whether or not the state is unopened.

Since the locking recess 21 is a through hole formed in the visual recognition ring 17 that penetrates in the radial direction, the visual recognition ring 17 having the locking recess 21 can be easily formed.
As shown in FIG. 2, the upper surface 21b of the locking recess 21 is located above the upper surface 22a of the locking convex portion 22, and the first weakened portion 16 is broken, as shown in FIG. When the visual recognition ring 17 is lowered with respect to the fixed cylinder 15, the upper surface 21b of the locking recess 21 is locked to the upper surface 22a of the locking convex portion 22, so that the visual recognition ring 17 is compared with the unopened state. Not only is it located below, but the locking recess 21 is lowered with respect to the locking protrusion 22, so that the appearance in the recap state can be reliably different from the appearance in the unopened state.

Since the upper surface 21b of the locking recess 21 is formed so as to be lockable on the upper surface 22a of the locking convex portion 22, when the first weakening portion 16 is broken and the visual recognition ring 17 is lowered with respect to the fixed cylinder 15. In addition, the upper surface 21b of the locking recess 21 is locked to the upper surface 22a of the locking convex portion 22, and the visual recognition ring 17 can be kept in the locking convex portion 22 without falling off.

Since the cap body 11 is provided with the inner plug 24 and the lid body 13 is provided with the holding portion 27, when the lid body 13 is moved to the loosening side in the circumferential direction in which the screw cylinder 18 is loosened with respect to the cap body 11, the inner plug 24 is also provided. It is moved in the same manner as the lid 13, the second weakening portion 23 is broken, and the injection hole 14 is opened. After that, the inner plug 24 is kept in a state of being held by the holding portion 27 as shown in FIG.
In this way, simply by removing the lid 13 from the cap body 11, the second weakened portion 23 is broken and the injection hole 14 is opened, so that the unopened state and the recap state can be easily distinguished from each other by appearance. The effect is noticeably successful.

The present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit of the present invention.

As the lid 13, a configuration may be adopted in which at least one of the holding portion 27 and the sound producing portion 29 is not provided. For example, a pull ring or the like may be adopted instead of the holding portion 27.
The upper surface of the top wall portion 12 of the cap body 11 may be formed flat over the entire area.
When the first weakened portion 16 is broken, the upper surface 21b of the locking recess 21 may not be locked to the upper surface 22a of the locking convex portion 22, and the visual recognition ring 17 may be removed.
The locking recess 21 may be formed on the outer peripheral surface of the insertion cylinder 19, and the locking protrusion 22 may be formed on the inner peripheral surface of the visual recognition ring 17.

In addition, it is possible to replace the components in the above-described embodiment with well-known components as appropriate without departing from the spirit of the present invention, and the above-mentioned modifications may be appropriately combined.

1 Cap 11 Cap body 12 Top wall 13 Lid 14 Injection hole 15 Fixed cylinder 16 First weakened part 17 Visualization ring 18 Screw cylinder 19 Insertion cylinder 21 Locking recess 21a End surface of locking recess 21b Top surface of locking recess 22 Locking convex part 22a Upper surface of locking convex part 23 Second weakening part 24 Inner plug 27 Holding part O Cap shaft W Container body W1 Mouth

Claims (4)

A topped tubular cap body attached to the mouth of the container body,
A ridged tubular lid that opens and closes the top wall of the cap body is provided.
The cap body
The top wall where the injection holes for the contents are formed, and
A fixed cylinder fixed to the mouth and
A visual recognition ring that surrounds the fixed cylinder from the outside in the radial direction and is connected to the fixed cylinder via a breakable first weakening portion is provided.
The lid is
A screw cylinder detachably screwed to the cap body and
A plug-in cylinder that surrounds the screw cylinder from the outside in the radial direction and is inserted between the outer peripheral surface of the fixed cylinder and the inner peripheral surface of the visual recognition ring is provided.
On either one of the inner peripheral surface of the visual recognition ring and the outer peripheral surface of the insertion cylinder, a locking convex portion inserted into the locking concave portion formed on the other is formed.
When the lid body is moved to the loosening side in the circumferential direction in which the screw cylinder loosens with respect to the cap body, the locking convex portion abuts on the end face in the circumferential direction of the inner surface of the locking recess. ,cap. The cap according to claim 1, wherein the locking convex portion is formed on an outer peripheral surface of the insertion cylinder, and the locking concave portion is a through hole formed in the visual recognition ring and penetrating in the radial direction. The cap according to claim 1 or 2, wherein an upper surface of the inner surface of the locking recess, which is located at the upper end and faces downward, is formed so as to be lockable on the upper surface of the locking convex portion. The cap body is provided with an inner plug that is connected to the top wall portion via a breakable second weakening portion and that closes the injection hole.
The cap according to any one of claims 1 to 3, wherein the lid body includes a holding portion that holds the inner plug and restricts rotational movement and downward movement of the inner plug in the circumferential direction.

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