JP2013047113A - Wall structure of carrying container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall structure of carrying container capable of increasing the strength of a fixing part between first and second resin plate members as compared with a conventional one.SOLUTION: In the wall structure of carrying container, a window plate member 32G is fixed to an inner surface 80C of a wall hole 75 of a frame member 32H, and a support wall 81 integrally molded with the frame member 32H is fixed to an inner surface of the window plate member 32G. Accordingly, a load applied on the window plate member 32G may be received by the entire plate thickness of an outer edge of the window plate member 32G, and the strength of the fixing part between the frame member 32H and the window plate member 32G is improved as compared with conventional wall structures of carrying containers receiving the load not larger than half the plate thickness. Furthermore, because the surface of the support wall 81 opposite to the fixing surface 81B with the window plate member 32G is an inclined surface 81A inclined so as to gradually approach the window plate member 32G as it goes toward the tip of the support wall 81, a foreign substance is prevented from being caught at the support wall 81.

Description

  In the present invention, the first and second resin plate members are integrally molded with different resins so that the plate thickness surfaces parallel to the plate thickness direction of the first and second resin plate members are fixed to each other. The present invention relates to a wall structure of a transport container which is a container constituting wall of any one of a side surface, a lower surface and an upper surface.

  Conventionally, as a wall structure of this type of transport container, as shown in FIG. 16, a stepped protrusion 2A having a thickness less than half of the plate thickness is provided on the plate thickness surface 2 of the second resin plate member 1, and The stepped recess 4A is provided in the plate thickness surface 4 which is the inner surface of the wall hole 3 of the first resin plate member 5, and the second resin plate member 1 is inserted into the wall hole 3 in a state where the stepped protrusion 2A is received in the stepped recess 4A. The thing fixed to the inner surface 4 of this is known (for example, refer patent document 1).

Japanese Patent No. 4203684 (FIG. 6)

  However, in the wall structure of the conventional transfer container described above, a situation may occur in which the load received by the second resin plate member 1 is applied to the step protrusion 2A that is half or less of the plate thickness and the step protrusion 2A is deformed. It was.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wall structure of a transport container that can increase the strength of the fixing portion of the first and second resin plate members as compared with the conventional case.

  The wall structure of the transport container according to the invention of claim 1 made to achieve the above object is such that the plate thickness surfaces parallel to the plate thickness direction of the first and second resin plate members are fixed to each other. In the wall structure of the transport container in which the first and second resin plate members are integrally molded with different resins and used as a container constituting wall on the side surface, lower surface, or upper surface of the transport container, the front and back surfaces of the first resin plate member A support wall that protrudes from the edge of the second resin plate member on one surface and is fixed to the edge of one surface of the front and back surfaces of the second resin plate member, and the second resin plate of the support walls The surface opposite to the fixing surface with the member is characterized in that the surface is inclined so as to gradually approach the second resin plate member toward the tip of the support wall.

  The invention of claim 2 is the wall structure of the transport container according to claim 1, wherein the first protrusion is formed so as to protrude along the tip edge of the fixing surface of the support wall with the second resin plate member. Has characteristics.

  According to a third aspect of the present invention, in the wall structure of the transport container according to the second aspect, the first resin plate member is positioned at a position facing the first protrusion on the surface opposite to the fixing surface with the support wall. It is characterized in that a second protrusion having the same shape as the protrusion is formed.

  According to a fourth aspect of the present invention, in the wall structure of the transfer container according to any one of the first to third aspects, the transfer container is provided between a bottom base constituting the bottom and an upper frame constituting the upper part. In addition, a pair of jumping side walls and a pair of bent side walls are arranged opposite to each other, the jumping side walls are rotatably connected to the upper frame at the upper end, and the bent side walls have upper and lower ends. The upper frame and the bottom base are pivotably connected to each other, and an intermediate hinge provided at the center in the vertical direction is divided into an upper bent side wall and a lower bent side wall so that it can be folded inward. It is a folding container that can be folded in the order of a pair of jumping side walls and a pair of folding side walls, and includes a jumping side wall, an upper folding side wall, and a lower folding side wall. At least one of the frame member including the entire outer edge portion and a window plate member that closes the inner opening of the frame member. The window plate member is entirely formed of a second resin plate member and is formed of a transparent or translucent resin, and the frame member has a first resin plate member around the inner opening. It is characterized in that it is made of a resin having higher strength than the window plate member.

  According to a fifth aspect of the present invention, in the wall structure of the transport container according to any one of the first to fourth aspects, the second resin plate member includes a plate thickness surface of the first resin plate member. It is characterized in that a retaining projection that bites into the end on the support wall side is integrally formed.

  In the wall structure of the transport container according to claim 1, the plate thickness surfaces parallel to the plate thickness direction of the first and second resin plate members are fixed to each other, and from the edge of the first resin plate member. Since the protruding support wall is fixed to the edge of one surface of the front and back surfaces of the second resin plate member, the load applied to the second resin plate member is subjected to the entire thickness of the outer edge portion of the second resin plate member. The strength of the fixed portion of the first and second resin plate members is improved as compared with the wall structure of the conventional transfer container that has received a load with a plate thickness of less than half. In addition, the surface of the support wall opposite to the fixing surface with the second resin plate member is an inclined surface that is inclined so as to gradually approach the second resin plate member toward the tip of the support wall. Therefore, it is possible to prevent a situation in which foreign matter is caught on the support wall.

  Further, as described above, the support wall has a tapered shape with the outer surface inclined, but in the configuration of claim 2, the support wall has an annular shape along the front edge of the fixing surface of the support wall with the second resin plate member. Since the first protrusion is formed so as to protrude, the difference in thickness between the base end portion of the support wall and the tip end portion having the first protrusion can be suppressed, and molding distortion due to sink marks during molding can be suppressed and the support wall The tip of the can be reinforced. Furthermore, by arranging the first protrusion on the fixing surface of the support wall with the second resin plate member, the fixing area between the second resin plate member and the support wall including the first protrusion increases. The first protrusion also bites into the second resin plate member, and the bonding strength between the second resin plate member and the support wall is increased.

  According to the structure of Claim 3, the site | part which became thin when the 1st protrusion striped in among 2nd resin board members can be reinforced with the 2nd protrusion of the 2nd resin board member. In addition, a portion of the injection mold that molds the first protrusion of the first resin plate member is a movable core that can move in the injection mold, and the movable core is the core after molding the first resin plate member. If the second resin plate member is formed by backing, the second protrusion having the same shape as the first protrusion can be easily formed.

  According to the structure of Claim 4, among the folding containers, at least one of the jumping side wall, the upper side folding side wall, and the lower side folding side wall includes a frame member including the entire outer edge portion, and a frame. Since the window plate member that closes the inner opening of the member is integrally formed with a different resin, the entire window plate member is a second resin plate member and is molded with a transparent or translucent resin. The contents can be seen through the window plate member. In addition, the frame member is formed of a resin that is stronger than the window plate member, and the high-strength frame member is connected to other parts such as the bottom base or the upper frame. Compared to a conventional folding container molded from the same transparent resin, the strength of the entire folding container is improved. That is, according to the present invention, it is possible to provide a folding container that can be seen through from the outside and that has higher strength than conventional ones.

  In the wall structure of the transfer container according to the fifth aspect, the end portion on the support wall side is located in the middle in the thickness direction of the first resin plate member on the plate thickness surface of the first resin plate member. And in the process in which a 1st resin board member is shape | molded from molten resin, solidification of molten resin becomes slowest in the edge part by the side of a support wall among the board thickness surfaces of a 1st resin board member. Thereby, when it shape | molds in order of a 1st resin board member and a 2nd resin board member, in the board | plate thickness surface of a 1st resin board member by the pressure of the molten resin for 2nd resin board member shaping | molding A retaining protrusion that bites into the end portion on the support wall side is formed integrally with the second resin plate member. And, by this retaining protrusion, the bonding force between the first resin plate member and the second resin plate member can be increased.

The perspective view of the folding container which concerns on one Embodiment of this invention (A) Top side perspective view of upper frame, (B) Bottom side perspective view of upper frame (A) Top side perspective view of bottom base, (B) Bottom side perspective view of bottom base (A) The outer surface side perspective view of a jumping side wall, (B) The inner surface side perspective view of a jumping side wall, External perspective view of bent side wall Inside perspective view of bent side wall (A) Upper surface side perspective view of the rotating lid, (B) Lower surface side perspective view of the rotating lid. (B) Top side perspective view of locking slider, (B) Bottom side perspective view of locking slider Perspective view of a folding container with the rotating lid fully open Perspective view of the folded container in the folded state Cross section of lower bent side wall Partially enlarged sectional view of the lower bent side wall Cross section of injection mold before core back Cross section of injection mold after core back Partially enlarged sectional view of the rotating lid Partial sectional view of a conventional transport container

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the folding container 10 (corresponding to the “conveying container” of the present invention) of the present embodiment is a resin molded product having a rectangular parallelepiped box shape as a whole, and constitutes the bottom thereof. A pair of bent side walls 30, 30 and jumping side walls 40, 40 are assembled between the bottom base 11 and the upper frame 20 constituting the upper part, and a pair of turns are mounted on the upper surface of the upper frame 20. The movable lids 50 and 50 are assembled.

  As shown in FIG. 2B, the upper frame 20 has a rectangular frame shape, and both the long side portion and the short side portion of the upper frame 20 have a grooved structure with the cross-sectional shape opened downward. Yes. The outer frame side wall 20A and the inner frame side wall 20B that face each other across the groove opening in the groove-shaped structure are such that the outer frame side wall 20A extends longer than the inner frame side wall 20B and the inner frame in the short side portion of the upper frame 20 The lower end of the side wall 20B is located above the lower end of the inner frame side wall 20B in the long side portion. The long side rotation support portions 20D and 20D are formed on the inner surface of the lower end portion of the outer frame side wall 20A in the long side portion of the upper frame 20, while the outer frame side wall 20A in the pair of short side portions of the upper frame 20 is formed. The short-side rotation support portions 20C and 20C are formed on the inner surface of the, and the short-side rotation support portion 20C is disposed above the long-side rotation support portion 20D.

  As shown in FIG. 2A, lid rotation support portions 20E and 20E are formed on the upper surface of the pair of long side portions of the upper frame 20, and the upper surface of the pair of short side portions of the upper frame 20 is formed on the upper surface. Each has a total of four upper surface protrusions 22 formed in pairs. Further, a closing hole 24 is formed in the inner surface of the pair of short sides of the upper frame 20 in the center in the longitudinal direction.

  As shown in FIG. 3A, the bottom base 11 has the same rectangular shape as that of the upper frame 20, and the bottom surface surrounding wall 11S protrudes from the entire outer edge of the upper surface to form a tray shape. Hinge components 11D and 11D are provided inside the pair of long side portions of the bottom surface surrounding wall 11S. On the other hand, inside the pair of short side portions in the bottom surface surrounding wall 11S, central engaging protrusions 11R and 11R are provided at the center thereof. The center engaging protrusion 11R has a part of the bottom surface of the bottom base 11 raised in a horizontally long rectangular parallelepiped shape, and a rotation restricting hole 14 is formed through the center of the center engaging protrusion 11R in the longitudinal direction. ing. In addition, locking protrusions 11K and 11K protrude laterally from both longitudinal end faces of the central engagement protrusion 11R. Further, a locking projection (not shown) is formed on the bottom surface of the distal end of the locking projection 11K. A pair of rectangular protrusions 11M and 11M protrude from the bottom surface of the bottom base 11 on both sides of the center engaging protrusion 11R.

  As shown in FIG. 3 (B), the bottom surface of the bottom base 11 is formed with a grid rib 11L protruding from the entire surface excluding the outer edge portion. Further, at the outer edge corner portion of the bottom base 11 where the lower surface and the side surface intersect with each other, the belt locking recesses 13 are respectively provided at two positions near both ends of each long side portion and at the center position of each short side portion. Is formed. When a plurality of folding containers 10 are stacked, the belt locking recess 13 can also be used as a finger insertion part for inserting a finger between the upper and lower folding containers 10, 10.

  As shown in FIG. 4A, the jumping side wall 40 has a structure in which, for example, a rib is provided on a main plate portion 49 having a substantially square shape as a whole and is reinforced. Specifically, a pair of first bulging protrusions 41 and 41 are formed on the jumping side wall 40 by bulging both side edge portions of the main plate portion 49 outward from the lower end portion toward the upper end position. Next to the first bulging protrusions 41, 41, a part of the main plate portion 49 is bulged in the same manner as the first bulging protrusion 41, and the first bulging protrusions 41, 41 are formed. Second bulging protrusions 42, 42 are formed that extend in the vertical direction with the same length. In addition, corner connecting portions 45 and 45 are formed at two positions in the vertical direction of the first bulging protrusions 41 and 41, respectively. Each corner connecting portion 45 dents part of the first bulging protrusion 41 that is on both sides of the jumping side wall 40 from the outside, and protrudes the connecting piece 45T from the back surface of the recessed portion. The structure is

  At a position near the lower end of the outer surface of the jumping side wall 40, the first lower end lateral rib 40D extends over the entire left and right direction of the jumping side wall 40. At the center in the longitudinal direction of the first lower end lateral rib 40D, a rotation restricting hole 46 is formed penetrating in the vertical direction. Moreover, the part which cross | intersects the 1st and 2nd bulging protrusion parts 41 and 42 among 1st lower end horizontal ribs 40D is the 1st and 2nd in the inner surface of the jumping side wall 40, as shown in FIG.4 (B). The groove-like depressions on the back side of the bulging protrusions 41 and 42 are crossed. Furthermore, a plurality of in-groove ribs 40 </ b> P crossing the groove-like depressions on the back side of the first bulging protrusion 41 are provided on the upper side of the first lower end lateral rib 40 </ b> D.

  As shown in FIG. 4A, the lower end portion of the jumping side wall 40 is provided with a second lower end lateral rib 40E extending in parallel with the first lower end lateral rib 40D, and the longitudinal length of the second lower end lateral rib 40E. A central engaging recess 40R is formed by cutting out the central portion in the direction. Further, a part of the second lower end lateral rib 40E is bent upward in a crank shape at both side portions of the center engaging recess 40R in the lower end portion of the jumping side wall 40, and a pair of protrusion engaging recesses 40N, 40N is formed, and the vertical rib 40L which connects the 1st and 2nd lower end horizontal ribs 40D and 40E is provided in each two places on both sides of each protrusion engaging recessed part 40N. Between the pair of protrusion engaging recesses 40N and 40N and the central engaging recess 40R, the vertical rib 40L, the first and second lower end horizontal ribs 40D and 40E, and the main plate portion 49 are vertically A pair of projecting piece engaging recesses 40M, 40M are provided that are surrounded by one side and the rear and communicate with the central engaging recess 40R. In addition, a locking protrusion 40U protrudes from the lower surface in each protrusion engaging recess 40M.

  The band-like region adjacent to the first lower end lateral rib 40D between the second bulging protrusions 42, 42 in the main plate portion 49 bulges outward smaller than the second bulging protrusion 42 and is stepped bulging. Part 40S. Then, holder fixing protrusions 43 and 43 are formed to protrude outward from two positions above the protrusion engaging recesses 40N and 40N in the stepped bulging portion 40S, and the holder fixing protrusions 43 and 43 and the first lower end are formed. The horizontal ribs 40D are opposed to each other with a gap in the vertical direction. A card holder (not shown) is attached to the holder fixing projections 43, 43, and the card can be held between the card holder and the outer surface of the jumping side wall 40.

  As shown in FIG. 4A, a first upper end lateral rib 40F extending across the entire left and right direction of the leap wall 13 is provided at a position near the upper end of the outer surface of the leap wall 40. The upper portion of the rib 40F is an upper end connecting portion 47 for connecting the jumping side wall 40 to the upper frame 20 so as to be rotatable. In the upper end connecting portion 47, the upper surface of the first upper end lateral rib 40F and the outer surface of the main plate portion 49 are connected by a plurality of upper end protrusions 40K, and the upper end protrusions 40K at both ends in the left-right direction of the jumping side wall 40 are connected. Side shaft portions 48 and 48 protrude laterally from 40K. Further, the upper end protrusions 40 </ b> K group and the upper end portions of the main plate portion 49 are curved in an arc shape centering on the axis of the side shaft portions 48, 48. Further, the main plate portion 49 between the upper end protrusions 40K, 40K is cut out at a plurality of positions in the left-right direction of the jumping side wall 40, and the upper surfaces of the upper end protrusions 40K, 40K facing each other at the notched portions. The connecting protrusion 47T protrudes from the end.

  A finger hook portion 44 is provided at the upper center of the jumping side wall 40. The finger hook portion 44 is configured by an annular rib protruding from an outer edge portion of a region where the entire horizontally long rectangle is bent downward.

  As shown in FIG. 4A, a pair of second upper end lateral ribs 40J and 40J parallel to the first upper end lateral rib 40F are provided on both sides of the finger hooking portion 44 on the outer surface of the jumping side wall 40. Protrusions are formed. The pair of second upper end lateral ribs 40J, 40J extend horizontally so as to approach each other from the side surface of the jumping side wall 40, and extend obliquely upward from the middle to be connected to the lower surface of the first upper end lateral rib 40F. Further, the horizontal portion of the second upper end lateral rib 40J is located at the upper ends of the first bulge protrusion 41 and the second bulge protrusion 42.

  As shown in FIG. 1, the bent side wall 30 is divided into an upper bent side wall 31 and a lower bent side wall 32 by a middle intermediate hinge 33 and can be folded in two. As shown in FIG. 5, the upper bent side wall 31 has a structure in which, for example, ribs are provided on a flat plate main plate portion 39 that is a horizontally long rectangle as a whole. Specifically, the upper bent side wall 31 is formed with a pair of side edge bulging projections 31C and 31C extending in the vertical direction by bulging both side edges of the main plate 39 outward. . Further, the lower end lateral rib 31B protrudes from the position near the lower end of the main plate portion 39, and communicates between the positions near the lower end of the side edge bulging protrusions 31C and 31C. Furthermore, the upper end lateral rib 31A protrudes from the upper end portion of the main plate portion 39, and communicates between the upper end portions of the side edge bulging protrusions 31C and 31C.

  An upper portion of the upper bent side wall 31 above the upper end lateral rib 31A is an upper end connecting portion 31F. In the upper end connecting portion 31F, the upper surface of the upper end lateral rib 31A and the outer surface of the main plate portion 39 are connected by a plurality of upper end protrusions 31E, and the upper end protrusion 31E group and the upper ends of the main plate portions 39 are arcuate. Is curved. Further, at a plurality of positions in the left-right direction of the upper bent side wall 31, the main plate portion 39 is notched between the upper end protrusions 31E, 31E, and the upper end protrusions 31E, 31E facing each other at the notched portions are opposed. The connection protrusion 31T protrudes from the surface.

  Intermediate hinge components 31K are provided at a plurality of positions in the left-right direction of the upper bent side wall 31 on the lower side of the lower lateral rib 31B in the outer surface of the main plate portion 39. The intermediate hinge constituting part 31K is formed by connecting a pair of opposed pieces 31N, 31N protruding from the main plate part 39 by a hinge shaft 31M. Further, side shaft portions 31P and 31P protrude from the lower ends of the opposing surfaces of the side edge bulging protrusions 31C and 31C on the same axis as the hinge shaft 31M.

  As shown in FIG. 6, the back surface side of the side edge bulging protrusion 31 </ b> C of the upper bent side wall 31 is recessed in a groove shape, and an in-groove rib 31 </ b> L is provided to cross the grooved recess in the width direction. ing. A locking hook 34 is provided at an intermediate position in the vertical direction of each side edge bulging protrusion 31C. The locking hook 34 extends a part of the wall portion on both sides of the upper bent side wall 31 in the side edge bulging protrusion 31 </ b> C to the inner surface side of the upper bent side wall 31, and then It is bent at right angles to the center in the left-right direction.

  As shown in FIG. 5, the lower bent side wall 32 has a structure in which ribs or the like are provided to reinforce a flat main plate portion 38 having a horizontally long rectangular shape that is substantially the same size as the upper bent side wall 31. It has become. Specifically, the lower bent side wall 32 includes side edge bulging protrusions 32C and 32C that bulge outside the main plate portion 38 at both side edge portions, and a lower end lateral rib 32B at the lower end portion. Yes. Further, an upper edge bulging protrusion 32 </ b> A bulging from the main plate 38 is provided at the upper end of the lower bent side wall 32. Further, as shown in FIG. 6, the lower bent side wall 32 is provided with an in-groove rib 32 </ b> L on the back side of each side edge bulging protrusion 32 </ b> C and locking hooks on both sides as in the upper bent side wall 31. 34, 34 are provided.

  As shown in FIG. 5, a plurality of intermediate hinge components 32 </ b> K corresponding to the intermediate hinge components 31 </ b> K of the upper bent side wall 31 are formed on the upper surface of the upper edge bulging protrusion 32 </ b> A of the lower bent sidewall 32. Is provided. The lower bent side wall 32 is formed by forming a round groove 32M opened on the outer surface side of the lower bent side wall 32 in a protruding wall 32N protruding upward from the upper surface of the upper edge bulging protrusion 32A. Further, on both sides of each intermediate hinge constituting portion 32K, an upper end protruding portion 32R formed by extending a part of the upper edge bulging protruding portion 32A upward is formed. Furthermore, a pair of cylindrical portions 32P and 32P are provided coaxially with the round groove 32M at both ends in the longitudinal direction on the upper surface of the upper edge bulging protrusion 32A. Then, the protruding wall 32N of each intermediate hinge component 32K is received between the opposing pieces 31N, 31N of the intermediate hinge component 31K, the hinge shaft 31M engages with the round groove 32M, and the side shaft portion 31P is the cylindrical portion. By engaging with 32P, the upper bent side wall 31 and the lower bent side wall 32 are rotatably connected, and an intermediate hinge 33 (see FIG. 1) is provided between the upper and lower bent side walls 31, 32. ) Is configured.

A lower side portion of the lower bent side wall 32 from the lower end lateral rib 32B is a lower end connecting portion 32F. The lower end connecting portion 32F is connected to the lower surface of the lower end connecting portion 32F and the outer surface of the main plate portion 38 by a plurality of lower end protruding portions 32E, and the lower end protruding portions 32E group and the lower end portions of the main plate portions 38 are formed in an arc shape. It is curved. Further, at a plurality of positions in the left-right direction of the lower bent side wall 32, the main plate portion 38 is notched between the lower end protrusions 32E and 32E, and the hinge shaft 32D is provided between the predetermined lower end protrusions 32E and 32E. Has been handed over.
As shown in FIG. 5, holder fixing protrusions 35, 35 protrude from two positions near the upper side of the lower end lateral rib 32 </ b> B on the outer surface of the lower bent side wall 32. Similarly to the jumping side wall 40, the card holder can be held between the holder fixing protrusions 35 and 35 and the lower end lateral rib 32 </ b> B also on the lower bent side wall 32.

  As shown in FIG. 7A, the rotating lid 50 has a structure in which a rib or the like is provided on a flat main plate portion 59 in which one side of a horizontally long rectangle is a corrugated portion 50W. Specifically, the corrugated portion 50W of the rotating lid 50 includes a first peak portion 54, a first valley portion 53, and a second peak portion in order from one end side to the other end side in the longitudinal direction of the rotating lid 50. 52 and the second valley 55. Further, a groove-like boundary line 50S is formed on the upper surface of the rotating lid 50 at a position where the upper surface opening of the folding container 10 is equally divided in the short side direction, and the boundary line 50S is formed on the lower surface of the rotating lid 50. The first lateral rib 50A is formed at the back side position. And the 1st peak part 54 and the 2nd peak part 52 make a part of main board part 59 protrude outside the boundary line 50S, and it is as shown in FIG. The outer edge rib 50L is formed in a protruding manner. On the other hand, as shown in FIG. 7A, the first valley portion 53 and the second valley portion 55 are configured such that a part of the main plate portion 59 is curved inward from the boundary line 50S, and the lower surface of the curved portion. As shown in FIG. 7B, the outer edge rib 50L is formed to protrude from the outer edge part, and the lower surface cover walls 53A and 55A are stretched over the whole or a part of the lower end part of the outer edge rib 50L. In addition, the 1st peak part 54 and the 2nd peak part 52 which are a part of the rotation lid | cover 50 are slightly inclined so that it may fall gradually toward those front-end | tips with the boundary line 50S as a boundary. Thereby, both boundary lines 50S and 50S are closed, and the first peak portion 54 and the second peak portion 52 of one rotating lid 50 are replaced with the second valley portion 55 and the first valley portion of the other rotating lid 50. It is possible to prevent the first peak portion 54 and the second peak portion 52 from protruding upwardly from the upper surfaces of the rotary lids 50 and 50 when fitted to 53.

  As shown in FIG. 7A, the second peak portion 52 and the first valley portion 53 have a waveform for exactly one cycle of the sine curve when they are combined. The first peak portion 54 has a substantially trapezoidal shape, and a slider accommodating portion 56 is formed in the first peak portion 54 by partially sinking the main plate portion 59. The slider accommodating portion 56 includes a side opening 56K (see FIG. 7B) that extends in the longitudinal direction of the rotating lid 50 and is open on one side of the rotating lid 50. The side opening 56K is arranged to be displaced inward from one side of the entire rotary lid 50, and the upper surface on the side opening 56K side of the slider accommodating portion 56 is covered with a retaining wall 56B. And the latching slider 60 shown to FIG. 8 (A) and FIG. 8 (B) is accommodated in the slider accommodating part 56 so that a slide is possible. The locking slider 60 has an operation ring 61 at the base end, a locking protrusion 64 at the distal end, and a pair of elastic arms 62 and 62 on both sides. Then, by operating the operation ring 61 exposed on the upper surface of the slider housing portion 56, the locking slider 60 slides while the elastic arms 62, 62 are slidably contacted with the inner surface of the slider housing portion 56, and the locking protrusions. 64 protrudes from the side opening 56K.

  As shown in FIG. 7B, a pair of first vertical ribs 50D and 50D are formed on the lower surface of the rotating lid 50 so as to protrude from both side edges, and the first horizontal ribs on the corrugated portion 50W side. One end of the pair of first vertical ribs 50D and 50D is connected by the second horizontal rib 50B extending in parallel with 50A, while the other end of the pair of first vertical ribs 50D and 50D is connected. And the third lateral rib 50F. The second vertical rib 50C extends on the lower surface of the second peak 52 and the first peak 54 so as to be orthogonal to the first horizontal rib 50A and the second horizontal rib 50B.

  Engagement through-holes 51 are formed through the rotary lid 50 at portions outside the first vertical ribs 50D. Further, as shown in FIG. 7A, a rotation connecting portion 50E is formed on the outer edge of the upper surface of the rotation lid 50 on the side opposite to the corrugated portion 50W. The rotation connecting portion 50E has a structure in which the hinge shaft 50M is passed between the shaft support portions 50N protruding upward from the main plate portion 59, and the hinge shaft 50M is protruded from the side surface of a part of the shaft support portions 50N. It has become.

  The jumping side wall 40, the bent side wall 30 and the rotating lid 50 are assembled to the upper frame 20 and the bottom base 11 as follows. That is, the upper end connecting portion 31F (see FIG. 5) of each bent side wall 30 is rotatably connected to the long side rotation support portion 20D (see FIG. 2B) of the upper frame 20, while the bent side wall 30 is bent. The lower end connection part 32F (refer FIG. 5) of the side wall 30 is assembled | attached to the hinge structure part 11D (refer FIG. 3 (A)) of the bottom part base 11 so that rotation was possible. As shown in FIG. 1, the upper and lower bent side walls 31, 32 are arranged in a standing posture along the same vertical plane, and the upper and lower bent side walls 31 are bent by the intermediate hinge 33. , 32 can be changed to a folding posture in which the outer surfaces face each other.

  The upper end connection part 47 (refer FIG. 4) of each jumping side wall 40 is connected with the short side rotation support part 20C (refer FIG. 2 (B)) of the upper frame 20 so that rotation is possible. And in the state which made both the folding side walls 30 and 30 into the standing posture, the raising side wall 40 can be changed into the standing posture along the vertical surface and the folding posture folded inside the upper frame 20. it can.

  As shown in FIG. 1, when the jumping side wall 40 is in a standing posture, the hooks 34 of the bent side wall 30 engage with the connecting pieces 45 </ b> T of the jumping side wall 40 and the bent side wall 30 and the jumping side wall 40. And the central engagement protrusion 40R, the protrusion engagement groove 40M, and the protrusion engagement recess 40N (see FIG. 4A) of the jumping side wall 40, respectively. The portion 11R and the locking projections 11K and 11M (see FIG. 3A) are engaged, and the jumping side wall 40 and the bottom base 11 are integrated. Further, a locking projection (not shown) provided on the lower surface of the front end of the locking projection 11K and a locking projection 40U (see FIG. 4A) provided on the lower surface in the projection engaging recess 40M are engaged. Thus, the jumping side wall 40 is held in the standing posture. Further, the rising wall 40 is disposed between the pair of bent side walls 30 and 30 to hold the bent side walls 30 and 30 in an upright posture, whereby the entire folding container 10 is assembled. Retained.

  On the other hand, the jumping side walls 40, 40 are disengaged upward from between the bent side walls 30, 30 when in the folded position, whereby the bent side walls 30, 30 can be folded. Therefore, when the folding side walls 30 and 30 are also folded after the jumping side walls 40 and 40, the lower surface of the upper frame 20 overlaps the upper surface of the bottom surface surrounding wall 11S in the bottom base 11, and the entire folding container 10 is shown in FIG. Folded. When the jumping side wall 40 is changed from the standing posture to the folded posture, the hooking side wall 40 is beaten from the outer surface side so that the locking protrusion (not shown) of the locking protrusion 11K and the protrusion engaging recess are formed. The engagement with the locking protrusion 40U provided on the lower surface within 40M is released, and the jumping side wall 40 can be rotated until it is in the folded position.

  The rotation connecting portion 50E of each rotation lid 50 is connected to the lid rotation support portion 20E on the upper surface of the upper frame 20. As shown in FIG. 1, the pair of rotating lids 50 and 50 are rotated to the outer side by about 270 degrees from the closed position covering the upper surface opening of the upper frame 20, as shown in FIG. It rotates between the fully opened position superimposed on the outside of the bent side wall 30. Further, when the rotary lids 50 and 50 are closed, as shown in FIG. 1, the first peak portion 54 and the second peak portion 52 of one rotary lid 50 are connected to the second valley portion of the other rotary lid 50. 55 and the first valley portion 53, the boundary lines 50S and 50S of both the rotating lids 50 and 50 are aligned on a straight line. Further, when the rotary lids 50 and 50 are closed, the upper surface protrusion 22 of the upper frame 20 is fitted into the engagement through holes 51 and 51 formed in the rotary lids 50, and the lower surface of the rotary lid 50 is The first vertical ribs 50D and 50D and the third horizontal rib 50F (see FIG. 7B) are fitted inside the upper frame 20, and the horizontal displacement of the rotary lids 50 and 50 with respect to the upper frame 20 is restricted. The Further, when the locking sliders 60, 60 are slid in a state where the rotary lids 50, 50 are closed, the locking protrusions 64 (see FIG. 8) of the locking slider 60 are moved to the closing holes 24 (FIG. 2) of the upper frame 20. The rotating lids 50 and 50 are held closed.

  Now, the above-described jumping side wall 40, upper and lower bent side walls 31, 32, and rotating lid 50 are different resins from the “frame member” according to the present invention and the “window plate member” according to the present invention. It is integrally formed with.

  Specifically, as shown in FIG. 4A, the jumping side wall 40 includes the pair of second bulging protrusions 42, 42, the stepped bulging portion 40S, and the second upper end lateral rib 40J. The central region 70 surrounded by the first upper end lateral rib 40F has a flat plate structure having no ribs other than the finger hook portion 44. A wall hole 71 (corresponding to the “inner opening of the frame member” of the present invention) is formed in substantially the entire region below the finger hook portion 44 except for the outer edge portion of the central region 70, and the wall hole 71 is a window. It is closed by the plate member 40G. Further, a portion of the jumping side wall 40 other than the window plate member 40G is a frame member 40H. The upper side portion of the wall hole 71 is curved so as to bulge downward corresponding to the finger hook portion 44, and the other side of the wall hole 71 is the second bulging protrusions 42, 42 or the stepped bulging portion. It extends parallel to 40S. The main plate portion 49 around the window plate member 40G in the frame member 40H corresponds to the “first resin plate member” according to the present invention, and the entire window plate member 40G corresponds to the “second resin” according to the present invention. It corresponds to a “plate member”. The same applies to other frame members 31H, 32H, and 50H and other window plate members 31G, 32G, and 50G described later.

  The window plate member 40G is molded from a transparent resin, and the frame member 40H is molded from a resin having higher strength than the window plate member 40G. Specifically, in the present embodiment, for the window plate member 40G, for example, a transparent random copolymer (a kind of polypropylene) obtained by copolymerizing a small amount of ethylene with propylene is used, while for the frame member 40H, for example, A block polymer (a kind of polypropylene) that is a mixture of homopolymer and ethylene / propylene rubber (EPR) is used. The Charpy impact strength (JISK7111, ISO179) and the flexural modulus (JISK7171, ISO178) are both higher for the resin constituting the frame member 40H than for the resin constituting the window plate member 40G. That is, the resin constituting the frame member 40H is higher in Charpy impact strength and flexural modulus than the resin constituting the window plate member 40G. The block polymer constituting the frame member 40H is not transparent (is opaque) like the random polymer constituting the window plate member 40G.

  As shown in FIG. 5, the upper bent side wall 31 is formed by a central region 72 surrounded by the pair of side edge bulging protrusions 31C and 31C, the upper end lateral rib 31A, and the lower end lateral rib 31B. It has a flat plate structure that does not have. A wall hole 73 is formed through substantially the entire area excluding the outer edge of the central region 72, and the wall hole 73 is closed by a transparent resin window plate member 31 </ b> G in the same manner as the jumping side wall 40. Further, a portion other than the window plate member 31G in the upper bent side wall 31 is an opaque resin frame member 31H. The upper and lower sides of the wall hole 73 extend in parallel along the upper end lateral rib 31A, and the left and right sides of the wall hole 73 are curved so as to bulge outward.

  Similar to the upper bent side wall 31, the lower bent side wall 32 is a central region 74 surrounded by a pair of side edge bulging protrusions 32C, 32C, an upper edge bulging protrusion 32A, and a lower end lateral rib 32B. However, it has a flat plate structure without ribs, and includes a wall hole 75 having the same shape as the wall hole 73 of the upper bent side wall 31, and the wall hole 75 is closed by a transparent resin window plate member 32G. Yes. Further, a portion of the lower bent side wall 32 other than the window plate member 32G is an opaque resin frame member 32H.

  As shown in FIG. 7B, the rotating lid 50 has a central region 76 surrounded by the pair of first vertical ribs 50D and 50D and the second and third horizontal ribs 50B and 50F. A wall hole 77 is formed in substantially the entire region excluding the outer edge of the central region 76. Specifically, the main plate portion 59 constituting the central region 76 is formed with an inclined portion 78 that gradually protrudes toward the wall hole 77 around the wall hole 77, and from the tip of the inclined portion 78. A wall hole 77 is formed in the flange portion 79 that protrudes inward and is parallel to the entire main plate portion 59. And the wall hole 77 is obstruct | occluded by the transparent resin window board member 50G, and parts other than the window board member 50G among the rotation lids 50 become the opaque resin frame members 50H.

  The wall hole 77 is curved on one side of the second lateral rib 50B side corresponding to the second peak 52 and the first valley 53 of the corrugated part 50W, and the other three sides are the upper bent side walls. It has the same shape as the three sides of the 31 wall holes 73.

  FIG. 11 shows a cross-sectional shape of the opening edge of the wall hole 75 in the lower bent side wall 32. As shown in the figure, an opening edge protrusion 80 is formed on the outer surface of the lower bent side wall 32 so as to project over the entire opening edge of the wall hole 75. As shown in an enlarged view in FIG. 12, the opening edge protrusion 80 extends from the outer surface of the main plate portion 38 by the same amount as the thickness of the main plate portion 38 constituting the central region 74 of the lower bent side wall 32. The front end flat surface 80B parallel to the outer surface of the main plate portion 38 is provided at the front end in the protruding direction. In addition, an inclined surface 80A is provided outside the tip flat surface 80B in the opening edge protrusion 80, while an inside surface 80C of the wall hole 75 (the “thick surface” of the present invention) is provided inside the tip flat surface 80B. The inner side surface 80C and the tip flat surface 80B are orthogonal to each other. A plate thickness surface 32Z parallel to the plate thickness direction of the window plate member 32G is fixed to the inner side surface 80C of the wall hole 75.

  A support wall 81 extending from the main plate portion 38 and extending from the inner side surface 80 </ b> C of the wall hole 75 to the inside of the wall hole 75 is provided over the entire opening edge of the wall hole 75. The support wall 81 is continuous with the inner surface of the main plate portion 38 (the surface facing the inside of the folded container 10 in the assembled state) and gradually approaches the window plate member 32G toward the tip of the support wall 81. A curved inclined surface 81A and a fixing surface 81B joined to the window plate member 32G and parallel to the inner surface of the main plate portion 38 are provided. The inclined surface 81A and the fixing surface 81B are acute at the tip of the support wall 81. Crossed. In addition, the fixing surface 81B is slightly shifted from the outer surface of the main plate portion 38 toward the inner surface side of the main plate portion 38, and the first protrusion 82 protrudes from a position near the tip of the fixing surface 81B. The first protrusion 82 is rounded as a whole, and has a cross-sectional shape in which an ellipse is halved at the center in the minor axis direction. By providing the first protrusion 82, a difference in wall thickness between the proximal end portion of the tapered support wall 81 and the distal end portion having the first protrusion 82 is suppressed, and molding due to sink marks at the time of forming the frame member 32H is performed. Distortion can be suppressed and the tip of the support wall 81 can be reinforced. Further, by arranging the first protrusion 82 on the fixing surface of the support wall 81 to the window plate member 32G, the fixing area between the window plate member 32G and the support wall 81 including the first protrusion 82 is increased. The 1st protrusion 82 will also bite into the window board member 32G, and the coupling strength of the window board member 32G and the support wall 81 will become high.

  As shown in FIG. 11, a stepped portion 84 is provided at a position near the outer edge portion of the inner surface of the window plate member 32 </ b> G facing the inner side of the folding container 10, and the thickness of the outer edge portion of the lower bent side wall 32. However, it is smaller than the overall plate thickness excluding the outer edge. Then, as shown in FIG. 12, the outer edge portion of the window plate member 32G is fixed to the inner side surface 80C and the fixing surface 81B, and the outer surface of the window plate member 32G is flush with the tip flat surface 80B of the opening edge protrusion 80. It has become. In addition, an outer edge groove 83M fitted to the first protrusion 82 is recessed and formed on the inner surface of the window plate member 32G, and a second shape having the same shape as the first protrusion 82 is formed on the back surface side of the outer edge groove 83M. A protrusion 83T is formed to protrude. And the part which became thin by the 1st protrusion 82 biting in the window board member 32G is reinforced with the 2nd protrusion 83T of the window board member 32G. Furthermore, as shown in FIG. 11, the inner surface of the window plate member 32 </ b> G is arranged such that the thick wall portion inside the stepped portion 84 is shifted outward from the inner surface of the main plate portion 38 constituting the central region 74. Yes. Further, the outer surface of the window plate member 32G is located on the back side from the front end surfaces of the side edge bulging protrusion 32C, the upper edge bulging protrusion 32A and the lower end lateral rib 32B surrounding the central region 74.

  The lower bent side wall 32 described above is a part of the injection mold 100 as shown in FIG. 14 after the frame member 32H is first molded by the injection mold 100 shown in FIG. The window plate member 32G is manufactured by injecting a transparent resin into a molding space provided by moving the movable core 101 back. At this time, the first protrusion 82 is formed before the core back by the annular groove provided in the movable core 101, and the second protrusion 83T is formed after the core back. By the way, in the lower bent side wall 32, as shown in FIG. 12, the end on the support wall 81 side of the inner side surface 80 </ b> C of the wall hole 75 is positioned in the middle in the thickness direction of the opening edge of the wall hole 75. Thus, in the process in which the frame member 32H is molded from the molten resin, solidification of the molten resin is slowest at the end of the inner side surface 80C on the support wall 81 side. As a result, when the lower bent side wall 32 is formed in the order of the frame member 32H and the window plate member 32G as described above, the inner side surface 80C of the wall hole 75 is caused by the pressure of the molten resin for forming the window plate member 32G. A retaining projection 89 that bites into the end portion on the support wall 81 side is integrally formed on the plate thickness surface 32Z of the window plate member 32G. Then, the retaining protrusion 89 increases the coupling force between the frame member 32H and the window plate member 32G.

  Although not shown, the opening edges of the inner openings 71 and 73 of the jumping side wall 40 and the upper bent side wall 31 have the same structure as the opening edge of the inner opening 75 in the lower bent side wall 32 described above. Further, in the rotating lid 50, as shown in FIG. 15, a stepped surface 79D is formed by recessing the distal end side of the outer surface of the collar 79, and the outer edge portion of the window plate member 50G is formed on the rotating lid 50. It is integrally formed in a state fitted from the outer surface side to the inner side of the stepped surface 79D of the flange 79. And the part arrange | positioned under the window-plate member 50G among the collar parts 79 becomes the support protrusion 81 demonstrated in the said lower side wall 32, and it engages with the protrusion 82 in the support protrusion 81. Is formed, and an outer edge protrusion 83T corresponding to the engaging protrusion 82 is formed on the window plate member 50G. Further, a retaining projection 89 that bites into the end portion on the support wall 81 side of the stepped surface 79D is integrally formed on the plate thickness surface 50Z of the window plate member 50G.

  The description regarding the structure of the folding container 10 of this embodiment is above. Next, the effect of the folding container 10 is demonstrated. When the luggage is accommodated in the folding container 10 and the rotary lids 50 and 50 are closed and the folding container 10 is stored together with the luggage at the transport destination, in the folding container 10 of the present embodiment, all surfaces other than the bottom surface Since the transparent window plate members 31G, 32G, 40G, and 50G are provided, the luggage in the folding container 10 can be seen through with the rotary lids 50 and 50 closed. Further, when a plurality of packages are accommodated in the folding container 10 and the rotary lids 50 and 50 are fully opened as shown in FIG. 9 and the packages are taken out from the folding container 10 as necessary, the rotary lid is used. 50 window plate member 50G and window plate member 31G of upper folding side wall 31 overlap, and the inside of folding container 10 can be seen through through these window plate members 31G, 50G, so that rotating lid 50 is fully opened. Even so, the luggage in the folding container 10 can be confirmed through fluoroscopy, as in the fully closed state. Further, the frame members 31H, 32H, 40H, and 50H around the window plate members 31G, 32G, 40G, and 50G are formed of a resin that is stronger than the window plate members 31G, 32G, 40G, and 50G, and these high-strength frames are formed. Since the members 31H, 32H, 40H, and 50H are connected to other parts such as the bottom base 11 or the upper frame 20, the entire bent side wall, the top side wall, and the like are made of the same transparent resin for perspective. Compared with the molded folding container, the strength of the folding container 10 as a whole is improved.

  When not in use, the folding container 10 of the present embodiment is folded in the order of a pair of raised side walls 40, 40 and a pair of folded side walls 30, 30 (see FIG. 10). it can. Here, the engagement between the locking projection 40U (see FIG. 4A) of the jumping side wall 40 and the locking projection (not shown) of the locking projection 11K (see FIG. 3A) on the bottom base 11 is released. In order to do so, the window plate member 40G of the jumping side wall 40 may be beaten from the outside. However, in the wall structure of the folding container 10 of the present embodiment, the plate surface of the window plate member 40G (see FIG. 12) is formed on the inner surface of the wall hole 71 in the frame member 40H of the jumping side wall 40 (see reference numeral 80C in FIG. 12). In addition, the support wall (see reference numeral 81 in FIG. 12) integrally formed with the frame member 40H is fixed to the inner surface of the window plate member 40G, so that it is applied to the window plate member 40G. The load can be received by the entire thickness of the outer edge portion of the window plate member 40G. Thereby, the wall structure of the jumping side wall 40 is higher in strength than the conventional wall structure and is not punched from the frame member 40H from the frame member 40H. Further, the first protrusion (see reference numeral 82 in FIG. 12) of the frame member 40H bites into the window plate member 40G, and the retaining protrusion (see reference numeral 89 in FIG. 12) of the window plate member 40G bites into the frame member 40H. Therefore, the coupling force between the window plate member 40G and the frame member 40H is high, so that the window plate member 40G is hit from the inner surface side of the jumping side wall 40, and the window plate members 31G, 32G, 40G, 50G are loaded from the inside. Breakage of the fixing portion between the window plate members 31G, 32G, 40G, and 50G and the frame members 31H, 32H, 40H, and 50H due to the pressing can be prevented. In addition, the support wall 81 that supports the window plate members 31G, 32G, 40G, and 50G (see FIGS. 12 and 15 for the support wall 81 of the lower bent side wall 32 and the rotating lid 50, the upper side wall 40 and the upper bent side wall). Since the support wall of the side wall 31 is provided with the inclined surface 81A that is inclined so as to gradually approach the window plate member 32G toward the tip, a situation in which foreign matter is caught on the support wall 81 is also prevented. be able to.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

(1) In the above embodiment, the folding container 10 is exemplified as the “transport container” of the present invention, but the present invention may be applied to a container that cannot be folded.

(2) Like the above-described rotating lid 50 of the folding container 10, the “conveying container wall” of the present invention is attached to a lid that is rotatably connected to the container or a lid that is detachably attached to the container. “Structure” may be applied.

(3) In the embodiment described above, a part of the frame members 31H, 32H, 40H, 50H forms the “first resin plate member” according to the present invention, while the “second resin plate member” according to the present invention. The window plate members 31G, 32G, 40G, and 50G are configured to fit inside the frame members 31H, 32H, 40H, and 50H, but the wall structure of the transport container according to the present invention is not limited to this. For example, the side wall of the “conveying container” is divided into a plurality of wall portion constituting bodies, and the plate portion of one wall portion constituting body between the adjacent wall portion constituting bodies is defined as a “first resin plate member”. The plate portion of the other wall portion structure may be a “second resin plate member”.

(4) In the above embodiment, the support wall 81 is fixed to the inner surface of the window plate member 32G. However, the “support wall” according to the present invention is fixed to the outer surface of the second resin plate member. It may be.

(5) In the above-described embodiment, the wall holes 71, 73, and 75 are rectangular. However, the wall hole is not limited to a rectangle, and may be a circle or a polygon other than a rectangle.

(6) The constituent resin of the window plate member of the above embodiment is colorless and transparent. However, if the inside of the folding container can be seen through, the window plate member may be colored and transparent, colorless and translucent, and colored and translucent. Good. Further, the constituent resin of the frame member of the above embodiment is opaque, but if it is stronger than the constituent resin of the window plate member, it does not need to be opaque, and is colorless and transparent, colored and transparent, colorless and translucent, and colored and semi-transparent. It may be transparent. Further, in the above-described embodiment, the constituent resin of the frame member of the constituent resin of the window plate member is polypropylene, but may be a resin other than polypropylene or may be different from each other. For example, the present invention includes a case in which transparent polyethylene is used for the window plate member and transparent and high-strength polycarbonate is used for the frame member.

(7) Further, the resin for the window plate member and the resin for the frame member are made to have the same molecular structure, and the reinforcing material (for example, filler such as glass fiber, silica, talc, additive, nucleating agent) Etc.) may be compounded only with the resin for the frame member, or may be compounded more with the resin for the frame member to make the strength of the frame member higher than that of the window plate member.

10 Folding container (conveying container)
11 bottom base 20 upper frame 30 bent side wall 31 upper bent side wall 31G, 32G, 40G, 50G window plate member 31H, 32H, 40H, 50H frame member 32 lower bent side wall 32Z plate thick surface 33 intermediate hinge 40 jumping up Side wall 80C Inner side (thick plate)
81 Support wall 81A Inclined surface 81B Adhering surface 82 1st protrusion 83T 2nd protrusion 89 Retaining prevention protrusion

Claims (5)

Of the first and second resin plate members, the first and second resin plate members are integrally molded with different resins so that the plate thickness surfaces parallel to the plate thickness direction are fixed to each other. Or in the wall structure of the transport container as the container constituting wall on the upper surface,
A support wall that protrudes from an edge near the second resin plate member on one side of the front and back surfaces of the first resin plate member and is fixed to an edge of one surface of the front and back surfaces of the second resin plate member And the surface of the support wall opposite to the fixing surface with the second resin plate member is inclined so as to gradually approach the second resin plate member toward the tip of the support wall. A wall structure of a transport container, characterized by an inclined surface.   The wall structure of the transport container according to claim 1, wherein a first protrusion is formed so as to protrude along a front end edge of a fixing surface of the support wall with the second resin plate member.   A second protrusion having the same shape as the first protrusion is formed at a position facing the first protrusion on the opposite surface of the second resin plate member to the fixing surface with the support wall. The wall structure of the transport container according to claim 2. In the transport container, a pair of jumping side walls and a pair of bent side walls are disposed oppositely between a bottom base constituting the bottom and an upper frame constituting the upper part,
The jumping side wall is pivotally connected to the upper frame at the upper end,
The bent side wall is pivotally connected to the upper frame and the bottom base at both upper and lower ends, and an intermediate hinge provided at the center in the vertical direction to the upper bent side wall and the lower bent side wall. It is divided into two and can be folded inward.
A folding container that can be folded in the order of the pair of jumping side walls and the pair of folding side walls;
At least one of the jumping side wall, the upper bent side wall, and the lower bent side wall includes a frame member that includes the entire outer edge portion thereof, and a window plate member that closes the inner opening of the frame member; Are molded integrally with different resins,
The window plate member forms the second resin plate member as a whole and is formed of a transparent or translucent resin, and the frame member forms the first resin plate member around the inner opening and the frame member. The wall structure of the transport container according to any one of claims 1 to 3, wherein the wall structure is formed of a resin having a strength higher than that of the window plate member.   2. A retaining protrusion that bites into an end portion on the support wall side of the plate thickness surface of the first resin plate member is integrally formed on the second resin plate member. The wall structure of the transport container according to any one of claims 1 to 4.

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