JP2001114314A - Crowining-type cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic cap which is easily and certainly removed from the mouth of a container on opening or disposal and prevents scores provided for removal from breaking when being crowned onto the mouth of the container. SOLUTION: In a cap which comprises a top plate having a seal-up part at its inside, a skirt part connected to the periphery of the top plate, an annular band positioned below through an annular score extending in the circumferential direction, and a tear-starting part and a guide part for tearing the annular band vertically, the tear-starting part has a notch connected to the annular score while the guide part has diagonal scores being at different levels and extending downward and in the tearing direction being almost in parallel, and the diagonal scores are formed of a principal score positioned above and an auxiliary score shorter than the principal score and positioned below, and a short run-preventing score extending in the circumferential direction is formed between the principal score and the auxiliary score.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic cap in which breakage of a score at the time of stoppering is prevented. More particularly, the cap can be easily and reliably removed from a container opening when opening or discarding. The present invention relates to a cap which can be removed at the same time, and which is effectively prevented from breaking the score for removing the cap at the time of tapping.

[0002]

2. Description of the Related Art When a plastic cap is attached to a container such as a glass bottle or the like, it is necessary to remove the cap from the opening of the container after the use of the contents due to a requirement for separation and disposal. As a cap having such sorting and disposability, a score is provided on the skirt portion of the cap fitted and fixed to the container mouth portion, and after using the contents, the score is broken to break the cap, thereby obtaining the container mouth portion. There has been known a device which can be detached from a vehicle (for example, Japanese Utility Model Laid-Open No. 4-118343). On the other hand, in order to ensure the safety of the contents, a cap that clearly indicates that the cap has been once opened has also been proposed.When opening the cap, a cap is provided at the lower end of the skirt portion of the cap via a score. Tamper evidence band (T
There has been known a device in which the E band is removed by breaking the score and is clearly opened at a glance (for example, Japanese Patent No. 2743160).

[0003] Generally, a plastic cap is fitted and fixed to a container mouth by a tapping operation. At this time, since the engaging projections of the cap body must climb over the engaging projections of the container mouth, the skirt portion of the cap body expands in the direction of increasing its diameter, and the skirt portion or a circumferential band such as a TE band is used. Has a problem that a stress is generated in the circumferential direction, and this stress acts directly on the score extending in the axial direction of the cap, and in the cap provided with the score as described above, the score is broken by the capping operation. .

Since the score broken in the tapping operation is a score extending in the cap axis direction,
In order to prevent score breakage due to the tapping operation, the shape of the score, the score extending obliquely from the tearing start,
A combination of a score extending in the circumferential direction and a score extending to the lower end of the skirt portion in the axial direction has been proposed (JP-A-8-156960).

[0005]

In the above cap, the rate of breakage of the score due to the capping operation is considerably reduced as compared with a conventional cap in which the score is formed only in the axial direction. In addition, it is required that the rate at which score breaks occur be reduced qualitatively. Therefore,
An object of the present invention is to provide a cap in which a score provided on the cap is effectively prevented from being broken by tapping. Another object of the present invention is to provide a cap which can easily and surely break the score at the time of opening or discarding the cap, and which is excellent in opening property or sorting and discarding property.

[0006]

According to a first aspect of the present invention, a top plate provided with a sealing portion on the inner surface and a skirt connected to the periphery of the top plate are connected via a score extending in a circumferential direction. In a cap provided with a circumferential band located below and a tear start portion and a guide portion for cutting the circumferential band up and down, the tear start portion has a notch portion connected to the circumferential score, The guide portion has a stepped diagonal score extending in the tearing direction and downward and having substantially the same diagonal score. The diagonal score is composed of an upper main score and a lower auxiliary score shorter than the main score. A cap is provided, wherein a short line prevention score extending in the circumferential direction is formed between the score and the score. In a first aspect of the present invention, the tear initiation portion is
A guide portion includes a grip portion having a mounting base for the circumferential band near the guide portion, the mounting base portion extends downward inclining in the cutting direction, the side portion contacts the main score, and the upper portion has the circumferential shape. It is particularly preferable that the lower part is formed so as to be in contact with the notch part connected to the score and the lower part thereof is in contact with the transmission line prevention score extending in the circumferential direction.

According to a second aspect of the present invention, there is further provided a cap body fitted and fixed to the container mouth, and an upper lid provided on the cap body so as to be openable and closable. A top plate part capable of forming an opening for use, a skirt part extending from a peripheral part of the top plate part, a circumferential score for cutting the skirt part in a circumferential direction, a guide part for cutting the skirt part up and down, and a tear. In a cap with a start, the guide has a stepped diagonal score extending in the tearing direction and downwards and having approximately the same diagonal score, the diagonal score being the upper main score and the lower auxiliary being shorter than the main score. The cap is provided, wherein a short line prevention score extending in the circumferential direction is formed between the main score and the auxiliary score. In the second aspect of the present invention, the tearing start portion includes a grip portion having an attachment base to the skirt portion cylindrical side wall near the guide portion, particularly when the upper lid and the cap body are connected by a hinge, It is preferable that a root portion of the hinge connection portion on the skirt portion side be a tearing start portion, and the circumferential score be formed at least inside the hinge connection portion of the cap body.

According to the third aspect of the present invention, a cap body fitted and fixed to the container mouth, an upper lid openably and closably provided on the cap body, and provided integrally with the cap body via a bridging portion. And an outer cylinder that covers an outer surface of the cap main body, wherein the cap main body includes a top plate portion capable of forming an opening for discharging contents and a skirt portion extending from a peripheral edge of the top plate portion. A plurality of notches or weakening portions extending in the axial direction are provided on the skirt portion at intervals in the circumferential direction, and the outer cylinder is provided with a tearing start portion for vertically cutting and a guide portion, and the cap has a guide portion. The part has a stepped diagonal score extending substantially in the same direction as the step extending in the tearing direction and downward, the diagonal score comprising an upper main score and a lower auxiliary score shorter than the main score. Cap, characterized in that the short prevented scores Den line extending in the circumferential direction is formed between the auxiliary score is provided. In the third aspect of the present invention, the tearing start portion is constituted by a grip portion provided near the guide portion, and particularly when the upper lid and the cap body are connected by a hinge, the root portion of the outer cylinder of the hinge is torn. Preferably it is the starting point.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a plastic cap (first embodiment) having a circumferential band located below a skirt portion via a score (circumferential score) extending in a circumferential direction with a skirt portion, an upper lid and a container. A plastic wall (second embodiment) composed of a cap body fitted to the mouth, a cap body fitted to the upper lid and the container mouth, and a double wall covering the outer surface of the skirt portion of the cap body. In the plastic cap (third embodiment) comprising the outer cylinder, the circumferential band, the skirt portion of the cap body, and the score in the tear direction and the downward direction provided on the outer cylinder are unexpectedly broken by the tapping operation. While it can be effectively prevented from being broken, the intentional breaking of the score at the time of opening or discarding can be easily performed, and is excellent in opening property or discarding property.

Generally, when the score is intentionally broken to open or discard the cap, first, a circumferential band,
The cap axial direction score provided on the cap body skirt portion and the outer cylinder is broken downward from above the cap to divide the circumferential band and the like. Then, in the first and second aspects, the circumferential score and the third In the embodiment, the cap can be easily removed from the container opening by breaking the bridge between the cap body and the outer cylinder. On the other hand, when the cap axial direction score provided on the circumferential band or the like is broken by the plugging operation, the cap is broken from the lower end of the axial score (that is, the lower end of the circumferential band or the like). In order to prevent the breaking of the score in the axial direction of the cap due to the above, it is important to suppress the breaking of the score from the lower end to the upper end.

In the present invention, from such a viewpoint,
In the first embodiment, the circumferential band, in the second embodiment, the cap body skirt portion, and in the third embodiment, the guide portion is provided on the outer cylinder and is a score for breaking the circumferential band and the like in the axial direction. (Score extending in the tearing direction and downward) is located above the circumferential band or the like, and is located below the diagonal main score extending in the tearing direction and downward, and below the circumferential band or skirt portion. An auxiliary score shorter than the main score, located between the main score and the auxiliary score, in a stepwise and diagonal direction substantially in the same direction,
It is an important feature to adopt a combination of short circumferential anti-scores extending in the circumferential direction.

As described above, in the cap fitted and fixed to the container mouth by the tapping operation, the engagement protrusion provided on the inner surface of the cap and the engagement protrusion provided on the container mouth engage with each other. The cap is fixed to the container mouth. Therefore, in the cap stoppering operation, the engaging projections provided on the inner surface of the cap have to climb over the engaging projections of the container mouth, so that the skirt portion and the peripheral band of the cap increase in diameter. Spread in the direction. For this reason, stress is generated in the skirt portion and the circumferential band in the circumferential direction, and the axial score extending perpendicularly to the circumferential direction is easily broken. On the other hand, the score in the circumferential direction is hardly affected by the tapping operation, and even when the score extending in the tearing direction and extending downward is broken, if the score is connected to the score in the circumferential direction, the score is broken in the circumferential direction. Stop at

Therefore, in the cap according to the present invention, the circumferential band, the cap body skirt portion, and the guide portion (score extending in the tearing direction and downward) provided on the outer cylinder are provided with the main score, the conduction preventing score, and the auxiliary score from above. Since these scores do not extend parallel to the cap axis direction, they are unlikely to be broken by the expansion in the circumferential direction due to the plugging operation, and the upper end of the auxiliary score is linked to the circumferential line prevention score. Therefore, even if the auxiliary score is broken, the breaking of the score stops at the line prevention score, so that the score does not lead to the main score. Further, since the score length of the auxiliary score is short, even if only the auxiliary score is broken by the capping operation, the effect on the sealing property and the tamper-evident property of the cap is small.

On the other hand, when the score is intentionally broken for opening or discarding, first, the circumferential band, the cap body skirt portion, and the guide portion provided on the outer cylinder are cut in a tearing direction and downward, and then cut. The perforated score can be broken from the cut portion to open or break the cap. In the present invention, since the main score leading to the tear start portion is in an oblique direction, the angle between the tear direction (oblique direction) of the circumferential band and the like and the tear direction (horizontal direction) of the circumferential score is small. It is easy to open and excellent in openability or disposability.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The cap of the present invention will be described in more detail with reference to the accompanying drawings. (Example 1) This is an example of the first embodiment of the cap of the present invention shown in FIGS. 1 to 4, and is a cap having a tamper-evident property in which a peripheral band is removed at the time of opening. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is a partial sectional view of the cap of FIG. 1, and FIG. 4 is a partial sectional view of a state in which the cap of FIG.

In general, the cap of this embodiment, generally indicated by 1, is formed integrally with a top plate 2, a skirt portion 3 hanging down from the top plate 2, and a lower end of the skirt portion 3 and a circumferential score 4. Consists of a circumferential band 5. Above the circumferential band 5, a grasping portion 6 serving as a score tearing start portion is provided.
The gripping portion 6 is provided with a weakening portion 7 that can be broken.
Is also connected to the skirt portion 3 via the. Further, the lower end of the skirt portion 3 is provided with an opening grip portion 8 after removing the circumferential ring.
Is provided. The inner surface of the top plate 2 is provided with an inner ring 9 which is fitted into the container mouth 30 to maintain the sealing performance and a projection 10 which comes into contact with the container mouth tip 31. Further, on the inner surface side of the skirt portion 3, an engagement protrusion 11 which engages with an engagement surface 32 provided on the container mouth portion 30 is provided. Similarly, an engagement protrusion 12 that engages with an engagement surface 33 provided on the container mouth portion 30 is provided on the inner surface side of the peripheral band 5.

The peripheral band 5 is formed with a notch 14 which is in contact with the upper portion 13a of the mounting base 13 of the gripper 6 to the peripheral band 5 and which is connected to the peripheral score 4. An oblique main score 15 is provided so as to be in contact with the side portion 13b and the notch portion. In addition, a short auxiliary score 16 is provided below the circumferential band 5 from the lower end and extends almost in the same direction as the main score and stepwise. Further, the lower end 17a of the main score 15 and the auxiliary score 1
6 are connected to the upper end 17b, and a score perpendicular to the axial direction of the cap is the conduction preventing score 17. In this embodiment, the main score 15 and the circumferential score 4 extend directly from the mounting base 13, but may be provided from the mounting base via a circumferential score or an oblique score.

In this embodiment, when opening the cap, the gripper 6 is pulled in the circumferential direction or diagonally downward,
The guide portion composed of the main score 15, the auxiliary score 16, and the conduction prevention score 17 is broken, the circumferential score 4 is broken, and the circumferential band 5 is removed from the skirt portion 3. As a result, the cap can be removed from the container opening, and the cap is opened when the opening grip 8 is pulled up. Since the cap of this embodiment cannot be opened unless the peripheral band is broken and removed, the cap clearly indicates that the cap was once opened, and has tamper-evident properties. Further, there is an advantage that the cap can be re-captured when the drink is left.

(Embodiment 2) FIGS. 4 to 9 show an example of a second embodiment of the cap according to the present invention. The cap is fitted to the mouth of the container, and the opening for discharging the contents is provided on the top plate. And a top cover for covering the top plate of the cap body. 4 is a front view, FIG. 5 is a side view, FIG. 6 is a rear view, FIG. 7 is a plan view when an upper lid is opened, FIG. 8 is a side sectional view of FIG. 7, and FIG. 9 is a bottom view of FIG. Represent.

The cap body, generally designated 41, comprises a top plate 42 and a skirt 43 depending from the top plate.
The top plate portion has a portion 45 defined by the score 44 to be a content discharging opening and a tab 4 for forming a discharging opening.
6, and a pouring nozzle 47 formed so as to surround the pouring opening. In addition, an inner ring 48 is provided on the inner surface of the top plate portion to be fitted into a container opening (not shown) to maintain the hermeticity of the container. Engagement projections 49a and 49b are provided on the inner surface of the skirt to engage with the container mouth to fix the cap body to the container mouth.

On the other hand, the upper lid 61 comprises a top plate portion 62 and a skirt portion 63 hanging down from the top plate portion, and is formed integrally with the cap body 41 via a hinge portion 64. At the lower end of the skirt 63 opposite the hinge 64, an opening tab 65 for opening the upper lid is provided. Also,
The cap body skirt portion 43 is provided with a circumferential score 50 that substantially makes a round around the skirt portion 43 and a guide portion 51 for breaking the skirt portion in the axial direction. As in the first embodiment, the scores constituting the guide section 51 are composed of a main score 52, a line prevention score 53, and an auxiliary score 54 obliquely from above. Further, the skirt portion 43 is provided with a grip portion 55 connected to the ends of the main score 52 and the circumferential score, and a notch 57 is provided near the mounting base portion 56 of the grip portion 55 to the skirt portion 43. By pulling the grip 55 downward in the tearing direction, the main score 5
2. It is easy to break the guide portion including the line-prevention score 53 and the auxiliary score 54 and the circumferential score 50.

When the cap of this embodiment is opened, the contents can be used by removing the top lid 61 and pulling the spout forming tab 46 to form the spout. After the contents have been used, the cap can be removed from the container for sorting and disposal. That is, the grip portion 55 is pulled in the circumferential direction or the oblique direction, and the main score 5
2, by breaking the guide portion composed of the auxiliary score 53 and the wire-prevention score 54 and breaking the circumferential score 50, the skirt portion 43 is broken and the cap body can be removed from the container mouth. In the specific example shown in the figures, the upper lid is formed integrally with the cap body via a hinge, but may be formed separately from the cap body. In this embodiment, the main score 52 is a circumferential score 58, and the circumferential score 50 is a diagonal score 59.
The main score and the circumferential score may extend directly from the mounting base. Further, in this embodiment, the circumferential score 50 extends over approximately 230 ° so that the cap can be easily removed from the container mouth by pulling up the cut skirt. Since the cap of this embodiment cannot use the contents unless the pouring opening is formed or the skirt portion is broken, the tamper evidence that the cap has been opened once is specified. It also has the property.

(Embodiment 3) FIGS. 10 to 15 show another example of the second embodiment of the cap of the present invention.
A cap that is fitted to the container mouth and has a cap body having an opening for discharging contents in a top plate and an upper lid that covers the top plate of the cap body. 10 is a front view, FIG. 11 is a side view, FIG. 12 is a rear view, FIG. 13 is a plan view when an upper lid is opened, FIG. 14 is a side sectional view of FIG. 13, and FIG. 15 is a bottom view of FIG. Represent.

The basic structure of this cap is the same as that of the cap shown in FIGS. 4 to 9 described above. In this embodiment, however, the cap body skirt holding portion is provided like the cap shown in FIGS. Without providing the upper cover as a gripping portion, the guide portion (consisting of the main score 52, the conduction preventing score 53, and the auxiliary score 54 from above) and the circumferential score are broken from above and the cap body skirt portion is broken. This is a notable difference. That is, FIG.
As is clear from FIGS. 2 and 13, the guide portion extends from the side end of one connecting portion 65 of the hinge portion 64 (the left side in the rear view shown in FIG. 12 as viewed in the drawing) to the cap body skirt portion 43. . A circumferential score 50 is provided from the base 65 to the inside of the hinge 64 at the upper end of the skirt 43 (cap body side) and returns to the skirt again. In this embodiment, an axial score 66 connecting the upper part of the hinge connection part and the upper end of the main score is provided at the side end of the connection part 65, but the main score 52 is directly connected to the upper part of the hinge connection part. Is also good. Thus, when the cap body 41 is to be removed from the container mouth after use of the contents, the guide portion 51 is broken by pulling the upper lid 61 in the tearing direction and downward, and then the upper lid 61 is pulled in the horizontal direction. The shape score 50 is broken, and the cap body can be removed from the container mouth.

(Embodiment 4) FIGS. 16 to 21 show an example of the third embodiment of the cap according to the present invention. The cap is fitted to the mouth of the container, and the opening for discharging the contents is provided on the top plate. A cap having a cap body, an outer cylinder for covering the cap body skirt from outside, and an upper lid for covering a top plate of the cap body. 16 is a front view, FIG. 17 is a plan view, FIG. 18 is a bottom view, FIG. 19 is a rear view, FIG. 20 is a right side view in FIG. 16, and FIG. 21 is a sectional view taken along line AA of FIG.

In this embodiment, a slit is provided in the skirt portion of the cap body of the second embodiment described above, and the outer cylinder provided so as to cover the skirt portion from the outside has a guide portion and a guide for breaking the guide portion. The point that a grip portion serving as a clue is provided is different from the above-described two embodiments. That is, the cap generally denoted by 71 generally includes a cap body 72, an outer cylinder 73 connected to the cap body, and an upper lid 74. The cap body 72 includes a top plate portion 75 and a skirt portion 76. The top plate portion includes a portion 78 defined by a score 77, which serves as a content discharging opening, and a tab 79 for forming a discharging opening.
In addition, a pouring nozzle 80 formed so as to surround the pouring opening is provided. In addition, an inner ring 81 is provided on the inner surface of the top plate to be fitted into a container opening (not shown) to maintain the tightness of the container. An engagement protrusion 82 is provided on the inner surface of the skirt portion 76 to engage with the container mouth portion to fix the cap body to the container mouth portion, and the skirt portion 76 is provided with a plurality of slits 83 extending from the lower end in the axial direction. ing.

The outer cylinder 73 is provided integrally with the cap body skirt portion 76 via the bridging portion 84 and is located so as to cover the outer surface of the skirt portion 76. On the outer surface of the outer cylinder 73, a guide portion 85 for breaking the outer cylinder in the axial direction is provided. The scores constituting the guide section 85 are composed of a main score 86, a line prevention score 87, and an auxiliary score 88 obliquely from above, as in the two embodiments described above. Also,
The outer cylinder 73 is provided with a grip portion 89 connected to the main score 86. A notch 90 is provided in the vicinity of the grip portion 89, and the main score 86 is pulled by pulling the grip portion 89 in the tearing direction and downward. , And the guide portion composed of the transmission line prevention score 87 and the auxiliary score 88 is easily broken.

In the cap of this embodiment, the outer cylinder 73
The guide portion 51 is broken by pulling the grip portion 89 provided in the torsion direction and downward, and then the bridging portion 84 connecting the outer cylinder 73 and the skirt portion 76 is broken by pulling the grip portion 89 in the horizontal direction. Then, the outer cylinder 73 is removed from the cap body skirt portion 76. Since the cap body skirt portion 76 is provided with a plurality of slits 83, the cap body can be easily removed from the container opening after the outer cylinder is removed. To cope with this, the cap body skirt portion and the outer cylinder are formed integrally, but as a forming method, such a mold may be used to integrally form the mold.
As described in Japanese Patent Publication No. 400, a cut surface may be provided so as to form the outer surface of the skirt portion and the inner surface of the outer cylinder after molding the cap body and the outer cylinder as one lump. Further, in the specific example shown in the figure, the upper lid is formed separately from the outer cylinder or the cap body and is screwed to the cap body, but of course, it is integrally formed with either the outer cylinder or the cap body via a hinge. It may be an aspect that there is. When provided integrally with the outer cylinder, as in the third embodiment described above, the guide provided on the outer cylinder may be broken using the upper lid as a grip.

In the present invention, it is an important feature that the guide portion is formed as described above. The cap is of a type which is subjected to a tapping operation and breaks the circumferential band in the vertical direction at the time of opening or disposal. If it is, it can apply without being limited to the cap of the above-mentioned mode. Further, in the present invention, the main score is located above the circumferential band, in the oblique direction extending in the tearing direction and extending downward, and is positioned below the circumferential band or the skirt portion. In the diagonal direction, the combination of the auxiliary score shorter than the main score, the short line prevention score located between the main score and the auxiliary score and extending in the circumferential direction is not limited to the specific examples described above, and various combinations are possible. Can also be adopted. For example, a relatively long main score is divided into two parts, upper and lower, and the lower score is moved in parallel, and a line-prevention score connecting the lower end of the upper main score and the upper end of the lower main score is provided. Alternatively, the state may be one step higher than that shown in the above-described figure.

In the present invention, the circumferential score, the main score, the auxiliary score, and the conduction preventing score may be provided on either the inner surface or the outer surface of the circumferential band or the like, and may be provided simultaneously with the molding of the cap. Although it is possible to provide it after the cap is formed, it is of course possible to provide it on the outer surface side in consideration of moldability.

[0031]

According to the present invention, in the cap to be subjected to the tapping operation, the guide provided on the peripheral band or the like has a step extending in the tearing direction and extending downward, and has a diagonal score substantially in the same direction due to a step. The diagonal score comprises an upper main score and a lower auxiliary score shorter than the main score;
Since a short line prevention score extending in the circumferential direction is formed between the main score and the auxiliary score, it is possible to effectively prevent the guide portion from being broken by the tapping operation and open the seal. Alternatively, when the guide portion is intentionally broken at the time of disposal, the guide portion can be easily and reliably broken.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of the cap of the present invention.

FIG. 2 is a plan view of the cap shown in FIG.

FIG. 3 is a partial sectional side view of the cap shown in FIG. 1;

FIG. 4 is a partial side sectional view showing a state where the cap shown in FIG. 1 is applied to a container mouth.

FIG. 5 is a front view of an example of the second embodiment of the cap of the present invention.

FIG. 6 is a side view of the cap shown in FIG.

FIG. 7 is a rear view of the cap shown in FIG. 5;

FIG. 8 is a plan view of the cap shown in FIG. 5 in a state where an upper lid is opened.

FIG. 9 is a side sectional view of the cap shown in FIG. 5 in a state where an upper lid is opened.

FIG. 10 is a bottom view of the cap shown in FIG. 5 in a state where an upper lid is opened.

FIG. 11 is a front view of another example of the second embodiment of the cap of the present invention.

FIG. 12 is a side view of the cap shown in FIG. 11;

FIG. 13 is a rear view of the cap shown in FIG. 11;

14 is a plan view of the cap shown in FIG. 11 in a state where an upper lid is opened.

FIG. 15 is a side sectional view of the cap shown in FIG. 11 in a state where an upper lid is opened.

FIG. 16 is a bottom view of the cap shown in FIG. 11 in a state where an upper lid is opened.

FIG. 17 is a front view of a third embodiment of the cap of the present invention.

18 is a plan view of the cap shown in FIG.

19 is a bottom view of the cap shown in FIG.

20 is a rear view of the cap shown in FIG.

FIG. 21 is a right side view of the cap shown in FIG. 17;

FIG. 22 is a sectional view taken along line AA of FIG. 17;

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Osamu Ishii 2-12 Nagatoro, Hiratsuka-shi, Kanagawa F-term in Hiratsuka Plant of Japan Crown Cork Co., Ltd. 3E084 AA12 AA32 BA01 BA03 CA01 CB01 CB02 CB04 CC03 DA01 DB02 DB09 DB13 DC03 FA03 FA09 FC07 GA06 GA08 GB06 GB08 GB12 GB17 HA03 HB02 HC03 HD01 HD04 KA13 LA05 LA17 LB02

Claims (9)

[Claims] 1. A top plate provided with a sealing portion on an inner surface, a skirt connected to the periphery of the top plate, a circumferential band located below via a circumferential score extending in a circumferential direction, and a circumferential band located below the circumferential band. In a cap having a tear start part and a guide part for tearing up and down, the tear start part has a notch part leading to the circumferential score, and the guide part is stepped extending in a tear direction and downward. Has a diagonal score substantially in the same direction, and the diagonal score comprises an upper main score and a lower auxiliary score shorter than the main score, and a short line extending in the circumferential direction between the main score and the auxiliary score. A cap characterized in that a prevention score is formed. 2. The cap according to claim 1, wherein the tear start portion includes a grip portion having a base for attaching to the circumferential band near the guide portion. 3. The mounting base is inclined downward in the tearing direction and extends downward, a side portion thereof is in contact with the main score, and an upper portion thereof is in contact with a notch portion connected to the circumferential score,
3. The cap according to claim 2, wherein a lower portion thereof is formed so as to be in contact with a transmission line prevention score extending in a circumferential direction. 4. A cap body fitted and fixed to a container mouth, and an upper lid provided on the cap body so as to be openable and closable, wherein the cap body has a top plate part capable of forming a content discharging opening and a top plate part. A cap having a skirt portion extending from a peripheral edge of the top plate portion, a circumferential score for cutting the skirt portion in a circumferential direction, a guide portion for cutting the skirt portion up and down, and a tearing start portion; The portion has a stepped diagonal score extending in the tearing direction and downward and having substantially the same diagonal score. The diagonal score is composed of an upper main score and a lower auxiliary score shorter than the main score. A short wire-prevention score extending in the circumferential direction is formed between the cap and the cap. 5. The cap according to claim 4, wherein the tear start portion includes a grip portion having a base for attachment to a skirt portion near the guide portion. 6. The upper lid and the cap body are connected by a hinge, a root portion of the hinge connection portion on the skirt side becomes a tearing start portion, and the circumferential score is at least from the tearing start portion to the cap body. The cap according to claim 4, wherein the cap is formed inside the hinge connection portion. 7. A cap body comprising a top plate portion fitted and fixed to a container mouth portion and capable of forming an opening for discharging contents, and a skirt portion extending from a peripheral portion of the top plate portion, and the cap body can be opened and closed. A cap, and an outer cylinder integrally provided on the cap body via a bridging portion and covering an outer surface of the cap body. Parts provided at intervals in the circumferential direction, and provided with a tearing start part and a guide part for cutting the outer cylinder up and down, wherein the guide part is substantially the same as a step extending in the tearing direction and downward. Direction diagonal score, wherein the diagonal score is composed of an upper main score and a lower auxiliary score shorter than the main score, with a short circumferential line extending between the main score and the auxiliary score extending in the circumferential direction. Cap, characterized in that the score is formed. 8. The method according to claim 7, wherein the tear start portion comprises a grip portion provided near the guide portion.
The cap described. 9. The cap according to claim 7, wherein the upper lid and the outer cylinder are connected by a hinge, and a root portion of the outer cylinder of the hinge becomes a tearing start portion.