JP2001233365A - Tamper-evident cap device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a conventional tamper-evident cap device has a large width of a tamper-evident ring since hooks and stopper protrusions of the ring are provided vertically at a distance. SOLUTION: The tamper-evident cap device comprises the hooks 5 and the stopper protrusions 9 provided along approximately the same circumference on an inner periphery of the tamper-evident ring 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tamper-evident cap device provided with a tamper-evident ring having an opening history indicating function.

[0002]

2. Description of the Related Art As shown in FIG. 13 or FIG. 14, a tamper evidence ring 110 is connected to a skirt portion 102 of a cap body 101 via a bridge portion 103, and the cap body 101 is attached to a container neck portion 104. At this time, the hook claw 105 provided on the tamper evidence ring 110 is fitted to a position where it can be engaged with the locking claw 106 provided on the container neck, and the cap main body 101 is inserted from the container neck 104.
When the tamper shredder 105 is detached from the lower end of the skirt 102, the hook 105 engages with the locking claw 106 to cut the bridge 103, and the tamper evidence ring 110 is detached from the lower end of the skirt 102. The dent cap device
Conventionally, it is known, for example, as described in JP-A-9-150846.

In both cases of FIGS. 13 and 14, the outer peripheral portion of the tamper evidence ring 110 has substantially the same outer shape as the lower end portion of the skirt portion 102 of the cap body 1 and does not protrude largely outward. As described above, the bridge portion 103 connecting the skirt portion 102 of the cap body 101 and the tamper evidence ring 110 is
Inner circumference of lower end of 2 and tamper evidence ring 11
0 is provided on the inner peripheral side of the upper end.

[0004] In FIG. 13, the tamper-evident ring 110 has a retaining projection 109 abutting against a retaining projection 111 provided on the container neck 104 at an upper side located above the hooking claw 105. The tamper-evident ring 110 is provided so as to be detached from the lower end of the skirt 102 so as not to easily fall off the detached position of the container neck. In the tamper evidence ring 110 of FIG. 14, a retaining projection 109 is provided on the lower side located below the hooking claw 105, and the retaining claw 106 of the container neck 104 is provided on the upper portion. It is configured such that it does not come off easily from the detached position of the container neck by contacting the projection 111.

[0005]

As described above, in the conventional tamper-evident cap device, as shown in FIG. 13 or FIG. 14, the hook claw 105 and the retaining projection 109 of the tamper-evident ring 110 are vertically moved. , There is a problem that the width of the tamper evidence ring 110 becomes large.

Further, as shown in FIG. 13 or FIG. 14, when the cap body 101 is detached from the container neck 104, the tamper evidence ring 110 is connected to the skirt portion 102 of the cap body. The cap opening history is clearly indicated by the detachment from the lower end portion of the cap body, and the consumer is warned that there is a possibility that mischief or the like may be given to the cap device. Tamper evidence ring 11 detached from the lower end of skirt 102
0, so that you can see that it is clearly detached,
The cap body 101 needs to be sufficiently far away from the lower end of the skirt 102.

For this reason, in this kind of tamper-evident cap device, the tamper-evident ring 110 provided on the skirt portion 102 of the cap body 101 attached to the container neck 104 has the skirt portion 102 below it.
Large separation distance 1 required for sufficient separation from the lower end of the
07, it is necessary to increase the width of the tamper evidence ring 110, so that the separation interval 107 is inevitably increased, and the container neck 104 is separated from the lower end of the skirt 102 of the cap body 101. There is a problem that the distance to the protrusion 112 also becomes large.

[0008]

SUMMARY OF THE INVENTION Accordingly, the present invention has a tamper-evident ring connected to a skirt portion of a cap body via a bridge portion, and has a retaining projection when the cap body is mounted on a container neck. The tamper-evidence ring is fitted over the container neck portion over the retaining projection provided on the container neck portion, and the hook claw portion provided on the tamper evidence ring is engaged with the locking claw portion provided on the container neck portion. When the cap body is detached from the container neck, the hooking claw engages with the locking claw to cut off the bridge, and the tamper evidence ring is moved from the lower end of the skirt. In a tamper-evident cap device configured to be detached to a position where it can be easily viewed, the hook claw and the retaining protrusion are provided on substantially the same circumference as the inner periphery of the tamper-evident ring. There is provided a down par-evident cap device.

According to the present invention, in the tamper-evident cap device wherein the tamper-evident ring is detached from the lower end of the skirt to a position where the tamper-evident ring can be easily visually recognized, the inner periphery of the tamper-evident ring is substantially removed. By providing the hanging claw and the retaining projection on the same circumference, the width of the tamper evidence ring can be configured to be small and narrow because the hanging claw and the retaining projection do not overlap with each other up and down. In addition, the separation interval corresponding to the falling distance of the tamper evidence ring can be designed to be small, and the interval between the lower end of the skirt portion and the separation positioning projection can be reduced.

According to the present invention, in the tamper-evident cap device according to the first aspect, the hooking claw portion and the retaining protrusion of the tamper-evident ring are alternately arranged at a constant angular interval about the rotation center axis of the cap body. The present invention provides a tamper-evident cap device provided in the above. According to the present invention, the hooking claw portions and the retaining protrusions are alternately provided at regular angular intervals, so that the hooking claw portions and the retaining protrusions can be easily arranged on substantially the same circumference.

According to the present invention, there is provided a tamper-evident cap device according to claim 1 or 2, wherein a notch portion for separating a hooking claw portion of the tamper-evident ring from a retaining protrusion is provided on a counter-rotating rotary side. An object of the present invention is to provide a tamper-evident cap device having an end portion serving as a hook portion of a tamper-evident ring. According to the present invention,
The hanging claw portion of the tamper evidence ring can be formed by the notch separating the hooking claw portion of the tamper evidence ring and the retaining projection.

The present invention also provides a tamper-evident cap device according to any one of claims 1 to 3,
An object of the present invention is to provide a tamper-evident cap device in which a hook portion of a tamper-evident ring protrudes from a retaining projection. ADVANTAGE OF THE INVENTION According to this invention, a hooking claw part of a tamper evidence ring is provided so that it may protrude from a retaining protrusion, and a hooking claw part can be easily engaged with the locking claw part provided in the container neck part. In addition, even if the hooking claw and the retaining projection are provided in an overlapping manner, the hooking claw can be engaged with the locking claw.

The present invention also provides a tamper-evident cap device according to any one of claims 1 to 4,
An object of the present invention is to provide a tamper-evident cap device in which an insertion recess is provided in a retaining projection of a container neck portion, and a hook portion of a tamper-evidence ring fits into the insertion recess when a cap is attached. According to the present invention, when the cap is attached, the hooking claw portion of the tamper evidence ring is fitted into the insertion recess, so that the hooking claw portion can be provided so as to protrude accordingly.

The present invention also provides a tamper-evident cap device according to any one of claims 1 to 5,
An object of the present invention is to provide a tamper-evident cap device in which a retaining projection of a container neck is formed in a thin flange shape through a step on an upper surface of a thick base to which a tamper-evident ring is loosely fitted. ADVANTAGE OF THE INVENTION According to this invention, while being able to aim at the simplification of the structure of a retaining projection part, and saving of material, the latching nail part which the hooking nail part provided in the tamper evidence ring on the outer periphery of a thick base engages Can be provided.

Further, the present invention provides a tamper-evident cap device according to any one of claims 1 to 6,
An object of the present invention is to provide a tamper-evident cap device in which a notch concave portion is provided in a skirt portion of a cap body that comes into contact with an upper surface of a retaining projection of a container neck. According to the present invention, the provision of the notch recess in the skirt portion of the cap body can save material, and the bridge portion and the interlocking projection can be provided using the notch recess.

Further, the present invention provides a tamper-evident cap device according to claim 7, wherein a bridge portion is provided in a cutout concave portion of a skirt portion. According to the present invention, the gap between the skirt portion and the tamper evidence ring can be made small and narrow by providing the bridge portion in the notch concave portion in the skirt portion of the cap body abutting on the retaining projection portion of the container neck portion. it can.

According to the present invention, there is provided a tamper-evident cap device according to claim 7 or 8, wherein an interlocking projection is provided at a notch portion of the tamper-evident ring, and the interlocking projection is connected to a skirt portion of the cap body. And a tamper-evident cap device provided to face the notch recess wall of the skirt portion on the tightening rotation side in the notch recess. According to the present invention, by providing the interlocking projection of the tamper evidence ring in the notch recess of the skirt portion of the cap body so as to interlock with the notch recess wall of the skirt portion on the tightening rotation side, the cap is provided. An interlocking projection for preventing the bridge portion from being cut at the time of mounting can be provided with a simple structure with a small gap between the skirt portion and the tamper evidence ring.

According to the present invention, there is provided a tamper-evident cap device according to claim 7, 8 or 9, wherein the notch recessed portion of the skirt portion of the cap body comes into contact with the notched recessed wall on the rotation side. An object of the present invention is to provide a tamper-evident cap device in which a stopper is provided on a projection. ADVANTAGE OF THE INVENTION According to this invention, when attaching a cap, the notch recessed part of the skirt part of a cap main body can contact the stopper provided in the retaining projection part, and can prevent forcible tightening.

Further, the present invention provides a tamper-evident cap device according to claim 10, wherein a hook provided on the tamper-evident ring is engaged with the container neck to cut the bridge. It is an object of the present invention to provide a tamper-evident cap device in which a stop claw portion and a stopper provided on the retaining protrusion are integrally provided at the same position at the rotational center angle position of the cap body. According to the present invention, when the cap is attached, the skirt portion of the cap body comes into contact with the stopper of the retaining projection and stops when the hook portion of the tamper evidence ring exceeds the locking claw portion of the container neck. When the cap is detached, the hooking claw of the tamper evidence ring can be immediately engaged with the locking claw of the container neck, and the bridge can be cut by a slight detachment operation.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in the figure, the tamper-evident cap device according to the present invention connects the tamper-evident ring 10 to the skirt portion 2 of the cap body 1 via the bridge portion 3 and mounts the cap body 1 on the container neck 4. When the hook claw portion 5 provided on the tamper evidence ring 10 is engaged with a position where it can be engaged with the locking claw portion 6 provided on the container neck portion 4, and when the cap body 1 is detached from the container neck portion 4, The hook 3 is engaged with the locking claw 6, the bridge 3 is cut, and the tamper evidence ring 10 is detached from the lower end of the skirt 2 to a detached position that can be easily visually recognized. is there.

In the case of the embodiment, when the cap main body 1 is mounted on the container neck 4, the skirt 2 of the cap main body 1 comes in contact with the container neck 4 to prevent the cap from completing the mounting. 12, while the bridge portion 3 is positioned outside the retaining protrusion 12.
Is provided between the cap body 1 and the tamper evidence ring 10. In the case of the embodiment, the lower end portion 13 of the skirt portion 2 is provided wide outward like a skirt, and the inner peripheral portion 14 of the lower end portion 13 of the skirt portion 2 is formed as shown in FIGS. The bridge portion 3 is provided outside the inner peripheral portion 14 of the lower end portion 12 of the skirt portion 2 so as to abut the retaining projection 12 of the container neck portion 4. Further, the bridge portion 3 has a thicker and stronger connecting portion side with the skirt portion 2 and a thinner and weaker connecting portion 15 on the tamper evidence link 10 side so that the bridge portion 3 remains on the skirt portion 2 side when cut. .

According to the above-described embodiment, when the cap body 1 is mounted on the container neck 4, the skirt portion 2 of the cap main body 1 is used to prevent the cap provided on the container neck 4 from completing the mounting of the cap. Abuts the cap body 1
Of the cap body 1 can be prevented, and the cap body 1 can be prevented from being forcibly attached to the cap body 1 by idling. When the cap body 1 is in contact with the portion 12, the connection between the cap body 1 and the tamper evidence ring 10 can be maintained by the bridge portion 3 located outside thereof.

A non-slip knurl 16 is provided on the outer wall of the skirt 2 of the cap body 1.
A screw portion 17 is provided on the inner periphery. The cap body 1 of the embodiment includes a bridge portion 3 and a tamper evidence ring 10.
, And the screw portion 17 is provided with a low thread due to the cutting die. Further, the container neck 4 is attached to the lower mounting portion 1 of the container mounting flange 18.
9 is provided at the upper end of a straw body 20 of a container in which a flexible pack bag is integrally attached.
Double screw portions 21 are provided at 80 ° intervals.

Further, the top plate 25 of the cap body 1 is provided with an inner lid portion 22, and as shown in FIG.
In a state in which the cap body 1 is attached to the container neck 4 with the screw 7 and the screw portion 21 screwed together, the inner lid portion 22 is fitted in the opening 23 thereof in close contact with the elastic deformation of the container neck 4, and the cap When the leak prevention projection 24 of the top plate 25 of the main body 1 comes into contact with the top of the opening 23, at the same time, the lower end 13 of the skirt 2
Is configured to contact the upper surface of the retaining projection 12 of the container neck 4. When the cap body 1 is attached to the container neck 4, the container neck 4 is provided with a separation positioning protrusion 26 below the tamper evidence ring 10 at a sufficient separation interval 7.

Further, on the inner peripheral portion of the tamper evidence ring 10, there is provided a retaining projection 9 which comes into contact with the retaining projection 12 provided on the container neck 4 and is prevented from falling off. When the cap body 1 is mounted, the tamper-evidence ring 10 is used to remove the tamper-evident ring provided on the container neck 4 from the tamper-evident ring. When the cap main body 1 is detached from the container neck 4 while being overcome with the elastic deformation of the container, the retaining projection 9 of the tamper-evidence ring 10 is provided on the container neck 4. The stopper projection 12 is configured to come in contact with the stopper projection 12 to be prevented from falling off.

In the case of the embodiment, the retaining projection for the tamper evidence ring provided on the container neck 4 is provided integrally with the positioning projection on which the lower end 13 of the skirt 2 abuts. That is, in the case of the embodiment, the retaining projection for retaining the tamper evidence ring 10 is the skirt 2.
Are formed in the same manner as the positioning projections with which the lower end portions 13 thereof abut. Accordingly, in the embodiment, the retaining projection 9 of the tamper evidence ring 10 is configured so as to be in contact with the retaining projection 12 as the positioning projection of the skirt provided on the container neck 4 so as to be prevented from falling off. is there.

Further, the retaining projections 12 are shown in FIGS.
As shown below the lower end portion 13 of the left skirt portion 2 in FIG. 11, FIG. 11 or FIG. 3, a thin flange shape is formed via a step on the upper surface of the thick base portion 28 in which the tamper evidence ring 10 is loosely fitted. It is molded as a portion 29, which can simplify the structure of the retaining projection 12 also serving as a positioning projection integrally provided and save material, and also provides a tamper evidence ring on the outer periphery of the thick base 28. It is configured such that a locking claw portion 6 with which the hooking claw portion 5 provided on 10 is engaged can be provided.

That is, as shown in FIG. 5, the hooking claws 5 are alternately provided on the inner periphery of the tamper evidence ring 10 together with the retaining projections 9 on substantially the same circumference. 5 is when the cap body 1 is detached from the container neck 4
The rotation of the tamper-evident ring 10 is prevented by contacting the locking claw 6 provided on the container neck 4, the bridge 3 is torn, and the tamper-evidence ring 10 is disengaged from the container neck 4.
Detachable positioning projection 26 on the lower side of the retaining projection 12
It is configured to be left behind.

Further, in the case of the embodiment, the retaining projection 9 of the tamper evidence ring 10 is formed as shown in FIG.
1 around the rotation center axis of the cap body 1
Cutouts 27 at constant angular intervals at two locations at 80 ° intervals
Are provided at one end of the cutout portion 27, and the hooking claws 5 are provided in the detaching rotation direction of the cap body 1. Also, while the retaining projection 9 of the tamper evidence ring 10 is provided along the center of the inside of the ring, the hooking claw 5 is provided on the cap body 1 as shown in FIGS. The tamper-evident ring 10 provided with the bridge portion 3 is provided with a bias toward the upper edge side toward the skirt portion 2 so that the play on the upper surface of the tamper evidence ring 10 is reduced to ensure that the bridge portion 3 is shredded.

As shown in FIGS. 9 to 11, the retaining projection 12 is formed at an angle of 180 ° with a notch space 31 interposed therebetween.
It is provided on the lower side of the detachable positioning projection 26 so that the hook 3 of the tamper evidence ring 10 engages with the downstream end in the cap tightening direction to cut the bridge 3. The locking claw portion 6 is provided in the vertical and vertical directions. Further, as shown in FIGS. 9 to 11, the retaining protrusions 1 provided at 180 ° intervals through the notch space 31.
A stopper 30 for stopping the skirt portion 2 of the cap body in contact with the locking claw portion 6 is provided at substantially the same position as the locking claw portion 6 at the end of the cap body 2. The stopper 30 at the end of the retaining projection 12 when the
The skirt portion 2 of the cap body 1 comes into contact with and stops, and when the cap is detached, the hooking claw portion 5 of the tamper evidence ring 10 immediately engages with the locking claw portion 6 of the container neck portion 4, and by a slight detaching operation, The bridge portion 3 is configured to be cut.

In the apparatus according to the present invention, as shown in FIG. 6, the skirt portion 2 of the cap body 1 abutting against the retaining projection 12 of the container neck 4 is rotated by 180 degrees around the rotation center axis of the cap body 1. The gap between the skirt portion 2 and the tamper evidence ring 10 is reduced by symmetrically providing the small notch recesses 32 and the large notch recesses 33 at intervals of ° and providing the bridge portions 3 in the notch recesses 32, 33. It is configured to be small and narrow.

In the large cutout recess 33 of the skirt portion 2 of the cap body 1, an interlocking projection 35 projecting from the upper edge of the tamper evidence ring 10 is provided as shown in FIG. 4 or FIG. The cap body 1 is provided in the notch recess 33 of the skirt portion 2 of the cap body 1 so as to abut against and interlock with the notch recess wall 34 located on the tightening rotation side. And the interlocking projection 35 abuts and rotates to prevent the bridge portion 3 from being cut, and the interlocking projection 35 can be formed in a simple structure with the skirt portion 2 and the tamper evidence ring 1.
It is configured so that it can be provided while keeping the interval with 0 small and narrow.

As shown in FIG. 4, the interlocking projection 35 is provided with a contact surface 36 at right angles to the notch recess wall 34 in the direction of tightening, but on the opposite side, an inclined surface 37 is provided.
In the tightening direction, the notch recessed wall 34 and the contact surface 36 abut and rotate integrally, and when the cap is removed, the wall surface on the opposite side of the notch recessed wall 34 is inclined 37
The tamper-evident ring 10 is configured to act to depress and separate even if the tamper-evident ring 10 comes into contact with the ring. The notch recess wall 34 on the tightening rotation side of the notch recess 33 is configured to abut against the stopper 30 provided on the retaining projection 12 at the time of fastening.

In the above configuration, when the cap body 1 is mounted on the container neck 4, as shown in FIG. 3, the tamper-evident ring 10 causes the retaining protrusion 12 of the container neck 4 to be elastically deformed. Get over, cap body 1
The skirt 2 is mounted at a position where the lower end 13 of the skirt 2 comes into contact with the retaining projection 12. At this time, even if the tamper evidence ring 10 comes into contact with the retaining protrusion 12 and receives resistance, the notch recessed wall 34 of the skirt 2 and the interlocking projection 35 of the tamper evidence ring 10 come into contact and rotate integrally. However, the bridge portion 3 can be mounted smoothly without cutting.

When the skirt portion 2 of the cap body 1 comes into contact with the retaining projection 12 of the container neck 4, the bridge portion 3 is located outside the cap body 1 so that
The tamper-evident ring 10 can be mounted while maintaining its connection. Next, as shown in FIGS. 1 and 2, when the cap body 1 is detached, the hook 5 of the tamper evidence ring 10 engages with the locking claw 6 of the container neck 4 so that the cap The tamper evidence ring 10 is stopped with respect to the main body 1, the bridge portion 3 is cut apart, the tamper evidence ring 10 falls on the detaching positioning projection 26, and only the cap body 1 is detached. . On the inner periphery of the tamper evidence ring 10, the retaining projection 9 and the hook 5 are provided on substantially the same circumference, and the width thereof can be reduced.
Even when the distance between the lower end portion 13 of the skirt portion 2 and the detachable positioning projection 26 is reduced when the cap body 1 is mounted,
The separation interval 7 of the tamper evidence ring 10 can be sufficiently set.

[0036]

As described above, according to the tamper-evident cap device of the present invention, when the tamper-evident ring is connected to the skirt portion of the cap body via the bridge portion and the cap body is attached to the container neck portion. A tamper-evident ring having a retaining projection is fitted over the container neck over the retaining projection provided on the container neck, and a hook claw provided on the tamper evidence ring is provided on the container neck. To the position where it can engage with the locking claw part,
When detaching the cap body from the container neck, the hooking claw is engaged with the locking claw to cut the bridge, and the tamper evidence ring is detached from the lower end of the skirt to a position where it can be easily visually recognized. In the tamper-evident cap device, the tamper-evident ring is provided with the hooking claw and the retaining projection on substantially the same circumference as the inner periphery of the tamper-evident ring. In the tamper-evident cap device configured to be easily detached from the lower end of the tamper-evident ring, the hooking claw portion and the retaining protrusion provided on substantially the same circumference of the inner periphery of the tamper-evident ring are provided. Since the tamper-evidence ring does not overlap vertically, the width of the tamper-evidence ring can be made smaller and narrower. It is possible to design a small detachment interval falls below the distance, the effect of spacing can also be reduced with the withdrawal positioning projections skirt lower end.

Further, according to the present invention, in the tamper-evident cap device according to the first aspect, the hooking claw portion and the retaining protrusion of the tamper-evident ring are alternately arranged at a constant angular interval about the rotation center axis of the cap body. Has an effect that the hook claw and the retaining projection can be easily arranged on substantially the same circumference.

According to the present invention, there is provided a tamper-evident cap device according to claim 1 or 2, wherein a notch separating a hooking portion of the tamper-evident ring from a retaining protrusion is provided on a counter-tightening rotation side. By having a configuration in which the end portion serves as a hook portion of the tamper evidence ring, the hook portion of the tamper evidence ring is formed by a notch separating the hook portion of the tamper evidence ring and the retaining projection. There is an effect that it can be easily formed.

The present invention also provides a tamper-evident cap device according to any one of claims 1 to 3,
With the configuration in which the hooking claw of the tamper evidence ring is provided so as to protrude from the retaining projection, the hooking claw can be reliably engaged with the locking claw provided on the container neck. Even if the hooking claw and the retaining protrusion overlap each other, there is an effect that the hooking claw can be easily engaged with the locking claw.

The present invention also provides a tamper-evident cap device according to any one of claims 1 to 4,
An insertion recess is provided in the retaining projection of the container neck, and the hook claw of the tamper evidence ring is fitted into the insertion recess when the cap is attached, so that the hook claw protrudes by itself. There is an effect that can be provided.

The present invention also provides a tamper-evident cap device according to any one of claims 1 to 5,
By having a configuration in which the retaining projection of the container neck is formed into a thin flange shape via a step on the upper surface of the thick base where the tamper evidence ring loosely fits, the structure of the retaining projection is improved. The simplification and the saving of the material can be achieved, and there is an effect that the locking claw portion provided on the outer periphery of the thick base can be securely engaged with the hook claw portion provided on the tamper evidence ring.

Further, according to the present invention, there is provided a tamper-evident cap device according to any one of claims 1 to 6,
By providing a cut-out recess in the skirt portion of the cap body abutting on the upper surface of the retaining protrusion of the container neck, material can be saved, and a bridge portion and an interlocking protrusion can be made using the cut-out recess. And the like can be provided.

Further, according to the present invention, in the tamper-evident cap device according to the seventh aspect, a long bridge portion can be provided by providing a structure in which the bridge portion is provided in the cutout concave portion of the skirt portion. Along with
There is an effect that the distance between the skirt portion and the tamper evidence ring can be made small and narrow.

According to the present invention, in the tamper-evident cap device according to claim 7 or 8, an interlocking projection is provided at a notch of the tamper-evident ring, and the interlocking projection is connected to a skirt portion of the cap body. In the notch concave portion, the interlocking protrusion for preventing the bridge portion from being cut off when the cap is mounted is simplified by interposing the notch concave wall of the skirt portion on the tightening rotation side so as to interlock with the notch concave wall. The structure has an effect that the space between the skirt portion and the tamper evidence ring can be provided while keeping it small and narrow.

According to the present invention, in the tamper-evident cap device according to claim 7, 8 or 9, the stopper for contacting the notch recess wall of the cap body on the rotation side by tightening the notch recess of the skirt portion. By having a configuration in which the stopper is provided on the projection, the notch concave part of the skirt part of the cap body contacts the stopper provided on the retaining projection when the cap is attached, preventing excessive tightening. There is an effect that can be.

According to the present invention, there is provided a tamper-evident cap device according to claim 10, wherein a hook provided on the tamper-evident ring is engaged with the container neck so as to cut the bridge. The stop claw portion and the stopper provided on the retaining protrusion are integrally provided at substantially the same position at the rotation center angle position of the cap body, so that the claw of the tamper evidence ring is attached when the cap is mounted. When the cap exceeds the locking claw of the container neck, the skirt of the cap body comes into contact with the stopper of the retaining projection and stops, so when the cap is removed, the hook of the tamper evidence ring is The bridging portion can be immediately engaged with the locking claw portion, and there is an effect that the bridge portion can be cut by a slight detachment operation.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a main part showing a use mode of an embodiment of the device of the present invention.

FIG. 2 is an explanatory view of a main part showing a use mode of an embodiment of the apparatus of the present invention.

FIG. 3 is an explanatory longitudinal sectional view of a main part of an embodiment of the apparatus of the present invention.

FIG. 4 is a vertical sectional front view of a cap body according to an embodiment of the present invention.

FIG. 5 is an explanatory plan view of a tamper evidence ring according to an embodiment of the present invention.

FIG. 6 is an explanatory bottom view of a lower end of a skirt portion of a cap body according to an embodiment of the present invention.

FIG. 7 is an explanatory sectional view of a main part of a cap body according to an embodiment of the present invention.

FIG. 8 is an explanatory cross-sectional view of another main portion of the cap body of the embodiment of the device of the present invention.

FIG. 9 is a front view of a main part of a container according to an embodiment of the present invention.

FIG. 10 is a side view of a main part of FIG. 9;

FIG. 11 is an explanatory plan view of a main part of FIG. 9;

FIG. 12 is an explanatory plan view of another main part of FIG. 9;

FIG. 13 is an explanatory sectional view of a main part of an embodiment of a conventional apparatus.

FIG. 14 is an explanatory sectional view of a main part of another embodiment of the conventional device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cap main body 2 Skirt part 3 Bridge part 4 Container neck part 5 Hanging claw part 6 Locking claw part 7 Separation interval 8 Screw part 9 Retaining projection 10 Tamper evidence ring 11 Retaining projection 12 Positioning projection 13 Positioning projection 13 Lower end portion 14 Inner peripheral portion of skirt portion 15 Connection portion of bridge portion with tamper-evident ring 16 Knurl 17 Screw portion 18 Container mounting flange portion 19 Mounting portion 20 Straw body 21 Screw portion 22 Inner lid portion 23 Opening 24 Leak prevention Projection 25 Top plate 26 Separation positioning projection 27 Notch of retaining projection 28 Thick base 29 Thin flange 30 Stopper 31 Notch void 32 Notch recess of skirt 33 Notch of skirt Recess 34 Notch recess wall 35 Interlocking projection 36 Abutment surface of interlocking projection 37 Slant surface of interlocking projection DESCRIPTION OF SYMBOLS 101 Cap main body 102 Skirt part 103 Bridge part 104 Container neck part 105 Hanging claw part 106 Locking claw part 107 Separation interval 108 Screw part 109 Detachment convex part 110 Tamper evidence ring 111 Detachable projection part 112 Detachable positioning projection part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 BA01 CA01 DA01 DB06 DB12 FA09 FB01 GA04 GB04 GB08 KA13 LA05 LA17

Claims (11)

[Claims] 1. A tamper evidence ring is connected to a skirt portion of a cap body via a bridge portion, and when the cap body is mounted on a container neck, a tamper evidence ring having a retaining projection is attached to the container neck portion. Fits into the container neck over the provided retaining projection,
Further, when the hook claw provided on the tamper evidence ring is fitted to a position where it can be engaged with the locking claw provided on the container neck, the hook claw is engaged when the cap body is detached from the container neck. In a tamper-evident cap device configured to engage with the pawl portion, cut the bridge portion, and separate the tamper-evident ring from the lower end of the skirt portion to a position easily visible, the tamper-evidence ring includes A tamper-evident cap device in which the hook and the retaining projection are provided on substantially the same inner circumference. 2. The tamper-evident cap device according to claim 1, wherein the hooks of the tamper-evident ring and the retaining projections are alternately provided at a constant angular interval about the rotation center axis of the cap body. Evidence cap device. 3. The tamper-evident cap device according to claim 1, further comprising: a notch separating the hooking portion of the tamper-evident ring from the retaining protrusion; and a notch-rotating side of the notch. A tamper-evident cap device in which the notched end of the tamper-evident ring is a hook for a tamper-evident ring. 4. The tamper-evident cap device according to claim 1, wherein the hook portion of the tamper-evident ring protrudes from the retaining projection. 5. The tamper-evident cap device according to claim 1, wherein an insertion recess is provided in the retaining projection of the container neck, and the hook of the tamper-evident ring is provided when the cap is mounted. A tamper-evident cap device adapted to fit into the insertion recess. 6. The tamper-evident cap device according to claim 1, wherein the retaining projection of the container neck is provided with a step on the upper surface of the thick base to which the tamper-evident ring is loosely fitted. A tamper-evident cap device molded into a thin and thin flange. 7. The tamper-evident cap device according to claim 1, wherein a notch concave portion is provided in a skirt portion of a cap body that contacts an upper surface of a retaining projection of a container neck. Dent cap device. 8. The tamper-evident cap device according to claim 7, wherein a bridge portion is provided in a cutout recess of the skirt portion. 9. The tamper-evident cap device according to claim 7, wherein an interlocking projection is provided at a notch of the tamper-evident ring, and the interlocking projection is formed by a notch in a skirt portion of the cap body. The tamper-evident cap device is provided in such a manner that the tamper-evident cap device is provided so as to interlock with the notch concave wall of the skirt portion on the tightening rotation side. 10. The tamper-evident cap device according to claim 7, 8 or 9, wherein a stopper is provided on the retaining protrusion that comes into contact with a notch concave wall on a rotation side for tightening a notch concave of a skirt portion of the cap body. A tamper-evident cap device provided opposite to each other. 11. The tamper-evident cap device according to claim 10, wherein a locking claw provided on the container neck portion is engaged with a hook claw provided on the tamper-evident ring to cut the bridge. A tamper-evident cap device, wherein a stopper provided on the retaining projection is integrally provided at the same position at the rotational center angle position of the cap body.