JP4251280B2 - Plastic cap with separation function - Google Patents

Description

The present invention relates to a plastic cap that is used by being plugged into a mouth portion of a container that contains edible oil, beverages, seasonings, and the like. More specifically, the present invention includes a cap body and an upper lid that is screwed to and detached from the cap body. Can be separated from the container mouth by using the notch knob, and can be disposed of separately. The tip of the notch knob is folded and stored in the upper lid when the upper lid is screwed, and unauthorized opening can be easily seen. The present invention relates to a plastic cap having a sorting function with a tamper evidence function.

Plastic caps are often used in containers that contain cooking oil, beverages, seasonings, etc.
Many of them are made of a material different from the container mainly from the viewpoint of production and material cost. And this plastic cap is plugged into the mouth of the container to make it liquid-tight, and is kept in a liquid-tight state so that it is not easily removed, and further, by providing a tamper-evidence mechanism, the upper lid is opened. The fact remains, and most of them are designed to prevent various mischiefs. Since this plastic cap is not easily removed from the mouth of the container in order to maintain a liquid-tight state, various measures have been taken in recent years to respond to consumers' increased awareness of separation and disposal. . The following are known as general shapes of plastic caps that facilitate such separation.

Utility Model Registration No. 2589034 Japanese Patent Laid-Open No. 11-152156 JP 2001-97431 A

As shown in FIG. 12, the plastic cap described in Patent Document 1 is plugged into the small diameter portion b at the tip end of the mouth portion a of the container and has a pouring cylinder c, and the lower end of the outer cylinder of the cap body d. A lower cylinder g having a weakening line and a knob f to be connected to the outer peripheral edge at the fragile portion e and breaking, and an upper lid i to be screwed into and detached from a large diameter screw portion h below the small diameter portion b at the tip of the container mouth a When separating and discarding, the weakening line e is broken by the knob f, and the weakened part e is also broken, and the lower cylinder g is separated from the outer peripheral edge of the lower end of the outer cylinder of the cap body d, and the outside of the cap body d is removed. If a bottle opener is hung between the bottom of the cylinder and the bottom of the dispensing cylinder c, the cap body d can be easily removed from the mouth part a of the container.

As shown in FIGS. 13, 14, and 15, the plastic cap described in Patent Document 2 includes a cap body d <b> 1 that is plugged into the mouth portion a of the container, and an upper lid i <b> 1 that is screwed into and removed from the cap body d <b> 1.
And the cylindrical side wall of the cap body d1 is a first cylindrical side wall k continuous with the top plate j and a second cylindrical side wall k extending through the horizontal flange wall l and extending downward. A tearing knob comprising a cylindrical side wall m and having an opening n formed in a horizontal flange wall 1 between the two cylindrical side walls k and m. The opening n is swingably connected to the horizontal flange wall l. f is provided and two weak parts e extend from the knob f. When the upper lid i1 is open, it rises above the upper surface of the horizontal flange wall l, and when the upper lid i1 is closed, the upper lid i1 Open n at the bottom
It is pushed in. When separating and discarding, the cap body d1 can be easily removed from the mouth part a of the container by breaking the two weak parts e with the knob f.

As shown in FIGS. 16 and 17, the plastic cap described in Patent Document 3 includes a cap body d2 including a cylindrical portion o, a dispensing cylinder c, a blocking wall p, a score q, and a pull ring r, and The upper lid i2 is screwed to and removed from the cap body d2, and a tearing knob f is erected above the separation base end of the cylindrical portion o located concentrically outside the dispensing cylinder c. In o, a circumferential slit portion s at an inner position of the separation base end portion, a longitudinal weakening line continuing to one end of the circumferential slit portion s, and a circumferential weakening continuing to the other end of the circumferential slit portion s. Are formed by the upper lid i2, and the convex portion t of the upper lid i2 is covered with the circumferential slit s or s when the waste is separated. Engage with the tearing knob f and pull it towards you Firstly expired longitudinal weakening line, by pulling the knob f at Then fingers in the circumferential direction and crispness circumferential weakening line, in which can be removed from the mouth portion a of the container cap body d2 easily.

In the plastic cap disclosed in Patent Document 1, the mouth of the container is provided unless the bottom cylinder g is separated from the cap body d with the knob f and the bottle is not opened between the bottom of the outer cylinder of the cap body d and the bottom of the extraction cylinder c. Since the cap body d cannot be removed from a, it is difficult to separate without a bottle opener, and the mouth part a is formed by the tip small-diameter part b and the large-diameter screw part h below it. Must be a container. Moreover, since it is easy to remove the top lid i from the large-diameter screw portion h of the mouth portion a of the container, there is a risk that the tampered person can contaminate the extraction tube c and tamper the worst contents. .

Moreover, the plastic cap of patent document 2 can only remove the 2nd cylindrical side wall m if the weak part e is fractured | ruptured with the knob f, and the 1st cylindrical side wall k is plugged in the opening part a of a container. In order to remove it, a corresponding force is required, and there is a space between the pouring tube c and the annular protrusion u, and the contents hanging from the pouring tube c are likely to accumulate there. Alteration causes various inconveniences. In addition, since it is easy to remove the upper lid i1 from the cap body d1, there is a possibility that the illegally opened person may contaminate the extraction cylinder c and tamper with the worst contents.

Further, in the plastic cap of Patent Document 3, the convex portion t of the upper lid i2 is formed in the circumferential slit portion s.
Or, engage the tearing knob f or pull the tearing knob f directly with your fingers, cut the longitudinal weakening line first, and then pull the knob f with your fingers in the circumferential direction. Although the weakening line is cut off, the cylindrical part o of the cap body d2 has a considerable rigidity and at the same time the circumferential weakening line must be cut, so if the finger f cannot be pulled in the circumferential direction with considerable force, It is difficult to cut the part o, and it is actually difficult to remove the cap body d2 from the mouth part a, and there is a possibility that the fingers are cut by the burr after cutting. On the other hand, since it is easy to remove the upper lid i2 from the cap body d2, there is a possibility that the illegally opened person may contaminate the extraction cylinder c and tamper the worst contents.

Accordingly, an object of the present invention is to prevent contamination of the dispensing cylinder directly touching the contents and tampering with the contents, so that the contents hanging from the dispensing cylinder do not collect in the cap, and the mouth of the container is discarded. easily with can be enhanced separate disposal property separation from parts, at least a portion of the notch knob flexibility for cutting out stoppered portion during fractionation, the outer peripheral wall inner surface of the upper lid when screwing the lid to provide a contact with a plastic cap having a separation function as folding housing can the skirt side of the stoppered portion between the cap body and the upper lid.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention,
A cap body having a stopper portion for stoppering the mouth of the container under the top plate and having a pouring tube on the top plate, and an upper lid screwed on and removed from the pouring tube of the cap body Become
The cap body has a fragile part for notching the stopper part and a flexible notch knob on the top plate of the stopper part surrounded by the fragile part,
The upper lid includes a screw peripheral wall that is screwed into and removed from the extraction cylinder of the cap body, and an outer peripheral wall that is continuous with the screw peripheral wall and covers at least a part of the knob for notch,
When the upper lid is screwed onto the cap body, the outer peripheral wall of the upper lid abuts on the notch knob , and at least the tip of the notch knob is placed between the cap body and the upper lid so that the skirt of the stopper portion It is folded and stored on the side ,
There is provided a plastic cap having a separation function, wherein the stopper portion of the cap body is notched with the weakened portion and the notch knob, and the cap body can be detached from the mouth portion of the container. The

Further, according to the present invention, the outer peripheral wall inner surface of the upper lid, or have a slope of order bending the contact with knob notch in the skirt portion side of the notch knob, or at least a tip of the notch knob is There is provided a plastic cap having the above-described sorting function inclined outward to come into contact with the inner surface of the outer peripheral wall of the upper lid .

Further, according to the present invention, there is provided a plastic cap having the above-described sorting function, in which the dispensing cylinder of the cap body has a hollow portion between an outer surface and an inner surface .

Further, according to the present invention, there is provided a plastic cap provided with the sorting function, wherein the notch knob has a gate shape.

According to the present invention, a band is connected to the upper lid via a tamper-evidence mechanism, and the tamper-evidence mechanism connects the upper lid and the band below the band with an easily breakable connecting rib. In addition, a stopper is provided on the upper lid and the band to rotate them synchronously in the screwing direction, a cap body side ratchet is provided on the outer peripheral surface of the cap body, and a band side ratchet is provided on the inner peripheral surface of the band. The cap body side ratchet is set so as to wrap to the band side ratchet by expanding the diameter when the cap body is plugged into the mouth portion, and the band falling space after the linking rib breaks is further defined by the cap. A plastic cap having the above-described sorting function secured around the body is provided.

According to the present invention, when the upper lid is screwed into and removed from the dispensing cylinder of the cap body, there is no space for the contents to accumulate between the cap body and the upper lid, and the outer periphery of the upper lid is screwed when the upper lid is screwed onto the cap body. Since the wall inner surface is in contact with the notch knob and at least the tip of the notch knob can be folded and housed between the cap body and the top lid on the skirt side of the stopper part, the screw peripheral wall and the outer peripheral wall are integrated. It is Ru can. Further , the cap body can be detached from the mouth of the container after the upper lid is screwed off from the cap body, the weakened portion is broken by the notch knob folded and stored, and the stopper portion of the cap body is cut away. Therefore, the contents drooping from the dispensing cylinder do not collect in the cap, no wrinkles are caused, and the screw peripheral wall and the outer peripheral wall can be integrated, thus simplifying the molding die. In addition, the molded resin material can be reduced, and the cap main body can be easily separated from the mouth of the container at the time of disposal, and there is an effect that the separation and discarding property can be improved.

Moreover, by providing a hollow part in the extraction | pouring cylinder of a cap main body, the molding material for that part can be reduced and it can contribute also to the weight reduction of a product.
Further, by making the notch knob in a gate shape, it is easy to grip with fingers, and there is an effect that the fragile part can be very easily broken and the stopper part of the cap body can be notched when the container is discarded.

In addition, the cap body side ratchet is wrapped on the band side ratchet using the diameter expansion of the cap body when the cap body is plugged into the mouth of the container, and the upper lid is smoothly screwed onto the cap body before the plugging. The tamper-evidence mechanism works when the upper lid is screwed off from the cap body after the stopper is plugged, and the tether rib is broken and the band falls into the drop space. Even if the processing accuracy of the tamper-evidence mechanism is low, the tamper-evident mechanism is opened incorrectly. There is an effect that can be seen at a glance.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

1 is a cross-sectional view of a plastic cap (hereinafter also referred to as a separable plastic cap) having a sorting function, showing Embodiment 1 of the present invention, FIG. 2 is a front view of the cap body,
FIG. 3 is a side view of the cap body, and FIG. 4 is a side view of the top lid of the cap. A cross-sectional view taken along line VII-VII in FIG. 4 is shown in FIG.
In the drawing, a separable plastic cap 1 includes a cap body 7 having a stopper portion 5 for stoppering a mouth portion 4 of a container 3 below a top plate 2 and a pouring cylinder 6 on the top plate 2. The cap body 7 includes an upper lid 8 that is screwed into and removed from the dispensing cylinder 6 of the cap body 7, and a band 10 that is connected to the upper lid 8 with a tamper-evidence mechanism 9 interposed therebetween. And a flexible notch knob 12 provided in the stopper portion 5 surrounded by the weak portion 11, and the upper lid 8 is a screw peripheral wall 13 that is screwed into and removed from the pouring cylinder 6 of the cap body 7. This screw peripheral wall 1
3 and has an outer peripheral wall 14 that covers at least a part of the notch knob 12. When the upper lid 8 is screwed onto the cap body 7, the notch knob 12 is folded and stored between the cap body 7 and the upper lid 8. Thus, the stopper portion 5 of the cap body 7 is cut out by the weakened portion 11 and the notch knob 12 so that the cap body 7 can be detached from the mouth portion 4 of the container 3.

The container 3 is not particularly limited as long as the above-described separable plastic cap 1 can be plugged into the mouth portion 4, and may be of any type and material. This embodiment assumes a bottle-type plastic container that is frequently used for cooking oil, seasonings, and the like and that has a relatively large number of open / close stoppers by the upper lid 8.

The separable plastic cap 1 is made of plastic of a material different from that of the container body, and has a cap body 7, an upper lid 8 that is screwed onto the cap body 7, and a tamper evidence mechanism 9 interposed therebetween. It consists of the band 10 which becomes. The cap body 7 is provided with an inner ring 20 and a skirt portion 21 below the top plate 2 to form the stopper portion 5, and the stopper 4 is applied by opening the mouth portion 4 of the container 3 to the opening 22 of the stopper portion 5. To make it liquid-tight. And
The pouring cylinder 6 is erected on the top plate 2 of the cap body 7, and the upper lid 8 is screwed and removed by screws engraved on the outer surface of the pouring cylinder 6. Further, a hollow portion 23 is provided in the pouring tube 6, and reinforcing ribs 24 are provided at important points of the hollow portion 23 to reinforce the pouring tube 6. Therefore, even if the pouring cylinder 6 is enlarged, the hollow portion 23 is formed in order to prevent the contents hung from the pouring cylinder 6 from being accumulated by screwing the upper lid 8 on the pouring cylinder 6 of the cap body 7. The material can be reduced and the weight can be reduced.

The top plate 2 positioned at the bottom of the pouring tube 6 is provided with a pouring hole score 25, and a pull ring 26 is attached to the top plate 2 surrounded by the pouring hole score 25. Therefore, by pulling and pulling the pull ring 26 with fingers, the pouring hole score 25 can be broken and opened, and the contents of the container 3 can be poured out from the pouring cylinder 6. At that time, even if the content poured out from the pouring cylinder 6 hangs down on the outer surface of the pouring cylinder 6, it does not accumulate just by flowing over the top plate 2 and the skirt portion 21, and Unsanitary situations such as generation of soot due to the residue are avoided.

The cap body 7 is provided with a sorting and discarding function. As shown in FIGS. 1 and 2, the sorting and discarding function is applied to the top plate 2 and the skirt portion 21 constituting the stopper portion 5 and a part of them. This can be realized by a fragile portion 11 for notching and a flexible gate-shaped notch knob 12 provided on the top plate 2 surrounded and notched by the fragile portion 11. In this example, the notch knob 12 is formed in a gate shape, that is, a gate shape, as shown in FIG. Using this notch knob 12, the fragile portion 11 is broken and a part of the top plate 2 and the skirt portion 21 is cut away.
The cap body 7 is removed from the mouth 4 of the container 3. Alternatively, when the upper lid 8 is screwed onto the dispensing tube 6 of the cap body 7 after being cut out and the upper lid 8 is kneaded with the notched portion facing upward, the cap body 7 together with the upper lid 8 can be easily removed from the mouth 4 of the container 3. The container 3 can be separated from the upper lid 8 and the cap body 7, and can be recycled or discarded as it is.
The flexible notch knob 12 has a gate shape and is easily grasped by a finger, but is not limited to this shape, and may be, for example, a plate shape.

Further, in this embodiment, the two weak portions 11 adjacent to the base portion of the notch knob 12 are formed in the vertical direction, but as shown in FIG. 8, in the vicinity of any leg portion of the notch knob 12. The separation function is also realized by forming one weak part 11 in the vertical direction and one weak part 11 in the circumferential direction starting from the point, and cutting the cap body into a hook shape along the weak part in the vertical and circumferential directions. can do.

This notch knob 12 is flexible, and is folded and stored in two on the skirt portion 21 side of the stopper portion 5 between the upper lid 8 and the cap body 7 as described above. That is, the upper lid 8 is formed by the top plate 30, the screw peripheral wall 13 that follows the top plate 30, and the outer peripheral wall 14 that is integral therewith, and the outer peripheral wall 14 is formed by the inclined wall 14 a and the vertical wall 14 b that are continuous with the screw peripheral wall 13. Thus, a knob housing portion 27 is formed by the inclined wall 14a, the vertical wall 14b, the top plate 2 of the cap body 7 and the recess 21a of the skirt portion 21. Therefore, when the upper lid 8 is screwed onto the cap body 7, as shown in FIG. 5, the flexible notch knob 12 abuts against the inclined wall 14a on the inner surface of the upper lid 8 and comes into contact with the inclined wall 14a and the vertical wall 14b. Guided and folded and stored in the knob storage 27.

In order to always keep the flexible notch knob 12 in the retracted state as shown in FIG. 9, it is preferable that the tip of the notch knob 12 be positioned outside the vertical wall 14b of the upper lid 8, Inclines the notch knob 12 outward or bends the tip outward to position it outside the vertical wall 14b. Alternatively, the angle α when the tip of the notch knob 12 hits the inclined wall 14a of the upper lid 8 is made an obtuse angle. In order to make the angle α an obtuse angle, it is preferable to incline the notch knob 12 outward, bend the tip outward, or make the inclined wall 14a of the upper lid 8 as close to horizontal as possible. Since the notch knob 12 retains an appropriate degree of flexibility, even if it is folded and stored between the upper lid 8 and the cap body 7 for a long time, the shape does not change, and the If the upper lid 8 is screwed off, it can be restored to its original shape. However, as long as it can be caused by fingers, the notch knob may be bent or the shape may remain deformed.

Further, the upper lid 8 is provided with an inner ring 31 concentrically on the inner surface of the top plate 30, the screw peripheral wall 13 is screwed into and removed from the pouring cylinder 6 of the cap body 7, and the inner ring 31 is arranged in the pouring cylinder 6.
It is fitted in a liquid-tight manner to prevent leakage of the contents, and a non-slip 32 is provided on the outer periphery of the screw peripheral wall 13 to facilitate screwing on and off the cap body 7. The upper lid 8 is integrally connected to the band 10 below the upper lid 8 with the tamper evidence mechanism 9 interposed therebetween. The band 10 has a ring shape and is in a position covering the skirt portion 21 of the cap body 7. Since the upper cover 8 is integrally formed with the screw peripheral wall 13 and the outer peripheral wall 14, there is an advantage that the molding die can be simplified and the resin material for molding can be reduced. .

A tamper evidence mechanism 9 is interposed between the upper lid 8 and the band 10 below the upper lid 8.
The tamper evidence mechanism 9 has the following configuration.
That is, the tamper evidence mechanism 9 connects the upper lid 8 and the band 10 below the upper lid 8 with an easily breakable connecting rib 33 and provides the stoppers 34 on the upper lid 8 and the band 10 to synchronize them in the screwing direction. The cap main body side ratchet 35 is provided on the outer peripheral surface of the cap main body 7, the band side ratchet 36 is provided on the inner peripheral surface of the band 10, and the cap main body 7 is plugged into the mouth 4 of the container 3. The cap body side ratchet 35 is set to wrap around the band side ratchet 36 by expanding the diameter of the cap body 7, and a drop space 37 of the band 10 after the joining rib 33 is broken is secured around the cap body 7. . Therefore, first, it is necessary to screw the upper lid 8 integrally formed with the band 10 to the cap body 7, and the stopper ribs on the lower end surface of the upper lid 8 and the upper end surface of the band 10 so as not to break the connecting rib 33. 34, when the upper lid 8 is screwed onto the cap body 7, that is,
When the upper lid 8 is rotated in the clockwise direction, the stoppers 34 come into contact with each other, and the connecting rib 33 can be screwed without being loaded and broken.

However, when the upper lid 8 is unscrewed from the cap body 7, the band 10 is not attached to the cap body 7.
Since only the upper lid 8 needs to be screwed to the side, a band side ratchet 36 is provided on the inner peripheral surface of the band 10, and a cap main body side ratchet 35 is provided on the outer peripheral surface of the cap main body 7.
As shown in FIG. 9, the positional relationship between the ratchets 35 and 36 does not wrap in a state where the upper lid 8 integrally formed with the band 10 is screwed to the cap body 7 before being plugged (if there is no problem with screwing). As shown in FIG. 10, the cap body side ratchet 35 swells outward due to the diameter of the cap body 7 when the cap body 7 is plugged into the mouth 4 of the container 3 as shown in FIG. The band side ratchet 36 is set so as to wrap by an H dimension.

That is, since the upper lid 8 integrated with the band 10 is first screwed into the cap body 7 and then plugged into the mouth portion 4 of the container 3 in that state, the cap body side due to the diameter expansion of the cap body 7 at that time It is possible to use the outward bulge of the ratchet 35. Therefore, when the upper lid 8 is turned counterclockwise from the cap body 7 and screwed off, the cap body side ratchet 35 and the band side ratchet 36 wrap by the H dimension. 36 cannot get over the cap body side ratchet 35, and the band 10 does not move and the connecting rib 33 is broken. And the band 1 after breaking
Since 0 falls to the drop space 37 until the cap main body side ratchet 35 and the heel part of the upper part of the band 10 come into contact with each other, the fact of tampering is clearly determined at a glance.

In addition, several racks 38 are provided on the upper surface of the band 10 with a slight gap from the upper lid 8 so that the band 10 and the upper lid 8 are integrally configured, and these are screwed to the cap body 7 and the container 3. The connecting rib 33 is prevented from being broken at the mouth portion 4 in the stoppered state, and is supported by the rack 38 with respect to the external force in the vertical direction so that the external force is not applied to the connecting rib 33. 1 and 10 is a detent provided on the cap body 7. When the upper lid 8 integrally formed with the band 10 is screwed onto the cap body 7, the cap body 7 is covered by the band 10 and the upper lid 8. Since it is difficult to fix, the jig 39 is applied to the detent 39 to prevent the cap body 7 from being rotated, so that the upper cover 8 can be smoothly screwed onto the cap body 7 smoothly. .

Next, a method of using the separable plastic cap 1 having the above configuration will be described.
First, the upper lid 8 integrated with the band 10 is screwed onto the cap body 7 in advance. That is, a jig is applied to the detent 39 of the cap body 7, the upper cover 8 integrated with the band 10 is attached to the dispensing cylinder 6, and when the upper cover 8 is turned clockwise, the stoppers 34 of the upper cover 8 and the band 10 are immediately connected to each other. The cap main body 7 is not rotated by the rotation stop 39 and can be screwed to the cap main body 7 without applying a load to the connecting rib 33. The flexible notch knob 12 is folded and housed in a knob housing portion 27 between the cap body 7 and the upper lid 8. And container 3
The inside of the container 3 is filled with the contents, and the container 3 is plugged by applying the mouth 4 of the container 3 to the inner ring 20 of the cap body 7 of the separable plastic cap 1 and the opening 22 of the skirt 21.
The inside is liquid-tight to make the final product.

When the final product is consumed, the cap main body side ratchet 35 and the band side ratchet 36 are brought into contact with each other by screwing the upper cover 8 from the cap main body 7 with fingers using the anti-skid 32 of the upper cover 8, that is, rotating counterclockwise. The band 10 does not move because it is wrapped only by dimension H, and if the upper lid 8 is rotated counterclockwise, the connecting rib 33 can be broken and the upper lid 8 can be unscrewed, and the contents can be taken out from the container 3. I can do it. At this time, even if the liquid runs out poorly and the contents hang down from the pouring cylinder 6, the contents do not collect on the top plate 2 and the skirt portion 21, and remain on the spot. Inconvenient problems such as occurrence of wrinkles can be avoided. Container 3
Even if the contents remain without being consumed inside, it can be stored hygienically by screwing the upper lid 8 back onto the mouth 4. On the other hand, since the broken band 10 is dropped in the drop space 37, if the above-described screwing is illegally opened, the legitimate opener visually observes that the band 10 is dropped in the drop space 37. , The fact of tampering can be recognized immediately and clearly, and danger can be avoided easily.

Then, when the contents in the container 3 are used up, the band 10 is first removed upward with the top cover 8 removed from the mouth 4 in order to separate and discard the container 3 and the separable plastic cap 1 made of a different material. Then, grasp the flexible notch knob 12 to break the fragile portion 11, and remove the cap body 7.
The part 5 of the plug, i.e., the top plate 2 and a part of the skirt part 21 are cut out and the container 3 is left as it is
The cap body 7 can be removed from the mouth portion 4 with fingers. In addition, when the upper lid 8 is screwed onto the dispensing cylinder 5 of the cap body 7 and the cut portion is kneaded upward, the mouth 4 of the container 3 is
Therefore, the cap body 7 can be completely separated from the cap body 7 together with the upper lid 8 without damaging the fingers. Therefore, it is possible to remove the cap body 7 and the band 10 loosely fitted together with the upper lid 8 from the mouth 4 of the container 3 with only fingers without using tools, thereby increasing the effect of waste disposal. I can do it.

As mentioned above, although the Example of this invention was described, it should be understood that a concrete structure is not limited to this, and the change in the range which does not deviate from the summary of this invention is possible suitably.

The separable plastic cap of the present invention is highly applicable when it is required to be disposed of separately from the container, and is required to have a function to prevent contamination of the part directly touching the contents and alteration of the contents.
This is particularly useful when the contents are easily altered.

It is sectional drawing of the separable plastic cap which shows the Example of this invention. It is a front view of the cap main body of a separable plastic cap same as the above. It is a side view of the cap main body of a separable plastic cap same as the above. It is a side view of the top lid of a separability plastic cap same as the above. It is a state figure for demonstrating the contact state of an upper cover and a knob for notches. It is a top view of the cap main body of a separable plastic cap same as the above. It is sectional drawing which follows the VII-VII line of FIG. It is a front view of the cap main body in which the weak part different from FIG. 2 was formed. It is a half-cut sectional view before the stopper of the separable plastic cap. It is a half-cut sectional view of the state where the separable plastic cap is plugged into the mouth of the container. It is sectional drawing of the arrangement | positioning state of both ratchets of a separability plastic cap same as the above. It is a sectional side view which shows the prior art example disclosed by patent document 1. FIG. FIG. 10 is a top view of a conventional cap body disclosed in Patent Document 2. It is a side view of the cap body of the prior art example disclosed by patent document 2. It is a sectional side view which shows the prior art example disclosed by patent document 2. FIG. It is a sectional side view which shows the prior art example disclosed by patent document 3. It is a side view of the conventional cap disclosed in Patent Document 3.

Explanation of symbols

1 separable plastic cap 2, 30 top plate 3 container 4, a mouth 5 plugging portion 6, c pouring cylinder 7, d, d1, d2 cap body 8, i, i1, i2 upper lid 9 tamper-evident mechanism 10 Band 11 Weak part 12 Knob for notch 13, j Screw peripheral wall 14 Outer peripheral wall
14a inclined wall
14b Vertical wall 20, 31 Inner ring 21 Skirt part 22 Opening 23 Cavity part 24 Reinforcement rib 25 Outlet hole score 26, n Pull ring
27 Knob storage part 32 Anti-slip 33 Connecting rib 34 Stopper 35 Cap body side ratchet 36 Band side ratchet 37 Drop space 38 Rack 39 Non-rotating b Tip small diameter part e Thin part f Knob g Lower cylinder h Large diameter screw part k Cylindrical part l Blocking wall m Score o Circumferential slit part p Convex part

Claims (6)

A cap body having a stopper portion for stoppering the mouth of the container under the top plate and having a pouring tube on the top plate, and an upper lid screwed on and removed from the pouring tube of the cap body Become
The cap body has a fragile part for notching the stopper part and a flexible notch knob on the top plate of the stopper part surrounded by the fragile part,
The upper lid includes a screw peripheral wall that is screwed into and removed from the extraction cylinder of the cap body, and an outer peripheral wall that is continuous with the screw peripheral wall and covers at least a part of the knob for notch,
When the upper lid is screwed onto the cap body, the inner surface of the outer peripheral wall of the upper lid comes into contact with the notch knob , and at least the tip of the notch knob is placed between the cap body and the upper lid of the stopper portion. It is folded and stored on the skirt side ,
A plastic cap having a separation function, wherein the cap portion of the cap body is cut out by the weakened portion and the notch knob, and the cap body can be detached from the mouth of the container. Plastic caps outer peripheral wall inner surface, with a separation function according to claim 1, further comprising a tilt of the order folded skirt side contact with knob notch to notch knob of the lid. The plastic cap having a sorting function according to claim 1 or 2, wherein at least a tip of the notch knob is inclined outward so as to contact an inner surface of an outer peripheral wall of the upper lid. The plastic cap provided with the separation function according to any one of claims 1 to 3, wherein the dispensing tube of the cap body has a hollow portion between an outer surface and an inner surface . The plastic cap with a separation function according to any one of claims 1 to 4 , wherein the notch knob has a gate shape.   A band is connected to the upper lid via a tamper-evidence mechanism, and the tamper-evidence mechanism connects the upper lid and the band below the upper lid with an easily breakable connecting rib, and the upper lid and the band. The cap body is provided with a stopper on the outer peripheral surface of the cap body, a cap body side ratchet is provided on the outer peripheral surface of the cap body, a band side ratchet is provided on the inner peripheral surface of the band, and the cap body is connected to the mouth. 2. The cap body side ratchet is set so as to wrap on the band side ratchet by expanding the diameter when it is plugged into the part, and further, a falling space of the band after the rupture of the connecting rib is secured around the cap body. A plastic cap provided with the separation function according to any one of items 5 to 5.

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