JP2014234235A - Foam box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam box which enables a lid member to be easily attached while maintaining retention capacity of a storage object during shipping and transportation.SOLUTION: A foam box 1 comprises: a container body 2 for storing a storage object such as asparagus 100; and a lid member 3 etc. which is attached to an opening part provided at the container body 2. In a wall part 31 of the lid member 3, a contact part 33 which contacts with the asparagus 100, an elastic part 34 which biases the contact part 33 to the inner side, and a pressure adjustment hole 62 which adjusts a pressure of the storage space are formed. The pressure adjustment hole 62 discharges air in the storage space to the exterior of the box to inhibit pressure rise in the storage space and thereby reduces a force required for attachment of the lid member 3 when the lid member 3 is attached to the opening part.

Description

  The present invention relates to a foam box.

  Conventionally, various investigations have been made on foaming boxes used for containing asparagus and the like. For example, Patent Document 1 discloses a foaming box that holds a stored item by an abutting portion and an elastic portion formed on a lid member.

Japanese Patent No. 4558101

  In this type of foam box, when attaching the lid member to the container body, in addition to the force for compressing the air stored in the container body, the force for elastically deforming the elastic part and the thin part are broken. The power to do is needed. That is, as compared with a normal foam box, an extra force for elastically deforming the elastic portion and a force for breaking the thin-walled portion are required. Therefore, depending on the elasticity of the contents and the capacity, the pressing force may be insufficient by simply pressing the central part inward, and it is necessary to sequentially press the end of the lid member in addition to the central part. May occur.

  The present invention has been made to solve the above-described problems, and provides a foaming box that can easily attach a lid member to a container body while maintaining the retainability of stored items during shipping and transportation. For the purpose.

  In order to achieve the above object, a foaming box according to the present invention is a foaming box comprising a container main body for storing an article and a lid member attached to an opening provided in the container main body. Alternatively, the lid member protrudes inward from the inner surface of the wall portion and is integrally formed of the same material as the wall portion, and a contact portion that comes into contact with the container, and the contact portion contacts the container And an elastic portion that elastically deforms and urges the abutting portion inward, and a pressure adjustment hole that adjusts the pressure of the accommodation space when the lid member is attached to the opening.

  In this invention, it is preferable that the pressure adjusting hole can communicate with the outside of the foaming box and the accommodation space after the mounting of the lid member is completed.

  In this invention, it is preferable that the pressure adjusting hole has a projecting portion projecting inward from the side wall thereof.

  In the present invention, it is preferable that the pressure adjusting hole has a protrusion that reflects the air that has flowed into the inlet.

  In this invention, the wall part and the contact part are integrally formed through the elastic part and a thin part thinner than the elastic part. It is preferable that when the contact portion is pressed outward, the thin-walled portion is broken and the contact portion can be moved outward.

  In this invention, it is preferable that the contact portion, the elastic portion, and the pressure adjusting hole are formed in the lid member.

  According to the foaming box of the present invention, when the lid member is attached to the opening, the pressure adjusting hole releases the air in the storage space to the outside of the box to adjust the pressure of the storage space, which is suitable for holding the stored items. It is possible to reduce the force required to mount the lid member while maintaining the elastic force of the elastic portion to a certain extent.

  Moreover, according to the configuration in which the pressure adjustment hole communicates the outside of the foam box and the housing space after the cover member is completely attached, the humidity in the housing space can be maintained equal to the humidity outside the foam box. Condensation of the contents can be prevented.

  Moreover, according to the structure which has the protrusion part which protrudes inward from the side wall of a pressure adjustment hole, when loading a foaming box on the loading platform etc. of a truck, it can prevent that the temperature in accommodation space falls. Moreover, intrusion of rainwater or the like can be prevented.

  Moreover, according to the structure which has the processus | protrusion which reflects the air which flowed in into the pressure adjustment hole at an inlet, the air volume which reflects inflowed air and enters from external air can be reduced.

  Further, according to the configuration in which the abutting portion is pressed outward by the container when packing the container, the thin portion is broken and the abutting portion can be moved outward. By being broken, the contact portion can move outward and the elastic portion can function. Moreover, since the thin part after a fracture | rupture remains in a wall part and a contact part, even if it is in the state which the elastic part deform | transformed, the airtightness inside a container is securable.

  Moreover, according to the structure by which the contact part, the elastic part, and the pressure adjustment hole are formed in the cover member, the said foaming box can be implemented, using the conventional container main body. Moreover, since the thin part formed in this cover member is fractured | attached by mounting | wearing with a cover member, and an elastic part can be functioned, handling of a foaming box becomes easy.

The perspective view of the foaming box by a 1st embodiment of the present invention. Sectional drawing which shows the foaming box of the state used for accommodation of asparagus. The perspective view which shows the structure of a cover member from the outer surface side. The cross-sectional perspective view which shows the structure of a cover member. (A) is sectional drawing which expands and shows the front-end | tip vicinity of the contact part of the cover member before packing, (b) is the same sectional view after packing. The perspective view which expands and shows the pressure adjustment hole currently formed in the cover member. The perspective view which expands and shows the modification of a pressure adjustment hole. The perspective view which expands and shows another modification of a pressure adjustment hole. The perspective view which expands and shows another modification of a pressure adjustment hole. The perspective view which expands and shows the modification which provided the spreading | diffusion protrusion on the pressure adjustment hole shown in FIG. The top view of the modification. FIG. 12 is a sectional view taken along line AA in FIG. 11. The perspective view of the foaming box by 2nd Embodiment of this invention. Sectional drawing of the foaming box by 2nd Embodiment of the state used for accommodation of asparagus.

(First embodiment)
A foam box according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of a foam box. FIG. 2 shows the foam box in a state used for containing asparagus. The foaming box 1 includes a container main body 2 that stores an asparagus 100 or the like, a lid member 3 that is attached to an opening provided in the container main body 2, and the like. A slope 21 is formed on the inner surface of the bottom wall and the side wall of the container body 2 so as to correspond to the shape of the asparagus 100 having a narrow tip as required. In addition, a fitting convex portion 22 that fits the lid member 3 is provided in the opening of the container body 2. The fitting convex portion 22 is formed over the entire circumference or in part along the circumferential direction of the opening.

  3 to 4 show the structure of the lid member 3. The lid member 3 is integrally formed of the same material as that of the wall portion 31, and an inclined surface 32 is formed on the wall portion 31 of the lid member 3 so as to protrude inward from the inner surface. The inclined surface 32 is formed with a contact portion 33 that contacts the asparagus 100 and an elastic portion 34 that biases the contact portion 33 inward. The contact portion 33 protrudes inward from the inner surface of the inclined surface 32 and is continuously formed integrally with the elastic portion 34. The elastic part 34 is formed on the base end side of the contact part 33, and when the contact part 33 comes into contact with the asparagus 100, the elastic part 34 is elastically deformed into a leaf spring shape and biases the contact part 33 inward. . The urging force of the elastic portion 34 can be appropriately set according to the thickness dimension of the elastic portion 34. A fitting concave portion 61 corresponding to the fitting convex portion 22 of the container body 2 is provided on the peripheral edge portion of the wall portion 31 of the lid member 3. The fitting recess 61 is formed over the entire circumference or in part along the circumferential direction of the peripheral edge of the wall 31. Moreover, you may provide the recessed part for adjusting urging | biasing force on the outer side of the elastic part 34 as needed. This recess will be described in detail in the second embodiment.

  The slope 32 and the contact portion 33 of the wall portion 31 are integrally formed via a thin portion 35 (see FIGS. 4 and 5A) that is thinner than the elastic portion 34. The thin portion 35 is formed, for example, by providing a slight gap between a female mold and a male mold for molding the lid member 3. When the asparagus 100 is packed, that is, when the asparagus 100 is accommodated in the container body 2 and the lid member 3 is attached to the container body 2, the contact portion 33 is pressed outward by the asparagus 100, The thin portion 35 is set to a thickness that can be broken. When the thin portion 35 is broken, the contact portion 33 can be moved outward. As the contact portion 33 moves outward, the elastic portion 34 is deformed and biases the contact portion 33 at the tip inward, that is, in the direction of the asparagus 100. Thereby, the contact state of the contact part 33 and the asparagus 100 is maintained. Moreover, when the contact part 33 moves outward, the edge 33a of the contact part 33 contacts the edge 32a of the slope 32, and the airtightness of the container is ensured. The thin portions 35 located at both ends of the contact portion 33 are formed by slits 36 formed on the outer surface of the lid member 3. The slit 36 is formed by a protrusion provided on the female mold. Instead of the slit 36, a slit may be formed on the inner surface of the lid member 3 by a protrusion provided in the male mold.

  FIG. 5 shows the periphery of the tip of the contact portion 33 in an enlarged manner. On the end edge 33a of the contact portion 33, a convex portion 33b is formed along the end edge 33a. A groove-like recess 32 b corresponding to the protrusion 33 b is formed at the edge 32 a of the slope 32. The protruding dimension of the convex part 33b is set to be equal to or slightly larger than the depth dimension of the concave part 32b so that the convex part 33b and the concave part 32b can be fitted. FIG. 5A shows the periphery of the tip of the contact portion 33 before the lid member 3 is attached to the container body 2. Before the cover member 3 is mounted, the inclined surface 32 and the contact portion 33 of the wall portion 31 are integrally formed via the thin portion 35. As already described, when the lid member 3 is attached to the container main body 2 in which the asparagus 100 is accommodated, the contact portion 33 is pressed outward by the asparagus 100. As a result, the thin portion 35 is broken and disappears as shown in FIG. 5B, the contact portion 33 and the inclined surface 32 are separated around the tip of the contact portion 33, and the contact portion 33 is outward. The protrusion 33b is fitted into the recess 32b. Thereby, the airtightness of the container is further ensured. In addition, the recessed part 32b is formed in the wide shape in the moving direction of the convex part 33b so that the movement of the convex part 33b may not be inhibited. Further, a convex portion may be formed on the end edge 32 a of the inclined surface 32, and a concave portion may be formed on the end edge 33 a of the contact portion 33.

  The convex portion 33 b is continuously formed linearly in the width direction of the lid member 3 along the edge 33 a of the contact portion 33. Similarly, the concave portion 32 b is formed continuously in a straight line in the width direction of the lid member 3 along the end edge 32 a of the wall portion 31 facing the end edge 33 a of the contact portion 33. When the lid member 3 is attached to the container body 2 containing the asparagus 100, the central portion 39 in the vicinity of the edge of the wall 31 shown by hatching in FIG. 1 may be pressed inward as indicated by an arrow. . When the central portion 39 is pressed inward, the wall portion 31 is bent and the concave portion 32b formed in a straight line is bent inward. On the other hand, since the contact part 33 and the asparagus 100 are in contact with each other with the same pressure distribution in the width direction of the lid member 3, the shape of the convex part 33 b is kept linear in the width direction of the lid member 3. Has been. Accordingly, the convex portion 33b and the concave portion 32b are sequentially fitted from the center portion to both ends, and as a result, the convex portion 33b gets over the corner of the inclined surface 32 (see FIG. 5) and fits with the concave portion 32b. Therefore, the force required for this is reduced, and the lid member 30 can be easily mounted.

  As already described, in the foaming box as shown in the conventional example, when the lid member 3 represented in the present embodiment is attached to the container body 2, the air accommodated in the container body 2 is compressed. In addition to the force for this purpose, a force for elastically deforming the elastic portion 34 and a force for breaking the thin portion 35 are required. That is, compared with a normal foaming box, the force for elastically deforming the elastic part 34 and the force for breaking the thin-walled part 35 are required. Therefore, depending on the elasticity of the accommodation and the amount of accommodation, the pressing force may be insufficient just by pressing the central portion 39 inward, and the end portions of the lid member 3 are sequentially placed in addition to the central portion 39. It may be necessary to press, which contributes to a reduction in work efficiency.

  Therefore, in the foam box 1 of the present embodiment, the pressure adjustment hole 62 for adjusting the pressure of the accommodation space is provided in the lid member 3, so that the pressure of the accommodation space where the pressure increases when the lid member 3 is attached to the opening. Air is released to the outside of the foam box 1 to reduce the force required to attach the lid member 3. As shown in FIG. 2, the pressure adjusting hole 62 is formed at the upper end portion of the foaming box 1 when the foaming box 1 is erected in order to hold the asparagus 100 in an upright posture. In particular, in the present embodiment, the pressure adjustment holes 62 are disposed in the vicinity of the two upper end corners of the lid member 3.

  FIG. 6 shows an enlarged view of the vicinity of one corner from the back side in the lid member 3 provided with the pressure adjusting hole 62. The pressure adjustment hole 62 is formed so that the outside of the foam box 1 and the accommodation space can communicate with each other after the attachment of the lid member 3 to the container body 2 is completed. That is, the pressure adjustment hole 62 is fitted with a pair of first pressure adjustment holes 62a formed in the inner wall 61a of the fitting recess 61, and a second pressure adjustment hole 62b formed in the top wall 61b of the fitting recess 61. A third pressure adjusting hole 62c and a fourth pressure adjusting hole 62d formed in the outer wall 61c of the combined recess 61 are configured.

  The pair of first pressure adjustment holes 62a is formed in a semicircular shape with a cross section recessed in the vicinity of a portion where the pair of inner walls 61a intersect. One end of the first pressure adjustment hole 62a communicates with the accommodation space of the container body 2, and the other end communicates with the second pressure adjustment hole 62b. The second pressure adjustment hole 62b extends from one first pressure adjustment hole 62a to the other third pressure adjustment hole 62c so that the cross section is rectangular and the lid member 3 extends from the inner top surface of the top wall 61b of the fitting recess 61. Are recessed in the front direction (downward in FIG. 6). The second pressure adjustment hole 62b communicates with a pair of the first pressure adjustment hole 62a and the third pressure adjustment hole 62c.

  The third pressure adjustment hole 62c is formed in a semicircular shape with a cross section recessed at a portion where the pair of outer walls 61c intersect. The third pressure adjustment hole 62c communicates with the second pressure adjustment hole 62b and the fourth pressure adjustment hole 62d. The fourth pressure adjusting hole 62d is an inner top surface (upper surface in FIG. 6) of the outer wall 61c, and is formed in a rectangular shape in cross section at a portion where the outer wall 61c intersects. The fourth pressure adjustment hole 62d communicates with the third pressure adjustment hole 62c and the outside of the foam box 1.

  As described above, according to the foaming box 1 of the present embodiment, when the lid member 3 is attached to the opening of the container body 2, the pressure adjustment holes 62 disposed at two locations are the air in the housing space. Since the pressure in the accommodation space is adjusted by discharging the outside to the outside of the box, the force required for mounting the lid member 3 can be reduced while maintaining the elastic force of the elastic portion 34 to an extent suitable for holding the contents. Thereby, it becomes possible to attach the lid member 3 to the container main body 2 only by pressing the central portion 39 of the lid member 3 toward the container main body 2 side, and the efficiency of the packing work is improved.

  Further, after the mounting of the lid member 3 is completed, the pressure adjusting hole 62 communicates the outside of the foaming box 1 and the housing space, so that the water vapor in the housing space is discharged to the outside of the foaming box 1. Thereby, the humidity in the accommodation space can be maintained equal to the humidity outside the foaming box 1, and dew condensation of the contents can be prevented. Further, in the present embodiment, when the foam box 1 is erected, the pressure adjustment hole 62 is formed at the upper end of the foam box 1, so that water vapor that is lighter than air and accumulates in the upper part of the accommodation space is efficiently discharged. It becomes possible to do.

  Moreover, since the contact part 33, the elastic part 34, and the pressure adjustment hole 62 are formed in the lid member 3, the foaming box 1 can be implemented while using the conventional container body 2. Therefore, the cost required to introduce the foam box 1 can be reduced. Moreover, since the thin part 35 currently formed in the cover member 3 is fractured | ruptured by mounting | wearing with the cover member 3, and the elastic part 34 can be functioned, the handling of the foaming box 1 becomes easy. According to the configuration in which the thin-walled portion is broken and the contact portion is movable outward, the thin-walled portion is broken at the time of packaging so that the contact portion can be moved outward and the elastic portion can function. State. Moreover, since the remains of the thin-walled portion after the breakage remain on the wall portion and the contact portion, the airtightness inside the container can be ensured even when the elastic portion is deformed.

  In addition, when shipping and transporting the asparagus 100, it is necessary to load the foam box 1 with the temperature in the storage space sufficiently lowered after the asparagus 100 is stored on a truck bed or the like. When the foam box 1 having the pressure adjustment hole 62 is used, air outside the foam box 1 may flow into the accommodation space from any pressure adjustment hole 62 due to the influence of wind or the like depending on the environment of the work place. . Since the air outside the foaming box 1 is hotter than the air in the housing space of the foaming box 1 at the time of shipment, the temperature of the asparagus 100 rises when such external air flows excessively into the housing space. However, the freshness of the asparagus 100 may be slightly affected. Therefore, the work of loading the foam box 1 onto the truck bed or the like needs to be performed quickly.

  In the present embodiment, the pressure adjusting hole 62 is not simply provided in the lid member 3, but the pressure adjusting hole 62 is replaced by the first pressure adjusting hole 62a, the second pressure adjusting hole 62b, the third pressure adjusting hole 62c, and the fourth pressure adjusting hole 62c. Since it is configured by the pressure adjusting hole 62d and is configured to change the moving direction of the gas at each communication point, the speed at which the air outside the foaming box 1 flows into the accommodation space can be suppressed. . Thereby, an operator's burden at the time of loading the foaming box 1 on a truck bed etc. can be reduced. The water vapor in the accommodation space gradually diffuses over the outside of the foam box 1 during transportation. Therefore, the above-described configuration that changes the gas moving direction at a plurality of positions of the pressure adjusting hole 62 does not substantially affect the discharge of water vapor.

  Further, when the abutting portion 33 comes into contact with the container, the elastic portion 34 is elastically deformed according to the shape of the container and urges the abutting portion 33 inward, so There is no large gap between objects. Thereby, even if it is a case where the foaming box 1 is set in the standing posture at the time of shipment and transportation, the contents can be sufficiently held. For example, when the foam box 1 is used to contain the asparagus 100, no gap is generated near the tip of the asparagus 100 regardless of the degree of growth of the asparagus 100, and asparagus is also used during shipping and transportation. The vicinity of the tip portion of 100 can be sufficiently retained.

  Moreover, since the wall part 31 and the contact part 33 are integrally formed through the thin part 35, the contact part 33 can be formed easily. For example, when the foam box is molded with a mold, the thin-walled portion 35 is formed by a resin that flows into a minute gap generated on the mating surface of the female mold and the male mold, and extends from the wall portion 31 to the contact portion 33. Can be formed continuously. Further, when the thin portion 35 is broken at the time of packing, the abutting portion 33 can be moved outward, and the elastic portion 34 can function. Further, since the thin-walled portion 35 after the breakage remains on the wall portion 31 and the contact portion 33, the airtightness inside the container can be ensured even when the elastic portion 34 is deformed. Moreover, the airtightness inside a container can be improved by fitting with the convex part 33b and the recessed part 32b. Since the contact portion 33 is formed so as to protrude further inward from the inclined surface 32, the contact portion 33 can be positioned more inward. Thereby, the design freedom degree of the contact part 33 can be raised according to the shape of things, such as asparagus 100 with a thin front-end | tip. By forming the contact portion 33, the elastic portion 34, etc. on the lid member 3, it is possible to implement a foam box that can sufficiently hold the contents during shipment and transportation while using the conventional container body. .

(Modification)
FIG. 7 shows a pressure adjustment hole 62 </ b> A that is a modification of the pressure adjustment hole 62. The pressure adjustment hole 62A shown in FIG. 7A differs from the pressure adjustment hole 62 shown in FIG. 6 in that the fourth pressure adjustment hole 62d has a pair of protrusions 63. The protrusions 63 are arranged to face each other and protrude inward from the side wall of the fourth pressure adjustment hole 62d. The shape and number of the protrusions 63 are not particularly limited.

  According to this modification, the air flowing into the accommodation space from the outside of the foaming box 1 is blocked by the protrusion 63 protruding inward from the side wall of the fourth pressure adjustment hole 62d. Therefore, the speed at which the air outside the foaming box 1 flows into the accommodation space can be suppressed, and when the foaming box is loaded on the truck bed or the like, the temperature in the accommodation space can be prevented from rapidly decreasing. Moreover, intrusion of rainwater or the like can be prevented. Thereby, an operator's burden at the time of loading the foaming box 1 on a truck bed etc. can be reduced.

  Further, in the present modification, the protrusion 63 is provided in the fourth pressure adjustment hole 62d that is in the vicinity of the inlet when air flows into the accommodation space from the outside of the foam box 1 through the pressure adjustment hole 62. The air flowing from the outside of the foam box 1 is dammed upstream of the pressure adjusting hole 62, and the air can be effectively suppressed from flowing into the accommodation space.

  Further, the arrangement of the protrusions 63 is not particularly limited. For example, in the modification shown in FIG. 7B, the pair of projecting portions 64 are arranged so as to be shifted from each other in the extending direction of the fourth pressure adjusting hole 62d. In this modification, since the moving direction of the air flowing from the outside of the foam box 1 is changed, it is possible to effectively suppress the air from flowing into the accommodation space. In this case, a plurality of fitting protrusions 22 of the container body 2 (the inner wall 61a of the lid member 3 before the lid member 3 is attached to the container body 2) cannot be seen from the opening end of the fourth pressure adjustment hole 62d. By causing the protrusion 64 to protrude largely inward of the fourth pressure adjustment hole 62d, the air blocking function by the protrusion 63 can be enhanced.

  FIG. 8 shows a pressure adjustment hole 62 </ b> B that is another modification of the pressure adjustment hole 62. In the pressure adjustment hole 62B shown in FIG. 8, the shape of the fourth pressure adjustment hole 62e is different from that of the pressure adjustment hole 62 shown in FIG. That is, the fourth pressure adjustment hole 62 e of the pressure adjustment hole 62 B is formed so that its cross-sectional area becomes smaller as it approaches the outer edge of the lid member 3. In this modification, the vicinity of the inlet (the opening of the fourth pressure adjustment hole 62e at the outer edge of the lid member 3) when air flows into the accommodation space from the outside of the foam box 1 through the pressure adjustment hole 62B. Since the cross-sectional area is set small, it is possible to effectively suppress air from flowing into the housing space from the outside of the foam box 1.

  FIG. 9 shows a pressure adjustment hole 62 </ b> C that is still another modification of the pressure adjustment hole 62. In the pressure adjustment hole 62C shown in FIG. 9, the shape of the fourth pressure adjustment hole 62f is different from that of the pressure adjustment hole 62 shown in FIG. That is, the fourth pressure adjustment hole 62f is formed to be bent in a crank shape in a plan view from one end on the third pressure adjustment hole 62c side to the other end on the outer side of the foam box 1. In this modification, since the moving direction of the air flowing from the outside of the foam box 1 is changed, it is possible to effectively suppress the air from flowing into the accommodation space. In this case, the fitting convex portion 22 of the container body 2 (the inner wall 61a of the lid member 3 before the lid member 3 is attached to the container body 2) is viewed from the opening end of the fourth pressure adjustment hole 62f at an angle at which the fourth projection is not visible. By bending the pressure adjusting hole 62f, the function of blocking air by the fourth pressure adjusting hole 62f can be enhanced. Note that also in the pressure adjustment hole 62C, the cross-sectional area near the inlet (the opening of the fourth pressure adjustment hole 62f at the outer end edge of the lid member 3) when air flows into the accommodation space from the outside of the foaming box 1 is reduced. It may be set.

  10, FIG. 11 and FIG. 12 show a modification in which a diffusion protrusion (protrusion) 62g is provided in the pressure adjustment hole 62 shown in FIG. The diffusion protrusion 62g is a protrusion for diffusing the air flowing into the container body 2, and is provided on the second pressure adjustment hole 62b. The diffusion protrusions 62g are substantially rectangular and are provided in front of the third pressure adjustment hole 62c and in a recessed position on the second pressure adjustment hole 62b where the pair of outer walls 61c intersect. The diffusion protrusion 62g reflects the air flowing from the third pressure adjustment hole 62c through the fourth pressure adjustment hole 62d to reduce the amount of air entering from the outside air, so that the air does not directly flow into the first pressure adjustment hole 62a. As a windbreak. Thereby, the cold air or the hot air flowing in from the third pressure adjustment hole 62c is dispersed in the second pressure adjustment hole 62b, and the adverse effect on the asparagus 100 stored in the container body 2 is further reduced.

  Further, the diffusion protrusion 62g is provided on the lid member 3 shown in FIG. 6, but the lid member 3 shown as a modified example in FIGS. 7, 8, and 9 also has the position shown in FIG. Can be provided at the same position. By providing the diffusion protrusion 62g, the adverse effect on the asparagus 100 stored in the container body 2 is further reduced as described above. The rectangular parallelepiped diffusion protrusion 62g that is considered to be the most effective in reflecting the inflowing air has been illustrated, but the shape of the diffusion protrusion 62g may be a cube or a cylinder.

(Second Embodiment)
13 and 14 show the configuration of the foam box 10 according to the second embodiment of the present invention. This foaming box 10 is foamed in that the concave handle portions 22 and 38 are formed on the container body 20 and the lid member 30 and the groove-shaped concave portion 37 is formed on the elastic portion 34 of the lid member 30. Different from box 1. Also in the foaming box 10, a pressure adjusting hole 62 and the like equivalent to the foaming box 1 are formed.

  The handle portion 38 is formed on the upper portion of the wall portion 31 of the lid member 30. The handle portion 22 is formed on the side wall of the container body 20 at a position facing the handle portion 38. The handle portions 22 and 38 may be formed to protrude outward from the container body 20 and the lid member 30.

  As described in paragraph (0024), the concave portion 37 is continuously formed in the width direction of the lid member 30 outside the elastic portion 34 in order to adjust the biasing force. That is, by forming the concave portion 37 in the elastic portion 34, the bending rigidity of the elastic portion 34 is reduced. The biasing force of the elastic portion 34 can be optimized by appropriately changing the depth and position of the concave portion 37 according to the softness and mass of the target object accommodated in the foam box 10.

  In addition, when lifting the foam box 10 in which the asparagus 100 is accommodated and the lid member 30 is mounted on the container body 20, the hands 22 and 38 may be lifted upward by placing fingers or the like. At this time, since the stress applied to the handle portion 38 is distributed over the entire wall portion 31, the concave portion 32b is not curved upward, and the fitting state between the convex portion 33b and the concave portion 32b is firmly maintained. Is done. If the handle portion 38 is provided on the upper side of the lid member 30, the curvature of the concave portion 32b can be further suppressed.

  The present invention is not limited to the configuration of the embodiment described above, and at least the contact portion 33 that comes into contact with the container, and the contact portion 33 is elastically deformed when the contact portion 33 comes into contact with the container. It is only necessary to have an elastic portion 34 that is biased in the direction, a pressure adjustment hole 62 that adjusts the pressure of the accommodation space when the lid member 3 is attached to the opening, and the like. Therefore, the contact portion 33, the elastic portion 34, the pressure adjustment hole 62, and the like may be provided on the side wall or the bottom wall of the container body 2. The present invention can be modified in various ways. For example, the foam box 1 is not limited to storing food such as asparagus 100, and can be used for storing a wide range of products. The form of the pressure adjusting hole 62 and the like is not limited to that shown in FIGS. 6 to 10 and can be set as appropriate. Further, the positions and shapes of the concave portion 37 and the handle portion 38 are not limited to those shown in FIGS. 13 and 14 and can be set as appropriate.

  Further, the fitting convex portion 22 of the container body 2 is further provided with a convex portion extending in a rib shape in the circumferential direction, and the fitting concave portion 61 of the lid member 3 is further provided with a groove-like concave portion corresponding to the convex portion, You may improve the fitting property of the joint convex part 22 and the fitting recessed part 61. FIG. In this case, it is assumed that the lid member 3 cannot be properly attached to the container body 2 simply by pressing the central portion 39 of the lid member 3 toward the container body 2. However, in the present invention, the pressure in the accommodation space can be adjusted by the pressure adjusting hole 62 formed in the lid member 3, and the force required for mounting the lid member 3 can be reduced. The lid member 3 can be appropriately attached to the container main body 2 by pressing the vicinity of the edge of the lid member 3 sequentially toward the container main body 2 while pressing toward the container main body 2. In this way, the force required to press the lid member 3 is reduced, and an excessive burden is not imposed on the operator. In addition, the form which forms a rib-shaped convex part in the fitting recessed part 61 of the cover member 3, and a groove-shaped recessed part in the fitting convex part 22 may be sufficient, respectively.

DESCRIPTION OF SYMBOLS 1 Foam box 2 Container body 3 Lid member 31 Wall part 33 Contact part 34 Elastic part 35 Thin part 62, 62A, 62B, 62C Pressure adjustment hole 62g Diffusion protrusion (protrusion)
100 asparagus

Claims (6)

In a foam box provided with a container main body for storing the contents, and a lid member attached to an opening provided in the container main body,
The container main body or the lid member protrudes inward from the inner surface of the wall portion, is integrally formed of the same material as the wall portion, and a contact portion that comes into contact with the container, and the contact portion is the container An elastic portion that elastically deforms when in contact with the inner surface and biases the contact portion inward, and a pressure adjustment hole that adjusts the pressure of the accommodation space when the lid member is attached to the opening. Foam box characterized by.   2. The foaming box according to claim 1, wherein the pressure adjusting hole is capable of communicating between the outside of the foaming box and the accommodation space after the mounting of the lid member is completed.   The foaming box according to claim 1, wherein the pressure adjusting hole has a protruding portion protruding inward from a side wall thereof.   The foaming box according to any one of claims 1 to 3, wherein the pressure adjusting hole has a protrusion that reflects the air that has flowed into the inlet.   The wall portion and the abutting portion are integrally formed through the elastic portion and a thin portion having a thickness smaller than that of the elastic portion, and the abutting portion is formed by the container when the container is packed. The foaming according to any one of claims 1 to 4, wherein when pressed outward, the thin portion is broken, and the contact portion is movable outward. box.   The foaming box according to any one of claims 1 to 5, wherein the contact portion, the elastic portion, and the pressure adjustment hole are formed in the lid member.

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