JPH036281Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vacuum double bottle used as an inner bottle for magic bottles, etc., and particularly relates to a double-ended vacuum bottle having openings at the top and bottom. .

Vacuum double bottles, which are the middle bottles of magic bottles that have been commonly used in the past, have an opening only at the top, through which the liquid inside is poured and poured.
However, in recent years, there has been a demand for magic bottles that are injected from the top and dispensed from the bottom, and magic bottles that are equipped with a liquid level meter for the liquid content. Bottles have come to be needed.

By the way, since such a double-ended vacuum double bottle has an opening at the bottom, heat leaks from the bottom opening in addition to the heat leaking from the top opening in conventional vacuum double bottles. arise. Therefore, it is necessary to suppress these heat leaks to a minimum. Moreover, since the outer bottle and the inner bottle are joined at two places, upper and lower, in a double-ended vacuum double bottle, the behavior when an impact is applied is completely different from that of a conventional vacuum double bottle. Therefore, it must have sufficient strength under this unconventional behavior.

As a conventionally known double-ended vacuum double bottle,
There is a product described in the -5340 publication, but due to restrictions from the manufacturing method shown in the publication, the upper opening has the same diameter as the body, and the lower tube is formed by reducing the diameter of the body. Therefore, it is not possible to make the diameter sufficiently small.
Therefore, a large amount of heat leaks from the upper and lower openings, resulting in insufficient heat retention.

In addition, Utility Model Publication No. 37-1194 shows a bottle in which the upper and lower openings have the same diameter, but in general, in this type of double-ended magic bottle, the liquid content is injected from the upper opening. , because it is poured from the lower pipe or connected to a liquid meter, so if the upper and lower openings have the same diameter, the upper mouth is too small and inconvenient for injecting the contents, and the lower part is inconvenient. If the tube is larger than necessary, it will leak heat and be difficult to use. The publication also discloses a conventional example in which the upper opening has a large diameter and the lower tube has a small diameter. However, in this example, the difference in diameter between the upper and lower openings is extremely large, so the strength is greatly reduced. In other words, when different movements occur between the inner bottle and the outer bottle due to an impact, etc., the upper part can sufficiently support the movement because the circumference of the opening is long, but the lower part can sufficiently support the movement. If the diameter of the upper and lower openings is excessively large, the upper opening acts as if it were fixed to the lower tube, and only the small circumference of the lower tube can support the inside and outside. The relative movement of both bottles must be accommodated. Therefore, when the difference in diameter between the upper and lower openings is too large, as in the conventional example, the vacuum double bottle has poor strength and is extremely fragile. This is the special public service mentioned earlier.
The same applies to the double-ended vacuum bottle described in Publication No. 5340.

Furthermore, Japanese Patent Publication No. 50-25391 also shows an example of a double-ended vacuum bottle, but this one has a single bottom tube, and this part has the structure as a vacuum double bottle. Since it is not heat-retaining, it has the disadvantage of poor heat retention.

The purpose of this invention is to solve these problems, and the content liquid can be poured out from the lower pipe or connected to a liquid level meter to visually check the content liquid level from the outside. The purpose of this invention is to provide a double-ended vacuum bottle that minimizes leakage and has high strength.

Therefore, the present invention consists of an inner bottle and an outer bottle,
A mouth is formed at the top and a lower tube is formed at the bottom, the inner bottle and the outer bottle are joined at the periphery of the mouth and the tip of the lower tube, and a double-ended vacuum doublet is created in which the gap between the inner bottle and the outer bottle is evacuated. In a heavy bottle, the diameter of the mouth is 3/5 or less of the outer diameter of the body, and the diameter of the lower tube is smaller than the diameter of the mouth and larger than 1/4 thereof,
forming a cylindrical part on the outer periphery of the lower tube with a diameter equal to or larger than that of the lower tube, and making the gap between the lower tubes of the inner bottle and the outer bottle in the lower tube at least 2.5 mm;
It is characterized by an exhaust pipe provided at an eccentric position at the bottom of the outer bottle.

FIG. 1 shows an example of the double-ended vacuum bottle of the present invention. 1 is a double-ended vacuum bottle,
It consists of an inner bottle 1a and an outer bottle 1b, and has a cylindrical body 2 in the center.The diameter of the upper part of the body 2 is gradually reduced to form a neck 3, and at the upper end of the neck 3. The mouth portion 4 is open. On the other hand, a bottom part 5 is formed in the lower part of the body part 2 , and a lower pipe 6 is protruded from the center of the bottom part 5 . is open.
The inner bottle 1a and the outer bottle 1b are respectively formed with body parts 2a, 2b, neck parts 3a, 3b, bottom parts 5a, 5b, and lower mouth pipes 6a, 6b with a slight interval 8, and the upper and lower ends of the neck parts 3a, 3b. Mouth tubes 6a, 6b
The inner bottle 1a and the outer bottle 1b are joined at joints 9 and 10 at the leading end of the inner bottle 1a and the outer bottle 1b. 11 is outer bottle 1b
It is an exhaust pipe provided at an eccentric position on the bottom portion 5b of the exhaust pipe, and after exhausting the air in the gap 8, it is sealed and maintains the inside of the gap 8 in a vacuum.

Therefore, in the present invention, the diameter of the opening 4 is 3/5 or less of the outer diameter of the body 2, and the diameter of the lower tube 6 is smaller than the diameter of the opening 4 and larger than 1/4 thereof. It has become a thing. If the diameter of the mouth part 4 is larger than 3/5 of the outer diameter of the body part 2, the mouth part 4 will be large in relation to the internal capacity of the vacuum double bottle, resulting in large heat leakage and poor heat retention. Furthermore, if the ratio between the diameter of the lower tube 6 and the diameter of the mouth portion 4 becomes extremely large, the strength of the double-necked double-necked vacuum bottle 1 decreases as already mentioned. In this type of double-necked vacuum double bottle 1, the upper opening 4 should be as large as possible without reducing the heat retention ability, making it easier to handle, and the lower tube 6 should be as small as possible without impeding the flow of the contents. is preferable for improving heat retention. From this perspective, the inventors varied the ratio of the diameters of the mouth portion 4 and the lower tube 6 and investigated changes in the strength, and found that the lower tube 6
It has been found that when the diameter of the double-ended vacuum bottle 1 becomes less than 1/4 of the diameter of the mouth portion 4, the strength of the double-ended vacuum bottle 1 rapidly decreases. This tendency has almost no relation to the specific dimensions of the two apertures, and depends only on the ratio between the two. Therefore, in the present invention, the diameter of the lower tube 6 is set to be 1/4 or more of the diameter of the mouth portion 4. In addition, the lower tube 6 should have a smaller diameter than the opening 4 from the standpoint of heat retention, and should be as small as possible without exceeding the above ratio or impeding the flow of the liquid inside. Preferably 25 to 30 of the diameter of the mouth portion 4
It is better to set it as a percentage.

Further, in the present invention, a cylindrical portion having a diameter equal to or larger than that of the lower tube 6 is formed on the outer periphery of the lower tube 6. The outer periphery of the lower tube 6 must have a cylindrical portion in order to attach a connecting member of a conduit for guiding the content liquid to the spout of the magic bottle or the liquid meter. The length of the cylindrical portion needs to be equal to or greater than the diameter of the lower tube 6 in order to reliably connect the conduits and to prevent heat leakage from the lower tube 6.

To describe a more preferred embodiment of the present invention,
The diameter of the lower tube 6 is suitably 10 to 15 mm. If it is less than 10mm, the flow of the liquid will be poor when pouring it out or guiding it to the liquid meter. Moreover, if it exceeds 15 mm, the heat retention ability will decrease, which is not preferable. Therefore 10-15mm
is suitable, more preferably about 12 mm. The diameter of the upper opening 4 is equal to the diameter of the lower pipe 6.
It may be set freely as long as it does not exceed twice that. If the diameter of the lower tube 6 is 12mm, 40~
48mm is suitable. Furthermore, the outer diameter of the body 2 is the mouth 4.
You just have to set it freely within a range that is not excessively small compared to the diameter of the opening, and if the diameter of the opening 4 is 45 mm, then the
Approximately 200mm is appropriate.

Furthermore, a gap 8 between the inner bottle 1a and the outer bottle 1b
is preferably at least 2.5 mm at all positions. In particular, if the gap between the lower tubes 6a and 6b in the lower tube 6 is less than 2.5 mm, the plating liquid will not sufficiently penetrate into the gap when plating the inner surface of the outer bottle 1b and the outer surface of the inner bottle 1a, resulting in poor plating. There is a risk. In particular, in the lower pipe 6, air is sealed at the end of the gap, making it difficult for the plating liquid to penetrate.
The gap between and 6b should be at least 2.5 mm.

Next, in a normal vacuum double bottle, the exhaust pipe 1
1 is normally provided at the center of the bottom 5, but in the double-ended vacuum bottle of the present invention, the center of the bottom 5 is occupied by the lower pipe 6, so the exhaust pipe 11 must be provided at an eccentric position. I don't get it. Therefore, when the double-ended double-ended vacuum bottle 1 is installed in the magic bottle main body, it is supported by a push-up body from the bottom of the magic bottle main body, and the push-up body is pushed up from the bottom 5 of the double-ended vacuum bottle 1. Pressure is applied between the lower pipe 6 and the exhaust pipe 11 in the above. Therefore, the exhaust pipe 11 is provided as close to the outer periphery of the bottom part 5 as possible, and the exhaust pipe 11 and the lower pipe 6
It is preferable to form a sufficient space between the two. However, in the plating process, etc., it is necessary to process double-ended double-ended bottles in a horizontal position, so the exhaust pipe 1
It is not preferable that the cylindrical surface protrudes from the cylindrical surface that is an extension of the outer periphery of the body portion 2. Furthermore, if the exhaust pipe 11 protrudes from the cylindrical surface, a storage space for the exhaust pipe 11 must be provided due to the structure of the magic bottle, which increases the overall shape of the magic bottle, which is also undesirable. Furthermore, when attaching the exhaust pipe 11 to the outer bottle 1b, while rotating the outer bottle 1b and the exhaust pipe 11 about the axis of the exhaust pipe 11, a gas burner is inserted into the outer bottle 1b to heat the attached part. , the extension line of the axis of the exhaust pipe 11 is the outer bottle 1
It is preferable for processing to pass through the diameter of b.

FIG. 2 shows an example of the use of the double-ended vacuum bottle 1 of the present invention, in which the lower tube 6 is connected to a liquid meter. A double-ended vacuum bottle 1 is housed in a magic bottle body 12, and has an upper shoulder body 13 and a bottom body 1.
4 is held by a push-up body 16 that is pushed up by a screw body 15 screwed into the center of the body. The inside of the double-ended vacuum bottle 1 is pressurized by the air pump 17, and the liquid content 18 is poured out from the spout 20 through the pumping pipe 19.
A conduit 22 is connected to the lower end of the lower tube 6 of the double-ended vacuum bottle 1 via a connecting member 21.
The tip of the is connected to the water level pipe 23, and the window 24 is connected from the outside.
The water level of the liquid content can be visually checked through the tank.

According to the present invention, the lower tube 6 can be used to connect to a liquid meter so that the content liquid level can be visually checked from the outside, and the lower tube 6 can be connected to a spout,
It can also be injected from the top and dispensed from the bottom. Furthermore, since the present invention has the above-described configuration, the deterioration in heat retention performance due to the provision of the lower tube 6 can be minimized, and the strength against external forces can be made sufficiently large.

[Brief explanation of the drawing]

Fig. 1 is a central vertical cross-sectional view showing an embodiment of the double-ended vacuum bottle of the present invention, and Fig. 2 is a central vertical cross-sectional view of a tea bottle equipped with a liquid level meter as an example of the use of the present invention. It is. 1...Double-ended vacuum double bottle, 1a...Inner bottle, 1b
... Outer bottle, 2 ... Body, 4 ... Mouth, 5 ... Bottom, 6 ... Lower pipe, 8 ... Gap, 11 ... Exhaust pipe.

Claims (1)

[Claims for Utility Model Registration] 1. Consisting of an inner bottle and an outer bottle, having a mouth at the top and a lower tube at the bottom, the inner bottle and the outer bottle are joined at the periphery of the mouth and the tip of the lower tube. In a double-ended vacuum bottle with a vacuum in the gap between the inner bottle and the outer bottle, the diameter of the mouth should be 3/5 or less of the outside diameter of the body, and the diameter of the lower tube should be the diameter of the mouth. smaller and larger than 1/4,
A cylindrical part with a diameter equal to or larger than the diameter of the lower tube is formed on the outer circumference of the lower tube, and the gap between the lower tubes of the inner bottle and the outer bottle in the lower tube is at least 2.5 mm, and the eccentric position of the bottom of the outer bottle is Double-ended double-ended vacuum bottle characterized by being provided with an exhaust pipe 2 Double-ended vacuum double-ended bottle according to claim 1 of the utility model registration, in which the diameter of the lower pipe is 10 to 15 mm 3 Inner bottle and outer bottle 4. A double-ended double-ended vacuum bottle according to claim 1 of the utility model registration claim, in which the gap between the bottle and the bottle is 2.5 mm or more at all positions. The double-ended vacuum bottle 5 according to claim 1 of the utility model registration claim, in which the exhaust pipe is provided at a position where it does not protrude beyond the extended surface of the outer periphery of the body. The first scope of claims for utility model registration that passes the
Double-ended vacuum bottle as described in section