JPS6119065Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a bottle with a base cup made of synthetic resin.

``Prior art'' Because the bottle walls are thinner, materials can be saved, and the material can be made to have excellent mechanical strength, biaxially stretched synthetic bottles are used for various bottles, especially bottles for carbonated drinks such as beer. Resin bottles are used.

Biaxially stretched bottles are formed by heating and softening a small bottle-shaped cold parison made in advance by injection molding, placing it in a mold, and then expanding the cold parison by blow molding. Therefore, the bottom of the bottle inevitably bulges out into a hemispherical shape, making the bottle unstable to sit on.

Therefore, only the center part of the spherical bottom is recessed upward to form a donut-shaped bottom, or a base cup with a footrest is fitted to the spherical bottom to make it stand up stably. There is.

``Problems to be Solved by the Invention'' The conventional bottles cannot be stacked, so they have to be arranged flat during storage or transportation, which is inconvenient and requires a large area.

The object of the present invention is to provide a bottle with a base cup which improves the shape of the base cup attached to the bottom of the bottle and which makes it possible to stabilize the standing state and stack up the bottles.

``Means for Solving the Problems'' The bottle with a base cup of the present invention has a bottom wall 6 that bulges downward in a substantially spherical shape, and has a concave portion 7 formed upwardly in the center thereof, and also has an outer diameter of the bottom. A synthetic resin bottle 1 has a diameter slightly smaller than the outer diameter of the body 2 and has a downward step A formed at the lower end of the body 2, and is cylindrical with a bottom, with the center part of the bottom wall inserted into the recess 7 of the bottom of the bottle. The cap 5a of the other bottle 1a of the same shape and size is made to stand upwardly in a substantially straight cylindrical shape to form an insertion part for the cap 5a, and the outer half of the donut-shaped bottom wall 9 is made into a flat pedestal, and the inner circumferential side The half part is formed into an inclined mounting part 12 that rests on the shoulder part 3a of the other bottle 1a, and the peripheral wall 10
It consists of a base cup 8 for raising the bottle, whose upper end peripheral edge is supported by the downward step part A and which is fitted into the small diameter bottom part of the bottle 1.

"Function" In the above, a straight cylindrical upright part 11 is provided at the center of the bottom wall of the base cup 8, but there is an upward recess 7 in the center of the bottom wall 6 of the bottle 1 into which the upright part 11 can fit. Therefore, the base cup 8 can be fitted into the spherical small diameter bottom of the bottle 1, and the bottle 1 can be stably erected. In this case, since the outer half of the bottom 9 of the base cup 8 is a flat pedestal, the bottle 1 stands upright on its surface, and its standing stability is high.

Then, place the base cup 8 on the resting part 12 of the other bottle 1.
If the bottle 1a is placed on the shoulder 3a of the bottle 1a, the cap portion 5a of the bottle 1a will fit into the straight cylindrical upright portion 11, so the bottle 1
It is possible to accumulate

Furthermore, since the base cup 8 is supported by the downward step A at the lower end of the body 2, even if the bottle 1 is large, it can be stably supported.

"Example" In the figure, 1 is a synthetic resin bottle formed by biaxially stretching a cold parison made of, for example, a saturated polyester resin. 2 is the body of the bottle 1, 3 is the shoulder, 4
5 is the mouth and neck raised from the inner peripheral edge of the shoulder, 5 is the cap, and 6 is the internal upward concave portion 7 in the center.
This is the bottom wall that formed the . The bottom of this bottle 1 is the body 2
The outer diameter is made into a stepped shape with a slightly smaller diameter, and the base cup 8 is fitted into the small diameter bottom part using this downward step part A.

The base cup 8 has a bowl-like external shape with a gently sloped peripheral wall 10 rising from the periphery of the bottom wall 9, but its cross-sectional shape corresponds to the bottom shape of the bottle 1. be. That is, the central part of the bottom is made to stand upwardly inside in a substantially straight cylinder shape, and the outer half of the donut-shaped bottom wall 9 is made into a flat surface pedestal, and the inner half has the same curvature as the shoulder part 3. It is shaped like a mounting part 12 on which the shoulder part 3a of another bottle 1a is placed as a curved surface corresponding to the above-mentioned straight cylindrical upright part 11.
This is the part where the cap 5a of the other bottle 1a is inserted. Needless to say, the other bottles 1a are of the same shape and size. Incidentally, the straight cylindrical upright portion 11
There is a gap between the upper base 13 and the upper base 7a of the recess 7 of the bottle 1. Further, the base cup 8 is manufactured by forming a synthetic resin material.

"Effect of the invention" As described above, the present invention has a straight cylindrical upright part 11 for inserting the lower bottle cap 5a into the bottom part 9 of the base cup 8, and a mounting part 1 for placing it on the shoulder.
2, it becomes possible to stack a plurality of bottles 1, and the area required for storing and transporting the bottles 1 is reduced, making it convenient. Also, since the outer half of the base cup 9 is made into a flat pedestal,
The stability of the upright position of the bottle 1 is high, and since the base cup 8 is supported and fitted to the downward step A at the lower end of the body 2, even a large bottle can be supported without any concerns.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, and are cross-sectional views of main parts showing a stacked state. DESCRIPTION OF SYMBOLS 1... Bottle, 3... Bottle shape part, 8... Base cup, 11... Straight cylindrical standing part, 12... Placement part.

Claims (1)

[Scope of utility model registration request] A recess 7 is formed in the center of the bottom wall 6 which bulges downward in a substantially spherical shape, and the outer diameter of the bottom is made slightly smaller than the outer diameter of the body 2, and a downward step is formed at the lower end of the body 2. A, a synthetic resin bottle 1 having the same shape and the same size as the synthetic resin bottle 1, which is cylindrical with a bottom, and has a bottom wall centrally inserted into the recess 7 at the bottom of the bottle, and stands upwardly inside the bottle 11 in a substantially straight cylindrical shape. In addition to forming the cap 5a insertion part of the other bottle 1a, the outer peripheral half of the donut-shaped bottom wall 9 is used as a flat base, and the inner peripheral half is used as the other bottle 1a.
formed on the inclined mounting part 12 that rests on the shoulder part 3a of the
A bottle with a base cup comprising a base cup 8 for raising the bottle, which is fitted into the small diameter bottom of the bottle 1 with the upper edge of the peripheral wall 10 supported by the downward step part A.