JPS61127452A - Combination of vessel having child-resistant characteristic and cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a combination of a container and a lid, and more particularly, to a combination of a container and a lid, and more particularly, to a combination of a container and a lid, and more particularly, to a combination of a container and a lid, which have child-resistant properties (requiring a special operation when opening the container, and therefore requiring a special operation to be understood). It relates to a combination of a container and a lid that has characteristics that make it impossible for young children to open the lid.

<Prior art> When packaging pharmaceuticals, etc., a combination of a container and a lid with child-resistant properties is often used to avoid the risk of children accidentally taking the product.
A number of combinations of containers and lids with child-resistant characteristics have been proposed and put into practical use.

However, conventional container-lid combinations with child-resistant properties use (0) fairly complex lids that are constructed from multiple parts including an inner lid and an outer lid, and therefore are expensive to manufacture; (b) Since the lid includes an inner lid and an outer lid surrounding it, the outside diameter of the lid is considerably larger than the outside diameter of the mouth and neck of the container, which is undesirable from the viewpoint of appearance, etc. There are other problems and drawbacks.

In order to solve these problems and drawbacks, Japanese Utility Model Publication No. 56-17330 discloses that in a container, a locking ratchet is formed on the outer peripheral surface of the mouth and neck of the container together with a male thread located below the thread. In the lid, in addition to a top wall and a skirt wall that hangs down from the top wall and has a female thread formed on the inner circumferential surface, the lid is connected to the lower end of the skirt wall through a flexible connecting piece, and A child resistant ring is provided that can be elastically displaced upwardly with respect to the skirt wall by elastic deformation of the connecting piece, and a locked ratchet that cooperates with the locking ratchet is provided on the inner peripheral surface of the child resistant ring. The combinations formed are disclosed.

However, such a combination is still not fully satisfactory and has the following problems and drawbacks that must be solved. In the above combination, in order to remove the lid from the mouth and neck of the container and open the container, the child-resistant ring is elastically moved upward to release the lock between the locking ratchet and the locked ratchet. It is necessary to rotate the lid in the opening direction while maintaining this state, and by requiring such a special operation, it is attempted to ensure child-resistant characteristics. However, when trying to remove the lid from the mouth and neck of a container, it is recognized that human instinct is to apply force to pull the lid upward.
It is introduced that young children can also rotate a in the e direction and pull it upward. When all young children perform such instinctive operations, their fingers often accidentally become engaged not only with the skirt wall of the lid but also with the child-resistant ring extending below it; When the child-resistant ring is pulled upward, the child-resistant ring is elastically displaced upward, and the locking ratchet and the locked ratchet are disengaged. Therefore, the child-resistant property is damaged and the container is damaged. The lid is detached from the mouth and neck.

<Object of the Invention> The present invention was developed in view of the above-mentioned facts, and its main purpose is to enable the blue to be constructed from a single letter, thus making the manufacturing cost relatively low and providing a desirable appearance. It is an object of the present invention to provide a new and excellent combination of a container and a lid, which can exhibit the characteristics of the container and which can sufficiently reliably ensure child-resistant properties.

<Summary of the Invention> According to the present invention, as a combination that achieves the above object, there is provided a container having a neck portion having a male thread formed on the outer peripheral surface;
A child-resistant property comprising a top wall and a lid having a cylindrical start wall hanging from the top wall, and a female thread cooperating with the male thread formed on the inner peripheral surface of the skirt wall. In the combination having: In the container, a locking protrusion protrudes downward from the rear extension of the male thread or a protrusion extending obliquely in the extending direction of the male thread, on the outer peripheral surface of the mouth and neck. The lid is provided with a child-resistant ring connected to the lower end of the skirt wall, and the child-resistant ring has an inner peripheral surface provided with the locking protrusion of the container. A locking protrusion is formed to cooperate with the child resistant ring, and at least a region of the child resistant ring in which the locking protrusion is formed is elastically displaceable downward with respect to the skirt wall. At least one of the front side of the locking protrusion and the front side of the locked protrusion has a relatively gentle slope, and the rear side of the locking protrusion and the rear side of the locked protrusion have a relatively gentle slope. A combination is provided, characterized in that at least one of the two has a relatively steep slope.

In such a combination of the present invention, in order to remove the lid from the mouth and neck of the container and open the container, the child-resistant ring is elastically displaced downward to prevent the engagement between the locking projection and the locked projection. It is necessary to release the lock and rotate the lid in the opening direction while maintaining this state W14. The operation of displacing the child resistant ring downward, that is, in the direction of pressing it against the container, is contrary to the human instinctive operation when opening a package. properties are ensured.

Configuration of a Preferred Specific Example> A specific example of a combination constructed according to the present invention will be described below with reference to all the accompanying drawings.

One embodiment of a combination constructed in accordance with the invention comprises a container with a neck as shown in FIG. 1 and a lid as shown in FIG.

Referring to FIG. 1, the upper end of the illustrated container, which may be formed from glass or a suitable synthetic resin, includes:
A generally cylindrical opening W4 portion indicated by the bar number 2 is provided. A male thread 4 is formed on the outer peripheral surface of the mouth and neck portion 2. From the point of view of the function of cooperation with the female thread of the lid, which will be described later, this male thread 4 is indicated by the code number i″T.
:P: It may be noted that in the illustrated embodiment constructed in accordance with the present invention, the male thread 4 extends rearwardly beyond the location indicated by the numeral A. A locking protrusion 6 is formed in the extension part 4& of the male thread 4 and protrudes downward therefrom. The front side of this locking protrusion 6 has a relatively gentle slope 8, and the rear side has a relatively steep slope 10.
has. The inclination angle α1 of the inclined surface 8 with respect to the extension s4a of the male thread 4 is preferably about 10 to 30 degrees, and the inclination angle β1 of the inclined surface 10 is preferably about 80 to 100 degrees. The illustrated lid, generally designated by the numeral 12, which can be integrally molded from a suitable synthetic resin, includes a circular top wall 14 and a top wall 14.
It has a cylindrical skirt wall 16 depending from the periphery.

A female thread 18 is formed on the inner peripheral surface of the skirt wall 16. 1i12 is further provided with a child-resistant ring 22 connected to the lower end of the skirt wall 16 by a plurality (for example, four) of flexible connection pieces 20 spaced apart in the circumferential direction. ing. Connection piece 2
0 preferably extends obliquely in the direction in which the female thread 18 extends. A locking protrusion 24 is formed on the inner circumferential surface of the child resistant ring 22 and is located at the extension of the female thread 18 . The front side of this locked projection 24 has a relatively gentle slope 26, and the rear side has a relatively sharp slope 28. The inclination angle α2 of the inclined surface 26 with respect to the extension line of the female thread 18 should be about 10 to 30 degrees,
The inclination angle β2 of the inclined surface 28 is preferably about 80 to 100 degrees. Preferably, a plurality of (for example, two) projecting pieces 30 are formed on the outer circumferential surface of the child-resistant ring 22 and project radially outward at intervals of ell in the circumferential direction.

Effects of Preferred Specific Examples> In order to close the mouth and neck part 2 by attaching the lid 12 shown in FIG. 2 to the mouth and neck part 2 of the container shown in FIG.
The lid 12 is fitted onto the lid 12, and the lid 12 is rotated in the closing direction, that is, in the clockwise direction when viewed from above in FIG.
The female thread 18 is screwed onto the female thread 4 of the mouth and neck part 2. At this time, the locked protrusion 24 of the lid 12 moves along the female thread 4 of the mouth and neck part 2, and then rides over the locking protrusion 6 at the extension 4a of the male thread 4. , is positioned downstream of the locking projection 6, as shown by the two-dot chain line 24A in FIG.

At least one of the front side of the locking protrusion 6 and the front side of the locked protrusion 24 (in the illustrated case, both sides) are formed with relatively gentle slopes 8 and 26, so that the locked protrusion 24 can be easily moved. It is possible to get over the locking protrusion 6.

Next, the operation for removing the lid 12 from the mouth and neck portion 2 of the container will be explained. Even if the lid 12 is not simply rotated in the opening direction, that is, in the counterclockwise direction when viewed from above in FIG.
As shown by a two-dot chain line 24A in the figure, the locking projection 24 is positioned on the rear side of the locking projection 6, and the locking projection 24 is located on the rear side of the locking projection 6.
Since the rear inclined surface 28 of 4 is brought into contact with the rear inclined surface 10 of the locking projection 6, rotation of the lid 12 in the opening direction is prevented. Since at least one of the sloped surface 28 of the locking projection 6 and the sloped surface 10 of the locked projection 28, and in the illustrated case both are relatively steep, rotation of the lid 12 in the opening direction is reliably prevented. Ru. When removing the lid 12 from the mouth and neck part 2 of the container to open it, first remove the child-resistant ring 2.
Place your finger on the protruding piece 30 formed on the outer circumferential surface of 2 and press it downward. In this way, as shown by the two-dot chain line in FIG. 2, the flexible connection piece 20 extending at an angle is elastically deformed and straightened, and thus the entire child resistant ring 22 is elastically deformed. It is rotated slightly in the opening direction and is also displaced downward. Thus,
As shown by the two-dot chain line 24B in FIG.
8 is displaced downward with respect to the locking projection 6 and rotates slightly in the opening direction, and the locking between the locked projection 28 and the locking projection 6 is released. When the lid 12 is rotated in the opening direction while maintaining this state, the female thread 18 of the lid 12 and the male thread 4 of the neck part 2
The screw engagement with the lid 12 is released, and the lid 12 is thus removed from the mouth and neck portion 2.

The necessary operation when removing the lid 12 from the mouth and neck region 2, that is, the operation of displacing the child resistant ring 221 downward, is an operation that goes against the human instinctive operation when opening the package, and therefore, There is no possibility that the child will accidentally displace the child resistant ring 22 downwards, and thus the child resistant characteristics can be sufficiently ensured.

Modifications and Modifications> Although a specific example of the combination configured according to the present invention has been described in detail with reference to FIGS. 1 and 2, the present invention is not limited to such specific example. It goes without saying that various changes and modifications can be made without departing from the scope of the invention.

For example, in the mouth and neck part 2 of the container shown in FIG.
The male thread 4 is extended rearward and associated with the extension 4a of the male thread 4 to form a locking protrusion 6; however, if desired, the male thread 4 can be extended as shown in FIG. Separately from the thread 4, a protrusion 32 is formed that extends obliquely in the extending direction of the male thread 4,
It is also possible to form a locking protrusion 6 projecting downward from the protrusion 32. Instead of locating the protrusion 32 on the extension line of the male thread 4 as shown in FIG. 3, it can also be positioned at a position displaced upward or downward from the position shown in FIG. In this case, it is necessary that the locked protrusion 24 formed on the inner circumferential surface of the child resistant ring 22 is also located at a position displaced upward or downward from the position on the extension line of the female thread 18).

Note that the lid 12 shown in FIG. 2 is constructed so that the entire child-resistant ring 22 can be elastically displaced downward by elastic deformation of the flexible connecting piece 20. If so, instead of this, for example, by making the portion between the connecting pieces 20 of the child resistant ring 22 sufficiently flexible, and by elastically deforming the bent portion downward in an arc shape, the child resistant ring 2
It may also be configured such that the area in which the locked protrusion 24 in 2 is formed can be partially displaced downward.

<Effects of the Invention> As described above in detail, the present invention provides that the lid 12
An extremely excellent container in practical use, which can be constructed from a solid material, which can therefore reduce manufacturing costs and exhibit a desirable appearance, and can also ensure child-resistant properties with sufficient reliability. and lid combinations are provided.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the neck and neck of a container in a specific example of a combination constructed in accordance with the present invention. FIG. 2 is a sectional view showing a lid in a specific example of a combination constructed according to the present invention. FIG. 3 is a side view showing a modification of the mouth and neck of the container. 2... Container neck and neck 4... Male thread 4m... Extended portion of male thread 6... Locking protrusion 12... Lid 14... Top wall 16... Nuka-1 Wall 18...Female thread 20...Connection piece 22...Child resistant ring 24...Locked protrusion 32...Protrusion Patent applicant Japan Crown Cork Co., Ltd.□ 9
. Representative Patent Attorney Jun Ono 'L, 4L'...
,-. Figure 2 Todomaya Figure 1

Claims (1)

[Scope of Claims] 1. A container equipped with a neck portion having a male thread formed on its outer peripheral surface, a top wall, and a cylindrical skirt wall hanging from the top wall, and an inner peripheral surface of the skirt wall. and a lid having a female thread that cooperates with the male thread; in the combination having child-resistant properties; A locking protrusion is formed that projects downward from the rear extension or a protrusion that extends obliquely in the direction in which the male thread extends, and in the lid, a child resistant member is connected to the lower end of the skirt wall. A ring is provided, and a locked protrusion that cooperates with the locking protrusion of the container is formed on the inner peripheral surface of the child-resistant ring, and at least the locked protrusion of the child-resistant ring is formed. The region in which the locking projection is formed is made to be elastically displaceable downward with respect to the skirt wall, and at least one of the front side of the locking projection and the front side of the locked projection is relatively It has a gentle slope, and at least one of the rear side of the locking protrusion and the rear side of the locked protrusion has a relatively steep slope.
A combination characterized by: 2. In the lid, the child-resistant ring is connected to the lower end of the skirt wall by a plurality of circumferentially spaced flexible connection pieces, and each of the connection pieces has elasticity. 2. A combination according to claim 1, wherein the entire child resistant ring is elastically displaceable downwardly relative to the skirt wall by deformation. 3. The combination according to claim 2, wherein each of the connecting pieces extends obliquely in the direction in which the female thread extends. 4. In the lid, a plurality of projecting pieces projecting radially outward at intervals in the circumferential direction are formed on the outer peripheral surface of the child resistant ring, A combination according to any of paragraph 3.