JP2954884B2 - Double container made of synthetic resin - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin secondary container having an outer container for improving the external appearance of the entire container, which is mainly fitted to an inner container which is a container main body for storing a content liquid. It concerns a heavy container.

[0002]

2. Description of the Related Art In an outer container having a high self-shape retention capability,
2. Description of the Related Art A laminated container formed by laminating a thin inner container having high light-shielding properties and high resistance to contents has been effectively used as a container for storing and discharging a liquid such as a high-grade cosmetic liquid that is not suitable for light irradiation.

[0003] In this laminated container, a dedicated pouring tool such as a pump is assembled, and the liquid content can be poured out while the container is always kept in a closed state, and the light-shielding state of the liquid content in the container is always maintained. I am trying to do it.

In this laminated container, the inner container exhibiting a high light-shielding property has to be entirely black due to the pigment added for the purpose of light-shielding. It is desirable that the outer container has a bright color, so the outer container is molded with a bright color such as white.

[0005] As described above, the outer container and the inner container of the laminated container are integrally laminated and blow-molded in colors having greatly different brightness, but the parison blow-molded portion to be blow-molded in the laminated container is located. At the bottom of the laminated container, there was the inconvenience that the dark black color of the inner container was linearly exposed on the bright outer surface formed by the outer container.

That is, a parison having a two-layer structure of an outer layer for a light-colored outer container and an inner layer for a dark-colored inner container,
When cut off from the left and right with a blow mold, the cut end surface of the dark inner layer is exposed between the light outer layers in a crushed state, and the crushed cut end surface of the inner container molded with this inner layer Are exposed as black lines in the light colored appearance of the outer container molded with the outer layer.

[0007] In order to solve this inconvenience, a laminated container is conventionally used as an inner container, and the outer container is externally fitted to the body of the inner container for the purpose of imparting a self-supporting function and improving the appearance and appearance. The outer container is opaque for the purpose of concealing the body of the inner container.

[0008]

However, in the above-mentioned prior art, since the outer container is opaque, the appearance appearance to be exhibited is simple, has little change, and has a flat and three-dimensional appearance. There was a problem that it was impossible to obtain a satisfactory decorative effect.

Therefore, the present invention has been made to solve the above-mentioned problems in the prior art, and it is possible to use a transparent outer container which is fitted to the body of the inner container. It is an object of the present invention to provide a rich and varied decorative effect that is rich in variety.

[0010]

Means for solving the above-mentioned problems of the present invention are as follows: a mouthpiece is provided at the upper end of a cylindrical body having a bottom through a shoulder having an engaging piece projecting from an outer peripheral surface thereof; Having an opaque synthetic resin inner container provided with a light-shielding property with an upright portion. The body of the inner container is housed, and the lower surface facing the lower portion of the body is shielded from light such as gradation. At the upper end of the barrel with a bottomed cylinder that has been treated and has a self-supporting function,
Another object of the present invention is to have a transparent synthetic resin outer container in which a shoulder portion of the middle container is fitted, and an opening tubular piece having an engagement notch with which the engagement piece of the middle container is formed is erected.

It is preferable that the outer peripheral surface of the barrel of the outer container has a regular polygonal shape.

The color of the light-shielding treatment is preferably the same as the surface color of the body of the middle container. In this case, it is preferable that the outer container is also colored and transparent of the same color as the surface of the middle container.

It is effective that the light-shielding process is configured to gradually increase the light-shielding power from the top to the bottom.

A ring-shaped inner flange whose lower surface is in contact with the upper end of a short cylindrical fitting cylindrical piece externally fitted to the opening cylindrical piece of the outer container, and whose lower surface is in contact with the upper surface of the shoulder of the middle container assembled to the outer container. It is desirable that the assembly of the inner container and the outer container is held by an assembling ring formed by connecting pieces.

[0015]

[Action]

By engaging the engaging piece of the shoulder with the engaging notch of the outer container having a self-supporting function, the inner container is held in a suspended manner by the opening cylindrical piece of the outer container at its shoulder, The double container, which is a combination of the inner container and the outer container, stably stands alone.

Since the lower surface of the barrel of the transparent outer container is subjected to light-shielding treatment, the lower part of the body of the inner container facing the lower part of the outer container barrel is shielded by the light-shielding action of the light-shielding treatment. It is completely concealed and cannot be seen from the outside, which ensures that the unsightly parison cutout at the lower part of the body of the inner container, in particular at the lower end of the body, is prevented.

Since the light-shielding treatment applied to the surface of the barrel of the transparent outer container is only at the lower part of the barrel, the upper part of the body of the middle container is visible through the outer container. Therefore, an optical decoration effect appears due to the prism effect exerted by the transparent outer container.

In particular, by forming the outer peripheral surface of the barrel of the outer container into a regular polygonal shape and changing the refraction of the transmitted light, a higher prism effect can be exhibited, thereby providing a preferable and rich stereoscopic effect. The optical decoration effect is exhibited.

By making the color of the light-shielding process the same as the surface color of the body of the middle container, the sense of unity between the body of the middle container and the light-shielding process is emphasized, and a unique appearance like a raised appearance is realized. At this time, by making the outer container the same color as the body surface of the inner container, the sense of unity is further emphasized, and the depth is emphasized as a whole.

The light-shielding process is configured so that the light-shielding power is gradually increased from the top to the bottom, so that the optical decoration effect appearing becomes lighter as a whole,
The floating feeling of the entire transparent part is emphasized.

By providing an assembling ring for holding the assembly of the inner container and the outer container,
There is no need to integrally provide a complicated structure for the non-detachable mutual assembling, and the structure of the inner container and the outer container, which are the main parts, is simplified accordingly.

[0023]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an outer container 6 fitted to a portion of a middle container 1 which is a laminated container in which a high-grade cosmetic liquid is stored and a dedicated pump 15 for discharging a content liquid is assembled, from a shoulder 3 to a body 2. The inner container 1 and the outer container 6 are assembled and held together by an assembling ring 12, and a sealing piece 16 for sealing is provided at a nozzle port of a pump 15 mounted on the inner container 1. An irregular semi-longitudinal section of an embodiment of a double container made of a synthetic resin, which is fitted tightly and fitted with an overcap 17 fitted to the pump 15, is shown.

The inner container 1 (see FIGS. 2 and 3) is composed of an outer container 1a having a stable self-shape retention ability and a thin inner container provided with a high light-shielding property and laminated inside the outer container 1a. 1b, the outer periphery of the body 2 having a slightly enlarged diameter and a flat upper surface at the upper end of a body 2 having a bottom swelling in a substantially arc shape. It is constituted by standing up a mouthpiece part 5 having a thread formed on the surface, and four engaging pieces 4 are protruded at equal intervals on the short cylindrical outer peripheral surface of the shoulder part 3. doing.

Both the outer container 1a and the inner container 1b of the inner container 1 are provided with a light-shielding property for the purpose of protecting the content liquid. In particular, the inner container 1b has a high light-shielding property and stable physical properties against the content liquid. And is given.

The outer container 6 (see FIG. 4 and FIG. 5) has an opening cylinder piece 10 having a diameter reduced through a stepped portion at the upper end of a barrel 7 having a bottomed cylindrical shape slightly enlarged in diameter. A leg piece 8 for providing a stable self-standing function is protruded around a peripheral edge of a lower surface of a bottom wall of the barrel 7, and an engaging piece of the inner container 1 is provided on an open tubular piece 10. 4 are formed at regular intervals with four engaging notches 11 fitted and engaged from above, and the whole is formed of a transparent synthetic resin.

The outer peripheral surface of the barrel 7 of the outer container 6 has a regular polygonal cylindrical surface shape, and a substantially lower half has a light shielding process such as a gradation process or a sand blast process in which the light blocking ability increases as it goes downward. 9, the light-shielding ability of the light-shielding process 9 is such that the portion facing the lower end of the body 2 of the inner container 1 attached to the outer container 6 does not make the lower end of the body 2 visible. It has become about.

The inner container 1 is inserted into the engaging notch 11 of the outer container 6 so that the engaging piece 4 is fitted into the inner container 1 so that the body 2 is inserted in a suspended manner, and the port 15 to which the pump 15 is mounted. The tubular portion 5 is assembled to the outer container 6 in a state of protruding upward, but the engaging piece 4 of the inner container 1 is attached to the outer container 6 of the inner container 1.
In the assembled state, the protruding end is set to a protruding height that does not protrude outward from the outer peripheral surface of the open tubular piece 10 of the outer container 6.

As described above, the assembly of the inner container 1 to the outer container 6 is achieved by engaging the projections formed in the inner container 1 with the notches formed in the outer container 6.
The outer diameter of the functional portion for assembling the middle container 1 can be reduced, thereby making it possible to reduce the degree of increase in the outer diameter of the entire container due to the double structure.

The fitting ring 12 (see FIG. 1) is attached to the open tubular piece 10 of the outer container 6 while the inner flange piece 13 is in contact with the upper surface of the shoulder 3 of the inner container 1. By external fitting and undercut connection, the assembly between the inner container 1 and the outer container 6 is firmly and stably held.

The assembly ring 12 not only achieves the simplification of the assembly of the inner container 1 and the outer container 6 by holding the assembly of the inner container 1 and the outer container 6, but also achieves the simplification of the structure. It is possible to apply color decoration to the shoulders that stand out as the exterior of the entire container.

When the color of the outer surface of the inner container 1 is white, and the white light-shielding treatment 9 applied to the colorless and transparent outer container 6 is such that the light-shielding ability is increased from the top to the bottom,
The outer appearance of the outer container 6 portion appears in a substantially upper half, in which bright and dark vertical stripes rich in three-dimensional effect due to the prism effect exerted by the outer container 6 appear, and as the bright and dark vertical stripes move downward, they become sharper. It loses its color and turns into a pale, dull white cloudy color.

[0033]

Since the present invention has the above-described structure, the following effects can be obtained. Since the lower surface of the transparent outer container to be externally fitted to the inner container is subjected to light shielding, the lower end of the body of the inner container in the outer container is not exposed to the outside, which is not preferable in appearance. The concealment of the lower end of the body of the middle container can be reliably achieved.

Since the outer container is basically transparent, a prism effect can be given to the reflected light from the surface of the inner container accommodated therein, whereby the outer appearance of the container is rich in three-dimensional appearance and change. An optical low decoration effect can be provided.

When the light-shielding process is performed in such a manner that the light-shielding ability is enhanced from the top to the bottom, the optical decoration effect in which the transparent portion of the outer container appears gradually disappears as the object moves downward, and it is as if the light-shielding effect is reduced. An extremely distinctive decorative effect can be exhibited, in which the optical decorative part is observed in a floating state.

By making the outer peripheral surface of the barrel of the outer container into a regular polygonal cylindrical shape, a large change width can be given to the degree of refraction of light in the prism effect exerted by the outer container. A deep optical decoration effect can be exhibited.

[Brief description of the drawings]

FIG. 1 is an irregular semi-vertical overall front view showing an embodiment of the present invention in which a pump is assembled.

FIG. 2 is an entire front view of the inner container in the embodiment shown in FIG.

FIG. 3 is a plan view of the middle container shown in FIG. 2;

FIG. 4 is an overall front view of the outer container in the embodiment shown in FIG.

FIG. 5 is a plan view of the outer container shown in FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; Middle container 1a; Outer container 1b; Inner container 2; Trunk 3; Shoulder 4; Engagement piece 5; Mouth tube 6; Outer container 7; Body 8; Leg 9; Shading treatment 10; Piece 11; engagement notch 12; assembly ring 13; inner flange piece 14; fitting tube piece 15; discharge pump 16; sealing piece 17;

Continuing from the front page (72) Inventor Osamu Ueda 2150 Nishi-Mizunuma, Haga-cho, Haga-gun, Tochigi Pref. Inside of the Utsunomiya Plant of Yoshino Kogyosho Co., Ltd. (72) Hiroyuki Shigesawa 3-2-6 Oshima, Koto-ku, Tokyo Yoshino Inside the industrial site (56) References JP-A-6-80630 (JP, U) JP-A-7-8221 (JP, U) JP-A-6-78274 (JP, U) JP-A 39-21143 (JP, U.S.A.) Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65D ^6/ 00-13/02 B65D 23/00

Claims (6)

(57) [Claims] 1. A mouthpiece (5) is erected on the upper end of a bottomed cylindrical body (2) via a shoulder (3) having an engagement piece (4) projecting from the outer peripheral surface. A medium container (1) made of an opaque synthetic resin provided with a light-shielding property and a body (2) of the medium container (1) are housed therein.
The shoulder (3) is provided at the upper end of a bottomed cylindrical body (7) having a self-supporting function, with a light-shielding treatment (9) such as gradation applied to the lower surface facing the lower part of (2). A transparent synthetic resin outer container in which an open tubular piece (10) having an engagement notch (11) with which the engagement piece (4) is engaged and which is fitted therein is erected.
(6) A synthetic resin double container comprising: 2. The double container made of synthetic resin according to claim 1, wherein the outer peripheral surface of the barrel (7) of the outer container (6) has a regular polygonal shape. 3. The color of the shading treatment (9) is changed to the body of the inner container (1).
(2) The double container made of synthetic resin according to claim 1, which has the same surface color. 4. The double container made of synthetic resin according to claim 3, wherein the outer container (6) is colored and transparent having the same color as the surface of the inner container (1). 5. The double container made of synthetic resin according to claim 1, wherein the light-shielding treatment (9) is configured to gradually increase the light-shielding power as going from top to bottom. 6. The outer container (6) has a short cylindrical fitting tube piece (14) externally fitted to the open cylindrical piece (10) of the outer container (6).
Assembling ring composed of a series of ring-shaped inner flange pieces (13) that abut against the shoulder (3) upper surface of the inner container (1) assembled to (6)
The double container made of a synthetic resin according to claim 1, wherein the assembly of the inner container (1) and the outer container (6) is held by (12).