JP2005082157A - Box type container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a box type container, which has handles efficient in assembling, and prevents a load from acting on the handles when the load is applied to side wall members in a direction where the load is applied to the wall members to fall when the container is assembled. <P>SOLUTION: The container is kept assembled by engaging engaged parts, which are formed on both side edges of a pair of counter side wall members, with elastic engaging parts, which are formed on both side edges of another pair of counter side wall members for engaging elastically with the engaged parts to keep the side wall members assembled. Lock releasing nails formed on both sides of respective handles elastically deform the elastic engaging parts to release the engagement between the elastic engaging parts and the engaged parts. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a box container that can be folded or unfolded, for example, for logistics.

As a physical distribution container such as a container, a rectangular bottom plate member and four side wall members are assembled into a box shape, and each of the four side wall members is rotated around the edge of the bottom plate via a hinge. A box-shaped container is used that is movably attached and is pivotable inward or outward around the hinge by releasing the locking means (see Patent Document 1, etc.).
When the side wall member is in the assembled state, the locking means includes a lock pin that moves forward and backward in the direction of the side edge of the adjacent side wall member by a handle attached to the pair of opposing side wall members, and another pair of opposing side wall member sides. A fitting hole is provided at the edge and into which the lock pin fits.

  That is, in the case of the box-type container as described above, if the lock pin is retracted by operating the handle to release the lock pin from being fitted into the fitting hole, the four side wall members are brought down to the expanded state. Or can be folded inward so that the storage space when not in use can be reduced, and transportation and storage costs can be reduced.

JP 2003-40263 A

However, in the case of the conventional box-type container described above, the locking means has a lock pin that moves forward and backward in the direction of the side edge of the adjacent side wall member by a handle attached to the pair of opposite side wall members, and another pair of opposite side wall members. Since it is comprised from the fitting hole which is provided in a side edge and a lock pin fits in, when a load is applied to the side wall member in the assembled state, the load is received by the lock pin.
Therefore, the lock pin, the handle for operating the lock pin, and the structure for fixing the handle must be strong enough to withstand the load as described above, and the handle portion is complicated, poorly assembled, and costly. There is a problem that it takes.

  In view of the above circumstances, the present invention provides a box-type container that is excellent in assembly of the handle part, and that does not apply the load to the handle part even when a load is applied in a direction to fall on the side wall member in the assembled state. It is aimed.

In order to achieve the above object, a box-shaped container according to the present invention is formed in a box shape by assembling a rectangular bottom plate member and four side wall members, and each of the four side wall members is formed of the bottom plate. In the box-shaped container that is pivotally attached to the end edge via a hinge and is pivotable inward or outward around the hinge by releasing the locking means, the locking means Are formed on both side edges of the opposing pair of side wall members and on both side edges of the other pair of opposing side wall members, and are elastically engaged with the engaged parts to assemble the side wall members. A handle that is formed at a position where the unlocking claw portions provided at both ends thereof face the elastic engaging portion when the side wall member is in an assembled state. By the unlocking claw The elastic engagement portion is elastically deformed and attached to the wall surface of the side wall member provided with the engaged portion so as to be movable in a direction to release the engagement of the elastic engagement portion with the engaged portion. It is characterized by that.

  Further, in the box-type container of the present invention, the handle is formed of one member formed by injection molding, and can be elastically deformed by extending from the handle body having the unlocking claw portions at both ends and the middle portion of the handle body. Provided on the outer wall surface of the side wall member so that the unlocking claw portion is biased in the non-releasing direction of the elastic engagement portion by the elastic restoring force of the handle main body biasing portion. It is preferable that the handle main body urging portion is fitted into the handle mounting recess.

  In the box-type container according to the present invention, as described above, the side wall member is elastically engaged with the engaged portion provided on one side wall member, and the elastic engagement portion provided on the other side wall member is elastically engaged. Since it is in an assembled state, even if a load is applied in the direction in which the side wall member falls in the assembled state, no load is applied to the handle. Therefore, the structure of the handle portion is simple, the handle portion can be easily manufactured, and the cost can be reduced.

  In addition, the handle is formed of a single member formed by injection molding, and includes a handle body provided with unlocking claw portions at both ends, and a handle body urging portion that extends from an intermediate portion of the handle body and is elastically deformable. The handle body is provided in the handle mounting recess provided on the outer wall surface of the side wall member so that the unlocking claw portion is urged in the non-engagement release direction of the elastic engagement portion by the elastic restoring force of the handle body urging portion. If it is set as the structure by which a biasing part is engage | inserted, manufacture of a handle part will be easy and the attachment operation | work of a handle part can be simplified.

Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof.
1 to 11 show an embodiment of a box-shaped container according to the present invention.

As shown in FIGS. 1 and 2, the box-type container 1 includes a bottom plate member 2, four side wall members 3, 3, 4, 4 and two handles 5, all of which are made of polypropylene or the like. It is formed by injection molding a thermoplastic resin such as ABS resin.
The bottom plate member 2 has a substantially rectangular shape, and as shown in FIG. 2, the long-side end edge portion 21 is higher than the short-side end edge portion 22 by the thickness of the side wall member 3 described later. In addition, bearing recesses 21a and 22a of side wall members 3 and 4 which will be described later are formed in both edge portions 21 and 22, respectively.

  Although not shown, the bearing recesses 21a and 22a are provided with shaft holes on the wall surfaces into which shafts 31b and 41a of side wall members 3 and 4 described later are fitted, respectively.

As shown in FIG. 3, the side wall member 3 includes a side wall member main body 31, an elastic engagement portion 32, and a hook-shaped stopper 33.
The side wall member body 31 has a substantially rectangular shape whose longitudinal dimension is substantially the same as the longitudinal dimension of the bottom plate member 2, and a bearing recess provided at the lower edge 21 of the bottom side of the bottom plate member 2. A fitting protrusion 31a having shafts 31b projecting from both side walls thereof is provided at a position corresponding to 21a. The fitting protrusion 31a is fitted into the bearing recess 21a, and the shaft 31b is inserted into the bearing recess 21a. It is rotatably supported by the bottom plate member 2 by being rotatably supported in the shaft hole.

As shown in FIGS. 3 and 4, the elastic engagement portions 32 are provided at both side edges of the side wall member main body 31. The engagement portion main body 321 and the engagement portion main body 321 are attached to the side wall member main body 31. And a connecting portion 322 to be connected.
The connecting portion 322 has a substantially U-shaped cross section with a long upper side 322 a, and the upper side 322 a is integrally formed on the inner wall surface of the hole 311 provided in the side wall member body 31.

The engaging portion main body 321 is integrally formed with the connecting portion 322 so as to protrude from the connecting portion 322 to the inside of the side wall member main body 31, and has a substantially U-shaped cross section. The taper surface 321a descends toward the bottom, and the outer surface of the corner portion is rounded.
The hook-shaped stoppers 33 are provided above and below the elastic engagement portion 32, and a vertical portion 331 that rises vertically from the inner surface of the side wall member main body 31, and is parallel to the inner surface 31 a of the side wall member main body 31 from the tip of the vertical portion 331. The cross section is substantially L-shaped with a parallel portion 332 extending in the direction of the cross section.

As shown in FIG. 5, the side wall member 4 has a dimension in which the longitudinal dimension is substantially less than the short dimension of the bottom plate member 2 minus the total thickness of the two side wall member main bodies 31, and a side wall is formed at the lower end. Similar to the member main body 31, a fitting protrusion 41 is provided so as to be rotatably supported by the bottom plate member 2 in the same manner as the side wall member 3 by fitting the fitting protrusion 41 into the bearing recess 22 a. Has been.
Further, as shown in FIGS. 5 and 6, a notch 42 is provided in a portion corresponding to the elastic engagement portion 32 at the side edge of the side wall member 4 at the time of assembly.

In the cutout portion 42, an engaged portion 43 is provided at a portion corresponding to the tapered surface 321 a of the engaging portion main body 321.
The outer wall surface of the side wall member 4 is provided with a stopper receiving portion 44 into which the parallel portion 332 of the hook-shaped stopper 33 is fitted during assembly, and a handle attachment recess 45 of the handle 5 described later is provided.

The handle attachment recess 45 includes a handle body fitting portion 451 and a fixed support fitting portion 452.
As shown in FIG. 6, the fixed support fitting portion 452 includes an upper fitting groove 452 a into which an upper end portion of the fixed support 53 of the handle 5 described later is fitted, and a lower fitting into which the lower end portion of the fixed support 53 is fitted. And a portion facing the notch 42 is cut out.

  The upper fitting groove 452a is formed with a slit 452c into which a part of a handle body urging portion 52 of the handle 5 to be described later enters in the wall surface on the handle body fitting portion 451 side, and from the side wall surface of the fixed column 53. A hole 452d into which the protruding protrusion 532 is fitted is formed.

As shown in FIG. 7, the handle 5 includes a handle main body 51, a handle main body urging portion 52, a fixing column 53, and an unlocking claw portion 54, which are shaped by injection molding as shown in FIG. Are integrally molded.
The handle main body 51 has a shape in which both ends in the longitudinal direction are bent downward, and the outer surface side of the handle main body 51 is cut out at both ends, and the unlocking claw portions 54 are integrally provided.

A concave portion 511 serving as a handle is formed in the center portion of the handle main body 51.
The unlocking claw portion 54 is sized to enter the U-shape of the elastic engagement portion 32 and forms a concave portion 542 in which the fixed column 53 is slidably fitted between the end surface of the handle body 51. A protrusion 541 is provided.

The handle main body urging portion 52 has a thin cross-sectional wave shape, and one end is integrally formed with the middle portion of the handle main body 51 and the other end is integrally formed with the fixed column 53.
The fixed support 53 is provided with a guide groove 531 formed on the inner surface side (side wall member 4 side) at the lower end side thereof, and protrusions 532 are provided on both side surfaces in the vicinity of the handle body biasing portion 52.

  Then, the handle 5 is assembled so that the handle main body urging portion 52 is slightly twisted so that the guide groove 531 portion of the fixed column 53 fits into the recess 542 of the unlocking claw portion 54 as shown in FIG. After that, as shown in FIG. 9, the handle body 51 is fitted into the handle body fitting portion 451, the fixed column 53 is fitted into the fixed column fitting portion 452, and the handle body biasing portion 52 is inserted into the slit 452c. This is attached to the side wall member 4.

  The box-shaped container 1 is as described above. When not in use, as shown in FIG. 2, first, the pair of side wall members 4 are folded so as to be parallel to the bottom plate member 2, and then the rest The pair of side wall members 3 are folded so as to overlap with each other, thereby becoming compact.

  On the other hand, in use, first, the two side wall members 3 are rotated from the state shown in FIG. 2 so as to be substantially perpendicular to the bottom plate member 2, and then the side wall member 4 is rotated. Then, it is raised until it becomes substantially perpendicular to the bottom plate member 2, and the engaged portion 43 and the elastic engagement portion 32 are engaged.

  More specifically, when the side wall member 4 is raised, the engaged portion 43 first hits the tapered surface 321 a of the elastic engaging portion 32. Then, when further caused, the elastic engaging portion 32 is pressed downward and elastically deformed downward, and the engaged portion 43 gets over the engaging portion main body 321 of the elastic engaging portion 32. When the engaged portion 43 gets over the engaging portion main body 321, the elastic engaging portion 32 returns to the original state by the elastic restoring force, and the engaged portion 43 is locked to the wall surface of the engaging portion main body 321, and the side wall The rotation of the member 4 toward the container inner side is prevented, and the side wall member 4 prevents the rotation toward the inner side of the side wall member 3. At the same time, since the parallel portion 332 of the hook-shaped stopper 33 enters the stopper receiving portion 44, the side wall member 3 is prevented from rotating outward, and the side wall member 4 is received by the vertical portion 331 and the outer side rotation is prevented. Is prevented. At this time, the unlocking claw portion 54 is held in a state of being inside the elastic engagement portion 32.

  Next, in the case of folding again, a finger is inserted into the recess 511, the handle 5 is pushed downward, and the unlocking claw portion 54 elastically deforms the elastic engagement portion 32, thereby elastically engaging the engaged portion 43. After the side wall member 4 is folded in a state where the engagement with the portion 32 is released, the side wall member 3 is folded as shown in FIG.

As described above, the box-shaped container 1 is assembled by engaging the elastic engagement portion 32 provided on one side wall member 3 and the engaged portion 43 provided on the other side wall member 4. Since the state is maintained, even if a load in the rotation direction is applied to the side wall members 3 and 4, the load is not applied to the handle at all.
Therefore, the handle 5 itself and the fixing structure of the handle 5 are simple, and the handle portion can be easily manufactured and the cost can be reduced.

Further, since the handle 5 is formed by a single member molded by injection molding and is attached to the side wall member 4 simply by fitting into the handle mounting recess 45 provided on the outer wall surface of the side wall member, the handle 5 can be easily manufactured. Thus, the work of attaching the handle 5 can be simplified.
In addition, the handle 5 is provided with a fixed column 53, and the fixed column 53 receives a load from above the side wall member 4. Therefore, the side wall member 4 can be reinforced by attaching the handle 5. Can do.
In addition, since the protrusion 541 is provided on the unlocking claw portion 54, the fixed column 53 is not easily detached from the unlocking claw portion 54.

The box-shaped container according to the present invention is not limited to the above embodiment. For example, in the above-described embodiment, the engagement between the left and right elastic engaging portions 32 and the engaged portion 43 can be released with one handle, but the left and right handles may be provided separately. I do not care.
Moreover, in said embodiment, although the side wall member fell down inside the container, you may make it fall outside. In addition, when it is set as the structure which a side wall member falls outside, what is necessary is just to make the direction of the U-shaped opening of an elastic engagement part, the direction of an engaged part, etc. into the opposite direction to the said embodiment.

1 is a perspective view of an assembled state of an embodiment of a box-shaped container according to the present invention. It is a perspective view of the folded state of the box-shaped container of FIG. It is the perspective view which looked at the side wall member of the long side of the box-shaped container of FIG. 1 from the container inner wall surface side. It is a principal part enlarged view of FIG. It is the perspective view which looked at the side wall member by the side of the short side of the box-shaped container of FIG. 1 from the container outer wall surface side. It is a principal part expansion perspective view of FIG. It is a figure showing the state immediately after shaping | molding of the handle | steering-wheel of the box-shaped container of FIG. 1, Comprising: The figure (a) is a front view, The figure (b) is a perspective view. It is a perspective view showing the assembly state of the handle of FIG. It is a perspective view in the state where the handle of Drawing 8 was attached to the side wall member. It is a perspective view of the state which removed the handle | steering-wheel for demonstrating the engagement state of the elastic engagement part and to-be-engaged part of the box-shaped container of FIG. It is a principal part front view for demonstrating the engagement state of the elastic engagement part and to-be-engaged part of the box-shaped container of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box type container 2 Bottom plate member 3, 4 Side wall member 5 Handle 32 Elastic engaging part 43 Engaged part 51 Handle main body 52 Handle main body biasing part 54 Unlocking claw part

Claims (2)

A rectangular bottom plate member and four side wall members are assembled to form a box, and the four side wall members are rotatably attached to the end edges of the bottom plate via hinges, respectively. In the box-shaped container that can be turned up and down by turning inward or outward around the hinge by releasing,
The locking means is formed on both side edges of the opposite side wall members of the pair of opposing side wall members, and on both side edges of the other pair of opposite side wall members, and is elastically engaged with the engaged parts to form the side walls. Formed from an elastic engagement portion that holds the member in an assembled state,
When the side wall member is in an assembled state, handles disposed at positions where the unlocking claw portions provided at both ends thereof face the elastic engagement portion cause the elastic engagement portion to be elastically deformed by the unlocking claw portion. And a box-shaped container attached to the wall surface of the side wall member provided with the engaged portion so as to be movable in a direction to release the engagement of the elastic engaging portion with the engaged portion. The handle is formed of a single member formed by injection molding, and includes a handle body provided with unlocking claw portions at both ends, and a handle body urging portion that extends from an intermediate portion of the handle body and is elastically deformable. The handle body is provided in the handle mounting recess provided on the outer wall surface of the side wall member so that the unlocking claw portion is urged in the non-engagement release direction of the elastic engagement portion by the elastic restoring force of the handle body urging portion. The box-shaped container according to claim 1, wherein the urging portion is fitted.