JP2019094101A - Folded container - Google Patents

Abstract

To provide a folded container that can stabilize a state of connection of a side wall part at a rising position and a bottom wall constituting part, while suppressing a gap from being formed on an inside surface constituting a storage space.SOLUTION: In a folded container 1, hook parts 23 of long side-side bearing parts 8 pivotally supporting a side wall part 6 at a long side-side of the container comprise: assembly-time lifting-up preventing blocks 55 that nearly contact upper sites of shaft parts 17 of long side-side hinge parts 15 when the folded container 1 is being assembled; and folding-time lifting-up preventing blocks 56, positioned above the assembly-time lifting-up preventing blocks 55, which nearly contact the upper site of the shaft part 17 of an upper side wall part 6 at the long side-side of a pair of side wall parts 6 at the long side-sides when the folding container 1 is being folded. The hook parts 23 protrude from regulating wall parts 29, which regulate displacement of the shaft parts 17 inserted into long side-side pivotally-supporting parts 22 toward an inner periphery side of a bottom wall part 3, toward an outer periphery of the bottom wall part 3, and the assembly-time lifting-up preventing blocks 55 are connected to the folding-time lifting-up preventing blocks 56.SELECTED DRAWING: Figure 12

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a folding container used for carrying articles and the like.

  Heretofore, as a container used for transporting articles etc., a bottom wall structure portion comprising a substantially rectangular bottom wall portion and a base portion projecting upward along each side of the bottom wall portion. And a side wall portion rotatably connected to each base portion, which can be assembled in a box shape opening upward, and can be folded by folding each side wall portion above the bottom wall portion The container is known. Further, each side wall portion includes a hinge portion including a hinge main body protruding downward from the lower side portion of the side wall portion, and a shaft portion protruding laterally from the lower portion of the side surface of the hinge main body. On the other hand, each base portion is open on the upper side and the inner peripheral side of the bottom wall portion, and the insertion portion into which the hinge main body can be inserted and the shaft portion can be inserted. A bearing portion is provided that includes a shaft support portion that restricts displacement toward the inner circumferential side and that allows rotational displacement of the shaft portion.

  By the way, when a folding container is made into a folded state, while a pair of side wall parts which counter are piled up and down, there are some which are constituted so that the pair of side wall parts may extend in a substantially horizontal direction, respectively. With regard to the folding container, the shaft portion of the hinge portion can be folded at the bearing portion of the bearing portion so that the folding container can be folded even if either of the pair of opposite side wall portions is first folded to the bottom wall portion side. It is configured to slide up and down. For this reason, when grasping and lifting the side wall of the folded container in the assembled state, there is a concern that the side wall may be displaced upward relative to the bottom wall configuration.

  On the other hand, apart from the shaft portion with respect to the side surface of the hinge main body, there is provided a floating prevention block projecting laterally from a position above the shaft portion, and the side wall portion is above the base portion with respect to the bearing portion. There is a technique of providing a hook portion in contact with or close to the upper surface side of the rising prevention block when the standing position is set up (see, for example, Patent Document 1). By using this technique, when the side wall portion is at the upright position, the side wall portion can be prevented from being displaced relative to the bottom wall forming portion upward.

JP, 2006-188272, A

  By the way, when lifting the folding container by grasping the side wall, there is a concern that the load may be concentrated on the hook, and for example, the folding container accommodates relatively heavy articles. There is a concern that the hook portion may be damaged, for example, when the folding container is rapidly lifted. In addition, when the side wall portion is in the upright position, it is necessary to insert the floating prevention block into the bearing portion, so the side edge portion of the opening portion on the inner peripheral side of the bottom wall portion of the bearing portion It has a step-like shape. For this reason, a gap is easily formed between the side edge of the opening of the bearing and the hinge of the side wall at the standing position, and due to this, the article contained in the folding container is There is a concern that it may cause a situation such as getting caught in a gap.

  The present invention has been made to solve the above-described problems and the like, and an object thereof is to stand up while suppressing the formation of a gap on the inner side surface which constitutes the inner accommodation space in the assembled state. An object of the present invention is to provide a foldable container which can achieve stabilization of the connection between the side wall portion in the position and the bottom wall component.

  In the following, each means suitable for solving the above object and the like will be described by item. In addition, specific effects and the like are added to the corresponding means as needed.

Means 1. A bottom wall portion having a bottom wall portion having a substantially rectangular shape in plan view; and a base portion protruding upward along each side of the bottom wall portion;
For each base portion of the bottom wall configuration portion, it is connected so as to be capable of rotational displacement between an upright position erected above the each base portion and a lying position to be laid above the bottom wall portion A folded container comprising the
Each side wall portion includes a hinge body projecting downward from the lower side portion of the side wall portion, and a shaft portion projecting laterally from a lower portion of the side surface of the hinge body in the lateral width direction of the side wall portion. Equipped
Each base portion is open at the upper side and the inner peripheral side of the bottom wall portion, and an insertion portion capable of inserting the hinge main body and the shaft portion are configured to be insertable, and the bottom wall of the shaft portion And a bearing portion for restricting the displacement of the portion to the inner peripheral side and allowing the rotational displacement of the shaft portion.
The bearing portion includes a hook portion that restricts upward displacement of the shaft portion inserted into the shaft support portion,
The side wall portions face each other in the assembled state of the folding container in which all the side wall portions are in the standing position, and in the folded state of the folding container in which all the side wall portions are in the lying position. And a pair of stacked side wall portions extending in a substantially horizontal direction, and overlapping on the upper side,
The hook portion of the bearing portion pivotally supporting the hinge portion of the laminated side wall portion
When the folding container is in the assembled state, an assembly lifting prevention block located above the shaft and in contact with or in proximity to the shaft,
The assembly is located above the lifting prevention block at the time of assembly, and when the folding container is in the folded state, the folding container is located above the shaft of the upper stack side wall portion of the pair of stack side wall portions and the shaft portion It has an abutment or close-up lifting prevention block,
The lifting prevention block during assembly and the lifting prevention block during folding are from the restriction wall portion for restricting the displacement of the bottom wall portion of the shaft portion inserted into the shaft support portion to the inner wall portion. The folding container is characterized in that it protrudes to the outer peripheral side of the container and the lifting prevention block at the time of assembly is connected to the lifting prevention block at the time of folding.

  Of the pair of laminated side wall portions, when the folded container is brought into the folded state, one of the laminated side wall portions which is first displaced from the standing position to the lying position goes to the lying position without changing the vertical position of the shaft. While the other stacked side wall portion is displaced from the standing position to the lying position, the shaft portion needs to be displaced upward. That is, the shaft portion of the laminated side wall portion is configured to be allowed to be displaced in the vertical direction while maintaining the state of being inserted into the shaft support portion.

  Here, according to the means 1, the hook portion of the bearing portion for supporting the hinge portion of the laminated side wall portion does not come off from the support portion even if the shaft portion inserted in the support portion is relatively displaced upward In addition to having the function of making it possible to have the function of preventing the relative displacement of the shaft portion of the laminated side wall portion relative to the bearing portion when the folding container is put in the assembled state, . For this reason, the folding container can be prevented while the axial portion of the laminated side wall portion is prevented from being pulled upward from the bearing portion (axial support portion) when the folded state of the folding container or the laminated side wall portion is displaced to the upright position. In the assembled state, when the stack side wall portion is grasped and the folding container is lifted, the situation where the stack side wall portion is displaced relative to the bottom wall configuration portion upward can be prevented. Therefore, stabilization etc. of the connection state of the (stacked) side wall portion at the standing position and the bottom wall configuration portion can be achieved.

  Further, the lifting prevention block at folding is disposed above the lifting prevention block at assembling, and the lifting preventing block at folding and the lifting prevention block at assembly are connected. For this reason, the lifting prevention block at the time of folding and the lifting prevention block at the time of assembly will mutually strengthen each other, for example, when the stacked side wall portion in the standing position is lifted, the lifting prevention block at the assembly is above In cooperation with the anti-lifting block located at the bottom of the seat, it is possible to receive an additional force from the shaft. Therefore, deformation, damage and the like of the lifting prevention block at the time of folding and the lifting prevention block at the time of assembly can be suppressed, and the durability can be improved.

  In addition, the lifting prevention block at the time of folding and the lifting prevention block at the time of assembly are disposed at the top and bottom, and the shaft portion is on the lower side of the lifting prevention block at the time of folding and the lifting prevention block during assembly. It is locked at the time of folding and assembly. Therefore, for example, when the laminated side wall portion is at the upright position separately from the shaft portion, the hinge portion is provided with a projection which is inserted into the bearing portion and engaged with the lifting prevention block at the time of assembly. As in the configuration, it is possible to avoid a situation in which the side edge portion of the opening on the inner peripheral side of the bottom wall portion in the bearing portion is stepped in order to make the bearing portion receive the protrusion. Therefore, a gap is easily formed between the side edge of the opening of the bearing and the hinge of the laminated side wall at the standing position, and the space is accommodated in the folding container. It is possible to prevent a situation in which the stored item is caught in the gap or the like.

Means 2. The folding-up lifting prevention block protrudes to the outer peripheral side of the bottom wall portion with respect to the assembly lifting-up prevention block,
The connection edge which is the outer edge of the assembly lifting prevention block extending between the outer end of the lower surface of the assembly lifting prevention block and the inner end of the lower surface of the folding prevention block downward. The folding container according to the means 1 is characterized in that it is inclined toward the inner peripheral side of the bottom wall portion.

  Among the pair of laminated side wall portions, the shaft portion of the laminated side wall portion positioned on the upper side in the folded state of the folded container rotates downward while the folded container is put into the assembled state with the laminated side wall portion as the erected position. Displace. At this time, according to the means 2, the communication side portion extending between the lower surface (locking surface) of the lifting prevention block at folding and the lower surface (locking surface) of the lifting prevention block at assembly is provided. The shaft portion is relatively smoothly moved to the lower surface of the lifting prevention block during assembly while being guided by the connection side. Therefore, the improvement of the assembly operativity of a folding container, etc. can be aimed at.

Means 3. The axial portion of the laminated side wall portion protrudes sideways from the lower end portion of the hinge main body or a portion in the vicinity thereof in the state where the laminated side wall portion is in the standing position, and extends in the thickness direction of the laminated side wall portion And a vertical block projecting upward from a portion of the upper surface of the horizontal block on the inner surface side of the stacked side wall portion,
When the folding container is put into the assembled state, the upper end of the vertical block of the laminated side wall portion abuts or is close to the lower surface of the lifting prevention block during the assembling;
When the folding container is brought into the folded state, the upward facing surface of the vertical block of the stacked side wall portion, which is positioned above the lying position, is prevented from being lifted up during the folding. In contact with or close to the lower surface of the block,
The upper surface of the horizontal block facing upward when the stacked side wall portion is at the standing position in the horizontal block is located on the outer peripheral side of the bottom wall portion when the stacked side wall portion is at the standing position. The foldable container according to the means 1 or 2, characterized in that it is inclined downward, and the laminated side wall part is inclined upward toward the outer peripheral side of the bottom wall part when in the lying position.

  According to the means 3, when making the folding container in the folded state or in the assembled state, the horizontal block of the shaft portion of the laminated side wall portion which is the upper side, the lifting prevention block at folding, and the lifting prevention block at assembly Interference can be prevented. Therefore, the folding workability and the assembling workability can be improved.

It is a perspective view of a folding container in an assembled state. It is a perspective view of a folding container in a folded state. It is a partially expanded perspective view of a folding container. It is a perspective view of a bottom wall structure part. It is a partially expanded perspective view of a long side base part. It is a partially expanded perspective view of a long side sidewall. It is a partially expanded perspective view of a long side sidewall. It is a partial expansion perspective view which shows a long side hinge part (long side general hinge part). It is a perspective view including a partial cross section of a folding container in an assembled state. It is a perspective view including a partial cross section of a folding container in a folded state. It is sectional drawing of the folding container in a folding state. It is sectional drawing of the folding container in which one long side wall part is in a standing position, and the other long side wall part is in a lying position. It is a perspective view including a partial cross section of a bottom wall composition part. It is the partial expanded sectional view which looked at the long side hinge part (long side general hinge part) of a long side wall part in a standing position, and a long side bearing part seen from the inside of a folding container. It is a partial enlarged plan view which shows the long side hinge part (long side general hinge part) of a long side wall part in a lying position, and a long side bearing part. In the folded state of the folding container, a long side hinge portion (long side general hinge portion) of the long side wall portion which is positioned at a lower position among the pair of long side wall portions, and a long side It is a partial expanded sectional view which shows a bearing part. In the folded state of the folding container, a long side hinge (long side general hinge) and a long side bearing, of the pair of long side walls which are positioned on the upper side among the pair of long side walls. It is a partial expanded sectional view which shows a part.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, FIG. 2, FIG. 4, etc., the folding container 1 is formed from the bottom wall 3 along the long sides of the bottom wall 3 and the bottom wall 3 having a substantially rectangular shape in plan view. Bottom wall configuration portion 2 comprising long side base portion 4 projecting upward and short side base portion 5 projecting upward from bottom wall portion 3 along the short side portions of bottom wall portion 3 Have. Furthermore, as shown in FIG. 1 and the like, the folding container 1 is provided for the long side sidewall 6 rotatably connected to each long side base 4 and for each short side base 5. And a short side wall 7 rotatably connected. The folding container 1 of this embodiment is made of polypropylene.

  The long side wall 6 and the short side wall 7 have an upright position (see FIG. 1) erected above the long side base 4 and the short side base 5, respectively. It is configured to be capable of rotational displacement between a lying position (see FIG. 2) to be laid on the central portion side of the wall 3. Further, as shown in FIG. 4, the protrusion length from the bottom wall 3 of the long side base 4 is longer than the protrusion length from the bottom wall 3 of the short side base 5, and the long side The formation position of the long side bearing portion 8 for rotatably supporting the side wall portion 15 is also greater than the formation position of the short side bearing portion 9 for rotatably supporting the short side wall portion 7 It is located above. Furthermore, the lateral width of the long side wall 6 is configured to be substantially the same as the longitudinal width of the bottom wall configuration 2, and the lateral width of the short side wall 7 is substantially the same as the distance between the pair of long side bases 4. It is configured the same.

  For this reason, in the present embodiment, the folded container 1 in the assembled state in which all the long side wall portions 6 and the short side wall portions 7 are in the erected position is all the long side wall portions 6 and When the short side wall 7 is in the folded position, the pair of short side walls 7 are displaced to the lying position first, and then the long side wall 6 is placed in the lying position. It is configured to be displaced. Then, when the folding container 1 is in the folded state, the short side wall 7 located at the lying position overlaps the upper side of the bottom wall 3 and the long side sidewall 6 formed at the lying position is short. It overlaps with the upper side of the side side wall portion 7.

  As shown in FIG. 1, FIG. 6, FIG. 7, etc., the long side wall 6 has a substantially rectangular plate-shaped base wall 11 and an inner wall of the base wall 11 that constitute the inner surface of the long side wall 6. An upper flange portion 12 projecting outward from the upper side portion, a lower flange portion 13 projecting outward from the lower side portion of the base wall portion 11, a side wall connecting the upper flange portion 12 and the lower flange portion 13 A reinforcing rib 14 is provided. Furthermore, a long side hinge portion 15 rotatably coupled to the long side bearing portion 8 of the long side base portion 4 is provided in the long side sidewall portion 6. The long side hinge portion 15 is a side from the lower end portions of the hinge main body 16 projecting downward from the lower flange portion 13 of the long side wall portion 6 and the both sides of the hinge main body 16 in the lateral width direction of the long side wall portion 6 It has a pair of shaft parts 17 which protrude in the direction.

  On the other hand, as shown in FIG. 4, FIG. 5, FIG. 13 etc., the long side bearing 8 provided in the long side base 4 is opened upward and on the inner peripheral side of the bottom wall 3. The insertion portion 21 into which the hinge main body 16 can be inserted and the shaft portion 17 can be inserted, and the displacement of the bottom wall portion 3 of the shaft portion 17 to the inner peripheral side is restricted, and the rotation of the shaft portion 17 And a bearing 22 for permitting displacement. Furthermore, the long side bearing portion 8 is provided with a hook portion 23 that regulates the upward displacement of the shaft portion 17 inserted into the shaft support portion 22.

  More specifically, as shown in FIG. 5, FIG. 13, FIG. 15, FIG. 16, etc., the long side bearing portion 8 is a front face provided on the inner wall portion 24 constituting the inner surface of the long side base portion 4. It has a notched portion (hereinafter referred to as "inner circumferential opening 25") having a substantially rectangular shape in view. Furthermore, a pair connecting the portion of the inner wall portion 24 located respectively slightly to the side of both side edges of the inner peripheral opening 25 and the outer wall 26 constituting the outer surface of the long side base 4 The connecting wall 27 is provided. Further, the upper wall portion 28 constituting the upper surface of the long side base portion 4 is omitted between the pair of connection walls 27, whereby the long side bearing portion 8 is opened upward. In the configuration, a region between the inner wall 24 (hereinafter also referred to as “restriction wall 29”) located on the inner peripheral opening 25 side of the connection wall 27 and the outer wall 26 corresponds to the pivot 22. The restriction wall 29 restricts the displacement of the bottom wall 3 of the shaft 17 inserted into the shaft support 22 to the inner peripheral side. Furthermore, a region between the pair of pivot support portions 22 corresponds to the insertion portion 21. In addition, the hooks 23 are provided in a pair so as to protrude outward from the outer surfaces (surfaces on the outer surface side of the long side base 4) of the restriction walls 29 located on both sides of the inner peripheral opening 25. There is.

  Incidentally, as shown in FIG. 9, the short side wall 7 is also provided with a short side hinge 31 connected rotatably to the short side bearing 9 of the short side base 5, The short side hinge portion 31 includes a hinge main body 32 protruding downward from the lower side portion of the short side wall 7 and shaft portions (not shown) protruding from both side surfaces of the hinge main body. Furthermore, although not shown, an insertion portion into which the hinge main body 32 of the short side hinge portion 31 is inserted and a shaft support portion into which a shaft portion of the short side hinge portion 31 is inserted also in the short side bearing portion 9; And the hook part which controls the upward displacement of the axial part inserted in the axis support part concerned is provided.

  Moreover, as shown in FIG. 3 etc., the insertion protrusion 33 which protrudes outward is provided in the both sides of the outer surface of the short side wall part 7. As shown in FIG. On the other hand, while the locking wall 34 which protrudes inward from the both sides of an inner surface is provided in the long-side side wall part 6, in the locking wall 34, when the folding container 1 is put into an assembled state, An insertion hole 35 is provided in which the insertion protrusion 33 of the short side wall 7 is inserted. With such a configuration, the tilting displacement of the short side wall 7 to the outside is prevented, and the positional deviation between the long side wall 6 and the short side wall 7 in the vertical direction is prevented. It has become.

  Furthermore, on the outer surface side of the short side wall 7, a lock mechanism 36 is provided to prevent the inward tilting displacement of the short side wall 7. The lock mechanism 36 includes a pair of left and right slide pieces 36a provided so as to be able to protrude and retract on each side of the long side wall 6 and, when the folding container 1 is assembled, the tip of the slide 36a Is inserted into a locking recess (not shown) provided on the inner surface side of the long side wall 6. In addition, the lock mechanism 36 includes the operation unit 36b operable by the operator, and performs a predetermined operation on the operation unit 36b to displace the left and right slide pieces 36a to a position where both slide pieces 36a are disengaged from the locking recess. It is supposed to

  Further, as shown in FIG. 1 and the like, the upper side of each long side wall 6 and each short side wall 7 penetrates in the thickness direction of the long side wall 6 and the short side wall 7. There is also provided a handle portion 37 which the operator can use. Furthermore, each long side sidewall 6 and each short sidewall with respect to the inner side of each long sidewall 6 and each short sidewall 7 corresponding to each handle 37. A handle cover 38 mounted so as not to project inward from the inner surface of the portion 7 and closing the handle portion 37 is provided. The handle cover 38 is configured to be elastically deformable, and is deformed inwardly when the operator inserts a fingertip into the handle portion 37, and is held by its own elastic force when the fingertip is removed from the handle portion 37. The posture for closing the hand 37 is returned.

  The distance between the pair of short side base portions 5 is longer than twice the height (vertical width) of the short side wall portions 7. For this reason, the heights of the pair of short side wall portions 7 set as the lying position are aligned. On the other hand, the distance between the pair of long side base portions 4 is shorter than twice the height (vertical width) of the long side wall portions 6. Therefore, as shown in FIG. 2 and FIGS. 10 to 12, when folding the folding container 1, one of the long side wall portions 6 of the pair of long side wall portions 6 is placed to the lying position. After displacing, the other long side wall 6 is placed over the one long side wall 6 which has already been set to the lying position, and is displaced to the lying position. That is, the pair of long side wall portions 6 are folded so as to be folded over each other. Furthermore, the long side bearing portion 8 is configured to allow displacement in the vertical direction of the long side hinge portion 25 of the long side wall portion 6 located in the lying position, and the pair of long sides set to the lying position The side side wall portions 6 are both extended in a substantially horizontal direction. In the present embodiment, the stacked sidewall portion is configured by the long side sidewall portion 6.

  As shown in FIG. 1 and FIG. 9, in the present embodiment, six long side hinge portions 15 are provided for each long side wall portion 6. Among them, with regard to the two long side hinges 15 provided on the central side of the long side wall 6 in the width direction, as shown in FIGS. 6 and 9, the inner surface of the hinge main body 16 is the long side wall In addition to being configured flush with the inner surface of the base wall portion 6 (base wall portion 11), the inner circumferential opening portion 25 of the corresponding long side bearing portion 8 has substantially the same shape. On the other hand, as shown in FIG. 7, FIG. 9 and FIG. 14, the remaining four long side hinges 15 (long side hinges 15 on both side sides of the long side The inner surface of the hinge main body 16 of the long side hinge portion 15 located on the inner side of the corresponding long side bearing portion 8 is referred to as "long side general hinge portion 41" hereinafter). It is slightly smaller.

  In this respect, as shown in FIGS. 7 to 9 and FIG. 14, a closing cover 42 is attached to the inner side of the long side general hinge portion 41 in the present embodiment. When the folded container 1 is in the assembled state, the gap between the hinge main body 16 of the long side general hinge portion 41 and the peripheral portion of the inner peripheral opening 25 of the corresponding long side bearing 8 is a closed cover 42 is configured to be closed. As shown in FIG. 7, the closing cover 42 has a closing plate 43 having the same shape as the inner peripheral opening 25 of the corresponding long side bearing 8 and a closing plate 43 as the long side general hinge 41. And a mounting portion 44 for mounting. As shown in FIG. 9, the inner surface of the closing plate portion 43 of the closing cover 42 attached to the long side general hinge portion 41 is substantially flush with the inner surface of the long side wall portion 6 and the folding container 1 In the assembled state, the inner surface of the closing plate portion 43 is substantially flush with the inner surface of the long side base portion 4.

  As shown in FIGS. 6 and 11, etc., the outer surface of the long side hinge portion 15 including the long side general hinge portion 41 is not flush with the outer surface of the long side wall portion 6, and the long side wall It is located on the inner surface side of the long side wall 6 with respect to the outer surface of the part 6. Further, in the present embodiment, the long side general hinge portion 41 corresponds to a target hinge portion. In addition, as shown in FIG. 9, among the three short side hinge portions 31 provided in the short side wall portion 7, the short side wall portion 31 located on both sides of the short side wall portion 7. Also in regard to, the closing cover 45 is attached to the inner surface side.

  Now, as shown in FIG. 13, FIG. 14 and FIG. 16, the inner peripheral opening 25 of the long side bearing 8 connected with the long side general hinge 41 is the lower edge of the inner peripheral 25 And a second notch 52 which is located above the first notch 51 and whose lateral width is larger than that of the first notch 51. . The second notch 52 in the present embodiment is configured in a tapered shape that gradually widens upward. In particular, in the present embodiment, the left and right side edges of the second notch 52 are connected to the first slope 53 connected to the first notch 51 and the upper edge of the first slope 53. A slope 54 is provided, and the slope of the second slope 54 is configured to be closer to the vertical direction than the slope of the first slope 53. The upper end of the side edge of the inner circumferential opening 25 (the second notch 52) is chamfered, and is inclined more greatly in the direction in which the lateral width of the inner circumferential opening 25 is wider than the second inclined portion 54. doing.

  Further, as shown in FIG. 14 and the like, the boundary between the first notch 51 and the second notch 52 in the vertical direction is a long side bearing in the folded state of the folding container 1 in the closing cover 42. The same distance as the length of the portion inserted into the portion 8 (see FIG. 15) is located above the position displaced upward from the lower edge of the inner circumferential opening 25. That is, as described above, the closing plate portion 43 of the closing cover 42 has the same shape as the inner circumferential opening 25 of the corresponding long side bearing portion 8 in the state where the long side wall portion 6 is in the upright position. And the first corresponding portion 46 corresponding to the first notch 51 (closing the first notch 51) and the second notch 52 (closing the second notch 52). And the second corresponding portion 47.

  And as shown in FIG. 15, the site | part inserted in the long side bearing part 8 in the folded state of the folding container 1 among the closing covers 42 is the 1st corresponding part 46, Comprising: Horizontal width is fixed and , And the same lateral width as the first notch 51. For this reason, as shown in FIG. 16, the inner periphery of the closing plate portion 43 of the closing cover 42 attached to the long side wall portion 6, which is positioned at the lower side of the pair of long side wall portions 6. It is possible to position (abut) the lower edge of the opening 25. As shown in FIG. 11, in the present embodiment, in the folded state of the folding container 1, the long side sidewall 6, which is the lower position of the pair of long side sidewalls 6, is in the lying position. The outer surface of the short side wall 7 and the lower edge of the inner circumferential opening 25 are supported in contact with the upper surface of the short side wall 7 and extend in a substantially horizontal direction.

  Furthermore, as shown in FIG. 17, the boundary between the first notch 51 and the second notch 52 in the vertical direction is the upper side of the pair of long side walls 6 in the folded state of the folding container 1. It is located below the inner surface facing the lower side of the closing plate portion 43 of the closing cover 42 attached to the long side wall portion 6 in the lying position.

  That is, as shown in FIG. 11, in the folded state of the folding container 1, the long side wall 6 which is positioned on the upper side of the pair of long side walls 6 is a length on which the long side is positioned on the lower side. It is supported in contact with the upwardly facing outer surface of the side sidewall 6 and is configured to extend in a substantially horizontal direction. Then, as shown in FIG. 17, the closing plate 43 of the closing cover 42 attached to the long side wall 6, which is located on the upper side at the upper position, is the first corresponding portion 46. 2 will be inserted into the notch 52. For this reason, the closing plate portion 43 of the closing cover 42 attached to the long side wall portion 6 positioned at the upper side of the pair of long side wall portions 6 and the side edges of the inner circumferential opening 25 There will be a gap between them.

  Now, as shown in FIG. 12 and FIG. 13, each hook portion 23 provided in a pair in each long side bearing portion 8 of the present embodiment is outward from the outer surface of the regulation wall portion 29 (inner wall portion 24). (It protrudes to the outer peripheral side of the bottom wall part 3). In addition, when the folding container 1 is in the assembled state, each hook portion 23 is positioned above the shaft portion 17 of the long side general hinge portion 41 and brought into contact with or in proximity to the shaft portion 17 The long side which is located above the lifting prevention block 55 and the lifting prevention block 55 at the time of assembly and which is positioned on the upper side of the pair of long side walls 6 when the folding container 1 is in the folded state. It is located above the shaft 17 of the side wall 6 and is provided with a folding prevention block 56 that abuts on or approaches the shaft 17.

  Further, the lifting prevention block 56 protrudes from the outer peripheral side of the bottom wall 3 more than the lifting prevention block 55 at the time of assembly. Furthermore, in the present embodiment, the lifting prevention block 55 at the time of assembly is connected to the lifting prevention block 56 at the time of folding. In addition, as shown in FIGS. 13 and 17, the lower end portion of the lifting prevention block 56 at the time of folding is provided with a lower protrusion 57 that protrudes laterally from the inner peripheral opening 25. The lifting prevention block 55 is connected to the lower surface of the lifting prevention block 56 so as to extend over the lower projection 57 as well.

  Further, as shown in FIG. 12, the outer end edge of the assembly lifting prevention block 55 extends between the outer end of the lower surface of the lifting prevention block 55 during assembly and the inner end of the lower surface of the folding prevention block 56 during folding. (Hereinafter, "the connection side 58" is called) inclines toward the inner circumference side of bottom wall 3 towards the bottom. On the other hand, the outer end edge of the folding prevention block 56 is inclined downward to the outer peripheral side of the bottom wall 3.

  In addition, as shown in FIG. 13, the long side bearing portion 8 is provided with a restriction stand 59 which restricts the downward displacement of the long side hinge portion 15 in the insertion portion 21. The upper surface of the restriction stand 59 is located slightly below the lower edge of the inner circumferential opening 25.

  Further, as shown in FIGS. 7, 8 and 12, the shaft portion 17 of the long side hinge portion 15 extends laterally from the lower end portion of the hinge main body 16 in the state where the long side wall portion 6 is in the upright position. And extending in the thickness direction of the long side wall portion 6, and a vertical block 49 protruding upward from a portion of the upper surface of the horizontal block 48 on the inner surface side of the long side wall portion 6; Is equipped. Furthermore, the width in the horizontal direction when the long side wall 6 is in the lying position is the width in the horizontal direction when the long side wall 6 is in the standing position when the long side wall 6 is in the lying position. It is configured narrower than. For this reason, when the long side wall 6 is attached to the bottom wall 2 (the long base 4), the stem of the long hinge 15 is assumed to be a posture in which the long side wall 6 is laid. 17 is inserted between the lifting prevention block 56 and the outer wall 26 at the time of folding. The distance between the lifting prevention block 56 and the outer wall 26 at the time of folding is slightly smaller than the horizontal width of the shaft 17 when the long side wall 6 is in the lying position.

  When the folding container 1 is in the assembled state, the upper end portion of the vertical block 49 of the long side hinge portion 15 abuts on or approaches the lower surface of the lifting prevention block 55 at the time of assembly (FIG. 12). Right side wall 6)). Therefore, in the case where the folding container 1 is assembled, when the folding container 1 is lifted by holding the hand on the handle portion 37 provided on the long side wall 6, the long side hinge portion 15 is The upper end portion of the vertical block 49 abuts against the lower surface of the lifting prevention block 55 at the time of assembly, and the lifting prevention block 55 is supported (lifted) by the vertical block 49 at the time of assembly.

  Furthermore, as shown in FIG. 11, when the folding container 1 is in the folded state, the long side hinge of the long side wall 6 positioned at the upper position of the pair of long side walls 6. The upward facing surface of the vertical block 49 of the portion 15 is in contact with or close to the lower surface of the lifting prevention block 56 at the time of folding.

  Further, as shown in FIG. 12, in the present embodiment, the upper surface of the horizontal block 48 facing upward when the long side wall 6 of the horizontal block 48 is in the upright position is the long side wall 6. Is inclined downward toward the outer periphery of the bottom wall 3 in the standing position, and is inclined upward toward the outer periphery of the bottom wall 3 when the long side wall 6 is in the lying position. There is. Incidentally, the hinge main body 16 of the long side hinge portion 15 and the outer surface side portion of the lower surface of the shaft portion 17 are formed in a substantially arc shape so that the turning operation of the long side wall portion 6 is smoothly performed. It has become.

  As described above in detail, according to the present embodiment, the hook portion 23 of the long side bearing portion 8 pivotally supporting the long side hinge portion 15 of the long side wall portion 6 is in a state where the folding container 1 is assembled. In some cases, the assembly is located above the shaft portion 17 of the long side hinge portion 15 and abuts or abuts against the shaft portion 17, or the assembly lifting prevention block 55 and the assembly lifting prevention block 55 are positioned When the folding container 1 is in the folded state, the pair of long side wall portions 6 is positioned above the shaft portion 17 of the upper long side wall portion 6 and abuts against the shaft portion 17 or And an adjacent folding and lifting prevention block 56. That is, the hook portion 23 of the present embodiment not only has a function of preventing the shaft portion 17 inserted in the shaft support portion 22 from coming off from the shaft support portion 22 even if the shaft portion 17 is relatively displaced upward, It also has a function of preventing the relative displacement of the shaft 17 of the long side wall 6 with respect to the long side bearing 8 when the container 1 is in the assembled state. Therefore, when the folded container 1 is folded or when the long side wall 6 is displaced to the upright position, the shaft 17 of the long side wall 6 is from the long side bearing 8 (shaft support 22). When the foldable container 1 is assembled with the foldable container 1 in the assembled state and the foldable container 1 is lifted by lifting the foldable container 1 while preventing the slippage upward, the long side sidewall 6 with respect to the bottom wall component 2 It is possible to prevent the situation in which the relative displacement is upward. Therefore, stabilization etc. of the connection state of the long side sidewall 6 in the standing position and the bottom wall component 2 can be achieved.

  Further, the lifting prevention block 56 is disposed above the lifting prevention block 55 at the time of assembly, and the folding prevention block 56 and the lifting prevention block 55 at the assembly time are connected. For this reason, the lifting prevention block 56 at the time of folding and the lifting prevention block 55 at the time of assembly are mutually strengthened. For example, when the long side wall 6 in the standing position is lifted, the lifting prevention at the assembly time The block 55 can cooperate with the fold-up prevention block 56 located above it to receive the force applied from the shank 17. Therefore, deformation, damage and the like of the lifting prevention block 56 at the time of folding and the lifting prevention block 55 at the time of assembly can be suppressed, and the durability can be improved.

  In addition, the folding prevention block 56 and the lifting prevention block 55 are arranged at the top and bottom, and the shaft is provided on the lower surface side of the folding prevention block 56 and the lifting prevention block 55 during assembly. 17 are locked at the time of folding of the folding container 1 and at the time of assembly. Therefore, for example, when the long side sidewall 6 is in the upright position separately from the shaft portion 17 with respect to the long side hinge 15, it is inserted into the long side bearing 8 and the lifting prevention block 55 during assembly. In order to cause the long side bearing portion 8 to receive the protrusion as in the configuration in which the protrusion is provided so as to be locked, the inner peripheral side of the bottom wall portion 3 in the long side bearing portion 8 It is possible to avoid a situation where the side edge of the opening becomes step-like. Therefore, a gap is easily formed between the side edge of the opening of the long side bearing portion 8 and the long side hinge portion 15 of the long side wall portion 6 in the standing position, and the gap It is possible to prevent a situation in which the articles contained in the folding container 1 cause the situation such as being caught in the gap due to the formation of the above.

  In addition, the lifting prevention block 56 projects outward from the lifting prevention block 55 toward the outer peripheral side of the bottom wall portion 3 during assembly, and the communication side portion which is the outer end edge of the lifting prevention block 55 during assembly has a bottom facing downward. It inclines to the inner peripheral side of the wall 3. That is, among the pair of long side wall portions 6, the shaft portion 17 of the long side hinge portion 15 of the long side wall portion 6 positioned on the upper side in the folded state of the folding container 1 is the long side wall portion 6. When the folding container 1 is assembled in the erected position, it is displaced downward while rotating. At this time, since the connecting side portion 58 extending between the lower surface (locking surface) of the lifting prevention block 56 at the time of folding and the lower surface (locking surface) of the lifting prevention block 55 at the time of assembly The shaft portion 17 of the side hinge portion 15 is relatively smoothly moved to the lower surface of the lifting prevention block 55 at the time of assembly while being guided by the connection side portion 58. Therefore, the improvement of the assembly workability of the folding container 1 can be achieved.

  The width of the shaft portion 17 of the long side hinge portion 15 in the horizontal direction when the long side wall portion 6 is in the lying position is the width in the horizontal direction when the long side wall portion 6 is in the standing position It is configured narrower than. For this reason, the shaft portion 17 of the long side hinge portion 15 of the long side wall portion 6 positioned at the upper side of the pair of long side wall portions 6 is locked to the lifting prevention block 56 at the time of folding, When the long side wall 6 is in the upright position, the shaft 17 is locked to the assembly lifting prevention block 55 located on the inner peripheral side of the bottom wall 3 with respect to the assembly lifting prevention block 55 Can be established more reliably. Furthermore, when the said structure is employ | adopted, when making the long side side wall part 6 located in an upper position in a folded state of the folding container 1 among a pair of long side side wall parts 6, the said long side side wall Since the width in the horizontal direction of the shaft portion 17 gradually becomes larger as the shaft portion 17 of the portion 6 is displaced downward while being rotated, the shaft portion 17 is guided downward by the connection side portion 58 The action and effect will be more prominent.

  The axial portion 17 of the long side hinge portion 15 of the long side wall portion 6 protrudes laterally from the lower end portion of the hinge main body 16 and is a horizontal block extending in the thickness direction of the long side wall portion 6 48 and a vertical block 49 which protrudes upward from the inner surface side of the long side wall 6 which is the standing position of the upper surface of the horizontal block 48. Furthermore, of the horizontal block 48, the upper surface of the horizontal block 48 facing upward when the long side wall 6 is in the upright position is the bottom wall 3 when the long side wall 6 is in the upright position. When the long side wall 6 is in the lying position, it is inclined upward toward the outer periphery of the bottom wall 3. Therefore, when making the folding container 1 in the folded state or in the assembled state, the horizontal block 48 of the shaft portion 17 of the long side wall portion 6 which is the upper side, the lifting prevention block 56 at the folding time, Interference with the lifting prevention block 55 can be prevented. Therefore, the folding workability and the assembling workability can be improved.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other applications and modifications not illustrated below are naturally possible.

  (A) In the above embodiment, the number, the arrangement, the width, and the like of the long side hinge portions 15 (long side bearing portions 8) are not particularly limited, and may be changed as appropriate. Further, the number of the long side hinges 15 (long side general hinges 41) to which the closing cover 42 is attached is not particularly limited, and can be appropriately changed as needed. The closing cover 42 may be omitted, and the inner surface sides of all the long side hinges 15 may be configured to have the same shape as the inner circumferential opening 25.

  (B) In the above embodiment, the height positions of the pair of short side walls 7 located at the lying position are the same, but for example, the short side sidewalls 7 lying at the lying position are vertically overlapped. You may configure it. When the configuration is adopted, the short side bearing portion 9 of the short side base portion 5 may be provided with the hook portion 23 having the lifting prevention block 55 at the time of assembly and the lifting prevention block 56 at the time of folding. . Furthermore, in the case of adopting such a configuration, after the pair of long side sidewall portions 6 is set to the lying position first, the pair of short side sidewall portions 7 may be set to the lying position.

  (C) In the above embodiment, the upper side of the long side wall 6 and the upper side of the long base 4 project upward from the inner side, and the long side wall 6 and the long base 6 Although the step shape is formed in such a manner that a protrusion extending in the lateral width direction of 4 is provided, the protrusion may be omitted and configured to be substantially flat. Further, in the above embodiment, the handle portion 37 is configured by providing the openings in the long side wall 6 and the short side wall 7, but without providing the opening, the long side The side wall portion 6 and a reinforcing rib provided on the outer surface side of the short side wall portion 7 may constitute a handle portion which the operator can hang.

  (D) In the above embodiment, the entire second notch 52 of the inner circumferential opening 25 has a tapered shape that gradually widens upward, but at least the first notch of the second notch 52 is cut. Only the connecting portion with the notch 51 may be tapered, and the upper portion may be extended in the substantially vertical direction with respect to the tapered portion. Also in this case, even when the second corresponding portion 47 contacts the side edge portion of the inner peripheral opening 25 when the long side wall 6 in the lying position is set to the upright position, the second corresponding portion 47 Among them, the portion corresponding to the first inclined portion 53 has an effect that the second corresponding portion 47 can be relatively smoothly inserted through the inner peripheral opening 25. Further, the entire side edges of the inner peripheral opening 25 (in the case where the upper end is chamfered, substantially the whole) may be extended in the vertical direction.

  (E) Although the folding container 1 of the said embodiment is comprised by the polypropylene, it is good also as being comprised with other resin materials, such as polyethylene, PET, a polyamide.

  DESCRIPTION OF SYMBOLS 1 ... folding container, 2 ... bottom wall structure part, 3 ... bottom wall part, 4 ... long side base part, 5 ... short side base part, 6 ... long side side wall part, 7 ... short side side wall part, 8 long side bearing portion 9 short side bearing portion 15 long side hinge portion 16 hinge body 17 axial portion 21 insertion portion 22 axial support portion 23 hook portion 24 ... inner wall, 25 ... inner circumferential opening, 29 ... regulatory wall, 48 ... horizontal block, 49 ... vertical block, 55 ... lifting block during assembly, 56 ... lifting block during folding, 58 ... connection side.

Claims (3)

A bottom wall portion having a bottom wall portion having a substantially rectangular shape in plan view; and a base portion protruding upward along each side of the bottom wall portion;
For each base portion of the bottom wall configuration portion, it is connected so as to be capable of rotational displacement between an upright position erected above the each base portion and a lying position to be laid above the bottom wall portion A folded container comprising the
Each side wall portion includes a hinge body projecting downward from the lower side portion of the side wall portion, and a shaft portion projecting laterally from a lower portion of the side surface of the hinge body in the lateral width direction of the side wall portion. Equipped
Each base portion is open at the upper side and the inner peripheral side of the bottom wall portion, and an insertion portion capable of inserting the hinge main body and the shaft portion are configured to be insertable, and the bottom wall of the shaft portion And a bearing portion for restricting the displacement of the portion to the inner peripheral side and allowing the rotational displacement of the shaft portion.
The bearing portion includes a hook portion that restricts upward displacement of the shaft portion inserted into the shaft support portion,
The side wall portions face each other in the assembled state of the folding container in which all the side wall portions are in the standing position, and in the folded state of the folding container in which all the side wall portions are in the lying position. And a pair of stacked side wall portions extending in a substantially horizontal direction, and overlapping on the upper side,
The hook portion of the bearing portion pivotally supporting the hinge portion of the laminated side wall portion
When the folding container is in the assembled state, an assembly lifting prevention block located above the shaft and in contact with or in proximity to the shaft,
The assembly is located above the lifting prevention block at the time of assembly, and when the folding container is in the folded state, the folding container is located above the shaft of the upper stack side wall portion of the pair of stack side wall portions and the shaft portion It has an abutment or close-up lifting prevention block,
The lifting prevention block during assembly and the lifting prevention block during folding are from the restriction wall portion for restricting the displacement of the bottom wall portion of the shaft portion inserted into the shaft support portion to the inner wall portion. The folding container is characterized in that it protrudes to the outer peripheral side of the container and the lifting prevention block at the time of assembly is connected to the lifting prevention block at the time of folding. The folding-up lifting prevention block protrudes to the outer peripheral side of the bottom wall portion with respect to the assembly lifting-up prevention block,
The connection edge which is the outer edge of the assembly lifting prevention block extending between the outer end of the lower surface of the assembly lifting prevention block and the inner end of the lower surface of the folding prevention block downward. The foldable container according to claim 1, wherein the container is inclined toward the inner peripheral side of the bottom wall. The axial portion of the laminated side wall portion protrudes sideways from the lower end portion of the hinge main body or a portion in the vicinity thereof in the state where the laminated side wall portion is in the standing position, and extends in the thickness direction of the laminated side wall portion And a vertical block projecting upward from a portion of the upper surface of the horizontal block on the inner surface side of the stacked side wall portion,
When the folding container is put into the assembled state, the upper end of the vertical block of the laminated side wall portion abuts or is close to the lower surface of the lifting prevention block during the assembling;
When the folding container is brought into the folded state, the upward facing surface of the vertical block of the stacked side wall portion, which is positioned above the lying position, is prevented from being lifted up during the folding. In contact with or close to the lower surface of the block,
The upper surface of the horizontal block facing upward when the stacked side wall portion is at the standing position in the horizontal block is located on the outer peripheral side of the bottom wall portion when the stacked side wall portion is at the standing position. The foldable container according to claim 1 or 2, wherein the container is inclined downward, and the laminated side wall portion is inclined upward toward the outer peripheral side of the bottom wall portion when in the lying position.

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