JP5843311B2 - Folding container - Google Patents

Description

  The present invention relates to a folding container whose side wall is composed of a plurality of plate-shaped resin parts.

  2. Description of the Related Art Conventionally, as this type of folding container, a container having a transparent plate-like resin part as a whole so that the contents can be seen through is known (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 11-147526 (paragraphs [0006] and [0017])

  However, since the addition of a reinforcing material is limited for a transparent resin, the above-described conventional folding container has a problem of insufficient strength of the transparent plate-shaped resin component.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a folding container capable of seeing through the contents from the outside and having higher strength than before.

The folding container according to the invention of claim 1 made to achieve the above object has a rectangular parallelepiped box shape as a whole, and between the bottom base constituting the bottom and the upper frame constituting the top, 1 A pair of jumping side walls and a pair of bent side walls are arranged opposite to each other, and the jumping side walls are rotatably connected to the upper frame at the upper end portion, while the bent side walls are located at the upper and lower ends. An intermediate hinge that is pivotally connected to the frame and the bottom base and that is 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 and jumped up. In a folding container that can be folded from the assembled state in which the side wall and the bent side wall stand up into a folded state in the order of a pair of raised side walls and a pair of folded side walls, At least one of a plurality of plate-like resin parts including a curved side wall and a lower bent side wall Plate-like resin component includes a frame member including the entire outer edge, and a transparent or semitransparent molded at low strength resin from the frame member and the window plate is fixed in a state of closing the inner opening of the frame member members It is characterized by being composed of

According to a second aspect of the present invention, there is provided the folding container according to the first aspect, wherein the pair of rotating lids are rotatably connected to the pair of opposed edges of the upper frame and can open and close the upper surface opening of the upper frame. It is provided as a plate-like resin component, and at least one of the rotating lids is characterized in that a window plate member is fixed to a frame member .

According to a third aspect of the present invention, in the folding container according to the second aspect, the pivot lid is configured to be openable and superposed on the outer side of the upper folding side wall, and the overlapping pivot lid and the upper folding side wall are overlapped. However, it has a feature in that a window plate member is fixed to the frame member, and the inside can be seen through the rotation lid and the window plate member on the upper bent side wall.

According to a fourth aspect of the present invention, in the folding container according to any one of the first to third aspects, the plate-shaped resin component group that overlaps the bottom base in the folded state includes a window plate member on the frame member. The bottom base can be seen through through the window plate members of the plate-like resin parts.

According to a fifth aspect of the present invention, in the folding container according to any one of the first to fourth aspects, at least one plate-like resin component of the upper folded side wall and the lower folded side wall is a frame member. The window plate member is fixed to the frame member, and the window plate member is arranged so as to be shifted to the outer surface side from the peripheral portion of the inner opening on the inner surface of the frame member.
A sixth aspect of the present invention is the folding container according to any one of the first to fifth aspects, wherein the plate-like resin component having the window plate member is rotatably connected to another plate-like resin component. It is characterized in that at least one of the plurality of hinges is disposed between both end positions of the window plate member in the direction of the rotation axis of the hinges.

[Invention of Claim 1]
The folding container according to claim 1 folds the entire folding container by folding and folding the pair of folding side walls in two after turning the pair of the rising side walls around the upper end and folding them. Can be. Here, in the folding container of the present invention, at least one plate-like resin component among the plurality of plate-like resin components including the jumping side wall, the upper side folding side wall, and the lower side folding side wall is the frame member. Since the window plate members having different strengths are fixed, and the window plate member is formed of 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 having a higher strength 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, so that it is a plate shape for perspective. Compared with the conventional folding container which shape | molded the resin part whole with the same transparent resin, the intensity | strength of the whole folding container improves. 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.

[Invention of claim 2]
In the folding container according to claim 2, since the pair of rotating lids as plate-like resin parts capable of opening and closing the upper surface opening of the upper frame has the above-mentioned window plate member, the rotating lid is closed. Thus, the contents can be seen through the window plate member of the rotating lid.

[Invention of claim 3]
In the folding container according to the third aspect, the inside of the folding lid and the upper folding side wall can be seen through through the pivoting lid and the upper folding side wall in a state of being overlapped with the upper folding side wall. In either the closed state or the closed state, the contents in the folding container can be visually confirmed through fluoroscopy.

[Invention of claim 4]
According to the folding container of claim 4, the plate-shaped resin component group that overlaps the bottom base in the folded state is formed by fixing the window plate member to the frame member, and the bottom portion passes through the window plate member of the plate-shaped resin component. Since the base can be seen through, it can be visually confirmed whether or not foreign matter or luggage remains on the bottom base in the folded state.

[Invention of claim 5]
In the structure of Claim 5, since the window board member of an upper side folding side wall and a lower side folding side wall is the arrangement | positioning shifted | deviated to the outer surface side of the peripheral part of an inner side opening among the inner surfaces of a frame member, it is rotating The upper side wall of the upper side wall does not slide on the window plate members of the upper side wall and the lower side wall. This prevents the window plate member from being damaged.

The perspective view of the folding container which concerns on 1st 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 The perspective view of the state which opened the rotation lid of the folding container of 2nd Embodiment

[First Embodiment]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the folding container 10 of the present embodiment is a resin molded product having a rectangular parallelepiped box shape as a whole, and includes a bottom base 11 constituting the bottom and an upper frame 20 constituting the top. A pair of bent side walls 30, 30 and jumping side walls 40, 40 are assembled between each other, and a pair of rotating lids 50, 50 are assembled on the upper surface of the upper frame 20. ing.

  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 are opposed to each other with the groove opening sandwiched in the groove shape structure are such that the outer frame side wall 20A extends longer than the inner frame side wall 20B and the inner frame side wall in the short side portion of the upper frame 20 The lower end of 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.

The above-described jumping side wall 40, the upper and lower bent side walls 31, 32, and the rotating lid 50 correspond to the “plate-shaped resin component” of the present invention, and each has a window plate member fixed to the frame member. It becomes.

  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. And the inner side opening 71 is formed in the substantially whole area except the outer edge part of the center area | region 70 below the finger hook part 44, and the inner side opening 71 is obstruct | occluded by the window board member 40G which concerns on this invention. Further, the portion of the jumping side wall 40 other than the window plate member 40G is a frame member 40H according to the present invention. The upper side portion of the inner opening 71 is curved so as to bulge downward corresponding to the finger hook portion 44, and the other sides of the inner opening 71 are the second bulging protrusions 42, 42 or the stepped bulging portion. It extends parallel to 40S.

  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. And the inner side opening 73 is formed in the substantially whole area except the outer edge part of the center area | region 72, The inner side opening 73 is obstruct | occluded by the transparent resin window board member 31G similarly to the jumping side wall 40. FIG. 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 side and the lower side of the inner opening 73 extend in parallel along the upper end lateral rib 31A, and the left and right sides of the inner opening 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 an inner opening 75 having the same shape as the inner opening 73 of the upper bent side wall 31, and the inner opening 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. An inner opening 77 is formed in substantially the entire area 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 inner opening 77 around the inner opening 77, and from the tip of the inclined portion 78. An inner opening 77 is formed in a collar portion 79 that protrudes inward and is parallel to the entire main plate portion 59. And the inner side opening 77 is obstruct | occluded by the colorless and transparent resin-made window-plate member 50G, and parts other than the window-plate member 50G among the rotation lids 50 become the opaque resin-made frame members 50H.

  In addition, the inner opening 77 is curved so that one side of the second lateral rib 50B side corresponds to the second peak portion 52 and the first valley portion 53 of the corrugated portion 50W, and the other three sides are upper bent side walls. It has the same shape as the three sides of the inner opening 73 of 31.

  FIG. 11 shows a cross-sectional shape of the opening edge of the inner opening 75 in the lower bent side wall 32. As shown in the figure, an outer surface opening edge protrusion 80 is formed to project over the entire opening edge of the inner opening 75 on the outer surface of the lower bent side wall 32. As shown in an enlarged view in FIG. 12, the outer surface opening edge protrusion 80 has an outer surface of the main plate portion 38 that is substantially the same as the thickness of the main plate portion 38 that forms the central region 74 of the lower bent side wall 32. The tip flat surface 80B parallel to the outer surface of the main plate portion 38 is provided at the tip in the protruding direction. Further, an inclined surface 80A is provided outside the tip flat surface 80B in the outer surface opening edge protrusion 80, while a protrusion inner side surface 80C orthogonal to the tip flat surface 80B is provided inside the tip flat surface 80B. ing.

  A support projecting wall 81 extending from the main plate portion 38 and projecting from the projecting inner side surface 80 </ b> C of the outer surface opening edge projecting portion 80 to the inside of the inner opening 75 is provided over the entire opening edge of the inner opening 75. The support protruding wall 81 is continuous with the inner surface of the main plate portion 38 (the surface facing the inner side of the folded container 10 in the assembled state) and gradually toward the outer surface side of the main plate portion 38 toward the tip of the support protruding wall 81. A curved surface 81A that is curved toward the surface, and a support surface 81B that is orthogonal to the projection inner side surface 80C of the outer surface opening edge projection 80, and the curved surface 81A and the support surface 81B are at the tip of the support projection wall 81. Crosses at an acute angle. Further, the support surface 81B is slightly displaced from the outer surface of the main plate portion 38 toward the inner surface side of the main plate portion 38, and the engaging protrusion 82 protrudes from a position near the tip of the support surface 81B. The engaging 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.

  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 protrusion inner side surface 80C and the support surface 81B, and the outer surface of the window plate member 32G is fixed to the tip flat surface 80B of the outer surface opening edge protrusion 80. It is the same. Further, an outer edge groove 83M fitted to the engaging protrusion 82 is recessed and formed on the inner surface of the window plate member 32G, and the outer edge protrusion having the same shape as the engaging protrusion 82 is formed on the back surface side of the outer edge groove 83M. A strip 83T is formed to protrude. 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 formed by molding the frame member 32H with the injection mold 100 shown in FIG. 13, and then a part of the injection mold 100 as shown in FIG. The window core member 32G is manufactured by injecting a transparent resin into a molding space provided by core-backing the molding core 101.

  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, as shown in FIG. 15, the rotating lid 50 is provided with a stepped portion 79 </ b> D by recessing the front end side of the outer surface of the collar 79, and the outer edge portion of the window plate member 50 </ b> G is formed on the rotating lid 50. It is integrally formed in a state fitted from the outer surface side to the inside of the stepped portion 79D of the flange portion 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.

  This completes the description of the configuration of the folding container 10 of the present invention. 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.

  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 this, even if the window plate member 40G of the jumping side wall 40 is beaten from the outside, in this embodiment, the window plate member 40G of the jumping side wall 40 is folded by the support protruding wall (see reference numeral 81 in FIG. 12). Since it is supported from the inside of the tatami container 10, the window plate member 40G is never punched out of the frame member 40H by striking. Further, when the jumping side wall 40 is rotated and folded, the side surface of the jumping side wall 40 can be in sliding contact with the inner surface of each folding side wall 30, but in this embodiment, the upper and lower bent side walls 31 are provided. The window plate members 31G and 32G provided in the outer wall 32 and 32G are arranged so as to be shifted outward from the inner surfaces of the bent side walls 31 and 32 (see FIG. 11), and therefore jump to the inner surfaces of the window plate members 31G and 32G. Scratching due to sliding contact with the side wall 40 is prevented. Further, in the folded state of the folding container 10, the inner surface of the upper folding side wall 31 faces upward and is superimposed on the jumping side wall 40, and the inner surface of the lower folding side wall 32 faces downward and overlaps the bottom base 11. However, also in this case, since the window plate members 31G and 32G are arranged so as to be shifted outward from the inner surfaces of the bent side walls 31 and 32, the jumping side walls 40 are formed on the inner surfaces of the window plate members 31G and 32G. Further, it is possible to prevent scratches due to sliding contact with the bottom base 11.

  Further, since the window plate members 31G, 32G, and 40G on the side walls are disposed at positions retracted inward from the outer surfaces of the bottom base 11 and the upper frame 20, the plurality of folding containers 10 and 10 are disposed side by side. Even so, the window plate members 31G, 32G, 40G of the one folding container 10 do not come into contact with the other folding container 10, and the outer surfaces of the window plate members 31G, 32G, 40G are prevented from being damaged. Can be removed. Furthermore, since the window plate member 50G is disposed below the upper surface of the rotary lid 50 in the rotary lid 50, the folding lid 50 is fully opened when the folding containers 10 and 10 are overlapped with each other. When the upper folded side wall 31 is overlaid on the outer surface of the upper folded side wall 31, the upper folded side wall 31 and the bottom surface of the other folding container 10 do not come into contact with the window plate member 50G. It is also prevented from sticking.

  Further, when the folding container 10 of the present embodiment is in the folded state, the upper folding side wall 31, the lower folding side wall 32, the jumping side wall 40, and the window plate members 31 </ b> G, 32 </ b> G, 40 </ b> G of the rotating lid 50. 50G overlaps in the vertical direction, and the bottom surface of the bottom base 11 can be seen through the window plate members 31G, 32G, 40G, and 50G. Thereby, it is possible to easily visually check whether or not foreign matter such as luggage, a delivery note, a manual, or the like is left in the folded container 10.

As described above, in the folding container 10 of the present embodiment, the upper and lower bent side walls 31 and 32, the jumping side wall 40, and the rotating lid 50 are the frame members 31H, 32H, 40H, and 50H and the window plate member. It is a resin core-back molded product having a strength different from that of 31G, 32G, 40G, and 50G, and the window plate members 31G, 32G, 40G, and 50G are formed of a transparent resin. , 40G, 50G can be seen through. The frame members 31H, 32H, 40H, and 50H are formed of a resin having a higher strength than the window plate members 31G, 32G, 40G, and 50G, and the high-strength frame members 31H, 32H, 40H, and 50H are formed on the bottom base 11 or Since it is connected to other parts such as the upper frame 20, the folding side wall, the rising side wall, etc. are folded in comparison with a conventional folding container formed of the same transparent resin. The strength of the entire container 10 is improved. That is, according to the present embodiment, it is possible to provide the folding container 10 that can be seen through from the outside and that has higher strength than the conventional container.

[Second Embodiment]
As shown in FIG. 16, the folding container 10V of the present embodiment has an up-and-down side wall 40V and upper and lower folding side walls 31V and 32V that are vertically movable as compared to the folding container 10 of the first embodiment. The direction is getting smaller. About another structure, it is the same as the folding container 10V of 1st Embodiment.

  In the folding container 10V of the present embodiment, when the rotating lid 50 is fully opened, the rotating lid 50 is overlaid on the outer surfaces of the upper and lower bent side walls 31V, 32V. Then, the window plate member 50G of the rotating lid 50 overlaps the outside of the window plate member 31G of the upper bent side wall 31V, and the frame member of the rotating lid 50 is arranged outside of the window plate member 32G of the lower bent side wall 32V. 50H overlaps. As a result, when the rotary lid 50 is fully opened, the window plate member 32G on the lower bent side wall 32V cannot be seen through the folding container 10V, but the window plate member 31G on the upper bent side wall 31V. Through the window plate member 50G of the rotary lid 50, the inside of the folding container 10V can be seen through.

[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) Although the folding containers 10 and 10V of the first and second embodiments include the rotating lids 50 and 50, the present invention is applied to a folding container that does not include the rotating lids. Also good.

(2) The folding containers 10 and 10V of the first and second embodiments are provided with window plate members 31G, 32, and 40G on all of the upper and lower bent side walls 31 and 32 and the jumping side wall 40, respectively. However, the window plate member may be provided only on a part of the upper and lower bent side walls and the upper side wall.

(3) 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 transparent, colorless translucent, and colored 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.

(4) Further, the resin for the window plate member and the resin for the frame member are made to be resins having the same molecular structure, and reinforcing materials (for example, fillers such as glass fiber, silica, talc, additives, nucleating agents) 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, 10V folding container 11 bottom base 20 upper frame 30, 30V folding side wall 31, 31V upper folding side wall 31G, 32G, 40G, 50G window plate member 31H, 32H, 40H, 50H frame member 32, 32V lower side folding Curved side wall 33 Intermediate hinge 40, 40V Jumping side wall 50 Rotating lid 71, 73, 75, 77 Inside opening

Claims (6)

The whole has a rectangular parallelepiped box shape, and a pair of jumping side walls and a pair of bent side walls are arranged opposite to each other between the bottom base constituting the bottom and the 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.
In the folding container that can be folded from the assembled state in which the rising side wall and the bent side wall stand up, and folded in the order of the pair of raised side walls and the pair of bent side walls,
At least one of the plate-like resin components including a plurality of plate-like resin components including the jumping side wall, the upper bent side wall, and the lower bent side wall is a frame member including the entire outer edge portion, and transparent. Alternatively , a folding container comprising a window plate member that is formed of a resin that is translucent and has a lower strength than the frame member and that is fixed in a state in which an inner opening of the frame member is closed. A pair of rotating lids that are rotatably connected to a pair of opposing edges of the upper frame and that can open and close the upper surface opening of the upper frame are provided as the plate-shaped resin parts, and at least one of the rotating lids The folding container according to claim 1 , wherein the window plate member is fixed to the frame member . The rotating lid is configured to be opened and superposed on the outer side of the upper bent side wall, and the overlapping rotating lid and the upper bent side wall fix the window plate member to the frame member. becomes, folding container according to claim 2, characterized in that the internal through said window plate member thereof pivotal lid and the upper folding side walls and a possible transparent. The plate-like resin component group that overlaps the bottom base in the folded state is formed by fixing the window plate member to the frame member, and the bottom base is seen through the window plate member of the plate-like resin component. The folding container according to any one of claims 1 to 3, wherein the folding container is possible. At least one of the upper bent side wall and the lower bent side wall is formed by fixing the window plate member to the frame member, and the window plate member is formed on the inner surface of the frame member. The folding container according to any one of claims 1 to 4, wherein the folding container is arranged so as to be shifted to an outer surface side from a peripheral portion of the inner opening. At least one of a plurality of hinges that rotatably connect the plate-shaped resin component having the window plate member to the other plate-shaped resin components, both end positions of the window plate member in the rotation axis direction of the hinges The folding container according to any one of claims 1 to 5, wherein the folding container is disposed between the two.

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