JPH0322155Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to plastic caps.

To be more specific, it is a container that contains a container containing quicklime and water, and a pin is inserted from the outside to make a hole in the water container to cause the quicklime and water to react and generate heat, thereby warming the contents such as alcoholic beverages. This invention relates to a cap used for heating, and a cap that generates heat by inserting a pin into the top of the cap.

[Prior Art] A container shown in FIG. 5 is known as a container that uses quicklime and water to heat the contents, such as alcoholic beverages.

That is, in FIG. 5, 1 indicates a paper tube which is the main body of the container, a metal can 2 is inserted from one end of the paper tube, the paper tube 1, the metal can 2 and the lid 3 of the metal can are tightened together at the periphery. Fixed. The inside of the metal can 2 is filled with a plastic film container (water container) 4 containing water B, quicklime C, and a cushioning sheet 5 made of cardboard or the like with a cut in the center.
A lid 3 is applied through the . Note that the water container 4 is housed so as to be located approximately in the center of the quicklime C, and when a pin is pierced as described later,
This pin passes through the water container 4. Further, the lid 3 of the metal can is provided with a hole 31 for inserting a pin approximately in the center, and a plurality of holes 32 for releasing steam are provided around this hole.
A plastic film label 6 is adhered to cover 1 and 32. 7' is a plastic cap for heat insulation during heat generation, and a pin (not shown) is installed inside. Contents A such as alcoholic beverages are stored on the outside of the metal can 2, and a pull-top metal lid 8' is provided.

This container is used as follows.

That is, first remove the cap 7', take out the pin attached to the inside of it, turn the entire container upside down, insert the pin from above the label 6 through the piercing hole 31, and insert the pin into the water container 4. Penetrate. At this time, a pin hole is formed in the water container 4, but since this hole is closed by the pin, almost no water B is discharged from the water container 4. Next, by pulling out the pin, water B is discharged from the water container 4 and starts reacting with quicklime C to generate heat. At this time, since the entire container is inverted, the water B is discharged closer to the contents A, and the quicklime in this position mainly reacts. The temperature rise at the initial stage of the reaction is generally rapid, and along with this, water vapor is rapidly generated and the pressure inside the metal can 2 also rises. After leaving it in this upside down position for a while, cover it with cap 7'.
Content A is heated by placing it upright and leaving it for several minutes. Normally, after the metal can 2 is placed in the correct position, the water vapor generated inside the metal can passes through the piercing hole 31 and the steam vent hole 32, peels off the label 6 due to internal pressure, and flows between the lid 3 and the cap 7'. is discharged. The quicklime that reacts when placed upright is mainly located near the lid 3.

[Problems to be solved by the invention] As mentioned above, with conventional containers, the process of removing the plastic cap, taking out the pin, stabbing it, pulling it out, and reattaching the cap is extremely cumbersome and prone to mistakes. It was easy.

For this reason, the applicant has been considering the development of a container in which a pin can be inserted from above without removing the cap, but in this case, the pin needs to be attached to the outside of the cap, and furthermore, it can be accidentally removed during transportation. I had to put it on without any problems.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a cap which has attachment means on its outer surface that allow the cap to be attached without the pins coming off during transportation.

[Means for Solving the Problems] In order to achieve this object, the present invention includes a cylindrical peripheral wall, a fitting portion formed at one end of the peripheral wall that fits into the outer periphery of the container, and the peripheral wall and other parts. The top surface portion is composed of a peripheral edge portion connected to the peripheral wall, and a recessed portion connected to the peripheral edge portion and recessed toward the container side. A pin tip locking means and a pin gripping portion locking means for locking a pin having a hexagonal or larger polygonal grip formed with a grip portion whose maximum diameter and minimum diameter are substantially orthogonal do not protrude from the peripheral edge. The pin gripping portion locking means includes an empty portion having a width approximately equal to the minimum diameter of the pin gripping portion and a height approximately equal to the minimum diameter of the pin gripping portion; To provide a plastic cap characterized by comprising a closed part on the top, narrower than the width of the empty part, and larger than the minimum diameter of the grip part.

[Function] The plastic cap of the present invention has a pin tip locking means and a pin gripping portion locking means on its outer surface, and the pin can be locked by first locking the tip of the pin and then pushing the grip. The stop part is locked in the empty part. To remove a pin, hold the middle part of the pin, rotate it around its axis, and pull it to remove it. This prevents it from accidentally coming off during transportation, and it is also easy to remove.

[Description of Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 of the drawings is a sectional view of the entire container according to the present invention, FIG. 2 a is a perspective view of the pin, FIG. Figures a and b are perspective views of the plastic cap 7 seen from an upper diagonal direction and a perspective view seen from a lower diagonal direction, Figure 3 C is an explanatory view of the main parts when taking out the pin, and Figures 4 a and b FIG. 2 is an explanatory diagram showing another example of the pin tip locking means.

In FIG. 1, a container body 1, a metal can 2, a metal can lid 3, a water container 4, a cushioning sheet 5, and a label 6 are the same as the conventional container shown in FIG.

The lid 8 of the container body 1 is made of a flexible sheet made by laminating plastic film and metal foil. This is when filling contents such as alcohol.
This is because the contents are filled at a high temperature, so it absorbs the drop in internal pressure when it is cooled to room temperature, and it also absorbs the rise in internal pressure due to the heat generated by the reaction between quicklime and water. Reference numeral 81 denotes a plastic ring which is fixed to the upper end of the container body 1 and is used to fuse the lid 8 thereon. Note that by pulling a pull tab (not shown), the lid 8 is peeled off from the ring 81 and is opened entirely or partially.

The plastic cap 7 is as shown in FIGS. 3a and 3b, and has a cylindrical peripheral wall 72 and a container body 1.
It consists of a fitting part 73 (located at the lower end of the peripheral wall 72) that fits on the outer periphery of the rolled-up part of the metal can 2 and the lid 3 of the metal can, and a top part, and this top part is a flat part of the periphery. 74, that is, a peripheral portion and a recessed portion 75 recessed inward (towards the container) at the center portion, and in the center of this recessed portion 75 there is a hole 71 for piercing the pin 9, and the recessed portion 75 tapers toward this hole 71. have. Further, a pin tip locking means 76 for fixing the tip end portion 91 of the pin 9 and a pin gripping portion locking means 77 for fixing the grip portion 98 of the pin 9 are provided on a part of the flat portion 74 of the peripheral edge. It is formed so that it does not protrude from the section. Furthermore, Figure 3b
As can be seen, the inner side of the peripheral wall 72 and the fitting part 73
A steam release groove 78 made of a thin wall portion is provided in a portion of the inner side of the container.

The pin 9 is as shown in FIG. 2a, and has a sharp tip 91 and a grip portion 98 whose cross section is hexagonal or more polygonal and whose maximum diameter and minimum diameter are approximately perpendicular.
and a rod-shaped intermediate portion between the two. In the illustrated example, the intermediate section includes a first intermediate section 92, a second intermediate section 93, a third intermediate section 94, a fourth intermediate section 95, a stopper 96, and a fifth intermediate section 97. . The tip portion 91, the first intermediate portion 92, and the third
There are a plurality of grooves in the axial direction in the middle part 94 of the second
The intermediate portion 93 and the fourth intermediate portion 95 have no groove. This groove may be a spiral groove in addition to a groove parallel to the axis as shown. Although the cross-sectional shape of the grip portion 98 is as described above, in order to obtain a sufficient locking effect, it is desirable that the difference between the maximum diameter and the minimum diameter of the pin 9 be sufficiently large. For example, as shown in FIG. 3C, for the minimum diameter 1 of the pin 9, the maximum diameter
A value of about 1.5 is sufficient.

This pin 9 is installed in the plastic cap 7 of FIG. 3a. That is, the tip 9 of the pin 9
1 into the pin tip locking means 76 consisting of a hole,
By pushing in the grip part 98 from above, the pin 9
The grip portion 98 is fitted and locked in the grip portion locking means 77. The grip portion locking means 77 locks the grip portion 9 of the pin 9.
8 and a grip portion 98 of the pin 9.
An empty portion 771 having a height approximately equal to the minimum diameter of
And, above this sky section 771, the sky section 771 is
It has a closed portion 772 that is narrower than the width of the portion 771 and larger than the minimum diameter of the grip portion 98, and locks and grips the pressed grip portion 98 using the elasticity of the plastic. Grip part 98
Since the cross-sectional shape is a hexagon or a polygon larger than that, the pin 9 can be taken out by holding the middle part of the pin 9 and rotating it around the axis of the pin 9, as shown in FIG. 3C.

In addition, the pin tip locking means 76 may be of a type that is pushed in from above as shown in FIG. It's good to have a type.

This container is used as follows.

That is, the pin 9 is removed from the cap 7 (at this time, it is not necessary to remove the cap 7 from the container body), the entire container is turned upside down, and the pin 9 is inserted through the hole 71 of the cap 7. As soon as the pin tip 91 reaches the water container 4 and breaks it, water begins to be discharged from the water container 4 through the groove of the pin 9. Since the water is discharged through the groove of the pin 9, the water does not travel through the second intermediate portion 93 and stops at this position.
Diffuses into surrounding quicklime.

Further, when the pin tip 91 reaches the opposite side of the water container 4 and breaks it, water is also discharged along the groove in the lever direction, that is, in the direction closer to the contents. At this time, there is no groove-free portion corresponding to the second intermediate portion 93, and the groove exists up to the tip of the pin 9, so water travels along the pin 9 to the tip and is diffused.

When the pin 9 is inserted all the way to the base, the fifth intermediate portion 97
Since the stopper 96 is fitted into the cap 7 and the diameter of the stopper 96 is larger than that of the hole 71, the pin 9 cannot be pulled out. Further, in this state, the second intermediate portion 93 completely enters the inside of the water container 4, and the water flows into the third
is discharged toward the cap 7 through a groove in the intermediate portion 94 of the cap. Since there is no groove in the fourth intermediate portion 95, this water stops at this position and does not drain to the grip portion 98, that is, to the outside of the entire container.

After piercing the pin 9 to the base, the entire container is inverted and placed upright, but there is no need to leave it in an inverted state for a while before placing it upright. This is because, as described above, water travels through the groove of the pin 9 and spreads throughout the quicklime both upward and downward as soon as the pin is pierced.

Water vapor is generated inside the metal can 2 as a result of reaction heat generation, but this water vapor passes through the steam vent hole 32 provided in the lid 3 of the metal can and is separated from the label 6 by internal pressure and heat. It passes between the lid 3 and is discharged between the lid 3 and the cap 7, where it is cooled. If the internal pressure further increases, the steam is further discharged to the outside through the steam venting groove 78 of the cap 7.

Incidentally, the increase in internal pressure caused by the increase in temperature of the contents and the air in the head space above them is absorbed by the deformation of the flexible lid 8, as shown in FIG. 2b.

It goes without saying that instead of quicklime C, compounds that generate heat when reacting with water, such as dolomite lime and magnesium chloride, can be used.

[Effects] According to the cap of the present invention, a pin is attached to the outside of the cap so that it does not come off accidentally during transportation, and can be easily removed.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the entire container according to the present invention, Figure 2 is a sectional view of the entire container according to the present invention.
Figure a is a perspective view of the pin, Figure 2 b is an explanatory diagram of the entire container (inverted state) with the pin pierced, Figure 3 a is a perspective view of the plastic cap 7 viewed diagonally from above, and Figure 3 b is Perspective view from diagonally below, 3rd
Figure c is an explanatory diagram of the main parts when taking out the pin, Figures 4a and b are explanatory diagrams showing other examples of pin tip locking means,
FIG. 5 is a sectional view of the entire conventional container. 1...Container body, 2...Metal can, 3...Metal can lid, 31...Pin piercing hole, 32...Steam release hole, 4...Water container, 5...Buffer sex sheet, 6...plastic film label,
7... Plastic cap, 71... Piercing hole, 72... Peripheral wall of cap, 73... Fitting portion,
74...Flat portion, 75...Concave portion, 76...Pin tip locking means, 77...Grip portion locking means, 78...
Steam release groove, 8... Lid of container body, 8'... Lid of conventional container body, 81... Plastic ring, 9... Pin, 91... Tip, 92... First
middle part, 93... second middle part, 94... third
95...Fourth middle part, 96...Stopper, 97...Fifth middle part, 98...Grip part, A...Contents, B...Water, C...Quicklime.

Claims (1)

[Claims for Utility Model Registration] A cylindrical peripheral wall, a cylindrical peripheral wall formed at one end of the peripheral wall,
It consists of a fitting part that fits into the outer periphery of the container, and a top part that connects to the other end of the peripheral wall, and the top part includes a peripheral part that connects to the peripheral wall, and a recess that connects to the peripheral part and is recessed toward the container side. A pin tip locking means is provided on the periphery of the top surface portion for locking a pin formed with a grip portion having a hexagonal cross section or a polygon with a larger diameter and a maximum diameter and a minimum diameter substantially perpendicular to each other. and a pin gripping portion locking means is formed so as not to protrude from the peripheral edge, and the pin gripping portion locking means has a width approximately equal to a maximum diameter of the pin gripping portion and a width approximately equal to a minimum diameter of the pin gripping portion. A plastic cap comprising a hollow part having a height and a closed part located above the hollow part and narrower than the width of the empty part and larger than the minimum diameter of the grip part.