JP3075171U - Return box assembly fixture - Google Patents

Abstract

(57) [Summary] (with correction) [Problem] To easily assemble and fix the side wall of an assembling returnable box, and to prevent displacement and slippage of a higher-order box when stacking boxes, It is an object of the present invention to provide a returnable box assembling fixture capable of preventing collapse. A central connecting portion (3) having a projecting portion for preventing collapse of a load on a rear surface thereof is connected to both sides of the central connecting portion via hinges (4) so as to be freely bendable. A pair of holding portions 1 and 2 that are rotatable about hinges between a holding position facing in parallel and an opening position where the tip is open, and at least one pair of holding portions provided on the front surface of both holding portions. And fixing means comprising male and female cylindrical projections for holding and fixing the holding position of the holding portion when necessary. The center connecting portion 3 straddles the upper side opening side of the box and holds the overlapping joint portion of the side wall of the return box. To fix it.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an assembling type returnable box, particularly a returnable box assembling fixture which is effective for assembling and fixing a side wall of an assembling type returnable box made of cardboard.

[0002]

[Prior art]

 Conventionally, when assembling a returnable box, particularly when assembling the side wall portion, a joint allowance extending from one side wall of the box is bent at a right angle, and this is overlapped on an adjacent side wall, and the joined joint allowance and the side wall are assembled. It is fixed with a fixing jig. Various structures are known as an assembling / fixing jig for this returnable box. A typical example is a clip type. The clip-type assembling / fixing jig includes a holding portion for holding a joining portion and a joining portion of a side wall from both inside and outside of the box, and is attached to the joining portion from the upper opening side of the box and attaches the joining portion to the holding portion. It is a structure that is pinched and fixed by However, all of the conventional fixing devices for returnable boxes have only the function of fixing the side wall joints, and when the boxes are stacked, the upper boxes are displaced or slipped, so that the cargo collapses. Conventionally, there is no device having a function to prevent the occurrence of the problem.

[0003]

[Problems to be solved by the invention]

 The present invention has been made in view of the conventional circumstances described above, and the purpose thereof is to easily assemble and fix the side wall of an assembling returnable box and stack the boxes. It is an object of the present invention to provide an assembling type returnable box assembling jig which can also prevent displacement and slippage of a higher order box.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, the returnable box assembling and fixing jig is connected to the center connecting portion and to both sides of the center connecting portion via a hinge to bend independently. A pair of holding portions that are rotatable around hinges between a holding position where they are opposed to each other on the front side of the central connecting portion in parallel with each other, and an open position where the tip is open, and a pair of holding portions. At least one pair of fixing means for holding and fixing the holding position of the holding portion by mutual engagement, and a load collapse preventing convex portion protruding from the back surface of the central connecting portion is provided.

The fixing means is constituted by male and female cylindrical projections projecting from the holding portion so as to be fitted to face each other at the holding position of the holding portion. A locking claw that protrudes outward at least at a position closer to the front end than the middle in the axial direction can be provided on the outer peripheral surface of the female cylindrical protrusion of the fixing means.

It is preferable that a knob is integrally and continuously provided at the tip of the holding portion of the fixing means provided with the male-side cylindrical projection, as described in claim 3.

[0007]

[Functions and effects of the invention]

 In the assembling fixture for a returnable box according to claim 1 configured as described above, for example, the joining margins provided on a pair of opposing side walls are overlapped and joined to the adjacent side walls to thereby join the adjacent side walls. In the returnable box that connects the two parts, the center connecting part and the holding part are relatively rotated about the hinge so that the holding part takes the holding position, and the center connecting part straddles the open end of the upper surface of the box. A joining portion of the box side wall is held between the inside and the outside of the box, and the holding position is penetrated through the side wall and is fixed and fixed by a fixing means. Therefore, the side wall of the return box can be easily assembled and securely fixed. In addition, since the protrusion for preventing the collapse of the load is provided on the rear surface of the center connecting portion, the engagement hole or the slit corresponding to the protrusion for preventing the collapse of the load is provided on the bottom surface of the return box. Even when the boxes are stacked, the protrusions for preventing the collapse of the lower box and the engaging holes or slits of the upper box are engaged, so that the upper box can be prevented from shifting or slipping. Therefore, even if the return boxes are stacked in a plurality of stages, the collapse of the load can be prevented.

According to the present invention, when the fixing means is passed through the side wall of the pass-through box in order to mount the fixation jig, the outer surface of the female-side cylindrical projection is formed. The locking claws bite into the inner surface of the through hole opened at the joint of the side wall of the box. Thereby, even if the cardboard or the like forming the box is thick and has a strong repulsive force, the return of the cardboard or the like due to the repulsive force is prevented by the locking of the locking claws. This makes subsequent work easier and improves the workability of assembly.

According to the third aspect of the present invention, the knob is integrally provided at the tip of the holding portion having the male side cylindrical projection of the fixing means, so that it is mounted on the returnable box. Unlocking the fixing means and returning it to the open position side by releasing the holding part in the holding position can be achieved by pulling the above knob and pulling it to the open position side without using any special jigs or tools. Can be made easier. Therefore, it is easy to disassemble the returnable box after unpacking it for return.

[0010]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the figure, A is a fixing jig main body, and a is a base thereof. A pair of holding portions 1 and 2 and a center connecting portion 3 between the holding portions 1 and 2 for connecting the holding portions 1 and 2 are formed. Contains. The fixture body A is made of a flexible synthetic resin, and the holding portions 1 and 2 and the center connecting portion 3 are integrally formed. The holding portions 1 and 2 and the center connecting portion are attached to the back of the base. It is defined by hinges 4, 4 'formed by providing a V-shaped groove and reducing the base thickness of the groove portion. In the illustrated example, the base a is formed in a rectangular frame shape in which the inside is opened while leaving the peripheral portion as appropriate, in order to save material and reduce the weight. It does not need to be formed into a shape, and may be formed in a single plate shape.

The width between the hinges 4, 4 ′, that is, the width of the central connecting portion 3 defined by the hinges 4, 4 ′ is determined by the joint margins 14, 16, 15, 17 provided on the pair of opposed side walls 10, 11. Is overlapped on another pair of side walls 12 and 13 facing each other, and in the returnable box B connecting the adjacent side walls 10 to 13 with each other, the thickness of the above-mentioned connection margins 14 to 17 17 corresponds approximately to the sum of the thicknesses of the side walls 12 and 13 on which the superimposition is performed.

The center connecting portion 3 is provided with a protrusion 5 for preventing collapse of the load on the back surface thereof. The protrusion 5 for preventing the collapse of the load is unevenly provided on one of the holding portions 1 (hereinafter, referred to as a first holding portion) and forms a boundary between the first holding portion 1 and the center connecting portion 3. The base a extends along the entire length on the short side of the base a in the extension direction of the hinge 4 along the vicinity of the hinge 4. Further, the protrusion 5 for preventing the collapse of the load has a width substantially equal to a half of the width of the center connecting portion 3 and a height substantially corresponding to the thickness of the bottom plate of the returnable box B. It is formed in.

The holding portions 1, 2 and the center connecting portion 3 are relatively rotatable about hinges 4, 4 ′, and the holding portions 1, 2 are turned around the center connecting portion 3. As a result, the holding portions 1 and 2 can change their positions from the open position where the free end side tip is open to the holding position where the front ends of the central connecting portion 3 are opposed to each other in parallel or in the opposite direction. You can do it. The two holding parts 1 and 2 are provided with fixing means 6 which cooperate with each other to hold and fix the holding position, and the first holding part 1 is provided with a knob 7.

The fixing means 6 comprises male and female cylindrical projections 61 and 62 projecting from the front surfaces of the holding portions 1 and 2 so as to be fitted to face each other at the holding position of the holding portions 1 and 2. The male cylindrical protrusion 61 is provided on the first holding portion 1, and the female cylindrical protrusion 62 is provided on the other holding portion 2 (hereinafter, referred to as a second holding portion). The fixing means 6 is provided in the vicinity of the front ends of the first and second holding portions 1 and 2, one set at each end. The inner peripheral surface of the male-side cylindrical projection 61 and the outer peripheral surface of the female-side cylindrical projection 62 of the fixing means 6 are provided with a projection 63 and a concave portion 64 that engage with each other in a completely fitted state. ing. The protrusion 63 and the recess 64 may be provided with the protrusion 63 on one of the male and female cylindrical protrusions 61 and 62 and the recess 64 on the other. It is not necessary to provide the projection 63 on the projection 61 and the recess 64 on the female cylindrical projection 62.

The female cylindrical protrusion 62 is provided with a locking claw 65 projecting from the outer peripheral surface. The locking claw 65 is formed at a position slightly closer to the distal end than the axial center of the cylindrical projection 62 by extruding a part of the peripheral wall of the female-side cylindrical projection 62 to the outer surface side through a cutout 66. The protrusion height gradually increases toward the base side, that is, toward the rear end. The length of the female-side cylindrical projection 62 substantially corresponds to the width of the central connecting portion 3, and the male-side cylindrical projection 61 is formed to have a shorter length.

The knob 7 is used to pull out the male-side cylindrical projection 61 from the female-side cylindrical projection 62 to release the engagement between them, and to use the knob 7 on the side having the male-side cylindrical projection 61. The holding portion 1, in the illustrated example, extends from the tip of the first holding portion 1 in the direction in which the holding portion 1 extends, and the holding portion 1 is bent with respect to the holding portion 1 so as to be easily gripped. A thinned bridge portion 71 is provided at the connecting portion of the motor. Although the figure shows the ring-shaped knob 7, the knob 7 may have any shape as long as it is easy to pick.

Next, assembling and fixing of the returnable box B using such a returnable box assembling fixture will be described with reference to FIG. In FIG. 4, the returnable box B is formed by folding up the side walls 10, 11, 12, 13 provided on the four circumferences of the square bottom plate 8, respectively, and extending the joint allowances 14, 15 extending to both sides 10, 11 of the pair of opposed side walls. , 16, 17 are bent at a right angle, overlapped and fixed inside the adjacent side walls 12, 13, and the assembly and fixing jig is joined to the side walls 12, 13 by a bonding margin. It is used to fix 14,15,16,17 superposed parts.

As shown most clearly in FIG. 4, two through holes 20 for mounting jigs are provided on the side walls 12 and 13 where the joining margins 14, 15, 16 and 17 of the return box B are overlapped. Each of the joint margins 14, 16, 15, 17 that are opened and pierced from the left and right sides on the inner surfaces of the side walls 12, 13 also have the through holes 20 in the side walls 12, 13 in a state where they are superimposed on the side walls 12, 13. Are formed in the through holes 21, respectively. The distance between the two through holes 20 for mounting the jigs formed in the side walls 12 and 13 corresponds to the distance between the female cylindrical projections 62 of the assembly fixing jig body. The distance from the upper end of B to the through hole 21 corresponds to the distance from the hinges 4, 4 'of the assembling fixture to the female cylindrical projection 62. The diameter of the through holes 20 and 21 substantially corresponds to the outer diameter of the female-side cylindrical projection 62.

The assembling fixture inserts the female-side cylindrical projection 12 from the outside of the box into the through holes 20 and 21 to the root with the holding portions 1 and 2 in the open position. At this time, as shown in FIG. 6, the locking claws 65 on the outer surface of the female cylindrical projection 62 bite into the inner surface of the through hole 21 on the joining margins 15 to 17 side. Thus, for example, even if the corrugated cardboard or the like constituting the box B is thick and has a strong repulsive force, return of the bent portion due to the repulsive force is prevented, so that subsequent operations are facilitated.

Subsequently, the center connecting portion 3 and the holding portions 1 and 2 are relatively bent with the hinges 4 and 4 ′ as fulcrums, and the first and second holding portions 1 and 2 are connected to the box by the center connecting portion 3. B so as to be located inside and outside the box B over the open end of the upper surface of the box B, and the male-side cylindrical protrusion 61 is inserted into the female-side cylindrical protrusion 62 through the through holes 22 and 23 at the joint allowance. It is fitted and locked inside. As a result, the side walls 12, 13 of the returnable box B and the joining margins 14, 16, 15, 17 superimposed thereon are clamped from the inside and outside of the box B by the first and second clamping portions 1, 2 of the fixing jig. As a result, the joint between the two is fixed, and the assembled state of the returnable box B is maintained.

On the other hand, since the protrusion 5 for preventing the collapse of the load is protrudingly provided on the back surface of the center connecting portion 3 of the fixing jig main body A, the returnable box B is protruded further upward from the upper end thereof so that the load is extended. The protrusion 5 for preventing collapse is provided. Therefore, as clearly shown in FIG. 5, by providing the bottom plate 8 of the return box B with the engagement holes or slits 9 corresponding to the above-mentioned load-carrying prevention protrusions 5, the return boxes B are stacked. In this case, the upper returnable box B has an engagement hole or a slit 9 formed in the bottom plate 8 and the lower jig attached to the lower returnable box B has a load juncture-preventing projection 5. Engagement prevents slippage and slippage. Therefore, collapse of cargo is prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an assembling and fixing jig for a return box, showing an embodiment of the present invention.

FIG. 2 is a perspective view.

FIG. 3 is a perspective view showing a state in which one of the holding portions is rotated with respect to a center connecting portion.

FIG. 4 is a perspective view showing a state where the side wall of the return box is assembled and fixed using the assembly fixing jig of the present invention.

FIG. 5 is a perspective view of a returnable box assembled and fixed using the assembly and fixing jig of the present invention, showing a relationship between a lower returnable box and an upper returnable box when stacking returnable boxes;

FIG. 6 is an enlarged sectional view taken along line (a)-(a) of FIG. 5;

[Explanation of symbols]

 1: Holding portion 2: Holding portion 3: Central connecting portion 4: Hinge 4 ': Hinge 5: Convex portion for preventing collapse of load 6: Fixing means 7: Knob 61: Male side cylindrical projection 62: Female side cylindrical projection 65 : Locking claw

Claims (3)

[Utility model registration claims] 1. A central connecting portion, a clamping position which is provided on both sides of the central connecting portion via a hinge so as to be freely bendable, and is opposed to each other in parallel on the front side of the central connecting portion; A pair of holding portions rotatable about hinges with respect to the respective positions, at least one pair of holding portions provided on both holding portions, and holding means for holding and holding the holding position of the holding portion by mutual engagement; A jig for assembling a return box, wherein the jig is provided with a protrusion for preventing collapse of a load provided by protruding from a back surface of the connecting portion. 2. The fixing means comprises male and female cylindrical projections projecting from the holding portion so as to be fitted to face each other at the holding position of the holding portion. 2. The assembling and fixing jig for a return box according to claim 1, wherein the outer peripheral surface is provided with a locking claw projecting outward at least at a position closer to the front end than the middle in the axial direction. 3. The assembling and fixing jig for a return box according to claim 2, wherein the holding portion having the male side cylindrical projection of the fixing means has a knob integrally provided at the tip thereof.