JP6193048B2 - Folding container - Google Patents

Description

  The present invention relates to a folding container configured to be folded and stored and transported when not in use.

  The folding container disclosed in Patent Document 1 is configured by combining molded products formed by injection molding or the like, and each of the opposed square plates and the opposed walls standing on the periphery of the bottom wall. A pair of side walls. And it is comprised so that each side wall can be folded on a bottom wall by rotating each side wall inward in the hinge site | part provided in the lower end of each side wall.

  In addition, as disclosed in Patent Document 2, in recent years, a container made of a synthetic resin hollow plate material is also used from the viewpoint of weight reduction and the like. The container of patent document 2 is provided with the bottom wall comprised from the said hollow plate material, and each side wall. And each side wall can be folded up on a bottom wall by rotating each side wall inward by the thin hinge part by the thermal bending and cutting (half cut) provided in each side wall. In addition, a reinforcing member formed by injection molding or the like is attached to the container of Patent Document 2 in order to reinforce the bottom wall and the edge of each side wall.

JP 2009-120227 A JP 2000-118529 A

  By the way, a gripping hole is provided in each of opposite side walls of the conventional folding container. And a folding container can be hold | gripped by grasping between the upper edge of a side wall, and a holding hole, inserting a hand in a holding hole. However, in such a folding container, there is a problem in that when gripping a heavy article inside, the upper edge of the gripping hole bites into the palm and the palm becomes painful.

  The present invention has been made in view of such conventional circumstances, and an object of the present invention is to provide a folding container that can be gripped without feeling pain in the palm even when a heavy article is accommodated therein. It is in.

In order to achieve the above object, a folding container according to claim 1 comprises a square plate-like bottom wall and a pair of first and second side walls facing each other and erected on the periphery of the bottom wall. In the folding container configured to fold the first side wall and the second side wall, the outer surface of the first side wall extends in the width direction of the first side wall and engages with the second side wall. A lock bar that is movable between a restriction position that restricts inward rotation of the first side wall and a release position that allows inward rotation of the first side wall is attached, and the lock bar Is configured to be slidable in the vertical direction between the restriction position located on the uppermost side and the release position on the lower side, and the first side wall has a grasping hole for grasping the folding container. provided, the gripping hole, said lock bar When in the restricting position, it is provided so as to be positioned above the same height or same lower surface and its upper edge the lower surface of the lock bar.

  In the above configuration, since the lock bar is disposed between the upper edge of the first side wall and the gripping hole, the lock bar is gripped together with the upper edge portion of the first side wall when gripping the folding container. Become. At this time, since the upper edge of the grip hole is located at the same height as the lower surface of the lock bar or above the lower surface, the lower surface of the lock bar hits the palm, and the upper edge of the grip hole becomes hard to hit the palm. Yes. Therefore, even when a heavy article is accommodated therein, the upper edge of the gripping hole is prevented from biting into the palm, and the folding container can be gripped without feeling pain in the palm.

In the folding container, the lock bar is configured to be slidable in the vertical direction between the upper restriction position and the lower release position . Therefore, when the folding container is gripped so as to hold the lock bar, the lock bar moves to the lower release position and the rotation restriction is released to the inside of the first side wall. Incorrect release is suppressed.

  According to the folding container of the present invention, even when a heavy article is accommodated inside, it can be gripped without feeling pain in the palm.

The perspective view of the folding container which made one 2nd side wall (long side wall) stand. The perspective view of a folding container. The perspective view of a main-body part. (A), (b) is a perspective view of a 1st engagement member (short side engagement member). FIG. 5 is a sectional view taken along line 5-5 of FIG. (A) is sectional drawing around the notch part of the 1st side wall (short side wall), (b) is sectional drawing around the notch part of the 2nd side wall (long side wall). (A), (b) is a perspective view of the 2nd engagement member (long side engagement member). (A) is a perspective view of a fitting member, (b) is a 8b-8b sectional view taken on the line.

Hereinafter, the folding container of this invention is demonstrated based on drawing.
As shown in FIG. 2, a bottomed box-like folding container 10 (hereinafter simply referred to as a container 10) that opens upward includes a long square plate-like bottom wall 11 and a short side of the bottom wall 11 that faces each other. A pair of short side walls 12 (first side walls) erected along the edges and a pair of long side walls 13 (second side walls) erected along the opposing long side edges of the bottom wall 11 are provided. Yes. As shown in FIG. 1, the container 10 is configured to be foldable by folding a pair of short side walls 12 on the bottom wall 11 and then folding the pair of long side walls 13 on the short side wall 12. Has been.

  As shown in FIG. 3, the container 10 includes a main body portion 10 a made of a synthetic resin hollow plate material having a hollow structure. The main body portion 10a includes a bottom wall portion 11a constituting the bottom wall 11, a short side wall portion 12a (first side wall portion) standing along the short side edge of the bottom wall portion 11a and constituting the short side wall 12, A long side wall portion 13 a (second side wall portion) that is provided along the long side edge of the bottom wall portion 11 a and constitutes the long side wall 13 is provided.

  More specifically, a cross-shaped hollow plate material in which a portion serving as the short side wall portion 12a and a portion serving as the long side wall portion 13a are integrated with the four side edges of the long square portion serving as the bottom wall portion 11a, and the bottom wall portion 11a The bottom wall portion 11a, the short side wall portion 12a, and the long side wall portion 13a are respectively formed by bending in a box shape along the four side edges of the portion. As shown in FIG. 5, the hollow plate material includes a core layer 21 that forms a hollow structure therein, and skin layers 22 and 23 that are bonded to both surfaces of the core layer 21.

  As shown in FIG.1 and FIG.2, the container 10 is comprised by attaching the various members shape | molded separately by injection molding, extrusion molding, etc. with respect to the main-body part 10a. Specifically, the short side engagement member 30 (first engagement member) is attached to the upper portion of the short side wall portion 12a of the main body portion 10a, and the container 10 is formed by the short side wall portion 12a and the short side engagement member 30. A short side wall 12 is formed.

  Further, a long side engagement member 50 (second engagement member) is attached to both side portions of the long side wall portion 13a of the main body portion 10a, and an upper edge frame 60 is attached to an upper portion of the long side wall portion 13a. The short side wall portion 12a, the long side engaging member 50, and the upper edge frame 60 constitute the long side wall 13 of the container 10. Further, the fitting member 70 is attached to the corner of the bottom wall portion 11a of the main body 10a, and the bottom wall 11 of the container 10 is configured by the bottom wall portion 11a and the fitting member 70.

Next, the short side wall 12 will be described.
As shown in FIG. 3, the short side wall portion 12 a constituting the short side wall 12 is formed in a horizontally long rectangular shape, and the insertion protrusion 121 for attaching the short side engaging member 30 to both upper side portions thereof. Are provided.

  As shown in FIG. 4, the short side engaging member 30 constituting the short side wall 12 is a plate-like member having a substantially square shape when viewed from the front. As shown in FIG. 4B, insertion concave portions 31 for inserting the insertion protrusions 121 of the short side wall portion 12 a are provided on both side portions of the lower end surface of the short side engagement member 30.

  As shown in FIG. 4A, engagement concave portions 32 extending in the vertical direction are provided on both side portions on the outer surface side of the short side engagement member 30. In the engagement recess 32, three protrusions 33 protruding in the thickness direction of the short side engagement member 30 are arranged in parallel in the vertical direction.

  In addition, an accommodation recess 34 extending in the left-right direction is provided on the outer surface side of the short side engagement member 30. On the outer surface side of the short-side engagement member 30, the housing recess 34 and the engagement recess 32 are partitioned and formed with a partition wall 35 interposed therebetween. An insertion hole 35 a penetrating the partition wall 35 is formed in a portion of the partition wall 35 positioned above the protrusion 33.

  A lock bar 36 is housed in the housing recess 34 of the short side engagement member 30. The lock bar 36 is a square plate-like member that is arranged to be slidable in the up-down direction within the housing recess 34. Engaging portions 36 a that are inserted into the insertion holes 35 a of the partition wall 35 and project into the engaging recesses 32 are provided on both side end surfaces of the lock bar 36. In addition, a pair of urging plates 36 b that urge the lock bar 36 upward are integrally formed on the lower end surface of the lock bar 36 in the housing recess 34.

  As shown in FIGS. 4 and 5, a gripping hole 37 for inserting a hand when gripping the container 10 is formed through the central portion of the short side engagement member 30. The gripping hole 37 is provided in the housing recess 34 in which the lock bar 36 is housed, and is provided so as to be positioned below the lock bar 36.

  As shown in FIG. 5, the upper edge 37 a of the grip hole 37 is located above the lower surface 36 c of the lock bar 36. Further, the lower surface 36 c of the lock bar 36 is formed in a wave shape, and serves as a gripping surface when gripping the container 10. The thickness of the lower surface 36c of the lock bar 36 is set to be thicker than the thickness of the portion where the gripping hole 37 is provided in the short side engaging member 30.

  As shown in FIGS. 3 and 6 (a), a cut portion 12b extending in the width direction along the lower side of the short side wall portion 12a is provided at the lower portion of the short side wall portion 12a constituting the short side wall 12. . The cut portion 12b is formed from the outer surface side of the short side wall portion 12a, and the skin layer 22 and the core layer located on the outer surface side of the short side wall portion 12a while leaving the skin layer 23 positioned on the inner surface side of the short side wall portion 12a. This is a half cut made by cutting 21. The short side wall portion 12a (short side wall 12) can be folded inward by bending the inner skin layer 23 portion remaining in the cut portion 12b and opening the cut portion 12b. ing. That is, the inner skin layer 23 portion remaining in the cut portion 12b functions as a hinge.

Next, the long side wall 13 will be described.
As shown in FIG. 3, the long side wall portion 13a constituting the long side wall 13 is formed in a horizontally long rectangular shape.

  As shown in FIG. 7, the long-side engagement member 50 is a plate-shaped member having an L-shaped cross section that extends in the vertical direction as a whole, and includes a fixed wall portion 51 fixed to the long side wall portion 13a, And an engaging wall portion 52 that protrudes inwardly (from the side of the short side wall 12) from the side edge of 51. An insertion recess 53 for inserting a side edge of the long side wall portion 13 a is provided on the inner end surface of the fixed wall portion 51. On the lower end surface of the fixed wall portion 51, a pair of rotating shaft portions 54 are provided at a predetermined interval. A shaft body 54 a that protrudes to the side is formed on both sides of the rotating shaft portion 54.

  The engagement wall portion 52 is a portion that engages with the short side engagement member 30 constituting the short side wall 12 in the assembled state, and extends in the vertical direction along the outer edge on the inner surface side of the fixed wall portion 51. Is formed. The engaging wall portion 52 has three engaging holes 55 penetrating vertically through the engaging wall portion 52, and an engaging groove 56 is recessed in the side end surface of the engaging wall portion 52. Yes. An opening 56 a that opens to the inside of the engagement wall portion 52 is formed at the lower portion of the engagement groove 56.

  As shown in FIGS. 1 and 2, the upper edge frame 60 is a bar-shaped member having a U-shaped cross section having a groove on the lower surface side thereof, and the upper edge of the long side wall portion 13a is inserted into the groove. It is being fixed to the long side wall part 13a.

  As shown in FIGS. 3 and 6B, a cut portion 13 b extending in the width direction along the lower side of the long side wall 13 is provided at the lower portion of the long side wall portion 13 a constituting the long side wall 13. The long side wall 13 can be folded inward by bending the inner skin layer 23 portion remaining in the cut portion 13b to open the cut portion 13b.

  Further, the cut portion 13 b of the long side wall 13 is formed at a position higher than the cut portion 12 b of the short side wall 12. Specifically, the cut portion 13 b of the long side wall 13 is formed at a position higher than the thickness of the short side wall 12 from the upper surface of the bottom wall 11. Thereby, when the long side wall 13 is folded, a space S <b> 1 that can accommodate the short side wall 12 is secured between the bottom wall 11 and the long side wall 13.

Next, the bottom wall 11 will be described.
As shown in FIG. 3, the bottom wall portion 11 a constituting the bottom wall 11 is formed in a horizontally long rectangular shape.

  As shown in FIG. 8, the fitting member 70 constituting the bottom wall 11 includes a substantially triangular plate-like lower wall portion 70a and a vertical wall portion 70b erected from the side edge of the lower wall portion 70a on the short side wall 12 side. And a lateral wall portion 70c erected from the side edge of the lower wall portion 70a on the long side wall 13 side. An attachment recess 71 for attaching a corner portion of the bottom wall portion 11a is provided on the lower surface of the lower wall portion 70a.

  The upper end surface of the horizontal wall portion 70c is formed in a horizontal plane, and serves as a mounting surface on which the lower surface of the long side engaging member 50 is mounted. A pair of bearing portions 72 are recessed in a substantially square hole shape at a predetermined interval on the upper end surface of the horizontal wall portion 70c. The bearing portion 72 is a portion on which the rotation shaft portion 54 of the long side engaging member 50 is pivotally supported, and forms a hinge together with the rotation shaft portion 54.

  As shown in FIG. 8 (b), the inner end of the side end surface of the bearing 72 has an inclined surface that inclines downward from the inside to the outside, and a substantially triangular prism-like engagement with the lower surface side formed flat. A stop projection 73 is provided to project. The rotating shaft portion 54 is inserted into the bearing portion 72 from above, and the shaft body 54a is accommodated in the space S2 between the lower surface of the locking projection 73 and the bottom surface of the bearing portion 72 in the bearing portion 72. By doing so, it is pivotally supported with respect to the bearing portion 72.

Next, a method for assembling the container 10 of this embodiment will be described.
When the container 10 is not in use, such as during storage, the side walls are folded. Specifically, the short side wall 12 is folded inward on the bottom wall 11, and the long side wall 13 is folded on the short side wall 12. Is folded inward. And the container 10 is made into the state assembled in the box shape by the operator as needed.

  As shown in FIG. 1, when assembling the container 10 in a folded state into a box shape, first, the long side wall 13 is rotated 90 degrees upward. At this time, in the central part of the long side wall 13, the long side wall part 13a rotates with the inner skin layer 23 portion remaining in the cut portion 13b as a rotation axis. Further, at both side portions of the long side wall 13, the long side engagement member 50 rotates with respect to the fitting member 70 with the center of the shaft body 54 a in the rotation shaft portion 54 of the long side engagement member 50 as the rotation axis. Move. Then, in a state where the long side wall 13 is erected by being rotated 90 degrees upward, the long side engaging member 50 is placed on the lateral wall portion 70 c of the fitting member 70, whereby the long side wall 13. The standing state is maintained.

  After both the long side walls 13 are erected, the short side wall 12 is rotated 90 degrees upward with the inner skin layer 23 portion remaining in the cut portion 12b of the short side wall 12 as a rotation axis. At this time, the protrusion 33 of the short side engagement member 30 constituting the adjacent short side wall 12 is located inside the engagement hole 55 of the engagement wall portion 52 of the long side engagement member 50 constituting the long side wall 13. Is inserted from.

  At the same time, by operating the lock bar 36 of the short side engagement member 30 to slide downward, the engagement portion 36 a of the lock bar 36 is opened in the engagement groove 56 of the engagement wall portion 52. It is inserted through 56a. When the lock bar 36 is returned upward by the urging force of the urging plate 36 b, the engaging portion 36 a of the lock bar 36 moves upward in the engaging groove 56. Thereby, the short side wall 12 is in a locked state in which the inward rotation is restricted, and the long side wall 13 and the short side wall 12 are fixed to each other.

In addition, what is necessary is just to perform said operation in reverse order, when folding the container 10 in the state assembled in the box shape.
As described above, the lock bar 36 is constantly urged by the urging plate 36 b and is located on the upper side in the housing recess 34. This position becomes the restriction position of the lock bar 36. The position where the lock bar 36 is pushed down to the lower side in the housing recess 34 against the urging force of the urging plate 36b is the release position.

  In the assembled state, when the lock bar 36 is positioned at the restriction position, the engagement portion 36a of the lock bar 36 is positioned at the upper portion in the engagement groove 56 of the engagement wall portion 52 of the short side engagement member 30. An engagement relationship with the engagement groove 56 is established, and the inward rotation of the short side wall 12 is restricted. On the other hand, when the lock bar 36 is pushed down and positioned at the release position, the engagement portion 36a of the lock bar 36 is positioned at the lower portion in the engagement groove 56, that is, at a position facing the opening 56a. The engagement relationship is released. As a result, the inward rotation of the short side wall 12 is allowed.

Next, the operation of this embodiment will be described.
The container 10 of the present embodiment grips between the upper edge of the short side wall 12 and the gripping hole 37 while inserting a hand into the gripping hole 37 provided in the short side engaging member 30 constituting the short side wall 12. The container 10 can be lifted while being gripped. Here, as shown in FIG. 5, the lock bar 36 is disposed between the upper edge 30 a of the short side engagement member 30 and the gripping hole 37. Therefore, when the container 10 is gripped as described above, the lock bar 36 is gripped together with the upper edge 30a of the short side engagement member 30.

  At this time, since the upper edge 37a of the gripping hole 37 is located above the lower surface 36c of the lock bar 36, the lower surface 36c of the lock bar 36 hits the palm, and the upper edge 37a of the gripping hole 37 is hard to hit the palm. ing. Therefore, even when a heavy article is accommodated therein, the upper edge 37a of the gripping hole 37 is prevented from biting into the hand, and the container 10 can be gripped without feeling pain in the palm.

Next, the effect of this embodiment will be described.
(1) The container 10 includes a square plate-like bottom wall 11 and a pair of opposing short side walls 12 and long side walls 13 that are provided upright on the periphery of the bottom wall 11, and folds the short side walls 12 and the long side walls 13. It is configured to be possible. The outer surface of the short side wall 12 extends in the width direction of the short side wall 12 and engages with the long side wall 13 to restrict the inward rotation of the short side wall 12 and to the inner side of the short side wall 12. A lock bar 36 is attached that is movable between a release position that allows rotation thereof. The short side wall 12 is provided with a gripping hole 37 for gripping the container 10, and the gripping hole 37 is provided such that its upper edge 37 a is located above the lower surface 36 c of the lock bar 36.

According to the above configuration, even when a heavy article is accommodated therein, the upper edge of the gripping hole 37 is prevented from biting into the hand, and the container 10 can be easily gripped.
(2) The lock bar 36 is configured to be slidable in the vertical direction between the upper restriction position and the lower release position.

  According to the above configuration, when the container 10 is gripped so as to grip the lock bar 36, the lock bar 36 is further controlled by the force of gripping the lock bar 36 in addition to the biasing force of the biasing plate 36b. Will be energized. Therefore, the lock bar 36 is moved to the lower release position and the rotation restriction is released to the inside of the short side wall 12, that is, the erroneous release of the lock is suppressed.

  (3) The lower surface 36c of the lock bar 36 is formed in a wave shape. According to the above configuration, when a finger is placed on the lower surface 36c of the lock bar 36 and gripped shallowly, the contact area between the lower surface 36c of the lock bar 36 and the finger increases, and the container 10 is gripped more easily. be able to.

  In addition, the said embodiment can also be changed and actualized as follows. Moreover, it is also possible to change the said embodiment like the structure of the combination of the following modification example mutually.

  The upper edge 37a of the grip hole 37 may be formed at the same height as the lower surface 36c of the lock bar 36. Further, the shape of the gripping hole 37 is not particularly limited, and the upper edge 37a may be formed so as to be located at the same height as the lower surface 36c of the lock bar 36 or above the lower surface 36c.

  The short side engagement member 30 may be provided with a grip cover for closing the gripping hole 37 and preventing spillage from the gripping hole 37. The grip cover is a member configured to be elastically deformable. When the grip hole 37 is gripped, the grip cover is bent inward so that the hand can be inserted into the grip hole 37.

-The shape of the lower surface 36c of the lock bar 36 is not particularly limited. For example, it may be a curved shape that curves in the thickness direction.
-The shape of the lock bar 36 is not particularly limited. For example, a handle may be provided on the outer surface of the lock bar 36.

  The engagement configuration between the lock bar 36 and the long side engagement member 50 for restricting the inward rotation of the short side wall 12 is not limited to the configuration of the above embodiment, and is publicly known. These engagement configurations can be applied as appropriate.

  The movement direction of the lock bar 36 that can be moved between the restriction position and the release position is not limited to the vertical direction. For example, it may be configured to move from the restriction position to the release position or from the release position to the restriction position by moving in the left-right direction (width direction of the side wall).

-The engagement structure of the short side engagement member 30 and the long side engagement member 50 is not specifically limited, What is necessary is just a structure where adjacent side walls are connected when assembled in a box shape.
-The hollow board material which comprises the main-body part 10a is not limited to what is comprised from the core layer 21 and the skin layers 22 and 23. FIG. For example, it may be a hollow plate material made of an extruded product having a harmonica cross section.

  -The folding structure of the container 10 is not limited to the structure of the said embodiment. For example, the short side wall 12 and the long side wall 13 may be foldable by rotating and deploying a part or all of the short side wall 12 and the long side wall 13 outward.

  When the container 10 is gripped so as to hold the lock bar 36, the lock part may be pulled toward the upper edge of the short side wall, that is, the restriction position side by the operator's hand.

  -In the said embodiment, although a part of container 10 was comprised by the hollow plate material, like the container of patent document 1, it is a container comprised combining the molded product shape | molded by injection molding etc. There may be.

-The length of each side wall is not particularly limited. For example, the long side wall 13 may be the first side wall and the short side wall 12 may be the second side wall.
Next, the technical idea that can be grasped from the embodiment and the modified examples will be described.

(A) The folding container in which a gripping surface is provided on the lower surface of the lock bar, and the gripping surface is formed wider than the side wall.
(B) The folding container in which the gripping surface is formed in a wave shape.

  (C) The first side wall includes a first side wall portion formed of a hollow plate made of a synthetic resin having a hollow structure, and first engaging members attached to both side portions of the first side wall portion, The second side wall is attached to the second side wall part formed by the hollow plate member and both side parts of the first side wall part, and is engaged with the first engagement member in the assembled state, The folding container, comprising: a second engagement member that fixes the second side wall, wherein the lock bar and the gripping hole are provided in the first engagement member.

  DESCRIPTION OF SYMBOLS 10 ... Folding container, 11 ... Bottom wall, 12 ... Short side wall (1st side wall), 13 ... Long side wall (2nd side wall), 30 ... Short side engaging member (1st engaging member), 36 ... Lock bar, 36c ... lower surface, 37 ... gripping hole, 37a ... upper edge, 50 ... long side engaging member (second engaging member), 70 ... fitting member.

Claims (1)

Folding comprising a square plate-like bottom wall and a pair of opposing first and second side walls standing on the periphery of the bottom wall, the first side wall and the second side wall being foldable In the container
The outer surface of the first side wall extends in the width direction of the first side wall, engages with the second side wall and restricts the inward rotation of the first side wall, and the first side A lock bar that can move between the release position that allows inward rotation of the side wall is attached,
The lock bar is configured to be slidable in the vertical direction between the restriction position located on the uppermost side and the release position on the lower side,
The first side wall is provided with a gripping hole for gripping the folding container,
The gripping hole is provided such that when the lock bar is in the restricting position, an upper edge thereof is provided at the same height as the lower surface of the lock bar or above the lower surface. Folding container.