JP3030822B2 - Cap structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a structure of a cap of a container in which, for example, sake, juice, milk, and the like are put.

BACKGROUND OF THE INVENTION

Conventionally, various types of container cap structures have been proposed, and as a typical example, a cap base attached to the container main body and an aluminum laminate material are heated so as to cover the opening of the cap base. The sealing means is formed by sealing and the heat-sealed aluminum laminate material, and then the outer lid is formed. However, the hermetically sealed structure constituted by heat sealing of such an aluminum laminate material is troublesome. That is, usually, the cap base body and the outer lid are formed by molding means such as injection, and the manufacturer of such a cap base body and the outer lid is different from the manufacturer of the aluminum laminate material. However, there is a problem that the heat sealing process of the aluminum laminate material is required, and the cost is increased accordingly.

DISCLOSURE OF THE INVENTION

An object of the present invention is to provide a cap structure that can be easily manufactured only in a plastic molding plant, does not require an aluminum laminate material, and has a closed structure. The object of the present invention is to provide a cap base attached to a container body, an inner lid integrally formed with the cap base via a thin portion so as to close an opening of the cap base, An outer lid having a hook portion to be hooked on the hooked portion of the lid, and an opening provided in the outer lid, wherein the hooked portion of the outer lid is a hooked portion of the inner lid. And the inner lid is coupled to the outer lid, and the combined body of the inner lid and the outer lid is moved in the opening direction of the outer lid to separate the inner lid from the cap base body at the thin portion. And a displacement of the inner lid separated from the cap base body can be confirmed from an opening provided in the outer lid. That is, an inner lid is formed integrally with the cap base so as to close the opening of the cap base, and the inner lid forms a closed structure without using an aluminum laminate material. Further, the inner lid integrally formed with the cap base can be easily molded by molding means such as injection. An outer lid having a hook portion that hooks on the hook portion of the inner lid is configured, and the hook portion of the outer lid is hooked on the hook portion of the inner lid, and the inner lid is closed. If the cap base is removed from the cap base in a state of being coupled to the outer lid, the opening of the cap base is in the open state. In addition, at this time, there is no need to remove the heat-sealed aluminum laminate material as in the past, nor is it necessary to place the outer lid on the table to remove the aluminum laminate material. The operation of opening the lid is extremely simple.

【Example】

1 to 4 show an embodiment of a cap structure according to the present invention. FIG. 1 is a schematic perspective view of a part in a state where a cap is attached to a container body, and FIG. FIG. 3 is a half-sectional view before use (before opening the cap), FIG. 3 is a half-sectional view before use (at the time of opening the cap), and FIG. 4 is a half-sectional view after use (after opening the cap). In each of the drawings, reference numeral 1 denotes a container main body in which, for example, sake, juice, milk, and the like are put, and reference numeral 2 denotes a cap attached to the container main body 1. Reference numeral 3 denotes a cap base attached to the container body 1, and reference numeral 4 denotes an inner lid integrally formed with the upper end surface of the cap base 3 so as to close the opening 3a of the cap base 3. The thickness of the connecting portion between the inner lid 4 and the cap base body 3 is thin, and when an upward force is applied to the inner lid 4 to some extent as shown in FIG. Remove from body 3. Further, the inner lid 4 is provided with a projection 4a for hooking at a peripheral portion thereof. In particular, a tapered portion 4b is formed on the convex portion 4a. Cap base body 3-inner lid 4 having the above structure
Can be easily molded by molding means such as injection. Reference numeral 5 denotes an outer lid having a convex portion 5a which is engaged with the convex portion 4a of the inner lid 4, and the outer lid 5 and the cap base body 3 have spiral irregularities on the joint surface thereof. . The outer lid 5 having such a structure can be easily molded by molding means such as injection. In the cap structure configured as described above, before use, as shown in FIGS. 1 and 2, the outer lid 5 is merely lightly stopped with respect to the cap base 3, The base body 3 and the inner lid 4 are in an integrated state, and the container body 1 is in a sealed state. At the time of use (opening), as shown in FIG.
Is slightly screwed into the cap base body 3 so that the projection 5a of the outer lid 5 is engaged with the projection 4a of the inner lid 4. Even in this state, the cap base body 3 and the inner lid 4 are in an integrated state, and the container body 1 is in a sealed state. After that, that is, after the projection 5a of the outer lid 5 is hooked on the projection 4a of the inner lid 4, the outer lid 5 is detached from the cap base body 3, so that the projection 4a of the inner lid 4 is Since the inner lid 4 is hung on the convex portion 5a, an upward force is also applied to the inner lid 4, and as shown in FIG. The connected body of the lid 4 and the outer lid 5 is separated from the cap base body 3 and is in an open state. Also, as shown in FIG. 4, after the cap is opened, the inner lid 4 and the outer lid 5 are integrated with each other, and a concave portion (as in the state before opening in FIG. 2) is provided between them. Since the opening 6 of the outer lid 5 is eliminated, it can be seen at a glance whether it is before opening or after opening. In other words, in the case of heat-sealed aluminum laminate, it is unknown whether it is before or after opening unless the outer lid is opened and the heat-sealing condition of the aluminum laminate is checked. In contrast, in the case of the present invention, it can be seen at a glance. Further, when heat sealing is performed with an aluminum laminate material, there is a concern about contamination by the used adhesive, but the present invention does not.

【effect】

The cap structure according to the present invention includes a cap base attached to the container body, an inner lid integrally formed with the cap base via a thin portion so as to close an opening of the cap base, An outer lid having a hook portion to be hooked on the hook portion of the inner lid, and an opening provided in the outer lid, wherein the hook portion of the outer lid is hooked by the inner lid. The inner lid is connected to the outer lid by being hooked on the outer lid, and the inner lid is moved from the cap base body at the thin portion by operating the combined body of the inner lid and the outer lid in the opening direction of the outer lid. While being configured to be separated, the displacement of the inner lid separated from the cap base can be confirmed from the opening provided in the outer lid, so that the cap base is closed so as to close the opening of the cap base. On the other hand, the inner lid is configured integrally,
The inner lid forms a hermetically sealed structure without using an aluminum laminate, and the inner lid, which is integrally formed with such a cap base, can be easily molded by molding means such as injection. Since the outer lid having the latching portion that latches to the latching portion is configured, the latching portion of the outer lid is latched to the latched portion of the inner lid, and the inner lid is coupled to the outer lid. If it is removed from the cap base body, the opening of the cap base body will be in the open state, and at this time, there is no need to remove the heat-sealed aluminum laminate material as in the past, There is no need to put the outer lid on the table to peel off the aluminum laminate material, and it is extremely easy to open the lid, and when heat sealing is performed with aluminum laminate material While there is a concern about contamination due to the used adhesive, there is no such concern in the present invention, and it is possible to check at a glance whether or not the stopper has been opened, and at a very low cost. It has features such as being able to be provided.

[Brief description of the drawings]

1 to 4 show an embodiment of a cap structure according to the present invention. FIG. 1 is a schematic perspective view of a part in a state where a cap is attached to a container body, and FIG. FIG. 3 is a half-sectional view before use (before opening the cap), FIG. 3 is a half-sectional view before use (at the time of opening the cap), and FIG. 4 is a half-sectional view after use (after opening the cap). DESCRIPTION OF SYMBOLS 1 ... container main body, 2 ... cap, 3 ... cap base body, 3a ... opening part, 4 ... inner lid, 4a ... convex part, 4b ... taper part, 5 ... outer lid, 5a ... ... Convex portions, 6... Concave portions.

Claims (1)

(57) [Claims] A cap base attached to the container body; an inner lid integrally formed with the cap base via a thin portion so as to close an opening of the cap base; An outer cover provided with a hook portion to be hooked on the hook portion; and an opening provided on the outer cover, wherein the hook portion of the outer cover is hooked on the hook portion of the inner lid. The inner lid is separated from the cap base body at the thin portion by stopping the inner lid and connecting the inner lid to the outer lid, and operating the combined body of the inner lid and the outer lid in the opening direction of the outer lid. In addition, the cap structure is configured such that the displacement of the inner lid separated from the cap base body can be confirmed from an opening provided in the outer lid.