TWI412471B - Water supply bottle - Google Patents

Abstract

A water server bottle comprises a bottom section (11), a body section (12) that continues from the periphery of the bottom section (11), a shoulder section (14) that slants upward from the upper end of the body section (12) toward the center part, and a tubular neck section (13) that is provided in the center part, and is formed entirely using a PET resin. The bottle is structured such that the body section (12) has a bellows-like section (21) that can telescope in the vertical direction, and a tapered section (24) that tapers as it extends toward the bottom section (11) is provided between the bellows-like section (21) and the bottom section (11). As a result, it is possible to provide a water server bottle with which no smell is absorbed by the liquid filling it, the shape can be maintained autonomously, and almost all of the liquid filling it can be dispensed without supply of any air therein.

Description

Water supply bottle

The present invention relates to a bottle for a water supply filled with various liquids such as mineral water.

The present application claims the priority of Japanese Patent Application No. 2008-187700, filed on Jan. 18, 2008, and the Japanese Patent Application No. 2008-269087, filed on Jan. The citation is described here.

In recent years, as the concern for health has increased, the concern for drinking water has gradually increased. In the case of urban water, there is a case where drinking water does not use tap water and various kinds of mineral water are used. Although it is easy to purchase mineral water in convenience stores, the capacity of one bottle is about 2 liters. When the consumption is high, the bottle purchase rate becomes higher, and the cost and labor will increase. Therefore, a service has been started in which a device called a water supply device is installed in a home or an office, and a special bottle is installed in the device to easily obtain a good quality drinking water at any time. This bottle should be made to have a large capacity in order to reduce the exchange frequency, but it must also be considered in the case of exchange. Currently widely used are products that use bottles from 10 liters to 15 liters.

Most of the bottles used in the water supply device (hereinafter referred to as the supplier) are made of a polycarbonate resin having excellent strength. However, this resin lacks deformability and requires a large space for storing empty bottles. When the liquid filled in the bottle is supplied to the supplier, the air must be sent into the inside of the bottle, but there is a mixture of the bacteria and the air entering together to cause deterioration of the water quality. Therefore, bottles using softer materials have also been popularized (Patent Documents 1 and 2). The bottle of the soft material can be reduced in volume during storage or disposal, and is naturally squeezed by the atmospheric pressure as the liquid is discharged, so that it is not necessary to feed the air into the interior, and it is excellent from the viewpoint of hygiene. However, the above soft bottle is not easily deformed because it is arbitrarily deformed when the liquid is filled. Therefore, a form called Bag In Box (BIB) combined with a cardboard box has also been developed. Further, a folding container capable of reducing the storage space has been proposed (Patent Document 3).

Patent Document 1: Japanese Patent No. 4084342

Patent Document 2: Japanese Patent No. 4113871

Patent Document 3: Japanese Patent No. 3354279

The above Patent Document 1 discloses a cassette container in which a flange, a claw, or the like is formed on the outer edge of the bottom of the bottle. Thereby, when the bottle is assembled upside down to the supplier, the flange and the claw are locked to the support member or the like in the periphery to prevent deformation of the cassette. Patent Document 2 discloses that in order to improve workability in filling a beverage, a locking portion that supports the mouth portion of the tubular portion is provided in the cassette container, and a support frame is disposed around the deformation container to prevent deformation of the cassette container. As described above, when the container is soft, it is necessary to prevent the deformation of the container, and the structure of the supplier is complicated. Further, in Patent Document 1 and Patent Document 2, as a material of the bottle, a polyethylene resin is exemplified. Although the resin is excellent in softness, it has a certain odor in a general environment, and when used as a material for a bottle, the odor also drifts to the internal liquid, and there is an uncomfortable feeling when drinking.

Patent Document 3 discloses a folded container in which various creases are formed on the side surface. This container, from manufacture to filling of the liquid between the interiors, reduces the volume to reduce the storage space. By forming the above creases, the volume can be easily reduced even when a material harder than a polyethylene resin is used. However, the container disclosed in Patent Document 3 is intended to reduce the volume between the production and the filling liquid. In Patent Document 3, there is no description about the operation when it is attached to the supplier, and it is not clear whether the liquid can be smoothly discharged.

The present invention has been made to solve the above problems, and an object thereof is to provide a liquid in which an odor does not drift to a filled liquid and can maintain a stand-up shape, and it is possible to discharge the filled liquid without sending air into the inside. A full bottle of water supply.

A bottle for a water supply device according to the present invention includes a bottom portion, a body portion continuous from a periphery of the bottom portion, a shoulder portion inclined upward from an upper end edge of the bottle body portion toward a center portion, and a cylindrical neck portion disposed at the center portion The whole body is formed of PET (polyethylene terephthalate) resin; the body portion has a snake belly that is stretchable in the up and down direction.

Since the present invention uses the PET resin, the shape of the stand alone can be maintained even when the liquid is filled, and the function of restricting the deformation of the bottle is not required to be attached to the supplier, etc., the structure of the device can be simplified, and the smell is not as bad as the polyethylene resin. The taste drifts to the liquid. Moreover, since the body portion of the bottle has a snake belly, the squeezeability of the bottle can be improved.

As described below, the present invention has other aspects. Therefore, the disclosure of the invention herein is only a part of the invention and is not intended to limit the scope of the invention as claimed.

Hereinafter, the present invention will be described in detail. The embodiments described below are merely examples of the invention, and the invention can be modified in various forms. Therefore, the specific configuration and function described below are not limited to the scope of the patent application.

The water supply bottle of the present embodiment includes a bottom portion, a body portion continuous from the periphery of the bottom portion, a shoulder portion inclined upward from the upper end edge of the bottle body portion toward the center portion, and a cylindrical bottleneck disposed at the center portion. The whole body is formed of a PET resin; the body portion has a snake belly that is stretchable in the up and down direction.

The bottle of this embodiment is composed of a bottom portion, a body portion, a shoulder portion, and a neck portion, similarly to a general bottle. The neck portion is formed in a cylindrical shape and has a function of a flow path when the liquid is filled into the bottle or the liquid inside is discharged. This bottle neck is placed at the top of the bottle in the normal storage state. The bottom portion is located on the opposite side of the neck portion and is a planar portion that contacts the ground or the like. The body portion is a wall portion that is erected from the entire peripheral portion of the bottom portion and extends substantially vertically. However, the connecting portion between the bottle body and the bottom portion may have a curved surface. At this time, the curved surface portion of the connecting portion is a part of the bottle body portion. The shoulder portion connects the upper portion of the body portion and the lower portion of the neck portion to be inclined so as to gradually move away from the bottle neck portion toward the neck portion. When the shoulder is viewed from the side, it is a conical or pyramidal shape with the neck of the neck. Further, the connecting portion between the body portion and the shoulder portion may have a curved surface. At this time, the curved surface portion of the connecting portion is a part of the shoulder portion.

When the bottle of the present embodiment is viewed from above, the shape thereof may be a square, a rectangle, a circle, or the like. However, when it is a square, a rectangle, or the like, the arc is smoothly joined to the both sides at the corner portion, and the deformation can be made easier. As a material of the entire bottle, a PET resin (polyethylene terephthalate resin) is used. The PET resin is odorless at normal temperature, and there is no odor drifting to the inside of the liquid filled in the inside. The PET resin is harder than the polyethylene resin, and is not deformed greatly in the state of being filled with a liquid, and can maintain the shape of standing independently.

The body portion of the bottle of the present embodiment is not a simple wall shape but a snake belly in which a plurality of snake belly are arranged. The snake's abdomen is the same as the general snake's abdomen. When viewed from the longitudinal section, the bottle body is bent into a zigzag shape, so it is formed as a bottle around the bottle. According to this configuration, since the flexibility of the bottle is improved, the volume can be reduced at atmospheric pressure.

The snake's abdomen may be formed integrally with the body of the bottle, and may be formed in one part of the body of the bottle. In one embodiment of the present invention, the snake abdomen is not formed over the entire area from the upper side to the lower side of the body portion, but is formed above the body portion. In the present embodiment, a tapered portion that is gradually reduced in cross-sectional area near the bottom of the snake may be formed below the snake abdomen.

In other words, the water supply bottle of the embodiment includes a bottom portion, a body portion continuous from the periphery of the bottom portion, a shoulder portion inclined upward from the upper end edge of the bottle body portion toward the center portion, and a center portion disposed at the center portion. a cylindrical neck portion; the whole body is formed of a PET resin; the body portion has a snake belly that is expandable and contractable in the up and down direction, and a tapered portion that is narrower toward the bottom portion between the snake abdomen and the bottom portion.

The taper does not extend vertically, but the closer it is to the bottom, the narrower it is. However, it may be partially perpendicular to the connection portion of the snake's abdomen or the like. By providing the tapered portion inclined in this manner, the atmospheric pressure acting on this portion faces the center of the bottle, so that as the internal liquid is discharged, the tapered portion becomes trapped inside the bottle.

As described above, the bottle of the present embodiment is composed of a neck portion, a shoulder portion, a bottle portion, and a bottom portion. However, when attached to a water supply device, the bottle is vertically inverted, and the bottle neck portion is downward and the bottom portion is upward. Therefore, the shoulder has an important function of feeding the filled liquid into the neck portion. As described above, since the shoulder portion is inclined toward the neck portion, the liquid can surely flow into the neck portion.

As the inner liquid discharge bottle is squeezed, the bottle does not deform irregularly, but gradually deforms from the portion where the weight of the liquid itself does not act, that is, from the portion above the liquid surface. Therefore, when the bottle is mounted on the water supply, in the initial stage, the portion above the liquid surface is gradually pressed by the atmospheric pressure.

In the embodiment in which the body portion has the tapered portion, in the initial stage, the tapered portion above the liquid surface is gradually pressed by the atmospheric pressure. When the tapered portion is substantially squeezed, the snake's abdomen is gradually squeezed as the liquid level is lowered to reach the snake's abdomen. At this time, the pressed tapered portion enters the inside of the snake's abdomen, so that the volume can be reduced with high efficiency. Finally, at the stage where the snake's abdomen is completely squeezed, there is space left only around the shoulder and the belly of the snake.

In addition, the actual bottle, for the internal seal and the connection with the water supply, must be installed at the front end of the bottle neck, etc., but this is no different from the past. As long as the deformation of the bottle is not affected, the lifting ring is provided at the bottom to improve the convenience of transportation.

When the tapered portion is formed in the body portion, the height of the tapered portion may be 60% to 80% of the height of the snake's abdomen. In the embodiment in which the snake abdomen is not formed in the entire area of the bottle body and the tapered portion is formed between the belly and the bottom of the bottle, when the bottle is squeezed by the atmospheric pressure, the tapered portion is pulled into the belly of the snake, and the belly of the snake is cut. The function of the internal volume. When the tapered portion is extremely short, the amount of deformation is small, and it is difficult to enter the inside of the snake's abdomen. On the contrary, when it is extremely long, a sufficient snake's abdomen cannot be ensured. Therefore, it has been found that when the numerical range is set as described above, the volume can be most effectively reduced. In addition, this range of values is based on the state of the internal unfilled liquid.

In the bottle of this embodiment, a plurality of ribs may be formed on the shoulder surface. The shoulder has the function of guiding the liquid in the bottle to the neck portion, and is less deformed by the deformation of the snake abdomen and the tapered portion. The formation of ribs on the shoulder surface is used to increase the rigidity, that is, to resist external forces. The ribs also have a function of reliably discharging the liquid. Further, the rib means that the partial semicircular shape of the shoulder is swelled and extends linearly. The direction and number of the ribs can be determined freely, but it is preferably arranged radially around the neck portion.

Hereinafter, a bottle for a water supply device according to an embodiment will be described with reference to the drawings. In the following description, a bottle in which a snake abdomen and a tapered portion are formed in a bottle body will be described.

Fig. 1 shows the shape of the bottle 10 of this embodiment. The bottle 10 is substantially square when viewed from above, and is composed of a bottom portion 11 located below, a body portion 12 surrounding the side surface, a shoulder portion 14 covering the upper surface, and a neck portion 13 projecting cylindrically from the center of the shoulder portion 14. A cover 31 for sealing is attached to the neck portion 13. The bottom portion 11, which is the bottom portion of the bottle 10 as described in the text, has a simple plate shape and protrudes from the outer wall portion of the bottle body portion 12 to the upper side. The body portion 12 is composed of a tapered portion 24 near the bottom portion 11 and a snake belly 21 above it. The tapered portion 24 has a narrower cross section toward the bottom portion 11. The snake abdomen 21 is a structure in which a plurality of snake belly 22 are stacked. The height of the snake's abdomen 21 is reduced by squeezing the respective bellows 22.

Above the body portion 12, a shoulder portion 14 that is inclined upward from the upper end edge of the body portion 12 toward the center portion is formed. The shoulder portion 14 has a pyramid shape that protrudes toward the neck portion 13. In order to increase the strength, a plurality of ribs 23 are formed in the shoulder portion 14. The entire bottle 10 from the bottom portion 11 to the neck portion 13 is integrally molded from a PET resin. The cover 31 must be sealed to ensure other materials. A slit 32 is formed on the side surface of the lid 31, and by tearing it, only the lid 31 can be detached from the neck portion 13.

2A and 2B show the details of the bottle 10 shown in Fig. 1. Fig. 2A shows the bottle 10 from above, and Fig. 2B shows the bottle 10 from the side. As shown in Fig. 2A, the bottle 10 is based on a square, but the corners are smoothly joined by an arc. A total of eight rows of ribs 23 are radially arranged on the shoulder portion 14. The rib 23 is formed by partially bulging a semicircular shape of the shoulder portion 14, and the rigidity can be improved compared to a simple plate shape. In order to insert the tube assembled to the water supply, a communication hole 33 is formed in the center of the cover 31.

As shown in FIG. 2B, the bottle 10 is composed of the neck portion 13, the shoulder portion 14, the body portion 12, and the bottom portion 11 in order from above. The body portion 12 below the shoulder 14 surrounds the side of the bottle 10. A snake abdomen 21 and a tapered portion 24 are formed in the body portion 12. The boundary between the shoulder portion 14 and the body portion 12 is smoothly joined by an arc, but the arc portion is in the range of the shoulder portion 14. The snake abdomen 21, as viewed from the side cross section, is arranged in a six-row jagged curved bellows 22 to be a structure that is easily squeezed.

Below the snake's abdomen 21, a tapered portion 24 that is narrower toward the bottom portion 11 is formed. In this way, the lower portion of the bottle 10 is tapered, and the atmospheric pressure bottle 10 is easily squeezed toward the inside. The boundary between the tapered portion 24 and the bottom portion 11 is also smoothly joined by an arc, but the arc portion is a range of the tapered portion 24. The bottom portion 11 is a simple plate shape, but the separately manufactured lifting ring 34 is assembled in consideration of the processing at the time of conveyance. This ring 34 is attached to the bottom 11 but can be drawn to the bottom of the figure as needed. In Fig. 2B, the height of the tapered portion 24 is 72% of the height of the snake abdomen 21, which can effectively reduce the volume of the bottle 10.

3A and 3B are the same as Figs. 2A and 2B, showing the details of the bottle 10 shown in Fig. 1. Fig. 3A is a cross-sectional view taken along line A-A of the bottle 10 shown in Fig. 2A, and Fig. 3B is a view of the bottle 10 as seen from below. As shown in FIG. 3A, the thickness of the resin constituting the shoulder portion 14 and the body portion 12 is the same. The stretch of the snake abdomen 21 is increased in the up and down direction, and the volume of the bottle 10 is reduced when the conditions are all available. The shoulder portion 14 preferably suppresses deformation, and the rib portion 23 is formed to increase rigidity. In order to secure the strength, the thickness of the neck portion 13 is slightly increased. At the center of the cover 31, a plug 35 for blocking the communication hole 33 is fitted. At the center of the bottom portion 11, a projection 25 for assembling the eyelet 34 is formed to increase the strength of the periphery thereof in order to ensure strength.

4A and 4B show a state in which the bottle 10 of the present embodiment is attached to the water supplier S. Fig. 4A is an initial stage in which the bottle 10 is installed, and Fig. 4B is a stage in which the consumption of the liquid W is started. In the bottle 10 of the present embodiment, as shown in Fig. 1 and the like, the bottom portion 11 is placed in contact with the ground for storage. However, when the bottle 10 is attached to the water supply device S, the bottle neck portion 13 is turned upside down. In FIGS. 4A and 4B, the specific structure of the water supplier S is not shown, but the pipe P for taking out the liquid W from the bottle 10 is provided at the center of the water supply S. The water supply S is also provided with a support table H for loading the shoulders 14 of the bottle 10. The bottle 10 is filled with various liquids W such as a good groundwater, but at this time, a certain amount of air A remains in advance. This air A is sufficiently considered from the viewpoint of hygiene and does not deteriorate the liquid W. In the initial stage shown in Fig. 4A, one half of the tapered portion 24 is filled with air A.

The shoulder portion 14 is raised in rigidity by the rib portion 23, and the shape does not largely change even if it cannot be in contact with the support table H in a wide range. Since the body portion 12 is also made of PET resin, the shape can be maintained without providing any supporting member.

After the initial stage of FIG. 4A, when the liquid W is gradually consumed, the air corresponding to the consumed amount does not enter from the outside. Therefore, the bottle 10 is pressed by atmospheric pressure. However, there is still a large amount of liquid W inside the bottle 10, which exerts a force on atmospheric pressure due to its own weight. Therefore, in the bottle 10, the portion above the liquid surface is most easily squeezed, and the deformation gradually progresses as shown in Fig. 4B to cause the bottom portion 11 to be depressed.

5A and 5B show the state after FIG. 4B. Fig. 5A is a stage in which about half of the liquid W is consumed, and Fig. 5B is a stage in which substantially the entire amount of the liquid W is consumed. At the stage shown in Fig. 5A, the liquid level reaches the approximate center of the snake abdomen 21. The bellied 22 above the liquid level is squeezed by atmospheric pressure, and the bottom 11 is pulled into the inside of the snake's abdomen 21. Thereafter, the snake abdomen 21 is further squeezed together with the consumption of the liquid W. Finally, as shown in Fig. 5B, the snake abdomen 21 is completely squeezed, and the bottom portion 11 and the tapered portion 24 are pulled into the inside of the snake abdomen 21, greatly reducing the volume of the bottle 10.

As described above, the embodiment of the water supply bottle of the present invention will be described in detail, but the present invention is not limited to the above embodiment.

The number of the ribs shown in the above embodiment and the length of the abdomen or the tapered portion are merely examples, and may be designed to be different from the above embodiment.

The present invention has been described with reference to the preferred embodiments of the present invention, and various modifications may be made without departing from the spirit and scope of the invention.

The present invention is very useful in a bottle for a water supply device filled with various liquids such as mineral water.

10. . . bottle

11. . . bottom

12. . . Bottle body

13. . . Bottleneck

14. . . Shoulder

twenty one. . . Snake belly

twenty two. . . Snake belly

twenty three. . . Rib

twenty four. . . Tapering

25. . . Bulge

31. . . cover

32. . . Crack

33. . . Connecting hole

34. . . Ring

35. . . Middle bolt

A. . . air

H. . . Support table

P. . . Pipe fittings

S. . . Water supply

W. . . liquid

Fig. 1 is a perspective view showing the shape of a bottle of an embodiment.

Figure 2A is a top plan view of the bottle of Figure 1.

Figure 2B is a side elevational view of the bottle of Figure 1.

Fig. 3A is a cross-sectional view taken along line A-A of Fig. 2A.

Figure 3B is a bottom plan view of the bottle of Figure 1.

Fig. 4A is a view showing a bottle installed in an initial stage of a water supply.

Figure 4B is a diagram showing the bottle at the stage of starting the consumption of liquid.

Figure 5A is a diagram showing a bottle that consumes about half of the liquid phase.

Figure 5B is a diagram showing a bottle at a stage that consumes substantially the full amount.

10. . . bottle

11. . . bottom

12. . . Bottle body

13. . . Bottleneck

14. . . Shoulder

twenty one. . . Snake belly

twenty two. . . Snake belly

twenty three. . . Rib

twenty four. . . Tapering

31. . . cover

32. . . Crack

33. . . Connecting hole

Claims (3)

A water supply bottle comprising a bottom portion (11), a body portion (12) continuous from a periphery of the bottom portion (11), and a shoulder portion inclined upward from an upper edge of the bottle body portion (12) toward a central portion (14) And a cylindrical neck portion (13) disposed at the central portion; the whole portion is formed of PET resin; the body portion (12) has a snake belly (21) that is expandable and contractable in the up and down direction, and is in the snake belly ( 21) Between the bottom portion (11), a tapered portion (24) having a narrower distance to the bottom portion (11); the tapered portion (24) is pulled into the interior of the bottle as the liquid inside is discharged. The water supply bottle according to claim 1, wherein when the tapered portion (24) is formed in the body portion (12), the height of the tapered portion (24) is the snake belly (21) 60% to 80% of the height. A water supply bottle according to claim 1 or 2, wherein a plurality of ribs (23) are formed on a surface of the shoulder portion (14).