JP7076779B2 - Folding container - Google Patents

Description

The present invention relates to a folding container used for transporting articles and the like.

Conventionally, a bottom wall portion having a substantially rectangular shape, a bottom wall component portion having a base portion protruding upward along each side side portion of the bottom wall portion, and a bottom wall component portion rotating with respect to each base portion, respectively. Folding containers are known that are provided with a side wall portion that is freely connected and can be assembled into a box shape that opens upward, and each side wall portion can be folded above the bottom wall portion.

Further, there is a technique of providing a handle portion on the outer surface side (side wall portion or the like) of the folding container so that an operator can handle the folding container (see, for example, Patent Document 1 and the like).

Japanese Unexamined Patent Publication No. 2001-122254

By the way, with respect to a folding container having a low height, it may be difficult to secure a space in which a handle portion can be suitably provided on the outer surface.

The present invention has been made to solve the above-exemplified problems and the like, and an object of the present invention is to provide a folding container in which a handle portion can be suitably provided even if the height is low. ..

Hereinafter, each means suitable for solving the above-mentioned purpose and the like will be described separately for each item. In addition, the action and effect peculiar to the corresponding means will be added as necessary.

Means 1. A bottom wall component having a bottom wall portion having a substantially rectangular shape in a plan view and a base portion protruding upward along each side portion of the bottom wall portion.
With respect to each base portion of the bottom wall component portion, the standing position erected above each base portion and the laying position laid above the bottom wall portion are rotatably and displaceably connected to each other. In a folding container with a displaced side wall,
The base portion connects the pair of facing first base portions protruding upward from the pair of opposite side sides of the bottom wall portion and the both ends of the pair of first base portions, respectively. A pair of opposite second base portions provided along the side portions of the bottom wall portion are provided.
The bottom wall component is located downward and outward in one or both of the lower positions of the pair of first bases and the lower positions of the pair of second bases. A concave handle portion that opens is provided, and a reinforcing convex portion that protrudes upward from the base portion is provided at a position above the range in which the handle portion is provided .
The second base portion is configured to be lower in height than the first base portion.
When the assembled state in which all the side wall portions are in the upright position is changed to the folded state in which all the side wall portions are in the laying position, the pair of second side wall portions are laid down. In a configuration in which the first side wall portion can be set to the laying position by setting the position.
The handle portion is provided at a position below the second base portion connected to the second side wall portion.
The foldable container is characterized in that the reinforcing convex portion is provided at a position that does not overlap vertically with the first side wall portion that is laid down.
Means 2. The handle portion is configured such that the lower surface of the bottom wall constituent portion is displaced upward.
The folding container according to means 1, wherein the reinforcing convex portion has a portion extending in parallel with the handle portion, and the length thereof corresponds to the length of the handle portion.
Means 3. The handle portion is configured such that the lower surface of the bottom wall constituent portion is displaced upward.
The reinforcing convex portion is characterized in that the handle portion is projected upward by the same length as the lower surface of the bottom wall constituent portion is displaced upward. The folding container according to means 1 or 2.

According to the means 1 , 2 and 3, the bottom wall constituent portion is provided with a concave handle portion at a position below the pair of opposing base portions. For this reason, when the folding container is carried from the state where the folding container is installed on the floor surface or the like, or when the folding containers are stacked vertically (stacked), the folding container is carried through the handle portion. The folding container can be lifted by hanging the fingertip on the lower surface side of the bottom wall component. Furthermore, when installing the folding container on the floor surface or stacking the folding containers, the finger supporting the lower surface side of the folding container may come into contact with the floor surface or the like via the handle. Can be prevented. Therefore, even if the handle portion is not provided on the side wall portion due to the low height of the foldable container in the assembled state, the foldable container can be relatively easily provided by providing the handle portion on the bottom wall component portion. Can be carried to.

Further, by providing the reinforcing convex portion, it is possible to prevent the strength of the portion of the bottom wall constituent portion where the handle portion is provided from being lowered. Therefore, it effectively suppresses situations such as damage or deformation of the handle, which requires a relatively large force to be applied when the folding container is carried by putting a hand on the handle. be able to. Further, the vertical width of the portion of the bottom wall component where the handle portion is provided can be secured to some extent. Since the vertical width of the wall component is too small, the bottom wall component is gripped (the lower surface side of the bottom wall component is supported by the index finger, middle finger, medicine finger, etc. through the handle, and the thumb or thumb. It is possible to avoid a situation in which it becomes difficult to support the upper surface side of the bottom wall component around the base of the bottom wall and hold the bottom wall component up and down.

Means 4 . In the assembled state in which all the side wall portions are in the upright position, the upper side portion of the side wall portion is located upward and outward in the range where the handle portion is provided. The folding container according to any one of means 1 to 3, wherein an opening concave handle assisting portion is provided.

According to the means 4 , when the upper folding container is sequentially carried from the state in which the folding containers in the assembled state are stacked, the handle portion of the upper folding container and the handle auxiliary portion of the lower folding container are carried. A fingertip can be inserted between the upper folding container and the lower folding container, and a finger can be hung on the lower surface side of the bottom wall component of the upper folding container to lift the container. Therefore, it is possible to facilitate the work of lifting the folding containers in the stacked state in the assembled state, as compared with the case where the handle assist portion is not provided. In addition, when stacking the folded containers in the assembled state, there is a problem caused by the finger supporting the lower surface side of the folding container via the handle part strongly contacting the lower folding container. It can be prevented more reliably.

Means 5. The side wall portion includes a pair of first side wall portions connected to each of the first base portions, and a pair of second side wall portions connected to each of the second base portions.
In the pair of second side wall portions, a connected state in which the first side wall portion in the upright position and the second side wall portion in the upright position are connected and the connected state are released. A connecting means that can change the state is attached to the released state.
The pair of first side wall portions is provided with a locked portion that is locked to the connecting means in the connected state.
The bottom wall component is provided with a handle portion at a position below each second base portion connected to the second side wall portion to which the connecting means is mounted.
The second base portion is configured to be lower in height than the first base portion.
When the assembled state in which all the side wall portions are in the upright position is changed to the folded state in which all the side wall portions are in the laying position, the pair of second side wall portions are laid down. In a configuration in which the first side wall portion can be set to the laying position by setting the position.
Each of the connecting means is in a locked state with respect to an operating portion operated when the connecting means is changed from the connected state to the disengaged state and the locked portion of the pair of first side wall portions. A pair of locking portions are provided, and the locked state of the pair of locking portions is released at once by performing an operation on the operating portion.
The folding container according to any one of means 1 to 4, wherein the operation portion and the handle portion are arranged vertically in the assembled state.

According to the means 5 , even if the height of the folding container in the assembled state is low and the connecting means is attached to the side wall portion, the handle portion cannot be suitably provided for the side wall portion. Even in such a case, the handle portion provided at the lower position makes it possible to carry the folding container relatively easily. In particular, the connecting means and the handle portion are provided on the same side surface of the four side surfaces constituting the outer peripheral surface of the folding container. For this reason, when moving from one to the other of the work of changing the state of the connecting means and the work of raising and lowering (lifting and installing) the folding container by holding the handle, the operator has to hand. Can only be changed in position (there is no need to change the relative orientation, such as the operator moving or rotating the folding container). Therefore, the series of operations can be performed relatively smoothly and continuously, and the workability can be dramatically improved.

In addition , the action and effect of changing the state of the connecting means to change the form of the folded state and facilitating a series of operations such as raising and lowering the folding container by holding the handle portion can be more reliably achieved.

It is a perspective view of the folding container in an assembled state. It is a perspective view of the folding container in a folded state. It is a side view of the folding container in a folded state. It is a perspective view of the bottom wall component part. It is a perspective view which shows the state which the folding container in the assembled state is stacked. It is a perspective view which shows the state which the folding container which is in a folded state is stacked. It is a partially enlarged perspective view including a partial cross section which shows the state which the folding container in an assembled state is stacked. It is a partially enlarged perspective view including a partial cross section which shows the state which the folding container in a folded state is stacked.

Hereinafter, one embodiment will be described with reference to the drawings. As shown in FIGS. 1, 4, and the like, the folding container 1 has a bottom wall portion 3 having a substantially rectangular shape in a plan view, and projects upward from the bottom wall portion 3 along each long side portion of the bottom wall portion 3. It is provided with a bottom wall component portion 2 including a long side base portion 4 to be formed and a short side base portion 5 protruding upward from the bottom wall portion 3 along each short side portion of the bottom wall portion 3. .. Further, the folding container 1 is rotatably attached to the long side side wall portion 6 rotatably attached to each long side base portion 4 and to each short side side base portion 5, respectively. It is provided with a side wall portion 7 on the short side. The bottom wall constituent portion 2, the long side side wall portion 6, and the short side side side wall portion 7 of the present embodiment are made of polypropylene.

As shown in FIGS. 1 and 2, the long side side wall portion 6 and the short side side side wall portion 7 are erected above the long side side base portion 4 and the short side side base portion 5, respectively. It is configured to be rotatable and displaceable between the standing position and the laying position laid above the bottom wall portion 3. Further, the protrusion length of the long side base portion 4 from the bottom wall portion 3 is longer than the protrusion length of the short side base portion 5 from the bottom wall portion 3, and the long side side wall portion 6 is rotated. The formation position of the long side bearing portion 8 for rotatably supporting is also located above the forming position of the short side bearing portion 9 for rotatably supporting the short side side wall portion 7 ( See FIG. 4). Further, as shown in FIG. 1 and the like, the lateral width of the long side side wall portion 6 is configured to be substantially the same as the longitudinal width of the bottom wall constituent portion 2, and the lateral width of the short side side wall portion 7 is a pair of long side side walls. It is configured to be almost the same as the distance between the base portions 4.

Therefore, in the present embodiment, as shown in FIG. 1, the folding container 1 in the assembled state in which all the long side side wall portions 6 and the short side side side wall portions 7 are in the upright position is shown in FIG. As shown, when all the long side side wall portions 6 and the short side side wall portions 7 are in the folded state in which the laying position is set, the pair of short side side wall portions 7 are placed in the laying position first. After the displacement, the side wall portion 6 on the long side is displaced to the laying position. When the folding container 1 is in the folded state, the short side side wall portion 7 in the laid position overlaps above the bottom wall portion 3, and the long side side wall portion 6 in the laid position is short. It overlaps above the side wall portion 7. In the present embodiment, the long side side wall portion 6 corresponds to the first side wall portion, and the short side side side wall portion 7 corresponds to the second side wall portion.

In addition, as shown in FIG. 2, the long side side wall portion 6 projects downward from the lower side portion of the long side side wall portion 6 and rotates with respect to the long side side bearing portion 8 of the long side side base portion 4. A long-side hinge portion 10 that is movably connected is provided. Further, the short side side wall portion 7 projects downward from the lower side portion of the short side side wall portion 7, and is rotatably connected to the short side side bearing portion 9 of the short side side base portion 5. A side hinge portion 11 is provided.

As shown in FIG. 2, in the present embodiment, the vertical width of the short side side wall portion 7 is shorter than half the length of the distance between the pair of short side side base portions 5, and the folding container 1 is folded. In the state, the pair of short side side wall portions 7 both abut on the upper surface of the bottom wall portion 3 and the height positions are aligned. Further, the vertical width of the long side side wall portion 6 is shorter than half the length of the distance between the pair of long side side base portions 4, and in the folded state of the folding container 1, the pair of long side side side wall portions The height positions of 6 are aligned. The upper surface of the long side base portion 4 of the present embodiment that abuts and supports the lower side portion of the long side side wall portion 6 that is in the upright position is basically the long side side side wall portion 6 that is in the laid position. Of these, it is located slightly above the surface facing upward, but as shown in FIGS. 2 and 4, both ends and the center of the long side base portion 4 are long. It protrudes upward from the other parts of the side base part 4 (hereinafter, the protruding part is also referred to as "folding stepped portion 12"). Further, an auxiliary convex portion 13 that protrudes above the short side base portion 5 from the folding step stacking protrusions 12 at both ends of the long side base portion 4 and is connected to the upper surface side of the short side base portion 5 It is provided.

Further, as shown in FIG. 1 and the like, insertion protrusions 21 projecting outward are provided on both sides of the outer surface of the short side side wall portion 7. On the other hand, the long side side wall portion 6 is provided with a locking wall 22 protruding inward from both side portions of the inner surface, and the locking wall 22 is in an assembled state with the folding container 1. Is provided with an insertion hole 23 into which the insertion protrusion 21 of the side wall portion 7 on the short side is inserted. With this configuration, tilt displacement to the outside of the short side side wall portion 7 and tilt displacement to the inside and outside of the long side side wall portion 6 are prevented, and the long side side wall portion 6 and the short side wall portion 6 are prevented. The displacement in the vertical direction between the side wall portion 7 and the side wall portion 7 is prevented. In the assembled state of the folding container 1, the upper side portion of the long side side wall portion 6 and the upper side portion of the short side side wall portion 7 are substantially flush with each other.

Further, on the outer surface side of the short side side wall portion 7, there are a connected state in which the long side side wall portion 6 in the upright position and the short side side wall portion 7 in the upright position are connected, and the connected state. A connecting member installation portion 25 is provided in which a connecting member 24 is installed as a connecting means that can change the state to the released state. The connecting member 24 includes a connecting member main body 26 extending from one left and right side of the short side side wall portion 7 to the other side portion, and a leaf spring portion 27 for urging the connecting member main body 26 upward in the connecting member installation portion 25. It is provided with a concave operating portion 28 provided at the center portion in the lateral width direction on the outer surface side of the connecting member main body 26.

Further, the long side side wall portion 6 is provided with a locking protrusion (not shown) as a locked portion protruding inward from the inner surface of the long side side wall portion 6 at a position below the locking wall 22. There is. The locking protrusion has a substantially U-shaped cross section that opens downward on the protruding direction side. On the other hand, the side wall portion 7 on the short side faces the locking wall 22 in the assembled state of the folding container 1 and is in contact with or close to the locking wall 22 in the thickness direction of the side wall portion 7 on the short side side. A locking recess 30 that penetrates and opens to the side of the side wall portion 7 on the short side is provided. In the assembled state of the folding container 1, the locking protrusion of the long side side wall portion 6 is inserted into the locking recess 30, and the locking protrusion is arranged in the connecting member installation portion 25. There is. Further, in the assembled state of the folding container 1, the upper portions of both ends of the connecting member main body 26 are each inserted and locked inside the locking protrusions (the connecting member 24 is in the connected state). When the connecting member 24 is in the connected state, the long side side wall portion 6 in the upright position and the short side side wall portion in the upright position are prevented from being tilted and displaced inward. Relative displacement with the portion 7 is prevented. In addition, by operating the operation unit 28 to displace the connecting member main body 26 downward, both ends of the connecting member main body 26 are displaced to positions where they come out from the inside of the locking protrusions (the connecting member 24 is displaced). (It is in the released state), and the displacement of the short side side wall portion 7 inward is allowed. In this embodiment, both ends of the connecting member main body 26 correspond to locking portions.

Further, as shown in FIGS. 2 to 4, etc., the folding container 1 is opened upward and outward on the upper surface side of each short side base portion 5 of the bottom wall constituent portion 2, and the folding container 1 is in a folded state. In this case, a locking accommodating portion 31 is provided in which the locking wall 22 (and the locking projection portion (not shown) of the short side side wall portion 7 in the laid position is accommodated (inserted). With this configuration, the height of the folded container 1 in the folded state (the height of the side wall portion 6 on the long side facing upward) is made as low as possible, and the side wall portion 6 on the long side side in the laid position is laid down. It is designed to prevent displacement in the horizontal direction.

The locking accommodating portion 31 of the present embodiment is configured to have a bottomed shape, and the long side side wall portion 6 set to be laid down abuts on the bottom surface of the locking accommodating portion 31 at the locking wall 22. Has come to be supported. However, the long side side wall portion 6 in the laid position may be supported by being in contact with the surface facing upward of the short side side wall portion 7 in the laid position, or the short side base. It may be configured to be supported in contact with the upper surface of the portion 5.

In addition, as shown in FIGS. 5 and 7, the bottom wall portion 3 has side wall portions 6 and 7 of the lower folding container 1 when the folding containers 1 in the assembled state are stacked (stacked) with each other. When the outer peripheral support portion 32 which is abutted against and supported by the upper side portion and the folding container 1 which is located on the inner peripheral side of the outer peripheral support portion 32 and is configured to be one step lower than the outer peripheral support portion 32 and is installed on the floor surface. It is provided with an inner peripheral support portion 33 that is in contact with the floor surface and is supported. The inner peripheral support portion 33 is inserted inside the lower folding container 1 when the folded containers 1 in the assembled state are stacked, and the inner surfaces of the side wall portions 6 and 7 of the lower folding container 1 are inserted. It is configured to be in contact with or in close proximity to.

As shown in FIGS. 6 and 8, when the folding containers 1 in the folded state are stacked, the outer peripheral support portion 32 of the upper folding container 1 is the long side base of the lower folding container 1. Along with being abutted and supported by the upper surface of the portion 4 (folding stacking protrusion 12 and auxiliary convex portion 13), the inner peripheral support portion 33 of the upper folding container 1 is relative to the lower folding container 1. It is inserted between the pair of long side base portions 4 (folding step stacking protrusions 12), and is in contact with or abuts on the inner surface of the folding step stacking protrusions 12 and the inner surface of the auxiliary convex portion 13. It is configured to be in close proximity.

Further, as shown in FIG. 7 and the like, the lower surface side of the bottom wall portion 3 has a configuration in which ribs are provided in a grid pattern on both the inner peripheral support portion 33 and the outer peripheral support portion 32. In the present embodiment, an upper side convex portion 34 (see FIG. 1 and the like) is provided so as to project upward in the vicinity of the central portion in the lateral width direction of the upper side portion of the long side side wall portion 6, and the stage of the folding container 1 in the assembled state is provided. In the stacked state, the upper convex portion 34 of the lower folding container 1 is inserted inside the grid-like rib provided on the lower surface side of the bottom wall portion 3 (outer peripheral support portion 32) of the upper folding container 1. (It is in a locked state).

By the way, as shown in FIGS. 1, 3, 4, 4 and the like, the bottom wall component 2 has a concave handle portion that opens downward and outward at a position below each short side base portion 5. 41 is provided. The handle portion 41 of the present embodiment is provided in a range including the central portion in the lateral width direction of the bottom wall constituent portion 2 (the central portion in the extending direction of the short side base portion 5). That is, in the present embodiment, of the lower surface of the bottom wall constituent portion 2 (outer peripheral support portion 32 of the bottom wall portion 3), the portion corresponding to the handle portion 41 is more than the other portion on the lower surface of the bottom wall constituent portion 2. Is also located above. Therefore, when the folding container 1 is carried from the state where the folding container 1 is installed on the floor surface or the like or the folding container 1 is stacked, the bottom wall constituent portion 2 is carried through the handle portion 41. The folding container 1 can be lifted by hanging a fingertip on the lower surface side of the container. As described above, ribs are provided in a grid pattern on the lower surface side of the bottom wall portion 3 (outer peripheral support portion 32), and the fingertips are placed inside the grid-like ribs via the handle portion 41. It is possible to lift the folding container 1 by grasping the lower surface side of the bottom wall component 2 in such a way that it can be inserted.

Further, the bottom wall component 2 is provided with a reinforcing convex portion 42 protruding upward from the short side base portion 5 at a position above the range in which the handle portion 41 is provided. The reinforcing convex portion 42 has a configuration in which the lower surface of the bottom wall constituent portion 2 is projected upward by the same length as the lower surface of the bottom wall constituent portion 2 is displaced upward in the handle portion 41. As a result, the thickness (vertical width) of the portion of the bottom wall constituent portion 2 corresponding to the short side base portion 5 is almost the same in all the portions. Further, as shown in FIGS. 1, 7, and the like, in the present embodiment, the lower side portion of the short side side wall portion 7 is provided with respect to the lower side portion of the short side side side wall portion 7 in response to the provision of the reinforcing convex portion 42 on the short side side base portion 5. An allowable recess 43 into which the reinforcing convex portion 42 is inserted is provided when the side wall portion 7 on the short side is in the upright position. As a result, there is almost no gap between the short side side wall portion 7 which is the standing position and the short side base portion 5 so as to penetrate in the thickness direction of the short side side wall portion 7, and the standing position. The lower side portion including the portion corresponding to the allowable recess 43 of the short side side side wall portion 7 is supported by being in contact with the upper surface (including the reinforcing convex portion 42) of the short side side base portion 5. ..

As shown in FIG. 2, the vertical width of the long side side wall portion 6 of the present embodiment (the vertical width excluding the long side hinge portion 10) is 1 of the distance between the pair of long side base portions 4. It is less than / 4, and in the folded state of the folding container 1, a range exceeding 1/2 of the upper surface of the short side base portion 5 is exposed upward. In particular, in the exposed range, the reinforcing convex portion 42 is provided in the range including the central portion of the short side base portion 5, and the short side bearing portion 9 is adjacent to both sides of the reinforcing convex portion 42. Is provided. In addition, as shown in FIG. 4, in the present embodiment, the short side bearing portion 9 is also provided between each locking accommodating portion 31 and both ends of the short side base portion 5.

Further, as shown in FIG. 1 and the like, in the assembled state of the folding container 1, the upper side portion of the short side side wall portion 7 is opened upward at the upper position of the range where the handle portion 41 is provided. A concave handle assisting portion 44 that penetrates the side wall portion 7 on the short side in the thickness direction is provided. That is, in the present embodiment, among the upper side portions of the short side side wall portion 7, the portion corresponding to the handle assist portion 44 is located below the other portions of the upper side portion of the short side side wall portion 7. It has become. In addition, the vertical width of the handle auxiliary portion 44 of the present embodiment is shorter than the vertical width of the handle portion 41. The handle assisting portion 44 of the present embodiment is provided so as to penetrate in the thickness direction of the short side side wall portion 7, but for example, the wall portion constituting the inner surface of the short side side side wall portion 7 is provided. It is also present on the inner side of the folding container 1 of the handle assisting portion 44, and the handle assisting portion 44 may be configured to open upward and outward but not inward.

In addition, since the operation portion 28 of the connecting member 24 mounted on the outer surface side of the short side side wall portion 7 is arranged at the center portion in the lateral width direction of the short side side wall portion 7, the folding container 1 is assembled. In the state, the operation unit 28 and the handle unit 41 are arranged vertically.

As described in detail above, according to the present embodiment, the bottom wall component 2 has a concave handle portion 41 that opens downward and outward at a position below the pair of short side base portions 5 facing each other. It is provided. Therefore, when the folding container 1 is carried from the state where the folding container 1 is installed on the floor surface or the like or the folding container 1 is stacked, the bottom wall constituent portion 2 is carried through the handle portion 41. The folding container 1 can be lifted by hanging a fingertip on the lower surface side of the container. Further, when the folding container 1 is installed on the floor surface or the folding container 1 is stacked, the finger supporting the lower surface side of the folding container 1 comes into contact with the floor surface or the like via the handle portion 41. It is possible to prevent such a situation. Therefore, even if the handle portion is not provided on the short side side wall portion 7 due to the low height of the folding container 1 in the assembled state, the handle portion 41 is provided on the bottom wall component portion 2. , The folding container 1 can be carried relatively easily.

Depending on the height of the folding container 1 in the assembled state, a thumb may be hung on the upper side portion of the short side side wall portion 7, and another finger may be hung on the lower surface side of the bottom wall component portion 2 in the handle portion 41. Therefore, the folding container 1 can be gripped, and the folding container 1 can be stably carried. Further, even when the folded containers 1 in the assembled state are stacked, the upper side portion of the short side side wall portion 7 of the lower folding container 1 and the lower surface side of the bottom wall component portion 2 of the lower folding container 1 Since it is possible to hang a finger on the (handle portion 41), it is possible to improve workability, in particular, when carrying a plurality of folding containers 1 stacked in an assembled state at one time.

Further, by providing the reinforcing convex portion 42 corresponding to the range in which the handle portion 41 is provided, it is possible to prevent the strength of the portion of the bottom wall constituent portion 2 where the handle portion 41 is provided from being lowered. .. Therefore, it is effective that the handle portion 41 is damaged or deformed because a relatively large force is applied when the folding container 1 is carried by putting a hand on the handle portion 41. Can be deterred. Further, the vertical width of the portion of the bottom wall constituent portion 2 where the handle portion 41 is provided can be secured to some extent. For example, when the folded container 1 is carried in the folded state of the folded container 1, the bottom wall constituent portion Since the vertical width of 2 is too small, the bottom wall component 2 is gripped (the lower surface side of the bottom wall component 2 (outer peripheral support 32) is supported by the index finger, middle finger, ring finger, etc. via the handle 41). At the same time, it becomes difficult to support the upper surface side of the bottom wall component 2 (short side base portion 5) around the thumb or the base of the thumb and hold the bottom wall component 2 up and down). It is possible to avoid such a situation.

In addition, the handle portion 41 is provided at a position where the folding container 1 does not vertically overlap with the long side side wall portion 6 in the laid position in the folded state. Therefore, for example, the auxiliary convex portion 13 to be provided above the range in which the handle portion 41 is provided is provided over the entire longitudinal direction of the short side base portion 5 (the long side side as the laying position). Compared with the case where the side wall portion 6 overlaps with the auxiliary convex portion 13), the height position of the long side side wall portion 6 which is the laid position can be lowered as much as possible. Further, the handle portion 41 is provided in a range including the central portion of the bottom wall constituent portion 2 in the lateral width direction, and the folding container 1 can be carried in a well-balanced manner via the handle portion 41.

For example, when a handle portion is to be provided on the short side side wall portion 7, it is necessary to secure a vertical width into which a fingertip can be inserted in the handle portion, and the short side side wall portion 7 is held. It is necessary to provide a reinforcing structure around the hand. In this respect, as in the present embodiment, by providing the handle portion 41 in the bottom wall component portion 2, the short side side wall portion 7 has a reinforcing structure having a relatively high strength comparable to that of the peripheral portion of the handle portion 41. It is not necessary to provide. That is, although the allowable recess 43 and the handle assisting portion 44 are provided in the short side side wall portion 7, the reinforcing structure of the peripheral portion thereof is compared with that of the peripheral portion of the handle portion 41. Sufficient strength can be secured even with a relatively simple one. Therefore, the space used for the short side side wall portion 7 for providing the handle portion 41 on the short side surface of the folding container 1 can be made as small as possible, and even if the vertical width of the short side side wall portion 7 is small, A sufficient space for mounting the connecting member 24 can be secured.

Further, in the present embodiment, in the assembled state of the folding container 1, the upper side portion of the short side side wall portion 7 is opened upward at the upper position of the range where the handle portion 41 is provided, and the short side side is opened. A concave handle assisting portion 44 that penetrates the side wall portion 7 in the thickness direction is provided. Therefore, when the upper folding container 1 is sequentially carried from the state in which the folding containers 1 in the assembled state are stacked, the handle portion 41 of the upper folding container 1 and the handle of the lower folding container 1 are carried. Insert a fingertip between the upper folding container 1 and the lower folding container 1 via the auxiliary portion 44, and hang a finger on the lower surface side of the bottom wall constituent portion 2 of the upper folding container 1 to lift it. Can be done. Therefore, it is possible to facilitate the work of lifting the folding containers 1 in the stacked state in the assembled state, as compared with the case where the handle assisting portion 44 is not provided. Further, when stacking the folded containers 1 in the assembled state, the finger supporting the lower surface side of the folded container 1 via the handle portion 41 strongly contacts the folded container 1 on the lower side. It is possible to prevent the resulting trouble more reliably.

Further, in the present embodiment, the connecting member 24 is attached to the outer surface side of each short side side wall portion 7 which is set to the upright position after the long side side side wall portion 6 is set to the upright position when the folding container 1 is in the assembled state. The connecting member 24 (connecting member main body 26) is in a locked state at both ends thereof with respect to the pair of long side side wall portions 6 (locking protrusions (not shown)), and the central portion of the connecting member 24. By operating the operation unit 28 provided in the above, the locked states of both ends of the connecting member 24 are released at once. Further, as described above, the bottom wall constituent portion 2 is provided with a handle portion 41 at a lower position in a range including the central portion in the extending direction of the short side base portion 5. Therefore, even if the height of the folding container 1 in the assembled state is low and it is difficult to suitably provide the handle portion with respect to the short side side wall portion 7 to which the connecting member 24 is mounted, the handle portion may be difficult to provide. With the handle portion 41 provided at the lower position, a hand is placed on the same side surface (short side surface in this example) as the surface provided with the connecting member 24 among the four side surfaces constituting the outer peripheral surface of the folding container 1. The folding container 1 can be carried relatively easily.

In particular, in the assembled state of the folding container 1, the operating portion 27 of the connecting member 24 and the handle portion 41 are arranged vertically on the short side surface of the folding container 1. Therefore, the operation unit 28 is operated to change the state of the connecting member 24 to change the form (folded state / assembled state) of the folding container 1, and the folding container 1 is raised and lowered by holding the handle portion 41. Of the work (lifting and installing), when moving from one to the other, the worker can only move the position of the hand up and down (the worker moves or turns the folding container 1). You do not have to change the relative direction, such as moving it). Therefore, the series of operations can be performed relatively smoothly and continuously, and the workability can be dramatically improved.

The content is not limited to the description of the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modification examples not illustrated below are also possible.

(A) In the above embodiment, in the bottom wall constituent portion 2, the handle portion 41 is provided at a position below the pair of short side side wall portions 7, but instead of or in addition to such a configuration, a pair. A handle portion may be provided at a position below the side wall portion 6 on the long side of the above. Further, the range of formation of the handle portion 41 at the lower position of the side wall portion 7 on the short side is not particularly limited, but from the viewpoint of balance when carrying the folding container 1, the short side of the bottom wall constituent portion 2 It is desirable to provide it in the range including the central part of the side part. Further, from the viewpoint of keeping the height of the folded container 1 in the folded state low, it is desirable that the reinforcing convex portion 42 is provided at a position that does not overlap vertically with the long side side wall portion 6 which is the laid position. It is also possible to omit the handle assisting portion 44 provided on the upper side portion of the short side side wall portion 7.

(B) In the above embodiment, the long side base portion 4 is higher than the short side base portion 5, and when the folded container 1 in the folded state is put into the assembled state, the pair of long side side wall portions 6 stand upright. The short side side wall portion 7 can be set to the upright position by setting the position, but the short side side wall portion 7 is configured to be higher than the long side side side wall portion 6 and a pair of short side side walls. By setting the side wall portion 7 in the upright position, the long side side side wall portion 6 may be set in the upright position.

(C) In the above embodiment, the configuration of the connecting member 24 that connects between the long side side wall portion 6 in the upright position and the short side side wall portion 7 in the upright position is not particularly limited. , The design can be changed as appropriate. For example, a connecting member provided with a locking piece portion that appears and disappears laterally from both side portions of the short side side wall portion 7 based on the operation of the operation portion is configured to be mounted on the outer surface side of the short side side wall portion 7. You may. Further, for example, it is possible to omit the connecting member 24 which is configured as a separate body from the short side side wall portion 7, and in that case, integrally with the wall portion constituting the inner surface of the long side side side wall portion 6. An elastic piece that is configured and elastically deformable in the thickness direction of the side wall portion 6 on the long side, and a side wall portion 7 on the short side side that protrudes from the tip of the elastic piece to the inside of the folding container 1 in the assembled state of the folding container 1. An elastic locking piece may be provided that is in contact with or close to the inner surface and has a locking projection that regulates the inward displacement of the short side side wall portion 7.

(D) Although the folding container 1 in the above embodiment is made of polypropylene, it may be made of other resin materials such as polyethylene, PET, and polyamide.

1 ... Folding container, 2 ... Bottom wall component, 3 ... Bottom wall, 4 ... Long side base, 5 ... Short side base, 6 ... Long side side wall, 7 ... Short side side wall, 24 ... Connecting member, 26 ... Connecting member main body, 28 ... Operation part, 41 ... Handle part, 42 ... Reinforcing convex part, 44 ... Handle auxiliary part.

Claims (5)

A bottom wall component having a bottom wall portion having a substantially rectangular shape in a plan view and a base portion protruding upward along each side portion of the bottom wall portion.
With respect to each base portion of the bottom wall component portion, the standing position erected above each base portion and the laying position laid above the bottom wall portion are rotatably and displaceably connected to each other. In a folding container with a displaced side wall,
The base portion connects the pair of facing first base portions protruding upward from the pair of opposite side sides of the bottom wall portion and the both ends of the pair of first base portions, respectively. A pair of opposite second base portions provided along the side portions of the bottom wall portion are provided.
The bottom wall component is located downward and outward in one or both of the lower positions of the pair of first bases and the lower positions of the pair of second bases. A concave handle portion that opens is provided, and a reinforcing convex portion that protrudes upward from the base portion is provided at a position above the range in which the handle portion is provided.
The second base portion is configured to be lower in height than the first base portion.
When the assembled state in which all the side wall portions are in the upright position is changed to the folded state in which all the side wall portions are in the laying position, the pair of second side wall portions are laid down. In a configuration in which the first side wall portion can be set to the laying position by setting the position.
The handle portion is provided at a position below the second base portion connected to the second side wall portion.
The foldable container is characterized in that the reinforcing convex portion is provided at a position that does not overlap vertically with the first side wall portion that is laid down. The handle portion is configured such that the lower surface of the bottom wall constituent portion is displaced upward.
The folding container according to claim 1, wherein the reinforcing convex portion has a portion extending in parallel with the handle portion, and the length thereof corresponds to the length of the handle portion.
The handle portion is configured such that the lower surface of the bottom wall constituent portion is displaced upward.
The reinforcing convex portion is characterized in that the handle portion is projected upward by the same length as the lower surface of the bottom wall constituent portion is displaced upward. The folding container according to claim 1 or 2. In the assembled state in which all the side wall portions are in the upright position, the upper side portion of the side wall portion is located upward and outward in the range where the handle portion is provided. The folding container according to any one of claims 1 to 3, wherein an opening concave handle assisting portion is provided. The side wall portion includes a pair of first side wall portions connected to each of the first base portions, and a pair of second side wall portions connected to each of the second base portions.
In the pair of second side wall portions, a connected state in which the first side wall portion in the upright position and the second side wall portion in the upright position are connected and the connected state are released. A connecting means that can change the state is attached to the released state.
The pair of first side wall portions is provided with a locked portion that is locked to the connecting means in the connected state.
The bottom wall component is provided with a handle portion at a position below each second base portion connected to the second side wall portion to which the connecting means is mounted.
The second base portion is configured to be lower in height than the first base portion.
When the assembled state in which all the side wall portions are in the upright position is changed to the folded state in which all the side wall portions are in the laying position, the pair of second side wall portions are laid down. In a configuration in which the first side wall portion can be set to the laying position by setting the position.
Each of the connecting means is in a locked state with respect to an operating portion operated when the connecting means is changed from the connected state to the disengaged state and the locked portion of the pair of first side wall portions. A pair of locking portions are provided, and the locked state of the pair of locking portions is released at once by performing an operation on the operating portion.
The folding container according to any one of claims 1 to 4, wherein the operation portion and the handle portion are arranged vertically in the assembled state.

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