JPH0611288B2 - Infusion plastic container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a container for containing an infusion solution for intravenous injection such as blood and plasma substitute solution, and is formed by a blow molding method and hung on a seat along a parting line. TECHNICAL FIELD The present invention relates to an infusion plastic container in which tools are integrally connected to each other, and particularly relates to improvement of a hanging part of the container.

[0002]

2. Description of the Related Art As a conventional suspender for a plastic container for infusion, there is one disclosed in Japanese Utility Model Laid-Open No. 57-45944. 5 The conventional example ones, it becomes as shown in FIG. 6, the vertical direction and the seat a which is flattened to self one end of, is provided with sling b for hanging, but also other A mouth portion c which can be sealed is provided at the end. A recess d is provided in the center of the seat a, and the suspending tool b is erected upright in the recess d, and the suspending hole for the bent suspending tool b is provided in the recess d. When the container is self-supporting, the suspending tool b is fitted and retained in the recess d by the projecting retaining projection f which is fitted to the e, and the suspending tool b interferes with the self-standing. It doesn't happen.

[0003]

The hanging tool b is erected on the parting line of the container to be blow-molded, and the holding projection f for holding the hanging tool b in a bent state is Since it is engaged with the hanging hole e of the hanging tool b, it is erected at a position separated by a distance from the parting line to the position of the hole e of the hanging tool b. Therefore, in the case of the blow-molded container, the holding convex portion f becomes extremely thin due to the formation of the undercut portion on the blow mold, and the strength of the container is lowered. The retaining projections f may be deformed during engagement with the suspending tool b, and the suspending tool b may come off. As a result, the suspending tool may protrude from the seat portion and the container may not be self-supporting. There is.

Therefore, as a result of researches conducted by the inventor of the present invention to solve the above-mentioned problems, a suspending tool b, which is vertically formed on the parting line of the container, is placed in a recess d provided in the seat a in advance. If the bending tool is formed by bending so that it can be stored, the hanging tool b can be stored by itself without using the convex portion engaging with the hanging tool b when not in use. It came down to being able to solve each problem of. However, in a plastic container molded by a blow molding method, when a hanging member, which is a projecting piece standing on the parting line of this container, is bent and formed in a direction perpendicular to the parting line at the time of molding, it is divided into Due to the structure of the mold, it was impossible to perform it simultaneously with molding.

[0005]

SUMMARY OF THE INVENTION The present invention has been conceived in view of the above, and in a plastic container for infusion, which is molded by a blow molding method, a holding projection is formed in a seat portion. In the natural state, the suspending tool is stored and maintained in the recess, and an extremely thin portion due to the retaining projection is prevented from being generated in the seat, so that the strength as a blow molded product can be sufficiently retained and the suspending tool is stabilized. In this state, the container can be stored and held in the recessed portion 3 and the container can be self-supported in a stable state without the hanger being obstructed, and it can be folded upright once when used.
Even after lifting the sling 5, even after removing it from the suspension arm,
Due to the elastic restoring force of this in the folding direction,
After use, it can be returned to its original shape after use.
Also, when suspending the plastic container for infusion,
The purpose of the present invention is to provide a plastic container for infusion in which the fitting 5 does not get in the way .
The structure is such that the hinge part of the above-mentioned hanging tool is softened by heating and bent, and then cooled and hardened, and this hanging tool is stored and maintained in the recessed portion of the seat portion in a natural state and is elastically deformable in an upright state.
Noh has been folded.

[0006]

[Operation] In the natural state, the hanging device is kept stored in the recess. At the time of use, it is pulled up from the above state and the hole of the hanging tool is hooked on the hanging arm.

[0007]

EXAMPLES Examples of the present invention will be described with reference to FIGS. 1 to 4. FIG. 4 shows a plastic container for infusion (hereinafter simply referred to as a container) molded by a blow molding method. In the figure, 1 is a seat portion provided at one end of a container 2 and 3 is a recess portion provided in the seat portion 1. Reference numeral 4 is a parting line of the container 2, and 5 is a suspender which is erected in the recess 3 along the parting line 4. This hanging tool 5 is provided with a hole 6 for hanging, and a thin hinge portion 7 is provided at the base.
Is provided. In the state after the blow molding of the container 2, the suspender 5 is upright with respect to the recess 3 as shown in FIG. As shown in FIG. 3, a nozzle 9 is used for the hinge portion 7 of the hanging device 5 of the blow-molded container 2 for about 300 times.
The heated air of ℃ is blown to heat and soften one side of the hinge portion 7. Then, as the heating and softening progress, the suspending tool 5 is bent toward the heating side around the hinge portion 7. In this state, the heating is stopped, the suspending tool 5 is folded and housed in the concave portion 3, and the heating portion is cooled and hardened.

By doing so, the suspending tool 5 is deformed and held in the above-mentioned bent shape, and is in a posture of being accommodated in the recess 3 in a free state as shown in FIG. Therefore, when the container not in use is stored in a box with its seat facing down, or when it is placed on a desk, so-called self-supporting, the hanging device 5
Does not get in the way. Also, at this time, the hanger 5 can be elastically deformed in the upright posture direction by the hinge portion 7 of the hanger 5.
ing. When the container 2 is in use, that is, when it is in a suspended state , the fingers are pulled up by the suspending tool 5 in the above state to easily elastically deform the thinned hinge portion to suspend the hole 6 of the suspending tool 5. Hang on your arm. At this time, the hanging tool 5 is in an upright state with respect to the seat portion 1 due to the weight of the container 2. Lift the hanger 5 of the container 2 up
When removed from the suspending arm, this suspender 5 restores its elasticity.
The force returns to the original stored posture.

[0009]

EFFECTS OF THE INVENTION According to the present invention, even in the case of a plastic container for infusion which is molded by the blow molding method, the suspending tool is naturally placed in the recess 3 without forming the retaining projection on the seat 1. Since 5 is stored and maintained, the seat 3 is prevented from having an extremely thin portion due to the holding projection, and the strength of the blow-molded product can be sufficiently retained. It can be stored and held inside, and when not in use, the container can stand on its own without the hanger 5 interfering. Well
Also, the hanging device 5 that is bent upright once at the time of use,
After using it after removing it from the hanging arm,
The elastic restoring force restores the shape stored in the recess 3.
The plastic for infusion even after use
This hanger 5 is a hindrance when making the container self-supporting
Never.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a main part of a plastic container for infusion according to the present invention.

FIG. 2 is a cross-sectional view showing a main part of the present invention.

FIG. 3 is a cross-sectional view showing a heating state of a hinge portion of the hanging tool.

FIG. 4 is an overall perspective view showing a blow-molded state.

FIG. 5 is a front view showing a main part of a conventional example in a cutaway manner.

FIG. 6 is an enlarged sectional view of a main part of a conventional example.

[Explanation of symbols]

1 seat part, 3 concave part, 4 parting line, 5 hanging tool, 7 hinge part.

Claims (1)

[Claims] 1. Formed by blow molding in which a hanging member (5) is integrally provided in a recessed portion (3) provided in a seat portion (1) along a parting line (4) and through a thin hinge portion (7). In the plastic container for infusion, the above-mentioned hanging tool 5
The hinge part 7 is heat-softened and bent, and then cooled and hardened, so that the sling 5 is stored and maintained in the recess 3 in a natural state .
In addition, the plastic container for infusion is characterized by being bent so as to be elastically deformable in an upright state .