JPS5940276Y2 - container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a thin container made of synthetic resin and biaxially stretched, the bottom of which is bulged downward into a spherical shape.

Recently, containers made of thin synthetic resin that have been biaxially stretched have been known.

The container has excellent strength due to biaxial stretching, and can be made thinner, which saves on materials and makes it extremely lightweight.
When the bottom wall is formed almost horizontally to the body as in conventional containers or bottles, the biaxial stretching of the bottom wall becomes insufficient, making it impossible to provide sufficient strength to the bottom wall. .

In order to eliminate such defects, the bottom of the container is bulged downward in a spherical shape, and a hakama-like cylindrical leg is fitted to the bottom end of the container, allowing the container to stand upright. As a result, the appearance of the container is spoiled due to the cylindrical footrest being fitted together, and the biaxial stretching of the bottom wall is not sufficient, and the biaxial stretching of the shoulder of the container is also insufficient. However, the strength of the bottom wall buttons and shoulders could not be said to be sufficient.

The present invention eliminates the above-mentioned drawbacks, and also makes it possible to stack a plurality of containers by using the upper cylindrical member fitted to the upper part of the container and the cylindrical leg part as a means for eliminating the problem.
Furthermore, by doing so, it is possible to prevent the upper cylindrical member from becoming unstable in fitting into the container body.

Referring to the drawings below, reference numeral 1 indicates a thin container body made of synthetic resin and biaxially stretched.

The bottom part 2 of the container body is formed to bulge downward in a spherical shape, and a neck part 4 stands up from the upper end of a body part 3 which stands up from the bottom periphery via a shoulder part 3a.

A recess 5 is formed on the lower surface of the center portion of the bottom.

A cylindrical leg base 6 is fitted into the bottom of the container body.

The cape stand allows the container body to stand up on a stand, etc., and has a first peripheral wall 7 whose upper portion is fitted to the lower end of the body of the container body.

A bottom wall 8 supporting the lower surface of the bottom of the container body is provided on the inner surface of the first peripheral wall.
is attached like a raised eave, and the center part of the bottom wall is fitted as a protrusion 9 into the recess 5 of the container body.

An upper cylindrical member 10 is fitted into the upper end of the body of the container.

The member has a second peripheral wall 1 whose lower end is fitted into the upper end of the body.
1.

From the end of the second peripheral wall, turn inward under the peripheral wall to form the inner peripheral wall 1.
2 is hung vertically, the tip of the inner circumferential wall is further folded upward to form a fitting cylindrical portion 13, and the base of the container mouth neck is fitted into the cylindrical portion.

The lower end of the first peripheral wall of the aforementioned cape platform, the upper end of the second peripheral wall of the upper cylindrical member, and the connecting means 6a, 10a are provided.

These connecting means connect a plurality of containers of this kind by connecting with the upper end of the second peripheral wall of the upper cylindrical member or the lower end of the first peripheral wall of the footrest of another container of the same structure and size. As shown in Figure 2, they can be stacked.

In the illustrated example, the connecting means 6a is formed by forming a downward step on the outer periphery of the lower end of the first peripheral wall, and the second upper cylindrical member is attached to the step.
Although the upper end of the peripheral wall is provided to fit together, the fitting may be done by screwing the first peripheral wall of the one unit part and the second peripheral wall of the upper cylindrical member, or by fitting one of them. A concave groove and a fitting protrusion may be provided around the other side, respectively, and these may be elastically fitted.

This proposal is based on the above, and since the thin container body made of synthetic resin and biaxially stretched has its bottom bulging downward in a spherical shape, the bottom wall is almost parallel to the body. Compared to a case formed horizontally, the bottom part can be strengthened by increasing the biaxial stretching ratio, and since the cylindrical leg part 6 is fitted to the bottom part, the container body can be formed even though the bottom part is spherical. The bottom wall 8 supporting the lower surface of the bottom is attached to the inner surface of the first circumferential wall of the cylindrical leg base in the form of an eave, so that the bottom wall and the lower end surface of the first circumferential wall are A gap is formed between them, so that when the container is placed on a table or the like, a balancer is not applied to the bottom of the container main body, and thus the bottom of the container main body can be protected.

Furthermore, since the upper cylindrical member is fitted to the upper part of the container body,
The appearance of the container can be improved compared to the case where only the cylindrical leg part is fitted to the bottom of the container body, and the shoulder part of the container body, where biaxial stretching is insufficient like the bottom part, can be protected. Since the cylindrical leg base is fitted to the lower end and the upper cylindrical member is fitted to the upper part, connecting means are provided at the lower and upper ends of the first and second surrounding walls, respectively, so that multiple containers of the same type can be stacked. Since the upper fitting member supports the upper containers during stacking, the fitting to the upper part of the container body should be unstable.
Since the fitting cylinder part 13, which is protruded and attached to the inner peripheral edge thereof, is fitted to the outer surface of the mouth and neck of the container main body, the fitting can be ensured, and other containers stacked above can be reliably supported.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the container according to the invention, and FIG. 2 is a longitudinal sectional view of the container according to the invention showing two containers stacked together. 1... Container body, 6... One unit part, 10
...... Upper cylindrical member.

Claims (1)

[Scope of utility model registration request] The bottom part 2 is formed to bulge downward into a spherical shape, and the mouth and neck part 4 is made to stand up upward from the upper end of the body part 3 which stands up from the periphery of the bottom part via the shoulder part 3a, and is made of synthetic resin and is biaxially stretched. a thin container body 1 and a bottom wall 8 that supports the lower surface of the bottom.
is formed on the inner surface of the first circumferential wall 7 in the shape of a raised eave, and the upper part of the first circumferential wall is fitted into the lower end of the body of the container body, and the upper end of the body of the container body. To, second peripheral wall 1
1. At the same time as fitting the lower part, a fitting cylinder part 13 is attached to the inner peripheral edge of the inner peripheral wall 12 projected inward from the second peripheral wall, and the fitting cylinder part is fitted to the outer surface of the mouth and neck part. The lower end of the first circumferential wall, the upper end of the second circumferential wall, and the upper cylindrical member 10 are similar to those of another container formed to have the same structure and size as the container. Connecting means 6a that can be fitted to the upper end of the peripheral wall and the lower end of the first peripheral wall to stack a plurality of containers.
, 10a, respectively.