JP2018062345A - Foamed resin container and method of using same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foamed resin container used for storing and transporting various articles, which effectively suppresses detachment of a lid member from a container body, and a method of using the same.SOLUTION: A foamed resin container 1 is provided with: a container body 2 having an opening at the top thereof; and a lid member 3 detachably attached to the container body 2. The container main body 2 includes a bottom wall 5 and a side wall 6 for defining an accommodation space 4. On an inner peripheral surface 8 of the side wall 6, recessed portions 10 are formed. The lid member 3 is provided with claw members 12 which engage with the recessed portions 10 to prevent upward movement of the lid member 3 when the lid member 3 is attached to the container body 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a foamed resin container used for accommodating and transporting various articles and a method for using the same.

  Conventionally, a foamed resin container has been used to accommodate and transport various articles. For example, FIG. 10A shows a longitudinal sectional view of an example thereof. The foamed resin container 100 includes a container main body 102 having an opening in the upper part, and a lid member 104 attached to the container main body 102. The container main body 102 has a side wall 106, and a rib 108 protruding upward is formed on substantially the entire periphery of the upper end surface of the container main body 102. On the other hand, a concave groove 110 is formed on the lower surface of the lid member 104 so as to extend along the contour shape of the lid and to which the rib 108 can be fitted.

  FIG. 10B shows a longitudinal sectional view of a foamed resin container 200 having a simpler configuration. The foamed resin container 200 includes a container body 202 having an opening at the top and a lid member 204. The container main body 202 has a side wall 206, and its upper end surface is formed flat. On the other hand, on the lower surface of the lid member 204, a rib 208 that fits into the inner peripheral surface 206i of the side wall of the container body is formed.

  In each of the containers 100 and 200, when the lid members 104 and 204 are attached to the container main bodies 102 and 202, after the two members are aligned, the lid members 104 and 204 are pushed into the container main bodies 102 and 202 and fitted. Is done.

Japanese Utility Model Publication No. 5-40181

  As described above, in the conventional foamed resin container, the lid member is essentially attached to the container body by a frictional force. For this reason, for example, when the lid member is blown by a strong wind from the lower side or when an upward force is applied to the lid member for some reason, there is a problem that the lid member is easily detached from the container body.

  The present invention has been devised in view of the above problems, and has as its main object to provide a foamed resin container in which the lid member is unlikely to come off from the container body. Another object of the present invention is to provide a method of use that can effectively prevent so-called “unloading” during transportation using the foamed resin container.

  The present invention is a foamed resin container, including a container main body having an opening in an upper part thereof, and a lid member detachably attached to the container main body, the container main body including a bottom wall for defining an accommodation space, and A concave portion is formed on the inner peripheral surface of the side wall, and the lid member engages with the concave portion when the lid member is attached to the container body, and the lid member A claw member for preventing upward movement is provided.

  In another aspect of the present invention, the recess may be a through hole extending from the inner peripheral surface of the side wall to the outer peripheral surface of the side wall, and the claw member is pressed from the outer peripheral surface side of the side wall. The engagement may be released by receiving pressure.

  In another aspect of the present invention, the lid member may include a plate-like lid body that covers the container body, and the claw member extends from the lid body into the housing space of the container body. And a fitting part that protrudes toward the outer peripheral surface side of the side wall at the lower end side of the hanging part and fits into the recess.

  In another aspect of the present invention, the lid member may have a vertical through hole that vertically penetrates the lid body at a position adjacent to the hanging portion on the outside of the container.

  In another aspect of the present invention, an inclined surface may be formed on the inner peripheral surface of the side wall so as to incline in a direction in which the accommodation space is enlarged from the recess toward the upper end of the side wall.

  In another aspect of the present invention, the fitting portion has a tapered surface in which a protruding amount from the hanging portion gradually decreases downward, and the concave portion is in surface contact with at least a part of the tapered surface. A rubbing surface to be included.

  In another aspect of the present invention, the lid member includes a first claw member and a second claw member as the claw member, the two lid members have the same contour shape, and the claw member side The first claw member and the second claw member may be provided at a position where they do not contact each other when the surfaces are overlapped with each other facing each other.

  In another aspect of the present invention, as a method of using any one of the foamed resin containers described above, a step of housing an article in the housing space of the container body, and a step of mounting the lid member on the container body And a step of covering the through hole with a peelable seal member.

  In another aspect of the present invention, the seal member may be a peel prevention seal whose appearance changes once peeled.

  In the invention according to claim 1 of the present application, a recess is formed on the inner peripheral surface of the side wall of the container body, and the lid member is engaged with the recess when the lid member is attached to the container body. A claw member for preventing the upward movement of the lid member is provided. Therefore, even when the lid member is blown by a strong wind from the lower side or when an upward force is applied to the lid member for some reason, the claw member is engaged with the recess, so the lid member is Hard to come off.

  Further, in the invention according to claim 8 of the present application, the through-hole serving as the operation port for releasing the engagement between the claw member and the concave portion is covered with the seal member, so that the lid member is externally disposed in the container. The operation of removing from the main body can be prevented.

It is a disassembled perspective view of the foamed resin container of this embodiment. It is the sectional view on the AA line of FIG. It is the perspective view which looked at the cover member from the lower surface side. It is the top view which looked at the cover member from the lower surface side. It is the BB sectional drawing of FIG. 1 when two foamed resin containers are piled up and down. It is CC sectional view taken on the line of FIG. 1 in the state with which the cover member was mounted | worn with the container main body. It is an expanded sectional view of a claw member in the state where a lid member was removed from a container main part. As another embodiment of the present invention, an enlarged cross-sectional view of the vicinity of the claw member when the lid is mounted is shown. The bottom view of a lid member is shown as other embodiments of the present invention. (A) And (B) is a fragmentary sectional view of the conventional foamed resin container.

  In the following, several preferred embodiments of the present invention will be described with reference to the drawings, but it is emphasized that these embodiments are merely examples and do not limit the content of the present invention.

  FIG. 1 is an exploded perspective view showing a foamed resin container (hereinafter sometimes simply referred to as “container”) 1 of the present embodiment. As shown in FIG. 1, the container 1 of the present embodiment includes a container main body 2 having an opening in the upper part, and a lid member 3 that is detachably attached to the container main body 2 and closes the opening.

  Both the container body 2 and the lid member 3 are made of a foamed resin material. The foamed resin material is not particularly limited. For example, a polystyrene resin, a polyolefin resin (for example, a polypropylene resin, a polyethylene resin, etc.), or a composite resin containing these is preferably used. Can do.

  The container body 2 includes, for example, a bottom wall 5 and side walls 6 that rise from the periphery of the bottom wall 5. By these bottom wall 5 and side wall 6, the container body 2 provides a substantially rectangular parallelepiped storage space 4 for storing articles. The shape of the storage space 4 and the container body 2 is not limited to the illustrated shape, and can be variously changed according to the application.

  FIG. 2 shows a cross-sectional view taken along line AA of FIG. As shown in FIG. 2, the side wall 6 of the container main body 2 has an inner peripheral surface 8 facing the accommodation space 4 and an outer peripheral surface 9 facing the container outer side. For example, a recess 10 is formed in the inner peripheral surface 8 of the side wall 6. In this embodiment, the recessed part 10 is provided in each of a pair of side wall 6 which opposes so that it may mutually face (refer FIG. 1).

  Further, as shown in FIG. 2, in the present embodiment, the recess 10 is provided at a position spaced a distance A downward from the upper end surface 6 </ b> U of the side wall 6, for example. As a preferred aspect, the recess 10 of the present embodiment is formed as a through hole 11 extending from the inner peripheral surface 8 to the outer peripheral surface 9 of the side wall 6. Alternatively, the recess 10 may be configured as a non-through hole.

  Furthermore, as FIG. 1 shows, the recessed part 10 of this embodiment is formed as the laterally long flat through-hole 11 long in the horizontal direction.

  3 and 4 are a perspective view and a plan view, respectively, of the lid member 3 viewed from the lower surface 3B. As shown in FIGS. 1, 3, and 4, the lid member 3 includes, for example, a plate-like lid body 20 that covers the upper side of the container body 2 and a claw provided on the lower surface 3 </ b> B side of the lid body 20. Member 12. A pair of the claw members 12 are provided so as to face each other corresponding to the recess 10.

  First, the lid body 20 includes an upper surface 3A, a lower surface 3B, a lower rib 23 provided on the lower surface 3B side, and an upper rib 21 provided on the upper surface 3A side.

  FIG. 5 shows a cross-sectional view taken along line BB in FIG. 1 in which two containers 1 are stacked one above the other. As shown in FIG. 5, the lower surface 3 </ b> B of the lid main body 20 is configured such that the lid main body 20 has the above-described portion of the container main body 2 when the lid member 3 is attached to the container main body 2 (hereinafter sometimes simply referred to as “when the lid is attached”). It contacts the upper end surface 6U of the side wall 6.

  Further, the lower rib 23 is provided so as to be fitted to the inner peripheral surface 8 of the side wall 6 of the container body 2 when the lid is mounted. Such a lower rib 23 is preferable in that the lid member 3 is prevented from coming off due to frictional force and the container is airtight when the lid is mounted. From this point of view, as shown in FIGS. 3 and 4, the lower ribs 23 are provided over almost the entire periphery of the lower surface 3 </ b> B of the lid body 20 except for the position where the claw member 12 is formed. Is desirable.

  Moreover, as FIG. 5 shows, the convex part 5a of the bottom wall 5 of the container main body 2 located on the upper side fits in the inner peripheral surface of the upper rib 21 of the lid main body 20 of the container 1 located on the lower side. Include. This helps to prevent misalignment of the two containers 1 with each other. In addition, on the upper surface of the lid main body 20, a plurality of discontinuous portions 22 of the upper rib 21 are provided in order to help exhaust when stacking and fitting the containers 1 and to prevent displacement when a binding band or the like is wound. It is desirable that this is done (see FIG. 1).

  FIG. 6 shows a cross-sectional view taken along the line CC of FIG. 1 in a state where the lid member 3 is mounted on the container main body 2. As shown in FIG. 6, the claw member 12 can engage with the recess 10 on the container body 2 side when the lid is mounted. Thereby, the claw member 12 can prevent the upward movement of the lid member 3. Here, the term “engagement” does not mean a detachment preventing action between the claw member 12 and the recess 10 only by a simple frictional force. The claw member 12 and the recess 10 are physically connected to each other. It means the action of engaging (hooking) and preventing the other from coming off.

  Therefore, the container 1 of the present embodiment has a claw member, for example, even when the lid member 3 of the container 1 is blown by a strong wind from the lower side or when an upward force is applied to the lid member 3 for some reason. Since 12 is physically engaged with the recess 10, the lid member 3 provides an excellent advantage that it is difficult to come off the container body 2.

  FIG. 7 shows an enlarged cross-sectional view of the claw member 12 in a state where the lid member 3 is removed from the container body 2. As shown in FIGS. 6 and 7, the claw member 12 of this embodiment includes, for example, a hanging part 13 and a fitting part 14 formed on the lower end side of the hanging part 13.

  The hanging portion 13 extends downward from the lower surface 3B of the lid body 20. Further, the drooping portion 13 extends downward from a position with a distance B in the horizontal direction from the outer edge 20E of the lid body 20 so as to be inserted into the container body 2. Thereby, the drooping portion 13 is configured to be insertable into the accommodation space 4 of the container body 2 when the lid is mounted. In the present embodiment, the outer peripheral surface 13a of the drooping portion 13 is provided at a position where it substantially contacts the inner peripheral surface 8 of the side wall 6 excluding the recess when the lid is mounted.

  The fitting portion 14 protrudes toward the outer peripheral surface 9 side of the side wall 6 on the lower end side of the hanging portion 13. In a preferred embodiment, the fitting portion 14 has a tapered surface in which the protruding amount P from the hanging portion 13 gradually decreases downward. The tapered surface of the present embodiment includes a first inclined surface 14a on the lower end surface side of the fitting portion 14 and a second inclined surface 14b on the outer peripheral surface side, and further, an arc surface 14c that smoothly connects between these. Is included. Although the first inclined surface 14a and the second inclined surface 14b have different inclination angles, both are tapered surfaces in which the projecting amount P from the hanging portion 13 gradually decreases downward.

  In the present embodiment, when the lid member 3 is attached to the container body 2, the lid member 3 is pushed downward toward the container body 2 from the state of FIG. 7. At this time, the fitting portion 14 comes into contact with the side wall 6 of the container body 2, but the fitting portion 14 is formed along the inner peripheral surface 8 of the side wall 6 by elastically deforming the hanging portion 13 toward the inside of the container. The inside of the storage space 4 of the container body 2 can enter downward. The tapered surfaces (first inclined surface 14a and second inclined surface 14b) of the fitting portion 14 are along the inner peripheral surface 8 of the side wall 6 by promoting elastic deformation toward the inside of the container of the hanging portion 13 and reducing friction. This is particularly preferable in that the fitting portion 14 can be smoothly moved.

  When the lid member 3 is further pushed down, the fitting portion 14 faces the recess 10. At this time, due to the restoring force that the drooping portion 13 that is elastically deformed tries to return to the original shape, the fitting portion 14 is pressed toward the concave portion 10 and can be fitted into the concave portion 10. Thereby, the cover member 3 is engaged with the recess 10 as shown in FIG. That is, when the lid is mounted, the upper surface 14 d of the fitting portion 14 is physically hooked with the upper surface of the recess 10, and the upward movement of the lid member 3 can be prevented.

  In order to make the insertion operation of the fitting portion 14 into the recess 10 smoother, the upper surface 14d of the fitting portion 14 is a slope inclined downward toward the outside of the container, as shown in FIG. It is particularly desirable to be configured.

  On the other hand, the engagement of the claw member 12 is released by receiving a pressing force from the outer peripheral surface 9 side of the side wall 6. Therefore, in the container 1 of the present embodiment, for example, the user presses the fitting part 14 inward from the through hole 11 with a finger to elastically deform the hanging part 13, and the fitting part 14 and the recessed part are deformed. 10, and the lid member 3 can be removed from the container body 2. At this time, the user can easily remove the lid member 3 upward by pushing the second inclined surface 14b of the fitting portion 14 slightly upward with fingers when accessing from the through hole 11. .

  In order to perform a series of engaging and releasing operations between the lid member 3 and the container body 2 more smoothly, as shown in FIG. 7, the lid member 3 is adjacent to the hanging portion 13 on the outside of the container. It is desirable that the vertical through hole 16 penetrating the lid main body 20 vertically is provided at the position. Thereby, the stress of the base portion at the time of elastic deformation toward the inside of the container of the drooping portion 13 is relieved, which helps to improve the durability of the claw member 12 when the container 1 is used repeatedly. The vertical through hole 16 functions effectively as an exhaust port for exhausting the air in the housing space 4 when the lid member 3 is attached to the container body 2 together with the recess 10 which is the through hole 11. Yes.

  Further, for example, when the recess 10 is formed as a non-through hole, when removing the lid member 3 from the container body 2, for example, the user inserts a finger into the vertical through hole 16 and directly attaches the hanging portion 13 directly. It is possible to release the engagement between the claw member 12 and the recess 10 by elastically deforming the inside of the container.

  In a more preferred embodiment, as shown in FIGS. 1 and 2, the inner peripheral surface 8 of the side wall 6 is inclined so as to incline in the direction in which the accommodation space 4 is enlarged from the recess 10 toward the upper end surface 6U of the side wall 6. 18 is formed. The inclined surface 18 is preferably formed with a width slightly larger than the horizontal width W of the claw member 12 (see FIG. 3). Such an inclined surface 18 provides an accurate alignment between the lid member 3 and the container body 2 and a friction reducing action with the fitting portion 14 when the lid member 3 is attached to the container body 2. By gradually increasing the elastic deformation of the drooping portion 13 toward the inside of the container according to the amount by which the lid member 3 is pushed down, an even smoother lid mounting operation can be provided.

FIG. 8 shows an enlarged view of the vicinity of the claw member 12 when the lid is mounted as another embodiment of the present invention. In this embodiment, elements that are the same as those in the previous embodiment are given the same reference numerals, and redundant descriptions are omitted. In this embodiment, the recess 10 includes a rubbing surface 24 that is in surface contact with at least a portion of the tapered surface of the fitting portion. The rubbing surface 24 of the present embodiment is formed so as to be in surface contact with the second inclined surface 14b of the fitting portion 14. This surface contact is provided continuously over the horizontal direction of the claw member 12. Such a rubbing surface 24 can improve the airtightness between the lid member 3 and the container body 2 when the lid is mounted. This is particularly effective for transporting fresh fish and fresh food.

  FIG. 9 further shows a bottom view of the lid member 3 as another embodiment of the present invention. In this embodiment, the lid member 3 includes, as the claw member 12, a first claw member 12A and a second claw member 12B. As is apparent from FIG. 9, the first claw member 12 </ b> A and the second claw member 12 </ b> B are provided so as to be displaced from each other in the direction Y on one side of the lid member 3. More specifically, when the two lid members 3 have the same contour shape and are overlapped with the lower surface 3B on the side where the claw member 12 is provided facing each other, the first claw member 12A and the second claw member 12 The claw members 12B are provided at positions where they do not contact each other. This can reduce the space when a large amount of the lid members 3 are stacked on each other at the time of industrial manufacture of the lid member 3, and is useful for space saving during storage.

  The container 1 of this embodiment described above inserts a finger into the through hole 11 when removing the lid member 3 from the container body 2. Therefore, unintentional removal of the lid member 3 can be prevented by covering the through-hole 11 with some kind of sealing member. That is, as a method of using the container 1 of the present embodiment, a step of storing an article in the storage space 4 of the container main body 2, a step of attaching the lid member 3 to the container main body 2, and a seal capable of peeling the through hole 11 And a step of covering with a member S (shown in FIG. 1). The seal member S may be attached to the container body 2 so as to cover the through hole 11 before the article is accommodated. In particular, the seal member S is desirably a peel prevention seal whose appearance changes once peeled.

  According to such a method of use, since the through-hole 11 serving as an operation port to be accessed for releasing the engagement between the claw member 12 and the recess 10 is covered with the seal member S, the lid is opened from the outside. The operation of removing the member 3 from the container body can be prevented. If the sealing member S is peeled off and the lid member is opened, the history can be known from the change in the appearance of the sealing member S. Therefore, according to the method for using the container 1 of the present embodiment, a psychological unloading suppression effect can be given to a malicious user who is involved in the transportation of the container 1.

  As mentioned above, although several embodiment of this invention was described in detail, this invention is not limited to said embodiment, In the range which does not deviate from the summary of this invention, it changes into various aspects. Needless to say, it can be implemented.

DESCRIPTION OF SYMBOLS 1 Foamed resin container 2 Container main body 3 Cover member 3A Upper surface 3B of a cover member Lower surface 4 of a cover member 5 Storage space 5 Bottom wall of a container main body 6 Side wall of a container main body 8 Inner peripheral surface of a side wall 9 Outer peripheral surface of a side wall Recessed part 11 Through hole 12 Claw member 12A 1st claw member 12B 2nd claw member 13 Hanging part 14 Fitting part 14a 1st inclined surface 14b 2nd inclined surface 16 Vertical through-hole 18 Inclined surface 20 Lid body

Claims (9)

A foamed resin container,
A container body having an opening in the upper part, and a lid member detachably attached to the container body,
The container body includes a bottom wall and a side wall for defining a storage space,
A concave portion is formed on the inner peripheral surface of the side wall,
The lid member includes a claw member that engages with the recess to prevent upward movement of the lid member when the lid member is attached to the container body. . The concave portion is a through hole that extends from the inner peripheral surface of the side wall to the outer peripheral surface of the side wall,
The foamed resin container according to claim 1, wherein the engagement is released when the claw member receives a pressing force from the outer peripheral surface side of the side wall. The lid member includes a plate-like lid body that covers the container body,
The claw member includes a hanging portion that extends from the lid body into the housing space of the container body, and a fitting portion that protrudes toward the outer peripheral surface of the side wall at the lower end side of the hanging portion and fits into the recess. The foamed resin container according to claim 2.   The foamed resin container according to claim 3, wherein the lid member has a vertical through hole penetrating the lid body vertically in a position adjacent to the drooping portion on the outside of the container.   The foamed resin according to any one of claims 2 to 4, wherein an inclined surface is formed on the inner peripheral surface of the side wall so as to be inclined from the recess toward the upper end of the side wall in a direction in which the accommodation space is enlarged. container. The fitting portion has a tapered surface in which a protruding amount from the hanging portion gradually decreases toward the lower side,
The foamed resin container according to claim 3 or 4, wherein the recess includes a rubbing surface that is in surface contact with at least a part of the tapered surface. The lid member includes a first claw member and a second claw member as the claw member,
A position where the first claw member and the second claw member do not come into contact with each other when the two lid members have the same contour shape and are overlapped with the surfaces on the claw member side facing each other. The foamed resin container according to claim 2, wherein the foamed resin container is provided in the container. A method of using the foamed resin container according to any one of claims 2 to 7, wherein the article is stored in the storage space of the container body;
Attaching the lid member to the container body;
A method of using the foamed resin container including at least a step of covering the through hole with a peelable seal member.   The method of using a foamed resin container according to claim 8, wherein the seal member is a peel prevention seal whose appearance changes once peeled.

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