JP6122697B2 - Combination container - Google Patents

Description

  The present invention relates to a combination container including a frame member and a container main body accommodated in the frame member.

  A combination container including a frame member and a container main body accommodated in the frame member is known. Among them, as described in Patent Document 1 or 2, a container body made of a molded body of a resin sheet and having a fitting groove on the outer periphery of the opening edge, and an upper edge made of a foamed resin plate material is the above-mentioned of the container body. A combination container composed of a frame material that is separably integrated with the container main body by fitting into the fitting groove is easy to disassemble and assemble, and the container main body and the frame material are stored separately when not in use. This makes it possible to reduce the bulk volume, and because it is easy to separate and collect after use, it is widely used at food stores and the like at convenience stores.

  In the combination container of the above form, when the container main body and the frame material are combined together in a state where the container main body and the frame material are not easily separated, It is highly recommended because it can stably carry out operations such as transporting combination containers. The combination container described in Patent Documents 1 and 2 described above also employs a device for that purpose.

  That is, in the combination container described in Patent Document 1, a bulging portion that protrudes toward the inner wall side is formed in the outer wall of the fitting groove formed in the container body in the circumferential direction, and the presence of the bulging portion Thus, the frictional force between the frame member and the container main body is increased so that separation is difficult.

  In the combination container described in Patent Document 2, a bulging portion that protrudes toward the outer wall side is formed in the inner wall of the fitting groove formed in the container body in the circumferential direction, and the inner surface of the upper edge of the frame member In addition, an engaging recess that can be engaged with the bulging portion is formed in a portion where the bulging portion is located when combined, and the fitting is formed on the outer surface of the upper edge of the frame member. A notch into which the outer wall of the groove fits is formed. Also in this combination container, the bulging part formed on the container main body side and the engagement concave part formed on the frame material side are engaged with each other, thereby preventing both from being easily separated.

Japanese Utility Model Publication No. 58-180118 JP-A-10-77032

  In the combination container described in Patent Document 1, a bulging portion that protrudes toward the inner wall side is formed in the outer wall of the fitting groove formed in the container main body in the circumferential direction, and the frame is formed by the presence of the bulging portion. Although the container body and the frame material are not easily separated by increasing the frictional force between the material and the container body, the bulging amount of the bulging portion is set in order to perform the assembly work stably. As a result, there is a limit, and as a result, there is a limit to the increase in frictional force, so there is still room for improvement from the viewpoint of stability of the posture after assembly.

  In the combination container of patent document 2, the bulging part which protrudes toward the outer wall side formed in the inner wall of the fitting groove of the container body engages the engaging recess formed on the inner surface of the upper edge of the frame member. However, as in the assembly container described in Patent Document 1, in order to stably perform the assembling work, the bulging amount of the bulging portion is naturally limited. As a result, there is a limit to the engagement depth between the bulging amount and the engagement recess, so that there is still room for improvement from the viewpoint of the stability of the posture after assembly. . Moreover, in the combination container of patent document 2, the outer wall which forms a fitting groove is only flat form, and it is easy to deform | transform with external force, and this deformation | transformation may also be a cause which isolate | separates both.

  The present invention aims to eliminate the above-mentioned disadvantages of the conventional combination container, and more specifically, the posture after the combination of the container body and the frame material is made more difficult to separate. It is an object to provide a further improved combination container.

  The combination container according to the present invention is a container body made of a resin sheet molded body and having a fitting groove on the outer periphery of the opening edge, and an upper edge made of a foamed resin plate material is fitted into the fitting groove of the container body. A combination container constituted by a frame material that is detachably integrated with the container main body, wherein the fitting groove of the container main body extends upward from the upper end of the opening edge and extends outward from the upper end thereof. A horizontal wall and an outer wall extending downward from an outer edge of the outer wall, and a first bulging portion that protrudes toward the inner wall is formed on the outer wall in the circumferential direction. A second bulging portion that protrudes outward is formed in the circumferential direction in the vicinity, and the upper edge portion is fitted into the fitting groove of the container body on the outer surface of the upper edge portion of the frame member. In this state, the first bulging portion formed on the container body is engaged. Recessed groove that can is characterized in that it is formed over the entire circumference.

  In the combination container according to the present invention, when the container body is assembled to the frame member, the first bulging portion formed on the outer wall of the container body engages in the recessed groove formed in the frame member, The 2nd bulging part which protrudes in the outer side formed in the vicinity of the opening edge upper end of a container main body will be in the state press-fitted in the inner surface side of the frame material. That is, the container body and the frame material are integrated by two means of engagement between the first bulging portion and the recessed groove and press-fitting the second bulging portion into the frame material, and the assembled state is extremely high. It will be stable. Further, the press-fitting of the second bulging portion into the inside of the frame member results in pushing out the frame member toward the outside, so that the engagement posture between the first bulging portion and the recessed groove is It becomes more stable. Further, the container body has a first bulging portion in the circumferential direction on the outer wall side of the fitting groove, and since it also functions as a reinforcing rib, deformation of the container body is also suppressed. However, the assembly posture is stable.

  In one aspect of the combination container according to the present invention, the first bulging portion is formed over the entire circumference of the outer wall that forms the fitting groove. In this aspect, since the engagement between the container main body and the frame material is formed over the entire circumference of the container main body and the frame material, the assembly posture is further stabilized.

  In one aspect of the combination container according to the present invention, the container body has a polygonal shape in a plan view, and the first bulging portion is formed at a corner portion of the outer wall that forms the fitting groove. And In this aspect, it is possible to prevent the outer wall from being excessively deformed toward the inner wall side as compared with the case where the first bulging portion is formed over the entire circumference, and the container body and the frame material are fitted. As a result, the assembly posture becomes stable.

  In one aspect of the combination container according to the present invention, the container body has a polygonal shape in plan view, and the second bulging portion is formed at a corner portion on the outer periphery of the opening edge of the container body. In this aspect, while high stability is ensured in the assembled state, separating the container main body and the frame material at the time of disposal is also compared with the case where the second bulging portion is formed on the entire circumference. Easy.

  One aspect of the combination container according to the present invention is characterized in that a flange extending outward is formed at the lower end of the outer wall forming the fitting groove over the entire circumference. In this aspect, the flange that extends outward functions as a reinforcing body to prevent unnecessary deformation of the container body, and the flange that extends outward functions as a guide, facilitating assembly of the container body to the frame material. Turn into.

  In this invention, there is no restriction | limiting in the resin sheet which comprises a container main body, Arbitrary resin sheets can be used. Moreover, there is no restriction | limiting also in the foaming resin board | plate material which comprises a frame material, Arbitrary foaming resin board | plate materials can be used. In order to facilitate disposal, it is desirable that the resin sheet and the foamed resin plate are of the same resin type.

  According to the present invention, in a combination container composed of a container main body and a frame material that is detachably integrated with the container main body, the assembled posture is stable and does not easily separate after assembly. A container is obtained.

The perspective view shown in the state which isolate | separated the container main body and frame material which comprise one Embodiment of the combination container by this invention. The perspective view which shows the state by which the container main body and frame material shown in FIG. 1 were assembled | attached integrally. The bottom view (a) and side view (b) for demonstrating the corner part of a container main body. The side view (a) and top view (b) which show in the state which closed the frame material shown in FIG. It is sectional drawing in alignment with the aa line | wire of FIG. 2, (a) shows the cross section of a container main body, (b) shows the cross section of a frame material, (c) has shown the cross section of the state of combining.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The combination container A according to the present invention includes a container body B and a frame material C.

  The container body B is a thermoformed article such as a polystyrene resin sheet, a polypropylene resin sheet, or a polyethylene resin sheet having a thickness of about 0.2 to 0.5 mm, for example. The container part 1 and the opening edge of the container part 1 And a fitting groove 4 integrally formed on the outer periphery. In this example, the container portion 1 has a rectangular shape in plan view, and is composed of a bottom surface 2 and a peripheral wall 3, and the inside is divided into four by a partition wall. The upper edge of the peripheral wall 3 is the outer periphery of the opening edge, and the fitting groove 4 includes an inner wall 5 extending upward from the outer periphery of the opening edge, a horizontal wall 6 extending outward from the upper end of the inner wall 5, and the horizontal The outer wall 7 extends downward from the outer edge of the wall 6. In the lower part of the outer side wall 7, a concave groove that is convex toward the inner side wall 5 is formed as a first bulging portion 8 over the entire circumference. Further, a flange 9 extending outward is formed at the lower end of the outer wall 7 over the entire circumference. The first bulging portion 8 is preferably formed as being continuous over the entire circumference of the outer wall 7, but may be formed intermittently. Although not shown, the first bulging portion 8 may be formed intermittently only at the four corner portions of the outer wall 7, and in this case, the outer wall 7 faces the inner wall 5 side. Excessive deformation can be prevented, the container body B and the frame material C can be easily fitted, and the assembly posture becomes stable, which is more preferable. Further, the flange 9 can be omitted.

  In the vicinity of the upper end of the peripheral wall 3, that is, in the vicinity of the upper end of the opening edge, as shown in FIG. 3, a second bulging portion 10 that protrudes outward is formed. In the illustrated example, the second bulging portion 10 is formed only at the four corner portions of the container main body B, but may be formed over the entire circumference of the peripheral wall 3. The amount of outward protrusion of the second bulging portion 10 may be about 1 to 2 mm. Preferably, the lower end 11 of the second bulging portion 10 is a horizontal surface.

  The frame material C is formed of a foamed plate material 20 such as a polystyrene resin having a thickness of about 3 to 10 mm, for example. The thickness of the foamed plate member 20 is a thickness that fits into the fitting groove portion 4 of the container main body B, and is preferably a thickness that is substantially equal to the width of the horizontal wall 6 in the fitting groove portion 4 of the container main body B. As shown in FIG. 5 (c), the height of the foamed plate material 20 is such that the lower end surface 21 is positioned lower than the bottom surface 2 of the container main body B in a state of being fitted into the fitting groove portion 4. The In the vicinity of the upper end surface 22 of the foamed plate member 20, a recessed groove 23 is formed over the entire circumference in parallel with the upper end surface 22.

  Although not essential, in the illustrated example, the frame member C is configured to be foldable, and the folded position is shown in FIG. 4 and the opened position is shown in FIG. The four side walls 24 of the frame member C are sized so as to be fitted into the fitting groove portions 4 of the container main body B in a posture in which each corner portion is opened at an angle of 90 degrees. , 24 have two 90-degree notches 25 formed in parallel in the vertical direction. Therefore, as shown in FIG. 4, the frame member C can be folded into a flat posture when not in use, and accommodates the container body B by opening each corner portion at an angle of 90 degrees when in use. be able to. In addition, the frame material of this structure is described in above-mentioned patent document 1, and is a well-known thing.

  In the combination container A, the container body B and the frame material C are stored separately when not in use. The container body B is stored in a state where a large number of the container bodies B are stacked. When stacked, the lower end surface 11 of the second bulging portion 10 formed in the container portion 1 of the container body B positioned at the upper position is connected to the horizontal wall 6 in the fitting groove 4 of the container body B positioned at the lower position. By abutting, it is possible to avoid the upper and lower container bodies B from being in a so-called stacking state. Further, since the frame material C is stored in the folded position shown in FIG. 4 as described above, the storage space for the combination container A can be small.

  At the time of use, the container main body B and the frame material C are in the posture shown in FIG. 1, and the container main body B is dropped into the frame material C. FIG. 2 shows a perspective view of the combination container A that has been assembled by dropping, and FIG. 5C shows a cross-sectional view thereof. As shown in FIG. 5C, in the assembled state, the first bulging portion 8 formed on the outer wall 7 of the fitting groove portion 4 of the container body B is a recessed groove formed on the outer surface of the frame member C. 23, the second bulging portion 10 formed in the container portion 1 of the container main body B is partially in the inner surface of the frame member C, and the frame member. C is pushed outward.

  For this purpose, the container main body B and the frame material C are integrated by two means of engagement between the first bulging portion 8 and the recessed groove 23 and press-fitting of the second bulging portion 10 into the frame material C. The assembled state becomes extremely stable. Furthermore, by press-fitting the second bulging portion 10 into the inside of the frame material C, the frame material C is pushed outward, and as a result, the first bulging portion 10 and the recessed groove 23 The engagement posture is further stabilized.

  Furthermore, the container main body B has a first bulging portion 8 on the outer wall 7 side of the fitting groove 4 in the circumferential direction, and the first bulging portion 8 also functions as a reinforcing rib. The deformation of the container body B is also suppressed. From this point, the assembly posture is stable. Furthermore, in the illustrated one, a flange 9 extending outward is formed over the entire periphery at the lower end of the outer wall 7 forming the fitting groove 4, and the flange 9 extending outward functions as a reinforcing body. The strength of the container main body B is increased, and the flange 9 spreading outward functions as a guide, so that the assembly work of the container main body B to the frame material C is facilitated.

A ... Combination container,
B ... Container body,
C ... Frame material,
1 ... Container part,
2 ... Bottom,
3 ... the surrounding wall,
4 ... fitting groove,
5 ... inner wall,
6 ... Horizontal wall,
7 ... outer wall,
8 ... 1st bulge part (concave groove which becomes convex toward the inner wall side),
9 ... Flange,
10 ... a second bulging portion that protrudes outward,
20 ... Foam plate material constituting the frame material,
23: recessed groove formed in the frame material,
25 ... 90 degree cutout.

Claims (4)

A container body having a polygonal shape in a plan view made of a molded body of a resin sheet and having a fitting groove on the outer periphery of the opening edge, and an upper edge part made of a foamed resin plate material fitting into the fitting groove of the container body. A combination container composed of a main body and a frame material that is detachably integrated,
The fitting groove of the container body has an inner wall that extends upward from the upper end of the opening edge, a horizontal wall that extends outward from the upper end, and an outer wall that extends downward from the outer edge. A first bulging portion that protrudes toward the inner wall side is formed in the circumferential direction, and is a second bulging portion that protrudes outward only at the corner portion of the outer periphery of the opening edge in the vicinity of the upper end of the opening edge. And the lower end of the second bulging portion is a horizontal surface ,
The outer surface of the upper edge portion of the frame member is engaged with the first bulging portion formed in the container body with the upper edge portion fitted in the fitting groove of the container body. A combination container characterized in that a recessed groove that can be formed is formed in a circumferential direction.   The combination container according to claim 1, wherein the first bulging portion is formed over the entire circumference of the outer wall that forms the fitting groove. The combination container according to claim 1, wherein the first bulging portion is formed at a corner portion of the outer wall that forms the fitting groove. The combination container according to any one of claims 1 to 3 , wherein a flange extending outward is formed over the entire periphery at a lower end of the outer wall forming the fitting groove.

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