JPH11124174A - Disposable container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make content liquid difficult to drip out of a container even if a container body is slightly at the time of peeling off a lid seal by forming, like a ring, a return protrusion which works to return the content liquid to an internal face in the vicinity of an upper end of the container body. SOLUTION: A container body 1 comprises a cup-shaped container made of a synthetic resin and a lid seal heat-fused to an upper face of the container body 1 to provide a sealed container. The container body 1 is a container normally having capacity of approximately 5 to 120 cc and receiving content liquid 3 inside. A return protrusion 4 is formed like a ring on an internal face 1a in the vicinity of an upper end of the container body 1. The return protrusion 4 is of an appropriate shape and an appropriate size, wherein its lower face 4a functions to return the content liquid 3. Since the return protrusion 4 is entirely like a continuous ring, even if the content liquid 3 received in the container body 1 proceeds beyond the return protrusion 4 from any direction, the content liquid 3 can be always reliably pushed back.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable container, and more particularly, to a disposable container in which a solution inside the container is hardly spilled when a lid seal of the container is opened.

[0002]

2. Description of the Related Art Conventionally, as a container for storing drinking water, soft drinks, aseptic preparations for eyewash, etc., the upper part of a resin container is heat-sealed with aluminum or other material to form a 5-120 c.
2. Description of the Related Art Disposable containers prepared into closed containers having a capacity of about c are known.

[0003]

However, this disposable container is lightweight and small, so that it is difficult to hold the disposable container with a fingertip, and a heat-sealed lid seal is firmly attached to the container. When the seal is peeled off, an excessive force is applied in the direction of tilting the container, which sometimes shakes the hand and instantaneously tilts the container to spill the internal solution.

[0004] The reason for spilling the internal solution in the container is that there is no return projection inside the container to prevent the internal solution from spilling.

According to the present invention, by forming a return projection capable of performing an action of returning the internal solution inside the container,
It is intended to solve the above problem.

[0006]

A disposable container according to a first aspect of the present invention is a disposable container in which a lid seal is heat-sealed to an upper portion of a container main body, and the inner surface near an upper end of the container main body. It is characterized in that the return protrusion for returning the internal solution is formed in a ring shape.

A disposable container according to a second aspect of the present invention is a disposable container in which a lid seal is heat-sealed to an upper portion of a container body, wherein an inner solution near an upper end of the container body has a function of returning an internal solution. The vicinity of the upper end of the container main body is bent inward so that the return projection that forms a ring shape is formed.

Since the disposable container according to the present invention is provided with a return projection for returning the inner solution, the inner solution returns even if the container is slightly shaken when the lid seal is peeled off and opened. It is characterized in that it is difficult for the solution to spill over.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the disposable container according to the present invention in a state where a lid seal is removed, and FIG.
5 are vertical sectional views of the container body. 6 and 8 are perspective views of a disposable container according to another embodiment with a lid seal removed, and FIGS. 7 and 9 are longitudinal sectional views of respective container bodies.

As shown in FIG. 1, a container body 1 is formed as a cup-shaped container made of synthetic resin, and a lid seal 2 is heat-sealed on the upper surface of the container body 1 to form a closed container. The container body 1 is usually a container having a capacity of about 5 to 120 cc, and contains therein an inner solution 3 composed of a drinking water, a soft drink, a sterile preparation of eyewash, or the like.

Next, the inner surface 1 near the upper end of the container body 1
The return projection 4 is formed in a ring shape at a. The return projection 4 has an appropriate shape and an appropriate size as shown in FIGS. 2 to 5, and has a lower surface 4 a of the return projection 4.
Has a function of returning the internal solution 3. Even if the cross-sectional shape of the lower surface 4a of the return projection 4 is linear,
Alternatively, it may be curved.

Further, since the return projection 4 has a continuous ring shape as a whole, no matter what direction the inner solution 3 stored in the container body 1 has advanced beyond the return projection, The effect of always pushing back the internal solution can be exerted.

Next, the embodiment shown in FIGS. 6 and 8 will be described. The embodiment shown in FIGS. 6 and 8 is an example in which the return projection 4 is formed by bending the upper portion of the container body inward, as is apparent from the sectional views of FIGS. 7 and 9. The upper end of the opening of the container body 1 is bent inward to form a return projection 4.

In any case, the portion corresponding to the return protrusion 4 is characterized in that the body of the container body is tapered so that the upper end of the opening of the container body is substantially turned back. The part 4 is formed.

In this case, the cross-sectional shape of the lower surface of the bent projection 4 at the upper end of the opening in the container body 1 may be linear or curved as in the above-described example. .

According to the present invention, since the inner diameter of the upper portion of the container body is formed to be small, the inner solution is less likely to spill when the lid seal is opened.

[0017]

As described above, according to the disposable container of the present invention, even if the container main body is slightly tilted when the lid seal is peeled off, the inside of the disposable container is formed by the return projection near the upper portion of the container main body. Since the solution is pushed back toward the inside of the container, there is an excellent effect that the internal solution hardly spills out of the disposable container.

[Brief description of the drawings]

FIG. 1 is a perspective view of a disposable container according to the present invention with a lid seal removed.

FIG. 2 is a vertical sectional view of a container body.

FIG. 3 is a longitudinal sectional view of a container body of another embodiment.

FIG. 4 is a longitudinal sectional view of a container body according to another embodiment.

FIG. 5 is a longitudinal sectional view of a container body according to another embodiment.

FIG. 6 is a perspective view of a disposable container according to another embodiment of the present invention with a lid seal removed.

FIG. 7 is a longitudinal sectional view of the container main body in the preceding figure.

FIG. 8 is a perspective view of a disposable container according to another embodiment of the present invention with a lid seal removed.

FIG. 9 is a longitudinal sectional view of the container main body in the preceding figure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Container main body 1a ... Inner surface of container main body 2 ... Lid seal 3 ... Inner solution 4 ... Return protrusion 4a ... Lower surface of return protrusion

Claims (2)

[Claims] 1. A disposable container in which a lid seal is heat-sealed to an upper portion of a container body, wherein a return projection for returning an internal solution is formed in a ring shape on an inner surface near an upper end of the container body. Disposable container characterized. 2. A disposable container in which a lid seal is heat-sealed to an upper portion of a container body, wherein a return projection for returning an internal solution is formed in a ring shape on an inner surface near an upper end of the container body. A disposable container characterized in that the upper end of the container body is bent inward.