JP3986693B2 - Carrying container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, when stacking empty transport containers (hereinafter, transport containers are also simply referred to as “containers”), an upper container is fitted into a lower container, so-called nesting. In addition, when stacking containers in which the contents are stored, the container positioned above is stacked so as not to be fitted into the container positioned below, so-called stackable containers. is there.
[0002]
[Prior art]
Below, the conventional conveyance container is demonstrated using FIGS.
[0003]
The container is composed of a bottom portion 1, opposing long side walls 2a and 2b slightly inclined outward, and opposing short side walls 2c and 2d which are also slightly inclined outward. Further, a bottom fitting portion 1a is formed on the lower surface of the bottom portion 1 so as to be fitted into the opening of the container located below when the container is stacked. Note that, when referring to the side walls, in general, regardless of the long side walls 2a, 2b and the short side walls 2c, 2d, they are simply referred to as the side walls 2.
[0004]
Reference numeral 3 denotes a horizontal flange 3 formed at the upper ends of the long side walls 2a, 2b and the short side walls 2c, 2d so as to surround the opening of the container. The flange 3 along the long side walls 2a, 2b is formed with a recess 3a in a straight line, and by forming the linear recess 3a, along the edge of the opening of the container, A convex rail 3b is formed. Note that horizontal ribs 4 a and vertical ribs 4 b are formed on the outer wall of the side wall 2 as necessary.
[0005]
Reference numeral 5 denotes a pocket made of a vertically long recess formed on the inner wall near the corner of the side wall 2 from the flange 3 toward the bottom 1, and has a depth approximately half that of the container. 6 is a support leg formed on the outer wall of the side wall 2 adjacent to the pocket 5 or with an appropriate gap from the pocket 5 and closer to the center than the pocket 5, and the support leg 6 is formed to extend to the vicinity of the bottom 1. Has been. The support leg 6 includes vertical ribs 6a and 6b projecting from the side wall 2 at a predetermined interval and a horizontal rib 6c that connects lower ends of the vertical ribs 6a and 6b. A groove 6d is formed along the side wall 2 on the lower surface of the horizontal rib 6c, and accordingly, a protruding portion 6e directed downward is formed at the outer lower end portion of the support leg 6. When the containers are stacked in a stacking state, the protrusions 6e of the upper support legs 6 are inserted into the recesses 3a of the lower flange 3 of the lower container. The groove 6d of the support leg 6 is configured such that the convex rail 3b of the flange 3 of the container located below is inserted. The inner width of the pocket 5 is formed larger than the outer width of the support leg 6. Hereinafter, such a combination of the wide pocket 5 and the narrow support leg 6 is referred to as a wide pocket / support leg part P.
[0006]
7 is a support leg similar to the narrow support leg 6 described above, formed on the outer wall near the corner of the side wall 2. The support leg 7 is formed by vertical ribs 7a and 7b protruding from the side wall 2 at a predetermined interval and a horizontal rib 7c connecting the lower ends of the vertical ribs 7a and 7b. A groove 7 d is formed along the side wall 2 on the lower surface of the horizontal rib 7 c, and accordingly, a projecting portion 7 e facing downward is formed at the outer lower end portion of the support leg 7. As described above, when the containers are stacked in a stacking state, the protrusion 7e of the support leg 7 of the upper container is inserted into the recess 3a of the flange 3 of the lower container, A convex rail 3b of the flange 3 of the container located below is inserted into the groove 7d of the support leg 7 of the container located above. 8 is a pocket consisting of a vertically long recess formed in the inner wall of the side wall 2 near the center of the support leg 7 with an appropriate gap adjacent to the support leg 7 and is approximately half the depth of the container. Have The outer width of the support leg 7 is formed larger than the inner width of the pocket 8. Hereinafter, such a combination of the wide support leg 7 and the narrow pocket 8 is referred to as a wide support leg / pocket portion C.
[0007]
The outer width of the narrow support leg 6 of the wide pocket / support leg P is formed narrower than the inner width of the narrow pocket 8 of the wide support leg / pocket part C. Therefore, when nesting, The narrow support leg 6 of the support leg P is configured to be inserted into the narrow pocket 8 of the wide support leg / pocket part C. Further, the outer width of the wide support leg 7 of the wide support leg / pocket part C is formed narrower than the inner width of the wide pocket 5 of the wide pocket / support leg part P. Therefore, when nesting, the wide support leg / pocket The wide support leg 7 of the part C is configured to be inserted into the wide pocket 5 of the wide pocket / support leg part P.
[0008]
3 to 6, the wide pockets / support legs P described above are arranged in opposition to each other in the vicinity of one corner of the opposing long side walls 2 a, 2 b, and the opposing long side walls 2 a, In the vicinity of the other corner of 2b, an example is shown in which wide support legs / pocket portions C are arranged so as to face each other. Further, wide support legs / pocket portions C are arranged in the vicinity of the corners of the short side walls 2c closer to the wide pockets / support legs P arranged on the opposed long side walls 2a, 2b of the opposed short side walls 2c, 2d. Further, in the vicinity of the corner of the short side wall 2d closer to the wide supporting leg / pocket portion C disposed on the opposing long side walls 2a, 2b of the opposing short side walls 2c, 2d, there is a wide pocket / supporting leg. Part P is arranged. Wide pockets / support legs P are arranged near both corners of one long side wall 2a, and wide support legs / pocket parts C are arranged near both corners of the other long side wall 2b. You can also
[0009]
The lower container and the upper container are positioned in the same direction, that is, above the wide pocket / support leg P of the lower container, the wide pocket / support leg of the upper container. When the containers are stacked such that P is positioned and the wide supporting leg / pocket portion C of the upper container is positioned above the wide supporting leg / pocket portion C of the lower container, the upper position is positioned. Since a total of eight supporting legs 6 and 7 of the container are respectively mounted on the flange 3 adjacent to the pockets 5 and 8 of the lower container, the upper container is placed on the lower container. Will be stacked.
[0010]
Further, from the stacking state, the upper container is rotated 180 degrees in a plane, so that the lower container and the upper container are in different directions, that is, are positioned below. Above the wide pocket / support leg P of the container, the wide support leg / pocket part C of the upper container is positioned, and above the wide support leg / pocket part C of the lower container. When placed so that the wide pocket / support leg P of the container is located, the support 5 of the wide support leg / pocket portion C of the container located above is placed in the pocket 5 of the wide pocket / support leg P of the container located below, Further, the support legs 6 of the wide pockets / support legs P positioned above are respectively inserted into the pockets 8 of the wide support legs / pocket parts C positioned below, and therefore approximately half of the container positioned above. Of the underlying container Fitted in the parts will be nested.
[0011]
Next, so-called slide stacking in which stacking is performed while sliding the upper container Bu along the flange 3 of the lower container Bb will be described with reference to FIG.
[0012]
One short side wall 2d of the upper container Bu is lifted, and the long leg 2a, 2b of the wide pocket / support leg P located on the short side wall 2c side is supported by the long side wall 2a of the lower container Bb. The upper container Bu is placed on the lower flange 3 of the container Bb so that it is positioned in the middle of the flange 3 on the 2b side. At this time, the bottom fitting portion 1a formed on the lower surface of the bottom portion 1 of the container Bu positioned above is fitted into the opening of the container Bb positioned below and the support leg 6 of the container Bu positioned above. The protruding portion 6e is inserted into the recess 3a of the flange 3 of the container Bb positioned below, and the convex rail 3b of the flange 3 of the container Bb positioned below is inserted into the groove 6d of the support leg 6 of the container Bu positioned above. Is inserted.
[0013]
Next, with one short side wall 2d of the upper container Bu being lifted, the bottom fitting portion 1a of the bottom 1 on the short side wall 2d side of the upper container Bu is placed on the lower side of the container Bb. While being placed on the flange 3, the upper container Bu is slid along the flange 3 on the long side walls 2 a and 2 b of the lower container Bb. The protrusion 6e is inserted into the recess 3a of the flange 3 of the container Bb positioned below, and the convex rail 3b of the flange 3 of the container Bb positioned below is inserted into the groove 6d of the support leg 6 of the container Bu positioned above. In a state where is inserted, slide stacking is performed.
[0014]
[Problems to be solved by the invention]
In the above-described container, the bottom fitting portion 1a of the bottom portion 1 of the container Bu located above can be easily fitted into the opening of the container Bb located below during slide stacking. The gap between the inner wall surface of the side wall 2 of the container Bb and the outer peripheral wall surface of the bottom fitting portion 1a of the bottom portion 1 of the container Bu positioned on the upper side of the container Bb. Yes. Because of such fitting backlash, during slide stacking, the bottom fitting portion 1a of the bottom portion 1 of the container Bu positioned on the upper side of the opposing long side walls 2a and 2b of the container Bb positioned on the lower side When placed on one of the long side walls, for example, the side of the long side wall 2a, the protruding portion 6e of the support leg 6 on the side of the long side wall 2b of the container Bu positioned on the upper side of the container Bb positioned on the lower side The protrusion 6e of the support leg 6 on the long side wall 2b side of the container Bu placed on the upper surface of the flange 3 is not inserted into the recess 3a of the flange 3 or the container Bb located on the lower side. Placed on the upper surface of the convex rail 3b of the flange 3, the upper container Bu tilts, and the upper container Bu moves laterally with respect to the sliding direction, ensuring reliable and stable slide stacking. There was a problem that could not. Since the container itself often has dimensional variation, deformation, etc., the above problem becomes more serious.
[0015]
An object of the present invention is to provide a transport container having improved workability while solving the problems of the conventional transport container described above.
[0016]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention has a bottom portion having a bottom fitting portion formed on the lower surface, a long side wall facing the bottom portion, and a short side wall facing the bottom portion, and the long side so as to surround the opening. A flange is formed at the upper ends of the side wall and the short side wall, and a pocket is formed at least on the inner wall of the opposite long side wall, and an outer wall of the opposite long side wall is adjacent to the pocket. Further, a support leg is formed, and a convex rail is formed along the edge of the opening by forming a linear recess in the flange, and further, a long side wall is formed on the lower surface of the support leg. In the transport container in which the groove is formed and the projecting portion facing downward is formed at the outer lower end of the support leg, the first is located below a center line parallel to the long side wall of the transport container , Transport container and a center line parallel to the long side wall of the transport container positioned on top, so as to lie in the same imaginary vertical plane, the bottom fitting section of the bottom of the transport container positioned on top, positioned below with fitted in the opening of the projecting portion of the support leg of the transport container positioned on top, is inserted into the recess of the flange of the transport container positioned underneath, the groove of the support leg of the transport container positioned above, below when flange formed convex rail transport container positioned is inserted into, and backlash N between the support legs of the transport container positioned on an inner wall surface of the long side wall of the transport container positioned underneath, The relationship between the protrusion M of the support leg of the transport container positioned above and the convex rail of the flange of the transport container positioned below is defined as N ≦ M. the vertical wall and the top of the outer peripheral edge of the flange which constitutes the flange recess of the carrier container located Of the backlash L between the support legs arranged in the long side wall of the transport container that location, the backlash N between the support legs of the transport container positioned on the inner wall surface of the long side wall of the transport container positioned underneath The relationship is N ≦ L.
[0017]
【Example】
As described above, for slide stacking, as shown in FIG. 6, the protrusion 6e of the support leg 6 of the upper container Bu is inserted into the recess 3a of the flange 3 of the lower container Bb. At the same time, the convex rail 3b of the flange 3 of the container Bb positioned below is inserted into the groove 6d of the support leg 6 of the container Bu positioned above. A partially enlarged vertical section parallel to 2d is shown, and FIG. 2 shows a vertical section parallel to the short side walls 2c and 2d in the vicinity of the support leg 6. Examples of the present invention will be described with reference to FIG. 1 and FIG. 2, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded. Constituent members such as the bottom 1, the long side walls 2a and 2b, the short side walls 2c and 2d, the flange 3, the pockets 5 and 8, and the support legs 6 and 7 constituting the transport container are the same as those of the conventional transport container described above. Therefore, the detailed description thereof is omitted and the same reference numerals are used.
[0018]
As described in the prior art, one short side wall 2d of the upper container Bu is lifted, and the support legs 6 of the wide pockets / support legs P positioned on the short side wall 2c side of the long side walls 2a, 2b are The container Bu positioned above is placed on the flange 3 of the container Bb positioned below so that it is positioned in the middle of the flange 3 on the side of the long side walls 2a and 2b of the container Bb positioned in the position B. At this time, the bottom fitting portion 1a formed on the lower surface of the bottom portion 1 of the container Bu positioned above is fitted into the opening of the container Bb positioned below and the support leg 6 of the container Bu positioned above. The protruding portion 6e is inserted into the recess 3a of the flange 3 of the container Bb positioned below, and the convex rail 3b is inserted into the groove 6d of the support leg 6 of the container Bu positioned above.
[0019]
In the present invention, a center line X (see FIG. 4) parallel to the long side walls 2a, 2b of the container Bb located below, and a center line parallel to the long side walls 2a, 2b of the container Bu located above. The bottom fitting portion 1a of the bottom portion 1 of the container Bu located on the upper side is fitted into the opening of the container Bb located on the bottom so that X is located on the same virtual vertical plane, and The protrusion 6e of the support leg 6 of the container Bu located is inserted into the recess 3a of the flange 3 of the container Bb positioned below, and the groove 6d of the support leg 6 of the container Bu positioned above is inserted into the groove 6d of the container Bb positioned below. When the convex rail 3b of the flange 3 is inserted, the backlash N between the inner wall surfaces 2a ', 2b' of the long side walls 2a, 2b of the container Bb positioned below and the support legs 6 of the container Bu positioned above And the protrusion 6e of the support leg 6 of the upper container Bu and the lower frame of the container Bb. The relationship between backlash M between the convex rails 3b di 3, in which the N ≦ M.
[0020]
As described above, the backlash N between the inner wall surfaces 2a 'and 2b' of the long side walls 2a and 2b of the container Bb positioned below and the support leg 6 of the container Bu positioned above and the container Bu positioned above By setting N ≦ M as the relationship between the protrusion 6e of the support leg 6 and the convex rail 3b of the flange 3 of the container Bb located below, in FIG. 1 and FIG. Even if the support leg 6 disposed on the long side wall 2a of the container Bu located at the center is biased rightward so as to contact the inner wall surface 2a 'of the long side wall 2a of the container Bb located below, The support leg 6 disposed on the long side wall 2b of the container Bu to be mounted is not placed on the convex rail 3b of the flange 3 of the container Bb positioned below, so that the container Bu positioned above is not Quick and stable slide stacking without tilting .
[0021]
Further, the center line X parallel to the long side walls 2a and 2b of the container Bb positioned below and the center line X parallel to the long side walls 2a and 2b of the container Bu positioned above are positioned on the same virtual vertical plane. When the upper container Bu is placed on the flange 3 of the lower container Bb, preferably, the outer side of the flange 3 constituting the recess 3a of the lower flange 3 of the container Bb is placed. A backlash L between the vertical wall 3a ′ on the peripheral edge 3 ′ side and the support legs 6 disposed on the long side walls 2a and 2b of the container Bu located above, and the long side wall 2a of the container Bb located below, The relationship between the inner wall surfaces 2a ′ and 2b ′ of 2b and the backlash N between the support legs 6 of the container Bu located on the upper side is defined as N ≦ L. With this configuration, in FIG. 1 and FIG. 2, the support leg 6 disposed on the long side wall 2b of the upper container Bu is placed on the inner wall surface 2b ′ of the long side wall 2b of the lower container Bb. Even if it comes into contact, it is possible to prevent the support leg 6 protruding portion 6e disposed on the long side wall 2b of the upper container Bu from being placed on the upper surface of the flange 3 of the lower container Bb, Faster and more stable slide stacking can be performed.
[0022]
The configuration of the present invention is not limited to the transport container having the above-described structure, and the support leg of the upper container having the above-described structure is mounted on the flange of the lower container having the above-described structure. It can be applied to all transport containers that can be placed and slide stacked.
[0023]
【The invention's effect】
Since the present invention has the configuration as described above, the following effects are achieved.
[0024]
During slide stacking, the bottom fitting part of the upper container can be easily fitted to the opening of the lower container, and the upper container is not tilted. Quick, stable slide stacking can be performed.
[0025]
Even when the container itself has dimensional variation, deformation, or the like, the bottom fitting portion of the upper container can be easily fitted to the opening of the lower container.
[0026]
By simply fitting the bottom fitting part of the upper container to the opening part of the lower container, the support leg of the upper container is connected to the convex rail of the lower flange of the container. Accordingly, the slide stacking can be performed quickly and stably.
[Brief description of the drawings]
FIG. 1 is a partially enlarged vertical sectional view parallel to a short side wall in the vicinity of a support leg of a transport container according to the present invention.
FIG. 2 is a vertical sectional view parallel to the short side wall in the vicinity of the support leg of the transport container of the present invention.
FIG. 3 is a perspective view of a conventional transport container.
FIG. 4 is a plan view of a conventional transport container.
FIG. 5 is a front view of a conventional transport container.
FIG. 6 is a perspective view for explaining a conventional slide stacking process of a transport container.
[Explanation of symbols]
C: Wide support leg / pocket part P ... Wide pocket / support leg part 1 ... Bottom part 2 ... Side wall 2a, 2b... Long side wall 2c, 2d... Short side wall 3. .... Support legs 6e, 7e ... Projection

Claims (2)

The bottom surface has a bottom fitting portion formed on the lower surface, a long side wall facing the bottom, and a short side wall facing the bottom, and a flange is formed at the upper end of the long side wall and the short side wall so as to surround the opening. Further, a pocket is formed at least on the inner wall of the opposed long side wall, and a support leg is formed on the outer wall of the opposed long side wall adjacent to the pocket. By forming a linear recess, a convex rail is formed along the edge of the opening, and further, a groove is formed along the long side wall on the lower surface of the support leg. by forming, transfer vessel to the outside lower end of the support leg, in transport containers protrusions facing downward is formed, which is located on the center line parallel to the long side wall of the transport container positioned underneath The center line parallel to the long side wall of So as to lie in the same imaginary vertical plane, with the bottom fitting section of the bottom of the transfer vessel located above is fitted into the opening of the transport container positioned underneath, the transport container positioned above support leg the protrusion is inserted into the recess of the flange of the transport container positioned underneath, the groove of the support leg of the transport container positioned above the convex rails formed in the flange of the transport container positioned underneath is inserted when, transport container positioned backlash and N, below the projecting portion of the support leg of the transport container positioned above between the support legs of the transport container positioned on the inner wall surface of the long side wall of the transport container positioned underneath A transport container characterized in that the relation between the flange and the convex rail of the flange and the play M is N ≦ M. And backlash L between the support legs arranged in the long side wall of the transport container positioned above the vertical walls of the outer peripheral edge of the flange which constitutes the concave portion of the flange of the transport container positioned underneath, the transport container positioned underneath The transport container according to claim 1, wherein the relationship between the inner wall surface of the long side wall and the backlash N between the support legs of the transport container positioned above is N ≦ L.

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