JPH0315504Y2 - - 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.

[Problem that the invention attempts to solve]

As mentioned above, conventional containers require the steps of removing the plastic cap, removing and piercing the pin, pulling it out, and reattaching the cap, which is extremely cumbersome and error-prone.

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, during transportation, there is no possibility of accidental damage. I needed to put it on without it coming off.

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 problems]

To achieve this objective, the present invention consists of a cylindrical peripheral wall, a fitting part formed at one end of the peripheral wall that fits into the outer periphery of the container, and a top surface part connected to the other end of the peripheral wall. , the top surface portion consists of a peripheral edge connected to the peripheral wall, and a recess connected to the peripheral edge and recessed toward the container side, and the pin tip is engaged with the peripheral edge of the top surface portion without protruding from the peripheral edge. It has a locking means and a pin gripping portion locking means, and the pin gripping portion locking means includes a gripping portion introduction notch having a diameter approximately equal to the diameter of the pin gripping portion, and a gripping portion gripping portion provided laterally below the notch. To provide a plastic cap characterized by comprising a cavity.

[Effect]

The plastic cap of the present invention has a pin tip locking means and a pin gripping portion locking means on the outer surface, and after first locking the tip of the pin, the grip is pushed through the introduction notch and is inserted into the cavity. By twisting (shifting the grip part), the grip part of the pin is locked in the hollow part. To take out the pin, twist the grip to remove it, so it won't come off accidentally during transportation, and it can be taken out easily.

[Explanation of Examples]

Embodiments of the present invention will be described below 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. 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. It consists of a peripheral edge 74 and a recess 75 that is recessed inward (towards the container) at the center, and in the center of this recess 75 there is a hole 71 for piercing the pin 9.
The recess 75 tapers toward the hole 71. Further, a portion of the peripheral edge portion 74 includes pin tip locking means 76 for fixing the tip end portion 91 of the pin 9 and pin grip portion locking means 77 for fixing the grip portion 98 of the pin 9. 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 fifth intermediate 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
There is no groove in the intermediate portion 95 of. 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 is locked in the pin tip locking means 76, the grip part 98 is pushed in through the introduction notch 771, and then the hollow 77
By twisting in two directions (shifting the grip portion 98), the grip portion 98 of the pin 9 is fitted and locked into the locking means 77. The same applies to the pin tip locking means 76, but
Preferably, cavities 762 and 772 face in opposite directions, as shown in Figure 3a.

In addition, the pin tip locking means 76 may be of a type that is pushed in from above as shown in FIG. 4a, or of a type that locks with a hole as shown in FIG. 4b. Also good.

This container is used as follows.

That is, remove the pin 9 from the cap 7 (there is no need to remove the cap 7 from the container body at this time), turn the entire container upside down, and insert the hole 71 in the cap 7.
Insert pin 9 from there. Pin tip 91 is water container 4
As soon as the water reaches the pin 9 and breaks, 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 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.

〔effect〕

According to the cap of the present invention, a pin is attached to the outside of the cap so that it will not come off accidentally during transportation and 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...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...Peripheral portion, 75...Concave portion, 76...Pin tip locking means, 762...Cavity, 77...Grip portion locking means, 771...Introduction notch, 772...Cavity,
78... Steam release groove, 8... Lid of container body,
8'...Lid of conventional container body, 81...Plastic ring, 9...Pin, 91...Tip, 9
2...First intermediate part, 93...Second intermediate part, 9
4...Third intermediate part, 95...Fourth intermediate part, 9
6...stopper, 97...fifth intermediate 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. The periphery of this top surface portion has a pin tip locking means and a pin gripping portion locking means in a state that does not protrude from the peripheral edge, and this pin gripping portion locking means locks the gripping portion of the pin. 1. A plastic cap comprising a notch for introducing a grip portion having a diameter substantially equal to the diameter thereof and a cavity for gripping the grip portion provided laterally below the notch.