JP2018034851A - Safety cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety cap that can be prevented from being unexpectedly opened, by making it difficult for an infant child to open, without greatly changing usability as the safety cap.SOLUTION: A safety cap B is mounted on a mouth cylinder part 4 of a container main body A. The safety cap B comprises an inner cap C to be screwed to the mouth cylinder part 4 of the container main body A and an outer cap D which covers the outside of the inner cap C and is attached rotatably to the inner cap C. The outer cap D has at least one window part 27 that allows a finger H to contact the outside of the inner cap C.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a safety cap that is attached to a mouth tube portion of a container body, and more particularly to a safety cap that can prevent a lid from being opened due to mischief or the like of an infant.

Conventionally, there has been known a safety cap that is used to close a container main body that contains contents by screwing and has a mechanism that prevents an unexpected opening due to an infant's mischief or the like.
This type of safety cap has a double structure of an inner cap and an outer cap. When the lid is opened, turning the outer cap does not rotate the inner cap that is screwed with the container body. A safety screw cap that can be opened by turning while pushing is known (for example, see Patent Document 1).

  In addition, the cap has a side wall that can be elastically deformed inward and outward in the radial direction, and the cap side tooth portion engaged with the protrusion on the container body side by rotating the cap side wall while pushing the cap. A so-called side push type safety cap that can release the engagement and open the cap is also known (see, for example, Patent Document 2).

No. 58-956 microfilm Japanese Patent Laid-Open No. 51-24382

However, although the safety screw cap described in Patent Document 1 can prevent an unexpected lid opening due to a child's mischief or the like, it is necessary to turn the outer cap while pushing the outer cap into the container body side when opening the lid. There is a problem that an extra force is required to open the lid.
Further, the safety cap described in Patent Document 2 does not require extra force unlike the safety cap described in Patent Document 1, but the container body and the cap are disengaged simply by pressing the side wall of the cap, and the lid is opened. Therefore, there is a problem that it is relatively easy to open the lid, and there is a possibility that an infant may accidentally swallow the lid by opening the safety cap.

  An object of the present invention is to provide a safety cap that makes it difficult for an infant to open a lid and prevents an unexpected lid opening without greatly changing the usability as a safety cap, and to solve the above problems. With the goal.

  In order to solve the above-described problems, the present invention provides a safety cap that is attached to a mouth tube portion of a container body as a safety cap, and the safety cap includes an inner cap screwed into the mouth tube portion of the container body An outer cap that covers the outer side of the inner cap and is rotatably attached to the inner cap, and the outer cap has at least one window portion that can contact a finger on the outer side of the inner cap. The configuration is adopted.

  As a specific embodiment of the safety cap, the inner cap includes a first top wall, a first side peripheral wall suspended from the periphery of the first top wall, and an outer cylindrical wall formed outside the first side peripheral wall. And the outer cap has a second top wall and a second side peripheral wall depending from the periphery of the second top wall, and the window portion is at least on the second side peripheral wall so as to expose the outer cylindrical wall. The container main body has a rising wall formed on the shoulder, and the second side peripheral wall has an inner peripheral lower end that contacts the rising wall. The second top wall has an inner cylindrical wall that hangs down from the lower surface and surrounds the outer periphery of the first side peripheral wall, and the first side peripheral wall and the inner cylindrical wall are detached. A structure characterized by having a stop mechanism is adopted.

Furthermore, as another embodiment of the inner cap and the outer cap, the inner cap has a ratchet tooth provided on the upper surface of the first top wall, and the outer cap has a ratchet claw provided on the lower surface of the second top wall. The outer cap engages with the inner cap when the lid is rotated, and the outer cap is idle when the lid is rotated. A structure characterized by having a ratchet mechanism that meshes and rotates freely when the lid is rotated is adopted.
Furthermore, as a specific embodiment of the window portion, a configuration is adopted in which the window portion has two locations at positions opposed to the outer cap.

By adopting the above configuration, the safety cap of the present invention can be freely used in the opening direction and the closing direction by directly grasping the outside of the inner cap with a finger from the window portion formed at the position opposed to the outer cap. Can be turned to.
Further, the container body has a rising wall formed on the shoulder portion, and the side peripheral wall of the outer cap has an inner peripheral lower end portion that comes into contact with the rising wall, so that the side peripheral wall of the outer cap is strongly inward. Even if it pushes, the inner peripheral lower end part of a side peripheral wall can interfere with a raising wall, and can prevent the influence on an inner cap.

  Further, the outer cap has a ratchet mechanism that meshes with the inner cap when the lid is rotated, and rotates freely when the lid is rotated. However, when the lid is opened, even if the side wall of the outer cap is turned, the ratchet mechanism only rotates the outer cap, and the inner cap cannot be opened because the rotational force is not transmitted to the inner cap. .

It is a figure which shows the safety cap which is the Example of this invention with which the tube container main body was mounted | worn, (a) is X1-X1 arrow sectional drawing seen from the front, (b) is Y1- seen from the top. It is Y1 arrow sectional drawing. It is a figure which shows the safety cap which is an Example of this invention, (a) is the half sectional view seen from the right, (b) is the half sectional view seen from the front. It is a figure which shows the state which opens the safety cap which is an Example of this invention from a tube container main body, (a) is a X1-X1 arrow sectional drawing which shows a mode that it opens normally, (b) is It is X2-X2 arrow sectional drawing seen from the right which shows a mode that an outer cap rotates idly.

  Next, an embodiment in which the safety cap of the present invention is embodied as a cap of a tube container body that uses the cream-like contents by squeezing out will be described with reference to the drawings showing examples.

In FIG. 1, A is a synthetic resin tube container main body, B is a synthetic resin safety cap attached to the tube container main body A, and the safety cap B includes an inner cap C and an outer cap that covers the inner cap C. D.
In the following description, the upper direction is “up”, the lower direction is “lower”, and the lower direction is “front” in FIG. 1 (b). The direction is “back”, the right direction is “right”, and the left direction is “left”.

The tube container main body A is a cylindrical body 1 that is elastically squeezable, and a shoulder that is joined to the upper end of the body 1 and gradually reduced in diameter from the outer diameter of the body 1 to form a cone. 2 and a cylindrical mouth tube portion 4 which is erected integrally from the reduced diameter upper portion of the shoulder portion 2 and has a spout 3 formed therein.
A step-like rising wall 5 is formed at the outer end portion of the shoulder portion 2, and a male screw 6 is screwed around the outer periphery of the mouth tube portion 4.

As shown in FIGS. 1 and 2, the inner cap C includes a first top wall 10, a cylindrical first side wall 11 suspended from the periphery of the first top wall 10, and a lower end of the first side wall 11. An annular flange wall 12 extending outward from the portion and a cylindrical outer cylinder wall 13 erected in the vertical direction from the periphery of the flange wall 12 are provided.
As shown in FIG. 1B, four ratchet teeth 14 are provided on the circumference of the first top wall 10 at equal intervals on the circumference.
In this embodiment, four ratchet teeth 14 are provided, but any number of ratchet teeth 14 may be used as long as a plurality of ratchet teeth 14 are provided.

On the inner periphery of the first side peripheral wall 11, a female screw 15 that is screwed into a male screw 6 that is screwed into the mouth tube portion 4 of the tube container main body A is screwed.
As shown in FIG. 1B, three retaining protrusions 16 are provided at equal intervals on the outer periphery of the first side peripheral wall 11, and the inner edge of the flange wall 12 corresponds to the retaining protrusion 16. Thus, three molding holes 12a are formed.
In the present embodiment, the retaining protrusion 16 and the molding hole 12a are provided at three locations, but any number may be used as long as a plurality of locations are provided.

On the outer periphery of the outer cylindrical wall 13, knurls 17 having a bowl shape in the vertical direction are formed at equal intervals in the circumferential direction, and the knurls 17 function as anti-slip when the outer cylindrical wall 13 is turned. The outer periphery of the outer cylinder wall 13 is not limited to the knurling 17 as long as it functions as an anti-slip material. For example, the outer cylindrical wall 13 may have a surface shape with an infinite number of hemispherical protrusions to increase the friction coefficient. Absent.
Further, an annular projecting portion 18 that contacts a second side peripheral wall 21 of the outer cap D, which will be described later, is formed at the lower end portion of the outer cylindrical wall 13.
In this embodiment, the cross-sectional shape of the knurl 17 has a bowl shape, but it may be triangular or trapezoidal. Further, the circumferential interval and the vertical length of the knurls 17 can be set as appropriate.

As shown in FIGS. 1 and 2, the outer cap D includes a second top wall 20, a cylindrical second side peripheral wall 21 depending from the periphery of the second top wall 20, and the first side of the inner cap C. It is comprised from the inner cylinder wall 22 suspended from the lower surface of the 2nd top wall 20 so that the outer periphery of the surrounding wall 11 may be covered.
On the lower surface of the second top wall 20, as shown in FIG. 1B, ratchet claws 23 that mesh with the ratchet teeth 14 provided on the upper surface of the first top wall 10 of the inner cap C are equidistantly arranged on the circumference. Four are provided.
In this embodiment, four ratchet claws 23 are provided. However, as long as a plurality of ratchet claws 23 are provided according to the number of ratchet teeth 14, the number of ratchet claws 23 may be any number.

On the outer lower surface of the second top wall 20, a holding portion 24 is formed that is annularly recessed and comes into contact with the distal end portion 13 a of the outer cylindrical wall 13.
A fitting recess 25 is formed below the inner periphery of the inner cylinder wall 22 to be fitted with the retaining protrusion 16 of the inner cap C. An engagement protrusion 26 is formed below the fitting recess 25. Yes.
Two window portions 27 are opened at opposite positions on the second side peripheral wall 21, and the knurls 17 of the outer cylindrical wall 13 are exposed through the window portions 27.
In the present embodiment, two window portions 27 are provided at positions opposed to the second side peripheral wall 21. However, it is sufficient that at least one window portion 27 is provided, and any size or shape can be used as long as the fingertip can be pushed in. Absent.
In particular, the shape of the window 27 is preferably a square shape or a circular shape, and may be a vertically long shape or a horizontally long shape.
As a combination of the window portions 27, when providing a plurality of locations, it is preferable to provide the same shape at the facing position, but it can be appropriately set to a different shape or a different position (height). If not, it is possible to provide three or more locations.
Furthermore, the 2nd side surrounding wall 21 has the inner peripheral lower end part 21a which contact | abuts the raising wall 5 of the tube container main body A below.

Next, usage modes and operational effects of the present embodiment will be described with reference to the drawings.
First, as shown in FIG. 1 (a), the tube container main body A of the present embodiment has a lower end of a cylindrical body 1 opened as a filling port (not shown), and an upper end of the body 1; The shoulder portion 2 and the mouth tube portion 4 are produced by joining the integrally molded parts.
Furthermore, in the safety cap B of the present embodiment, the inner cap C and the outer cap D are separately manufactured by injection molding or the like, and when the outer cap D is put on the inner cap C as shown in FIG. The engaging protrusion 26 formed on the inner periphery of the lower end of the inner cylindrical wall 22 of the outer cap D gets over the retaining protrusion 16 of the inner cap C, and the retaining protrusion 16 is fitted in the fitting recess 25. The assembly work of the safety cap B is completed.

Next, in order to attach the safety cap B to the mouth tube part 4 of the tube container main body A before filling the contents, the finger is put on the outer periphery of the second side peripheral wall 21 of the outer cap D and rotated in the closing direction. Then, as shown in FIG. 1A, the ratchet claw 23 of the outer cap D meshes with the ratchet teeth 14 of the inner cap C, and is a female screw screwed to the inner periphery of the first side peripheral wall 11 of the inner cap C. 15 and a male screw 6 screwed on the outer periphery of the mouth tube portion 4 of the tube container body A are screwed together to close the lid, and the mounting operation is completed.
After the safety cap B is screwed onto the tube container main body A, the contents are filled from the filling port of the barrel part 1 of the tube container main body A, and after the contents are filled, the filling port of the trunk part 1 is sealed. The tube container body A filled with the contents is completed.

Next, in order to use the tube container main body A filled with the contents, first, as shown in FIG. 3A, the window portion 27 opened at the position facing the second side peripheral wall 21 of the outer cap D. The finger H is put into the knurl, and the knurl 17 formed on the outer periphery of the outer cylinder wall 13 of the inner cap C is grasped and turned in the direction of opening.
At this time, the outer cylindrical wall 13 of the inner cap C is pressed inward, but the distal end portion 13a of the outer cylindrical wall 13 is held by the holding portion 24 of the outer cap D. Cap D can be turned together.
Then, the female screw 15 screwed on the inner periphery of the first side peripheral wall 11 of the inner cap C rotates together with the outer cylindrical wall 13 to open the safety cap B from the mouth tube portion 4 of the tube container main body A. Furthermore, the content accommodated in the tube container main body A can be poured out from the spout 3 by squeezing the trunk | drum 1. FIG.

  Further, the infant tries to open the safety cap B from the mouth tube portion 4 of the tube container body A, and the second side peripheral wall 21 of the outer cap D is grasped with the finger H as shown in FIG. When rotating in the direction, the outer cap D has the ratchet claw 23 provided on the lower surface of the second top wall 20 riding on the ratchet teeth 14 provided on the upper surface of the first top wall 10 of the inner cap C. The inner cap C cannot be rotated and the safety cap B cannot be opened simply by idling while moving up and down around the inner cap C.

After using the tube container main body A, when the finger is placed on the outer periphery of the second side peripheral wall 21 of the outer cap D and rotated in the closing direction, as in the above-described operation of mounting the safety cap B, the ratchet claw of the outer cap D 23 is meshed with the ratchet teeth 14 of the inner cap C, and is screwed on the outer periphery of the female tube 15 screwed on the inner periphery of the first side peripheral wall 11 of the inner cap C and the mouth tube portion 4 of the tube container main body A. The male screw 6 is screwed and closed, and the inside of the spout 3 can be sealed.
In this embodiment, the container main body using the safety cap B is the tube container main body A. However, the container main body is not limited to the tube container main body, and is a type in which the cap is screwed into the mouth tube portion and closed. Any container body may be used as long as it is a container body.

The safety cap of the present invention can be freely rotated in the opening direction and the closing direction by directly gripping the outside of the inner cap with a finger from a window portion formed at a position opposed to the outer cap during use. It is difficult to open the lid, and it is possible to prevent an unexpected lid opening.
It is particularly suitable as a safety cap for tube container bodies filled with cream-like contents.

A Tube container body (container body)
B Safety cap C Inner cap D Outer cap H Finger 1 Body 2 Shoulder 3 Outlet 4 Mouth part 5 Rising wall 6 Male screw 10 First top wall 11 First side peripheral wall 12 Flange wall 12a Molding hole 13 Outside Cylindrical wall 13a Tip 14 Ratchet teeth (Ratchet mechanism)
15 Female thread 16 Retaining protrusion (Retaining mechanism)
17 Knurl 18 Overhang 20 Second top wall 21 Second side peripheral wall 21a Inner peripheral lower end 22 Inner cylinder wall 23 Ratchet claw (Ratchet mechanism)
24 holding part 25 fitting recess (prevention mechanism)
26 engaging projection 27 window

Claims (7)

A safety cap attached to the mouth tube portion of the container body,
The safety cap includes an inner cap that is screwed into the mouth tube portion of the container body, an outer cap that covers the outside of the inner cap and is rotatably attached to the inner cap.
The outer cap has at least one window portion that can contact a finger on the outer side of the inner cap. The inner cap has a first top wall, a first side peripheral wall suspended from the periphery of the first top wall, and an outer cylindrical wall formed on the outside of the first side peripheral wall,
The outer cap has a second top wall and a second side peripheral wall depending from the periphery of the second top wall,
2. The safety cap according to claim 1, wherein the window portion is formed in at least one place on the second side peripheral wall so as to expose the outer cylinder wall. The container body has a rising wall formed on the shoulder,
The safety cap according to claim 2, wherein the second side peripheral wall has an inner peripheral lower end portion that comes into contact with the rising wall. The second top wall is suspended from the lower surface and has an inner cylindrical wall surrounding the outer periphery of the first side peripheral wall,
The safety cap according to claim 2 or 3, wherein the first side peripheral wall and the inner cylindrical wall have a retaining mechanism. The inner cap has ratchet teeth provided on the upper surface of the first top wall,
The outer cap has a ratchet claw provided on the lower surface of the second top wall,
The safety cap according to any one of claims 2 to 4, wherein the outer cap meshes with the inner cap when the lid is rotated, and rotates freely when the lid is rotated.   The safety cap according to any one of claims 1 to 4, wherein the outer cap has a ratchet mechanism that meshes with the inner cap when the lid is rotated and rotates freely when the lid is rotated.   The safety cap according to any one of claims 1 to 6, wherein two window portions are provided at positions opposed to the outer cap.

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