JPS588672Y2 - Saturated polyester resin bottle with fitted hakama-like legs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a large bottle made of saturated polyester resin for filling, for example, carbonated drinking water, which requires filling under high pressure.

Traditionally, glass bottles have been used as large bottles for this type of dispensing, but because they are large bottles, they can withstand the pressure inside the bottle as well as the weight of the liquid filled. In order to do this, it is necessary to use a fairly thick inner bottle, which results in an extremely large overall weight, increasing transportation costs and making it inconvenient to carry.

In the case of drinking water as mentioned above, the container cost and transportation cost account for a very small proportion of the price compared to other products, and the large bottle mentioned above has the purpose of reducing the container cost, but it is not convenient to carry. It has limitations in its sexuality.

In order to eliminate this drawback, we created a large biaxially stretched synthetic resin bottle with smooth shoulders, a cylindrical body, and a spherical bottom wall that protrudes downward. There have been attempts to use the bottle in this way, and it has been confirmed that it is thin and lightweight, and can withstand the pressure inside the bottle.

However, if the bottom wall protrudes downward in a spherical shape, the bottle cannot stand upright, so it is necessary to attach legs, but iron legs are also inexpensive and can be supported reliably for the reasons mentioned above. Moreover, it is required to have enough strength to withstand the weight of the liquid filling field.

This proposal is intended to meet such demands, and the drawings will be explained below.

In Fig. 1, reference numeral 1 denotes a weir body, which has a threaded portion 3 for screwing a cap on its mouth and neck portion 2, and extends downward and outwardly in a spherical shape via a shoulder portion 4 formed on a shoulder. A cylindrical body part 6 having a protruding bottom wall 5 at the lower end is hung vertically,
At least the parts other than the mouth and neck, that is, the shoulder, body, and bottom wall are made of a large saturated polyester resin that is biaxially stretched.

It is preferable that the lower part of the body part 6 has a smaller diameter part 6a than the upper part to facilitate fitting of the rod-like leg part described below.

A rod-shaped leg portion 7 is fitted into the lower part of the body.

The leg part has a stepped peripheral wall 8 whose upper part can be tightly fitted to the lower body part of the weir body, and has a folded part 9 folded back from the lower end thereof, and continues to the upper end of the folded part 9. It has a bottom 10 for receiving the bottom wall 5 of the weir body, and has the ferric acid 10 located above the turning point, and is a thin integrally molded member vacuum-formed from a sheet of a suitable synthetic resin.

Incidentally, if a hollow or hollow annular protrusion is provided on the inner periphery of the upper edge of the peripheral wall 8, and a groove into which the annular protrusion fits is provided in the weir body 1, and they are fitted together, a scoop-like leg is formed. Part T does not come off easily, and the fissure is more durable against damage.

Incidentally, the peripheral wall 8 has a stepped shape and has a rib effect against external forces in the lateral direction and a cushion effect against forces from above.

In the one shown in FIG. 1, the folded portion 9 is simply raised up, but instead of this, it may be shaped like a step as shown in FIG.

By making the folded portion 9 step-like as shown in FIG. 2, a cushioning effect can be obtained even on the iron portion.

According to the present invention, the weir main body 1 is made of two-wheeled stretched saturated polyester resin, so it has excellent mechanical properties even if it is thin, and the shoulder portion 4 is shaped like a scrap, and the body portion 6 is shaped like a cylinder. Since the bottom wall 5 is formed into a spherical shape that protrudes downward, it can withstand the pressure inside the bottle filled with high pressure, and even though the bottom wall 5 has a spherical shape that protrudes downward, a scoop-shaped leg portion can be fitted into the bottom wall 5. The Takara Bottle can be made to stand upright, and its scoop-shaped leg 7 has a step-like peripheral wall 8, so it has a rib effect against external forces in the lateral direction, and has sufficient strength to support the weir body by folding. In addition, the stepped shape of the peripheral wall 8 has a cushioning effect in the direction of gravity, making it resistant to shock and extremely stable and strong.

Further, since the ladle-shaped leg portion 7 is a thin integrally molded member, less molding material is required, and the structure thereof is simple, so it can be manufactured at a low cost.

Moreover, the bottle as a whole is extremely lightweight, and transportation costs are low, making it convenient for use in storing inexpensive items such as carbonated drinking water, which has a high internal pressure.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing one embodiment of the present invention, and FIG. 2 is a cutaway side view showing the main part of another example. 1... Weir body, 2... Mouth and neck, 4...
...Shoulder, 5...Bottom wall, 6...Torso, 7...Ladle-shaped leg, 8...Peripheral wall, 9
...Folded part, 10...Bottom.

Claims (1)

[Scope of utility model registration request] It has a mouth and neck part 2, a flattened shoulder part 4, a cylindrical body part 6, and a bottom wall 5 projecting downward in a spherical shape, and at least the parts other than the mouth and neck part 2 are saturated and formed by biaxial stretching. It consists of a large weir body 1 made of polyester resin and a rod-shaped leg part 7 made of synthetic resin that is fitted into the lower part of the weir body, and the rod-shaped leg part is tightly attached to the lower part of the body part 6 of the weir body. A stepped peripheral wall to be fitted is provided, a folded part 9 is provided which is folded back from the lower end of the peripheral wall, and a bottom 10 is provided which continues to the upper end of the folded part 9 and receives the bottom wall 5 of the weir body, and the ferric acid 10 is placed at the folded point. A bottle made of saturated polyester resin fitted with a rod-like leg, which is located above the body and is made of a thin integrally molded member.