JP7670595B2 - Composite Containers - Google Patents

Description

The present invention relates to composite containers (containers made of different materials), in particular composite containers used to store fragrances, deodorants, dehumidifiers, etc.

A composite container is known that is a cylindrical body with a bottom, with a circumferential portion of the cylindrical wall being made of a column made of synthetic resin, and the remaining cylindrical wall portion and the bottom wall portion being made of paper members assembled from paper sheets (Patent Document 1). The opening of the cylindrical body is closed with a sealing lid.
A paper container for storing deodorants and the like is known, which has a rectangular tubular container body assembled from a single sheet of unfolded paper and has multiple vertically long side panels, with multiple air vents in each side panel and breathable nonwoven sheets attached to the inside of the side panels (Patent Document 2).

JP 3-197109 JP2001-31063A

When the container of Patent Document 1 is used for storing fragrances or the like, it is desirable to incorporate the breathable sheet of Reference Document 2 near the opening so that when the sealing lid is removed, the container is in communication with the outside via the breathable sheet.
However, there is a problem in how to incorporate the breathable sheet into the opening. For example, if the breathable sheet is incorporated just below the sealing lid, there is a risk that the breathable sheet will be peeled off when the sealing lid is removed.

The object of the present invention is to provide a composite container in which a breathable sheet is incorporated into the opening together with a sealing lid so that it does not come off from the opening when the sealing lid is removed.

The first means is a composite container made of different materials,
A container body 2 having an opening A1 on an upper end side;
and a closing means 40 for closing the opening A1.
The container body 2 is
a synthetic resin frame body 4 formed by connecting a lower loop portion 6 and an upper loop portion 18 facing each other with at least one column portion 8;
A paper-made main covering material 32 that covers the entire periphery of the side surface SL of the frame body 4;
a secondary covering material 36 that airtightly covers the lower surface SB of the frame body 4;
The opening A1 is formed on the inside of the upper loop portion 18,
At least one horizontal beam 28 is provided so as to be continuous with the inner peripheral surface of the upper loop portion 18 and cross the opening A1.
In addition, an upward stepped surface portion 24 is provided around the inner periphery of the upper loop portion 18, the stepped surface portion 24 being lower than the top surface portion 20 on the outer periphery of the upper loop portion 18.
The blocking means 40 consists of an air-permeable sheet 42 arranged along the beam-shaped horizontal member 28 and attached to the entire circumference of the step surface portion 24, and a sealing lid 44 releasably attached to the entire circumference of the top surface portion 20 with a gap g between the air-permeable sheet 42 and the sealing lid 44.

The present invention is directed to a composite container having an opening A1 of a container body 2 closed by a closing means 40 as shown in FIG.
The container body 2 comprises a synthetic resin frame body 4 formed by connecting a lower loop-shaped portion 6 and an upper loop-shaped portion 18 facing each other with a column-shaped portion 8, a paper main covering material 32 covering the entire periphery of the side surface SL of the frame body 4, and a secondary covering material 36 airtightly covering the underside SB of the frame body 4.
As shown in FIG. 1A, at least one horizontal beam 28 is provided adjacent to the inner peripheral surface of the upper loop portion 18 and crosses the opening A1.
Additionally, an upward stepped surface portion 24 is provided around the inner periphery of the upper loop portion 18, the stepped surface portion 24 being lower than the top surface portion 20 on the outer periphery.
As shown in FIG. 1(B), the blocking means 40 is composed of an air-permeable sheet 42 arranged along the beam-shaped horizontal member 28 and attached to the entire periphery of the step surface portion 24, and a sealing lid 44 releasably attached to the entire periphery of the top surface portion 20 with a gap g between the air-permeable sheet 42 and the top surface portion 20.
According to this structure, when the sealing lid 44 is peeled off, the breathable sheet 42 can be prevented from being peeled off together with the sealing lid 44 .

The second means comprises the first means, and the upper surface 29 of the beam-like horizontal member 28 supports the breathable sheet 42;
The breathable sheet 42 is in-molded onto the frame body 4 .

In this embodiment, the upper surface 29 of the beam-like horizontal member 28 supports the breathable sheet 42 as shown in FIG. 1(B).
According to this structure, the breathable sheet 42 can be reliably held at a position separated from the sealing lid 44 .
Furthermore, since the breathable sheet 42 is in-molded onto the frame body 4, the effort required to incorporate the breathable sheet 42 can be eliminated compared to, for example, a case in which the breathable sheet 42 is later attached to the frame body 4.

The third means includes the first means or the second means, and the frame body 4 includes a circumferential attachment surface portion 19 formed on an outer peripheral surface of at least one of the upper loop portion 18 and the lower loop portion 6, and a vertical attachment surface portion 10 formed on an outer surface of the columnar portion 8;
The main covering material 32 is attached to the circumferential attachment surface portion 19 and the vertical attachment surface portion 10 so as to close the gap V between the lower loop portion 6 and the upper loop portion 18 .

In this method, as shown in Figure 3 (B), the main covering material 32 is adhered to a circumferential adhesion surface portion 19 formed by the outer peripheral surface of at least one of the upper loop-shaped portion 18 and the lower loop-shaped portion 6 of the frame body 4, and a vertical adhesion surface portion 10 formed by the outer surface of the columnar portion 8 connecting the upper loop-shaped portion 18 and the lower loop-shaped portion 6.
According to this structure, the proportion of the surface area of the container body 2 that is covered with paper is increased, and the amount of paper used relative to the synthetic resin can be increased while the main covering material 32 is reliably attached.

The fourth means includes the third means, and an engagement protrusion 14 is provided vertically on the side surface SL of the frame body 4 from the vertical attachment surface 10 of the columnar portion 8 to the circumferential attachment surface 19 of the columnar portion 8,
The engaging protrusion 14 is disposed at the widthwise intermediate portion of the longitudinal adhesive surface portion 10,
A pair of horizontal end portions 33 on both circumferential sides of the main covering material 32 are abutted against side end faces 15, which are both circumferential sides of the engaging protrusion 14, and are attached to the vertical attachment surface portion 10 and the circumferential attachment surface portion 19 on both sides of the engaging protrusion,
The main covering material 32 is fixed to the frame body 4 by insert molding.

In this means, as shown in FIG. 3(B), an engaging protrusion 14 is provided vertically across the side surface SL of the frame body 4 from the vertical attachment surface 10 of the columnar portion 8 to the circumferential attachment surface 19 .
The engaging protrusion 14 is disposed at the widthwise intermediate portion of the longitudinal adhesive surface portion 10 .
As shown in Figure 3 (A), a pair of horizontal end portions 33 on both circumferential sides of the main covering material 32 are abutted against the side end faces 15, which are both circumferential sides of the engaging protrusion 14, and are attached to the vertical adhesive surface portion 10 and the circumferential adhesive surface portion 19 on both sides of the engaging protrusion 14.
According to this structure, the surface area of the main covering material 32 can be increased while the main covering material 32 can be securely attached to the frame body 4, and in particular, peeling of the lateral end portion 33 from the frame body 4 can be prevented.
Moreover, the above-mentioned structure can be easily realized by fixing the main covering material 32 and the frame body 4 by insert molding.

According to the present invention, the breathable sheet that is incorporated into the opening together with the sealing lid can be prevented from coming off the opening when the sealing lid is removed.

1 shows the structure of a composite container according to an embodiment of the present invention, in which FIG. 1(A) is a plan view of the composite container, and FIG. 1(B) is a cross-sectional view taken from the I(B)-I(B) direction of FIG. 1(A). 2(A) is a cross-sectional view of the composite container taken along the line II(A)-II(A) of FIG. 1, and FIG. 2(B) is a transverse cross-sectional view of the container taken along the line II(B)-II(B) of FIG. 2(A). FIG. 3(A) is a perspective view showing the composite container with a part of the closing means cut away, and FIG. 3(B) is a perspective view showing the frame body of the composite container as viewed from the same direction. 4A and 4B are explanatory diagrams of embodiments of the main coating material of the composite container, in which FIG. 4A shows the structure of a first embodiment of the main coating material for the portion surrounded by the circular broken line in FIG. 2A, and FIG. 4B shows the structure of a second embodiment of the main coating material for the same portion.

Figures 1 to 4 show a composite container made of different materials according to an embodiment of the present invention. As shown in Figure 3 (A), this composite container comprises a container body 2 and a closing means 40.

The container body 2 has an opening A1 on the upper end side. The container body 2 is made up of a frame body 4, a main covering material 32 that covers the entire periphery of the side surface SL of the frame body 4, and a secondary covering material 36 that covers the bottom surface SB of the frame body 4.
In this specification, the "side surface" of the frame body 4 refers to the entire surface (peripheral side surface) appearing on the side of the frame body. As shown in Fig. 3(B) , this side surface SL includes a vertical attachment surface portion 10 and a circumferential attachment surface portion 19, which will be described later.

The frame body 4 is a member made of synthetic resin (plastic) and is formed by connecting a lower loop portion 6 and an upper loop portion 18 facing each other with an appropriate number of (preferably multiple) pillar portions 8 .
In this embodiment, the lower loop portion 6 and the upper loop portion 18 are formed in a substantially rectangular shape when viewed from above, as shown in the plan view of Figure 1 (A), and four columnar portions 8 are provided corresponding to the four corners C.
In the illustrated example, the corners C of the rectangle are rounded.
However, these structures can be modified as appropriate. For example, the number of pillar portions 8 may be one.
The opening A1 is formed on the inside of the upper loop portion 18.
By forming the frame body 4, which corresponds to the skeleton of the container body 2, from plastic, the strength of the container can be ensured. In addition, the sealing performance when an aluminum seal or the like is attached and the fitting accuracy with other parts are also improved.

The lower loop portion 6 and the upper loop portion 18 are formed in similar shapes so as to overlap each other when viewed from above, as shown in FIG. 1(A).
However, in the illustrated example, as described below, as shown in Figure 3 (A), the lower loop-shaped portion 6 is formed as a ring-shaped plate portion, and the upper loop-shaped portion 18 is formed as a frame-like portion with an L-shaped cross-section, and they are not of the same shape.

In the illustrated example, the lower loop portion 6 is formed as a ring-shaped plate having a constant width in the lateral direction (direction from the inside to the outside of the loop).
The columnar portion 8 stands up from the inner peripheral plate portion 6a of this ring-shaped plate portion, and the lower end of the main covering material 32 wrapped around the columnar portion 8 abuts against the outer peripheral plate portion 6b.
A content filling opening A2 is opened on the inside of the lower loop portion 6.
A secondary covering material 36 (described later) for closing the contents filling opening A2 is attached to the lower surface portion 7 of the lower loop portion 6.

In this embodiment, as shown in FIG. 3B, the columnar portion 8 is formed in a vertical plate shape having a constant width along the circumferential direction (in the illustrated example, a curved plate shape along the aforementioned corner C).
However, the shape of the columnar portion 8 can be changed as appropriate.
The outer surface of the columnar portion 8 is formed in a smooth shape as a vertical attachment surface portion 10 for attaching a main covering material 32, which will be described later.
However, one of the four columnar portions 8 is provided with a vertical engaging protrusion 14 positioned in the middle of the width of the vertical adhesive surface portion 10, and this engaging protrusion 14 is configured to divide the vertical adhesive surface portion 10 into a pair of half-surface portions 12.
The engaging protrusion 14 is formed so as to cross the side surface SL of the frame body 4 from the vertical attachment surface portion 10 to a circumferential attachment surface portion 19 described later.
The engaging protrusion 14 has a pair of side end faces 15 on both circumferential sides, and is configured so that a lateral end portion 33 of a main covering material 32 (described later) can abut against these side end faces 15.

The upper loop portion 18 is a frame-shaped portion connected to the columnar portion 8, and as shown in FIG. 3(B), has a top surface portion 20 on its outer periphery and a flat stepped surface portion 24 that is lower than the top surface portion 20 on its inner periphery.
In the illustrated example, the upper loop portion 18 is formed with an L-shaped cross section as shown in FIG. 2(A), and a vertical surface portion 22 is formed between the top surface portion 20 and the step surface portion 24.
The outer circumferential surface of the upper loop portion 18 is smoothly formed as a circumferential attachment surface portion 19 for attaching the main covering material 32 , and is continuous with the longitudinal attachment surface portion 10 in a flush manner.
The above structure can be modified as appropriate.
For example, the circumferential adhesive surface portion 19 may be provided on the lower loop portion 6 instead of the upper loop portion 18. In this case, the shape of the lower loop portion 6 may be, for example, a frame having an L-shaped cross section instead of the ring-shaped plate portion described above. Also, the circumferential adhesive surface portion may be provided around both the upper loop portion 18 and the lower loop portion 6.

The upper loop portion 18 is provided with a beam-like horizontal member 28 that is installed between two locations in the circumferential direction of the upper loop portion 18 and serves as a support means 26 for supporting a breathable sheet 42 (described later).
The illustrated horizontal beam member 28 is installed between a pair of diagonal corners C of the upper loop portion 18. The two horizontal beam members 28 are connected together at their longitudinal intermediate portions (intersections 30).
In this embodiment, the upper surface 29 of the beam-like horizontal member 28 is a flat supporting surface that supports the breathable sheet 42, as shown in FIG. 1(B), and is formed flush with the step surface portion 24.
However, these structures can be modified as appropriate. For example, instead of the two diagonally intersecting horizontal beams 28, multiple parallel horizontal beams spaced apart from each other may be provided. Also, the number of horizontal beams 28 may be one.

The main covering material 32 is a paper member that covers the entire periphery of the side surface SL of the frame body 4 .
The main covering material 32 has a horizontally elongated rectangular shape (strip shape), and in this embodiment, is attached to the vertical attachment surfaces 10 of the four columnar portions 8 and the circumferential attachment surface 19 of the upper loop portion 18 .
By doing so, as shown in FIG. 2(A), the main covering material 32 is provided so as to close the gap V between the lower loop portion 6 and the upper loop portion 18.
Specifically, the upper end 35 of the main covering material 32 is fixed to the circumferential adhesive surface portion 19 over the entire longitudinal (horizontal) length, and the lower end 34 of the main covering material 32 is abutted against (or adjacent to) the outer peripheral plate portion 6b of the lower loop-shaped portion 6.
The main cladding material 32 also has a pair of lateral ends 33 which are both ends in the circumferential direction.
In this embodiment, a structure is adopted in which these lateral end portions 33 are abutted against the side end faces 15, which are both circumferential sides of the engaging protrusion 14, and are attached to the vertical adhesive surface portion 10 and the circumferential adhesive surface portion 19 on both sides of the engaging protrusion.
This structure can be easily realized by fixing the main covering material 32 to the frame body 4 by insert molding.

According to the structure of the present invention, the sides of the synthetic resin frame body 4, which is the framework, are covered with the paper main covering material 32, so that the proportion of the paper portion in the surface area of the composite container can be increased, and the paper content rate in the entire container can be increased. If the paper content rate is 51% or more, the material can be labeled as paper, which has the advantage that it can be disposed of as combustible waste.
The reason for using paper as the material for the main covering material 32 is that it is easy to absorb the aroma and moisture of the contents, which contributes to improving the effects of aroma, moisture removal, etc. This allows the aforementioned effects of the contents to be exerted more than when plastic is used.
Furthermore, by reducing the amount of synthetic resin used, an environmentally friendly container can be provided.
In this specification, the term "paper" refers to both a breathable material made almost entirely of paper material and a material that has a paper base but does not have breathability.
Each of these aspects is shown as an example of the primary coating 32 in FIG.
In Fig. 4(A), the main covering material 32 is mainly made of paper so as to be permeable to aromatic components or moisture. A thin resin layer (not shown) is laminated on the inner surface of the paper to improve adhesion to the synthetic resin frame body 4.
In this structure, when an aromatic or moisture absorbing agent is stored in the composite container, the adsorption effect is achieved over a larger surface area than in conventional plastic containers. The same is true for the aromatic and moisture-removing effects.
In FIG. 4B, the main covering material 32 is formed by laminating a sealing layer 32b made of a material having gas barrier properties such as aluminum on the inside of a base layer 32a made of paper.
The base layer 32a is given the same or similar scent as the aromatic substance contained therein.
With this structure, for example, a purchaser can check what kind of scent a product has while it is in distribution.
Furthermore, the provision of the sealing layer 32b can also protect the contents, such as the fragrance, from being reduced.

The secondary covering material 36 is a member (seal bottom) that airtightly covers the lower surface SB of the frame body 4, and is fixed to the frame body 4 by tightly adhering its peripheral end to the lower surface portion 7 of the lower loop-shaped portion 6.
The secondary covering material 36 is attached so as to close the content filling port A2 after the content (not shown) is stored inside the container through the content filling port A2.
The secondary covering material 36 may be, for example, an aluminum seal. Although not shown, a lid part that is a separate part from the frame body may be detachably fitted into the content filling port A2 to enable refilling of the content.

The closing means 40 has the role of closing the opening A1 of the frame body 4, and is composed of an air permeable sheet 42 and a seal lid 44, which are separate bodies.
The breathable sheet 42 is attached to the entire periphery of the step surface portion 24 of the upper loop portion 18 and to the upper surface 29 of the beam-like horizontal member 28 .
The breathable sheet 42 may be made of a mesh or a nonwoven material.
In this embodiment, the breathable sheet 42 is fixed to the frame body 4 by in-mold molding. However, these structures can be modified as appropriate.
The sealing lid 44 seals the opening A1. A peripheral edge 46 of the sealing lid 44 is releasably attached to the top surface 20 of the upper loop portion 18.
The seal lid 44 can be formed of, for example, an aluminum seal.

In the above-described configuration, when an aromatic or dehumidifying agent is stored inside the container body 2, by hooking one end of the sealing lid 44 with one's fingers and pulling it up, the sealing lid 44 is removed from the top surface 20 of the upper loop portion 18.
At this time, since the breathable sheet 42 is disposed away from the seal lid 44 with the gap g therebetween, the breathable sheet 42 will not peel off from the upper loop portion 18 together with the seal lid 44 .
The opening A1 is opened by removing the sealing lid 44. As a result, when the content is an aromatic, the aromatic component passes through the breathable sheet 42 and is released to the outside.
When the content is a dehumidifying agent, the humidity in the room passes through the breathable sheet 42 and enters the container body 2, and is absorbed by the content.

According to the above-described configuration and action, the side surface SL of the synthetic resin frame body 4 formed by connecting the lower loop-shaped portion 6 and the upper loop-shaped portion 18 with the column-shaped portion 8 is covered with a paper main covering material 32, and a breathable sheet 42 is attached to the stepped surface portion 24 provided around the inner periphery of the upper loop-shaped portion 18. A gap g is left between this breathable sheet 42 and the sealing lid 44, which is removably adhered to the top surface portion 20 of the upper loop-shaped portion 18. Therefore, peeling of the breathable sheet 42 can be prevented when the sealing lid 44 is removed.
Furthermore, since the upper surface 29 of the beam-like horizontal member 28 supports the breathable sheet 42 , the breathable sheet 42 can be securely held at a position separated from the sealing lid 44 .
Furthermore, since the main covering material 32 is attached to the circumferential adhesive surface portion 19 formed by the outer peripheral surface of at least one of the upper loop-shaped portion 18 and the lower loop-shaped portion 6 of the frame body 4, and the vertical adhesive surface portion 10 formed by the outer surface of the columnar portion 8 connecting both loop-shaped portions, the main covering material 32 can be reliably attached while increasing the amount of paper used relative to the amount of synthetic resin used.
In addition, an engaging protrusion 14 is provided running vertically across the side surface SL of the frame body 4, extending from the vertical adhering surface portion 10 of the columnar portion 8 to the circumferential adhering surface portion 19, and the lateral end portion 33 of the main covering material 32 is attached to the vertical adhering surface portion 10 and the circumferential adhering surface portion 19 on both sides of the engaging protrusion while abutting against the side end face 15 of the engaging protrusion 14.Therefore, the surface area of the main covering material 32 can be increased while the main covering material 32 can be securely attached to the frame body 4.

2: Container body 4: Frame body 6: Lower loop-shaped portion (ring-shaped plate portion)
6a: Inner peripheral plate portion 6b: Outer peripheral plate portion 7: Lower surface portion
8... Column part 10... Vertical adhesion surface part 12... Half surface part 14... Engagement protrusion 15... Side end surface 18... Upper loop-shaped part 19... Circumferential direction side adhesion surface part 20... Top surface part 22... Vertical surface part 24... Step surface part 26... Supporting means 28... Beam-shaped horizontal member 29... Upper surface 30... Intersection part 32... Main covering material 32a... Base layer 32b... Seal layer 33... Lateral end portion 34... Lower end portion
35: Upper end portion 36: Secondary covering material (bottom portion of seal)
40: Closing means 42: Breathable sheet 44: Sealing cover 46: Peripheral end
A1...Opening A2...Contents filling port C...Corner g...Gap SB...Bottom surface SL...Side surface V...Gap

Claims (4)

A composite container made of different materials,
A container body (2) having an opening (A1) on an upper end side;
and a closing means (40) for closing the opening (A1),
The container body (2) is
a synthetic resin frame body (4) formed by connecting a lower loop portion (6) and an upper loop portion (18) facing each other with at least one column portion (8);
A paper main covering material (32) that covers the entire periphery of the side surface (SL) of the frame body (4);
a secondary covering material (36) that airtightly covers the lower surface (SB) of the frame body (4);
The opening (A1) is formed on the inside of the upper loop portion (18),
At least one beam-like horizontal member (28) is provided so as to be continuous with the inner peripheral surface of the upper loop-shaped portion (18) and to cross the opening (A1),
Moreover, an upward stepped surface portion (24) is provided around the inner periphery of the upper loop portion (18), the stepped surface portion (24) being lower than the top surface portion (20) on the outer periphery of the upper loop portion (18),
The composite container is characterized in that the closing means (40) comprises an air-permeable sheet (42) arranged along the beam-like horizontal member (28) and attached to the entire periphery of the step surface portion (24), and a sealing lid (44) releasably adhered to the entire periphery of the top surface portion (20) with a gap (g) between the air-permeable sheet (42) and the top surface portion (20). The upper surface (29) of the beam-like horizontal member (28) supports the breathable sheet (42),
2. The composite container according to claim 1, wherein the breathable sheet (42) is fixed to the frame body (4) by in-mold molding. The frame body (4) has a circumferential attachment surface portion (19) formed on the outer peripheral surface of at least one of the upper loop portion (18) and the lower loop portion (6), and a vertical attachment surface portion (10) formed on the outer surface of the columnar portion (8),
The composite container according to claim 1 or 2, characterized in that the main covering material (32) is attached to the circumferential attachment surface portion (19) and the vertical attachment surface portion (10) so as to close the gap (V) between the lower loop portion (6) and the upper loop portion (18). An engaging protrusion (14) is provided vertically on the side surface (SL) of the frame body (4) from the vertical attachment surface (10) of the columnar portion (8) to the circumferential attachment surface (19),
The engaging protrusion (14) is disposed at the widthwise intermediate portion of the longitudinal adhesive surface portion (10),
A pair of horizontal end portions (33) on both circumferential sides of the main covering material (32) are attached to the longitudinal attachment surface portion (10) and the circumferential attachment surface portion (19) on both sides of the engaging protrusion (14) in a state where the pair of horizontal end portions (33) are abutted against side end faces (15) which are both circumferential sides of the engaging protrusion (14), and
4. The composite container according to claim 3, wherein the main covering material (32) is fixed to the frame body (4) by insert molding.

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