JPH10310161A - Container and heat-resistant cap used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To greatly facilitate removal of a cap for recycling a container as to a container and its heat-resistant cap which is struck to be mounted on the container and which are heated to stop the fermentation of and to sterilize sake, juice, or noodle sauce, etc., when the same is to be filled in the container. SOLUTION: An inner stopper 3 is mounted on a container mouth part 2 by pressure welding, and a protrusion 5 provided in the inner tube 6 of the inner stopper 3 is engaged with a recess 4 on the mouth part 2 by pressure welding. The inner stopper 3 is covered with an outer lid 14 which is harder than the inner stopper 3 and which has a softening point higher than the boiling point of water, and the outer tube 12 of the outer lid 14 is pressure welded on the outside of the inner tube 6. At the bottom end of the inner tube 6, a bottom receiving part 11 protruding outward for storing the bottom end part of the outer tube 12 is provided, and a bottom receive lacking part 17 for engaging with a corkscrew is partialy formed in the bottom receiving part 11. Also an outer tube lacking part for engaging with the corkscrew is partially formed in the outer tube 12. Moreover, a similar inner tube lacking part is partially formed in the inner tube 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container used for a liquid which requires heating when filling a container for stopping or sterilizing fermentation such as sake, juice or noodle soup. It relates to a heat-resistant cap to be used.

[0002]

2. Description of the Related Art Conventionally, when filling a container as described above,
The container used in the case of a liquid that needs heating for the stop of fermentation after filling or sterilization etc. and the cap used for this,
Usually, it is configured as shown in FIG. In the figure, reference numeral 1 denotes a container, and 2 denotes a mouth thereof. Reference numeral 3 denotes an inner stopper, which is made of synthetic resin, has an inner cylinder 6, an upper wall 8,
A tear 7 is formed in the upper wall 8. Reference numeral 9 denotes a filling cylinder. An outer lid 14 made of a synthetic resin is attached to the outside of the inner plug 3. The outer lid 14 includes an outer cylinder 12, a locking portion 16 for engaging the inner plug 3 with the engaging portion 10, and a lid 13. 24 denotes an inner cylinder, 25 denotes a fissure, and 26 denotes a tearing member. 27 indicates a hinge, and 28 indicates a hook. Reference numeral 5 denotes a ridge which is pressed into engagement with a concave ridge 4 formed on the outer periphery of the mouth 2 of the container 1. Reference numeral 15 denotes a lower end of the outer cylinder 12, and 29 denotes a heating liquid. The heat-resistant cap thus configured is attached to the mouth 2 of the container 1 containing the heating liquid 29 by means of a stopper, as described above, and the ridge 5 is pressed into engagement with the recess 4. Then, in this case, the elasticity of the middle cylinder 6 is reduced by the heat of the heating liquid 29, the pressure contact is weakened, and the degree of sealing is reduced. It is suppressed to the extent that there is no problem in practical use.

[0003]

However, the above-mentioned conventional container and the heat-resistant cap used therein have the following problems. It is possible to attach this heat-resistant cap to the
When the plug is inserted, the protruding ridge 5 of the inner plug 3 is engaged with the concave ridge 4 by pressing. Therefore, the container cannot be easily removed when it is collected for recycling. In particular, since the outer cylinder 12 of the outer lid 14 is in pressure contact with the outer side of the middle cylinder 6, the pressure contact of the ridge 5 is further strengthened, and unlike a normal cap which is not heat resistant, removal is particularly difficult. is there. The present invention has been made to solve the above-described problem, and has a ridge 5 that engages with the concave ridge 4 of the mouth 2 of the container 1, and presses the outer cylinder 12 outside the middle cylinder 6. It is an object of the present invention to provide a container and a heat-resistant cap used in the heat-resistant cap comprising the inner plug 3 and the outer lid 14, which can be easily removed at the time of recycling and collecting the container.

[0004]

In order to achieve the above object, the present invention will be described. It is a synthetic resin inner plug 3 attached to the mouth 2 of the container 1 and the inner plug 3 provided on the inner plug 3. A middle cylinder 6 having a ridge 5 which is pressed into engagement with the concave ridge 4 on the outer periphery of the mouth 2, an upper wall 8 having a tearing portion 7 provided on the middle cylinder 6, and The injection cylinder 9 and the engagement part 10 provided outside the tearing part 7, the annular lower receiving part 11 provided to protrude outward at the lower end of the middle cylinder 6, and the mounting on the inner stopper 3. An outer lid 14 made of a synthetic resin having a higher hardness than the inner plug 3 and a softening point higher than the boiling point of water, comprising an outer cylinder 12 and a lid 13 pressed against the outside of the inner cylinder 6; Lower end 15 of the outer cylinder 12 housed on
An engaging portion 16 provided at the upper part of the outer cylinder 12 for press-fitting engagement with the engaging portion 9; and a lower receiving lacking portion 17 formed on a part of the lower receiving portion 11 for opening and closing a stopper. And a heat-resistant cap used for the container.
Further, in the heat-resistant cap, a container in which a part of the outer cylinder 12 is provided with an outer cylinder lacking portion 18 for opening and closing the stopper and a heat-resistant cap used for the container. In this case, the outer cylinder missing portion 1
8 is formed, and the lower receiving lacking portion 17 may not be formed. In each of the heat-resistant caps described above, the filling cylinder 6 is the container having the middle cylinder notch 19 that locks a part of the filling cylinder 6 and the heat-resistant cap used for the container.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. A synthetic resin inner plug 3 attached to the mouth 2 of the container 1, and the mouth 2 provided on the inner plug 3.
6 having a ridge 5 which is pressed into engagement with a concave ridge 4 on the outer periphery of the cylinder.
And an upper wall 8 having a tearing portion 7 provided above the middle cylinder 6
An injection tube 9 and an engagement portion 10 provided on the upper wall 8 outside the tearing portion 7, an annular lower receiving portion 11 provided to protrude outward at a lower end of the middle cylinder 6, It is made of a synthetic resin having a hardness higher than that of the inner plug 3 and a softening point higher than the boiling point of water. An outer lid 14, a lower end portion 15 of the outer cylinder 12 housed on the lower receiving portion 11, a locking portion 16 for press-fitting and locking to the engaging portion 9 provided on the upper portion of the outer cylinder 12, A container and a heat-resistant cap used for the container, wherein the container comprises a stopper portion formed in a part of the lower receiving portion 11 and a notched portion 17 to be hooked.

According to the present invention, when the heating liquid is stored in the container 1 and the heat-resistant cap is mounted, the heat of the heating liquid is transmitted to the middle cylinder 6 through the opening 2 first. As a result, the middle cylinder 6 is heated and deformed, so that the pressure of the pressure contact with the mouth 2 is reduced, and the sealing force is likely to be reduced. In this case, the pressure of the outer cylinder 12 having a softening point higher than the boiling point of water, which has been pressed against the outside of the middle cylinder 6, can supplement the decrease in the pressure of the middle cylinder 6. The reduction of the sealing force between the cylinder 6 and the mouth 2 can be suppressed to a level that does not hinder practical use. In the case of recycling the container 1, the lower receiving portion 17
And the upper portion of the heat-resistant cap, and the lower portion of the stopper is pushed upward to be removed from the mouth portion 2. In this case, the locking portion at the lower part of the bottle opener pushes the outer cylinder 12 made of a synthetic resin having a higher hardness than the inner plug 3 directly or indirectly in the vicinity of the inner stopper 3. There is no frustration that is deformed and it is hard to push up, and a reaction force is immediately generated, and the force reaches directly without dispersing, so that it can be pulled out brilliantly.

[0007] Further, since the lower receiving portion 17 is formed in the lower receiving portion 11, and the lower receiving portion 11 is formed to have a larger diameter than the middle cylinder 6, the opening of the stopper is further away from the center of the opening. It can be applied to the part, a large moment can be obtained, and it can be removed with a small force. Next, as another embodiment, in the heat-resistant cap, a part of the outer cylinder 12 is provided with an outer cylinder lacking portion 18 which is hooked and hung. In this case, the lower receiving portion 17 may or may not be formed. If it is not formed, remove it by another method described below. First, the case where the lower receiving lacking portion 17 is formed will be described. At the time of recycling the container 1, first, the outer cylinder lacking portion 18 and the upper end of the heat-resistant cap are opened,
This is turned upward and removed. Next, the lower receiving portion 17 is opened and removed. In other words, by removing in two steps in this way, even a weak person such as a woman at home can easily remove the same. Moreover, in this case, the outer tube lacking portion 18 is higher in hardness than the inner plug 3, so that it is not partially deformed by the opening force,
There is no frustration that can not be easily removed because a reaction force is immediately generated, and it can be immediately removed gracefully. Further, since the outer cylinder 12 is located on the lower receiving portion 11, the outer cylinder lacking portion 18 is also located at a portion distant from the center of the mouth portion 2. Therefore, the moment at the time of unplugging is increased, so that it is easy to apply with a small force. Can be removed. For the same reason as described above, the inner plug 3 is provided with a large moment, a small force, and
Therefore, since the pressing force against the mouth portion 2 is small, it can be easily removed. In addition, the under receiving part 17
Are not formed by other methods as described below.

Next, as still another embodiment, in the heat-resistant cap according to the second aspect of the present invention, the middle cylinder 6 is formed with a middle cylinder lacking portion 19 for partially removing the middle cylinder 6. .
In this case, the middle cylinder missing portion 19 is formed in the same shape and the same size as the outer cylinder lacking portion 12, and when the container 1 is recycled, the stopper is simultaneously stopped on both the outer cylinder missing portion 18 and the middle cylinder missing portion 19 at the same time. And exert both of them. And the outer cylinder 1
2 is in pressure contact with the middle cylinder 6, and the outer cylinder 12 has a higher hardness than the middle cylinder 6 and is radially outward from the middle cylinder 6, so that a large moment is generated and a reaction force is immediately generated because of the high hardness. There is no frustration that can be easily removed, and it can be removed very easily.

Next, as still another embodiment, the lower receiving portion 7, the outer tube missing portion 18, and the middle tube missing portion 19 may form a thin film portion 20 extending over the whole thereof. . The thin film portion 20 may be provided anywhere in the thickness direction of the portion where the thin film portion 20 is provided. By forming in this way, it is possible to prevent intrusion of floating dust in the air into those missing portions, and to open the respective missing portions while opening them, when turning upward, these missing portions are removed. Only the part where the bottle opener is applied is partially deformed upward, and the stress acts to prevent the part from being deformed. There is no frustration that it is hard to remove, and you can immediately remove it immediately.

Next, as still another embodiment, a weakening line 21 may be formed in the thin film portion 20 so that the thin film portion 20 is easily cut off. And this weakening line 2
1 is formed along the edge of the thin film portion 20. Therefore, when removing the heat-resistant cap, it is possible to immediately understand the portion to be opened by the weakening line 21. Also, the portion can be broken very easily by simply pressing the portion where the bottle opener is hooked, and the bottle opener can be applied to the lacking portion. Next, as still another embodiment, the lower receiving lacking portion 7, the outer cylinder missing portion 18, the middle cylinder missing portion 1
9 may each be a blind hole. The thus formed one can prevent the intrusion of floating dust into the inside of each of the missing parts, and only the part where the bottle has been unplugged is deformed at the time of removal by unplugging. It doesn't give a frustration that is hard to escape. The reason is that each part of the blind hole acts integrally, and stress is generated so as to prevent deformation of only the part where the stopper has been removed. For this reason, when the bottle is unplugged and pivoted upward, it can be immediately extracted splendidly. Next, as still another embodiment, the thickness of a part or all of the base of the injection cylinder 9 in the circumferential direction is formed to be 0.9 mm or less. At the present time, the thickness of the base of the injection pipe 9 of the same cap, which is generally commercially available, is formed to be about 1.1 mm.

In one embodiment, the thickness is 0.8 mm. By forming the pipe 9 to be 0.9 mm or less in this way, it is possible to easily remove the bottle by pushing down a part of the injection tube 9 with the upper portion of the bottle opener as shown in FIG. 15 and remove it. It should be noted that a material having a base portion having a thickness of 1.1 mm like the above-mentioned conventional one is difficult to bend by plugging or the like. Next, as still another embodiment, a plurality of weakening lines 22 that are easily broken are formed in the injection cylinder 9 in the vertical direction. With this configuration,
By pressing between the plurality of weakening lines 22 by the bottle opener in the same manner as described above, the portion can be pushed down or broken to open the bottle opener, and can be removed. Next, as still another embodiment, a plurality of weakened portions 23 that are easily broken are formed in the middle cylinder 6 in the vertical direction and the lower portion extends to the lower receiving portion 11. The weakened portion 23 is formed in a groove shape as an example, and a portion corresponding to the ridge 5 is formed with a deep groove so that the portion is easily broken.

With the above configuration, the outer lid 1
4 and remove the middle cylinder 6 of the inner plug 3 from the weakened portion 2.
By breaking the middle cylinder 6 against the mouth 2 by breaking it with a finger or the like by 3, the middle cylinder 6 can be easily removed from the mouth 2 in that state. Moreover, since the weakened portion 23 is formed to reach the lower receiving portion 11 as described above, the weakened portion 23 can be easily torn by gripping the lower receiving portion 11 protruding outward and applying force. Can be.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG.
Is attached with a synthetic resin, for example, a polyethylene inner plug 3. Reference numeral 4 denotes a concave line, and the protruding line 5 of the middle cylinder 6 of the inner plug 2 is pressed against the concave line. Reference numeral 8 denotes an upper wall, and a tearing portion 7 is formed on the upper wall 8 inside the inner cylinder 24 by a fissure 25. 26 denotes a pull ring-shaped tearing member. 9 is a cylinder,
Reference numeral 10 denotes an engagement portion that engages with the outer lid 14 described later. Reference numeral 11 denotes a lower receiving portion which protrudes outward from the lower end of the injection tube 6. Then 1
Reference numeral 4 denotes an outer lid, which is formed of a synthetic resin having a higher hardness than the synthetic resin forming the inner plug 3 and having a softening point higher than the boiling point of water, for example, polypropylene. The outer lid 14 includes an outer cylinder 12 and a lid 13 which are pressed against the outside of the middle cylinder 6, and a lower end 15 of the outer cylinder 12 is accommodated on the lower receiving portion 11. A locking portion 16 for press-contacting and locking with the engaging portion 10 is provided above and inside the outer cylinder 12 and locked. A part of the lower receiving part 11 is a lower receiving lacking part 1
7 are formed. 27 is a hinge, 28 is a lid 1
Reference numeral 29 denotes a lid engaging portion formed on a part of the outer cylinder 12 and a lid engaging portion formed on a part of the upper part of the outer cylinder 12. The lower receiving lacking portion 17 is formed by opening the lower portion as shown in FIGS. 2 and 3 as an example, and as shown in FIGS.
4C, which is also formed as shown in FIG. 4D, is formed on the side which does not correspond to the hinge 27 unlike the one shown in FIG. FIG. 4 (b) shows a case where a part of the lower receiving portion 11 is opened in both vertical directions, and FIG. 4 (c) shows a case where only the upper portion of the lower receiving portion 11 is opened. 4 (d) is formed leaving the remaining portion 30 above and below the lower receiving portion 11. Next, as another embodiment, as shown in FIGS.
An outer tube lacking portion 18 was formed at a part of the outer cylinder to be hooked up with the bottle opener. In this case, although the lower receiving portion 17 is formed in both of FIGS. 7A and 7B, there is no problem if this is not formed.

FIGS. 10A and 10B show another embodiment.
As shown in FIG. 7, a middle tube lacking portion 19 is formed in a part of the middle tube 6 to be plugged and hung. The middle cylinder lacking portion 19 is formed in the same shape and size as the outer cylinder lacking portion 18, and both are formed at corresponding positions in the same circumferential direction. Thereby, the stopper can be pulled out by hooking both the notches 19 and 18 at a time. It is to be noted that these may be formed at different positions, and may be separately extracted. Next, as another embodiment, as shown in FIGS. 5 (b) and 8 (c), the lower receiving lacking portion 17, the outer cylinder missing portion 18, and FIGS. 10 (a) and 10 (b)
In the middle cylinder lacking portions 19 shown in FIG.
The thin film portion 20 may be formed at any position in the thickness direction of each of the missing portions 17, 18, and 19, and is formed to have a thickness that can be easily broken by the stopper portion of the stopper. Next, as another embodiment, as shown in FIGS.
A weakening line 21 was formed to make breaking easier.
The weakened line 21 is formed by perforations, continuous holes, and the like, so that the positions of the missing portions 17, 18, and 19 can be easily known. Note that the weakening line 21 is formed along the edge of each of the missing portions 17, 18 and 19.

Next, as another embodiment, FIG.
As shown in (b), the lower receiving lacking portion 17 was formed in a blind hole. Although not shown, the outer cylinder missing portion 18 and the middle cylinder missing portion 19 are formed in blind holes. However, outer cylinder missing part 18
In the case where both the inner cylinder lacking portion 19 and the middle cylinder lacking portion 19 are formed so as to penetrate at the circumferential position, the outer cylinder lacking portion 18 is not formed as a blind hole. These blind holes prevent dust from entering inside, and can make the insertion depth of the stopper portion of the bottle opener constant.

Next, as another embodiment, as shown in FIG. 11, the casting cylinder 9 was formed so that the thickness of a part or all of the base portion was 0.9 mm or less. And 0.8 as an example
mm. Normally, the thickness of the base of the injection cylinder of the same type of conventional cap is about 1.1 mm. With such a thin configuration, as shown in FIG. 15, the thinner portion of the injection tube 9 can be pressed and bent at the upper part of the bottle opener to open the bottle. As another embodiment, as shown in FIG. 12, a plurality of weakening lines 22 are formed in the injection cylinder 9 in the vertical direction. With this configuration, when the space between the plurality of weakening lines 22 is pressed at the upper part of the stopper as shown in FIG. 15, the space between the weakening lines 22 is bent inward as in FIG. Can be overrun. Alternatively, between the weakening lines 22 can be broken and fall down, thereby opening the bottle. As another example, as shown in FIG. 13, a plurality of weakening portions 23 that are easily broken are formed in the middle cylinder 6 in the vertical direction and the lower portion extends to the lower receiving portion 11. With this configuration, the weakened portion 23 can be easily removed from the container 1 by breaking the weakened portion 23. In addition, when mounted on the container 1, the outer cylinder 1 having a higher hardness than the inner stopper 3 is provided outside the inner cylinder 6.
2 is pressed against, so that the weakened portion 23 can be prevented from breaking.

The heat-resistant cap of this embodiment is configured as described above.
Thereby, it is possible to prevent the sealing performance from being greatly impaired. Moreover, at the time of collecting the container 1, as shown in FIG. 14, the lower heat receiving cap 17 can be removed by opening the lower receiving portion 17, the outer tube missing portion 18, the middle tube missing portion 19 and the like.

[0018]

According to the first aspect of the present invention, when the heating liquid is accommodated in the container 1 and the heat-resistant cap is attached thereto, the heat of the heating liquid is transmitted through the opening 2. First, it is brought to the middle cylinder 6,
Is heated and deformed, the pressure of the pressure contact with the mouth 2 is reduced, and the sealing force is likely to be reduced. In this case, the pressure of the outer cylinder 12 having a softening point higher than the boiling point of water that has been pressed against the outside of the middle cylinder 6 can supplement the decrease in the pressure of the middle cylinder 6. The reduction in the sealing force between the mouth portions 2 can be suppressed to a level that does not hinder practical use.
In the case of recycling the container 1, the lower receiving portion 1
Put a bottle opener between 7 and the top of this heat-resistant cap,
The lower part of the stopper is pushed upward and removed from the mouth part 2. In this case, the locking portion at the lower part of the line is to push up the outer cylinder 12 made of synthetic resin having a higher hardness than the inner plug 3 directly or indirectly in the immediate vicinity. There is no frustration that is deformed and it is hard to push up, and a reaction force is immediately generated, and the force reaches directly without dispersing, so that it can be pulled out brilliantly. In addition, since the lower receiving lacking portion 17 is formed in the lower receiving portion 11, and the lower receiving portion 11 is formed to have a larger diameter than the middle cylinder 6, the stopper is removed correspondingly to a portion away from the center of the mouth. Therefore, a large moment can be obtained, and it can be removed with a small force.

According to the second aspect of the present invention, when the container 1 is recycled, the outer cylinder lacking portion 1
8 and the upper end of the heat-resistant cap is opened and the upper part is turned upward to be removed. Next, the undercut part 1
7. Remove the 7 by opening the stopper. In other words, by removing in two steps in this way, even a weak person such as a woman at home can easily remove the same.
Moreover, in this case, since the outer tube lacking portion 18 is higher in hardness than the inner plug 3, a reaction force is immediately generated without being partially deformed by the opening of the plug. be able to. The outer cylinder 1
Since 2 is on the lower receiving portion 11, the outer tube lacking portion 18 is also located at a portion distant from the center of the mouth portion 2 and the moment at the time of unplugging becomes large, so that it can be easily removed with a small force. Can be. The inner plug 3 can be easily removed because only the inner plug 3 has a large moment and a small force for the same reason as described above, and since the inner plug 3 has only a small pressing force against the mouth 2, the inner plug 3 can be easily removed. . In addition, underpart lack part 1
Those not formed with 7 are removed by other removal methods as described later.

According to the third aspect of the present invention, as described above, when the container 1 is recycled, the bottle opener is hooked on both the outer cylinder lacking portion 18 and the middle cylinder lacking portion 19 at a time.
You can put effort on both. The outer cylinder 12 is in pressure contact with the middle cylinder 6, and the outer cylinder 12 has a higher hardness than the middle cylinder 6 and is radially outward from the middle cylinder 6, so that a large moment can be obtained. Since it occurs immediately, there is no frustration that can not be easily removed, and it can be removed very easily. The invention according to claim 4 is configured as described above, and the outer cylinder 12 is on the lower receiving portion 11, and the outer cylinder lacking portion 19 and the lower receiving lacking portion 17 are radially outward from the middle cylinder 6. Therefore, a large moment can be obtained when each of them is removed by the bottle opener, and the force can be applied twice, so that it can be removed very easily.

According to the fifth aspect of the present invention, as described above, the airborne dust in the air can be prevented from entering each of the lacking portions 17, 18, and 19, and the thin film portion 20 can be provided with the respective lacking portions 17, 18. , 19 are formed on the same surface as the outer surface, and each of the missing portions which can be hooked by breaking the portion which is apparently the same as a normal heat-resistant cap with the hooking portion of the bottle opener. 17, 18, and 19 can be changed. In the case where the thin film portion 20 is formed on the same plane as the inner surface of each of the lacking portions 17, 18, and 19, when each of the lacking portions is unplugged and turned upward, the lacking portions are removed. Only the part where the bottle opener is applied is resisted from being deformed upward, and stress acts to prevent partial deformation of that part, so that the reaction force is generated earlier by that much,
There is no frustration that cannot be easily removed by the above-mentioned deformation, and it can be removed gracefully. According to the sixth aspect of the present invention, when the heat-resistant cap is removed, a part to be opened can be immediately understood by the weakening line 21 when the heat-resistant cap is removed. Also, the portion can be broken very easily by simply pressing the portion where the bottle opener is hooked, and the bottle opener can be applied to the lacking portion.

According to the seventh aspect of the present invention, as described above, it is possible to prevent floating dust from entering the inside of the missing portion, and to remove the dust by removing the plug. There is no frustration that only the part is partially deformed and cannot be easily removed. The reason is that each part of the blind hole acts integrally, and stress is generated so as to prevent deformation of only the part where the stopper has been removed. For this reason, when the bottle is unplugged and pivoted upward, it can be immediately extracted splendidly.

According to the eighth aspect of the present invention, as described above, a part of the middle cylinder 9 is pushed down by the upper part of the bottle opener as shown in FIG. Can and can be removed. According to the ninth aspect of the present invention, by pressing between the plurality of weakening lines 22 with the bottle opener, the portion can be pushed down or broken, and thereby the bottle opener can be hung. Can and can be removed. The invention according to claim 10 is configured as described above. After the outer lid 14 is removed, the middle cylinder 6 of the middle line 3 is cut off by the weakening portion 23 with a finger or the like, whereby Since the pressure of the cylinder 6 against the mouth 2 can be reduced, the tube 6 can be easily removed from the mouth 2 in this state. Moreover, since the weakened portion 23 is formed to reach the lower receiving portion 11 as described above, the lower receiving portion 11 protruding outward can be used as a knob, and the lower receiving portion 11 is pinched to apply a force. Thereby, the weakened portion 23 can be easily torn.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is a cross-sectional view of a container and a heat-resistant cap used for the container.

FIG. 2 is a bottom view of the heat-resistant cap shown in FIG.

FIG. 3 is a side view of the container shown in FIG. 1 and a heat-resistant cap used for the container.

FIG. 4 is a view showing another embodiment of the present invention and showing various forms of a lower receiving lacking portion formed on a heat-resistant cap.

FIG. 5 is a cross-sectional view showing a heat-resistant cap according to still another embodiment.

FIG. 6 is a side view of a heat-resistant cap according to still another embodiment.

FIG. 7 is a side view of a heat-resistant cap, showing still another embodiment.

FIG. 8 is a cross-sectional view of a heat-resistant cap according to still another embodiment.

FIG. 9 is a side view of a portion of a heat-resistant cap, showing still another embodiment.

FIG. 10 is a side view of the inner plug of the heat-resistant cap, showing still another embodiment.

FIG. 11 is a partial sectional view of the inner plug of the heat-resistant cap, showing still another embodiment.

FIG. 12 is a side view of the inner plug of the heat-resistant cap according to still another embodiment.

FIG. 13 is a perspective view of an inner plug of a heat-resistant cap according to still another embodiment.

FIG. 14 is a cross-sectional view showing a case where the container shown in FIG. 1 and a heat-resistant cap used for the container are removed.

FIG. 15 shows still another embodiment of the present invention, and is a partial cross-sectional view when an inner plug is removed.

FIG. 16 is a sectional view of a conventional container and a heat-resistant cap used for the container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Mouth part 3 Inner plug 4 Recess 5 Ridge 6 Middle cylinder 7 Tearing part 8 Top wall 9 Injection cylinder 10 Engaging part 11 Lower receiving part 12 Outer cylinder 13 Lid 14 Outer lid 15 Lower end part 16 Locking part 17 Missing portion of lower cylinder 18 Missing portion of outer cylinder 19 Missing portion of middle cylinder 20 Thin film portion 21 Weak line 22 Weak line 23 Weak portion

Claims (10)

[Claims] 1. A synthetic resin inner plug 3 attached to a mouth 2 of a container 1; and a ridge 5 provided on the inner plug 3 for press-fitting and locking to a concave ridge 4 on the outer periphery of the mouth 2. A middle cylinder 6 having; a top wall 8 having a tearing portion 7 provided on an upper portion of the middle cylinder 6; a filling cylinder 9 and an engaging portion 1 provided on the upper wall 8 outside the tearing portion 7
0; an annular support 11 protruding outward from the lower end of the middle cylinder 6; a softer piece, which is mounted on the inner stopper 3 and has a higher hardness than the inner stopper 3 and a higher boiling point than water. The outer cylinder 12 and the lid 1 which are made of synthetic resin and are pressed against the outside of the middle cylinder 6.
3; a lower end portion 15 of the outer cylinder 12 housed on the lower receiving portion 11; a locking portion 16 which presses and locks with the engaging portion 10 provided on the upper portion of the outer cylinder 12; Lower receiving lacking portion 1 that is hooked to a stopper that is formed in a part of lower receiving portion 11
7; and a heat-resistant cap used for the container. 2. A synthetic resin inner plug 3 attached to the mouth 2 of the container 1; and a ridge 5 provided on the inner plug 3 for press-fitting and locking to a concave ridge 4 on the outer periphery of the mouth 2. A middle cylinder 6 having; a top wall 8 having a tearing portion 7 provided on an upper portion of the middle cylinder 6; a filling cylinder 9 and an engaging portion 1 provided on the upper wall 8 outside the tearing portion 7
0; an annular support 11 protruding outward from the lower end of the middle cylinder 6; a softer piece, which is mounted on the inner stopper 3 and has a higher hardness than the inner stopper 3 and a higher boiling point than water. Outer cylinder 12 and lid 13 made of synthetic resin and pressed against the outside of said middle cylinder 6
An outer lid 14 comprising: a lower end portion 15 of the outer cylinder 12 housed on the lower receiving portion 11; a locking portion 16 which presses and locks with the engaging portion 9 provided on the upper portion of the outer cylinder 12; An outer cylinder lacking portion 18 formed in a part of the outer cylinder 12 and adapted to be opened and locked;
And a heat-resistant cap used for the container. 3. The container according to claim 2, wherein the middle cylinder 6 has a middle cylinder lacking portion 19 that can be unplugged and hooked on a part of the middle cylinder 6 and a heat-resistant cap used for the container. 4. The container according to claim 1, wherein the outer cylinder has a part lacking the outer cylinder for stoppering and hooking in a part thereof and the heat-resistant cap used for the container. 5. The container according to claim 1, wherein the corresponding lacking portion among the lower receiving lacking portion 17, the outer cylinder missing portion 18, and the middle cylinder missing portion 19 has a thin film portion 20 throughout. And a heat-resistant cap used for this. 6. The container according to claim 5, wherein the thin film portion has a weakening line for facilitating the tearing of the thin film portion, and the heat-resistant cap used for the container. 7. The container according to claim 1, wherein the corresponding lacking portion among the lower receiving lacking portion 7, the outer cylinder missing portion 18, and the middle cylinder missing portion 19 is a blind hole. And a heat-resistant cap used for this. 8. The injection cylinder 9 has a part or all of its base portion having a thickness of 0.9 mm or less.
The container according to 3, 4, 5, 6, or 7, and a heat-resistant cap used for the container. 9. The container according to claim 1, wherein the injection cylinder has a plurality of weakening lines in a vertical direction, and the heat-resistant cap used for the container. 10. The middle cylinder 6 has a plurality of weakening portions 23 extending vertically and a lower portion extending to the lower receiving portion 11.
The container according to 2, 3, 4, 5, 6, 7, 8 or 9, and a heat-resistant cap used for the container.