JPH0333662Y2 - - 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. Furthermore, 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 are provided around this hole for releasing steam.
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, 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 beginning of the reaction is generally rapid, and along with this, water vapor is rapidly generated.
The pressure inside the metal can 2 also increases. After being left in this inverted state for a while, the cap 7' is placed on top, and the contents A are heated by leaving it upright for several minutes. The water vapor generated inside the metal can 2 is usually
After placing it correctly, open the piercing hole 31 and the steam vent hole 3.
2, the label 6 is peeled off by internal pressure, and is discharged between the lid 3 and the cap 7'. 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 developing 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 Accordingly, it is an object of the present invention to provide a cap having attachment means on its outer surface that can 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 connected to the peripheral wall, and a recess connected to the peripheral edge and recessed toward the container side. It has a pin tip locking means and a pin gripping portion locking means in a state that it does not protrude from the pin, and the pin gripping portion locking means has an empty portion approximately equal to the diameter of the locking portion of the pin and an upper portion of the empty portion. To provide a plastic cap characterized in that it comprises a narrower closing 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 after first locking the tip of the pin, the grip is pushed in to release the pin. The locking part is locked in the empty part. In order to take out the pin, on the contrary, it comes off by pulling on the grip, so it does not come off accidentally during transportation, and it is also easy to take out.

[Description of Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 of the drawings is a cross-sectional view of the entire container according to the present invention, FIG. Figures a and b are a perspective view of the plastic cap 7 seen from an upper diagonal direction and a perspective view seen from a lower diagonal direction, and Figures 4a and b are explanatory diagrams showing other examples of the pin tip locking means. be.

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. By pulling a pull tab (not shown), the lid 8 is peeled off from the ring 81 and the lid 8 is opened completely 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 toward the inner container side at the center portion, and this recessed portion 7
5 has a hole 71 for piercing the pin 9 in the center thereof, and the recess 75 has a taper toward this hole 71. In addition, the flat portion 74 of the periphery has a pin tip locking means 76 for fixing the tip end portion 91 of the pin 9 and a pin grip portion locking means 77 for fixing the vicinity of the grip portion 98 of the pin 9 in a part thereof. It is formed so as not to protrude from the peripheral edge. Furthermore, as can be seen from FIG. 3b, a steam release groove 78 consisting of a thin portion is provided on the inside of the peripheral wall 72 and a portion of the inside of the fitting portion 73.

The pin 9 is as shown in FIG. 2a, and consists of a sharp tip 91, a grip 98, and a rod-shaped intermediate portion between the two. In the illustrated example, the intermediate portions include a first intermediate portion 92, a second intermediate portion 93, and a third intermediate portion.
middle part 94, fourth middle part 95, stopper 9
6 and a locking portion 97. The tip portion 91, the first intermediate portion 92, and the third intermediate portion 94 have a plurality of grooves in the axial direction, and the second intermediate portion 93 and the fourth intermediate portion 95 have no grooves. This groove may be a spiral groove in addition to a groove parallel to the axis as shown.

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 locking portion 97 is fitted and locked to the locking means 77.
The locking means 77 has a hollow portion approximately equal to the diameter of the locking portion 97 of the pin 9 and a closed portion above this which is narrower than the hollow portion, and utilizes the elasticity of the plastic to hold the pressed locking portion 97. For this reason, the hollow portion has approximately the same diameter as the piercing hole 71.

In addition, the pin tip locking means 76 may be of a type that is pushed in from above as shown in FIG. It may be 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 stops at this position without passing through the second intermediate portion 93, and diffuses into the 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 locking portion 97 fits into the cap 7, and the stopper 96 has a larger diameter than the hole 71, making it impossible to pull out the pin 9. Further, in this state, the second intermediate portion 93 completely enters the inside of the water container 4, and the water is discharged toward the cap 7 through the groove of the third intermediate portion 94. 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, the pin is attached to the outside of the cap so that it does not come off accidentally during transportation, and it can be easily removed.

[Brief explanation of drawings]

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 seen diagonally from above, and Figure 3 b is the bottom. Perspective view from an oblique direction, No. 4
Figures a and b are explanatory diagrams showing other examples of pin tip locking means, and Figure 5 is a sectional view of the entire conventional container. 1... Container body, 2... Metal can, 3... Metal can lid,
31... Hole for pin piercing, 32... Hole for venting steam, 4... Water container, 5... Cushioning sheet, 6... Plastic film label, 7... Plastic cap, 71... Hole for piercing, 72... Peripheral wall of cap, 73... Fitting portion, 74... Flat portion, 75... Recess, 76... Pin tip locking means, 77... Grip portion locking means, 78... Steam venting groove, 8... Lid of container body,
8'... Lid of conventional container body, 81... Plastic ring, 9... Pin, 91... Tip, 92... First
intermediate part, 93... second intermediate part, 94... third intermediate part, 95... fourth intermediate part, 96... stopper,
97...Locking part, 98...Grip part, A...Contents, B...
Water, C...quicklime.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of 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 a top surface portion connected to the other end of the peripheral wall. , the top portion includes a peripheral edge portion connected to the peripheral wall;
It consists of a recessed part connected to the peripheral edge and recessed toward the container side, and the peripheral edge of this top surface part has a pin tip locking means and a pin grip part locking means in a state that does not protrude from the peripheral edge, and this pin A plastic cap characterized in that the grip portion locking means comprises a hollow portion having a diameter substantially equal to the diameter of the locking portion of the pin and a closed portion located above the hollow portion and narrower than the hollow portion. (2) The plastic cap according to claim 1, which is characterized by having a hole in the center of the top portion with a diameter substantially equal to the diameter of the empty portion.