JPH0638746U - Synthetic resin container - Google Patents

Abstract

(57) [Summary] [Purpose] An uneven pattern is formed inside a container made of synthetic resin. [Structure] A synthetic resin container in which a portion of an inner container 2 and a portion of an outer container 3 are integrally formed by double molding, and an uneven surface is formed on an outer surface of a portion of the inner container 2 or an inner surface of a portion of the outer container 3. The pattern 1 is formed, and the pattern 1 is protected by the sheet material 4 interposed during the double molding.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a synthetic resin container having an uneven pattern inside.

[0002]

[Prior art]

 Synthetic resin containers are generally simple in design, and when used in tableware, for example, the practical aspects are often emphasized. For example, as found in lunch containers. It is easy to add an uneven pattern to give a design change, but there is a problem that it is difficult to remove it when it becomes dirty.

Therefore, the inventor of the present invention conceived and made a prototype of a container in which a concavo-convex pattern was formed on the surface of the container, and the pattern was covered to confine it inside and the surface was smoothed. There was a problem that the unevenness was melted and almost disappeared during the molding of the resin covering the scarlet pattern. The above problem can be relatively easily solved by changing the type of resin on the side on which the pattern is formed and the side on which the pattern is covered, but this causes another problem in terms of strength, transparency and the like.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above points, and its problem is to give a design change to a resin container by an uneven pattern to increase the added value and to improve the quality of the container by forming a pattern. But don't let it fall.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention double-molds an outer container 3 on the outside of a container-shaped inner container 2 having an uneven pattern 1 formed on the outer surface, or a container having the pattern 1 formed on the inner surface. A synthetic resin container integrally formed by double-molding the inner container 2 inside the outer container 3 having a size capable of covering the pattern 1 and protecting the pattern 1 during double molding. The sheet material 4 for this purpose is provided at a position to cover the pattern 1 between the inner container 2 and the outer container 3.

[0006]

【Example】

 A description will be given below with reference to the drawings. FIG. 1 shows a synthetic resin container A according to the present invention, which is embodied in a salad ball, which is entirely made of colored and transparent resin. The synthetic resin container A is formed by an inner container 2 having a bowl shape on the inner side, and an outer container 3 is double-molded on the outer side thereof, and an uneven pattern 1 is formed on a bottom portion 6 between the inner and outer containers 2, 3. Is provided as if contained, and is visible through the interior and exterior.

In the case of the embodiment, the inner container 2 is made of a colored and transparent acrylic resin, and the pattern 1 is provided on the flat outer surface, that is, the lower surface of the bottom portion 2 so as to be engraved in the thickness (FIG. 2). ). This pattern 1 can be formed at the same time when the inner container 2 is formed by a mold. When the acrylic resin is used as the material, the depth of the pattern 1 is limited to one-third to one-half the thickness of the bottom portion 6. Also, with respect to the average wall thickness, 1/2 is the best in terms of molding efficiency, and the effect of the pattern does not improve even if a depth greater than that is given.

The thickness of the bottom portion 6 of the illustrated inner container 2 is set to be thicker than the thickness of the peripheral portion 7, and the total thickness of the inner container 2 and the outer container 3 is a single layer. It is set to be almost the same as a container made of. An outer projecting edge 8 is provided on the edge of the peripheral portion 7 of the inner container 2 over the entire circumference, and the outside of the projecting edge 8 is set so as to match the outer surface of the outer container 3 double-molded in the inner container 2. Is.

The sheet material 4 has a size capable of covering the entire surface of the pattern 1 in order to protect the pattern 1, and a material thickness capable of preventing the element 1 and the pattern 1 from being melted by heat of molding. When the inner container 2 and the outer container 3 are made of acrylic resin, colorless or colored transparent polycarbonate or acrylic resin can be used as the material of the sheet material 4. The material thickness of the material 4 is preferably 0.5 mm to 1.0 mm. If the sheet material 4 is made of a material that is shrunk to some extent by the heat of the resin when molding the outer container, it is better to make the size one size larger than the pattern 1.

The sheet material 4 is fixed to the inner container 2 at a position where it covers the pattern 1. Therefore, the sprue formed when the inner container 2 is molded is set at the bottom, and a part of the sprue is fitted with the sheet material 4, or another fitting means, or the sheet material 4 is adhered. Means can be taken for fixation.

The outer container 3 is formed by stacking the sheet material 4 on the pattern 1 and double-molding the outer material on the outside. If this is decomposed and shown, it becomes like FIG. The outer container 3 is also made of a colored and transparent acrylic resin and is integrated with the inner container 2 by double molding, so that the boundary is not visible from the outside. That is, an appearance that is completely the same as that of a molded product made of a single layer is obtained, the pattern 1 on the bottom portion 6 is not changed at all, and the existence of the sheet material 4 is almost unknown. At the time of double-molding, the outer container 3 has a protrusion 5 for floating and stably mounting the container A from the mounting surface on the lower surface of the bottom 6 so as to surround the pattern 1, and also the peripheral portion. A step 9 for preventing overfitting is formed on the outer surface of the mold. The protrusion 5 does not have to be annular.

The illustrated salad ball container A has four petal-shaped bulges 11 formed on the rim thereof, and a shallow recess 12 protruding slightly inwardly between the bulges 11. When the bulges 11 are combined, they can be stacked stably. Then, the step 9 on the outer surface of the bulge 11 is locked to the projecting edge 8 of the container A. In the above example, the pattern 1 is provided on the outer surface of the inner container 2 and the outer container 3 is double-molded on the outer side. However, by reversing this, the pattern 1 is provided on the inner surface of the outer container 3 and the content on the inner side is Double molding of the container 2 can be carried out very easily. In order to make a pattern stand out, it is preferable that the synthetic resin container A is colored and transparent as a whole. However, even when the outer container 3 is opaque, the pattern 1 can be seen through from the inside as long as the inner container 2 is transparent.

For convenience of description, the expressions “inner container” and “outer container” are used. However, when the outer container is double-molded outside the inner container 2, there is no independent outer container, and conversely. When the inner container is double-molded inside the outer container 3, there is no independent inner container. In either case, since one container A is formed by closely adhering to each other, the inner container and the outer container mean a portion forming the inner surface of the container and a portion forming the outer surface of the container, respectively. Such a synthetic resin container according to the present invention can be applied to various containers such as bowls, bowls and other various tableware and cups, in addition to the exemplified ones, to enhance its texture and aesthetics.

[0014]

[Effect of device]

 Since the present invention is configured and operates as described above, since the uneven pattern 1 is formed inside the synthetic resin container and the surface of the container maintains smoothness, the container has a design change. At the same time, the effect of being able to remarkably increase the added value of the synthetic resin container without causing any problems such as stains or loss of transparency due to the pattern thereof can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a synthetic resin container according to the present invention.

FIG. 2 is a vertical cross-sectional view of the same container.

FIG. 3 is an explanatory perspective view showing the container in a disassembled state.

Claims (5)

[Scope of utility model registration request] 1. An outer container 3 is double-molded on the outside of a container-shaped inner container 2 having an uneven pattern 1 formed on the outer surface, or a container-shaped outer container 3 having the pattern 1 formed on the inner surface. A synthetic resin container integrally formed by double-molding the inner container 2 inside the sheet, having a size capable of covering the pattern 1 and protecting the pattern 1 during double-molding. A synthetic resin container in which a material 4 is interposed at a position covering the pattern 1 between the inner container 2 and the outer container 3. 2. The pattern 1 is the outer surface of the inner container 2 or the outer container 3.
The synthetic resin according to claim 1, wherein the synthetic resin has an engraved pattern engraved on the inner surface thereof, and the maximum depth thereof is in the range of one third to one half of the wall thickness of the pattern engraved portion. container. 3. The inner container 2 and the outer container 4 are made of acrylic resin, and the pattern 1 is formed on either of the flat bottoms thereof.
The synthetic resin container according to claim 1, wherein the sheet material 4 is formed of polycarbonate or acrylic resin in a flat plate shape. 4. The synthetic resin container according to claim 1, wherein at least the inner container 2, the outer container 4 and the sheet material 4 are made of a transparent resin. 5. The pattern 1 is molded on the flat bottom outer surface of a container-shaped inner container 2, the inner container 2 being made of a colored and transparent acrylic resin, and polycarbonate or acrylic resin covering the entire pattern 1 The sheet material 4 consisting of
An outer container 3 made of acrylic resin is double-molded on the outer side of the inner container 2, and a protrusion for floating and stably mounting the container on the outer surface of the bottom of the outer container 3 surrounding the pattern. A synthetic resin container in which 5 is integrally formed.