JP2001146245A - Combined member of spout and cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combined member of a spout and a cap in which a ring is not deformed by an inertia force of fastening operation, a thin-walled segment is not damaged when the cap is fastened, the cap is shallowly installed at the spout before peeling off a seal member from the spout and the cap can be deeply installed at the spout after the seal member is peeled off from the spout. SOLUTION: This invention is comprised of a cylindrical spout with a male thread and a cylindrical cap with a female thread engaged with a male thread at the spout and set at this port. The cap has a cap main body and a ring connected to the cap main body via a thin-walled segment. This combined member of the spout and the cap is comprised of a plurality of ring ratchets spaced apart by a predetermined clearance at the inner surface of the ring. The outer surface of the is provided with a first engagement segment engaged with the ring ratchets to stop an operation of the ring in its closing direction, a second engagement segment engaged with the ring ratchets to stop an operation of the ring in its opening direction, and a ring ratchet receiving segment at an operator's side position of the engagement segment in respect to the rotating direction when the cap is fastened to prevent the ring from being deformed while being contacted with the lower surface of the ring ratchet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination of a spout and a cap, and more particularly to a combination of a spout and a cap capable of easily confirming that the cap has been removed from the spout.

[0002]

2. Description of the Related Art Conventionally, a flexible container containing, for example, drinking water therein is known. A spout is attached to the flexible container, and a cap is screwed into the spout. In this case, the cap is the cap body,
A ring connected to the cap body via a thin portion.

When the cap is removed from the spout, the ring of the cap is fixed to the spout, the thin portion is broken, the cap body and the ring are separated, and only the cap body is removed from the spout.

[0004] When the cap is detached, the cap body and the ring are separated from each other, so that the removal of the cap can be confirmed from the outside.

[0005]

In order to fill the contents and prevent leakage of the contents from the spout, at the stage of attaching a sealing material to the upper end of the spout and tightening the cap,
When the cap is tightened, the stopper of the main body and the ring stopper engage as shown in FIG. 1A, and the cap cannot be closed any more. However, when capping is performed with an auto screwdriver (normal capper), a force for further tightening is exerted by inertial force despite the already engaged state. The ring of the cap is in a locked state, and it is originally desirable to be in the state shown in FIG. 8A. However, when the cap is mounted using an auto driver, the cap body is subjected to a further rotating force. Therefore, the ring is deformed as shown in FIG. 8 (b) by receiving a force between the encircling claw of the cap and the stopper. And the thin part which connects a cap main body and a ring may be broken. Therefore, conventionally, the thin portion is made thick so that the thin portion is not cut off even if the ring is deformed. If the thin portion is made thicker, the ring breaks poorly when opening, and opening becomes difficult. Also, when tightening the cap, before peeling the sealing material from the upper end of the spout, attach the cap shallowly to the spout so that the sealing material does not break due to the inner ring of the cap, and after peeling the sealing material from the upper end of the spout In order to improve the sealing performance between the spout and the cap, it is necessary to mount the cap deeply in the spout and sufficiently rub the inner surface of the spout with the inner ring of the cap.

The present invention has been made in view of the above points, and when the cap is tightened, the ring is not deformed due to the inertial force of the tightening, so that the thin portion is not broken, and the spout port is provided. The present invention provides a combination of a spout and a cap in which the cap is mounted shallowly on the spout before peeling the seal material from the spout and the cap can be deeply mounted on the spout after peeling the seal material from the spout. The purpose is to:

[0007]

SUMMARY OF THE INVENTION The present invention comprises a cylindrical spout having a male thread, a cylindrical cap having a female thread for engaging the male thread of the spout, and having a cylindrical cap mounted on the spout. The cap has a cap body and a ring connected to the cap body via a thin portion, a plurality of ring ratchets are provided at predetermined intervals on the inner surface of the ring, and the outer surface of the spout engages with the ring ratchet. A first locking portion that locks the operation of the ring in the closing direction, a second locking portion that engages with the ring ratchet to lock the operation of the ring in the opening direction, and a rotation direction when the cap is tightened. On the other hand, there is provided a combination of a spout and a cap, wherein a ring ratchet receiving portion for contacting the lower surface of the ring ratchet and preventing deformation of the ring is provided at a position before the first locking portion. In addition, a sealing material is attached to the upper end of the spout, and a space is formed in the cap so that the upper end of the spout can enter, and the upper end of the spout is the space of the cap when the ring ratchet is engaged with the first locking portion. May be configured to be located immediately before. Furthermore, a circumferential projection is provided on the lower edge of the ring so as to protrude inward, and a stopper is provided on the outer surface of the spout to engage with the circumferential protrusion of the ring in the axial direction. be able to. According to the present invention, when the cap is mounted, the cap ring is rotated in the closing direction with respect to the spout. In this case, the ring ratchet provided on the ring of the cap rides over the second locking portion of the spout and engages with the first locking portion to lock the ring in the closing direction. However, when the cap is tightened by an automatic screwdriver or a device used for actually mounting the cap, inertia acts to deform the ring. FIG. 8B
As shown in (1), it was found that the ring deformed upward on the near side where the counter-rotating claw was in contact, and downward on the point where the counter-rotating claw was in contact.
Therefore, in order to prevent the thin portion, which is a connecting portion, from being broken by the deformation, the outer surface of the spout is located at a position just before the first locking portion with respect to the rotation direction at the time of tightening the cap, and is located on the lower surface of the ring ratchet. By providing the ring ratchet receiving portion at the contact height, the ring can be prevented from being deformed downward, and the thin portion can be prevented from breaking. When removing the cap, the cap body of the cap is rotated in the opening direction with respect to the spout. In this case, the ring ratchet is engaged with the second locking portion of the spout to lock the operation of the ring ratchet in the opening direction. When the cap body is further rotated, the thin portion provided between the ring and the cap body is broken, and the ring and the cap body are separated. According to the present invention, when a sealing material is attached to the upper end of the spout, the upper end of the spout is stopped immediately before the space of the cap, and after removing the sealing material from the upper end of the spout, the upper end of the spout is closed to the space of the cap. To improve the sealing performance.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 7 show an embodiment of the present invention.

As shown in FIGS. 1 to 7, a combination of a spout and a cap includes a cylindrical spout 10 and the spout 1.
And a cap 20 to be attached to the cap. Here, FIG. 1 is a side sectional view showing a state where the ring ratchet of the cap and the first locking portion of the spout are engaged, and FIG.
Is a sectional view taken along the line A-A. The present invention relates to a combination of a spout and a cap, and more particularly to a structure of a pill fur proof spout capable of easily confirming removal of a cap from the spout, and having a male screw. A spout having a cylindrical spout and a female cap having an internal thread engaged with an external thread of the spout, the cap being connected to the cap main body and the cap main body via a thin portion; A combination of a spout and a cap, wherein the spout has a ring, a sealing material is attached to an upper end of the spout, and a space is formed in the cap so that the upper end of the spout can enter.

As shown in FIG. 7, the spout 10 has an inner cylindrical portion 11 extending to the inside of the container P with the flange 12 as a boundary and having a flange 11a, and an outer cylindrical portion 13 extending to the outside of the container P. ing. A male screw 14 is provided on the outer surface of the outer cylindrical portion 13. In FIG. 7, the inner cylindrical portion 11 is an adhesive base for attaching the container P,
At its lower part, a mounting rib 33 and a cross rib 34 for guiding the contents in the container P are sequentially mounted, and the upper end 34a of the cross rib 34 is tapered to transfer the contents to the container P.
The inside can be filled smoothly.

On the other hand, the cap 20 has a cap body 21 provided with an internal thread 22 for engaging with the external thread 14 of the outer cylindrical section 13, and a ring 23 connected to the cap body 21 via a thin portion 24. have.

FIG. 1 (b) FIG. 3 (b) and FIG. 4 (b)
As shown in the figure, at the lower end of the ring 23, a circumferential projection 26 projecting inward is provided over the entire circumference in the circumferential direction, and at the upper end of the ring 23, a predetermined gap is provided in the circumferential direction. In this case, a plurality of, for example, four ring ratchets 27 are provided.

The circumferential projection 26 is formed as described below.
The ring 23 may be provided so as to be engaged with the stopper 15 so as to prevent the ring 23 from dropping, and may be provided partially in the circumferential direction.

Next, the spout 10 will be described in more detail with reference to FIGS. As shown in FIGS. 1 to 4, the outer surface of the outer cylindrical portion 13 of the spout 10 is circumferentially engaged with the ring ratchet 27 of the ring 23 and
A plurality of, for example, four, first locking portions 16 for locking the operation in the closing direction 3 are provided at predetermined intervals in the circumferential direction.
That is, when the cap 20 is attached to the spout 10, the first locking portion 16 of the spout 10 and the ring ratchet 27 of the ring 23 engage with each other when the ring 23 is rotated in the closing direction. In the closing direction.

Furthermore, the outer surface of the outer cylindrical portion 13 is in contact with the lower surface of the ring ratchet 27 at a position in front of the first locking portion 16 with respect to the rotation direction at the time of tightening the cap to prevent deformation of the ring. A plurality of, for example, four ring ratchet receiving portions 18 are provided at predetermined intervals in the circumferential direction. That is, the ring ratchet receiving portion 18 of the spout 10 and the ring ratchet 27 of the ring 23 come into contact with each other when the ring 23 is rotated in the closing direction when the cap 20 is mounted on the spout 10 and tightened. It is designed to prevent downward deformation and breakage.

A ring 23 is provided on the outer surface of the outer cylindrical portion 13.
A plurality of, for example, two second locking portions 17 that are circumferentially engaged with the ring ratchet 27 and lock the operation of the ring 23 in the opening direction are provided at predetermined intervals in the circumferential direction. . That is, the second locking portion 17 of the spout 10 and the ring ratchet 27 of the ring 23 engage with each other when the ring 23 is rotated in the opening direction when the cap 20 attached to the spout 10 is removed. The movement in the direction is locked.

In this case, when the cap 20 is further rotated, the ring 23 remains on the spout 10 side, and the cap body 21
Is separated from the ring 23 via the thin portion 24, and only the cap body 21 is detached from the spout 10.

When the ring 23 is operated in the closing direction, a ring ratchet 27 is attached to the second locking portion 17.
Taper 17 that can get over locking part 17
a is formed.

As shown in FIG. 2, a ring 2 is provided on the outer surface of the outer cylindrical portion 13 of the spout 10 at a position between the first locking portions 16.
Stop portion 15 axially engaged with circumferential projection 26 of No. 3
Are provided at predetermined intervals in the circumferential direction, for example, four.

The stopper 15 provided at the spout 10 breaks the cap body 21 and the ring 23 through the thin portion 24 during use, and repeats the container P and the spout 10 so that the inside of the container is removed from the spout 10. Ring 23 when drinking the contents of
To prevent the ring 23 from dropping.

Further, as shown in FIG.
For example, two stop portions 15 of the stop portions 15 provided on the outer surface of the outer cylindrical portion 13 are provided with projections 15 a extending to the flange 12. The projection 15 a is for holding the ring 23 separated from the cap body 21 on the outer surface of the outer cylindrical portion 13 of the spout 10 without rattling. The protrusion 15a may be provided other than the stopper 15.

As shown in FIG. 3A, the ring 23
When the ring ratchet 27 of the ring 23 engages with the second locking portion 17, the ring ratchet 27 on the ring 23 side and the spout 1
The first locking portion 16 and the stopping portion 15 on the 0 side are arranged to be shifted from each other in the circumferential direction. Therefore, when the cap body 21 and the ring 23 are separated from each other, the ring 23 smoothly falls to the flange 12 side of the spout 10.

As shown in FIG. 5, engagement protrusions 21a, 2a which engage with each other when the cap 20 is screwed into the spout 10 are fitted to the cap body 21 and the ring 23 of the cap 20.
3a are provided at positions facing each other in the circumferential direction. With such engagement projections 21a and 23a,
When the cap 20 is screwed into the spout 10, the thin portion 24 can be prevented from being broken.

As shown in FIGS. 1B and 3B, a sealing material 30 is attached to the upper end of the outer cylindrical portion 13 of the spout 10. Further, the cap body 21 is provided with an inner ring 32 protruding downward, and a space 31 is formed outside the inner ring 32 so that the upper end of the outer cylindrical portion can enter therein.

The upper end of the outer cylindrical portion 13 stops immediately before the space 31 of the cap body 21 when the ring ratchet 27 of the ring 23 engages with the first locking portion 16 so as not to enter the space 31. It has become. In this space 31, a contact ring 31 protruding from the cap body 21 side is provided.
a is provided.

The spout 10 and the cap 20 are HDPE, LLDPE, PP, HI.
It is formed from PS, ABS, AS, PC, Ny and the like.

Next, the operation of the present embodiment having such a configuration will be described.

First, the outer surface of the mounting rib 33 of the spout 10 is heat-sealed inside the container P, and the spout 10 is mounted on the container P in this manner.

Next, contents such as drinking water are filled into the container P from the outlet 10 at a temperature of, for example, about 90 ° C., and after the filling, the deposits on the outlet 10 are washed with warm water of about 80 ° C. The sealing material 3 is provided on the upper end of the outer cylindrical portion 13 of the spout 10.
0 is attached by a method such as heat sealing at a sealing temperature of 170 ° C. to 200 ° C., and then the contents in the container P are retorted. Thereafter, the male screw 14 of the spout 10 is engaged with the female screw 22 of the cap 20, and the cap 20 is screwed into the spout 10 in the closing direction, and the cap 20 approaches the flange 12 of the spout 10. In this case, the cap 20 has, for example, a tightening torque of 4 to 6 kgf and a rotation speed of 30 Hz to
It can be screwed in using a 60hz auto driver (not shown).

During this time, the circumferential projection 26 of the ring 23 goes over the stop 15. Therefore, even if the ring 23 is separated from the cap body 21, the ring 23 does not fall out of the spout 10. Then, the second locking portion 17 on the spout 10 side
The ring ratchet 27 on the cap 20 side crosses over the taper 17a. Next, the ring ratchet 27 is engaged with the first locking portion 16 to lock the operation of the ring 23 in the closing direction. When the cap 20 is screwed into the spout 10, as described above, the engagement protrusion 21a of the cap body 21 and the engagement protrusion 23a of the ring 23 are engaged.
The thin portion 24 provided between the ring 1 and the ring 23 does not break. Further, in the tightening by the automatic screwdriver, the ring ratchet receiving portion of the present invention prevents the deformation of the ring ratchet even if a force for deforming the ring is exerted by the inertia force. As a result, the thin portion is not broken.

When the ring ratchet 27 and the first locking portion 16 are engaged in this way, as shown in FIGS. 1A and 1B, the upper end of the outer cylindrical portion 13 is
It stops just before 1 and does not enter the container P. Therefore, the seal member 30 provided at the upper end of the outer cylindrical portion 13 is not broken by the inner ring 32.

At the time of use, as shown in FIGS. 3A and 3B, first, the user operates the cap body 2 of the cap 20.
1 is gripped, and the cap 20 is rotated about 10 ° in an opening direction (a direction opposite to the screwing direction) where the cap 20 is loosened from the spout 10. In this case, the second locking portion 17 on the spout 10 side and the cap 20
Side ring ratchet 27 is engaged in the circumferential direction, and the movement of the ring 23 in the opening direction is locked.
Is fixed to the spout 10 side. For this reason, only the cap body 21 rotates in the opening direction to be loosened from the spout 10, the thin portion 24 between the cap body 21 and the ring 23 is broken, and the cap body 21 and the ring 23 are separated.

Further, by rotating the cap body 21 in the opening direction to loosen the spout 10, the spout 10 is rotated.
The engagement between the male screw 14 on the side and the female screw 22 on the cap main body side is released, and only the cap main body 21 is removed from the spout 10.

During this time, the ring 23 separated from the cap body drops about 2 mm toward the flange 12 while sliding along the outer cylindrical portion 13 of the spout 10 due to its own weight. In this case, since the ring ratchet 27 of the ring 23 is displaced in the circumferential direction from any of the stopper 15, the first locking part 16, and the second locking part 17 on the spout 10 side, the ring 23 is displaced. Can smoothly fall to the flange 12 side by its own weight. Outlet 10
Since the projection 15a extending from the stopper 15 is provided on the side, when the ring 23 falls to the flange 12 side, the inner surface of the ring 23 is guided by the projection 15a. Therefore, when the ring 23 falls, the ring 23 does not rattle around the outer periphery of the spout 10 and does not come off.

Next, the user removes the sealing material 30 at the upper end of the outer cylindrical portion 13, pulls the spout 10 repeatedly with the container P, puts the spout 10 into the mouth, and puts the contents (drinking water, nata de coco, jelly, etc.). Drink it out of the spout 10. In this case, since the circumferential projection 26 of the ring 23 engages with the stopper 15 of the spout 10, when the container P is repeatedly pulled, the ring 23 falls from the tip of the spout 10 toward the mouth of the user. You won't.

Thereafter, the user returns the container P to the original state in which the spout 10 faces upward, and then attaches the cap body 21 to the spout 10 again. In this case, since the cap 20 is in a state where the cap body 21 and the ring 23 are separated from each other, the cap body 21 can be screwed deeper into the outer cylindrical portion 13. At this time, the upper end of the outer cylindrical portion 13 enters the space 31 of the cap body 21, slides on the inner ring 32, and comes into contact with the contact ring 31a. Therefore, the sealing performance between the outer tubular portion 13 and the cap body 21 can be improved. (FIG. 4 (a)
(B)).

By externally confirming that the cap body 21 and the ring 23 are separated from each other, it is possible to easily recognize that the cap 20 has been once removed.

As described above, according to the present embodiment, the ring ratchet 27 of the ring 23 is engaged with the first locking portion 16 before the seal member 30 is removed from the outer cylindrical portion 13 to open the ring 23. By locking the movement in the direction, breakage of the sealing material 30 can be prevented. Further, the ring ratchet 27 is engaged with the second locking portion 17 to lock the movement of the ring 23 in the opening direction.
And after removing the sealing material 30, the outer cylindrical portion 1 is removed.
3 can enter the space 31 of the cap main body 21, and the sealing performance between the outer tubular portion 13 and the cap main body 21 can be improved.

As shown in FIG. 4B, a projection 35 may be further provided below the inner ring 32 of the cap body 21. In this case, the ring ratchet 27 and the first
At the time of engagement with the locking portion 16, the sealing member 3 of the outer cylindrical portion 13
By contacting the lower end of the protruding portion 35 with 0, rattling when the cap 20 is screwed into the spout 10 can be prevented.

[0041]

As described above, according to the present invention, when the ring is rotated in the closing direction when the cap is mounted, the ring ratchet is engaged with the first locking portion to lock the operation of the ring in the closing direction. . When removing the cap, rotating the cap body of the cap in the loosening direction engages the ring ratchet and the second locking portion, and then the thin portion is broken and the ring and the cap body are separated to open the container. It can be easily recognized that it is in the plugged state. Further, by providing the ring ratchet receiving portion at the spout, the problem that the thin portion connecting the cap body and the ring is deformed or broken due to the inertial force of the tightening when the cap is mounted can be solved. In addition, when the user reattaches the cap, the cap body and the ring are separated, so that the cap body can be tightened more deeply with respect to the outer tubular portion. Furthermore, when a sealing material is attached to the upper end of the spout, the upper end of the spout is stopped just before the space of the cap to prevent breakage of the sealing material, and after removing the sealing material, the upper end of the spout enters the space of the cap. As a result, the sealing performance can be improved.

[Brief description of the drawings]

FIG. 1 is a view illustrating an embodiment of a combination of a spout and a cap according to the present invention when a cap is attached,
(A) is a sectional side view showing a state where the ring ratchet of the cap and the first locking portion of the spout are engaged, and (b) is a side view.
Is a sectional view taken along the line A-A.

FIGS. 2A and 2B are diagrams illustrating a ring ratchet receiving portion according to the present invention, in which FIG. 2A is a perspective view of a spout, and FIG. 2B is a partial cross-sectional view of the ring ratchet receiving portion (when a cap is tightened).

FIG. 3 is a side sectional view of the union of a spout and a cap according to the present invention when the assembly is removed.

FIG. 4 is a side sectional view when the combination of the spout and the cap according to the present invention is remounted.

FIG. 5 is a perspective view showing a cap.

FIG. 6 is a diagram showing a space in a cap body.

FIG. 7 is a view showing a container and a spout.

FIG. 8 is a conceptual diagram showing ring deformation in a conventional combination of a spout and a cap.

[Explanation of symbols]

 P container 10 Injection port 11 Inner cylinder part 12 Flange 13 Outer cylinder part 14 Screw 15 Stop part 16 First locking part 17 Second locking part 18 Ring ratchet receiving part 20 Cap 21 Cap body 22 Screw 23 Ring 24 Thin part 26 Circumferential projection 27 Ring ratchet 30 Seal material 31 Space 31a Contact ring 32 Inner ring 33 Mounting rib 34 Cross rib 35 Projection

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 AA04 AA12 AB01 BA01 BA05 CA01 CC03 DA01 DB06 DB12 EA02 FA09 FB01 FD13 GA01 GB01 GB08 HA03 HB02 HC03 HD01 KA15 LD01

Claims (3)

[Claims] 1. A spout having a cylindrical spout having an external thread, and a cylindrical cap having an internal thread engaged with the external thread of the spout and being mounted on the spout.
A ring connected to the cap body via a thin portion, a plurality of ring ratchets are provided at predetermined intervals on the inner surface of the ring, and the outer surface of the spout is engaged with the ring ratchet to close the ring in the closing direction of the ring. A first locking portion for locking the operation,
The second locking portion that engages with the ring ratchet to lock the movement of the ring in the opening direction and the lower surface of the ring ratchet at a position before the first locking portion with respect to the rotation direction when the cap is tightened. A combination of a spout and a cap, wherein a ring ratchet receiving portion is provided for contacting the ring to prevent deformation of the ring. 2. A sealing material is attached to an upper end of the spout, and a space is formed in the cap so that the upper end of the spout can enter, and the upper end of the spout is engaged with the ring ratchet when the first locking portion is engaged. The combination of a spout and a cap according to claim 1, wherein the combination is located immediately before the space. 3. A method according to claim 1, wherein a circumferential projection protruding inward is provided on a peripheral edge of a lower end of the ring, and a stopper is provided on an outer surface of the spout to engage with a circumferential projection of the ring in the axial direction. 3. A combination of a spout and a cap according to claim 1 or claim 2.