JPH10120058A - Container made of synthetic resin sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container made of a synthetic resin sheet wherein when a part of contents is stored after unsealing, a sealing member or part is not needed at all, a sealing state can be kept or held by the container itself, and a large storage space is not required, because a lid does not open to become bulky. SOLUTION: In a container comprising a container body 1 and a lid 2 made of a synthetic resin sheet material wherein they are coupled and molded foldably at a fold 3, a swelling protrusion 4 having a large diameter part 43 with a top 42 protruding from a swelling base 41 in a planar direction is provided on either of outer peripheral parts 1E, 2E of both bodies 1, 2. On the remaining part, a swelling recess 5 comprising a recess 50 sized to receive the whole top 42 on the swelling protrusion 4 and a recessed engaging part which is a recess to be engaged with the swelling protrusion 4 and has a large diameter part with a bottom side protruding from a recessed base in a planner direction which are contiguously formed is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container made of a synthetic resin sheet in which a container body and a lid are integrally connected so as to be foldable and integrated at a bent portion using a synthetic resin sheet material. .

[0002]

2. Description of the Related Art In a conventional container made of a synthetic resin sheet of this type, in which a container body and a lid body are integrally connected so as to be foldable at a bent portion, the container is not allowed to float when sealed. Sealing was performed by fastening the edge portion at several places with a stapler, or attaching the edge portion to the outer peripheral edge portion using an adhesive tape.

[0003]

Therefore, in this kind of conventional container, once the stapler or the adhesive tape is removed at the time of opening and the container is opened once, the container lid is opened by the restoring force of the bent portion. When it is naturally opened, a part of the contents of the container is taken out, and the remaining contents are stored in a refrigerator or the like.For example, in a chicken egg packaging container, after taking out the required number of eggs, the remaining eggs are removed. When stored in a refrigerator, the open lid of the container is bulky and obstructive, and has a problem that a large storage space is required.

[0004] Therefore, an object of the present invention is to solve the problem of such a conventional resin sheet container, and at the time of sealing, a tape seal or the like may be applied as described above. However, at least for proof that it is a sealed thing, that is, it may be of the order of sticking a sealing seal to prove that it is an unopened product, and when storing a part of the contents after opening, A resin sheet that can be maintained or held by the container itself without any need for any sealing member or component, and has a structure in which the lid is bulky and does not require a large storage space. It is intended to provide a container made of such a material.

[0005]

Means for Solving the Problems The structure of the present invention for achieving the object will be described with reference to the reference numerals used in the description of the embodiments. The first structure of the present invention is a container made of a synthetic resin sheet material. A container in which the main body 1 and the lid 2 are connected and formed so as to be foldable at the bent portion 3, and one of the outer peripheral portions 1 </ b> E and 2 </ b> E of the two bodies 1 and 2 is larger than the bulging base 41. A bulging projection 4 having a large-diameter portion 43 whose top 42 protrudes in the plane direction is provided, and the other of the bulging projection 4 and the bulging portion 50 is large enough to receive the entire top 42. A recessed engagement portion 54 having a large diameter portion 53 which is a recessed portion engaged with the projection 4 and has a bottom 52 side protruding in a plane direction from the recessed base 51 in a plane direction.
And a bulging concave portion 5 is formed by continuously forming.

A second configuration is a molded container made of the above-mentioned synthetic resin sheet material. One of the outer peripheral portions 1E and 2E of the container body 1 and the lid 2 is provided with a bulging base 41. Also, the top 42 has a large-diameter portion 43 protruding in one direction in the plane direction, and a bulging projection 4 having a side surface facing the large-diameter portion 43 formed as a substantially vertical wall 44. , A recess engaged with the bulging projection 4,
A bulging recess 5 having a large-diameter portion 53 in which the bottom portion 52 protrudes in one direction in the planar direction, and a side surface facing the large-diameter portion 53 is substantially a vertical wall 55; When the projecting recess 5 and the bulging projection 4 are fitted together,
3, 53 are engaged with each other, and the vertical walls 44, 55 are brought into close contact with each other.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In implementing the present invention having such a configuration, the present invention is not limited to the one in which the bulging projections 4 and the bulging recesses 5 are provided only in a pair, but also the size of the container and the size of the container material. Two or more pairs may be formed in consideration of the wall thickness and the like, and in the first configuration, it is fitted with another fitting protrusion 6 for position control separately from the protrusion 4 and the concave portion 5. The concave portions 7 may be provided, and even in these, not only one pair but also two or more pairs may be formed as necessary. The outer peripheral edges 1E and 2E of the container main body 1 and the lid 2 forming the projections 4 and 6 and the concave portions 5 and 7 are only the outer peripheral edges on the free end side of the container facing the bent portion 3. The present invention is not limited to this, and may be the outer peripheral edge portions on the left and right sides of the container. In this case, it is preferable to form it in a portion away from the bent portion 3 in terms of the lid closing effect.

Further, it goes without saying that the position regulating fitting projection 6 and fitting recess 7 of the present invention may be formed in the second configuration or may be additionally formed.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment of the present invention. FIG. 1 is a perspective view of a container made of a synthetic resin sheet shown as a chicken egg packaging container in an open state. Fig. 3 is a partial perspective view showing a state before the container body and the lid are sealed,
FIG. 4 is a plan view showing an engagement state between the bulging projection and the bulging recess,
3 is an enlarged sectional view taken along line AA of FIG. 3, and FIG. 5 is an enlarged sectional view taken along line BB of FIG.

Thus, the container made of a synthetic resin sheet for packaging eggs shown in FIG. 1 has ten recesses 21 in the same manner as the container body 1 in which two rows of ten egg receiving recesses 11 are formed. Lid 2, a hinge portion 3 for connecting the two bodies 1 and 2 so as to be openable and closable, a bulging projection 4 provided on a free end edge of an outer peripheral edge portion 1E of the container body 1, and an outer portion of the lid 2. A bulging recess 5 is provided at the free edge of the peripheral portion 2E, and is integrally molded from a thin sheet material using vacuum or blow molding means. A small cylindrical fitting projection 6 is formed on the side of the bulging projection 4, and a cylindrical fitting recess 7 is formed on the side of the bulging recess 5. In the drawings, reference numerals 12 and 22 denote partition walls of the concave portions 11 and 21 of the container body and the lid, and reference numerals 13 and 23 denote partition columns.

As shown in FIGS. 4 and 5, both side walls of the bulging projection 4 facing the inner and outer surfaces parallel to the axial direction of the hinge portion 3 extend obliquely outward from the bulging base 41, respectively, and have a top portion. It is formed in a dovetail shape so that the side reaching 42 becomes the large diameter portion 43.

The bulging recess 5 formed at the free edge of the outer peripheral edge 2E of the lid 2 and engaging with the bulging projection 4 of the container body 1 receives the large diameter portion 43 of the bulging projection 4. A large-diameter concave portion 50 in which the bulging projection 4 can move;
Engaging portion 5 that is continuous with the bulging projection 4
It consists of four.

The recess engagement portion 54 of the bulging recess 5 is formed as shown in FIG.
As shown in FIG. 5, inner and outer side walls along the hinge portion 3 of the container extend obliquely outward along the inclined side walls of the bulging projection 4, respectively, and have a bottom 52 Are formed in a dovetail shape so that the side leading to is a large diameter portion 53. Each of the recess engagement portions 54 of the two bulging recesses 5 extending along the longitudinal direction of these free end edges is not limited to one extending from the middle portion of the large-diameter recess 50 as shown in the drawing. It may be formed so as to be displaced from the center line. In this case, one of the recess engagement portions 54 is provided on the side of the recess 50 near the hinge 3, and the other is the hinge 3 of the recess 50.
May be provided on the side farther from the bulging protrusions 4, 4 that engage with these recessed engagement portions 54, 54.

Separately from the bulging projections 4 and the bulging recesses 5, a fitting recess 7 is formed in the lid 2 and a fitting projection 6 is formed in the container body 1. Placed,
After the bulging projections 4 and the bulging recesses 5 of the container body and the lid are engaged with each other, the fitting projections 6 and the fitting recesses 7 are fitted to maintain the sealed state. In this embodiment, the container body 1 is provided with the bulging projections 4 and the fitting protrusions 6, and the lid 2 is provided with the bulging recesses 5 and the fitting recesses 7. The bulging recess 5 and the fitting protrusion 6 may be provided, and the bulging protrusion 4 and the fitting recess 7 may be provided on the lid 2. The combination is not particularly limited.

FIG. 6 shows another embodiment.
In this embodiment, a projection 4 and a recess 5 are provided on the left and right outer peripheral portions of the container. That is, while the bulging recesses 5 and 5 are provided in the left and right side edge portions of the outer peripheral edge portion 1E in the container main body 1 and the fitting projection 6 is provided in the outer peripheral front surface portion, the lid body 2 is provided.
The outer peripheral edge portion 2E has bulging projections 4 and 4 at left and right side edge portions, and a fitting concave portion 7 is provided at the outer peripheral edge front portion. Other points are the same as in the first embodiment.

FIGS. 7 to 9 show the swelling projection 4 with the top 42 as an inclined surface and the bottom 52 of the swelling recess 5 as an inclined surface along the inclined surface of the top 42 of the swelling projection 4. 4 is inclined so that when it is fitted into the large-diameter concave portion 50 of the bulging concave portion 5, it is easy to shift to the concave engaging portion 54 side, so that the reverse movement is prevented and the engagement at the concave engaging portion 54 is further strengthened. It is made to become.

FIGS. 10 to 12 show an embodiment of the second configuration, in which the bulging projection 4 illustrated in FIG.
E is formed to be elongated along the longitudinal direction of the free end edge, and both side walls in the elongated longitudinal direction are vertical walls extending from the bulging base 41 and intersecting at a right angle with the top 42 thereof. A vertical wall 44 extending obliquely outward from the protrusion base 41 so as to have a large diameter portion 43 on the top 42 side, and a rear side wall facing the inclined wall extending substantially perpendicularly from the bulge base 41. There is. The bulging recess 5 is a recess sized to allow the bulging projection 4 to be inserted therein, and is similarly formed in an elongated shape, and both long side walls in the longitudinal direction extend from the recessed base portion 51 and have a bottom portion 52. A vertical wall which intersects at a substantially right angle is formed, and the side wall on the front side of the outer peripheral edge extends obliquely outward from the recessed base portion 51 so that the bottom portion 52 has a large diameter portion 53, and the rear side facing the inclined wall. Is formed as a vertical wall 55 extending substantially perpendicularly from the concave base 51.

The fitting between the bulging projection 4 and the bulging recess 5 is performed by first inserting the inclined wall of the bulging projection 4 in the inclined direction toward the sloping wall side of the bulging recess 5 and then inserting the same. Then, the base of the bulging projection 4 on the side of the vertical wall 44 is pushed toward the bottom 52 along the vertical wall 55 of the bulging recess 5. In this manner, as shown in FIG. 12, the vertical walls 44 and 55 are brought into close contact with each other to prevent the vertical walls 44 and 55 from floating. Reference numerals 6 and 7 in FIG. 10 indicate the fitting projection 6 and the fitting recess 7 shown in the above embodiment, but these projections and recesses may not be provided.

FIG. 13 shows another embodiment.
Two elongated projections 4, 4 are provided along the longitudinal direction of the free end edge portion of the container body 1, and a fitting projection 6 is provided between the projections 4. This bulging projection 4 is shown in FIGS.
Similarly to the bulging projection 4 shown in FIG. 2, only the side wall of the portion facing outward is an inclined wall. Similarly, two bulging recesses 5 of the lid 2 are also formed in a slender shape at positions corresponding to the positions of the bulging protrusions 4. A fitting recess 7 is provided between the two bulging recesses 5. is there. This bulging recess 5 is also shown in FIGS.
In the same manner as described above, only the side wall of the portion facing outward is an inclined wall. In this way, the engagement is made at two places which are deviated to the left and right of each free edge.

Although the embodiments which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to only the structures of the embodiments, and the container is a container made of a synthetic resin sheet other than the egg container. Needless to say, the present invention can be implemented with the above-described constituent features of the present invention, and achieving the object of the present invention and appropriately modifying within the range having the following effects. is there.

[0021]

As is clear from the above description, the first structure of the container made of a synthetic resin sheet according to the present invention is such that one of the outer peripheral portions of the container main body and the lid is provided with a bulge. A protruding projection having a large-diameter portion whose top side protrudes in the plane direction from the protruding base portion, and a recessed portion having a size to receive the entire top portion of the protruding projection; A bulging recess formed by connecting a dent engaging portion having a large-diameter portion whose bottom side protrudes in a planar direction from the dent base in a planar direction with the dent portion engaging with the dent portion. In addition, as a second configuration, one of the outer peripheral edge portions of the container body and the lid has a large-diameter portion in which the top side protrudes in one direction in the planar direction from the bulging base, A bulging projection in which a side surface facing the large diameter portion is substantially a vertical wall. A large-diameter portion that is a concave portion that engages with the bulging projection and that has a bottom side protruding in one direction in a planar direction with respect to the concave base portion, and is opposed to the large-diameter portion. A bulging recess having a substantially vertical side wall is provided, and when the bulging recess and the bulging protrusion are fitted together, the two large-diameter portions engage with each other, and the two vertical walls come into close contact with each other. Since it has a configuration, at the time of sealing, it may be tape-sealed or the like as described above, but at least to prove that it is a sealed product, that is, to prove that it is an unopened product It may be of a degree to which a sealing seal is attached, and when storing a part of the contents after opening, the sealing state is maintained or held by the container itself without any need for sealing members or parts. Can be stored, the lid is bulky and large storage space It is the came to be to expect a remarkable effect that there is not the need for.

[Brief description of the drawings]

FIG. 1 is a perspective view of a container according to a first embodiment in an open state.

FIG. 2 is a perspective view showing a state before the container body and the lid are sealed.

FIG. 3 is a plan view illustrating an engagement state between a bulge and a bulge.

FIG. 4 is an enlarged sectional view taken along line AA of FIG. 3;

FIG. 5 is an enlarged sectional view taken along line BB of FIG. 3;

FIG. 6 is a perspective view of the container of the second embodiment in an open state.

FIG. 7 is a plan view illustrating an engagement state of a bulging projection and a bulging recess in another embodiment.

FIG. 8 is a sectional view taken along the line CC, showing a state in which the bulging protrusion of FIG.

9 is a cross-sectional view taken along the line CC, showing an engagement state of the bulging protrusion of FIG. 7;

FIG. 10 is a perspective view of a portion corresponding to FIG. 2 showing a third embodiment.

FIG. 11 is a plan view showing an engagement state between the bulging protrusion and the bulging recess in FIG. 10;

FIG. 12 is a sectional view taken along line DD of FIG. 11;

FIG. 13 is a perspective view of a portion corresponding to FIG. 2 showing another embodiment of the third embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 container main body 1E outer peripheral edge portion of container main body 2 lid 2E outer peripheral edge portion of lid 3 hinge portion 4 bulging projection 5 bulging concave portion 6 fitting protrusion 7 fitting concave portion 41 bulging base portion 42 top portion 43 large diameter portion 44 Vertical part 50 Recessed part 51 Recessed base 52 Bottom part 53 Large diameter part 54 Recessed engagement part 55 Vertical part

Claims (2)

[Claims] 1. A container body made of a synthetic resin sheet material.
(1) A container in which a lid (2) and a lid (2) are connected and formed so as to be foldable at a bent portion (3), and outer peripheral edge portions (1E) and (2E) of both bodies (1) and (2). ) Is provided with a bulging projection (4) having a large-diameter portion (43) whose top (42) side protrudes in the plane direction from the bulging base (41), and one of the bulging protrusions is provided on the other. Protrusion
(4) a concave portion (50) sized to receive the entire top portion (42), and a concave portion to be engaged with the bulging projection (4), wherein the bottom portion (52) is larger than the concave base portion (51). A) a synthetic resin sheet container in which a bulging concave portion (5) is formed by continuously forming a concave engaging portion (54) having a large-diameter portion (53) with its side protruding in a plane direction. 2. A container body made of a synthetic resin sheet material.
(1) A container in which a lid (2) and a lid (2) are connected and formed so as to be foldable at a bent portion (3), and outer peripheral edge portions (1E) and (2E) of both bodies (1) and (2). ) Has a large-diameter portion (43) in which the top (42) side protrudes in one direction in the planar direction from the bulging base (41), and a side surface facing the large-diameter portion (43). Is provided with a bulging projection (4) which is a substantially vertical wall (44), and the other of the bulging projection (4) and the concave base (5) is engaged with the bulging projection (4).
1) has a large-diameter portion (53) in which the bottom (52) side protrudes in one direction in the planar direction, and a side surface facing the large-diameter portion (53) is a substantially vertical wall (55). When the bulging recess (5) and the bulging protrusion (4) are fitted, the large-diameter portions (43) and (53) engage with each other, A container made of a synthetic resin sheet having a structure in which the vertical walls (44) and (55) are in close contact with each other.