JPH0457187B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a pill-proofing method that enables it to be confirmed whether a container containing sauce etc. is unopened or opened. The present invention relates to a method of manufacturing a member cap.

[Conventional technology]

As a cap for containers filled with sauce etc.
For the purpose of guaranteeing the freshness and safety of the contents, a cap with a pill-proof member is known that allows confirmation of whether the container is unopened or opened.

Conventionally, as this type of cap with a pilfer-proof member, a cap with a pilfer-proof member A as shown in FIG. 9 has been known.

In FIG. 9, reference numeral 1 denotes a cap main body screwed onto the neck 2a of the container 2, 3 an inner plug fitted into the top end of the neck 2a, and 4 a gap between the lower end of the cap main body 1 and the neck 2a. This is a pilfer-proof member inserted into the The cap body 1 has an annular protrusion 1b formed on the inner surface of the top plate 1a, and a groove 1c formed on the inner surface of the lower end. The inner stopper 3 improves the airtightness of the container 2 and prevents liquid such as sauce from dripping when the container 2 is opened and used. This inner stopper 3 is fitted into the protruding portion 1b, and when the cap A with a pill-proof member is screwed onto the neck portion 2a,
It is designed to fit onto the top end of the neck portion 2a.
The pilfer-proof member 4 includes an attachment ring portion 4a that is engaged with the groove 1c, a pilfer-proof ring portion 4b that is engaged with the lower surface of the annular protrusion 2b formed on the neck portion 2a, and an attachment ring portion 4a. and a connecting portion 4c connected between the pilfer-proof ring portion 4b and the pilfer-proof ring portion 4b.

When the cap body 1 is moved above the neck portion 2a, the pilfer-proof member 4 is engaged with the attachment ring portion 4a that is engaged with the groove portion 1c of the cap body 1 and the annular protrusion portion 2b of the container 2. The cap body 1 is separated from the pilfer-proof ring part 4b, the connecting part 4c is cut, and the cap body 1 is attached to the container 2.
It is configured so that it can be confirmed that it has been removed from the

When manufacturing the cap A with the pilfer-proof member having the above configuration, the cap body 1,
The inner plug 3 and the pill-proof member 4 are molded separately, and first, the inner plug 3 is attached to the top plate portion 1a of the cap body 1.
The mounting ring portion 4a of the pilfer-proof member 4 is fitted into the protrusion 1b formed on the inner surface, and then the attachment ring portion 4a of the pilfer-proof member 4 is fitted.
into the groove 1c of the cap body 1.

[Problem that the invention seeks to solve]

By the way, in the above-mentioned conventional method for manufacturing a cap with a pill-proof member, the pill-proof member and the inner plug are separately molded, and the pill-proof member and the inner plug are separately attached to the cap body. Therefore, there was a problem that a large number of molding steps and assembly steps were required. In addition, since the pilfer-proof member is an annular elastic body,
It is difficult to hold and position the cap, and therefore, there is a problem in that it is difficult to mechanize the conventional manufacturing method of caps with pilfer-proof members.

[Means for solving problems]

In the present invention, as a means for solving the above problems, a cap with a pilfer-proof member is manufactured by the following method.

First, an inner plug is integrally molded inside the pilfer-proof member via a connecting portion. Next, the mounting ring portion of the integrally molded pill-proof member with inner plug is engaged with the inner groove portion of the lower end portion of the cap body. Then, the connecting portion between the pilfer-proof member and the inner plug is cut, and the inner plug is fitted inside the top plate of the cap main body.

〔Example〕

This example is a manufacturing method for making cap B with a pill-proof member shown in FIG. It is characterized in that the member is attached to the cap body.

1 to 7 show an embodiment of the present invention. In these figures, the symbol 5
is a cap body, and 6 is a pill-proof member with an inner stopper.

First, prior to explaining the manufacturing method of the cap with a pill-proof member according to this embodiment, the structure of the cap body 5 and the pill-proof member with an inner stopper will be explained with reference to FIGS. 4 to 7.

As shown in FIG. 4, the cap body 5 is made of synthetic resin, and its main components include a disc-shaped top plate 7 and a cylindrical part 8 extending downward from the periphery of the top plate 7. It is something to do. On the inner surface of the top plate part 7, an inner plug fitting part 9 is formed to protrude downward and has a slightly larger diameter than the inner diameter of the cylindrical part of the inner plug, which will be described later. This inner plug fitting part 9 has a protrusion 9a formed at its lower outer peripheral edge to come into contact with the inner circumferential surface of the cylindrical part of the inner plug. The cylindrical part 8 has a female screw part 1 in the middle of the inner peripheral surface thereof, which is screwed into the male screw part of the neck of the container.
0 is formed, and a vertical knurling 1 is formed on the outer peripheral surface.
1 is formed. The inner diameter of the lower end portion 8a of the cylindrical portion 8 is expanded to a larger diameter than the inner diameter of the upper end side of the cylindrical portion 8. The lower end portion 8a of the cylindrical portion 8 is formed with an annular recess 13 having a flange 12 projecting radially inward from the lower edge thereof.
A large number of protrusions 14, 14, .

On the other hand, the pill-proof member 6 with inner plug is formed by integrally molding the pill-proof member and the inner plug, and as shown in detail in FIGS. , this attachment ring part 16 is provided with a connecting part 19 composed of bridges 17, 17... and stems 18, 18...
The pilf-proof ring part 20 connected via the pilf-proof ring part 20
and an inner stopper 22 connected via a plurality of connecting parts 21, 21, . . .

The attachment ring portion 16 has an outer peripheral surface tapered downwardly and gradually outwardly, an inner peripheral surface vertically formed, and a portion with the largest outer diameter facing the cap body 5. The diameter is approximately the same as the inner diameter of the groove portion 15. On the inner circumferential surface of this attachment ring portion 16, a large diameter stem 1 is arranged so as to extend downward at a location dividing the circumference into three equal parts.
8.18... is formed. Further, on the same inner circumferential surface, a narrow diameter bridge 17 extending downward so as to divide the space between the stems 18, 18, into five equal parts.
17... are formed. Further, on the lower side of the attachment ring part 16, at a predetermined distance from this,
In addition, a pilf-proof ring part 20 is connected on the same axis as the central axis of the attachment ring part 16, and this pilf-proof ring part 20
are the side surfaces 18a, 18a of the stems 18, 18...
..., 18b, 18b... and bridge 17.
17... are connected to the lower end portions and held below the attachment ring portion 16.

The pilfer-proof ring portion 20 is composed of a ring main body 23 and locking tongue pieces 24, 24, . . . . The ring body 23 has stems 18, 18...
. . . and bridges 17, 17 . Stem 1 of this ring body 23
A portion connected to one side surface 18a, 18a, . . . of 8, 18, . Further, on the lower edge of the ring body 23, there are locking tongue pieces 2, respectively, between the stems 18, 18...
4, 24... are placed in succession. These locking tongues 24, 24... are formed so as to gradually incline upward from the lower edge of the ring body 23, and the inner diameter of their upper edge The outer diameter of the lower part of the annular protrusion formed on the neck of the container is approximately the same as the outer diameter of the annular protrusion. Then, these locking tongue pieces 24, 24... and the ring body 2
A large number of concave and convex portions are formed on the mutually opposing inner surfaces of No. 3, respectively.

On the inner circumferential surface of the upper end of these locking tongues 24, 24..., a plurality of small-diameter connecting portions 21, 21... extend radially inward at predetermined intervals in the circumferential direction.
is formed. In addition, the locking tongue pieces 24, 24...
An inner plug 22 is connected to the inner peripheral surface of the upper end portion in the radial direction at a predetermined distance therebetween and on the same axis as the center axis of the inner plug 22.
are connected and held by the connecting portions 21, 21, . . . .

The inner stopper 22 improves the sealing performance of the container, and
When the container is opened and used, the flow rate of the sauce etc. can be adjusted and liquid dripping can be prevented. The main components of the inner stopper 22 include a cylindrical portion 26 whose upper end is expanded into a flange shape, and a bottom portion 27. A plurality of protrusions 28 , 28 . ... comes into contact with the inner peripheral surface of the neck of the container, thereby causing the inner stopper 2
2 is adapted to fit into the top end of the neck of the container. Further, the inner diameter of the cylindrical portion 26 is the same as that of the cap body 5.
The inner plug 22 is formed to be slightly smaller in outer diameter than the outer diameter of the inner plug fitting part 9 formed on the top plate part 7, so that the inner plug 22 can be kept fitted in the inner plug fitting part 9. There is.

The bottom portion 27 is formed to be gradually inclined upwardly from the lower end edge of the cylindrical portion 26 inward in the radial direction, and to be flatter than the middle between the inner periphery of the cylindrical portion 26 and the central axis. This bottom portion 27 has, from its inner peripheral edge to the flat portion 27a formed as described above,
An oblong pull top 29 is formed. The pull top 29 has a thin part 27b formed on the bottom 27 so as to frame an oval, and a pull ring 30 formed at the end of the oval part 27c formed in this way. When the pull top 29 is pulled with a finger on the pull ring 30, the thin part 27b is cut and the bottom part 29 is pulled.
7 so that it can be easily removed.

Next, the cap body 5 configured as described above is
A method of assembling the cap B with a pill-proof member from the cap and the pill-proof member with an inner stopper will be explained with reference to FIGS. 1 to 3.

First, as shown in FIG.
is inserted into the fixture 31 with its groove 15 facing upward. On the other hand, the pilfer-proof member 6 with inner plug is
The holder 32 allows the cap to be placed above the cap body 5 and on the same axis as the central axis of the cap body 5.
Hold the attachment ring portion 16 facing downward.

Here, the holder 32 consists of a cylindrical holding part 32a and a shaft part 32b, and the shaft part 32b has a suction hole 32c formed on its central axis. The inner diameter of the holding part 32a is the same as that of the cylindrical part 26 of the inner stopper 22.
The outer diameter is slightly larger than the outer diameter of the protrusions 28, 28, . The lower end edge of the holding portion 32a is adapted to be in close contact with the upper surface of the expanded edge of the cylindrical portion 26 of the inner stopper 22. Based on such a configuration, the holder 32 is capable of holding the inner plug pilfer-proof member 6 by vacuum suction.

The pilfer-proof member 6 with inner stopper held in this way is moved toward the cap body 5 and
Push down in the direction of arrow A in the figure. Then, the attachment ring portion 16 is fitted so that its tapered outer circumferential surface contacts the inner circumferential surface of the flange portion 12 of the cap body 5, and then engaged with the groove portion 15 as shown in FIG. . Here, the pilf-proof member 6 with inner stopper is held in a state where it cannot be moved either upward or downward because its attachment ring portion 16 and groove portion 15 are engaged. Next, in this state, when the holder 32 is further pushed down in the direction of arrow A in FIG. 21.21...
is disconnected. Furthermore, the inner plug 22 is inserted toward the top plate portion 7 of the cap body 5, and is fitted into the inner plug fitting portion 9 as shown in FIG. The inner plug 22 has a protrusion 9a of the inner plug fitting portion 9 on the inner circumferential surface of the end of the cylindrical portion 26.
By pressing into contact with each other, the state of being fitted into the inner stopper fitting part 9 is maintained.

In addition, in the above assembly method, the shape and strength of each member are set as follows.

The axial force required to fit the attachment ring part 16 into the groove part 15 is X, and the maximum allowable force in order for the connection part 19 between the attachment ring part 16 and the pilfer-proof ring part 20 to not buckle. Assuming that the force in the axial direction is Y, and the force required to disconnect the connecting parts 21, 21, . The shape and diameter of the outer circumferential surface of the attachment ring portion 16 and the inner circumferential surface of the flange 12 are set, and the connecting portion 19 and the connecting portions 21, 21, . . .
The strength of... is set.

The thus assembled cap B with a pilfer-proof member is screwed onto the neck of the container as shown in FIG. 9, similarly to the cap A with a pilfer-proof member described in the conventional example. At this time, the inner stopper 22 is fitted onto the top end of the neck. Then, when the cap is moved upward, the locking tongue catches on the annular protrusion formed on the neck of the container, and the bridge and cut section are cut off.
It can be confirmed that the container has been opened once.

In the above embodiment, the inner circumferential surface of the cylindrical portion 26 of the inner plug 22 is formed to be smooth, but there is a protrusion 9a in the portion that comes into contact with the protrusion 9a of the inner plug fitting portion 9.
An annular recess may be formed to engage with.
Furthermore, a convex portion may be formed on the inner circumferential surface of the cylindrical portion 26 so as to engage with the upper circumferential edge of the protrusion 9a.

FIG. 8 is a diagram showing still another embodiment of the present invention.

The embodiment shown in this figure is based on the inner plug 3 of the pilfer-proof member with inner plug described in the previous embodiment.
3, as shown in the figure, it is composed of a disc-shaped lid part 34 and an annular spout part 35 projecting from the top surface thereof.

An annular convex portion 34a that engages with an annular concave portion 36a provided on the upper inner circumferential surface of the cap body 36 is formed on the peripheral edge of the lid portion 34, and an annular convex portion 34a that engages with an annular concave portion 36a provided on the upper inner circumferential surface of the cap body 36 is formed on the lower side of the convex portion 34a. An annular convex portion 34b is formed to engage with an annular concave portion 37b formed on the outer peripheral surface of the upper end portion of the neck portion 37a. Further, a pull top 38 is formed on the lid portion 34. The pull top 38 has an annular thin wall portion 34c on the top surface of the lid portion 34.
and a pull ring 39. When the pull top 38 is pulled with a finger on a pull ring 39, the thin wall portion 34c is severed, and the pull top 38 can be easily removed from the lid portion 34. Spout part 3
5 is formed such that its inner circumferential surface increases in diameter upwardly from the upper surface of the lid portion 34, and the thickness of its cross section gradually becomes thinner upwardly.

The inner stopper 33 configured in this manner is molded integrally with the pilfer-proof member as in the above-described embodiment.

In order to attach the pill-proof member having the inner plug 33 to the cap body 36, first, the pill-proof ring part 16 is fitted into the groove 36b of the cap body 36, and then, as in the previous embodiment, The inner stopper 33 is fitted into an annular recess 36a formed at the upper part of the inner peripheral surface of the cap body 36.
In addition, when the inner stopper 33 is screwed onto the neck 37a of the container 37, the convex part 34b of the inner stopper 33 fits into the recessed part of the neck 37a. 37b and fits into the top end of the neck 37a.

〔Effect of the invention〕

According to this invention, the pilph-proof member and the inner plug are integrally molded, and the mounting ring portion of the integrally molded pilf-proof member with the inner plug is engaged with the groove of the cap body, and then the Since the plug is manufactured by cutting the plug from the pilfer-proof member and fitting it inside the top plate of the cap body, the number of molding and assembly steps is reduced.
The pilfer-proof member with the inner stopper can be easily held and positioned, and the assembly can be easily mechanized.

[Brief explanation of the drawing]

Figures 1 to 7 are views showing an embodiment of the present invention, and Figure 1 shows a state in which the cap body is fitted into the fixture and the pill-proof member with inner stopper is held by the retainer. Figure 2 is a cross-sectional view showing the state shown in Figure 1 with the holder pushed down toward the cap body and the attachment ring fitted into the groove, Figure 3 is the state shown in Figure 2. A cross-sectional view showing the state in which the holder is further pushed down toward the cap body and the inner plug is fitted into the inner plug fitting part, Figure 4 is a cross-sectional view showing the structure of the cap body, and Figure 5 is a pill with inner plug. FIG. 6 is a cross-sectional view showing the structure of the pilfer-proof member, FIG. 6 is a plan view showing the structure of the pilfer-proof member with an inner plug, FIG. 7 is a perspective view showing the detailed structure of the pilfer-proof member with an inner plug, and FIG. The figure is a sectional view showing a cap with a pilfer-proof member screwed onto the neck of a container as shown in another embodiment, and FIG. 9 shows a cap with a conventional pilfer-proof member screwed onto the neck of a container. It is a sectional view showing a state. A... Cap with pilfer-proof material, B
...Cap with pilfer-proof material, 1...
Cap body, 1a...Top plate part, 1c...Groove part,
2... Container, 2a... Neck, 2b... Annular protrusion, 3... Inner stopper, 4... Pilfer-proof member, 4a... Mounting ring part, 4b... Pilfer-proof ring part, 4c... Connecting part, 5...
Cap body, 6...Pilfer-proof member with inner plug, 7...Top plate part, 8a...Lower end part, 15...
Groove portion, 16... Attachment ring portion, 19... Connection portion, 20... Pilf-proof ring portion, 21
... Connecting part, 22 ... Inner stopper, 33 ... Inner stopper, 36
...Cap body, 36b...Groove, 37...Container, 37a...Neck.

Claims (1)

[Claims] 1. A cap body that is screwed onto the neck of a container for sauce, etc., an inner stopper that is fitted to the top end of the neck of the container, and a pill fur that is interposed between the lower end of the cap body and the neck of the container. The pilfer-proof member includes an attachment ring portion that is engaged with a groove on the inner circumferential surface of the lower end of the cap body, and a lower surface of an annular protrusion formed on the neck of the container. A pilfer-proof ring part,
When removing the cap, which is formed by an easy-to-cut connecting part connected between the pilfer-proof ring part and the attachment ring part and is screwed onto the neck part of the container, the cap body is attached to the neck part of the container. A pilfer-proof member configured such that when raised, the connection between the attachment ring portion engaged with the cap body and the pilfer-proof ring portion engaged with the annular projection of the container is torn off. In a manufacturing method for a cap with a cap, an inner plug is integrally molded inside a pilf-proof ring part via a connection part that is easy to cut, and the mounting ring part of the integrally molded pilf-proof member with an inner plug is attached. Engage with the groove on the inner circumferential surface of the lower end of the cap body, then cut the connection between the pilfer-proof ring and the inner plug, and fit the inner plug inside the top branch of the cap body. A method for producing a cap with a pilfer-proof member, characterized by: