JPH09207489A - Refill lead supply container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lead supply container which prevents a lead from spilling off the container and can secure an air passage when a cap is swallowed by mistake. SOLUTION: This lead supply container is formed of at least, a thermoplastic polymer and is composed of a case main body and a cap 2 as separable parts. In addition, a hole 3 consisting of a sinuous void is provided on the top of the cap 2 so that a lead does nor spill off the container in case the lead is stored in the container. Consequently, if an infant or a child swallows the cap unawares, an air circulation is ensured as the cap 2 with the sinuous void for preventing the lead from spilling off the container even when the lead is stored in the container, is provided on the top of the cap 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead core container for accommodating a core used for a sharp pencil, a plotter or the like.

[0002]

BACKGROUND OF THE INVENTION Thermoplastic polymers are not limited to refill containers
It is commonly used as a forming material for various containers.
The main thermoplastic polymers are petroleum-based polyester resins,
There are many types such as acrylic resin, methacrylic acid ester resin, vinyl chloride resin, vinyl acetate resin, polystyrene resin, acrylonitrile-styrene copolymer, and acrylonitrile-butadiene-styrene copolymer. This is because the performance of the thermoplastic polymer is excellent in many moldability by injection molding or the like, and it is easy to make it transparent or colored in order to improve the appearance of the container. Also, it is because it is easy to perform printing processing such as gravure transfer printing, metal vapor deposition printing, hot stamp printing, offset printing, pad printing, and silk printing on the container surface.

The shape of a commonly used refill container is
The container is a flat elongated container having a lead-out port in a part of the container or a round or rectangular cylindrical container having an opening at one end, and is composed of a case body and a cap. The case body and the cap cannot be separated as a unit, and the core that is stored can be taken out by sliding or rotating the cap. Also, the container and the cap can be separated to separate the cap from the case. The main refill container is the one that removes the stored core by removing it from the main body.

[0004]

However, in the case of a refill core container in which the case body and the cap can be separated, such as the latter, the length on the cap side is shorter than the length of the core to be stored. At present, it is shorter than the length of the case or the length of the case body. Therefore, after the purchase by the user, infants and children may show an interest in color and printing while the adult's eyes are open, and after taking it by hand, it may be swallowed by the mouth and accidentally swallowed. May occur.

Therefore, it is conceivable to provide the cap with a hole having a size that ensures a necessary air flow when the cap is accidentally ingested. However, when inserting the cap and the case body, it is necessary to have a concave-convex rib necessary for fitting with the container on the side surface inside the cap, or a screwing structure such as a screw cap type. It is required to add a mechanism for some fitting to the cap such as providing a spiral groove on the side surface inside the cap, and for that purpose, the upper part of the cap that is a position that is not affected by the insertion of the case body and the cap It is necessary to make a hole in the core, but if the hole is simply opened in the upper part of the cap, the core to be stored will spill out of the core container, so it will no longer function as a core container. Will end up.

[0006]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a refill container formed of at least a thermoplastic polymer and composed of parts that can be separated into a case body and a cap, the core is The gist of a refill container is characterized in that a hole formed of a curved void is provided in an upper portion of the cap so as not to spill out of the container.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example will be described with reference to the accompanying drawings. FIG.
In the case main body 1, each side of the inner wall of the core storage portion is 5 m.
m, 5mm, has a core storage chamber that is a 65mm rectangular parallelepiped,
A case body having a thickness of 2 mm and having an opening at one end in the longitudinal direction is molded using polystyrene (for example, Denka Styrol MT2 manufactured by Denki Kagaku Kogyo Co., Ltd.). The cap 2 is injection-molded from polyethylene (for example, Suntec F2135 manufactured by Asahi Kasei Co., Ltd.) so as to be a rectangular parallelepiped having 10 mm, 10 mm, and 13 mm sides so that it can be attached to and detached from the case body 1. is there. The cap 2 has an inner shape of 1 mm in diameter and 3 in width for allowing air to flow.
A wall 3 having a width of 1.5 mm and a length of 3 mm is provided so as to have a hole 3 having a depth of 5 mm and a depth of 5 mm and having a void curved toward the outside of the cap 2 as shown in FIG. On the contrary, as shown in FIG. 3, a wall portion 4 in which the hole 3 is curved so as to be directed toward the inside of the cap 2 may be provided. As shown in FIG. 1, the replacement core case body 1 and the cap 2 are in the shape of a rectangular tube as a whole. The shape may be rounded. Further, it may be a columnar shape such as an elliptic cylinder or a tea cylinder.

FIG. 4 shows a cap 2 which is inserted into the case body 1 used in FIG. 1 so that a hole 3 provided in the cap 2 can be provided more easily. This is an example in which the hole 3 is provided through the step portion 6 provided in the upper thick portion 5 of the cap 2 without providing the wall portion 4 when forming the curved void.

In these refill containers, for example, a length of 60 m
m, several cores for a sharp pencil having a nominal diameter of 0.5 mm are housed and the cap 2 is spilled from the hole 3 in the cap 2 even if the cap 2 is placed on the lower side, that is, the refill container is turned upside down. Can be prevented.

Although the above embodiments have been described on the basis of prototypes, the present invention is not limited thereto and various modes can be adopted. For example, the size of the hole 3 formed in the cap 2 depends on the size and shape of the cap 2 used,
It suffices to make a hole 3 in the cap 2 that is large enough to ensure the necessary air flow when swallowed, and as a curved space, an "L" -shaped space is shown in the figure, but other Shape,
It may be an arc type or the like.

Further, the number of holes 3 is shown as an example of two places in the figure, but if the number of holes is large enough to allow air flow, even if only one place is provided, two or more places are provided. However, considering the strength of the upper portion of the cap 2, it is better to provide only the holes 3 at a few places.

[0012]

EFFECTS OF THE INVENTION With the refill core container of the present invention, in a refill container composed of parts that can be disassembled into a case body and a cap, the wick does not spill out of the container even when it is stored inside the container. Since a hole having a curved space is formed on the upper portion of the cap, air circulation can be secured even when an infant or child swallows the cap and swallows it.

The above-mentioned petroleum-based thermoplastic polymer is used.
In addition to the above, in recent years, as environmental problems have become a hot topic, thermoplastic polymers having a starchy component that decomposes in soil burial and in the ocean after discarding containers, such as "matabi"-"(Mater-Bi: manufactured by Novamont Co.) and the like, biodegradable thermoplastic polymers are also noticed, and when a refill core container is molded with this thermoplastic polymer, the cores stored therein. When you dispose of a refill container that is no longer needed after use, water and breeding bacteria that facilitate decomposition easily enter the container through the holes and are decomposed from the outside and inside of the cap. Therefore, it has an effect of decomposing faster than a cap having no holes.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a refill container for explaining an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the cap shown in FIG.

FIG. 3 is a vertical cross-sectional view of another embodiment corresponding to FIG.

FIG. 4 is an exploded perspective view of another embodiment of the refill container according to the present invention.

5 is a vertical cross-sectional view of the cap of FIG.

[Explanation of symbols]

 1 Case Main Body 2 Cap 3 Hole 4 Wall 5 Upper Wall Thickness 6 Step

Claims (1)

[Claims] 1. A wick container formed of at least a thermoplastic polymer and composed of parts that can be separated into a case body and a cap so that the wick does not spill out of the container when the wick is housed. A refill container, characterized in that a hole formed of a curved void is provided in the upper part of the cap.