JP2000085808A - Cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an infant from opening a cap and taking in contents by mistake while keeping convenience in opening and closing, and to prevent an infant from licking the contents adhering to a protuberance provided at the top of the cap. SOLUTION: The structure is constructed of a first cap member 5 to be screwed down onto a mouth part 3 of a container body 2 and a second cap member 6 for covering the outer circumference of the first cap member 5, and a ratchet mechanism is constituted of the first and the second cap members 5 and 6 so that the mechanism is driver through the interlocking movement of both members when the cap is closed and put in slip when the cap is opened. A protuberance 11 for breaking a seal 10 at the mouth part 3 is provided at the upper end of the first cap member 5, and a cover 20 for covering the protuberance 11 is attached to the second cap member 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap attached to the mouth of a container body such as an aluminum tube for a hair dye or a tube for a medicine, an adhesive or a toothpaste.

[0002]

2. Description of the Related Art For example, commercially available hair dyes include
Some types of hair dyes (one hair dye and two hair dyes) are mixed when used. Each hair dye shows acidity or alkalinity, and in consideration of storability, convenience, cost, etc. according to each property, each hair dye is filled in an individually designed aluminum tube container.

[0003] The aluminum tube for the hair dye 1 agent showing alkalinity is for alkali resistance, and in order to prevent the quality of the alkaline hair dye 1 agent from being deteriorated at the time of distribution, the aluminum tube is usually provided with a mouth portion. A seal is provided. In addition, such a tube is generally called a closed tube or a membrane tube.

At the time of use, the seal is pierced by the protrusion on the top surface of the cap attached to the mouth,
A hole is made and the contents are taken out of the mouth by crushing the tube.

[0005] Not only the hair dye described above, but also all of the closed tubes are formed by making a hole in the seal with a projection provided on the top surface of the cap at the time of use, and attaching the cap with the content attached to the projection to the mouth of the container. The mouth is sealed.

[0006]

In recent years, in the above-mentioned closed tube, if the tube is left after being used once, the infant mischiefs, dirtying clothes or a room with the contents, or accidentally swallowing the contents. The potential is a problem in the cosmetics industry. Such a problem exists not only in a closed tube but also in an open tube, and there is a demand in the industry to take some measure against the problem.

[0007] It is considered that the accidental ingestion is caused by an infant accidentally removing the cap and licking the mouth by mistake. Also, when the seal is broken, the contents attached to the projection on the top surface of the cap may be licked.

Accordingly, the present invention is to prevent the infant from removing the cap and to prevent the accidental ingestion of the contents while ensuring the convenience of opening and closing the cap. This is the first purpose. It is a second object of the present invention to make it difficult for an infant to lick the contents attached to the projection on the top surface of the cap.

[0009]

A first object of the present invention is to provide a cap which is screwed to a mouth of a container body, a first cap member provided with a screw portion to the mouth, And a second cap member for covering the outer periphery of the first cap member, and the first and second cap members provide a second cap member.
When the cap member is rotated in the closing direction, the first cap member is rotated together with the second cap member in the closing direction, and when the second cap member is rotated in the opening direction, the second cap member is rotated. This can be achieved by forming a ratchet mechanism in which the cap member idles with respect to the first cap member.

According to the cap of the present invention, even if the infant grasps the second cap member located on the outer peripheral side and rotates the cap in the opening direction, the cap is idled and screwed into the mouth. Since the first cap member does not rotate, the cap is prevented from being removed from the mouth. Therefore, even if the container such as a tube is left with the cap attached after being used once, it is possible to prevent the infant from accidentally ingesting the contents in the container, for example, the hair dye, and to clean the clothes and the room. Staining is prevented.

Although there are various possible structures for removing the cap when an adult uses the contents, in order to ensure the convenience of use, the second cap member is elastically deformed by using a second cap member. It is preferable that the first cap member is provided with an engagement piece that engages in the rotation direction. According to this configuration, the first cap member is rotated by operating the second cap member while maintaining the state in which the engagement piece is elastically deformed.
Can also be rotated in the opening direction.

A preferred form of the engagement piece is constituted by a part of the peripheral wall of the second cap member. Then, a projection is provided on the inner surface of the engagement piece to engage with a knurl formed on the peripheral side surface of the first cap member when pressed and deformed from the outer peripheral side. Since such an engagement piece is constituted by a part of the peripheral wall, the appearance is good and the design can be ensured, and the rotation operation can be performed while intentionally holding and pressing the engagement piece. Operation can be easily performed.

The ratchet mechanism is provided with a tooth portion formed on one of the first and second cap members so as to protrude vertically, and a ratchet mechanism provided on the other cap member and engaged with the tooth portion in the rotational direction. And a second convex part.
When one of the cap members is rotated in the opening direction, one side surface of the tooth portion with which the engaging projection comes into contact is formed as a tapered surface inclined in the opening direction according to the tip side of the tooth portion. The cap member and the second cap member may be configured to be relatively movable in the up-down direction. Thus, by providing the components of the ratchet mechanism on the first and second cap members, separate parts are not required, and the first and second cap members can be formed by appropriate means, for example, injection molding or the like. After molding, the cap of the present invention can be formed by fitting the first cap member into the second cap member. Therefore, it is possible to reduce the manufacturing cost.

According to the ratchet mechanism, when the second cap member is rotated in the opening direction,
The engagement protrusion contacts the tapered surface formed on one side surface of the tooth portion, but when opening the cap, the cap is usually opened while applying force so as to separate the cap from the container body. Rides over the teeth along the tapered surface, causing the second cap member to idle relative to the first cap member. On the other hand, when the second cap member is rotated in the closing direction, the engaging projection contacts the other side surface of the tooth portion, and when closing, the closing operation is usually performed while pressing the cap against the container body. As a result, the engagement between the engagement projection and the tooth portion is maintained, whereby the first cap member is also rotated with the rotation of the second cap member,
The stopper can be easily closed simply by rotating the second cap member.

In a preferred form of such a ratchet mechanism, a plurality of teeth are provided on a peripheral edge of an upper end of the first cap member at predetermined intervals in a circumferential direction, and an engaging projection is provided on the upper end of the second cap member. At a predetermined interval in the circumferential direction. Further, by setting the number of the engaging projections to be a divisor of the number of the teeth, each of the engaging projections can be engaged with the teeth almost at the same time. Twisting and twisting between the second cap member and the second cap member are prevented.

A second object of the present invention is to provide a cap attached to a mouth of a container body, wherein a cap provided on a top surface of the cap for breaking a seal formed in the mouth is provided with the projection. Can be achieved by removably attaching a cover covering the. That is, even if the contents adhere to the projections when the seal is pierced by the projections on the top surface of the cap, the contents are covered by attaching the cover, so that the infant may lick the contents adhered to the projections by mistake. Can be prevented.

[0017] Preferably, in the cap having the dual structure of the first and second cap members, a projection for breaking a seal formed at an opening of the container body is provided above the first cap member. The first and second objects can be achieved at the same time by making the upper end of the second cap member open and attaching a cover for covering the projection to the opening in a detachable manner.

If the cover is provided on the upper end of the second cap member via a hinge so as to be openable and closable, the cover can be prevented from being lost, and the cover can be easily opened and closed. Become.

[0019]

Preferred embodiments of the present invention will be described below with reference to the drawings.

The cap according to an embodiment of the present invention shown in FIGS. 1 to 8 is screwed to a mouth 3 of a container body 2 such as an aluminum tube for a hair dye. The first cap member 5 is provided with a threaded portion 4 to the first cap member 5, and the second cap member 6 has a cylindrical shape and covers the outer periphery of the first cap member 5. These cap members 5,
Reference numeral 6 denotes a synthetic resin molded product, which is formed by an appropriate molding means such as an injection molding method.

The outer peripheral surface of the first cap member 5 is gradually reduced in diameter toward the upper end, and has a substantially trapezoidal cylindrical shape as a whole. This first cap member 5
It is fitted into the second cap member 6 from below. The inner peripheral surface of the upper end portion of the second cap member 6 is reduced in diameter over substantially the entire circumference, and the reduced diameter portion 7 prevents the first cap member 5 from falling upward. A bulging portion 8 is also formed on the inner peripheral surface of the lower end portion of the second cap member 6 to prevent the first cap member 5 fitted therein from falling down. This bulge 8
The peripheral wall of the second cap member 6 has substantially the same diameter in the axial direction between the second cap member 6 and the reduced diameter portion 7 at the upper end inner periphery of the second cap member 6. The first cap member 5 can be relatively moved in the vertical direction.

As shown in FIG. 4, the screwing portion 4 has a first
Is formed in a lower opening shape at the lower portion of the cap member 5, and is screwed by rotating the screw portion 4 after externally fitting the screw portion 4 to the cylindrical mouth portion 3 of the container body 2 having an external thread formed on the outer periphery. Thus, a female screw is formed on the inner peripheral surface of the screwing portion 4.

On the upper part of the first cap member 5,
An upper opening-shaped concave portion 9 is formed, and in the concave portion 9, an upwardly projecting projection 11 is provided to break through a seal 10 provided at the mouth 3 of the container body 2 and sealing the mouth 3. Have been. The upper end of the second cap member 6 is opened, and the projection 11 can be exposed from the opening. The protrusion 11 has a tapered shape whose diameter gradually decreases along the distal end side, so that the seal 10 can be easily pierced. Further, by providing the projection 11 in the concave portion 9 having a diameter larger than the outer diameter of the mouth portion 3,
As shown in FIG. 3, when the cap 1 is turned upside down and the projection 11 is pierced into the seal 10 of the mouth 3, the mouth 3 is guided by the inner peripheral surface of the concave portion 9 and the piercing operation can be performed easily and reliably. It is configured as follows.

When the first and second cap members 5 and 6 rotate the second cap member 6 in the closing direction, the first cap member 5 is closed together with the second cap member 6. When the second cap member 6 is rotated in the opening direction, the second cap member 6 idles with respect to the first cap member 5 when the second cap member 6 is rotated in the opening direction.

The specific structure of the ratchet mechanism according to the present embodiment will be described. The mechanism comprises teeth formed on the upper end of the outer peripheral wall of the concave portion 9 (the outer peripheral edge of the upper end of the first cap member 5). And an engagement protrusion 13 provided in an upper end of the second cap member 6 so as to protrude inward. The protrusion 13 is engaged with the tooth portion 12 in the rotation direction. Is configured. Ten teeth 12 are provided on the periphery of the upper end of the first cap member at regular intervals in the circumferential direction. On the other hand, a pair (two) of the protrusions 13 is provided on the upper end of the second cap member 6 so as to face each other in the diametrical direction.

As shown in FIG. 4, the tooth portion 12 has a substantially right-angled triangular cross section. One side surface 14 in the circumferential direction is substantially vertical, and the other side surface 15 is on the tip side of the tooth portion 12. Therefore, it is formed in a tapered shape inclined in the opening direction, that is, counterclockwise in plan view. Other side 15
Is a surface on which the engaging projection 13 provided on the second cap member 6 abuts when the second cap member 6 is rotated in the opening direction, and the inclination direction is the tooth portion. 12 is inclined in the opening direction in accordance with the tip side. On the other hand, the one side surface 14 is a surface on which the engaging projection 13 comes into contact when the second cap member 6 is rotated in the closing direction.

According to the cap 1 of the present embodiment constituting the ratchet mechanism, when the second cap member 6 located on the outer peripheral side is rotated in the closing direction, the engaging projection provided on the second cap member 6 is provided. The part 13 abuts on the vertical surface 14 of the tooth part 12 of the first cap member 5. Therefore, by rotating the second cap member 6 in the closing direction while slightly pressing the container body 2 side, the engagement between the teeth 12 and the protrusions 13 is maintained, and the first cap member 6 and the first cap member 6 are joined together. The first cap member 5 is screwed into the mouth 3 by the interlocking rotation of the cap member 5.

On the other hand, when the second cap member 6 is rotated in the opening direction, the engagement projection 13 of the second cap member 6 is brought into contact with the tapered surface 15 of the tooth portion 12 of the first cap member 5. Abut The force in the rotational direction acting on the contact portion generates a component force for separating the first and second cap members 5 and 6 by the tapered surface 15, and causes the second cap member 6 to move to the first cap member 5. , The engaging projection 13 gets over the tooth portion 12 and the second cap member 6 moves to the first cap member 5.
Idling against. Therefore, even if the infant is mischievous, the first cap member 5 is prevented from being removed from the mouth 3.

In the cap 1 of the present embodiment, the second cap member 6 is used to make it easier for an adult to open the cap.
Further, an engagement piece 17 is provided which engages with a knurl 16 formed on the outer peripheral side surface of the first cap member by being pushed in from the outer peripheral side and elastically deformed inward. The engagement piece 17 is formed by a part of the peripheral wall of the second cap member 6, and the upper end side can be bent inwardly. On the inner surface of the engaging piece 17 on the bent front end side (that is, the upper end side in the illustrated example), a projection 18 meshing with the knurl 16 is provided. Is secured with the cap member 5 in the rotational direction.

Although the knurls 16 are provided over the entire circumference in the illustrated example, they may be provided at appropriate locations at intervals in the circumferential direction. Further, the engagement pieces 17 are provided in a pair (two) at diametrically opposed positions, but the number of the engagement pieces 17 is not particularly limited.

The upper end of the second cap member 6 can be opened and closed via a hinge 19 between a closed position where it is fitted into the upper end opening of the second cap member 6 and an open position where the upper end opening is opened. Cover 20 is provided. The cover 20 has a notch recess 21 into which the engagement protrusion 13 is fitted.
Are formed at positions corresponding to the protrusions 13, and the cover 2
The upper surface of the cover 20 and the upper surface of the protrusion 13 are flush with each other when the "0" is fitted into the upper end opening.

According to the cap 1 according to the above embodiment,
After the cover 20 is opened and the protrusion 11 is pushed into the mouth 3 to break through the seal 10 as shown in FIG.
By closing 0 and covering the projection 11, it is possible to prevent a baby from licking the contents attached to the projection 11. Further, the operation of screwing the cap 1 to the mouth portion 3 only needs to rotate the second cap member 6 in the closing direction. The cap 1 screwed into the mouth 3 is the second cap on the outer peripheral side.
It is not possible to remove the cap 1 by simply rotating the cap member 6 from the mouth 3, so that it is possible to prevent the infant from removing the cap 1 and accidentally ingesting the contents by mistake with food.

The present invention is not limited to the above-described embodiment, and the design can be changed as appropriate. For example, the cover 20 can be formed separately from the second cap member 6, or can be connected to the first cap member 5. Further, the teeth constituting the ratchet mechanism may be provided on the second cap member on the outer peripheral side, and the projections engaging with the teeth may be provided on the first cap member.

[0034]

According to the present invention, there is provided a first cap member provided with a threaded portion to the mouth of the container body, and a second cap member covering the outer periphery of the first cap member. When the second cap member is rotated in the closing direction by the first and second cap members, the first cap member is rotated in the closing direction together with the second cap member, and the second cap member is opened. A ratchet mechanism in which the second cap member idles with respect to the first cap member when rotated in the direction of the stopper is characterized in that the infant simply holds the second cap member. Even if it is grasped and rotated in the opening direction, the first cap member screwed to the mouth can be idled, and the infant removes the cap and swallows the contents, To the contents Ri it is possible to prevent soiling the clothes or room, etc., plugging operation well simply by rotating the second cap member in plugging direction, it is possible to easily plugging operation.

Further, by providing the second cap member with an engagement piece which is elastically deformed and engages with the first cap member in the rotational direction, it is possible to prevent the infant from opening the plug. In addition, when an adult performs the opening operation, the cap can be easily and reliably opened by paying attention to elastically deform the engaging piece.

In addition, by forming the engaging piece by a part of the peripheral wall of the second cap member, it is possible to improve the appearance and productability, and to attach the inner surface of the engaging piece from the outer peripheral side. By providing a projection that engages with a knurl formed on the peripheral side surface of the first cap member when the first cap member is pressed and deformed, the first cap member can be more reliably rotated by rotating the second cap member in the opening direction. The member can be rotated in the opening direction.

In addition, the ratchet mechanism is provided with a tooth portion which is formed on one of the first and second cap members so as to protrude in the up-down direction, and is provided on the other cap member and is rotationally connected to the tooth portion. And a side surface of the tooth portion with which the engagement convex portion comes into contact when the second cap member is rotated in the opening direction. , The first cap member and the second cap member are configured to be relatively movable in the vertical direction, thereby simplifying the structure, reducing the number of constituent members, and manufacturing. In addition, the above-described effect of preventing accidental ingestion of infants can be achieved while achieving simplification and cost reduction.

Further, a projection for breaking the seal formed at the mouth of the container body is provided on the upper portion of the first cap member, and the upper end of the second cap member is opened.
When the cover that covers the projection is detachably attached, even if the content adheres to the projection when the projection is pierced into the seal, the content is adhered to the projection by covering the projection by attaching the cover. Toddlers can lick
It is possible to prevent clothes and rooms from being stained by the contents.

The cover is provided at the upper end of the second cap member so as to be openable and closable via a hinge, so that the cover can be prevented from being lost and the opening and closing operation can be facilitated.

[Brief description of the drawings]

FIG. 1 shows a cap according to one embodiment of the present invention,
(A) is a plan view with the upper cover opened, (b) is a cross-sectional view taken along line AA of (a), (c) is a cross-sectional view taken along line BB of (a), and (d) is a bottom view. It is.

FIGS. 2A and 2B show the same cap, wherein FIG. 2A is a front view with an upper cover opened, and FIG. 2B is a left side view with the upper cover opened.

FIG. 3 is a vertical cross-sectional view illustrating an operation when breaking a seal formed at a mouth portion of the cap.

FIG. 4 shows a first cap member of the cap,
(A) is a plan view, and (b) is a cross-sectional view taken along line CC of (a).

FIG. 5 is a plan view showing a state where an upper cover of a second cap member of the cap is opened.

FIG. 6 is a sectional view taken along line CC of FIG. 5;

FIG. 7 is a sectional view taken along line DD of FIG. 5;

FIG. 8 is a bottom view of the second cap member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 2 Container main body 3 Mouth part 4 Screw part 5 First cap member 6 Second cap member 10 Seal 11 Projection 12 Tooth part 13 Engagement convex part 16 Knurl 17 Engagement piece 18 Projection 19 Hinge part 20 Cover

Claims (7)

[Claims] 1. A cap screwed to a mouth (3) of a container body (2), wherein the screw (4) is screwed to the mouth (3).
And a second cap member (6) for covering the outer periphery of the first cap member (5), and the first and second cap members (5) are provided. , 6), when the second cap member (6) is rotated in the closing direction, the first cap member (5) is rotated in the closing direction together with the second cap member (6), and the second cap member (6) is rotated in the closing direction. When the cap member (6) is rotated in the opening direction, the second cap member (6) is moved to the first position.
Wherein the ratchet mechanism is configured to idle with respect to the cap member (5). 2. The second cap member (6) is provided with an engagement piece (17) that is elastically deformed to engage with the first cap member (5) in a rotational direction. 2. The cap according to 1. 3. The engaging piece (17) is constituted by a part of the peripheral wall of the second cap member (6), and is formed by the engaging piece (1).
The inner surface of 7) has a first surface when pressed and deformed from the outer peripheral side.
The cap according to claim 2, wherein a projection (18) is provided for engaging with a knurl (16) formed on a peripheral side surface of the cap member (5). 4. A ratchet mechanism is provided on one of the first and second cap members (5), a tooth portion (12) protruding in the vertical direction, and the other cap member (6); An engagement projection (13) that engages with the tooth portion (12) in the rotational direction, and is engaged when the second cap member (6) is rotated in the plug opening direction. One side (15) of the tooth portion (12) with which the (13) abuts,
The first cap member (5) and the second cap member (5) are formed on a tapered surface that is inclined in the opening direction according to the tip side of the tooth portion (12).
The cap according to claim 1, wherein the cap member (6) is configured to be vertically movable relative to the cap member (6). 5. A plurality of teeth (12) are provided at predetermined intervals in a circumferential direction on a peripheral edge of an upper end portion of the first cap member (5), and the engaging projection (13) is provided on the second cap member (5). The cap according to claim 4, wherein a plurality of cap members are provided at an upper end portion of the cap member at predetermined intervals in a circumferential direction. 6. An upper part of the first cap member (5),
The seal (1) formed on the mouth (3) of the container body (2)
A projection (11) for breaking the projection (0) is provided, and an upper end of the second cap member (6) is opened. A cover (20) covering the projection (11) is detachably attached to the opening. The cap according to any one of claims 1 to 5, wherein the cap is provided. 7. The cap according to claim 6, wherein the cover (20) is provided at the upper end of the second cap member (6) so as to be openable and closable via a hinge portion (19).