JP6081141B2 - Folding container - Google Patents

Description

  The present invention relates to a folding container that can be folded so that a side wall disposed so as to surround the bottom portion overlaps the bottom portion.

  Conventionally, the long side wall connected to the opposite long side part of the bottom part formed in a substantially rectangular plane shape via a hinge member, and similarly connected to the opposite short side part of the bottom part via a hinge member. It is assembled into a box shape by standing the long side wall and the short side wall substantially perpendicular to the bottom part, and when folded, the long side wall and the short side wall overlap with the bottom part. Folding containers are known, and when assembled in a box shape, the long side wall or the short side wall is configured to be locked to each other by a locking device so as not to fall down toward the bottom. ing.

  By rotating the operation member of the locking device disposed on the long side wall toward the front, the rotation of the operation member is converted into a horizontal motion via an appropriate mechanism such as a link mechanism, thereby Move horizontally and insert the rod tip into the engaging part formed on the short side wall or eject it from the engaging part to lock the long side wall so that it does not fall down in the bottom direction. Or the folding container which made it cancel | release a lock | rock is disclosed by patent document 1 which is an earlier application of the present applicant.

  In the conventional folding container described above, the locking device disposed on the long side wall includes an operation member that is rotated forward, a cam member that is formed with cam grooves disposed at both ends of the operation member, After the operating member is rotated forward, the operating member is constituted by a spring member that returns the operating member to its original state. A driven short shaft of a pair of lock bars that reciprocate in the horizontal direction by operation of the operating member is inserted into the cam groove of the cam member. By operating the operating member, the lock bar is reciprocated in the horizontal direction, and the front end of the lock bar is engaged with the engaging recess formed on the short side wall, so that the long side wall and the short side wall are locked. The long side wall in the state of being assembled in a box shape is configured not to fall down in the bottom direction, and by operating the operation member, the tip of the lock bar is moved from the engagement recess formed in the short side wall. It is made to discharge | emit and the lock | rock state of a long side wall and a short side wall is cancelled | released, a long side wall falls in the bottom part direction, and it is comprised so that the folding container assembled in the box shape may be folded.

  In order to attach the operation member and the lock bar to the folding container as described above, first, a pair of lock bars are arranged on the long side wall, and then, in the cam groove of the cam portion arranged on the operation member, A lock member is attached to the long side wall so that the driven short shaft of the lock bar is inserted.

JP 2010-215238 A

  In the conventional folding container described above, in order to attach the operation member and the lock bar, first, a pair of lock bars is first arranged on the long side wall, and then, in the cam groove of the cam portion disposed on the operation member. The locking device is attached to the long side wall so that the driven short shaft of the lock bar is inserted.

  As described above, in the conventional folding container, the operation member is configured to be attached from the outside of the long side wall. Therefore, when the operation member is rotated downward, the operation member is detached from the long side wall. There was a problem.

  Further, when the operating member is rotated downward, the cam groove of the cam portion arranged in the operating member and the driven short shaft of the lock bar inserted in the cam groove are separated from each other, There was a problem that the rotational force of the part was not sufficiently transmitted to the lock bar and the workability of the unlocking work was poor.

  An object of the present invention is to solve the problems of the above-described conventional folding container.

  In order to achieve the above-mentioned object, the present invention first falls from the state assembled in a box shape to one opposite side wall that is first tilted in the bottom direction, and then is tilted in the bottom direction after the side wall. In the folding container having the other opposing side wall, first, first, a plate located in the central space of the one opposing side wall is first installed with the mounting short axis formed on the operating member constituting the locking device. The operating member is attached to one of the opposite side walls by fitting with a bearing member formed in the shape portion, and then the cam short shaft formed on the operating member is attached to the lock bar member constituting the locking device. It is configured to be inserted into a cam groove formed in the cam portion, and secondly, a cover member is attached to the central space of one opposing side wall where the operation member is disposed. is there.

  The present invention has, from the state assembled in a box shape, first one opposing side wall that is tilted toward the bottom, and then the other side wall that is tilted toward the bottom after the side wall. In the folding container, first of all, first, the mounting short shaft formed on the operating member constituting the locking device is changed to the bearing member formed on the plate-like portion located in the central space of one of the opposing side walls. By fitting, the operating member is attached to one opposite side wall, and then the cam short shaft formed on the operating member is inserted into the cam groove formed on the cam portion of the lock bar member constituting the locking device. Since it is configured to be inserted, even when a load is applied to the operation member so as to be detached from one of the opposite side walls when the operation member is rotated downward, the lock bar member attached later And the movement of withdrawal direction from the one opposing side wall is suppressed, it is possible to prevent separation of the operation member from one of opposing side walls.

  Since the cover member is attached to the central space of one opposing side wall where the operation member is disposed, when the operation main body constituting the operation member is rotated downward, the operation member It is possible to reliably prevent discharge from the central space of the side wall.

FIG. 1 is a perspective view of the folding container of the present invention assembled in a box shape. FIG. 2 is a partially enlarged perspective view of a short side wall constituting the folding container of the present invention. FIG. 3 is a perspective view of a long side wall constituting the folding container of the present invention. FIG. 4 is a partially enlarged perspective view of a long side wall constituting the folding container of the present invention. FIG. 5 is an exploded perspective view of the locking device constituting the folding container of the present invention. FIG. 6 is a perspective view of the operation member of the locking device constituting the folding container of the present invention. FIG. 7 is a perspective view of the lock bar member of the lock device constituting the folding container of the present invention. FIG. 8 is a partially enlarged perspective view showing a state in which the operation member of the locking device constituting the folding container of the present invention is attached to the long side wall. FIG. 9 is a partially enlarged perspective view showing a state in which the locking device constituting the folding container of the present invention is attached to the long side wall. FIG. 10 is a partially enlarged perspective view of a state in which the locking device constituting the folding container of the present invention is attached to the long side wall. FIG. 11 is a perspective view of a cover member constituting the folding container of the present invention. FIG. 12 is also a perspective view of a cover member constituting the folding container of the present invention. FIG. 13 is a partially enlarged perspective view showing a state in which the folding container locking device of the present invention is disposed. FIG. 14 is a partially enlarged perspective view of a state in which a cover member is attached to the long side wall of the folding container of the present invention.

  Hereinafter, examples of the present invention will be described. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

  As shown in FIG. 1, the folding container of the present invention includes a bottom 1, a long side wall 2 hinged to a long side bank 1 a facing the bottom 1, and a short side facing the bottom 1. It is comprised from the short side wall 3 hingedly connected to the bank part 1b, and the height of the long side bank part 1a is formed lower than the height of the short side bank part 1b in the present Example.

  From the state assembled in the box shape shown in FIG. 1, first, the long side wall 2 is brought down so as to overlap the bottom 1, and then the short side wall 3 is moved to the long side wall 2 superimposed on the bottom 1. As is well known, the folding container can be folded into a compact and low height by being tilted so as to overlap. From the folded state as described above, the short side wall 3 can be assembled substantially vertically, and then the long side wall 2 can be substantially vertical, as shown in FIG. It is configured as follows.

  Like the folding container described in Patent Document 1 described above, the short side wall 3 is formed with an upper end horizontal rib 3b at the upper end of the plate-like portion 3a of the short side wall 3, and with respect to the plate-like portion 3a. A substantially vertically long engagement member 3c is formed. Further, the engaging member 3c is formed with an engaging recess 3d into which the tip of the lock bar member is fitted, like the folding container described in Patent Document 1 described above. Also in this invention, since the structure of the short side wall 3 is substantially the same as the folding container described in Patent Document 1 described above, detailed description thereof is omitted.

  Next, the whole structure of the long side wall 2 is demonstrated using FIG.

  On the upper part of the outer wall surface of the plate-like part 2a of the long side wall 2 (the surface located outside the folding container when the folding container is assembled in a box shape), the upper part located near the upper end 2b of the long side wall 2 A horizontal rib 2c is formed, and an intermediate horizontal rib 2d is formed below the upper horizontal rib 2c at a predetermined interval from the upper horizontal rib 2c. The upper horizontal rib 2c and the intermediate horizontal rib 2d extend to the end vertical rib 2e formed along the vertical short side of the plate-like portion 2a.

  On the upper surface of the intermediate horizontal rib 2d, opposed central vertical ribs 2f are provided so as not to reach the upper horizontal rib 2c across the central portion of the intermediate horizontal rib 2d. A partition horizontal rib 2g extending to the end vertical rib 2e is formed in parallel with the intermediate horizontal rib 2d from the upper end of the center vertical rib 2f. The upper horizontal rib 2c, the partition horizontal rib 2g, and the end vertical rib 2e form a lock bar insertion space A1 into which a lock bar member constituting a lock device described later is inserted.

  Further, the upper horizontal rib 2c, the intermediate horizontal rib 2d, and the opposed central vertical rib 2f form a central space A2 in which an operation member or the like of a locking device described later is disposed.

  Furthermore, between the upper horizontal rib 2c and the partition horizontal rib 2g, an appropriate number of square cylindrical guide tubes 2h into which a lock bar member constituting a lock device described later is inserted are disposed, Like the folding container described in Patent Document 1 described above, the end vertical rib 2e is provided with a through hole 2e1 into which a lock bar member can be inserted.

  A pair of contact portions 2i are formed on the upper surface of the intermediate horizontal rib 2d located in the central space A2 at a predetermined interval. Also, a pair of spring member riding pieces 2j are formed near the center of the pair of contact portions 2i on the upper surface of the intermediate horizontal rib 2d, and the spring member riding pieces 2j are formed on the intermediate member horizontal rib 2d. An inclined end surface 2j1 inclined upward is formed from the tip toward the plate-like portion 2a. Furthermore, 2k is a pair of spring member regulating projections formed on the plate-like portion 2a located at the center of the spring member riding piece 2j. Furthermore, 2m is a guide piece that guides the lock bar member of the lock device that is suspended from the lower surface of the upper horizontal rib 2c.

  2n is a bearing member suspended from a plate-like portion 2a located in the vicinity of the opposed central vertical rib 2f, and the bearing member 2n holds the bearing fitted to the bearing member 2n in the vertical direction. It is formed from a bearing 2n1 arranged.

  Next, the locking device S composed of the operation member S1 and the pair of lock bar members S2 will be described with reference to FIGS.

  The operation member S1 constituting the lock device S is formed of an operation main body 10 and a substantially prismatic block member 11 connected to the operation main body 10 along the operation main body 10. An operation portion 10a having an upper surface inclined surface with which an operator's finger abuts when the operation member S1 is rotated downward is formed on the upper portion of the operation main body 10. The spring member 10b is suspended, and a pair of spring portions 10c extending from the central portion of the lower part of the operation main body 10 in a direction away from each other is suspended from the spring member 10b. In FIG. 6, a pair of downwardly inclined flat plate-like spring portions 10 c are configured to extend away from each other, but the spring portions 10 c extend in directions toward each other. It can also be configured as follows. Further, the pair of spring portions 10 c are extended from an intermediate portion of the support vertical piece 10 d that is suspended from the central portion of the lower portion of the operation main body 10.

  A pair of vertical side surfaces 11 a along the operation main body 10 of the block member 11 is provided with a short cam shaft 11 b perpendicular to the vertical side surface 11 a, and a vertical end surface 11 c of the block member 11 is vertically A mounting short shaft 11d perpendicular to the end face 11c is projected.

  The lock bar member S2 constituting the lock device S includes a lock bar portion 20 into which an end portion is inserted into an engagement recess 3d formed in the engagement member 3c of the short side wall 3, and one of the lock bar portions 20 And a cam portion 21 formed at the end of the. The cam portion 21 is formed with a cam groove 21 a inclined downward from above toward the lock bar portion 20, and a substantially vertical spring plate 21 b formed at the tip of the cam portion 21. Reference numeral 22 denotes a boundary inclined portion 22 formed at a boundary portion between the lock bar portion 20 and the cam portion 21 and inclined downward from the cam portion 21 toward the lock bar portion 20.

  The locking device S is configured so that the operating member S1 and the lock bar member S2 are connected by fitting the cam short shaft 11b formed in the block member 11 with the cam groove 21a formed in the cam portion 21. It is configured.

  When attaching the locking device S to the long side wall 2, first, the attachment short shaft 11 d protruding from the opposing vertical end surface 11 c of the block member 11 of the operation member S 1 is connected to each other formed on the long side wall 2. The operating member S1 is attached to the long side wall 2 as shown in FIG. 8 by fitting to the bearing 2n1 arranged in the vertical direction. Thereafter, the lock bar portion 20 of the lock bar member S2 is inserted into the lock bar insertion space A1 from the central space A2 side formed in the long side wall 2, and the operation member S1 of the lock device S located in the central space A2 is inserted. As shown in FIG. 9, the cam short shaft 11b formed on the lock bar member S2 is fitted into a cam groove 21a formed on the cam groove 21a, so that the lock device S is It is configured to be attached to the long side wall 2.

  When the locking device S is attached to the long side wall 2, the cam short shaft 11b formed on the operating member S1 is formed on the cam portion 21 of the lock bar member S2, as shown in FIG. The spring portion 10c, which is located at the upper end of the cam groove 21a and is suspended from the lower portion of the operation main body 10, has an inclined end surface of the spring member riding piece 2j formed on the intermediate horizontal rib 2d of the long side wall 2. 2j1 is located at the lower end of the operation body 10, and the tip of the spring portion 10c suspended from the lower part of the operation body 10 is in contact with or close to the contact portion 2i formed in the intermediate horizontal rib 2d of the long side wall 2. It is comprised so that it may be located. Furthermore, the lower end portion of the support vertical piece 10 d of the operation body 10 is configured to be positioned between a pair of spring member restricting projections 2 k formed on the plate-like portion 2 a of the long side wall 2. In addition, a pair of spring member control protrusion 2k formed in the plate-shaped part 2a of the long side wall 2 can also be abbreviate | omitted as needed.

  When the locking device S is attached to the long side wall 2, as disclosed in Patent Document 1, the distal end portion of the lock bar portion 20 of the lock bar member S2 is the short side wall shown in FIG. The long side wall 2 and the short side wall 3 are in a locked state so that the long side wall 2 does not fall in the direction of the bottom 1.

  In order to release the locked state between the long side wall 2 and the short side wall 3, the operation portion 10a of the operation main body 10 constituting the operation member S1 is rotated downward. When the operation main body 10 is rotated downward, the long side wall 2 and the short side wall 3 are in a locked state, and the cam body is located at the upper end portion of the cam groove 21a formed in the cam portion 21 of the lock bar member S2. The short axis 11b moves downward. When the cam short shaft 11b located at the upper end of the cam groove 21a moves downward, the lock bar portions 20 of the pair of lock bar members S2 move toward each other. The distal end portion of the lock bar portion 20 inserted into the engagement recess 3d formed in the engagement member 3c is discharged from the engagement recess 3d, and the long side wall 2 and the short side wall 3 are locked. The unlocked state is released, and the long side wall 2 is configured to fall in the direction of the bottom 1.

  Further, when the operation portion 10a of the operation main body 10 constituting the operation member S1 is rotated downward, the lock bar portions 20 of the pair of lock bar members S2 move in a direction approaching each other, and FIG. As shown, the pair of spring plates 21b formed on the cam portion 21 of the lock bar member S2 contacts the contact portion 2i formed on the intermediate horizontal rib 2d of the long side wall 2, and The spring plate 21b is elastically deformed in directions away from each other. In other words, the spring plate 21b is elastically deformed in a direction away from the operation member S1. In this way, by elastically deforming the spring plate 21b, when the operator releases his hand from the operation portion 10a of the operation body 10 constituting the operation member S1, a pair of spring plates 21b are elastically restored by the elastic restoring force. The lock bar portion 20 of the lock bar member S2 can surely and quickly return to the locked state.

  Further, when the operation portion 10a of the operation main body 10 constituting the operation member S1 is rotated downward, the spring portion 10c formed on the operation member S1 is formed on the intermediate horizontal rib 2d of the long side wall 2. When the operator releases his / her hand from the operation portion 10a of the operation main body 10 constituting the operation member S1 by moving from the lower end portion to the upper end portion of the inclined end surface 2j1 of the spring member riding piece 2j thus formed, the spring portion With the elastic restoring force of 10c, the lock bar portion 20 of the pair of lock bar members S2 can return more reliably and more quickly in the locked state.

  As described above, when the locking device S is attached to the long side wall 2, the operation member S1 is first attached, and then the lock bar member S2 is attached, so that the operation member S1 is rotated downward. Even when a load is applied to the operating member S1 so as to be detached from the long side wall 2 when moved, the movement of the separating direction from the long side wall 2 is suppressed by the lock bar member S2 attached later, The detachment of the operation member S1 from the long side wall 2 can be prevented.

  Next, the cover member C will be described with reference to FIGS.

  The cover member C has a substantially U-shaped front plate portion c1 composed of a horizontal portion c1a and opposing vertical plates c1b erected on both ends of the horizontal plate c1a. A concave portion c2 is formed by the vertical plate c1b. Further, from the upper end of the opposing vertical plate c1b to the back surface of the front plate portion c1 (the surface located on the plate-like portion 2a side of the long side wall 2 when the cover member C is attached to the long side wall 2) c1 ′ On the other hand, an upper end horizontal plate portion c3 extending substantially vertically is formed, and an appropriate number of upper locking projections c3a are formed on the back surface c1 ′ side of the front plate portion c1 on the upper surface of the upper end horizontal plate portion c3. ing.

  Further, a lower end horizontal plate portion c4 similar to the upper end horizontal plate portion c3 is formed from the lower end of the horizontal plate c1a of the front plate portion c1, and the back surface c1 ′ of the front plate portion c1 on the lower surface of the lower end horizontal plate portion c4. On the side, a lower locking projection c4a is formed. In the present embodiment, an example is shown in which the lower end horizontal plate portion c4 is formed at three positions of both ends and the center of the horizontal plate c1a, and the outer end of the horizontal plate c1a located at both ends is shown. Lower locking projections c4a are formed on the respective portions, and lower locking projections c4a (shown in the figure) are also provided on the back surface c1 ′ side of the front plate portion c1 on the lower surface of the lower horizontal plate portion c4 located at the center. Is not formed).

  Further, an outer vertical plate portion c5 substantially perpendicular to the vertical plate c1b is formed on the outer vertical edge of the vertical plate c1b via a predetermined gap c6, and the gap c6 faces the vertical plate c1b. A single fitting piece c7 is formed. In addition, c8 is an inner side vertical board part substantially perpendicular | vertical to the vertical board c1b at the inner side vertical edge of the vertical board c1b.

  The cover member C having the above-described configuration is fitted in the central space A2 in which the operation member S1 of the locking device S attached to the long side wall 2 is disposed so that the operation member S1 is positioned in the recess c2. However, when the operation member S1 is fitted in the central space A2, the upper locking projection c3a formed on the upper horizontal plate portion c3 of the cover member C is formed by the upper horizontal rib 2c of the long side wall 2. FIG. 4 shows a lower locking projection c4a formed on the lower surface of the lower horizontal plate portion c4 of the cover member C. The long side wall 2 is configured to be locked in a locking hole 2p formed in the intermediate horizontal rib 2d. Further, the fitting piece c7 formed on the cover member C is fitted between the guide piece 2m suspended from the lower surface of the upper horizontal rib 2c and the partition horizontal rib 2g as shown in FIG. It is comprised so that.

  As described above, the cover member C is attached to the central space A2 formed in the long side wall 2. With this configuration, the operation main body 10 constituting the operation member S1 is rotated downward. It is possible to reliably prevent the operating member S1 from being discharged from the central space A2 when moved.

A1 ... Lock bar insertion space A2 ... Central space C ...・ ・ ・ ・ ・ Cover member S ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Locking device S1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Operation member S2 ・ ・ ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Lock bar member 1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Bottom 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long side wall 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Short side wall

Claims (2)

From the assembled state into a box shape, the first, the one opposite the first side wall of which is brought down to the bottom direction, subsequent to said first side wall, after, and the other opposite second side wall which is brought down toward the bottom portion In a folding container having
The lock device includes a lock device that locks the first side wall and the second side wall, and the lock device is connected to the operation member, the operation member releasing the lock state by rotating the lower side outward. And a lock bar member
The operating member formed in a mounting minor axis, the Rukoto is fitted into a bearing member formed on the outer surface side of the plate-like portion located in the center space of the first side wall, the operating member, the first in a state attached to the first side wall, constituting the operating member cam minor axis formed is, with the locking bar member is mounted so as to be allowed into the cam groove formed in the cam portion of the lock bar member Folding container characterized by being made . The operating member is arranged, the central space of the first side wall, the folding container according to claim 1, characterized in that fitted with the cover member.

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