JP3201243U - Assembled cardboard box - Google Patents

Abstract

The present invention provides an assembly type corrugated cardboard bag which can improve the appearance of the bag by eliminating the protrusions on the outside and the inner side of the end plate and can secure a large storage space in the bag. A corrugated cardboard trough 10 includes a bottom plate 12A made of reinforced corrugated cardboard, a side plate 12B, and a end plate 12C. At the front and rear ends of the bottom plate 12A and the side plate 12B, and the left and right ends of the end plate 12C, a bottom plate frame member 15A, a side plate frame member 15B, and a end plate frame member 15C made of wood or resin are respectively provided on the bottom plate 12A, the side plate 12B, and the end plate. It is attached so as to be connected on substantially the same plane as 12C. Engaging grooves 16b and engaging projections 16a are provided in the height direction on the end surfaces of the side plate frame member 15B and the end plate frame member 15C facing each other. When the end plate 12C is dropped into the front and rear end portions of the bottom plate 12A, the engagement protrusion 16b is slid from above into the engagement groove 16a, so that the development of the left and right side plates 12B is locked. [Selection] Figure 3

Description

  The present invention relates to an assembling cardboard box, and more particularly, to an assembling type cardboard box for folding and assembling a development sheet of reinforced cardboard in a box shape.

  Conventionally, a corrugated cardboard basket is known as an alternative to a wooden basket. Corrugated cardboard is made of reinforced corrugated board material for the main parts such as the bottom plate, side plate, and end plate, and is attracting attention as an environmentally friendly funeral because it is lighter and more combustible than wooden coffin.

  Among such corrugated cardboard folds, the unfolded sheet made of reinforced corrugated cardboard is bent into a box shape to form the bottom plate, left and right side plates, and the end plate, and the locking member is dropped above the end plate to lock the expansion of the left and right side plates. An assembly-type corrugated cardboard trough has been developed (see Patent Document 1).

  For example, as shown in FIG. 18, this type of corrugated cardboard basket 1 includes a box-shaped corrugated body 2 made of reinforced corrugated cardboard and a dropping lock member 3. The bag body 2 is formed by bending the bottom plate 2A, the side plates 2B, 2B and the end plate 2C substantially vertically along the V-groove formed in the development sheet of the reinforced corrugated cardboard. The end plate 2C has a bottom end portion 2Ca bent upward from the bottom plate 2A and side end portions 2Cb, 2Cb bent inward from the left and right side plates 2B, 2B. Vertical slits S1, S1 and S2 are provided. The locking member 3 is a member formed by bending a reinforced corrugated cardboard downward in a U-shape, and includes lock claws T1, T1, and T2 in the inner space.

When the corrugated board 1 is assembled, the side plates 2B and 2B are bent on the left and right sides of the bottom plate 2A, and the end plates 2C (the bottom end portion 2Ca and the side end portions 2Cb and 2Cb) are folded substantially vertically on the front and rear sides of the bottom plate 2A. In this state, as shown in FIG. 18, the locking member 3 is dropped from above the end plate 2C, and the lock claws T1, T1, and T2 are fitted into the vertical slits S1, S1, and S2. Thereby, the expansion | deployment to the outer side of the side plates 2B and 2B is locked.
In such an assembling type corrugated cardboard cage, it is possible to easily assemble the cage main body (box body) from the development sheet of the reinforced corrugated cardboard without using an adhesive.

JP 2008-272135 A

  However, in such a conventional assembling type corrugated cardboard box 1, the locking member 3 covers the end plate 2 </ b> C at the time of assembly. End up. For this reason, when compared with a general box-shaped bag, the shape becomes uncomfortable and the appearance looks worse. There is also a problem that the protrusion of the locking member generated inside the end plate narrows the storage space in the bag.

  The present invention has been made in view of such a situation, and it is possible to improve the appearance of the bag by eliminating the protrusions on the outside and inside of the end plate, and to secure a wide storage space in the bag. An object is to provide a possible corrugated corrugated board.

[First Device]
In order to solve the above-mentioned problem, the assembly type corrugated cardboard cage of the first device is
A bottom plate (12A) made of reinforced cardboard,
Left and right side plates (12B) made of reinforced corrugated cardboard connected to the left and right ends of the bottom plate (12A) via V-grooves and bent substantially vertically along these V-grooves;
A corrugated cardboard trough provided with a tapping plate (12C) that is dropped into front and rear ends of the bottom plate (12A) and locks the development of the left and right side plates (12B),
A bottom plate frame member (15A) made of wood or resin, respectively attached to the front and rear ends of the bottom plate (12A);
A side plate frame material (15B) made of wood or resin, respectively attached to the front and rear ends of the side plate (12B);
A tread board frame member (15C) made of wood or resin, which is respectively attached to the left and right ends of the tapping board (12C),
These bottom plate frame member (15A), side plate frame member (15B) and end plate frame member are substantially flush with the plate surfaces of the bottom plate (12A), the left and right side plates (12B) and the end plate (12C), respectively. In addition, a fixed piece (18) integrally extending from the bottom plate frame member (15A), the side plate frame member (15B) and the end plate frame member (12C) is connected to the bottom plate (12A) and the side plate (12B). And adhesively fixed to the reinforced corrugated board surface of the twelve board (12C),
in addition,
An engagement groove (16a) provided along each of the end faces facing the left and right of the side plate frame member (15B) along its length direction;
An engagement protrusion (16b) provided along the length direction on the left and right end faces of the end plate frame member (15C);
When the end plate (12C) is dropped into the front and rear ends of the bottom plate (12A), the engagement protrusion (16b) is slid from above into the engagement groove (16a), thereby The development of the side plate (12B) is locked.

According to such a configuration, the development of the side plate that is bent to the left and right of the bottom plate is locked by the engagement of the side plate frame member (engagement groove) and the end plate frame member (engagement protrusion) simultaneously with dropping of the end plate. This eliminates the need for a locking member that fits in front of and behind the end plate as in the conventional embodiment.
And, since these bottom plate frame material, side plate frame material and end plate frame material are arranged so as to be continuous on the same plane as each plate surface of the bottom plate, side plate and end plate, a step is produced by these frame members, The cross section of the reinforced cardboard is not visible.
As a result, it is possible to eliminate the occurrence of protrusions on the outside and inside of the end plate, and it is possible to finish the appearance of a simple ridge having a high-class feeling similar to a general box-shaped ridge. In addition, since no protrusion is generated on the inner side of the end plate, a large storage space for the bag can be secured.

Here, in the configuration of the present invention, each frame member made of wood or resin is integrally attached to the bottom plate, the side plate and the end plate made of reinforced corrugated cardboard by the fixing pieces. That is, the present invention is characterized in that the above-described problems are solved by effectively adding a frame material made of wood or resin to the end of each plate.
In the case of a corrugated board made of only reinforced corrugated cardboard, the strength of the material itself is insufficient compared to wood or resin, so that the tensile strength when the engaging grooves and the engaging protrusions are fitted is weakened. For this reason, both engagements are likely to be disengaged, and the durability of the heel may be reduced. On the other hand, in the configuration of the present invention, a frame member made of wood or resin is separately attached to the side plate and the end plate by the fixing piece, and the engagement groove and the engagement protrusion are provided on these frame members, so that the pulling is performed. The strength can be greatly increased.
Furthermore, since the bottom plate frame material, the side plate frame material, and the end plate frame material prevent the corners from being crushed and deformed, the effect of improving the durability of the corrugated cardboard can be obtained.

[Second Device]
In the configuration of the first device, when the side plates are bent on the left and right sides of the bottom plate, the left and right side plates may be slightly shifted back and forth due to the characteristics of the cardboard. When such a shift is remarkable, when the corrugated board is assembled, the engaging projections of the end plate frame material do not enter the engaging grooves of the side plate frame material well, which may hinder the assembling work.

  Accordingly, the assembly type corrugated cardboard cage of the second device has the structure of the first device, and the side plate (12B) is provided at each end of the bottom plate frame member (15A) and the side plate frame member (15B). ) Are bent together along the V-groove, and positioning means (19a, 19b) are provided to align the front and rear positions of the left and right side plates (12B).

  According to such a configuration, when the side plates are bent along the V groove on the left and right of the bottom plate, the front and rear positions of the left and right side plates are accurately positioned by the positioning means. Thereby, the position of the engagement groove of the side plate frame material is stabilized, the engagement projection of the end plate frame material can be easily fitted, and the assembly work of the corrugated board can be facilitated.

[Third Device]
In the configuration of the second device, when a positioning means is adopted at each end of the bottom plate frame material and the side plate frame material, the cardboard expands and contracts due to changes in temperature and humidity, even if the cardboard box is assembled according to dimensions, The length of the bottom plate and the side plate may slightly vary. Such expansion and contraction of the cardboard is assumed to affect each frame member made of wood or resin.
According to the prototypes of the inventors, it has been clarified that a gap due to the expansion and contraction of the corrugated board material is generated in the corner portion of the heel bottom, that is, the joint portion (each end portion) of the bottom plate frame material and the side plate frame material. Such a defect deteriorates the appearance of wrinkles and can cause a decrease in strength.

Therefore, the assembly type corrugated cardboard cage of the third device has the structure of the second device,
The positioning means comprises:
A mortise groove (19a) provided to open downward and laterally at the lower end of the side plate frame member (15B);
A flat tenon piece (19b) provided on the left and right ends of the bottom plate frame member (15A) outwardly to the left and right;
When the side plate (12B) is bent along the V-groove at the left and right of the bottom plate (12A), the tenon piece (19b) is slidably fitted into the tenon groove (19a).

According to such a configuration, when the side plate is bent along the V-groove on the left and right sides of the bottom plate, the tenon groove of the side plate frame member and the tenon piece of the bottom plate frame member serve as positioning means to align the position of the side plate back and forth. Thereby, the engagement position of the engagement groove and the engagement protrusion is stabilized, and the assembling work of the corrugated board can be facilitated.
When a shift occurs in the positions of the side plate frame member and the bottom plate frame member due to the expansion and contraction of the corrugated board material, such a shift is absorbed between the tenon pieces and the tenon grooves. That is, since the tenon pieces are appropriately moved within the tenon groove, it is possible to prevent a gap from being generated at the joining portion (each end portion) of both frame members. Thereby, even if temperature and humidity change, the finish of the appearance of the corrugated board can be kept good.

[First to third devices]
The first and second devices can be applied to a corrugated cardboard bag that folds a development sheet made of reinforced corrugated cardboard into a box shape and assembles the bag main body. Usually, it is assumed that the present invention is applied to the box-shaped bag body out of the cardboard bag's bag body and lid. However, if the lid is box-shaped, use an adhesive or the like. Thus, the present invention can be applied to the lid of the cardboard box.
There are no particular limitations on the use (such as for humans and pets) and the type (such as sleeping robes and seats) of cardboard baskets.

The positional relationship between the engagement groove and the engagement protrusion in the first device is not necessarily limited to the above, and the engagement groove may be provided in the face plate frame material and the engagement protrusion may be provided in the side plate frame material. Even in this case, the same operation and effect as the first device can be obtained.
The positional relationship between the tenon groove and the tenon piece in the third device is not necessarily limited to the above, and the tenon groove may be provided on the bottom plate frame member and the tenon piece may be provided on the side plate frame member. Even in this case, the same operation and effect as the third device can be obtained.
The end plate is preferably formed of reinforced corrugated cardboard, but the whole including the end plate and the end plate frame material may be formed of wood or resin.
In the first to third devices, when each frame member is formed of “wood”, the type is not limited, but it is desirable to use it as a solid material, for example, paulownia, hinoki. , Japanese cedar, Japanese cedar, Japanese fir and the like can be employed. Of course, it is also possible to use a wood material including a laminated material or a compression molding material (particle board or the like). When each frame material is formed of “resin”, it is desirable that the frame material has the same hardness and combustibility as the above wood.

In addition, the 1st-3rd invention may be applied independently, and can also apply combining these ideas as needed. Further, the first and second devices may be combined with other devices described in this specification.

1 is a perspective view showing an assembly type cardboard box according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line [II]-[II] in FIG. 1 and an enlarged cross-sectional view of the R1 portion, showing the corrugated board bag. It is a disassembled perspective view which shows the end plate part of the corrugated board bag. The corrugated cardboard cage | basket is shown, (A) is the front view seen from the end face direction, (B) is the [B]-[B] line | wire partial sectional drawing. FIG. 5 is a partial enlarged cross-sectional view of FIG. The corrugated board is shown as a plan view, (A) is a plan view, (B) is a front view, (C) is a cross-sectional view taken along line [C]-[C], and (D) is a rear view. It is the top view which shows the expansion | deployment sheet | seat for assembling the bag main body (box body) of the corrugated board bag, and the end elevation of a broken line direction. The joint part of the bottom board frame material and side board frame material of the same corrugated board cage | basket is shown, (A) is a partial expansion perspective view before an assembly, (B) is the partial expansion perspective view after an assembly. It is a schematic diagram for demonstrating the effect | action of the joint part of the baseplate frame material and side plate frame material of the corrugated board bag. It is a partial expansion perspective view which shows the modification of the joint part of the baseplate frame material and side plate frame material of the same corrugated board bag. FIG. 3 is a cross-sectional view corresponding to FIG. 2 and an enlarged cross-sectional view of an R2 portion showing an assembly type corrugated cardboard cage of a second embodiment. The assembly type corrugated cardboard cage | basket of 2nd Embodiment is shown, (A) is a front view corresponding to FIG. 4, (B) is a [B]-[B] line | wire partial sectional view. It is a disassembled perspective view which shows the end plate part of the assembly-type cardboard box of 3rd Embodiment. It is the elements on larger scale which show the modification of the joint part of the bottom board frame material and side board frame material of the same corrugated board bag. It is sectional drawing which shows the modification (1) of the assembly-type cardboard cage | basket of 1st-3rd embodiment. It is sectional drawing which shows the modification (2) of the assembly-type cardboard box of 1st-3rd embodiment. It is sectional drawing which shows the modification (3) of the assembly-type cardboard cage | basket of 1st-3rd embodiment. It is a disassembled perspective view which shows the end plate part of the assembly-type cardboard box of the conventional form.

Embodiments of the present invention will be described below with reference to the drawings.
The assembly type cardboard box of this embodiment is a combination of a bag body and a lid, and the present invention is applied to a box-shaped bag body.

[First Embodiment]
As shown in FIG. 1, the corrugated cardboard basket 10 includes a bag body 12 and a lid 13. A lid 13 is placed on the upper side of the bag body 12 so as to be freely opened and closed. A window frame 14 is provided at a position near the lid 13. A kannon door is attached to the window frame 14 so that the inside of the bag can be viewed by opening these doors.
The dimensions of the corrugated cardboard basket 10 are, for example, about 170 to 200 cm in length, about 50 to 70 cm in width, and about 40 to 50 cm in height including the bag main body 12 and the lid 13.

The main parts of the bag body 12 and the lid 13 are formed of reinforced cardboard. In the present embodiment, a double-layer reinforced cardboard (for example, manufactured by Triwall) having a thickness of about 10 to 20 mm is used as the reinforced cardboard. This reinforced corrugated cardboard has two layers of corrugated plates r1 and r2 stacked between two thick plates (liners) Rb and Rf through a partition plate r3, as shown in the R1 partial enlarged view of FIG. It has excellent pressure resistance and water resistance.
In order to form the V-groove for bending in the reinforced corrugated cardboard, the other layers are cut using a rotary blade or the like while leaving one of the thick plates Rf and Rb. When folding the reinforced cardboard, only the remaining thick plate (liner) is folded and the inclined groove surfaces of the V-groove are brought into close contact with each other. If V-groove processing is performed so that the groove angle of the V-groove is approximately 90 °, adjacent plates bend substantially vertically. As another V-groove formation method, the corrugated board may be compressed into a V-shaped cross section with a press machine or the like.

  A decorative sheet such as a cloth or a film is affixed to the surface of the cardboard box 10 as necessary. By applying such a cosmetic finish, the texture of the corrugated cardboard 10 is enhanced.

As shown in FIG. 1, the bag main body 12 includes a bottom plate 12A, left and right side plates 12B and 12B, and front and rear end plates 12C and 12C. The side plates 12B and 12B are vertically raised on the left and right sides of the rectangular bottom plate 12A, and the end plate 12C is substantially vertically raised on the front and rear.
As will be described later, the bottom plate 12A and the side plates 12B and 12B are formed by bending a single unfolded sheet made of reinforced cardboard into an upward U-shape. The end plate 12C is dropped between the side plates 12B and 12B, and is formed by cutting a reinforcing corrugated cardboard separate from the development sheet into a rectangle.

  As shown in FIG. 1, a folded plate 12 </ b> D is provided at the opening end of the bag main body 12. The folded plate 12D is formed by folding the end portions of the reinforced corrugated cardboard into two rows of V-grooves, and is formed inside the upper end portions of the side plates 12B and 12B and the end plates 12C and 12C. These folded plates 12D increase the strength of the open end of the heel body 12. Moreover, since the area of the upper end surface of the bag main body 12 is ensured more than the thickness of one reinforced corrugated cardboard, a sense of stability when the lid 13 is placed increases.

  A lining plate 12E is provided on the inner side of the heel body 12 and at the four corners thereof, and the front and rear ends of the heel bottom (see FIGS. 3 to 6). These lining plates 12E are formed by cutting reinforced corrugated cardboard on the side of a vertically long rectangle, and are attached to the end portions of the bottom plate 12A, the side plates 12B and 12B, and the end plates 12C and 12C with an adhesive. The lining plate 12E increases the thickness of the end portions of the bottom plate 12A, the side plates 12B and 12B, and the end plates 12C and 12C, thereby increasing the strength of the heel body 12.

As shown in FIGS. 1 and 3, a bottom plate frame member 15A is attached to each of the front and rear ends of the bottom plate 12A. Similarly, a side plate frame member 15B is attached to each of the front and rear ends of the side plates 12B and 12B. These frame members are formed by processing wooden squares, and are connected to the front and rear end surfaces of the bottom plate 12A and the side plates 12B and 12B without any step. In other words, each plate of reinforced corrugated cardboard and each frame member of wood are integrated into a development sheet P (see FIG. 7).
On the other hand, to the left and right ends of the end plate 12C, a end plate frame member 15C made of a wooden square is attached. The end plate frame material 15C is connected to the left and right end faces of the end plate 12C without a step. The reinforced corrugated cardboard 12C and the timber faceplate frame material 15C are integrated into a single plate shape (see FIG. 6).

  Engaging grooves 16a and engaging protrusions 16b are formed along the height direction on the end faces of the side plate frame member 15B and the end plate frame member 15C facing each other (see FIGS. 3 and 4). That is, the engaging grooves 16a and 16a are connected in the height direction to the end faces facing the left and right sides of the side plate frame members 15B and 15B, and the right and left end faces of the end plate frame member 15C can be fitted into the engaging grooves 16a and 16a. The mating protrusions 16b and 16b are continuous in the height direction.

  The engaging groove 16a is formed in a dovetail shape, and the width of the groove bottom is wider than the width of the opening. The engagement protrusion 16b is a convex line that has a substantially trapezoidal cross section, and the width of the base is narrower than the width of the tip. When the engaging protrusion 16b is slid and inserted from the upper end of the engaging groove 16a, the engaging protrusion 16b fits almost exactly in the engaging groove 16a. That is, the engagement groove 16a and the engagement protrusion 16b can move in the groove length direction but cannot move in the groove depth direction.

  Dowel holes 17a and dowels 17b are provided on the end faces of the bottom plate frame member 15A and the side plate frame member 15B facing each other (see FIGS. 3 and 6). The dowel holes 17a are arranged at two places on the upper and lower surfaces of the bottom plate frame member 15A. The dowels 17b are arranged at two places on the left and right sides of the lower end surface of the side plate 12B. When the end plate 12C is dropped between the side plates 12B and 12B, the positions of the dowel hole 17a and the dowel 17b coincide.

On the side plate frame member 15B, the end plate frame member 15C, and the bottom plate frame member 15A, a fixing piece 18 is integrally extended at a portion that does not appear on the outer appearance of the bag main body 1 (see FIGS. 5 and 6). The fixed piece 18 is continuous in the length direction of each frame member while maintaining a uniform thickness and width.
As shown in FIG. 5, in the attachment part of the side plate 12B and the side plate frame member 15B, the upper end portion of the fixed piece 18 is covered with the folded plate 12D of the side plate 12B, and the remaining portion of the fixed piece 18 is covered with the lining plate 12E of the side plate 12B. Part is covered. On the front end side of the fixed piece 18, an intermediate plate 12F of reinforced corrugated cardboard that fills the gap between the side plate 12B and its lining plate 12E is fixed.
Similarly, in the attachment part of the end plate 12C and the end plate frame member 15C, the upper end portion of the fixed piece 18 is covered by the folded plate 12D of the end plate 12C, and the remaining part of the fixed piece 18 is covered by the lining plate 12E of the end plate 12C. (See FIG. 6). A reinforcing corrugated intermediate plate 12F that fills the gap between the end plate 12C and the lining plate 12E is fixed to the distal end side of the fixed piece 18.

At the attachment portion between the bottom plate 12A and the bottom plate frame member 15A, the upper surface of the fixing piece 18 (not shown) of the bottom plate frame member 15A is covered with the lining plate 12E of the bottom plate 12A. A reinforcing corrugated intermediate plate 12F (not shown) that fills the gap between the bottom plate 12A and the lining plate 12E is fixed to the distal end side of the fixed piece 18.
With the fixing pieces 18 covered with the reinforcing cardboard plates in this way, the contact surfaces of each other are bonded and fixed, so that the reinforcing cardboard plates and the wood frame members are not separated from each other. ing.

Next, a developed sheet for assembling the bottom plate 12A and the side plates 12B and 12B is shown in FIG.
As shown in FIG. 7, the development sheet P is provided with side plates 12B and 12B on the left and right sides of the rectangular bottom plate 12A. At the boundary between the bottom plate 12A and the side plates 12B and 12B, a V-groove v having a substantially 90-degree cross section continues on a straight line. The unfolding sheet P is bent substantially vertically along these V grooves v. As described above, the bottom plate frame member 15A and the side plate frame member 15B are fixed to the front and rear ends (upper and lower ends of FIG. 7) of the bottom plate 12A and the side plates 12B and 12B via the fixing pieces 18.

  A triple-joint structure (positioning means) is employed at the end portions of the bottom plate frame member 15A and the side plate frame member 15B facing each other (the portion corresponding to the bottom corner portion of the flange main body 12) (see FIG. 8). ). That is, in this embodiment, the tenon groove 19a is formed at the end of the side plate frame member 15B, and the tenon piece 19b that fits into the tenon groove 19a is formed at the end of the bottom plate frame member 15A. In the unfolded state of the unfolded sheet P, the tenon grooves 19a and the tenon pieces 19b are both on the substantially middle boundary line of the V groove v. When the side plates 12B and 12B are bent along the V-groove v on the left and right sides of the bottom plate 12A, the tenon pieces 19b are slidably fitted into the tenon grooves 19a to fill the gaps between the bottom plate frame member 15A and the side plate frame member 15B. When the side plates 12B and 12B are returned to the original unfolded state, the tenon piece 19b is detached from the tenon groove 19a with the movement of the side plate frame member 15B.

  When assembling the bag main body 12 from the unfolded sheet P, first, the side plates 12B and 12B are bent along the V-groove v in an upward U-shape on the left and right sides of the bottom plate 12A. At this time, as described above, the tenon piece 19b of the bottom plate frame member 15A fits into the tenon groove 19a of the side plate frame member 15B. Thus, the tenon piece 19b fits into the tenon groove 19a, whereby the bottom plate 12A and the side plates 12B and 12B are positioned in the front-rear direction. That is, when the tenon piece 19b is guided in the tenon groove 19a, the side plates 12B and 12B can be raised upright and left of the bottom plate 12A while maintaining the correct position.

  In a state where the spread sheet P bent upward is temporarily fixed, as shown in FIG. 3, the end plate 12C is dropped into the front and rear ends of the bottom plate 12A. At this time, the engagement protrusions 16b at both ends of the end plate frame member 15C are slid from above into the engagement grooves 16a of the side plate frame member 15B facing left and right to lock the expansion of the side plates 12B and 12B to the outside. At the same time, the dowel holes 17a and 17a of the bottom plate frame member 15A are fitted into the dowels 17b and 17b of the side plates 12B and 12B to position the end plate 12C in the front-rear direction with respect to the bottom plate 12A.

After assembling the box-shaped bag main body 12 with the unfolding sheet P and the two end plates 12C in this manner, as shown in FIG. Thus, the assembly type cardboard box 10 is obtained.
Since the assembling operation of the bag main body 12 can be performed without using an adhesive, the assembling operation can be made extremely short.
Further, even after the heel body 12 is once assembled, it can be returned to its original unfolded state by pulling the end plate 12C upward, so that the assembly and deployment work of the heel body 12 is repeated as many times as necessary. It is possible to improve usability.

  According to the assembly type corrugated cardboard trough 10 of the present embodiment, the bottom plate frame member 15A, the side plate frame member 15B, and the end plate frame member 15C are substantially flush with the plate surfaces of the bottom plate 12A, the side plates 12B and 12B, and the end plates 12C and 12C. Therefore, the frame material does not cause a step, and the cross section of the reinforced cardboard is not visible. As a result, it is possible to eliminate the occurrence of protrusions on the outside and inside of the end plates 12C and 12C, and it is possible to finish the appearance of a simple ridge having a high-class feeling similar to a general box-shaped ridge. In addition, since no protrusion is generated inside the end plates 12C, 12C, a large storage space for the bag can be secured.

  If the engagement grooves 16a and the engagement protrusions 16b are formed on the reinforced cardboard, there is a possibility that the engagement strength cannot be sufficiently maintained. Since the frame material is employed and the engagement grooves 16a and the engagement protrusions 16b are formed in the frame material, the engagement strength can be sufficiently maintained. By using wood for the frame material of the engaging portion, the amount of wood used is minimized, and the advantage as a corrugated cardboard basket is not impaired.

In addition, in the assembly type corrugated cardboard cage 10 of the present embodiment, the mortise groove 19a and the mortise piece 19b are adopted at the joint portion of the side plate frame material 15B and the bottom plate frame material 15A. And the side plates 12B, 12B can be easily and accurately positioned in the front-rear direction. As a result, it is possible to improve the dimensional accuracy of the corrugated board bag.
Further, even if a positional deviation occurs between the bottom plate 12A and the side plate 12B due to the characteristics of the corrugated cardboard material, as shown in FIG. 9, the tenon piece 19b slides in the tenon groove 19a, thereby causing a load due to the deviation of each frame material. The problem that a gap is generated between the two frame members can be prevented.

In addition, about the shape of the tenon groove | channel 19a and the tenon piece 19b, you may change from the form of FIG. 8 to the form shown to FIG. 10 (A) or (B).
In the form shown in FIG. 10A, the positional relationship between the tenon groove 19a and the tenon piece 19b is reversed from the form shown in FIG. That is, the tenon groove 19a is arranged on the side plate frame member 15B, and the tenon piece 19b is arranged on the bottom plate frame member 15A. Even with such a configuration, it is possible to obtain the same operations and effects as in the present embodiment.
In the form shown in FIG. 10B, mortise grooves 19a and mortise pieces 19b are provided in both the side plate frame material 15B and the bottom plate frame material 15A, respectively. According to such a structure, since the shape of the joining part (the tenon groove 19a and the tenon piece 19b) of the side plate frame member 15B and the bottom plate frame member 15A becomes the same, these processes are facilitated.
It is also possible to make the joint portion of the side plate frame member 15B and the bottom plate frame member 15A mesh with each other in a comb blade shape.

Next, a second embodiment is shown in FIGS.
In the second embodiment, a three-layer reinforced corrugated cardboard is used instead of the two-layer reinforced corrugated cardboard in the main part of the corrugated cardboard cage.
As shown in FIGS. 11 and 12, the assembling type corrugated cardboard of the second embodiment is formed of three-layer corrugated cardboard (for example, manufactured by Triwall) in which the main parts of the corrugated body 12 and the lid 13 are about 10 to 30 mm thick. Is done. As shown in the R2 partial enlarged view of FIG. 10, the three-layer reinforced corrugated cardboard has three layers of corrugated plates r4, r5, r6 between two thick plates (liners) Rb, Rf. It has a superior pressure resistance and water resistance. Adjacent plate materials can be bent by performing V-groove processing on the plate surface in the same manner as the double-layer reinforced cardboard.

As shown in FIG. 12, the side plate frame material 15B and the end plate frame material 15C are set to a thickness that is approximately twice the thickness of the three-layer reinforced corrugated cardboard. The fixing pieces 18 of the side plate frame member 15B and the end plate frame member 15C are fixed to the plate surfaces of the side plate 12B and the end plate 12C with an adhesive inside the bag main body 12.
The bottom plate frame material 15A is also set to a thickness approximately twice the thickness of the three-layer reinforced cardboard, and the fixing piece 18 is fixed to the plate surface of the bottom plate 12A with an adhesive (not shown).
In the above embodiment, the fixing piece 18 is exposed inside the bag main body 12, but a separate cardboard (lining plate) or cloth may be covered so as to hide the fixing piece 18.

  According to the structure of 2nd Embodiment, the thickness of each board | plate material can be enlarged and the intensity | strength of a corrugated paper surface can be raised by employ | adopting a three-layer reinforcement | strengthening corrugated board for the bag main body 12 and the lid | cover 13. FIG. Thereby, it can finish into the assembly-type corrugated cardboard basket 20 excellent in durability.

A third embodiment is shown in FIG.
The corrugated cardboard trough 30 of the third embodiment is such that the bottom plate frame material 15A, the side plate frame material 15B, and the joint portion are inclined surfaces.
The left and right side end portions 31A of the bottom plate frame member 15A and the lower end portions 31B of the side plate frame member 15B are respectively formed with inclined surfaces cut at approximately 45 °. These inclined surfaces are joined together, and the bottom plate frame member 15A and the side plate frame member 15B are joined together in a substantially vertical positional relationship.

  An adhesive sheet 32 made of an elastic double-sided tape or the like is attached to a joint portion between the bottom plate frame member 15A and the side plate frame member 15B. The pressure-sensitive adhesive sheet 32 suppresses a shift in the front-rear direction between the bottom plate 12A and the side plates 12B and 12B, and when a gap due to a position shift due to cardboard expansion / contraction occurs between the bottom plate frame member 15A and the side plate frame member 15B. The gap is hidden by its elasticity.

  According to the configuration of the third embodiment, since the shape of the joint portion of the bottom plate frame member 15A and the side plate frame member 15B becomes simple, the burden of the processing work can be reduced. For example, it is possible to cut a single frame member at an angle of approximately 45 ° to simultaneously form the inclined surfaces of the bottom plate frame member 15A and the side plate frame member 15B. Thereby, the manufacturing cost of the assembly-type cardboard box 30 can be suppressed.

It should be noted that positioning means (see FIG. 14) for preventing these positional deviations may be provided on the inclined surfaces of the side end portion 31A of the bottom plate frame member 15A and the lower end portion 31B of the side plate frame member 15B. .
For example, in the form shown in FIG. 14A, dowel holes 33a and dowels 33b are provided at substantially the center of the inclined surfaces of the side end portion 31A and the lower end portion 31B. In this case, it is possible to prevent the positional deviation between the side end portion 31A and the lower end portion 31B by these fittings.
In the form shown in FIG. 14B, engaging claws 34A and 34B are provided in the middle of the inclined surfaces of the side end 31A and the lower end 31B. In this case, these engaging claws 34A and 34B can mesh with each other to prevent the positional deviation between the side end 31A and the lower end 31B.

In the form shown in FIG. 14C, a through hole 35a and a through dowel 35b are provided on the inclined surfaces of the side end portion 31A and the lower end portion 31B. In this case, after aligning the inclined surfaces of the side end portion 31A and the lower end portion 31B, by inserting the through dowel 35b into the through hole 35a, it is possible to prevent the positional deviation between the side end portion 31A and the lower end portion 31B. .
Thus, by preventing the positional deviation of the inclined surfaces of the side end portion 31A and the lower end portion 31B, the assembling work of the corrugated cardboard cage 30 can be facilitated, and the finished dimensional accuracy can be improved.

As mentioned above, although 1st-3rd embodiment was described, embodiment of this invention is not restricted to these, You may accompany various deformation | transformation.
For example, in the first to third embodiments, wood is used as the material for the bottom plate frame material 15A, the side plate frame material 15B, and the end plate frame material 15C, but resin may be used for these frame materials. The resin to be employed is not particularly limited, but it is desirable that the resin be burned out in an appropriate time without affecting the furnace temperature during cremation.
As the material of the end plate 12C, it is desirable to use reinforced corrugated cardboard, but materials other than reinforced corrugated cardboard, such as wood or resin, can also be used.
In the first to third embodiments, the end plate 12C is dropped between the left and right side plates 12B, 12B, but the side plate 12B is arranged by arranging the positional relationship between the engagement groove 16a and the engagement protrusion 16b in the front-rear direction. , 12B may be dropped into a position adjacent to the front and back of 12B to lock the development of the side plates 12B, 12B.

You may employ | adopt a resin component in the part containing the engagement protrusion 16b among the side board frame material 15B or the end plate frame material 15C. In the modification (1) shown in FIG. 15, dovetail grooves having the same shape as the engagement grooves 19a of the side plate frame member 15B are provided in the end plate frame member 15C, and the resin component 41 including the engagement protrusions 19b in the dovetail grooves is high. It is inserted in the direction.
By employing resin parts in this way, the engagement protrusions 19b can be mass-produced with accurate dimensions and at low cost by resin molding. Further, since the groove shapes (engagement grooves 19a) of the side plate frame member 15B and the end plate frame member 15C are the same, it is possible to efficiently process these frame members using a common machine.

The positional relationship between the engagement groove 16a and the engagement protrusion 16b may be reversed. In the modified example (2) shown in FIG. 16A, an engagement groove 43a is provided on the end face of the end plate frame member 15C, and an engagement protrusion 43b is provided on the end face of the side plate frame member 15B. Even with such a configuration, the same effects as those of the first to third embodiments can be obtained.
When the positional relationship between the engagement groove 16a and the engagement protrusion 16b is reversed, as shown in FIGS. 16B and 16C, a blindfold 43c that covers the groove space is provided at the upper end of the engagement groove 43a. May be. The front end of the blindfold 43c is cut along the boundary between the upper surfaces of the side plate frame member 15B and the end plate frame member 15C. According to such a configuration, the engagement portions of the engagement grooves 43a and the engagement protrusions 43b can be made invisible and the finish can be further improved.

  As shown in FIG. 17, a structure may be employed in which cuts are made at appropriate positions on the left and right side plates 12B, 12B and folded on the back side of the bottom plate 12A. For example, in the modified example (3) shown in FIG. 17, the right side plate 12B is provided with a notch Z while maintaining a distance corresponding to the thickness of the reinforced cardboard from the plate surface of the bottom plate 12A. This cut Z is formed by cutting other layers while leaving only the outer layer (liner) of the reinforced cardboard.

  According to such a configuration, when the unfolded sheet P is stored and transported, as shown by the arrow in FIG. 17, the side plate 12B on the left side in FIG. The right side plate 12B is folded back to the back side of the bottom plate 12A at a position shifted by the notch Z by the thickness of the reinforced cardboard. Then, the left and right side plates 12B, 12B are alternately folded and overlapped below the bottom plate 12A. As a result, within the range of the width of the bottom plate 12A, the unfolded sheet P can be folded and compactly packed with a thickness corresponding to three reinforced cardboards, and the workability of storage and transportation can be improved.

10. · Assembly type corrugated cardboard 12 ·· Body body 13 ·· Cover 14 ·· Window frame 12A ·· Bottom plate 12B ·· Side plate 12C ·· Tail plate 12D ·· Folding plate 12E ·· Inner plate 12F ·· Intermediate plate 15A ·・ Bottom plate frame material 15B ・ ・ Side plate frame material 15C ・ ・ Tube plate frame material 16a ・ ・ Engagement groove 16b ・ ・ Engagement projection 17a ・ ・ Dowel hole 17b ・ ・ Dowel 18 ・ ・ Fixing piece 19a ・ ・ Mortise groove (positioning means) ) 19b .. Mortise piece (positioning means)
P ・ ・ Development sheet v ・ ・ V groove

Claims (5)

A bottom plate (12A) made of reinforced cardboard,
Left and right side plates (12B) made of reinforced corrugated cardboard connected to the left and right ends of the bottom plate (12A) via V-grooves and bent substantially vertically along these V-grooves;
A corrugated cardboard trough provided with a tapping plate (12C) that is dropped into front and rear ends of the bottom plate (12A) and locks the development of the left and right side plates (12B),
A bottom plate frame member (15A) made of wood or resin, respectively attached to the front and rear ends of the bottom plate (12A);
A side plate frame material (15B) made of wood or resin, respectively attached to the front and rear ends of the side plate (12B);
A tread board frame member (15C) made of wood or resin, which is respectively attached to the left and right ends of the tapping board (12C),
These bottom plate frame member (15A), side plate frame member (15B) and end plate frame member are substantially flush with the plate surfaces of the bottom plate (12A), the left and right side plates (12B) and the end plate (12C), respectively. In addition, a fixed piece (18) integrally extending from the bottom plate frame member (15A), the side plate frame member (15B) and the end plate frame member (12C) is connected to the bottom plate (12A) and the side plate (12B). And adhesively fixed to the reinforced corrugated board surface of the twelve board (12C),
in addition,
An engagement groove (16a) provided along each of the end faces facing the left and right of the side plate frame member (15B) along its length direction;
An engagement protrusion (16b) provided along the length direction on the left and right end faces of the end plate frame member (15C);
When the end plate (12C) is dropped into the front and rear ends of the bottom plate (12A), the engagement protrusion (16b) is slid from above into the engagement groove (16a), thereby An assembly-type corrugated cardboard cage characterized in that the development of the side plate (12B) is locked.
The assembly type corrugated cardboard trough according to claim 1, wherein when the side plate (12B) is bent along a V-groove at each end of the bottom plate frame member (15A) and the side plate frame member (15B). An assembly type corrugated cardboard basket provided with positioning means (19a, 19b) for aligning the front and rear positions of the left and right side plates (12B) together.
An assembly type corrugated cardboard trough according to claim 2,
The positioning means comprises:
A mortise groove (19a) provided to open downward and laterally at the lower end of the side plate frame member (15B);
A flat tenon piece (19b) provided on the left and right ends of the bottom plate frame member (15A) outwardly to the left and right;
An assembly type corrugated cardboard box, wherein the tenon piece (19b) is slidably fitted into the tenon groove (19a) when the side plate (12B) is bent along the V-groove on the left and right sides of the bottom plate (12A).
The assembly type corrugated cardboard trough according to claim 1, 2, or 3, wherein an engagement groove (16a) provided in the side plate frame member (15B) and an engagement protrusion (16b) provided in the face plate frame member (15C). Assembling-type corrugated cardboard casket that has a reverse positional relationship to).
  The assembly type corrugated cardboard trough according to claim 3 or 4, wherein the tenon groove (19a) provided in the side plate frame member (15B) and the tenon piece (19b) provided in the bottom plate frame member (15A). Assembled corrugated cardboard bowl with the opposite relationship.

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