JPH10278930A - Returnable case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a returnable case wherein a stacked height of disassembled constitutional members is as low as possible, the number of stackable cases on a container in a disassembled and stored state is largely increased, and rigidity is increased. SOLUTION: The returnable case comprises a rectangular skid 1 to be a bottom frame, a pair of shorter side frames 3, 3 removably coupled to opposite short sides and long sides of the skid and a pair of longer side frames 4, 4 wherein the case can be freely assembled/disassembled. In this case, when the shorter side frame 3 and the longer side frame 4 are removed and made fall down on the skid 1 and respective upper side frame members 3a, 4a reassembled to separate away from each other in opposite directions, respective corner pillars 3b, 4b and reinforcing pillars 3c, 4c do not cross but are fitted between the opposite corner pillar and the reinforcing pillar approximately in parallel and at the same height.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a returnable case that can be assembled and disassembled and used for storing and transporting articles.

[0002]

2. Description of the Related Art A conventional returnable case is disclosed in, for example, Japanese Patent Application Laid-Open No.
JP-A-6-327441, JP-A-7-27733
No. 0 and Japanese Patent Application Laid-Open No. 7-277331. These returnable cases include a rectangular skid serving as a bottom frame, two short-side frames detachably connected to opposing short sides of the skid, and two short-side frames detachably connected to opposing long sides of the skid.
It is composed of two long-side frames, and when disassembling and storing this returnable case, the two short-side frames are placed on the skid so that they do not overlap,
Two long side frames are stacked on top of it,
The height at which the two short-side frames and the two long-side frames overlap each other is the corner member that is provided at the four corners of the skid and that connects the lower ends of the corner posts of the adjacent short-side frames and long-side frames. Those that fit within the height and were stacked in this way could be stacked.

[0003]

In a returnable case such as the above-mentioned conventional example, the returnable case is disassembled, and one layer of two short side frames and two long sides are placed on a frame forming a skid. Since two layers of the frame are stacked on a total of three layers, the stacking height is relatively high. For example, only 16 layers can be stacked and stored in a container of a predetermined size. Was. The present invention has been made in order to solve the above-described problems, and the height of the disassembled storage state is made as low as possible, and the number of containers that can be stacked in a predetermined size container in the storage state is reduced. It is an object of the present invention to provide a returnable case that can be significantly increased and is rigid and can be assembled and disassembled.

[0004]

In order to achieve the above object, the present invention provides a rectangular skid serving as a bottom frame, and a pair of short side frames detachably connected to opposing short and long sides of the skid. In a returnable case that can be assembled and disassembled and includes a pair of long side frames, the skid is provided with leg members at a desired interval on a lower surface of a rectangular frame and a plurality of sliding members at a constant interval on an upper surface. The short side frame and the long side frame are formed by providing a corner member for detachably connecting the lower end portions of the short side frame and the long side frame adjacent to four corners, and the short side frame and the long side frame are perpendicular to both ends or near both ends of the upper side frame material. Connecting means for connecting a corner post to the upper frame member, connecting a reinforcing post vertically to the middle portion or near the middle portion of the upper frame material, and detachably connecting the upper corner portions of the short side frame and the long side frame to each other. Formed and provided, the short side frame and the long side frame are removed and fall down on the skid, and when the respective upper side frame materials are combined so as to be separated to opposite sides, the respective corner struts and reinforcing struts are formed. The returnable case is characterized in that it is configured so as to be fitted between the corner support and the reinforcement support on the other side at substantially the same height without being intersected.

[0005] Further, three first insertion connecting members are provided on both short sides of the frame body, respectively, to which lower end portions of the corner support and the reinforcing support of the short side frame are inserted and connected, respectively. The lower ends of the reinforcing posts are formed longer than the lower ends of both corner posts of the short side frame, and rib pieces having a desired height are provided on both long sides of the frame, and the long side is provided near an intermediate portion of the rib pieces. The returnable case is characterized in that a second plug-in connection member is provided in which the lower end of the reinforcing column of the frame is plugged in. Further, the corner members provided at the four corners of the frame body include a bolt hole for connecting a lower end portion of the corner support of the long side frame with a bolt, a welding hole for welding to the rib piece, and a welding margin. A returnable case characterized by having

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a returnable case according to the present invention will be described in detail with reference to the drawings. Figure 1 shows the returnable case being assembled (or being disassembled).
FIG. 2 is an exploded perspective view showing a state in which a returnable case is disassembled and two short-side frames and two long-side frames are folded on a skid, and FIG. FIG. 4 is a plan view of the skid shown in FIG.
FIG. 5 is a cross-sectional view taken along a line A-B, FIG. 5 is a plan view in which long-side frames are stacked on a skid, FIG. 6 is a cross-sectional view taken along a line BB in FIG. 5, and FIG. FIG. 8 is a plan view in which the upper frame members are turned away from each other, and the corner struts and the reinforcing struts are not parallel to each other but are substantially parallel to each other and are fitted to each other at the same height and fitted between the opposing corner struts and the reinforcing struts. 9 is a cross-sectional view taken along line CC of FIG. 7, FIG. 9 is a plan view of another long side frame stacked on a long side frame and a short side frame that are fitted and combined, and FIG. FIG. 11 is a cross-sectional view taken along the line D. FIG. 11 shows the other long-side frame and the other short-side frame so that their upper frame members are separated from each other. To each other's FIG. 12 is a cross-sectional view taken along the line EE in FIG. 11, and FIG. 13 is a top view of the long-side frame and the short-side frame fitted and combined. Plan view of stacking reinforcement arms on
FIG. 14 is a sectional view taken along line FF of FIG.

In FIG. 1, reference numeral 1 denotes a skid serving as a bottom frame, reference numeral 2 denotes a rectangular frame which is close to a square forming the skid, and reference numerals 3 and 3 removably connect to opposing short sides 2a, 2a of the frame 2. A pair of short side frames, 4 and 4 are a pair of long side frames detachably connected to opposing long sides 2b, 2b of the frame 2, and 5 are detachably mounted on top of the pair of long side frames 4, 4. It is a reinforcement arm that is laid horizontally.

Further, as shown in FIGS. 3 and 4, the frame 2
The leg members 2c, 2c are positioned at the short sides 2a, 2a facing each other.
And another leg member 2c 'is disposed between the leg members 2c and 2c, and a forklift claw is inserted between the leg member 2c' and the two leg members 2c and 2c. . Long sides 2b facing the upper surfaces of both ends of the legs 2c, 2c ', 2c,
A supporting member 7 is provided with rib pieces 2h, 2h having a desired height of 2b, and a lower end 4c-1 of a reinforcing column 4c of a long side frame 4 described later is inserted near an intermediate portion between the rib pieces 2h, 2h. Is provided.

Further, support members 8, 8, and, into which corner supports 3b, 3b of the short side frame 3 and a lower end of the reinforcing support 3c to be described later are inserted at predetermined intervals between the two leg members 2c, 2c.
8 are provided, and a plurality of sliding members 2d are juxtaposed at regular intervals on the upper surfaces of the leg members 2c, 2c ', and 2c. Furthermore,
At four corners of the frame 2, corner members 10 having a predetermined height to which lower ends of corner supports 4b of the long side frame 4 described later are detachably connected are provided.

Also, as shown in FIG.
The upper frame member 3a, the corner posts 3b, 3b vertically connected near both ends thereof, and the upper frame member 3a
, A reinforcing column 3c vertically connected to an intermediate portion between the corner columns 3b, 3b, and between the lower ends of the corner columns 3b, and the corner columns 3b, 3b.
Truss 3f, 3f, 3f, which is a thin plate provided between the lower end of the upper frame member 3a and the intermediate portion of the upper frame member 3a. At the lower end of both ends of the upper frame member 3a, there are provided connecting pieces 3d, 3d detachably connected to the upper end of a corner post 4b of the long side frame 4 described later. This connecting piece 3d
A protrusion 11 is provided at an upper portion of the returnable case so as to fit into a concave portion on the lower surface of the returnable case to be stacked.

The long side frame 4 comprises an upper side frame member 4a and corner posts 4b vertically connected to both ends thereof.
4b, a reinforcing column 4c vertically connected to a position eccentric from the center of the upper frame member 4a, and corner columns 4b, 4
b, and thin reinforcing trusses 4f, 4f, 4 provided so as to intersect between the inside of the lower end of b and between the inside of the lower end of the corner pillars 4b, 4b and the inside of both ends of the upper frame member 4a.
and f. The reinforcing columns 4c, 4c of the pair of long side frames 4, 4 are eccentric in the same direction from the center of each upper side frame member 4a.

At the upper ends of the corner posts 4b, connecting members 12 are connected to the connecting pieces 3d at both ends of the upper frame member 3a of the short side frame 3. At the lower end, connecting portions 4d, 4d for connecting to the corner members 10, 10 are provided, and furthermore, both ends of the upper frame member 4a and the corner posts 4 are provided.
Reinforcing plates 4e, 4e are provided at the corners with the upper ends of b, 4b, and one ends of the intersecting reinforcing trusses 4f, 4f are welded through the reinforcing plates 4e, 4e. Although the reinforcing trusses 3f and 4f are plate-shaped, the present invention is not limited to this, and a pipe 20 as shown in FIG.
As shown in (b), it may be formed by flattening. The reinforcing truss formed by flattening this pipe increases rigidity and has no corners, so that the corners are not injured when the short side frame 3 and the long side frame 4 are handled.

As shown in detail in FIG. 18 (a), the reinforcing arm 5 has an upper frame member 4a perpendicular to both ends thereof.
An engagement piece 5a having an inverted concave shape is provided to be fitted in the middle portion, and holes 5b, 5b are formed on the left and right outside the engagement piece 5a. In this manner, the holes 5b, 5b are formed on the left and right because the reinforcing arm 5 is oriented in either direction because the reinforcing plate 4g provided at the corner of the upper frame member 4a and the reinforcing column 4c provided perpendicular to the upper frame member 4a. Projection 13 and any one of the holes 5
This is because b can be fitted and fitted. Further, the engagement piece 5a
A concave groove 5c is formed at the upper end of the frame 2. The leg member 2c 'of the frame 2 can be fitted into the concave groove 5c, and the assembled returnable case can be stably loaded without rattling. . FIG. 18B is a perspective view showing a state in which an engagement piece 5a provided at an end of the reinforcing arm 5 is fitted to the upper frame member 4a of the long frame 4.

Further, as shown in FIG. 19A, a screw hole 14 is provided in place of the projection 13 protruding from the reinforcing plate 4g, and as shown in FIG. The bolt 16 inserted into any one of the holes 5b by fitting into the upper frame member 4a of the long side frame 4 can be fastened and fixed to the screw hole 14.

FIG. 15 shows that the corner pillars 3b and the reinforcing pillars 3c of the short side frame 3, which are provided at predetermined intervals of the leg members 2c to be the short sides 2a of the frame 2, are inserted. FIG. 4 is a perspective view showing a supporting member 8 to be supported in detail, in which an L-shaped horizontal piece 8a is welded to the upper surface of the leg member 2c, and a corner post is formed at a corner between the horizontal piece 8a and the vertical piece 8b. 3b or insertion piece 3b provided at the lower end of reinforcing column 3c
An insertion hole 8c into which -1 or 3c-1 is inserted and supported is formed. Also, the insertion piece 3c-1 of the reinforcing column 3c of the short side frame 3 is formed longer than the insertion pieces 3b-1, 3b-1 of the corner columns 3b, 3b. The short side frame 3 can be easily positioned simply by inserting the piece 3c-1.

FIG. 16 shows four corners of the frame 2.
FIG. 4 is a perspective view showing in detail a corner member 10 having a predetermined height to which a lower end portion of a corner support 4b of the long side frame 4 is detachably connected, and the corner member 10 is formed by an angle plate, A welding hole 10c for facilitating welding work to the bolt insertion hole 10b and the rib piece 2h is formed in 10a, and a joining portion (welding margin) 10e with the end of the rib piece 2h is formed in the other piece 10d. Are formed. Due to the joint portion (welding margin) 10e of the corner member 10, the welding strength of the corner member 10 to the rib piece 2h is increased, and the corner member 10 is firmly welded.

FIG. 17 shows the connection between the connecting member 12 provided at the upper end of the corner post 4b of the long side frame 4 and the connecting pieces 3d at both ends of the upper side frame member 3a of the short side frame 3 in detail. FIG. 4 is a perspective view of the connecting member, in which a bent portion 12a inward is formed in a part of the connecting member 12;
The bolts 16 inserted into the bolt insertion holes formed in the long side frame 4 are fastened to the bolt holes provided in the connecting piece 3d, and the upper end portion of the corner post 4b of the long side frame 4 and the upper side frame member 3a of the short side frame 3 are tightened. To be connected to the end.
Further, a not-shown notch is formed in the periphery of the bolt hole in the connecting piece 3d of the short side frame 3 to prevent the rotation of the clip nut.

As described above, the inwardly bent portion 12a is formed in a part of the connecting member 12, and the bent portion 12a is
6, the head of the bolt 16 can be prevented from protruding from the outer surface of the returnable case. Further, the protrusion 11 protruding from the upper surface of the end portion of the upper frame member 3a of the short side frame 3 suppresses the height (thickness) of the short side frame 3 when folded, so that the protrusion has a semicircular shape. ing.

When disassembling and storing or transporting the returnable case, when the two short side frames 3 and 3 and the two long side frames 4 and 4, which are the constituent members of the returnable case, are stacked, first, the facing two frames are placed. The reinforcing arm 5 connected between the upper frame members 4a, 4a of the long side frames 4, 4 is removed. And connecting members 12, 12 provided at the upper end portions of both corner posts 4b, 4b of the two long side frames 4, 4;
The upper frame material 3 of the two opposite short frames 3.3
The bolts 16, 16 connecting the connecting pieces 3d, 3d provided at both ends of a are removed (see FIG. 17).
The support members 8, 8, provided with the insertion pieces 3b-1, 3b-1 of the two corner supports 3b, 3b and the insertion piece 3c-1 of the reinforcement support 3c on the leg material 2c which is the opposite short side 2a. 8 insertion holes 8
c, 8c, 8c (see FIG. 15), and the short side frame 3 is removed. Further, the bolts 16, 16 that fasten the connecting portions 4 d, 4 d at the lower ends of the corner supports 4 b, 4 b of the long side frame 4 to the corner members 10, 10 provided at the four corners of the frame 2 are removed, and Remove the side frame 4.

Next, as shown in FIGS. 5 and 6, an upper frame member 4a of one long side frame 4 is positioned on a rib piece 2h side on a rectangular frame 2 forming the skid 1. As shown in FIG. As shown. Then, as shown in FIGS. 7 and 8, the short side frame 3 is rotated by 90 ° from the detached state, and the upper side frame member 3 a is turned down so as to be located on the other rib piece 2 h side. Upper frame material 4a
And the upper frame member 3a of the short side frame 3 is separated from each other on the opposite side, and the short side frame 3 is positioned between the corner posts 4b, 4b of the long side frame 4 and the reinforcing posts 4c.
The corner posts 3b, 3b and the reinforcing posts 3c are fitted and mounted so as to be substantially parallel and at the same height without intersecting.

At this time, since the reinforcing columns 4c of the long side frame 4 are connected to positions eccentric from the center, they do not overlap with the reinforcing columns 3c of the short side frame 3 and the corner columns 3b of the short side frame 3 , 3b are upper frame members 3
a, the corner supports 3b, 3b of the short side frame 3 do not overlap with the corner supports 4b, 4b of the long side frame 4, so that the short side frame 3 and the long side frame 3 are connected to each other. 4 can be fitted and mounted on the skid 1 without overlapping.

9 and 10 in the same manner as described above.
As shown in the figure, the other long side frame 4 is placed on the short side frame 3 and the long side frame 4 which are fitted and combined so that the upper side frame member 4a is located on the rib piece 2h side. Further, as shown in FIGS. 11 and 12, the other short side frame 3 is rotated by 90 ° from the detached state, and the upper side frame member 3a is turned down so as to be positioned on the other rib piece 2h side, and Upper frame material 4 on which long frame 4 is described
a between the corner supports 4b, 4b of the long side frame 4 and the reinforcing support 4c so that the upper side frame member 3a and the upper side frame member 3a of the other short side frame 3 are away from each other. The columns 3b, 3b and the reinforcement columns 3c are fitted and placed so as to be substantially parallel and at the same height without intersecting. Finally, as shown in FIG. 13 and FIG. 14, the rib pieces 2 serving as the opposed long sides 2 b of the frame 2 are formed.
The engaging pieces 5a, 5a at both ends of the reinforcing arm 5 are fitted between h and 2h.

As described above, the disassembled one short side frame 3 and one long side frame 4 are oriented so that the upper side frame member 3a and the upper side frame member 4a are away from each other, as described above. These corner struts and reinforcing struts are fitted on the frame 2 forming the skid 1 by being fitted so that they do not intersect and are substantially parallel and have the same height, so that they do not overlap. When the other short side frame 3 and long side frame 4 are sequentially stacked by being fitted and combined in the same manner as described above, one layer of one short side frame 3 and one long side frame 4 A total of two layers, one short-side frame 3 and one long-side frame 4, are stacked, so that the stacking of the two short-side frames 3, 3 and the two long-side frames 4, 4 can be reduced, Disassemble and stack in this way 20-returnable cases housed state to a predetermined size of the container, it is possible to stacking storage.

FIG. 21 is a side view in which two small returnable cases X of the present invention are placed side by side on a large returnable case Y twice as long as that of FIG. It is an enlarged perspective view of the part enclosed with the dashed-dotted line. In this embodiment, a hemispherical concave portion 2 is formed on the lower surface of the leg material 2c.
c ₁ is provided, and when the two small returnable cases X, X of the present invention are placed on the large returnable case Y, the hemispherical recess 2 c ₁ is provided in the large returnable case Y. The two small returnable cases X can be stably placed on the large returnable case Y by being fitted to the protruding protrusions 18.

[0025]

As described above, according to the present invention, one of the short side frames and one of the long side frames obtained by disassembling the returnable case are oriented so that the upper frame members are separated to the opposite sides. When mated and combined, each corner support and reinforcement support are fitted between the opposite corner support and reinforcement support at approximately the same height and at the same height without crossing each other. The other short side frame and long side frame combined in the same manner are placed on one short side frame and long side frame which are fitted and combined and placed, so that two layers of skid are placed on the skid. The stacking height is lower than the returnable case as in the conventional example, and the stacking amount in a predetermined container is correspondingly increased, which is extremely advantageous in storage and transportation. .

According to the returnable case according to the second aspect of the present invention, the corner columns of the short side frame and the lower ends of the reinforcing columns are inserted and connected to both short sides of the frame.
The first plug-in connection member is provided, and the second plug-in connection member to which the lower end portion of the reinforcing column of the long side frame is plugged and connected near the middle portion of the rib pieces on both long sides of the frame body. Therefore, rattling during assembly can be prevented, and the rigidity of the short side frame and the long side frame can be increased. Furthermore, since the lower end of the reinforcing column of the short side frame is formed longer than the lower end of both corner columns of the short side frame, the positioning of the short side frame can be easily performed only by inserting the lower end of the central reinforcing column during assembly. Can be. According to the returnable case according to the third aspect of the present invention, since the welding hole and the welding margin are provided in the corner member, the welding operation is facilitated by the welding hole, and the corner member is formed into a rib piece by the welding margin. Can be welded firmly.

[Brief description of the drawings]

FIG. 1 is a perspective view of a returnable case according to the present invention during assembly (or during disassembly).

FIG. 2 is a perspective view showing a state in which the returnable case of the present invention is disassembled and two short side frames and two long side frames are folded and stacked on a skid.

FIG. 3 is a plan view of a skid serving as a bottom frame of the returnable case of the present invention.

FIG. 4 is a cross-sectional view taken along line AA of FIG.

FIG. 5 is a plan view in which long side frames are stacked on the skid of the present invention.

FIG. 6 is a sectional view taken along line BB in FIG. 5;

FIG. 7 shows a short side frame and a short side frame on a long side frame so that the upper side frame members are separated from each other on the opposite side. It is the top view which fitted and combined between the support | pillars.

FIG. 8 is a sectional view taken along line CC of FIG. 7;

FIG. 9 is a plan view in which another long-side frame is stacked on a long-side frame and a short-side frame that are fitted and combined.

FIG. 10 is a sectional view taken along line DD in FIG. 9;

FIG. 11 shows another long side frame and another short side frame with their upper side frame members away from each other on the opposite side. It is the top view which fitted and combined between the corner support | pillar and the reinforcement support | pillar.

FIG. 12 is a sectional view taken along line EE of FIG. 11;

FIG. 13 is a plan view in which reinforcing arms are stacked on a long side frame and a short side frame placed in combination.

FIG. 14 is a sectional view taken along line FF of FIG. 13;

FIG. 15 is a perspective view showing in detail a support member into which a lower end portion of a corner support and a reinforcing support of the short side frame is inserted and supported.

FIG. 16 is a perspective view showing in detail a corner member to which a lower end portion of a corner support of a long side frame provided at four corners of a frame forming a skid is detachably connected.

FIG. 17 is a perspective view showing in detail a connection state between a connection member provided at an upper end portion of a corner support of a long side frame and connection pieces at both ends of an upper frame material of the short side frame.

FIG. 18 is a perspective view showing in detail a part of a reinforcing arm connected between upper frame members of a long frame.

FIG. 19 is a perspective view showing in detail a part of a reinforcing arm of another embodiment connected between upper frame members of a long frame.

FIG. 20 is an explanatory view of a reinforcing truss according to another embodiment.

FIG. 21 is a side view in which two small returnable cases of the present invention are placed side by side on a large returnable case twice as long.

FIG. 22 is a perspective view showing in detail a part of a state in which two small returnable cases of the present invention are placed side by side on a large returnable case twice as long as the small returnable case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Skid 2 Rectangular frame 2a Short side 2b Long side 2c, 2c 'Leg 2d Sliding material 2h Rib piece 3 Short side frame 3a Upper side frame material 3b Corner support 3b-1 Insert piece 3c Reinforcement support 3c-1 Insert Piece 3d connecting piece 3f reinforcing truss 4 long side frame 4a upper frame material 4b corner support 4c reinforcing support 4c-1 insertion piece 4e reinforcing plate 4d connecting part 4f reinforcing truss 5 reinforcing arm 5a engaging piece 5b hole 5c concave groove Reference Signs List 7 Support member (second insertion connection member) 8 Support member (first insertion connection member) 10 Corner member 10b Bolt insertion hole 10c Welding hole 10e Joint (welding) 11 Projection 12 Connection member 13 Projection 16 bolt

Claims (3)

[Claims] An assemblable and disassemblable returnable case comprising a rectangular skid as a bottom frame, a pair of short side frames and a pair of long side frames detachably connected to opposing short and long sides of the skid. In the skid, a leg member is provided at desired intervals on a lower surface of a rectangular frame, and a plurality of sliding members are provided at regular intervals on an upper surface, and lower ends of the short-side frame and the long-side frame adjacent to four corners of the frame. The short-side frame and the long-side frame are formed by connecting corner supports vertically to both ends or near both ends of the upper-side frame member, and the middle portion or the middle of the upper-side frame member is formed. The reinforcing column is vertically connected to the vicinity of the portion, and a connecting means for detachably connecting the upper corners of the short side frame and the long side frame to each other is provided. When removed and laid on the skid and combined so that the upper frame members are separated from each other on the opposite side, the respective corner struts and reinforcing struts do not intersect and are substantially parallel and opposite to each other at the same height. A returnable case characterized in that it is configured to be fitted between the corner support and the reinforcement support. 2. The short-side frame is provided with three first insertion connection members to which lower ends of a corner support and a reinforcing support of the short-side frame are respectively inserted and connected on both short sides of the frame. The lower ends of the reinforcing posts are formed longer than the lower ends of both corner posts of the short side frame, and rib pieces having a desired height are provided on both long sides of the frame, and the long side is provided near an intermediate portion of the rib pieces. The returnable case according to claim 1, further comprising a second insertion connection member to which a lower end of the reinforcing column of the frame is inserted and connected. 3. A corner member provided at each of the four corners of the frame body has a bolt hole for bolting a lower end portion of a corner support of the long side frame and a welding hole for welding to the rib piece. The returnable case according to claim 1 or 2, further comprising a margin.