JP6656849B2 - Container with lid - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a container with a lid used for carrying articles and the like.

  2. Description of the Related Art Conventionally, there has been known a container with a lid that includes a box-shaped container main body that opens upward and a lid member that closes an opening of the container main body, and the container main body and the lid member are formed of a foamed resin. In addition, there is a technology in which the lid member can be placed upside down on the container body so as to be able to cover the container body, so that the mode of the lidded container can be changed, and the function of the lidded container can be increased (for example, there is a technique of increasing the function of the lidded container) , Patent Document 1 etc.).

JP 2002-120877 A

  By the way, a container with a lid made of foamed resin protrudes downward from a portion corresponding to an upper opening of the container body on a mating surface of the lid member with the container body, and when the lid member is covered on the container body, A protrusion is provided to be fitted on the inner peripheral side of the side wall. Thus, the outer peripheral surface of the projecting portion of the lid member and the inner peripheral surface of the side wall portion of the container main body are engaged in the horizontal direction, so that the lid member is prevented from falling off the container main body.

  In particular, in the case of the container with a lid described in Patent Literature 1 in which the lid member can be used upside down, projections are provided on both front and back surfaces of the lid member. Furthermore, in the container with a lid of Patent Literature 1, when the container body is covered with the lid member, the projecting portion of the lid member is formed in a frame shape so that the containers with the lid can be stacked (stacked), and the projecting portion is formed. The lower part of the container body, the upper part of which is wider than the lower part, can be fitted into the inner peripheral side of the container.

  By the way, with respect to the container with a cover of Patent Document 1, when the protrusion length of the protrusion from the cover member is short, when the protrusion is set as the mating surface side with the container body and the cover member is put on the container body, There is a concern that the engagement between the protrusion and the inner peripheral surface of the side wall of the container body becomes shallow (weak), and there is a concern that the lid member is likely to come off.

  On the other hand, it is conceivable to increase the length of the protrusion from the cover member. However, with such a configuration, the protruding length of the protruding portion becomes longer when the containers with lids are stacked in a state where the protruding portion is directed upward and the lid member is placed on the container main body, and the lid member is placed on the container body. However, there is a concern that the overall height of the stacked containers with lids will be increased, and the storage efficiency in such a stacked state will be reduced.

  The present invention has been made in order to solve the above-described problems and the like, and an object of the present invention is to prevent the lid member from falling off more reliably and to improve the storage efficiency by using a foamed resin. To provide a container with a lid.

  Hereinafter, each means suitable for solving the above-mentioned objects and the like will be described separately. In addition, a function and effect specific to the corresponding means will be added as necessary.

Means 1. A box-shaped container body that includes a substantially rectangular plate-shaped bottom wall portion and a side wall portion that extends upward from each side of the bottom wall portion, and that opens upward.
A lid member for closing an opening of the container body,
The container body and the lid member are made of foamed resin,
A first mode in which the lid member is placed on the container body in a first position, and a second mode in which the lid member is placed on the container body in a second position in which the lid member in the first position is turned upside down. In a container with a lid that can be changed between two modes,
Notch portions are formed in the lid member at a plurality of corners of the lid member,
The container body is provided with a protruding portion that protrudes upward from an upper surface of the side wall portion, corresponding to the notch portion,
In any of the first and second aspects, a notch corresponding portion of the outer peripheral surface of the lid member corresponding to the notch and a side surface of the protruding portion are in contact with or close to each other. And
In any of the first and second aspects, the upper surface of the projecting portion is lower than the outer peripheral portion of the upper surface of the lid member in a state where the lid member is covered by the container body. lidded container, characterized in that it is configured to.

  According to the means (1), the outer peripheral surface of the lid member put on the container main body and the side surface of the protruding portion projecting upward from the upper surface of the side wall of the container main body are engaged, and the lid member with respect to the container main body in the horizontal direction is engaged. Relative displacement can be prevented (positioning is performed). In particular, a lid member made of a foamed resin is often configured to be relatively thick in order to ensure heat insulation and the like. For this reason, by adopting a configuration in which the thick part of the lid member is directly supported and positioned by the projection as in the present means 1, the engagement between the lid member and the projection in the vertical direction is achieved. The range can be as large as possible. Therefore, the engagement between the lid member and the container body can be made stronger, and the lid member can be more reliably prevented from falling off.

  Further, it is not necessary to provide a configuration for positioning the container body and the lid member placed on the container body so as to protrude upward from the upper surface of the lid member in the first posture or the second posture. . Therefore, in a container with a lid provided with a lid member that can be used upside down, for example, the configuration for performing the positioning is stepped compared to a configuration that must be formed by projecting from both front and back surfaces of the lid member. The overall height of the stacked containers with lids can be suppressed, and storage efficiency and transport efficiency in such a stacked state can be improved. In particular, trucks (refrigerated vehicles) that can transport food and the like stored in containers with lids made of foamed resin while keeping them in a chilled state or a frozen state are provided with air-conditioning means at the ceiling or floor of the luggage compartment, A space for installing means for improving ventilation, means for improving heat insulation, and the like is required. For this reason, by reducing the height of the lidded container which is transported in a stacked state on such a truck as much as possible, it is possible to greatly contribute to improvement in the transportation efficiency of the lidded container.

Further , in a state where the lid member is put on the container body, the protruding portion is lower than a portion of the lid member adjacent to the protruding portion, and it is difficult for another member to contact the protruding portion. For example, when the relative position in the horizontal direction of the lidded container placed on the predetermined lidded container is slightly shifted during the stacking operation of the lidded container (there is a case where the lidded container is sometimes shifted), the lid placed on the upper side The container with the lid is slid on the upper surface of the lid member of the container with the lid on the lower side, and is slid until the relative positions match (slide stacking). In addition, the upper lid-equipped container can be less likely to be caught by the projecting portion of the lower lid-equipped container. Therefore, it is possible to prevent the protrusion from being damaged.

Means 2. The side wall portion of the container main body is located on the inner peripheral side of the side wall portion with respect to the protruding portion, and the lid member is placed on the container main body in either of the first posture and the second posture. The container with a lid according to claim 1, further comprising an abutting portion capable of abutting from below on a mating surface of the lid member with the container body.

According to the means ( 2) , the mating surface of the lid member can be supported by the side wall (contact portion) of the container body also in a portion of the lid member corresponding to the notch. Therefore, the deformation of the lid member in the stacked state of the lidded container can be more reliably suppressed. In addition, in the peripheral portion of the protruding portion or the notch portion, not only the outer peripheral surface of the lid member and the side surface of the protruding portion of the container main body are brought into contact or close to each other, but also the abutting portion and the mating surface of the lid member. The vertical contact can further suppress the formation of a gap between the container body and the lid member. Therefore, in the case where the inside of the lidded container is made to be in a substantially sealed state by covering with the lid member, the sealing performance and the heat insulating property can be improved.

  In addition, even if the lid member is put on the container body in either of the first posture and the second posture, the contact portion comes into contact with the mating surface of the lid member. Therefore, regardless of whether the container with the lid is in the first mode or the second mode, an operational effect of stably supporting the peripheral portion of the notch portion of the lid member is exerted. Also, for example, the contact portion that is supported when the lid member is placed on the container body in the first position is different from the contact portion that is supported when the lid member is placed on the container body in the second position. The contact area of the contact portion with the lid member in each aspect of the lidded container can be increased as compared with the case where the gap between the lid member and the container body can be eliminated, and the peripheral portion of the notch portion of the lid member can be removed. The operation and effect such as stably supporting are more reliably achieved.

It is a perspective view of the container with a lid in a 1st mode. It is a perspective view including a partial section of a container with a lid in a 1st mode. FIG. 2 is a partial sectional view taken along line AA of FIG. 1. It is a perspective view which shows the upper surface side of a container main body. It is a perspective view which shows the lower surface side of a container main body. It is a perspective view showing the upper surface side of a lid member. It is a perspective view showing the lower surface side of a lid member. It is a perspective view showing the state where container main bodies and lid members were stacked. It is sectional drawing which shows the state which laminated | stacked the container main bodies and the lid members. It is a perspective view showing the state where the containers with a lid in a 1st mode were piled up. It is sectional drawing which shows the state which laminated | stacked the container with a lid in a 1st aspect. It is a perspective view of the container with a lid in a 2nd mode. It is a perspective view including a partial section of a container with a lid in a 2nd mode. FIG. 13 is a partial sectional view taken along line BB of FIG. 12. It is a perspective view showing the state where the containers with a lid in a 2nd mode were piled up. It is sectional drawing which shows the state which laminated | stacked the container with a cover in a 2nd aspect.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, FIG. 2, and the like, the container 1 with a lid includes a box-shaped container main body 2 that opens upward, and a lid member 3 that can close an opening of the container main body 2. The container body 2 and the lid member 3 of the present embodiment are each integrally formed of foamed polypropylene. For this reason, as compared with those made of a non-foamed material, the thickness is configured to be thicker overall, and a step is formed by changing the thickness.

  As shown in FIGS. 4 and 5, the container body 2 includes a substantially rectangular plate-shaped bottom wall 11 having a pair of opposed long sides and a pair of opposed short sides. A long side wall portion 12 extending upward from each long side portion, and a short side wall portion 13 extending upward from each short side portion of the bottom wall portion 11 are provided.

  Further, the side wall portions 12 and 13 of the present embodiment include a lower wall portion 15 extending from the bottom wall portion 11, an overhang portion 16 extending outward from an upper edge of the lower wall portion 15, and an overhang portion 16. And an upper step wall portion 17 extending upward from the front end portion. As shown in FIG. 4, a concave portion 21 is formed in the upper side portion of the upper step wall portion 17 so as to correspond to the range including the central portion in the width direction of each of the long side wall portions 12 and each of the short side wall portions 13. Have been. Each recess 21 of the present embodiment is located outside the middle portion in the thickness direction of each long side wall portion 12 and each short side wall portion 13, and is located inside the outside recess 22. And an inner recess 23 formed one step lower than the outer recess 22. The inner concave portion 23 is configured so that the lateral width is slightly longer than the outer concave portion 22. Further, both side surfaces of the outer concave portion 22 and the inner concave portion 23 are formed obliquely.

  Further, the container body 2 is provided with a protruding portion 24 protruding upward from the upper surface of the upper wall portion 17 at each corner of the upper wall portion 17. Further, the upper wall portion 17 includes a bulging portion 25 bulging from each corner to the inner peripheral side of the upper wall portion 17. In the present embodiment, the inner surface of the bulging portion 25 is configured such that the inner surface of the long side wall portion 12 and the inner surface of the short side wall portion 13 are obliquely connected.

  Further, the protruding portion 24 of the present embodiment is formed so as to be more distant from the outer peripheral side than the inner peripheral side of the upper wall 17 of the bulging portion 25. Further, the upper surface of the bulging portion 25 is also flush with the upper surface (of the general portion) of the upper step wall portion 17. As will be described in detail later, the upper surface of the bulging portion 25, together with the upper surface of the upper step wall portion 17, comes into contact with the mating surface of the lid member 3 with the container body 2 (the surface facing downward), and It is configured to support.

  In addition, the outer peripheral side of each corner of the upper step wall portion 17 has a shape in which the corner is chamfered flat. The protruding portion 24 of the present embodiment has a hexagonal shape in plan view, and the outer peripheral surface of the protruding portion 24 has two surfaces extending in parallel with the long side wall portion 12 (one of which is the long side wall portion). And two surfaces extending parallel to the short side wall portion 13 (one surface of which extends continuously with the outer surface of the short side wall portion 13); It has a surface extending substantially parallel to the inner surface of the bulging portion 25 and a surface extending continuously with an oblique surface formed by chamfering the outer peripheral surface side of the corner of the upper step wall portion 17.

  As shown in FIGS. 6 and 7, the lid member 3 is formed in a substantially rectangular plate-like lid body 31 capable of closing an opening of the container body 2, and is formed so as to protrude on one side of the lid body 31. And a convex portion 32 that can be fitted into each of the concave portions 21. As shown in FIG. 7, the convex portion 32 has a shape corresponding to the concave portion 21 of the container body 2, and has an outer convex portion 33 fitted into the outer concave portion 22 and an inner convex portion fitted into the inner concave portion 23. 34. Hereinafter, the surface of the lid main body 31 on which the convex portion 32 is formed is referred to as a “back surface”, and the opposite surface is referred to as a “front surface”.

  Now, cutouts 36 are formed at the four corners of the lid main body 31 so as to correspond to the respective projecting parts 24. Then, as shown in FIG. 1 and the like, when the lid member 3 is put on the container body 2 in the first position in which the convex portion 32 faces downward, each projecting portion 24 of the container body 2 The outer peripheral portion of the mating surface of the lid main body 31 with the container main body 2 (the surface facing the lower side, in this case, the back surface of the lid main body 31) looks like the one inserted into the notch portion 36, and The second upper wall portion 17 is supported in contact with the upper surface of the upper wall portion 17. At this time, the notch corresponding portion 37 corresponding to each notch 36 in the outer peripheral surface of the lid main body 31 and the side surface of the protruding portion 24 are in contact with or close to each other. Thereby, the relative displacement of the lid member 3 in the horizontal direction with respect to the container body 2 is prevented.

  Further, as described above, the container main body 2 of the present embodiment has an upper surface which is flush with the upper surface of the upper wall 17 at a position adjacent to the inner peripheral side of the upper wall 17 with respect to each protruding portion 24. An outlet 25 is provided (see FIG. 4). Thereby, as shown in FIG. 3 and the like, a portion (peripheral portion) extending along the cutout portion 36 on the lower surface of the lid main body 31 of the lid member 3 abuts on the upper surface of the bulging portion 25 and is supported. It has become. Therefore, even if the projection 24 is provided at the corner of the upper surface of the upper wall 17, the portion where the upper wall 17 and the lid member 3 come into contact with each other up and down around the projection 24 is not interrupted. It has become. In this embodiment, the upper surface of the bulging portion 25 constitutes a contact portion.

  Further, as shown in FIG. 2 and the like, with respect to the container 1 with the lid in the first mode in which the lid member 3 in the first position is covered on the container body 2, each convex portion 32 of the lid member 3 And the inner space of the lidded container 1 is sealed. In particular, in the present embodiment, the convex portion 32 and the concave portion 21 have a two-stage structure, thereby stabilizing the state in which the lid member 3 is attached to the container body 2 and improving the sealing performance and the heat insulating performance. ing.

  As shown in FIGS. 1 and 2 and the like, the protrusions 32 corresponding to the respective short-side side wall portions 13 are provided at the distal end side in the protruding direction of the outer protrusions 33 and on the outer side. Are formed. By forming the finger hooking concave portion 39, the cover member 3 is put on the container main body 2 in the first position, and even when the convex portion 32 is fitted into the concave portion 21, the short side wall portion 13 is not covered. A gap can be formed between the bottom surface of the outer concave portion 22 and the outer convex portion 33 fitted into the outer concave portion 22. Therefore, it is possible to lift the lid member 3 relatively easily by putting a fingertip on the lower side of the convex portion 32 (outside convex portion 33) corresponding to each short side wall portion 13 through the gap. .

  In addition, as shown in FIG. 7, on the rear surface side of the lid main body 31, a fitting convex portion 41 that fits into the upper opening of the container main body 2 is provided. When the lid member 3 is put on the container body 2 in the first posture, the fitting projection 41 is inserted into the inner peripheral side of the upper wall portion 17 of the container body 2 as shown in FIG. At the same time, the outer peripheral surface of the fitting convex portion 41 comes into contact with or approaches the inner peripheral surface of the upper step wall portion 17. Thereby, stabilization of the state in which the lid member 3 is attached to the container main body 2 and improvement in hermeticity and heat insulation are achieved.

  As shown in FIGS. 1 and 6, the notch corresponding portion 37 is not formed in an L-shape, but corresponds to a surface of the protruding portion 24 that extends substantially parallel to the inner surface of the bulging portion 25. It has an oblique surface. Therefore, when a force is applied to the lid member 3 in a direction oblique to the width direction of the long side wall portion 12 and the short side wall portion 13, the notch corresponding portion 37 The portion 24 and the surfaces extending substantially perpendicular to the direction of the force can be brought into contact with each other. Therefore, for example, as compared with the case where the notch corresponding portion 37 or the portion of the outer peripheral surface of the protruding portion 24 on the inner peripheral side of the upper step wall portion 17 is formed in an L shape, damage to the corresponding portion is suppressed. The Rukoto.

  In addition, as shown in FIGS. 1, 3, 4, and the like, in the present embodiment, the protruding length of the protruding portion 24 from the upper surface of the upper step wall portion 17 is equal to the outer peripheral portion of the lid main body 31 (from the fitting convex portion 41). Is also shorter than the thickness of the outer peripheral portion). For this reason, when the lid member 3 is covered with the container main body 2, the upper surface of the protrusion 24 is configured to be lower than the outer peripheral portion of the upper surface of the lid member 3.

  As shown in FIG. 4 and the like, the container body 2 of the present embodiment is configured such that the outer dimension of the lower step wall 15 is slightly smaller than the inner dimension of the upper step wall 17. As shown in FIG. 5, an allowance recess 27 that allows the protrusion 24 to be inserted is provided at a corner of the lower surface of the overhang 16 of the container body 2. Then, as shown in FIGS. 8 and 9, by stacking the container main bodies 2 vertically (stacking), the lower part of the upper container main body 2 is placed inside the upper wall portion 17 of the lower container main body 2. The wall portion 15 is inserted, the protrusion 24 of the lower container body 2 is inserted into the allowable concave portion 27 of the upper container body 2, and the lower surface of the overhang portion 16 of the upper container body 2 is The container main body 2 is configured to be in contact with and supported by the upper wall portion 17 and the upper surface of the bulging portion 25.

  Since the bulging portion 25 (see FIG. 4) is provided at the corner of the upper wall portion 17 as described above, when the container main bodies 2 are stacked, the upper part of the lower container main body 2 is stacked. The lower wall portion 15 and the bottom wall portion 11 to be inserted inside the wall portion 17 are shaped such that each corner is chamfered according to the shape of each bulging portion 25 (see FIG. 5 and the like). Has made. Further, since the concave portion 21 is formed in the upper side of the upper step wall portion 17 of the container main body 2, when the container main bodies 2 are stacked, the bottom surface of the outer concave portion 22 of the lower container main body 2, A gap can be formed between the upper container body 2 and the lower surface of the overhanging portion 16 of the upper container body 2. Can be lifted.

  Further, as shown in FIG. 6 and the like, on the front surface side of the lid main body 31, there is provided a stacking concave portion 42 formed such that a portion where the fitting convex portion 41 is formed on the rear surface side is depressed. ing. Then, as shown in FIGS. 10 and 11, when stacking the lidded container 1 in the first mode in which the lid member 3 is placed on the container body 2 in the first posture, the lower lidded container 1 The lower part of the container main body 2 of the container 1 with the upper lid is fitted into the inside of the stepped recess 42. As a result, the inner peripheral surface of the stepped concave portion 42 of the lower lidded container 1 and the lower portion of the outer peripheral surface of the container main body 2 of the upper lidded container 1 abut or come close to each other. The horizontal displacement of the container body 2 of the container 1 with the lid on the upper side with respect to the cover member 3 of the container 1 is prevented.

  As shown in FIGS. 8 and 9, the recess 42 for stacking is formed so as to partially expand the inner peripheral surface of the recess 42 for stacking, and the lid members 3 are connected to each other. An extended concave portion 43 is provided in which the inner convex portion 34 that protrudes larger than the outer convex portion 33 inside the outer convex portion 33 among the convex portions 32 when vertically stacked is insertable. With this configuration, the lid members 3 can be stacked one on top of the other.

  Further, in the present embodiment, as shown in FIGS. 12 to 14, the lid member 3 in the second position, which is obtained by turning the lid member 3 in the first position upside down, can be put on the container body 2. It is configured. Thus, even when the cover member 3 is placed on the container main body 2 in the second posture, each protruding portion 24 of the container main body 2 has the appearance as if it were inserted into each notch portion 36 of the cover member 3, The outer peripheral portion of the mating surface of the lid main body 31 with the container main body 2 (the surface facing the lower side, in this case, the surface of the lid main body 31) is the upper step wall portion 17 and the bulging portion 25 of the container main body 2. And is supported in contact with the upper surface of. Further, the notch corresponding portion 37 corresponding to each notch 36 in the outer peripheral surface of the lid main body 31 abuts or approaches the side surface of the protruding portion 24, and the horizontal direction of the lid member 3 with respect to the container main body 2. The relative displacement in the direction is prevented.

  However, as shown in FIG. 12 and the like, with respect to the container 1 with the lid in the second mode in which the lid member 3 in the second position is covered on the container main body 2, the convex portion 32 of the lid member 3 faces upward. Since the convex portion 32 is not fitted into the concave portion 21 of the container main body 2, an opening is formed between the container main body 2 and the lid member 3 in each concave portion 21. For example, when the temperature inside the lidded container 1 is adjusted from the outside of the lidded container 1 or when the inside and outside of the lidded container 1 are ventilated, the container 1 with the lid is used as the second mode. Become.

  Even if the lid member 3 is placed on the container main body 2 in either of the first posture and the second posture, the thickness portion (the front surface or the back surface) of the lid body 31 is formed by the upper wall portion 17 and the bulging portion. Since it is configured to be supported on the upper surface of the projecting portion 25, even when the lid member 3 is covered with the container body 2 in the second posture as shown in FIGS. Is configured to be lower than the outer peripheral portion of the upper surface of the lid member 3.

  In addition, as shown in FIGS. 15 and 16, when stacking the container 1 with the lid according to the second embodiment, the four convex portions 32 ( The lower part of the container main body 2 of the container 1 with the upper lid is fitted inside the inner convex portion 34). As a result, the inner side surface of each convex portion 32 of the lower lidded container 1 and the lower part of the outer peripheral surface of the container body 2 of the upper lidded container 1 abut or approach each other, and the lower lidded container 1 The horizontal displacement of the container main body 2 of the container 1 with the upper lid with respect to the lid member 3 is prevented.

  As described in detail above, according to the present embodiment, notch portions 36 are formed at the four corners of the lid body 31 of the lid member 3, and the container body 2 is formed so as to correspond to each of the notch portions 36. In addition, a protruding portion 24 protruding upward from the upper surface of the side wall portions 12 and 13 (upper wall portion 17) is provided. Then, each of the lidded containers 1 has a first mode in which the lid member 3 in the first position (the position in which the convex portion 32 faces downward) is placed on the container body 2, and a second position (in which the convex portion 32 faces upward). In any of the second modes in which the cover member 3 is placed on the container main body 2, a notch corresponding portion 37 corresponding to each notch portion 36 on the outer peripheral surface of the cover member 3, and each protrusion The side surface of the portion 24 is configured to be in contact with or close to.

  With this configuration, the outer peripheral surface of the lid member 3 covered on the container main body 2 and the side surface of the projecting portion 24 of the container main body 2 are engaged with each other, thereby preventing relative displacement of the lid member 3 with respect to the container main body 2 in the horizontal direction. (Perform positioning). In particular, since the lid member 3 made of expanded polypropylene is configured to be relatively thick in order to ensure heat insulation and the like, the thick portion of the lid member 3 is replaced with By adopting a configuration in which the protrusion 24 directly supports the positioning, the range of engagement between the lid member 3 and the protrusion 24 in the vertical direction can be maximized. Therefore, the state of engagement between the lid member 3 and the container body 2 can be made stronger, and the lid member 3 can be more reliably prevented from falling off.

  In addition, a structure for positioning the container body 2 and the lid member 3 placed on the container body 2 is provided so as to protrude upward from the upper surface of the lid member 3 in the first posture or the second posture. You don't have to. Therefore, in the container 1 with the lid provided with the lid member 3 that can be used upside down, for example, the configuration for performing the positioning is configured to be formed by projecting from both front and back surfaces of the lid member 3. In comparison, the overall height of the stacked containers with lids 1 can be suppressed, and the storage efficiency and transport efficiency in such a stacked state can be improved. In particular, a truck (refrigerated refrigerator) capable of transporting foods and the like stored in a container 1 with a lid made of foamed resin (in this example, made of foamed polypropylene) while maintaining a chilled state or a frozen state of the food, etc. In a part or a floor, a space for installing an air-conditioning means, a means for improving ventilation, a means for enhancing heat insulation, and the like is required. For this reason, by reducing the height of the lidded container 1 transported in such a state as being stacked on the truck, it is possible to greatly contribute to improvement in the transport efficiency of the lidded container 1.

  In addition, since the configuration for positioning the container main body 2 and the lid member 3 put on the container main body 2 is visible from the outside of the lidded container 1, the lid member 3 is tightly attached to the container main body 2. Can be reliably and easily checked.

  Further, in a state where the lid member 3 is covered with the container main body 2, the upper surface of the protruding portion 24 is formed on the outer peripheral portion of the upper surface of the lid member 3 (the fitting convex portion 41 on the rear surface or the front surface of the lid main body 31, or the stacking portion). It is configured to be lower than the part where the recess 42 is formed (the part on the outer peripheral side than the part where the concave part 42 is formed). Accordingly, in a state where the lid member 3 is put on the container body 2, the protruding portion 24 becomes lower than a portion of the lid member 3 adjacent to the protruding portion 24, and another member comes into contact with the protruding portion 24. It becomes difficult to do. For example, during the stacking operation of the containers 1 with lids, when the relative position in the horizontal direction of the containers 1 with lids placed on a predetermined container 1 with lids is slightly shifted (there may be a case where the containers 1 are laid out shifted). The container 1 with the lid placed thereon is slid on the upper surface of the lid member 3 of the container 1 with the lid on the lower side, and is slid until the relative positions match (slide stacking). When performing such a slide stack, it is possible to make it difficult for the upper lidded container 1 to be caught by the projecting portion 24 of the lower lidded container 1. Therefore, it is possible to prevent the protrusion 24 from being damaged.

  Further, the container body 2 is provided so as to bulge inward from each corner of the upper wall 17, and a bulge 25 located on the inner peripheral side of the upper wall 17 with respect to each protrusion 24. Have. When the lid member 3 is put on the container body 2, the bulging portion 25 is configured to abut vertically on a mating surface (a surface facing downward) of the lid member 3 with the container body 2. ing. For this reason, even at a portion of the cover member 3 corresponding to the cutout portion 36, the mating surface of the cover member 3 can be supported by the side walls 12, 13 (the bulging portion 25) of the container body 2. . Therefore, the deformation of the lid member 3 in the stacked state of the lidded containers 1 can be more reliably suppressed.

  In addition, not only the outer peripheral surface of the lid member 3 and the side surface of the protruding portion 24 of the container body 2 are brought into contact with or close to each other at the peripheral portion of the protruding portion 24 or the cutout portion 36, but also the bulging portion 25 and the lid. By vertically contacting the mating surface of the member 3, formation of a gap between the container body 2 and the lid member 3 can be further suppressed. Therefore, in the case where the inside of the lidded container 1 is put in a substantially sealed state by covering the lid member 3 in the first posture, the sealing performance and the heat insulating property can be improved.

  In addition, in the present embodiment, even if the lid member 3 is placed on the container body 2 in either of the first posture and the second posture, the same portion on the upper surface of the bulging portion 25 (in this example, the long side The entire side wall portion 12 and the upper surface of the short side wall portion 13 are in contact with the mating surface of the lid member 3. Therefore, regardless of whether the container 1 with the lid is in the first mode or the second mode, the effect of stably supporting the peripheral portion of the notch 36 of the lid member 3 is achieved. In addition, for example, a portion that is supported when the lid member 3 is covered on the container body 2 in the first position is different from a region that is supported when the cover member 3 is covered on the container body 2 in the second position. The contact area of the bulging portion 25 with the lid member 3 in each mode of the lidded container 1 is increased as compared with the case (so that the upper surfaces of the long side wall portion 12 and the short side wall portion 13 are connected flush with each other). And the effect of eliminating the gap between the lid member 3 and the container body 2 and stably supporting the periphery of the notch portion 36 of the lid member 3 is more reliably achieved. Is played.

  It should be noted that the present invention is not limited to the content described in the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modifications not illustrated below are naturally possible.

  (A) In the above embodiment, when the lid member 3 is placed on the container body 2 in the first position, the container 1 with the lid is sealed, and the container 1 with the lid is placed upside down on the container body 2 in the second position. In such a case, the opening is formed in the container 1 with the lid. However, even if the lid member 3 is placed on the container body 2 in either of the first posture and the second posture, the lid member 3 has the lid. The container 1 may be configured to be sealed. In this case, for example, the stacking concave portions having different shapes are provided on the front surface and the rear surface of the lid member 3 so that the lid member 3 can be used as a common lid member corresponding to a container body having a different lower shape (outer dimension). You may.

  (B) In the above embodiment, the side walls 12 and 13 of the container body 2 have a two-stage structure of the lower wall 15 and the upper wall 17, but the side walls 12 and 13 are directed upward and outward. The outer and inner dimensions of the container body 2 may be configured so as to gradually expand from the lower part to the upper part of the container body 2 as a substantially flat plate shape extending while being inclined.

  Further, in the above-described embodiment, on the back side of the lid member 3, the protrusion 32 has a two-stage structure of the outer protrusion 33 and the inner protrusion 34, and has a shape corresponding to the upper opening of the container body 2. Although the mating convex portion 41 is provided to improve the heat insulating property and the like, the convex portion 32 may not be formed in a stepped shape, and the fitting convex portion 41 may be omitted.

  (C) In the above-described embodiment, the protrusions 24 are provided at the four corners of the upper surface of the upper step wall portion 17. For example, the protrusion portions 24 are provided at the middle positions in the width direction of the long side wall portion 12 and the short side wall portion 13. The protrusions 24 may be provided, or only one pair of the protrusions 24 may be provided at diagonals of the upper step wall portion 17. However, in terms of function and shape (the inner and outer peripheral surfaces of the container body 2 are formed with irregularities in the circumferential direction, so that the inner space becomes difficult to use or the installation space of the container body 2 becomes extra. Bulges 25 are formed corresponding to the corners which are relatively thick and easy to be formed in the upper wall portion 17, and the protruding portions are formed there. By providing the protrusion 24, the protrusion 24 can be provided relatively large without impairing the functionality of the lidded container 1, and furthermore, at the upper surface of the bulge 25 located on the inner peripheral side of the protrusion 24. , And can support the mating surface of the lid member 3. In addition, since the projecting portions 24 are provided at the four corners of the upper step wall portion 17, such an operation and effect can be further achieved.

  (D) In the above embodiment, the lidded container 1 is made of foamed polypropylene, but may be made of other foamed resin materials such as foamed polyethylene and foamed polystyrene.

  DESCRIPTION OF SYMBOLS 1 ... Container with a lid, 2 ... Container main body, 3 ... Lid member, 11 ... Bottom wall part, 12 ... Long side wall part, 13 ... Short side wall part, 15 ... Lower wall part, 17 ... Upper wall part, Reference numeral 21 denotes a concave portion, 22 denotes an outer concave portion, 23 denotes an inner concave portion, 24 denotes a protruding portion, 25 denotes a bulging portion, 31 denotes a lid body, 32 denotes a convex portion, 33 denotes an outer convex portion, 34 denotes an inner convex portion, and 36 denotes a cut. Notched portion, 37: Notch corresponding portion, 42: recess for stacking.

Claims (2)

A box-shaped container body that includes a substantially rectangular plate-shaped bottom wall portion and a side wall portion that extends upward from each side of the bottom wall portion, and that opens upward.
A lid member for closing an opening of the container body,
The container body and the lid member are made of foamed resin,
A first mode in which the lid member is placed on the container body in a first position, and a second mode in which the lid member is placed on the container body in a second position in which the lid member in the first position is turned upside down. In a container with a lid that can be changed between two modes,
Notch portions are formed in the lid member at a plurality of corners of the lid member,
The container body is provided with a protruding portion that protrudes upward from an upper surface of the side wall portion, corresponding to the notch portion,
In any of the first and second aspects, a notch corresponding portion of the outer peripheral surface of the lid member corresponding to the notch and a side surface of the protruding portion are in contact with or close to each other. And
In any of the first and second aspects, the upper surface of the projecting portion is lower than the outer peripheral portion of the upper surface of the lid member in a state where the lid member is covered by the container body. A container with a lid, characterized in that: The side wall portion of the container main body is located on the inner peripheral side of the side wall portion with respect to the protruding portion, and the lid member is placed on the container main body in either of the first posture and the second posture. The container with a lid according to claim 1, further comprising: a contact portion that can be contacted from below with a mating surface of the lid member with the container body.

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