JP6526445B2 - Container with flap - Google Patents

Description

  The present invention relates to a flapped container in which a strip-shaped flap pivotally connected to an upper end portion of a side wall of a container main body projects inward from the side wall at one end of its pivoting range.

  Conventionally, in this type of flapped container, the flaps are generally pivoted between a first posture projecting inward from the side wall and a second posture standing on the side wall (see, for example, Patent Document 1).

JP, 2009-255932, A (Drawing 1, Drawing 10)

  However, in the conventional flapped container, even if the flap is opened to the second position, there is a problem that it gets in the way of loading and unloading.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a flapped container which can easily carry in and out a load.

The invention of claim 1 has been made in order to achieve the above object, rotatable projecting hinge legs from strip-shaped flap extending along the upper end of the side wall of the container body to the upper end of the side wall is connected to a first orientation to exit tension inside the flap from the side wall, a flap container pivots between the second posture that overlaps the outer surface of the sidewall, the hinge leg, the It extends horizontally from the flap in the first posture and then bends upward, has a pivoting center above the bend, and is separated from the hinge leg of the front side surface of the flap overlapping the outer surface of the side wall the side, while including a front horizontal portion to be horizontal in the first position, the hinge leg portion side, provided with a collar portion which is located below the front horizontal portion in the first position, the flap, the Provided with the front side horizontal part from the collar part Min in said first position at the upper side thickened by flap with containers that have, on the outer surface of the side walls, the concave outer surface concave middle portion in the vertical direction is gently inclined from the vertical so that the bottom It is a container with a flap in which the said front side horizontal part of the said flap overlaps with the lower side inclination part lower than the bottom part of the said outer surface recessed part when it forms, and the said flap becomes a said 2nd attitude | position .

According to the invention of claim 2, the handle portion formed by the locking projection protruding downward from the tip of the lateral rib protruding outward of the side wall is disposed at a position facing the collar portion of the flap in the second posture. It is a container with a flap according to claim 1 .

In the flapped container according to claim 1, since the hinge leg extends horizontally from the flap in the first posture and then bends upward and has a pivoting center above the bent portion, the flap has a side wall. It can be pivoted to a second posture in which it is superimposed on the outer surface of the case, and it becomes possible to easily carry in and out the load. Here, if the center of rotation is disposed above the bent portion of the hinge leg, the space between the flap and the bottom surface of the container body is narrowed accordingly, and the luggage storage space is reduced. On the other hand, when the pivoting center is disposed closer to the bending portion side of the hinge leg, interference between the flap and the outer surface of the side wall in the second posture becomes a problem. Also, simply thinning the entire flap will result in lack of strength, and thickening the flap below the hinge legs will reduce the storage space. On the other hand, since the flap of the present invention is thicker on the side away from the hinge leg in the first posture than the hinge leg in the first posture, the flap has a reduced outer space and an insufficient strength to suppress the flap Can be pivoted to a second attitude that In addition, when the flap is in the second position, a part of the flap fits in the outer surface recess of the side wall and becomes compact.

According to the second aspect of the present invention, the handle portion of the side wall is arranged to face the thin collar portion of the flap, so that the portion of the side wall where the handle portion is formed is not thinned. You can easily put your finger on the handle.

  According to the configuration of the fourth aspect, when the flap is in the second posture, a part of the flap is accommodated in the outer surface recessed portion of the side wall, which makes it compact.

Perspective view of a container according to an embodiment of the present invention The perspective view of the container which made the flap the 2nd posture The perspective view which expanded the 2nd side wall of the container Perspective view of folded container Bottom side perspective view of the flap (A) A perspective view of the flap in which the flap lock member is in the unlocked position, (B) a perspective view of the flap in which the flap lock member is in the locked position Partially enlarged perspective view of the container in which the flaps fall outward Cutaway perspective view of the flap with the flap lock member in the unlocked position Cutaway perspective view of the flap with the flap lock member in the locked position Front view of the flap and the first side wall Perspective view of the flap and the first side wall A perspective view immediately before assembling the flap to the first side wall The perspective view of a state where a flap was attached to the 1st side wall The perspective view of the state which made the flap the 1st posture Perspective view of the central portion of the first side wall Side cross-sectional view of the flap in the first position Side cross-sectional view of the flap in the first position Side cross-sectional view of the flap in the second position Side cross-sectional view of the flap in the second position Side cross-sectional view of a flap according to a modification of the present invention Side cross-sectional view of a flap according to a modification of the present invention

  Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 19. The container body 10H of the flapped container 10 (hereinafter simply referred to as the "container 10") of the present embodiment shown in FIG. 1 has a foldable structure. That is, the container body 10H has a pair of first side walls 11 and 11 rotatably connected to a pair of long side edges of the rectangular bottom wall 13 and a pair of short sides of the bottom wall 13 A pair of second side walls 12, 12 is rotatably connected to the side edge portion. Then, after assembling the pair of second side walls 12 and 12 on the bottom wall 13, the assembled state (see FIG. 1) in which the first and second side walls 11 and 12 are erected from the bottom wall 13. It can be changed to a folded state (see FIG. 4) in which a pair of first side walls 11 is stacked on top.

  As shown in FIG. 3, connection projections 14 and 14 project from the side edges of the first side walls 11 and 11 toward the second side wall 12. A locking hole 14A is formed through each connecting protrusion 14 so as to be formed in a corresponding manner, and locking protrusions 15 are formed on both side edges of each second side wall 12 correspondingly. Then, the side edges of the second side wall 12 abut the connecting projections 14 and 14 of both the first side walls 11 and 11, and the second side wall 12 is restricted from rotating outward from the standing posture. In addition, the locking projection 15 of the second side wall 12 is engaged with the locking hole 14A of each connecting piece 14 in a concavo-convex manner, and the first side walls 11, 11 are restricted from rotating outward from the standing posture.

  At a lateral center of the upper part of the outer surface of the second side wall 12, a mechanism room 12K surrounded by ribs 12L in four directions is provided. In the mechanism room 12K, the operation member 90 is assembled so as to be pivotable about a pivot shaft which is directed in the lateral direction, and is urged to one end side of the pivot range. Further, on both sides of the mechanism room 12K, a pair of laterally extending side wall lock members 91, 91 are provided, and the base end of each side wall lock member 91 is cam-connected to the operation member 90 in the mechanism room 12K. On the other hand, the tip end of each side wall lock member 91 penetrates through holes 92 provided on both sides of the second side wall 12. Then, the front end of the side wall lock member 91 is locked to the lock projection 93 (see FIG. 2) formed on the inner surface of the first side wall 11, and the second side wall 12 is locked in the upright posture. The above-described lock is released by retracting the tip end portions of the side wall lock members 91, 91 into the through holes 92 by turning operation.

  As shown in FIG. 1, on the outer surface of the first side wall 11, a plurality of longitudinal ribs 16 are arranged in a dispersed manner in the lateral direction. The longitudinal ribs 16 extend over the entire first sidewall 11 in the vertical direction. Further, in the lateral center and both end portions of the first side wall 11, the distance between the longitudinal ribs 16 is relatively narrow.

  A plurality of (for example, four) lateral ribs 17 are collectively provided at the upper end of the outer surface of the first side wall 11, and one lateral rib 17 is provided at the lower end. Further, the upper two horizontal ribs 17 among the plurality of horizontal ribs 17 at the upper end are divided at plural locations in the lateral direction of the first side wall 11 by the plurality of hinge recesses 30 described later. The transverse rib 17 at the lower end extends over the entire lateral direction of the first side wall 11.

  The outer surface of the first side wall 11 is provided with a pair of handle portions 18, 18. The pair of handle portions 18 and 18 are disposed between the pair of longitudinal ribs 16 and 16 on both sides of the longitudinal rib 16 group densely disposed at the lateral center of the first side wall 11. Further, as shown in FIG. 15, each handle 18 is a hanging rib 18A (corresponding to the "locking projection" of the present invention) from the tip of the lowermost horizontal rib 17 in the plurality of horizontal ribs 17 at the upper end. Hang down. The hanging rib 18A extends in the lateral direction, and a pair of communication ribs 18B and 18B are connected to both ends thereof. The communication rib 18B communicates between the main plate portion 11M of the first side wall 11 excluding the vertical rib 16, the lateral rib 17 and the like and the depending rib 18A.

  As shown in FIG. 1, a pair of flaps 20, 20 is attached to the upper end of the pair of first side walls 11, 11. Each flap 20 is in the form of a strip extending along the upper edge of the first side wall 11. Further, a plurality of hinge legs 21 project from an edge on one end side in the width direction of the flap 20 and are rotatably connected to the upper end of the first side wall 11. Then, the flap 20 is rotated between the first posture in which the first side wall 11 falls as shown in FIG. 1 and the second posture superimposed on the outer surface of the first side wall 11 as shown in FIG. Move.

  Hereinafter, the upper surface, the lower surface, the upper side, the lower side, etc. of the flap 20 in the first posture are simply referred to as “front side surface, back side, front side, back side, etc. of the flap 20”. The end of the side having the portion 21 is referred to as “proximal end of flap 20”, and the opposite side is referred to as “distal end of flap 20”. The detailed structure of flap 20 will be described.

  As shown in FIG. 5, the flap 20 is provided with a longitudinal rib 20L and a transverse rib 20M on the inside of an enclosure 20W projecting from the entire back side outer edge of the strip-like flap top plate 20T. As shown in FIG. 2, the longitudinal ribs 20 </ b> L are dispersedly disposed in the longitudinal direction of the flap 20, and the transverse ribs 20 </ b> M are collectively disposed on the tip side of the flap 20. Also, as shown in FIG. 6A, a boundary line 20R extending in the entire longitudinal direction of the flap 20 is provided at a position near the base end of the front surface of the flap 20, and the front side surface of the flap 20 is a boundary line. The front end side from 20R is the front side horizontal portion 20H according to the present invention. Further, of the front and side surfaces of the flap 20, the base end side of the boundary line 20R is inclined so as to gently descend toward the hinge leg 21 group, forming a collar 20K according to the present invention.

  Boundary line 20R may have a band shape having a predetermined width, or boundary line 20R may be eliminated to have a shape gradually changing from front side horizontal portion 20H to collar portion 20K.

  As shown in FIG. 1, a pair of finger hook holes 20E and 20E are formed at the center in the longitudinal direction of the flap 20 so as to penetrate the flap top plate 20T. Further, the flap top plate 20T is recessed at both ends in the longitudinal direction of the flap 20 to form the lock member accommodating portion 22. The flap lock member 40 is accommodated in the lock member accommodating portion 22 so as to be linearly movable. There is. As shown in FIG. 6A, the lock member accommodation portion 22 is provided with a lock through hole 24 that opens to the side surface 20S of the flap 20, and the flap lock member 40 extends toward the lock through hole 24. A lock bar 41 is provided. Then, as shown in FIG. 6B, when the flap lock member 40 is moved to the lock position on the lock through hole 24 side in the lock member housing 22, the lock bar 41 protrudes laterally from the side surface 20S of the flap 20. On the other hand, as shown in FIG. 6A, when the flap lock member 40 is moved to the lock release position opposite to the lock position, the lock bar 41 retracts into the lock through hole 24.

  A stopper projection 23 protrudes from the opening edge of the lock through hole 24 on the side surface 20S of the flap 20. The stopper projection 23 extends from the lower side portion of the opening edge of the lock through hole 24 and is a reinforcing rib extending from one side side portion of the opening edge of the lock through hole 24 to the stopper projection 23A having a substantially trapezoidal planar shape. Concatenates 23B. Further, as shown in FIG. 5, when the flap lock member 40 is disposed at the lock position, the lock bar 41 protrudes from the tip of the stopper projection 23.

  As shown in FIG. 7, the upper end portion of the second side wall 12 is provided with a flap engagement recess 60 that engages with the stopper projection 23 and the lock bar 41. The flap engaging recess 60 has a square planar shape and is open on the upper surface and the inner surface of the second side wall 12. A ceiling wall 61 is provided at an intermediate position in the vertical direction inside the flap engaging recess 60, and a trapezoidal notch 64 corresponding to the stopper projection 23 is formed in the ceiling wall 61.

  Then, when the flap lock member 40 is disposed at the lock release position and the flap 20 is turned inward, as shown in FIG. 8, the stopper projection 23 passes through the notch portion 64 and the lower surface in the flap engagement recess 60 And the flap 20 is positioned in the first position. When the flap lock member 40 is moved from the lock release position to the lock position in this state, as shown in FIG. 9, the lock bar 41 dives below the ceiling wall 61 and the flap 20 is locked in the first posture.

  As shown in FIG. 10, the plurality of hinge legs 21 described above are distributed in the longitudinal direction of the flap 20. Each hinge leg 21 extends horizontally from the proximal end face of the flap 20 as shown in FIG. 11 and then is bent upward at a right angle. The lower corner of the bent portion of the hinge leg 21 is beveled obliquely to form an inclined surface 21K. A split groove 25M is formed at the center in the width direction of the hinge leg 21 from the position closer to the proximal end than the bent portion to the distal end, and both side portions sandwiching the split groove 25M are elastic support pieces 25 and 25. It has become. In addition, the end of the dividing groove 25M disposed at the proximal end position of the hinge leg 21 is semicircular, and the substantially semicircular shape shown in FIG. 5 is used to close the lower end of the semicircular portion. Ribs 25L are formed.

  As shown in FIG. 11, a pair of axial protrusions 26, 26 are formed on both side surfaces of the hinge leg 21 above the bent portion. Both axial projections 26 and 26 are arranged coaxially in a cylindrical shape, and the lower half of the end surface of each axial projection 26 is obliquely cut from the center of the end surface to make sliding contact inclined surface 26 S Is formed. Further, the central axis of the shaft projection 26 is the rotation center P1 of the flap 20 (see FIG. 16).

  As shown in FIG. 10, the upper end portion of the first side wall 11 is provided with a plurality of hinge recesses 30 corresponding to the plurality of hinge legs 21, and both sides of each hinge recess 30 become support protrusions 36. There is. Each hinge recess 30 has a structure in which the first side wall 11 is cut into a quadrangle over the entire wall thickness direction, and a deformation restricting projecting wall 35 is provided at the center in the width direction. Further, the distance between the inner side surfaces facing the hinge recess 30 is substantially the same as the distance between the outer side surfaces of the hinge legs 21. Furthermore, the width (i.e., the wall thickness) of the deformation restricting projecting wall 35 is slightly smaller than the width of the dividing groove 25M.

  As shown in FIG. 11, the deformation restricting projecting wall 35 has a trapezoidal shape when viewed in the longitudinal direction of the first side wall 11, and the upper surface thereof is located at the middle in the vertical direction of the hinge recess 30. Further, one side portion of the deformation restricting protruding wall 35 is flush with the inner surface of the first side wall 11. On the other hand, the other side of the deformation restricting protruding wall 35 is an inclined surface 35 K which extends obliquely upward from the end of the bottom surface of the hinge recess 30 on the outer surface side of the first side wall 11 and is connected to the upper surface.

  On both inner side surfaces of the hinge recess 30, as shown in FIG. 12, a bearing hole 32 is formed at the upper end near the outer surface of the first side wall 11, and from the bearing hole 32 to the first side wall 11. A guide groove 31 is formed over the outer surface. The bearing hole 32 has a circular shape, and the guide groove 31 has the same width as the diameter of the bearing hole 32. The back end of the guide groove 31 is semicircular, and the semicircular inner surface of the guide groove 31 is also the inner surface of half of the bearing hole 32. The inner surface of the other half of the bearing hole 32 is arranged to be offset from the inner surface of the guide groove 31 to the side away from the deformation restricting protrusion wall 35 and is orthogonal to the groove inner surface in the guide groove 31. Further, corner portions between the groove inner surface of the guide groove portion 31 and the outer surface of the first side wall 11 are chamfered to form the introduction inclined surface 33.

  Note that, as shown in FIG. 11, in the inner surface of the first side wall 11, a mold extraction hole 34 for forming the inner surface of a half of the bearing hole 32 close to the outer surface of the first side wall 11 is opened. .

  The flap 20 is assembled to the first side wall 11 as follows. That is, as shown in FIG. 12, with the flap 20 in the upright posture, the front end portions of the both axial projections 26, 26 of the hinge leg 21 are pressed toward the two guide grooves 31, 31 of the hinge recess 30. Then, the sliding inclined surface 26S at the tip of the shaft projection 26 and the introduction inclined surface 33 of the hinge leg 21 come in sliding contact, and the elastic support pieces 25 of the hinge legs 21 approach each other. Then, immediately before the two elastic support pieces 25 come into contact with the deformation restricting projection wall 35, the shaft projection 26 and the bearing hole 32 face each other, and the space between the elastic support pieces 25 expands. 26 and the bearing hole 32 engage with each other. Thus, the attachment of the flap 20 to the first side wall 11 is completed.

  When the flap 20 is in the first position, as shown in FIG. 14, the deformation restricting protruding wall 35 of the first side wall 11 is accommodated inside the elastic support pieces 25 and 25 adjacent to the elastic support pieces 25 in the rotational axis direction. , Restrict the elastic deformation of the elastic support piece 25. When the flap 20 is in the first position, the deformation restricting projecting wall 35 adjoins the rib 25L at the back of the dividing groove 25M of each hinge leg 21, and restricts the sliding movement of the flap 20.

  FIG. 16 shows the flap 20 in the first posture in an enlarged manner. As shown in the figure, when the flap 20 is in the first position, the entire back surface of the flap 20 and the front horizontal portion 20H of the front surface become horizontal. Further, both front and back sides of the straight portion 21C of the hinge leg 21 on the flap 20 side are also horizontal. Here, the vertical distance L1 from the rotation center P1 of the flap 20 to the front side surface of the straight portion 21C in the hinge leg 21 is the horizontal distance from the rotation center P1 of the flap 20 to the tip surface of the lower horizontal rib 17 It is slightly smaller than L2. Thus, as shown in FIG. 18, when the flap 20 is in the second position, the hinge leg 21 is slightly inclined with respect to the vertical direction. That is, the flap 20 pivots between the first attitude and the second attitude with a pivoting area slightly smaller than 270 degrees.

  As shown in FIG. 17, the outer surface of the first side wall 11 (specifically, the tip end surface of the longitudinal rib 16) is an outer surface which is recessed gently from above and below so that the middle portion in the vertical direction becomes the bottom portion 19B. The recess 19 is formed. Then, as shown in FIG. 18, when the flap 20 is in the second posture, the front horizontal portion 20H of the flap 20 overlaps the lower inclined portion 19A below the bottom portion 19B of the outer surface recess 19. That is, as shown in FIG. 16, in the flap 20 in the first posture, a part of the portion of the hinge leg 21 projecting upward from the reference surface S1 extending the front side surface of the straight portion 21C When in the 2 position, it fits in the outer surface recess 19 of the first side wall 11. Further, as shown in FIG. 19, when the flap 20 is in the second posture, the collar 20 </ b> K of the flap 20 faces the handle 18.

  The description regarding the structure of the container 10 of this embodiment is above. Next, the operation and effect of the container 10 will be described. When the container 10 receives the load, as shown in FIG. 1, the flap 20 is turned inward to be in the first position. Then, only the central portion of the upper surface of the container body 10H is opened. As a result, the package 10 is restricted from jumping out of the container 10 during transportation.

  When loading and unloading the container 10, the flap 20 is opened. Here, in the container 10 of the present embodiment, as shown in FIG. 16, the hinge leg portion 21 extends horizontally from the flap 20 in the first posture and then bends upward, and pivots upward from the bent portion Since the center P1 is provided, the flap 20 can be pivoted to the second posture overlapping the outer surface of the first side wall 11 as shown in FIG. As a result, as shown in FIG. 2, in the state where the upper surface opening of the container main body 10H is fully opened, it is possible to efficiently take in and out the load without being disturbed by the flap 20.

  By the way, when the rotation center P1 is arranged to be largely separated above the bent portion of the hinge leg 21 (that is, when the vertical distance L1 in FIG. 16 is increased), the gap between the flap 20 and the bottom of the container 10 becomes narrow. Luggage storage space will be reduced. On the other hand, when the rotation center P1 is disposed close to the bending portion side of the hinge leg 21, interference between the flap 20 and the outer surface of the first side wall 11 in the second posture becomes a problem. Also, simply thinning the entire flap 20 causes the problem of insufficient strength, and thickening the flap 20 below the hinge legs 21 reduces the storage space. On the other hand, in the flap 20 of the present embodiment, the front side horizontal portion 20H on the side away from the hinge leg 21 is thicker in the first posture than the collar 20K on the hinge leg 21 side, so It is possible to turn the flap 20 to the second posture overlapping the outer surface of the first side wall 11 while suppressing space reduction and strength deficiency.

  Further, as shown in FIG. 18, when the flap 20 is in the second posture, a part of the flap 20 is accommodated in the outer surface concave portion 19 of the first side wall 11 to be compact. Moreover, as shown in FIG. 19, since the handle portion 18 of the first side wall 11 opposes the thinned collar portion 20 K of the flap 20, the portion of the first side wall 11 in which the handle portion 18 is formed Can be easily put on the handle 18.

[Other embodiments]
The present invention is not limited to the above-described embodiment, and, for example, the embodiments described below are also included in the technical scope of the present invention, and various other variations are possible without departing from the scope of the invention. It can be changed and implemented.
(1) Other than the flap 20 of the above embodiment, for example, a structure in which the collar 20U is stepped down from the front horizontal portion 20H in a first posture and is horizontal like the flap 20X shown in FIG. It may be
(2) Further, as in the case of the flap 20Y shown in FIG. 21, it may be configured to be gradually thickened upward in the first posture toward the side away from the hinge leg 21 side.

10 container 10H container body 11 first side wall (side wall)
16 vertical rib 17 horizontal rib 18 handle 18A hanging rib (locking projection)
19 outer surface recess 19A lower inclined portion 19B bottom 20, 20X, 20Y flap 20K, 20U collar 20R boundary line 21 hinge leg 26 axial projection P1 pivot center

Claims (2)

Pivotally connected to an upper end portion of the side wall hinge legs from strip-shaped flap extending along the upper end of the side wall of the container body protrudes, first to exit the flap tension inwardly from said side wall A flapped container that pivots between one attitude and a second attitude that overlaps the outer surface of the side wall ,
The hinge leg extends horizontally from the flap in the first position and then bends upward, and has a pivot center above the bend.
A front side horizontal portion which becomes horizontal in the first posture is provided on the side away from the hinge leg of the front side of the flap overlapping the outer surface of the side wall, while the hinge leg in the first posture A collar located below the front horizontal portion;
Said flap is in the collar from the front horizontal portion flap with the container portion that has thickened upward in the first position with a
An outer surface recess is formed on the outer surface of the side wall so as to be gently inclined from above and below so that the middle portion in the vertical direction is the bottom, and when the flap is in the second posture, it is below the bottom of the outer surface recess A container with a flap in which the front horizontal portion of the flap overlaps the lower side slope. The handle portion formed by the locking projection protruding downward from the tip of the lateral rib protruding outward of the side wall is disposed at a position facing the collar portion of the flap in the second posture. Container with flap described.

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