JP6595975B2 - Foam box - Google Patents

Description

  The present invention relates to a foaming box that accommodates long fruits and vegetables such as asparagus.

  Conventionally, various investigations have been made on foam boxes used for housing perishable fruits and vegetables such as asparagus. For example, an airtight container is known in which a slope is formed on the inner surface of a bottom wall and a lid member in accordance with the shape of asparagus having a thick root and a thin tip (see, for example, Patent Document 1). This hermetic container includes a rectangular container body having an opening on one side and a lid body that closes the opening of the container body in an airtight state. When packing fruits and vegetables such as asparagus, the length of the container body After lying down so that the direction is horizontal and accommodating the fruits and vegetables with the opening facing upward, the opening is closed with a lid. And at the time of conveyance, it is set | placed vertically so that the longitudinal direction of a container main body may become perpendicular | vertical. In this way, by storing and transporting fruits and vegetables in an upright position, the stored fruits and vegetables can be prevented from being damaged by their own weight, and maintain the freshness for a long time in accordance with the physiological function of the plant. Can do.

  However, in the container described in Patent Document 1, there is a gap near the tip of the asparagus depending on the degree of asparagus growth, and when the container is placed vertically, the vicinity of the tip of the asparagus is sufficient. May not be retained and may be damaged. Then, the foaming box which hold | maintains what is contained by the contact part and elastic part which were formed in the cover member is known (for example, refer patent document 2). According to this foaming box, when the abutting portion comes into contact with the asparagus of the contained material, the abutting portion is elastically deformed into a leaf spring shape by the elastic portion and is urged inward. It becomes difficult to produce a gap near the portion, and it is possible to suppress damage of the tip of asparagus during shipping and transportation.

  In the foam box, when the lid member is molded, the wall portion and the contact portion that form the main body of the lid member are integrally formed through a thin-walled portion that is thinner than the elastic portion. The said thin part is fractured | ruptured by pressing an abutting part outward at the time of packing. Thus, the contact portion is connected to the wall portion at the base portion having the elastic portion, while the peripheral portion other than the base portion is separated from the wall portion by the breakage of the thin portion, and is formed on the outer surface of the wall portion. It can be moved outward within.

Utility Model Registration No. 2550309 Japanese Patent No. 4558101

  However, in the above-mentioned foaming box, the peripheral part other than the base part and the concave part formed on the outer surface of the wall part are originally formed integrally through the thin wall part, so the outer dimension and the wall part of the peripheral part of the contact part The inner dimensions of the recesses are almost the same. Therefore, even if they are separated due to the breakage of the thin-walled part, when the peripheral part of the abutting part moves, the edge part of the concave part of the wall part comes into contact with it, so that the asparagus is not damaged. Sufficient cushioning may not be obtained.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a foaming box that can obtain cushioning properties for holding the stored items without damaging them during shipping and transportation. .

In order to achieve the above object, 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. Has a recessed portion dug inward from the outer surface of the plate-shaped wall portion, and a contact portion that protrudes inward from the inner surface of the wall portion and contacts the contents, the contact portion being A base part connecting the contact part and the wall part, a thin part connecting the outer edge part of the contact part and the inner edge part of the recess except the base part, and the thin part on the outer surface of the contact part anda groove formed along the inner side of the thin portion is broken is separated from the wall portion except for the base portion becomes movable outwardly in the recess, the groove, the includes a rim transverse grooves formed along the top of the peripheral edge of the contact portion, the contact Shinano inner edge of the outer edge the recess of the contact portion Characterized in providing the elasticity to allow sliding.

  In the foamed box, the contact portion is cut so as to extend inward in the width direction of the contact portion from the outer surface of the contact portion, and elastically deformed when the contact portion contacts an object. It is preferable that an elastic portion that urges the abutting portion inward is provided, and that the groove portion is formed to be deeper than a depth of cut of the elastic portion.

  The said foaming box WHEREIN: It is preferable that the said groove part contains the vertical groove formed along the both-sides edge of the peripheral part of the said contact part.

  In the foam box, the vertical groove is preferably formed to extend upward from the horizontal groove.

  In the foam box, it is preferable that the concave portion has a restricting portion on the upper edge surface thereof to abut against the upper edge of the peripheral portion of the abutting portion to restrict the outward movement of the abutting portion.

  In the foam box, it is preferable that the container body has a convex portion that is formed on an inner surface thereof and restricts the inward movement of the contact portion.

  According to the foam box of the present invention, the groove formed in the peripheral portion of the contact portion gives elasticity necessary for sliding while the edge portion of the contact portion is in contact with the edge portion of the recess. A contact portion having almost the same size as the side edge surface of the concave portion can be appropriately slid within the concave portion, and sufficient cushioning property can be obtained to hold the contents without damage.

(A) is a perspective view which shows the state which isolate | separated the container main body and lid member of the foaming box which concerns on one Embodiment of this invention, (b) shows the state which attached the lid member to the container main body and set it horizontally. A perspective view and (c) are perspective views showing the state where (b) was installed vertically. (A) is a front view of a container main body, (b) is a rear view, (c) is a top view, (d) is a bottom view, and (e) is a side view. (A) is the sectional view on the AA line of Fig.2 (a), (b) is the sectional view on the BB line, (c) is the sectional view on the CC line. (A) is the perspective view which set | placed the front of the cover member upward, (b) is the perspective view which set the back surface upward. (A) is a front view of a lid member, (b) is a rear view, (c) is a top view, (d) is a bottom view, and (e) is a side view. (A) is the DD sectional view taken on the line of FIG.5 (b), (b) is the EE sectional view taken on the line of FIG.5 (a), (c) is the FF sectional view taken on the line. (A) is a cross-sectional view corresponding to FIG. 6 (a) in a state where the thin-walled portion is broken, (b) is a cross-sectional view corresponding to FIG. 6 (b), and (c) is a dashed-dotted line portion of (a). Enlarged view. The enlarged view of the dashed-dotted line part of Fig.5 (a). Sectional drawing which shows the state which attached the cover member to the container main body and set it horizontally. (A) is a perspective view of the back surface of the lid member, (b) is an enlarged view of the H portion of (a), (c) is an enlarged view of the G portion of FIG. 5 (b), and (d) is an enlarged view of (c). II sectional view taken on the line. The perspective view which shows the state which attached the cover member to the container main body and set it horizontally. The figure which shows the modification of the ventilation flow path of a cover member.

  A foam box according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1A to 1C, the foam box 1 includes a container main body 2 that stores a stored material such as asparagus, and a lid member that is attached to an opening 20 provided in the container main body 2. 3. After packing fruit and vegetables such as asparagus, the foaming box 1 is stored in a state in which the contents are laid down with the opening 20 facing upward, as shown in FIGS. The opening 20 is closed by the lid member 3. Moreover, at the time of conveyance, as shown in FIG.1 (c), it is set | placed vertically so that a stored thing may be in the state which stood up and down. In the following description, the direction facing the outer surface of the lid member 3 is the front (see FIG. 1C).

  The container body 2 and the lid member 3 are both substantially rectangular in a front view, and are chamfered so that the four corners are rounded. The container main body 2 and the lid member 3 are molded articles of a foamed synthetic resin. For example, a foaming particle of a thermoplastic resin is filled in a mold, heated, foamed, and integrally molded. The thermoplastic resin is, for example, a styrene resin, or may be a composite resin in which another resin such as an olefin resin is mixed with the styrene resin.

  As shown in FIGS. 2A to 2E and FIGS. 3A to 3C, the container body 2 has a rectangular bottom plate 21 whose one side is longer than the other side (FIGS. 2D and 3). (B)), wall plates 22 and 23 (FIGS. 2E and 2B) standing around the bottom plate 21, and a top plate 24 facing the bottom plate 21 (FIGS. 2C and 3B). c)). The wall plate 22 forms a side surface of the container body 2 and has a rectangular shape in which the vertical side is longer than the horizontal side when in a vertically placed state. In addition, the wall board 22 is a left-right symmetric shape (FIG.2 (e)). On the other hand, the wall board 23 comprises the back surface of the container main body 2 (FIG.2 (b)).

  The opening 20 is formed by a peripheral edge on the side opposite to the wall plate 23 among the four sides of the bottom plate 21, each wall plate 22, and the top plate 24 (see also FIG. 1A). On the periphery of the opening 20, a fitting convex portion 20 a that fits with a fitting concave portion 35 (see FIG. 4B described later) formed in the lid member 3 is formed (FIG. 2C). d)). The fitting convex part 20a is formed so that the inner side protrudes from the outer side at the periphery of the opening part 20 (see also FIG. 1A). A convex edge 20b protruding slightly outward is formed on the outer edge of the fitting convex part 20a (FIG. 2 (d)), and a concave groove 35a (see FIG. 2) formed in the fitting concave part 35 of the lid member 3 is formed. 4 (b)), the hermeticity in the container can be improved.

  On the outer surface of the bottom plate 21 and the top plate 24 on the wall plate 23 side, inwardly recessed handle portions 21a and 24a are respectively provided. The handle portions 21a and 24a are used when the container body 2 is carried in a horizontal state (see FIG. 1A). Moreover, the insertion part 24b used in order to remove the cover member 3 from the container main body 2 at the time of taking out a thing is formed in the outer surface by the side of the opening part 20 of the top plate 24 (FIG.1 (c)). FIG. 2 (c)).

  On the edge of each wall plate 22 on the opening 20 side, there is a concave side portion 22a that fits into a convex side portion 34 (see FIG. 4A described later) projecting in a trapezoidal shape from both side portions of the lid member 3. It is formed (FIGS. 1A and 2E). As shown in FIG. 1C, the foam box 1 has one side surface of the foam box 1 at the time of conveyance, so that the convex side portion 34 of the lid member 3 and the concave side portion 22 a of the container body 2 are provided. Are fitted to each other in a three-dimensional manner so that the lid member 3 is not easily detached from the container main body 2. Moreover, the notch 22b is formed in the edge part on the opposite side to the concave side part 22a of each wall board 22 (FIG. 1 (a), FIG.2 (e)). The notch 22b is used for carrying the container body 2 like the handle portions 21a and 24a.

  The wall plate 23 becomes a bottom plate when placed horizontally during packing of the contents, and an arrow indicating the arrangement direction of the contents is formed on the inner surface. Further, on the inner surface of the wall plate 23, there is formed a container side contact portion 23a that is inclined with respect to the wall plate 23 and protrudes inward to contact with the contents (FIG. 2 (a), FIG. 3 (a)). When the lid member 3 is mounted, the container side abutting portion 23a faces the abutting portion 33 on the lid member 3 side (see FIGS. 4B and 9 described later). The container-side contact portion 23a is formed so that the protruding height increases from the bottom to the top in accordance with the shape of asparagus having a thick root and a thin tip.

  A concave portion 23b is formed on the outer surface of the wall plate 23 to suppress the thickness of the container side contact portion 23a (FIGS. 2B and 3A). Moreover, the recessed part 23c corresponding to the fitting convex part 20a is formed in the peripheral part vicinity of the outer surface of the wall board 23 so that it may be stabilized when only the container main body 2 is piled up (FIG.2 (b)). . In addition, the arrow and the character which show the arrangement direction of a thing are also formed in the outer surface of the wall board 23. FIG.

  On the inner surfaces of the wall plate 22 and the wall plate 23, a plurality of irregularities 22c and 23d are formed in the horizontal direction in the vertically placed state (FIGS. 2A and 3A). Concavities and convexities 22c and 23d prevent laterally-sliding contents from being slid when packing the contents, and also prevent the contents from moving up and down when the foam box 1 is vertically placed during transportation. It is possible to suppress the damage of the contents. In addition, on the inner surface of the wall plate 22, a scale serving as a guide for the load amount of the contents is formed. On the inner surface of the bottom plate 21, lattice-like irregularities 21b are formed (FIG. 3B). The unevenness 21b serves as a slip stopper that suppresses the movement of the contents in the vertical direction during conveyance. Further, the unevenness 21b is high on the opening 20 side and low on the wall plate 23 side. Therefore, even if the contents are slightly inclined toward the wall plate 23 and the lid member 3 is unintentionally removed, the contents can be prevented from jumping out of the container.

  As shown in FIGS. 4A and 4B, the lid member 3 includes a plate-like wall portion 31 constituting the main body, a recess 32 dug inward from the outer surface of the wall portion 31, and the wall portion 31. And an abutting portion 33 that projects inward from the inner surface of the wall portion 31 and abuts against the contents. Similar to the container-side contact portion 23a, the contact portion 33 is formed so that the protruding height increases from the bottom to the top in accordance with the shape of asparagus having a thick root and a thin tip. The recess 32 is also formed so that the digging depth increases from the lower side to the upper side of the lid member 3.

  Further, the lid member 3 has a convex side portion 34 protruding in a trapezoidal shape inward from both side portions of the lid member 3. The convex side portion 34 is fitted to the concave side portion 22a (FIG. 2 (e)) of the container body 2. Of the outer surface of the lid member 3, a concave portion 31 a notched in a shape corresponding to the convex side portion 34 is formed at the edge facing the convex side portion 34 so that a plurality of the lid members 3 can be stably stacked. Has been. Further, on the outer surface of the lid member 3, a handle portion 31b and an arrow or the like indicating the arrangement direction of the contents are formed.

  As described above, the fitting concave portion 35 that fits with the fitting convex portion 20a of the container body 2 is formed on the peripheral edge of the inner surface of the lid member 3 (FIG. 4B). The fitting recess 35 is formed so that the inner side is depressed more than the outer side at the peripheral edge facing the opening 20. In addition, a concave groove 35 a that engages with the convex edge 20 b of the fitting convex portion 20 a is formed on the inner side surface of the fitting concave portion 35.

  As shown in FIGS. 5A to 5E and FIGS. 6A to 6C, the contact portion 33 is formed by removing the base portion 33a that connects the contact portion 33 and the wall portion 31 and the base portion 33a. It has a thin portion 33 b that connects the outer edge portion of the contact portion 33 and the inner edge portion of the recess portion 32, and a groove portion 36 that is formed along the inside of the thin portion 33 b on the outer surface of the contact portion 33. The contact portion 33 has an elastic portion 33c that is formed on the outer surface of the contact portion 33 and elastically deforms to urge the contact portion 33 inward when it comes into contact with an object.

  The base portion 33 a is gently inclined with respect to the wall portion 31, the lower end portion thereof is smoothly connected to the wall portion 31, and both edge portions thereof are connected to the inner edge portion of the recessed portion 32. The thin-walled portion 33 b connects both the side edges and the upper edge of the outer edge portion of the contact portion 33 and the inner edge portion of the concave portion 32 when the lid member 3 is molded. 6A and 6B show a configuration in which the upper edge of the contact portion 33 and the upper inner edge of the recess 32 are connected by a thin portion 33b.

  The recess 32 has a deep slit near the periphery of the contact portion 33, and the contact portion 33 on the inner side protrudes outward from the container and is thick. The elastic portion 33c is a cut formed on the outer surface of the abutting portion 33 that is thick so as to extend in the width direction. In this example, two cuts are formed. Further, the elastic portion 33c is formed so that the opening of the cut increases from the inside toward the outside so that the contact portion 33 can be given a large elasticity.

  The thin portion 33b is easily broken by pushing the contact portion 33 from the inside to the outside when the lid member 3 is attached to the container body 2. As a result, as shown in FIGS. 7A and 7B, the contact portion 33 is separated from the wall portion 31 except for the base portion 33 a and can move outward in the recess 32. Further, as shown in FIG. 7C, a convex portion 33 d is provided on the upper edge of the contact portion 33. On the other hand, the concave portion 32 is formed with a concave restricting portion 32a in which the convex portion 33d of the abutting portion 33 is fitted on the upper edge surface and the outward movement of the abutting portion 33 is regulated by abutting with this. Has been. Thereby, for example, even if the contained object pushes the contact portion 33 outward due to shaking during conveyance, the contact portion 33 is not pushed outward from the recess 32, and the airtightness in the container is kept. Can be secured.

  As shown in FIG. 8, the groove portion 36 includes a vertical groove 36 a formed along both side edges of the peripheral edge portion of the contact portion 33. Even in a conventional foam box, for example, the foam box described in Patent Document 2, a certain degree of slidability between the upper edge portion of the contact portion and the upper edge portion of the concave portion is ensured by the elastic portion. However, the outer dimension of the side edge part of the contact part and the inner dimension of the side edge part of the recess 32 are almost the same, and the slidability between them is not sufficient, and the cushion is sufficient to hold the contents. In some cases, it was not possible to obtain sex. On the other hand, in the foam box 1 of the present embodiment, the longitudinal grooves 36 a formed on both side edges of the peripheral portion of the contact portion 33 are such that the side edge portion of the contact portion 33 contacts the side edge portion of the recess 32. It gives elasticity that allows sliding. Accordingly, when the lid member 3 is formed, it is connected by the thin portion 33b, and the contact portion 33 having almost the same size as the side edge surface of the recess 32 can be appropriately slid within the recess 32 without damaging the contents. Sufficient cushioning can be obtained for holding.

  Further, in the present embodiment, the groove portion 36 includes a lateral groove 36 b formed along the upper edge of the peripheral edge portion of the contact portion 33. The lateral groove 36b provides elasticity necessary for the upper edge of the contact portion 33 to slide while contacting the upper edge of the recess 32. Therefore, the slidability of the contact portion 33 with respect to the concave portion 32 can be improved more effectively than the elastic portion 33c. Moreover, the groove part 36 is formed so that it may become deeper than the cutting depth of the thin part 33b (refer FIG.6 (b)). Thereby, even if the opening area of the groove part 36 is small in the outer surface of the contact part 33, the appropriate elasticity which enables the contact part 33 to slide can be given. Although the groove portion 36 is deeper than the depth of the cut of the thin portion 33b, the groove portion 36 does not penetrate to the inner surface of the contact portion 33, and as shown in FIG. The thickness is given.

  Further, as shown in FIG. 8, in the groove portion 36, the vertical groove 36a is preferably formed to extend upward from the horizontal groove 36b. As described above, the slidability between the upper edge portion of the contact portion 33 and the upper edge portion of the recess portion 32 can be secured to a certain degree by the elastic portion 33c, but the side edge portion of the contact portion 33 and the recess portion 32 can be secured to each other. The slidability between the side edges depends on the longitudinal groove 36a. Therefore, by providing a longer length of the vertical groove 36a, sufficient elasticity that enables the contact portion 33 to slide in the recess 32 can be effectively provided.

  As shown in FIG. 9, the container main body 2 has a convex portion 23 e that is formed on the inner side surface (wall plate 22) and restricts the inward movement of the contact portion 33. The wall plate 22 is provided with a plurality of projections and recesses 23d in the horizontal direction and formed so as to stay inward of the opening 20, and the horizontal end of the projection of the projections and depressions 23d functions as the projection 23e. To do. Of the plurality of concaves and convexes 23d, the upper one is formed so that the protruding height with respect to the wall plate 22 is increased, and the convex part 23e which is the horizontal end thereof has a thickness sufficient to regulate the contact part 33. is doing. By providing the convex portion 23e, for example, even when the abutting portion 33 is pushed inward due to an external factor, the convex portion 23e regulates the inward movement of the abutting portion 33. It is possible to suppress the stored object from being unnecessarily pressed by the contact portion 33.

  As described above, fruit vegetables such as asparagus release ethylene gas and water vapor, and when these gases are accumulated in the container, the freshness of the fruit vegetables may be reduced. Therefore, in the foam box 1 of the present embodiment, a ventilation mechanism is provided so that gas can be released from the inside of the container body 2 to the outside. This ventilation mechanism is a pressure adjustment mechanism that adjusts the pressure in the container by appropriately discharging the air in the container so that the abutment portion 33 can slide while maintaining the airtightness in the container. Also works. Hereinafter, the ventilation mechanism in the foam box 1 of this embodiment will be described with reference to the drawings.

  As shown in FIGS. 10 (a) to 10 (d), the fitting recess 35 of the lid member 3 forms an outer edge 35 b that forms the outer wall of the fitting recess 35 and an inner wall of the fitting recess 35. It has the inner-plate part 35c fitted in the opening part 20 (refer Fig.1 (a)), and the vertical surface 35d which comprises the bottom face of the fitting recessed part 35. FIG. A concave groove 35a that engages with the convex edge 20b of the fitting convex part 20a is formed at a position close to the vertical surface 35d in the outer edge part 35b.

  The fitting recess 35 has ventilation grooves 37a, 37b, and 37c (generally referred to as ventilation grooves 37) that are formed near the corners thereof and communicate with the inside of the container body 2 (see FIG. 9). Further, the outer edge portion 35 b of the fitting recess 35 has an R-shaped surface 3 r with rounded corners on the outer peripheral surface, and has a ventilation hole 38 communicating with the ventilation groove 37. The ventilation mechanism in the foam box 1 of the present embodiment is formed by the ventilation groove 37 and the ventilation hole 38.

  The ventilation groove 37 is formed in the inner plate portion 35c and extends in the mounting direction of the lid member 3, and the second ventilation groove 37b in which the vertical surface 35d is dug outward and communicates with the first ventilation groove 37a. And a third ventilation groove 37c formed in the outer edge portion 35b and communicating with the second ventilation groove 37b.

  The first ventilation grooves 37a are semicircular cutouts, and are provided at two locations near one corner of the inner plate portion 35c. The outer peripheral surface of the inner plate portion 35c is in close contact with the inner edge of the fitting convex portion 20a of the container body 2 except for the first ventilation groove 37a. In the second ventilation groove 37b, the portion corresponding to the corner of the lid member 3 in the vertical surface 35d is dug deeper to the outside of the container than the other portions, and the fitting convex portion 20a of the container body 2 is formed. Among these, a slight gap is formed between the lid member 3 and the peripheral surface facing the front. The vertical surface 35d is also in close contact with the peripheral edge of the fitting convex portion 20a except for the second ventilation groove 37b. The third ventilation groove 37c is a semicircular cutout formed at the corner of the fitting recess 35 in the outer edge 35b. The outer edge portion 35b is also in close contact with the outer edge of the fitting convex portion 20a except for the third ventilation groove 37c.

  The vent hole 38 is vented to the outside at a position close to the vertical side surface 3v of the lid member 3 in the R-shaped surface 3r, and a vent channel 38a formed on the peripheral surface of the outer edge portion 35b facing the opening portion 20. And a mouth 38b.

  As described above, in the foam box 1 of the present embodiment, since the ventilation member 37 and the ventilation hole 38 are provided in the lid member 3, when the lid member 3 is attached to the opening 20 of the container body 2, It is possible to prevent the freshness of the packed fruits and vegetables from being reduced by releasing a gas such as ethylene gas or water vapor. Moreover, since the pressure in a container can be adjusted suitably, the contact part 33 can acquire moderate slidability in order to hold | maintain the stored thing without damaging it. Further, when the lid member 3 is attached to the opening 20 of the container body 2, the air in the container is released to the outside, so that the force required to attach the lid member 3 can be reduced.

  The vent hole 38b is opened at a position close to the vertical side surface 3v of the lid member 3 in the R-shaped surface 3r. That is, since the vent 38b is opened in a substantially horizontal direction, for example, even when ice is covered from the top of the foaming box 1 or when water is poured during transportation, water can be supplied from the vent 38b. Intrusion into the inside can be suppressed. In this embodiment, since the ventilation groove 37 and the ventilation hole 38b are both provided in the lid member 3, it is not necessary to modify the container body 2 itself, so that the shape of the opening is suitable. If so, the conventional container body can be reused, and the occurrence of unnecessary inventory can be suppressed.

  The ventilation channel 38a has a bent portion 38c that is bent upward from the horizontal position of the ventilation port 38b (see FIG. 10C). Therefore, even if water enters from the vent 38b, it is blocked by the bent portion 38c, and water can be prevented from entering the third vent groove 37c from the vent channel 38a.

  Further, as shown in FIG. 11, the vent 38b is provided in the vicinity of a corner formed by the upper surface 3u and the vertical side surface 3v of the lid member 3. In the state where the contents are accommodated, an empty space is created above the inside of the container. Therefore, by providing the vent 38b above the lid member 3, air is smoothly discharged from above the inside of the container via the ventilation groove 37. can do. In addition, at the lower position in the container, there is a possibility that the ventilation groove 37 and the ventilation hole 38b are clogged due to water, dust residue, etc. discharged from the stored items. On the other hand, if the ventilation groove 37 and the ventilation hole 38b are provided above the lid member 3, there is little possibility of clogging, and the air in the container can be discharged continuously.

  Further, the third ventilation groove 37c is provided at one place per corner of the outer edge part 35b, whereas the first ventilation groove 37a is provided at two places near one corner of the inner plate part 35c. Thereby, the inside of a container, the 1st ventilation groove 37a, and the 2nd ventilation groove 37b have high communication nature, and the pressure difference between them becomes small. Therefore, even if the abutting portion 33 is pushed inward, air gradually flows from the inside of the container into the second ventilation groove 37b via the first ventilation groove 37a, and the lid member 3 is prevented from being detached from the container body 2. can do.

  FIG. 10C shows a configuration in which the bent portion 38c has a curved shape. However, the present invention is not limited to this configuration. For example, as shown in FIG. It may be formed in a saw blade shape in which different straight sides are combined.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, the horizontal groove 36b shown in FIG. 8 may not be connected to the vertical groove 36a, and may be provided in the outer surface of the contact portion 33 in the width direction. The longitudinal groove 36a may also be formed in pieces, or may be configured to be able to form a cut afterwards so that the user can change the slidability of the contact portion 33. Good.

DESCRIPTION OF SYMBOLS 1 Foaming box 2 Container main body 20 Opening part 23e Convex part 3 Lid member 31 Wall part 32 Concave part 32a Control part 33 Contact part 33b Thin part 33c Elastic part (cut)
36 Groove part 36a Vertical groove 36b Horizontal groove

Claims (6)

A foam box comprising: a container main body for storing the contents; and a lid member attached to an opening provided in the container main body,
The lid member has a concave portion dug inward from the outer surface of the plate-like wall portion, and an abutting portion that projects inward from the inner surface of the wall portion and comes into contact with an object.
The contact portion includes a base portion that connects the contact portion and the wall portion, a thin wall portion that connects an outer edge portion of the contact portion and an inner edge portion of the recess except for the base portion, and A groove part formed along the inside of the thin part on the outer surface, and the thin part is broken and separated from the wall part except for the base part, and is movable outward in the recess.
The groove portion includes a lateral groove formed along the upper edge of the peripheral edge portion of the contact portion, and provides elasticity that allows the outer edge portion of the contact portion to slide while contacting the inner edge portion of the recess. Foaming box characterized by. The contact portion is cut so as to extend inward from the outer surface of the contact portion in the width direction of the contact portion. It has an elastic part that urges the part inward,
The foaming box according to claim 1, wherein the groove portion is formed to be deeper than a depth of cut of the elastic portion.   3. The foaming box according to claim 1, wherein the groove includes vertical grooves formed along both side edges of a peripheral edge of the contact portion. The foaming box according to any one of claims 1 to 3, wherein the vertical groove is formed to extend upward from the horizontal groove . The said recessed part has the control part which contact | abuts the upper edge of the peripheral part of the said contact part on the upper edge surface, and controls the outward movement of the said contact part. The foaming box according to claim 4 . The said container main body has a convex part which is formed in the inner surface, and controls the movement to the inward of the said contact part, The foaming as described in any one of Claim 1 thru | or 5 characterized by the above-mentioned. box.

Images