JP2019151392A - container - Google Patents

Abstract

To provide a container that enables a side wall to be connected to a bottom member in an easily rotatable manner.SOLUTION: A container according to the present invention comprises a side wall, a lower hinge member, and a bottom member. The lower hinge member and the side wall are rotatably connected together. The lower hinge member has a hinge inclined plane that is inclined to decrease a width of the lower hinge member toward a lower end. The lower hinge member has a protrusion that is urged in a direction of protruding from the hinge inclined plane. The bottom member has a recess that has a recess inclined plane inclined to decrease its width downward. The recess inclined plane is provided with an inclined plane engaging hole. The protrusion is constituted to recede when being pressed against the recess inclined plane. The protrusion is constituted to be capable of being engaged with the inclined plane engaging hole.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a container such as a prefabricated container.

  Patent Document 1 discloses an assembly-type container constituted by a resin panel. In Patent Document 1, a retaining shaft provided on the side wall is fitted into a hole provided in the bottom member, so that the side wall can be folded so as to contact the upper surface of the bottom member.

JP 2011-185442 A

  However, it is troublesome to insert the retaining shaft provided on the side wall into the hole provided on the bottom member.

  This invention is made | formed in view of such a situation, and provides the container which can connect a side wall with a bottom member so that rotation is easy.

  According to the present invention, the container includes a side wall, a lower hinge member, and a bottom member, and the lower hinge member and the side wall are rotatably connected, and the lower hinge member is connected to the lower hinge member. The lower hinge member has a protrusion urged in a direction protruding from the hinge inclined surface, and the bottom member is downwardly provided. A concave portion having a concave inclined surface inclined so that the width thereof is narrowed toward the concave portion, and an inclined surface engaging hole is provided in the concave inclined surface, and the protruding portion is configured to retreat when pressed against the concave inclined surface. The container is provided such that the protrusion is configured to be engageable with the inclined surface engaging hole.

  In the present invention, since the lower hinge member can be connected to the bottom member by pressing the protruding portion of the lower hinge member against the inclined surface of the recess, the assembly is easy.

Preferably, in the container described above, a lower surface engagement hole is provided in a lower surface of the recess, and the lower hinge member includes a lower protrusion that protrudes toward the lower surface engagement hole, and the lower side A protrusion part is a container comprised so that engagement to the said lower surface engagement hole was possible.
Preferably, in the container described above, the concave inclined surface includes first and second concave inclined surfaces, and the first and second concave inclined surfaces are provided so as to sandwich the lower hinge member, The projecting portion includes a first projecting portion and a second projecting portion, and the first projecting portion and the second projecting portion are containers configured to project toward the inclined surfaces of the first and second recesses, respectively.
Preferably, in the container described above, the tip of the protruding portion is configured to be parallel to the inclined surface of the recess.
Preferably, in the container described above, the hinge inclined surface is parallel to the concave inclined surface.
Preferably, when the side wall is the first side wall, the container includes the second to fourth side walls, the first and second side walls are opposed to each other, and the third and fourth side walls are each other. Opposite and provided between the first and second side walls, the first to fourth side walls are containers configured to be rotatable with respect to the bottom member.

It is a perspective view of container 1 of one embodiment of the present invention. FIG. 2 is a sectional view through the upper hinge member 8 and the lower hinge member 7 of FIG. 1 (the upper hinge member 8 and the lower hinge member 7 are front views). It is sectional drawing which displayed the upper walls 5 and 6 mutually spaced apart about the area | region A in FIG. It is the perspective view which looked at the bottom member 2 from the lower side. It is sectional drawing which passes along the center of the groove | channel 2e about the area | region B in FIG. It is a perspective view which shows the state which opened the upper walls 5 and 6 of the container 1 of FIG. It is a perspective view provided with the state which fell the short side wall 4 from the state of FIG. It is a perspective view provided with the state which made the long side wall 3 fall from the state of FIG. FIG. 6 is a perspective view showing a process of attaching the short side wall 4 to the bottom member 2. FIG. 10A is a perspective view of the region C in FIG. 9 as seen from a different angle, and FIG. 10B is an exploded view of FIG. 10A. FIG. 10 is an enlarged view of a region D in FIG. 9. FIG. 6 is a perspective view showing a process of attaching the long side wall 3 to the bottom member 2. 13A is an enlarged view of region E in FIG. 12, and FIG. 13B is an exploded view of FIG. 13A. FIG. 6 is an exploded view of the lower hinge member 7. FIG. 6 is a front view of a state in which a lid portion 7a2 is removed from a lower hinge member 7. FIG. 13 is a perspective view of the vicinity of a region E in FIG. FIG. 17 is a cross-sectional view of the same cross section as FIG. 2 (the lower hinge member 7 is a front view) showing a state after the lower hinge member 7 is mounted on the bottom member 2 from the state of FIG. 16. 18A is an enlarged view of region F in FIG. 12, and FIG. 18B is an exploded view of FIG. 18A. FIG. 10 is a perspective view of the state in the vicinity of the region C in FIG. 9 with the engagement fitting 3 b and the engagement protrusion 3 c shown. 20A is a perspective view of the region G in FIG. 12 as seen from a different angle, and FIG. 20B is an exploded view of FIG. 20A. The upper hinge member 8 is shown, FIG. 21A is a plan view, FIG. 21B is a front view, and FIG. 21C is an exploded perspective view. 22A is a cross-sectional view of region G in FIG. 12 (the upper hinge member 8 is a front view), and FIGS. 22B to 22C show states when the upper wall 5 is rotated. 23A to 23C are diagrams corresponding to FIGS. 22A to 22C in the case where the rotation restricting portion 8a3 is not provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1. Overall Configuration As shown in FIG. 1, the container 1 of the present embodiment is an assembly-type cold storage container. The container 1 includes a bottom member 2, a pair of long side walls 3 facing each other, a pair of short side walls 4 facing each other, and first and second upper walls 5 and 6. These members preferably have a sandwich structure in which a foam is sandwiched between resin sheets from the viewpoint of strength, heat insulation, light weight, etc., but may have other configurations, such as a hollow double wall structure, It may be a structure composed only of a foam.

  The container 1 has a substantially rectangular parallelepiped shape. The bottom member 2 and the upper walls 5 and 6 face each other. The pair of short side walls 4 is disposed between the pair of long side walls 3. The pair of long side walls 3 and the pair of short side walls 4 constitute a side wall of the container 1. The upper walls 5 and 6 constitute a lid of the container 1. These members are connected to each other so that no gap is provided between the members so that the sealing performance of the container 1 is improved.

  In the following description, upper, lower, left, right, front, and rear are defined as shown in FIGS. That is, in the direction perpendicular to the main surface of the upper wall 5, the upper wall 5 side is “upper”, the bottom member 2 side is “lower”, and the front side is “front” in the direction perpendicular to the main surface of the long side wall 3. The rear side is “rear”, the left side of FIG. 1 is “left” and the right side is “right” in the direction perpendicular to the main surface of the short side wall 4. Expressing “up” and “down” as “higher” and “lower” respectively. In addition, “opposing” preferably opposes so as to be parallel.

  As shown in FIG. 2, the long side wall 3 is rotatably connected to the bottom member 2 via a lower hinge member 7. The short side wall 4 is directly connected to the bottom member 2 so as to be rotatable. The upper walls 5 and 6 are rotatably connected to the long side wall 3 via the upper hinge member 8, respectively. The long side wall 3 and the short side wall 4 are connected to each other by a connecting mechanism 9. The bottom member 2 includes a bottom wall 2q and a peripheral wall 2i that rises from the periphery of the bottom wall 2q.

  The short side wall 4 is provided with a recess 4p that serves as a handle. The container 1 can be lifted by hooking a finger on the recess 4p. Further, the long side wall 3 is provided with a concave portion 3p serving as a handle. In the case of a large container of about 40 L, there are cases where the arm is not long enough to hook and lift the finger in the recess 4p of the left and right short side walls 4. In such a case, the container 1 can be lifted by hooking a finger on the recess 3 p of the long side wall 3. The upper walls 5 and 6 are provided with recesses 5k and 6k. When the finger is hooked into the recess 3p, the thumb is prevented from slipping by being accommodated in the recesses 5k and 6k, and the container 1 can be easily lifted.

  Protrusions 5r and 6r are provided on the upper surfaces of the upper walls 5 and 6. The protrusions 5r and 6r are provided at positions facing the recess 3p when the upper walls 5 and 6 are opened as shown in FIG. Moreover, the convex parts 5r and 6r are comprised so that fitting to the recessed part 3p is possible. When the upper walls 5 and 6 are opened, the protrusions 5 r and 6 r are fitted into the recesses 3 p, thereby preventing the upper walls 5 and 6 from sliding relative to the long side wall 3. For example, in the folded state as shown in FIG. 8, the upper walls 5 and 6 are prevented from moving relative to the long side wall 3 toward the center in the front-rear direction by fitting the convex portions 5 r and 6 r and the concave portion 3 p. Has been. In addition, it is suppressed by the upper hinge member 8 that the upper walls 5 and 6 move relatively toward the outer side in the front-rear direction with respect to the long side wall 3 (see FIG. 22A).

  As shown in FIG. 4, the lower surface 2a of the bottom member 2 is provided with a pair of recesses 2r and a pair of recesses 2s. The recess 2r is provided on the outer side in the front-rear direction than the recess 2s. The concave portion 2r is fitted to the convex portions 5r and 6r when the container 1 is stacked in an assembled state. As a result, the containers 1 can be stably stacked.

  The upper walls 5 and 6 are provided with convex portions 5s and 6s on the surface opposite to the surface where the convex portions 5r and 6r are provided, as shown in FIG. As shown in FIG. 8, the convex portions 5 s and 6 s are directed to the upper side of the upper walls 5 and 6 in a state where the container 1 is folded. The convex portions 5s and 6s are fitted with the concave portion 2s when the containers 1 are stacked in a folded state. As a result, the containers 1 can be stably stacked.

2. Configuration of Upper Walls 5 and 6 As shown in FIGS. 2 to 3, the upper walls 5 and 6 include overlapping portions 5 h and 6 h that overlap each other. In the overlapping portions 5h and 6h, the total thickness of the upper walls 5 and 6 is the same as the thickness of the upper walls 5 and 6 in the adjacent portions 5i and 6i adjacent to the overlapping portions 5h and 6h. The upper wall 5 has an inclined surface 5b that decreases toward the tip of the overlapping portion 5h. The upper wall 6 has an inclined surface 6b that increases toward the tip of the overlapping portion 6h. The inclination angles of the inclined surfaces 5b and 6b are preferably the same, but may be different. When the inclination angles of the inclined surfaces 5b and 6b are different, it is preferable that the inclination angle of the inclined surface 5b> the inclination angle of the inclined surface 6b. The contact between the inclined surfaces 5b and 6b prevents a gap from being formed between the upper walls 5 and 6. Further, when the upper wall 5 is pressed from above, a force in a direction in which the upper wall 5 approaches the upper wall 6 is applied as the inclined surface 5b slides on the inclined surface 6b. For this reason, even if the upper wall 5 is pressed from above by stacking the containers 1, the formation of a gap between the upper walls 5 and 6 is suppressed.

  As shown in FIG. 3, the inclination angle α of the inclined surface 5b is preferably 1 to 45 degrees with respect to the upper surface 5c (horizontal surface when the container 1 is placed on a horizontal surface). If this angle is too small, a gap is easily formed between the upper walls 5 and 6. If this angle is too large, the inclined surfaces 5b and 6b may be engaged with each other, making it difficult to open the upper walls 5 and 6. Specifically, the inclination angle α is, for example, 1, 5, 10, 15, 20, 25, 30, 35, 40, 45 degrees, and is within a range between any two of the numerical values exemplified here. May be.

  In a state where the upper walls 5 and 6 are closed, the tip surface 5a of the overlapping portion 5h faces the tip surface 6g of the adjacent portion 6i, and the tip surface 6a of the overlapping portion 6h faces the tip surface 5g of the adjacent portion 5i. The front end surfaces 5a, 5g, 6a and 6g are tapered surfaces which are inclined so as not to interfere when the upper walls 5 and 6 are closed. A groove 6c is provided at the base end of the inclined surface 6b. By providing the groove 6c, water attached to the upper walls 5 and 6 due to dew condensation or the like easily flows toward the short side wall 4 along the groove 6c. Further, the bottom surface of the groove 6c is inclined so as to become lower from the center in the left-right direction toward the end, so that water can flow more easily.

3. Configuration of the bottom surface 2a of the bottom member 2 As shown in FIGS. 4 to 5, the bottom surface 2a of the bottom member 2 is provided with recesses 2b at the center in the front-rear direction and in the vicinity of both ends in the left-right direction. The recess 2b is shallower from the deepest part 2c toward the end, and a step 2d is provided in the middle. When lifting the container 1, placing the tip of the finger on the deepest part 2c so that the finger is caught on the step 2d can prevent the finger from slipping and dropping the container 1. Moreover, the groove | channel 2e is provided so that the recessed part 2b near both ends may be connected. The groove 2e is formed shallower than the recess 2b. The container 1 can be lifted by hooking a belt in the groove 2e.

4). How to fold the container 1 How to fold the container 1 will be described.
First, the upper walls 5 and 6 are opened from the state of FIG. 1 to the state of FIG. In the state of FIG. 1, the protrusion 4d (shown in FIG. 6) provided at the upper end of the short side wall 4 engages with the groove 6e (shown in FIG. 6) provided on the lower surfaces 5d and 6d of the upper walls 5 and 6. Thus, there is no gap between the short side wall 4 and the upper walls 5 and 6. Therefore, in this state, the short side wall 4 cannot be rotated, but by opening the upper walls 5 and 6, the engagement between the ridge 4 d and the groove 6 e is released, and the short side wall 4 can be rotated. It becomes possible. Since the upper walls 5 and 6 are connected to the long side wall 3 via the upper hinge member 8, the upper walls 5 and 6 can be rotated until the upper walls 5 and 6 are parallel to the long side wall 3. It has become.

  Next, the short side wall 4 is turned over from the state of FIG. 6 to the state of FIG. Since the short side wall 4 is rotatably connected to the bottom member 2 by engaging the protruding shaft 4c shown in FIG. 11 with the bearing hole 2f of the bottom member 2, the short side wall 4 is placed at the center of the container 1. By pushing toward, the short side wall 4 rotates around the bearing hole 2f and falls to the inside of the container 1. Further, by pushing the short side wall 4 toward the center of the container 1, the connection by the connecting mechanism 9 between the long side wall 3 and the short side wall 4 is released.

  Next, the long side wall 3 is turned over from the state of FIG. 7 to the state of FIG. Since the long side wall 3 is rotatably connected to the bottom member 2 via the lower hinge member 7, by pushing the long side wall 3 toward the center of the container 1, the long side wall 3 is moved to the lower hinge member 7. It will be in the state where it rotated centering on the inside and fell down inside the container 1.

  The container 1 can be folded compactly by the above process. When the container 1 is deployed, the long side wall 3 is raised from the state of FIG. 8 to the state of FIG. 7, and the short side wall 4 is raised from that state to the state of FIG. The long side wall 3 and the short side wall 4 are connected by the connecting mechanism 9 in conjunction with the operation of raising the short side wall 4, and the state where the long side wall 3 and the short side wall 4 are erected is maintained.

5. How to assemble container 1 A method for assembling the container 1 will be described.

<Attaching the latch structure 11 to the short side wall 4>
First, as shown in FIGS. 9 to 10, the latch structure 11 is attached to the main body 4 a of the short side wall 4. The latch structure 11 includes a body fitting 11a, a biasing member 11b, and a protruding member 11c. The biasing member 11b is, for example, a resin leaf spring. The body fitting 11a includes an accommodation recess 11a1 and an engagement recess 11a2. When the protruding member 11c is pushed into the receiving recess 11a1 with the urging member 11b disposed in the receiving recess 11a1, the protrusion 11c1 on the side surface of the protruding member 11c is elastically deformed while the protruding member 11c is elastically deformed. Overcoming 11a3, the urging member 11b and the protruding member 11c are held in the accommodating recess 11a1, and the latch structure 11 is obtained. The protruding member 11c is urged by the urging member 11b in a direction protruding from the opening end of the housing recess 11a1, but the protrusion 11c1 is locked by the locking wall 11a3, so that the protruding member 11c is stored in the receiving recess. 11a1. The latch structure 11 is press-fitted and fixed to the side surface of the main body 4a. As a result, the structure shown in FIG. 10A is obtained.

<Connection of short side wall 4 and bottom member 2>
As shown in FIGS. 9 and 11, a ridge 4 b having a substantially arc-shaped cross section is provided at the lower end of the short side wall 4. The ridge 4b extends along the front-rear direction (the width direction of the short side wall 4). Protruding shafts 4c are provided at both ends of the ridge 4b. In the peripheral wall 2 i of the bottom member 2, a groove 2 g that accommodates the protrusion 4 b is provided at a position adjacent to a portion to which the short side wall 4 is attached. Bearing holes 2f are provided at both ends of the recess 2g. An inclined groove 2h that is inclined so as to be connected to the bearing hole 2f is provided. The tip of the protruding shaft 4c is moved while contacting the inclined groove 2h, and the protruding shaft 4c is engaged with the bearing hole 2f. At this time, the protrusion 4b is accommodated in the recess 2g. As a result, the short side wall 4 is connected to the bottom member 2. If a pair of short side wall 4 is attached to the bottom member 2 and these are fallen down, it will be in the state shown in FIG. In such a configuration, even when the short side wall 4 rotates with respect to the bottom member 2, adhesion is maintained between the short side wall 4 and the bottom member 2, so that a gap is formed between the short side wall 4 and the bottom member 2. It is suppressed.

<Connection of long side wall 3 and lower hinge member 7>
Next, as shown in FIGS. 12 to 17, the lower hinge member 7 is attached to the main body 3 a of the long side wall 3. The lower hinge member 7 includes a case 7a, a side wall locking member 7b, and a bottom member locking member 7c. The case 7a includes a main body portion 7a1 and a lid portion 7a2. The main body 7a1 can accommodate the side wall locking member 7b and the bottom member locking member 7c. The side wall locking member 7b includes a pair of protruding shafts 7b1 and an urging portion 7b2 therebetween. The bottom member locking member 7c includes a pair of projecting portions 7c1 and an urging portion 7c2 therebetween. The protruding directions of the protruding shaft 7b1 and the protruding portion 7c1 are parallel.

  The case 7a includes a pair of parallel side surfaces 7a3, a lower surface 7a4, and an inclined surface (hinge inclined surface) 7a5 therebetween. The protruding shaft 7b1 protrudes from the case 7a through an opening provided in the side surface 7a3. The protrusion 7c1 protrudes from the case 7a through an opening provided in the inclined surface 7a5. The lower surface 7a4 is provided with a lower protrusion 7a6 that protrudes downward.

  The case 7a is provided with a guide wall 7a7 and a ridge 7a8. The protrusion 7c1 is configured to slide along the guide wall 7a7. Moreover, since the protrusion part 7c1 slides and abuts on the two parallel protrusions 7a8, rattling during the slide movement is suppressed. It is preferable that the front end surface 7c3 of the protruding portion 7c1 is substantially parallel to the inclined surface 7a5. Moreover, it is preferable that the front-end | tip 7c5 of the lower surface 7c4 of the protrusion part 7c1 is inside the surface P which extended the side surface 7a3. According to such a configuration, the lower hinge member 7 can be easily attached to the housing recess 2 j of the bottom member 2.

  The protruding shaft 7b1 is urged in a direction protruding from the case 7a by the urging portion 7b2. The protruding portion 7c1 is urged in a direction protruding from the case 7a by the urging portion 7c2. The protruding shaft 7b1 and the urging portion 7b2 may be integrally formed, or may be separate members. The protruding portion 7c1 and the urging portion 7c2 may be integrally formed, or may be separate members.

  As shown in FIGS. 13 and 17, a housing recess 3 d for housing the lower hinge member 7 is provided on the inner surface side of the lower end of the long side wall 3. The width of the housing recess 3 d is substantially the same as the width of the lower hinge member 7. Bearing holes 3e for bearing the projecting shaft 7b1 are provided on both sides of the housing recess 3d in the width direction. The lower hinge member 7 is rotatably connected to the long side wall 3 by inserting the lower hinge member 7 into the housing recess 3d with the protruding shaft 7b1 pressed and retracted and engaging the protruding shaft 7b1 with the bearing hole 3e. Is done. The housing recess 3d does not penetrate the long side wall 3, and there is a wall surface 3f on the outer side in the front-rear direction of the housing recess 3d. Further, on the upper side of the lower hinge member 7, an arcuate surface 7d centering on the protruding shaft 7b1 is provided. The part of the housing recess 3d where the arc surface 7d abuts is an arc surface 3g having the same radius of curvature as the arc surface 7d. For this reason, the long side wall 3 rotates with respect to the lower hinge member 7 while maintaining the contact of the arcuate surfaces 7d and 3g. According to such a configuration, formation of a gap between the long side wall 3 and the lower hinge member 7 is suppressed.

  Assuming that the protruding amount of the protruding shaft 7b1 is A and the protruding amount of the protruding portion 7c1 is B, it is preferable that A ≧ B, and more preferably A> B. Thus, since the protrusion amount of the protrusion shaft 7b1 is relatively large, the protrusion shaft 7b1 is stably held in the bearing hole 3e.

<Connection of lower hinge member 7 and bottom member 2>
Next, as shown in FIGS. 12 and 16 to 17, the lower hinge member 7 is connected to the bottom member 2. The lower hinge member 7 may be connected to the bottom member 2 before connecting the lower hinge member 7 to the long side wall 3. The lower hinge member 7 may be connected to the bottom member 2 after the long side wall 3 and the upper walls 5 and 6 are connected by the upper hinge member 8.

  On the inner surface side of the upper end of the peripheral wall 2i of the bottom member 2, an accommodation recess 2j for accommodating the lower hinge member 7 is provided. The housing recess 2j has the same shape as that formed by the inclined surface 7a5 and the lower surface 7a4 of the lower hinge member 7. The housing recess 2j has an inclined surface (recessed inclined surface) 2k and a lower surface 2l. The inclined surface 2k is inclined so that the width of the accommodating recess 2j is narrowed downward. The lower surface 2l is provided between the pair of inclined surfaces 2k. The lower hinge member 7 is inserted into the housing recess 2j so as to be sandwiched between the pair of inclined surfaces 2k.

  The inclined surface 2k is provided with an engagement hole (inclined surface engagement hole) 2m that engages with the protruding portion 7c1. The lower surface 2l is provided with an engagement hole (lower surface engagement hole) 2n that engages with the lower protrusion 7a6. When the lower hinge member 7 is inserted into the housing recess 2j, the protrusion 7c1 is retreated by being pushed by the inclined surface 2k until the protrusion 7c1 reaches the position of the engagement hole 2m, and the protrusion 7c1 is retracted. When the position is reached, the protruding portion 7c1 protrudes by the urging force of the urging portion 7c2, whereby the protruding portion 7c1 is engaged with the engaging hole 2m. At this time, the lower protrusion 7a6 engages with the engagement hole 2n. According to such a configuration, the lower hinge member 7 can be connected to the housing recess 2j simply by pressing the lower hinge member 7 against the housing recess 2j from above, so that the assembly efficiency is very excellent. Yes. The housing recess 2j does not penetrate the peripheral wall 2i, and there is a wall surface 2o on the outer side in the front-rear direction of the housing recess 2j. For this reason, the formation of a gap between the lower hinge member 7 and the bottom member 2 is suppressed.

  As shown in FIGS. 14 and 17, the outer surface of the lower hinge member 7 is provided with a concave portion 7 e at a portion that abuts against the bottom member 2. By providing the concave portion 7e at this portion, the thickness of the wall surface 2o can be increased. When the bottom member 2 has a sandwich structure in which a foam is sandwiched between a pair of resin sheets, the bottom member 2 can be manufactured using a split mold that opens and closes in the vertical direction. In this case, if the wall surface 2o is too thin, it is difficult to dispose the foam on the wall surface 2o. Therefore, by providing the lower hinge member 7 with the concave portion 7e, it is possible to increase the thickness of the wall surface 2o. Moreover, in order to provide the recessed part 7e, the position of the protrusion part 7c1 has approached the center side of the container 1 rather than the protrusion shaft 7b1.

  As shown in FIG. 17, a ridge 2 p is provided at the upper end of the peripheral wall 2 i of the bottom member 2, and a ridge 3 h is provided at the lower end of the long side wall 3. The ridge 3h is disposed outside the ridge 2p, and the side surfaces of the ridge 3h and the ridge 2p are in contact with each other. According to such a configuration, the formation of a gap between the bottom member 2 and the long side wall 3 is suppressed.

<Connection of long side wall 3 and short side wall 4>
Next, as shown in FIGS. 12 and 18 to 19, the fitting 3 b is attached to the main body 3 a of the long side wall 3. The engagement fitting 3b can be mounted by press fitting. The engagement metal fitting 3b is mounted at a position adjacent to the engagement protrusion 3c protruding from the inner surface of the main body 3a. A coupling mechanism 9 is configured by the latch structure 11, the engagement fitting 3b, and the engagement projection 3c. When the short side wall 4 is erected from the state shown in FIG. 7, the projecting member 11c shown in FIG. 10 abuts on the engaging convex portion 3c, and the projecting member 11c is pushed by the engaging convex portion 3c and retreats. Get over part 3c.

  When the protruding member 11c gets over the engaging projection 3c, the protruding member 11c protrudes again, and the long side wall 3 and the short side wall 4 are connected by the connecting mechanism 9, as shown in FIG. When connected by such a method, the assembly of the container is unlikely to occur. Further, in this state, when the short side wall 4 tries to fall, the protruding member 11c comes into contact with the engaging convex portion 3c, so that the short side wall 4 is prevented from falling. At this time, the engagement protrusion 3b1 of the engagement fitting 3b enters the engagement recess 11a2 of the body fitting 11a, and the engagement protrusion 3b1 contacts the body fitting 11a so that the short side wall 4 is not further opened. It has become. By such an action, the standing state of the short side wall 4 can be maintained. Further, in this state, the ridges 3i (shown in FIG. 18) of the long side wall 3 are arranged outside the ridges 4e (shown in FIG. 19) of the short side wall 4, and the side surfaces of the ridges 3i and 4e are Are in contact. According to such a configuration, the formation of a gap between the long side wall 3 and the short side wall 4 is suppressed.

  In a container in which the latch structure 11 is not provided, the upper walls 5 and 6 may be closed in a state where the short side wall 4 is not completely raised. If the upper walls 5 and 6 are closed in such a state, the protrusion 4d of the short side wall 4 and the groove 6e of the upper walls 5 and 6 may interfere with each other and be scraped, thereby reducing the sealing performance. On the other hand, in the present embodiment, since the latch structure 11 is provided, the upper walls 5 and 6 can be closed in a state where the short side wall 4 is completely upright, and interference between the protrusion 4d and the groove 6e is suppressed. be able to. The container 1 of the present embodiment is supposed to repeatedly open and close and fold, and in such a case, since the scraping due to the interference between the ridges 4d and the grooves 6e tends to be remarkable, the latch structure 11 is provided. The technical significance of the installation is particularly great.

  When the short side wall 4 is to be overturned, if a strong force is applied to the method of overturning the short side wall 4, the projecting member 11 c retreats and gets over the engaging convex portion 3 c, thereby releasing the connection by the connection mechanism 9. The side wall 4 can fall over.

<Connection of long side wall 3 and upper walls 5 and 6>
Next, as shown in FIGS. 12 and 20 to 22, the long side wall 3 and the upper walls 5 and 6 are connected. One long side wall 3 and the upper wall 5 are connected, and the other long side wall 3 and the upper wall 6 are connected. Since the connection structure of the long side wall 3 and the upper wall 6 is the same as the connection structure of the long side wall 3 and the upper wall 5, the connection between the long side wall 3 and the upper wall 5 will be described below as an example.

  The long side wall 3 and the upper wall 5 are connected via an upper hinge member 8. The upper hinge member 8 includes a case 8a, an upper wall locking member 8b, and a side wall locking member 8c. The case 8a includes a main body 8a1 and a lid 8a2. The main body 8a1 can accommodate the upper wall locking member 8b and the side wall locking member 8c. The upper wall locking member 8b includes a pair of protruding shafts 8b1 and an urging portion 8b2 therebetween. The side wall locking member 8c includes a pair of protruding shafts 8c1 and a biasing portion 8c2 therebetween. The protruding shafts 8b1 and 8c1 protrude from the case 8a through an opening provided on the side surface of the case 8a. The protruding shafts 8b1 and 8c1 extend in parallel. The protruding shafts 8b1 and 8c1 are urged in a direction protruding from the case 8a by the urging portions 8b2 and 8c2. The protruding shaft 8b1 and the urging portion 8b2 may be integrally formed or may be separate members. The protruding shaft 8c1 and the urging portion 8c2 may be integrally formed, or may be separate members. The case 8 a is provided with a rotation restricting portion 8 a 3 that restricts the rotation of the upper hinge member 8.

  As shown in FIGS. 20B and 22, a housing recess 3 j for housing the upper hinge member 8 is provided on the outer surface side of the upper end of the long side wall 3. The width of the housing recess 3j is substantially the same as the width of the upper hinge member 8. Bearing holes 3k for bearing the protruding shafts 8c1 are provided on both sides in the width direction of the housing recess 3j. The upper hinge member 8 is rotatably connected to the long side wall 3 by inserting the upper hinge member 8 into the housing recess 3j and engaging the protruding shaft 8c1 with the bearing hole 3k in a state where the protruding shaft 8c1 is pushed back. Is done. The housing recess 3j does not penetrate the long side wall 3, and there is a wall surface 31 on the inner side in the front-rear direction of the housing recess 3j. Further, the upper hinge member 8 is provided with an arcuate surface 8d centered on the protruding shaft 8c1. The portion of the housing recess 3j where the arc surface 8d abuts is an arc surface 3m having the same radius of curvature as the arc surface 8d. For this reason, the upper hinge member 8 rotates with respect to the long side wall 3 while maintaining the contact of the arcuate surfaces 8d and 3m. According to such a configuration, formation of a gap between the upper hinge member 8 and the long side wall 3 is suppressed.

  As shown in FIGS. 20B and 22, an accommodation recess 5 f for accommodating the upper hinge member 8 is provided at the base end of the upper wall 5. The width of the housing recess 5 f is substantially the same as the width of the upper hinge member 8. Bearing holes 5j for bearing the projecting shaft 8b1 are provided on both sides in the width direction of the housing recess 5f. The upper hinge member 8 is rotatably connected to the upper wall 5 by inserting the upper hinge member 8 into the housing recess 5f with the protruding shaft 8b1 pressed and retracted and engaging the protruding shaft 8b1 with the bearing hole 5j. Is done.

  Through the above steps, the long side wall 3 and the upper walls 5 and 6 are connected, and the container 1 assembled as shown in FIG. 6 is obtained.

6). How to close the upper walls 5, 6 As shown in FIG. 22, the upper wall 5 is closed by rotating the upper hinge member 8 about the protruding shaft 8c1 while rotating the upper wall 5 about the protruding shaft 8b1. be able to. The protruding shafts 8b1 and 8c1 serve as rotation shafts. The same applies to the upper wall 6.

  In the present embodiment, the upper hinge member 8 is provided with a rotation restricting portion 8a3 on the lower side of the protruding shaft 8c1, and the upper restricting member 8a3 comes into contact with the lower surface 3j1 of the housing recess 3j so that the upper hinge member 8 is Further, it is designed not to rotate. For this reason, the position of the protruding shaft 8b1 is always higher than the protruding shaft 8c1. For this reason, as shown in FIGS. 22B to 22C, when the upper wall 5 is gripped and rotated, the upper hinge member 8 is easily rotated around the protruding shaft 8c1, so that the upper hinge member 8 rotates smoothly. Thus, the upper wall 5 can be closed smoothly.

  In the plane passing through the projecting shafts 8b1 and 8c1, the angle β with respect to the outer surface 3o of the long side wall 3 is preferably 91 to 135 degrees, more preferably 100 to 120 degrees, and specifically, for example, 91, 95 , 100, 105, 110, 115, 120, 125, 130, and 135 degrees, and may be within a range between any two of the numerical values exemplified here.

  If the upper hinge member 8 has no rotation restricting portion as shown in FIG. 23, when the protruding shaft 8b1 is at the same position as the protruding shaft 8c1 or lower than the protruding shaft 8c1, the upper hinge member 8 is Further contact with the lower surface 3j1 prevents further rotation. In this state, when the upper wall 5 is gripped and rotated, the upper hinge member 8 is difficult to rotate around the protruding shaft 8c1, and the state shown in FIG. 23C may occur. In such a state, the upper wall 5 cannot be closed unless a force is directly applied to the upper hinge member 8 to rotate the upper hinge member 8, which is troublesome.

1: container,
2: bottom member, 2a: lower surface, 2b: recess, 2c: deepest part, 2d: step, 2e: groove, 2f: bearing hole, 2g: recess, 2h: inclined groove, 2i: peripheral wall, 2j: housing recess 2k: Inclined surface, 2l: Lower surface, 2m: Engagement hole, 2n: Engagement hole, 2o: Wall surface, 2p: Projection, 2r: Recess, 2s: Recess,
3: Long side wall, 3a: Main body part, 3b: Engagement fitting, 3b1: Engagement protrusion, 3c: Engagement protrusion, 3d: Housing recess, 3e: Bearing hole, 3f: Wall surface, 3g: Arc surface, 3h : Ridge, 3i: ridge, 3j: receiving recess, 3j1: lower surface, 3k: bearing hole, 3l: wall surface, 3m: arc surface, 3o: outer surface, 3p: recess,
4: short side wall, 4a: main body part, 4b: protruding line, 4c: protruding shaft, 4d: protruding line, 4e: protruding line, 4p: recessed part,
5: first upper wall, 5a: tip surface, 5b: inclined surface, 5c: top surface, 5d: bottom surface, 5f: receiving recess, 5g: tip surface, 5h: overlapping portion, 5i: adjacent portion, 5j: bearing hole, 5k: concave portion, 5r: convex portion, 5s: convex portion 6: second upper wall, 6a: tip surface, 6b: inclined surface, 6c: groove, 6d: bottom surface, 6e: groove, 6g: tip surface, 6h: overlap Part, 6i: adjacent part, 6k: concave part, 6r: convex part, 6s: convex part 7: lower hinge member, 7a: case, 7a1: body part, 7a2: lid part, 7a3: side face, 7a4: lower face, 7a5: Inclined surface, 7a6: lower protruding portion, 7a7: guide wall, 7a8: ridge, 7b: side wall locking member, 7b1: protruding shaft, 7b2: biasing portion, 7c: bottom member locking member, 7c1: protruding portion 7c2: urging portion, 7c3: tip surface, 7c4: bottom surface, 7c5: tip, 7d: arc surface, 7e: recess,
8: Upper hinge member, 8a: Case, 8a1: Body portion, 8a2: Lid portion, 8a3: Rotation restricting portion, 8b: Upper wall locking member, 8b1: Projection shaft, 8b2: Energizing portion, 8c: Side wall locking Member, 8c1: projecting shaft, 8c2: urging portion, 8d: arc surface,
9: coupling mechanism,
11: Latch structure, 11a: body fitting, 11a1: housing recess, 11a2: engagement recess, 11a3: locking wall, 11b: urging member, 11c: protruding member, 11c1: protrusion

Claims (6)

A container,
A side wall, a lower hinge member, and a bottom member;
The lower hinge member and the side wall are rotatably connected,
The lower hinge member includes a hinge inclined surface that is inclined so that a width of the lower hinge member becomes narrower toward a lower end,
The lower hinge member has a protruding portion biased in a direction protruding from the hinge inclined surface,
The bottom member includes a concave portion having a concave inclined surface that is inclined so that the width is narrowed downward.
An inclined surface engaging hole is provided in the inclined surface of the recess,
The protrusion is configured to retreat when pressed against the inclined surface of the recess,
The said protrusion part is a container comprised so that engagement to the said inclined surface engagement hole is possible. The container according to claim 1,
A lower surface engagement hole is provided on the lower surface of the recess,
The lower hinge member includes a lower protrusion that protrudes toward the lower surface engagement hole,
The said lower side protrusion part is a container comprised so that engagement to the said lower surface engagement hole is possible. The container according to claim 1 or 2,
The concave inclined surface includes first and second concave inclined surfaces,
The first and second concave inclined surfaces are provided so as to sandwich the lower hinge member,
The protrusion includes first and second protrusions,
The first and second protrusions are containers configured to protrude toward the first and second recess inclined surfaces, respectively. A container according to any one of claims 1 to 3,
The container is configured such that a tip of the protruding portion is parallel to the concave inclined surface. A container according to any one of claims 1 to 4,
The hinge inclined surface is parallel to the recessed portion inclined surface. A container according to any one of claims 1 to 5,
When the side wall is the first side wall,
Comprising second to fourth side walls;
The first and second sidewalls oppose each other;
The third and fourth side walls are opposed to each other and provided between the first and second side walls,
The first to fourth side walls are containers configured to be rotatable with respect to the bottom member.