JP2022169875A - cardboard bed - Google Patents

Abstract

To provide a cardboard bed which does not occupy a large space in storage or the like and has resistance to a load or deformation.SOLUTION: A cardboard bed comprises: a width direction member comprising a horizontal plate part extending in a bed width direction and a vertical slit of a vertical plate part; an end part member comprising a vertical holding part, a horizontal folding part continuous to the vertical folding part, and a horizontal slit of the horizontal folding part; and a vertical direction member comprising a vertical plate part extending in a bed longitudinal direction, a plurality of vertical slits provided on the vertical plate part, and a horizontal slit horizontally provided. The vertical slit of the vertical direction member has a width at which two vertical plate parts of the width direction member or the end part member can be engaged. A plurality of rows are arranged in which the vertical direction members are directed reversely and two vertical direction members are arranged. The end part member is arranged on each of front/rear end parts, the width direction member is arranged therebetween, two vertical plate parts of the width direction member or the end part member are inserted into each vertical slit of the vertical direction member and engaged, and the horizontal slits of the vertical direction member and the end part member are engaged.SELECTED DRAWING: Figure 1

Description

The present invention relates to a simple bed made of corrugated board.

Japanese Unexamined Patent Application Publication No. 2002-200000 proposes an assembly-type furniture using a foam board or a plastic corrugated cardboard. Further, Patent Document 2 proposes a bed, a headboard and the like made of plastic corrugated cardboard as a knockdown type furniture.

Further, Patent Document 3 proposes a collapsible simple bed made of corrugated cardboard sheet as a simple bed to be used at an evacuation center in the event of a disaster. It is an assembly type simple bed made of corrugated cardboard sheet, and the first sheet is laminated with leg sheets to support the top plate on one side of the top sheet, and the legs are reinforced. and a second seat for the legs, wherein the leg seats in the first seat are opened in a double-door manner from the center to form a pair or a plurality of pairs of legs facing each other, and the second seat bridges the pairs of legs. can be assembled.

Japanese Unexamined Patent Application Publication No. 6-311918 Utility Model Registration No. 3229918 Utility Model Registration No. 3229660

The collapsible furniture described in Patent Literatures 1 and 2 is of a collapsible type using a foam board or plastic corrugated cardboard, and is intended to be carried outdoors for a picnic or the like. However, plastic cardboard is expensive as a material, and it is not easy to discard or recycle after use. Also, the foam board does not have sufficient strength. Although there is a description that the invention of Patent Document 1 can be applied to a bed, only examples of small furniture such as a chair for one person and a side table are described, and large furniture such as a bed is made with sufficient strength. is difficult.

Patent document 2 mentions application to a bed. The fixed plate is provided with a large number of wide slits that engage with the two legs, but the slits at both ends are narrow slits that engage with only one leg. The legs of the folding plate are engaged with these slits to form the shape of the bed. One leg of each of the bent plates on both sides is engaged with the narrow slit at the end. Then, the ends of the fixing plate outside the narrow slit have a shape protruding to both sides of the formed bed. It is thought that a certain strength can be obtained by combining the substantially channel-shaped bent plate with the fixed plate perpendicularly to each other in a grid pattern. However, since the substantially channel-shaped bent plate is formed over the length of the bed in the vertical direction, the bent plate or the first plate-like body before bending has a length of nearly 2 m even before assembly. It is a member. Therefore, storage and transportation are difficult even in a state before assembly, and advantages of being an assembly type are small.

In the bed of Patent Document 2, five bent plates are arranged so that the base portions are positioned on one plane to form a sleeping surface. However, it is difficult to strictly align the shapes and dimensions of the plurality of folding plates, and the height of the base portion is uneven to some extent. A step due to this unevenness occurs along the entire length of the bed. When the user sleeps on the bed, the user feels a step over the whole body, which is uncomfortable.

The simple bed of Patent Document 3 uses corrugated paper. A corrugated cardboard sheet with a thickness of 10 mm having a two-layer structure in which two mediums are sandwiched between three liners is used (paragraph 0017 of the same document). A top plate sheet forming a top plate portion and a leg portion sheet forming legs for supporting the top plate portion are integrally laminated by adhesion to form a first sheet, and a second sheet is attached to a pair of legs. Assembled so as to cross-link.

The first sheet is a heavy and large member in which a sheet for the top plate forming the upper surface of the bed and a sheet for the legs forming the legs by a double door are integrated. At least one of the sheet for the top plate and the sheet for the legs is provided with a cut groove that serves as a folding line so that it can be folded in two, but it is still a considerably large member and is not easy to store or move. . Moreover, providing such a cut groove leads to a decrease in strength. Moreover, such a complex first sheet is expensive. The structure in which the second sheet is assembled so as to bridge the pair of legs cannot be said to be strong, and there is almost no force to prevent deformation especially near the floor surface.

An object of the present invention is to provide a corrugated cardboard bed which does not take up much space during storage or transportation and is resistant to load and deformation.

In order to solve the above problems, the corrugated cardboard bed of the present invention includes a rectangular horizontal plate portion extending in the width direction of the bed, vertical plate portions extending downward from both side ends of the horizontal plate portion, a plurality of width direction members formed of corrugated board having a plurality of vertical slits provided on the lower end side of the vertical plate;
A rectangular horizontal plate portion extending in the width direction of the bed, a vertical plate portion extending downward from a first end of the horizontal plate portion, and a vertical folding portion extending downward from a second end of the horizontal plate portion. Two end members formed of corrugated cardboard with horizontal slits provided horizontally from the tip of the horizontal folded part and the horizontal folded part horizontally facing the vertical plate part following the vertical folded part. When,
A vertical plate portion extending in a belt shape in the length direction of the bed, a plurality of vertical slits provided on the lower end side of the vertical plate portion, and horizontal slits provided horizontally from either side ends of the vertical plate portion. a plurality of longitudinal members formed of corrugated board comprising
The steps of the horizontal plate portions of the width direction member and the end member are along the length direction of the bed,
The vertical slits of the width direction member and the end member are wide enough to engage one longitudinal member,
The vertical slit of the longitudinal member has a width such that two vertical plates of the width direction member or the end member can be engaged,
The horizontal slit of the longitudinal member has a width that allows one horizontally folded portion of the end member to engage,
In each row, two vertical members are arranged with the side on which the horizontal slit is provided facing opposite to each other, and these are arranged in parallel in multiple rows,
End members are arranged at the front and rear end portions, respectively, and width direction members are arranged between them, and two vertical plate portions of the width direction members or the end members are inserted into each vertical slit of the vertical direction member. engaged with a vertical slit in the width member or the end member;
The horizontal slits in the longitudinal members are engaged by the horizontal slits in the horizontal folds in the end members.
The longitudinal members arranged in each row are separated from each other, the ends on the side opposite to the side on which the horizontal slit is provided are close to each other, and the extreme ends of the adjacent longitudinal members are perpendicular to each other. Preferably, the two longitudinal members are connected by engaging one of the vertical plate portions of the same width member with each of the slits.
Also, it is preferable that the number of width direction members is three or five.
Further, the aligned longitudinal members in each row are separated from each other such that the inner ends of the horizontal slits are adjacent to each other and the extreme vertical slits of adjacent longitudinal members are each of the same width. Preferably, the two longitudinal members are connected by engaging one of the vertical plates of the direction members.

The corrugated board bed of the present invention can be implemented with less material and is more resistant to load and deformation. Since it is small in the pre-assembled state, it does not take up much space in storage and transportation. In addition, there are few types of parts, and assembly and disassembly are easy.

1 is a perspective view showing an example of a cardboard bed; FIG. It is a front view which shows a width direction member. It is a development view of the same. It is a front view showing an end member. It is a development view of the same. FIG. 4 is a front view showing a longitudinal member; It is a top view which shows a top plate. 1 is a perspective view showing the first stage of assembly of a cardboard bed; FIG. Fig. 12 is a perspective view showing the second stage of assembly of the cardboard bed; Fig. 3 is a perspective view showing the third stage of assembly of the cardboard bed; FIG. 4 is a perspective view showing a fourth stage of assembling a cardboard bed; FIG. 11 is a perspective view showing another example of a cardboard bed;

A mode for carrying out the present invention will be described in detail based on the drawings. FIG. 1 is a perspective view showing an example of a cardboard bed. The cardboard bed 1 has a plurality of widthwise members 2 , two end members 3 and a plurality of longitudinal members 4 . The corrugated cardboard bed 1 has a substantially rectangular parallelepiped shape, and its shape and dimensions can be arbitrarily selected. In the present invention, the longitudinal direction of the bed body, that is, the direction along the user's body when lying down is defined as the longitudinal direction. The width direction is defined as the direction perpendicular to the length direction on the upper surface of the bed. In this example, the size is the same as that of a general single bed, with a length of 198 cm and a width of 90 cm. Therefore, it has a size that most people, including adults, can comfortably use, and can use ordinary futons and blankets as they are. In addition, the height is 30 cm, and the distance from the installation surface is sufficient, and even if the dust on the floor surface rises up, it does not easily reach the user's body, so it is hygienic.

The number of width direction members 2 can be selected according to the size of the bed, the desired strength, the thickness of the corrugated board to be used, etc., but an odd number is preferable. With the above dimensions, 3 or 5 would use less material and still provide adequate strength. In particular, when the height of the bed is about 30 cm, it is preferable to use three or five. In this example, there are three width direction members 2 .

The width direction member 2 will be described. FIG. 2 is a front view showing the width direction member, and FIG. 3 is a developed view of the same. The width direction member 2 is a substantially rectangular corrugated board when unfolded. Two parallel folding lines 5 are provided, each having the same distance from the edge. The portion between the two bending lines 5 is the horizontal plate portion 6 and the outer side is the vertical plate portion 7 . The corrugation of the corrugated board is in a direction orthogonal to the folding line 5 .

When the two folding lines 5 are folded at right angles, the shape shown in FIG. 3 is obtained. A horizontal plate portion 6 is positioned at the top, and vertical plate portions 7 extend downward from both sides thereof to form a channel-shaped member that opens downward. When assembled as a bed, they are arranged along the width direction of the bed. At this time, on the horizontal plate portion 6, the corrugated cardboard step runs along the length direction of the bed. Further, in the vertical plate portion 7, the corrugated cardboard has vertical lines. Moreover, the thickness of the corrugated board used is 5 mm.

In this example, the length of the horizontal plate portion 6 in the width direction of the bed is approximately 90 cm, and the length in the length direction of the bed is approximately 40 cm. Also, the height of the vertical plate portion 7, that is, the length from the bending line 5 to the edge is approximately 30 cm.

A plurality of vertical slits 9 are provided in the vertical plate portion 7 along the edge 8 . A slit with a depth of half the distance from the edge 9 to the folding line 5 is provided in both edges 9 of the vertical plate 7 . The number of slits corresponds to the number of rows of longitudinal members 4 described later, and the width of the slits corresponds to the thickness of one longitudinal member 4 . Here, there are 6 slits and the width is 6 mm. Vertical slits formed from bottom to top when incorporated into the bed.

The end member 3 will be explained. FIG. 4 is a front view showing the end member, and FIG. 5 is an exploded view of the same. Similarly to the width direction member 2, the end member 3 is also a substantially rectangular cardboard plate when unfolded. The outer shape when deployed is substantially the same as that of the width direction member 2 . Let one of the opposing edges (upper side in FIG. 5) be the first edge 10 and let the other be the second edge 11 . Two parallel first fold lines 12a,b are provided, the same distance from the first edge 10 and the second edge 11, respectively, which are located at the fold lines 5 of the transverse member 2. handle. In this example, it is located 30 cm away from the first edge 10 and the second edge 11 . A single second folding line 13 is provided between the first edge 10 and the first folding line 12a closer thereto. In this example, it is located at a distance of 2/3 of the distance between the first edge 10 and the first folding line 12a from the first edge 10, specifically at a distance of 20 cm.

When the first folding lines 12a and 12b and the second folding line 13 are each folded at a right angle, the shape shown in FIG. 5 is obtained. The horizontal plate portion 14 is positioned at the top, and the end along the first folding line 12b is the first end, and the other end along the first folding line 12b is the second end. A single vertical plate portion 15 continues downward from the first end portion (first bending line 12b). A vertical folded portion 16 extends downward from the other first folding line 12 b , and a horizontal folded portion 17 is formed horizontally toward the vertical plate portion 15 following the vertical folded portion 16 . At this time, on the horizontal plate portion 14, the corrugated cardboard tiers run along the length of the bed. In addition, in the vertical plate portion 16, the corrugated cardboard has vertical lines. The corrugated board used is the same as the width direction member 2 and has a thickness of 5 mm.

The vertical plate portion 15 is provided with a vertical slit 18 along the second edge 11 in the same manner as the vertical plate portion 7 of the width direction member 2 . The number, width, depth and position of the vertical slits 18 are the same as those of the vertical slits 9 of the vertical plate portion 7 of the width direction member 2 .

The same number of horizontal slits 19 are provided in the horizontal folded portion 17 along the first edge 10 at positions facing the vertical slits. The depth of the horizontal slit 19 is half the distance between the first edge 10 and the second folding line 13, in this example 5 cm. The width of the horizontal slit 19 corresponds to the thickness of one sheet of the longitudinal member 4, which is 7 mm in this example.

Top plate fixing slits 20 are provided on both sides of the horizontal plate portion 14 .

The longitudinal member will be explained. FIG. 6 is a front view showing the longitudinal member. The longitudinal member 4 is a substantially rectangular member made of paper corrugated board. A vertical plate portion extending in a belt shape in the length direction of the bed, a plurality of vertical slits 21 provided on the upper end side of the vertical plate portion, and horizontal slits 21 provided horizontally from either side ends of the vertical plate portion. A slit 22 is provided.

The length of the longitudinal member 4 corresponds to half the length of the bed, in this example 99 cm. Also, the height corresponds to the vertical plate portions 7 and 15 of the width direction member 2 and the end member 3, and is 30 cm in this example. The thickness of the corrugated board used in this example is 5 mm. Also, the corrugated cardboard has vertical lines.

The number of vertical slits 21 is related to the number of width direction members 2 , and in this example, the number of vertical slits 21 is two corresponding to three width direction members 2 . As the number of width direction members 2 increases, the number of vertical slits 21 also increases.

A vertical slit 21a is provided at a position separated by a distance corresponding to the length of the horizontal plate portion 14 of the width direction member 2 from the end portion where the horizontal slit 22 is provided, and the length of the horizontal plate portion 6 of the width direction member 2 is provided. A next vertical slit 21b is provided at a distance corresponding to the distance. Even when three or more slits are provided, the vertical slits 21 are provided repeatedly at the same intervals. In this example, the first vertical slit 21 is provided at a position 30 cm from the end where the horizontal slit 22 is provided, and another vertical slit 21 is provided at a position 30 cm from there. The depth of this vertical slit 21 is half the height of the width direction member 2, and is 15 cm in this example. The width of the vertical slit 21 is such that two vertical plate portions 7 and 15 of the width direction member 2 or the end member 3 can be engaged with each other. In this example, it is 13 mm.

The position of the horizontal slit 22 corresponds to the position of the horizontally folded portion 17 of the end member 3 in the height direction. That is, it is provided at a height lower than the upper end of the longitudinal member 4 by the length of the vertically folded portion 16 of the end member 3 . Also, the depth of the horizontal slit 22 corresponds to half the length of the horizontal folded portion 17 . The width of the horizontal slit 22 corresponds to the width of the horizontal slit 22, but is about 1 mm wider than the horizontal slit 18 of the horizontal folded portion 17, and is 7 mm in this example.

In this example, a bending line 23 is provided at a central position in the length direction. This folding line 23 allows the product to be folded in half, which is convenient and saves space during storage and transportation.

Two longitudinal members 4 are arranged in each row with the sides on which the horizontal slits are provided facing opposite to each other, and these are arranged in parallel in a plurality of rows. Here, two longitudinal members 4 arranged in one row may be connected back to back. This makes it possible to reduce the number of members. In this case, it is preferable to provide a folding line along the connecting portion as well, so that it can be folded into a small size during storage and transportation. In this example the single longitudinal member is formed as shown in FIG. Two separate longitudinal members are arranged back-to-back to form a row. This row corresponds to the number of vertical slits in the width direction member 2 and the end member 3, and in this example there are six rows. Therefore, twelve longitudinal members 4 as shown in FIG. 6 are used.

The width direction member 2, the end member 3 and the longitudinal direction member 4 can be used to build up the body shape of the bed. In this example, a top plate 24 made of corrugated board is further provided. FIG. 7 is a plan view showing the top plate. The top plate 24 has a size that covers almost the top surface of the bed, and in this example, both length and width are slightly smaller than the top surface of the bed. The steps of the corrugated board are along the width direction of the bed. Three folding lines 25 are provided at equal intervals along the length direction so that it can be folded into four.

Cut lines 26 are provided at the four corners of the top plate 24, respectively. A region to be a folded portion 27 is formed inside the cut line 26 . The position of the cut line 26 is aligned with the position of the top plate fixing slit 20 provided in the end member.

The method of assembling the cardboard bed and the structure of the cardboard bed will be explained. 8 to 11 are perspective views showing how the cardboard bed is assembled. Here, the description will be divided into four stages. 8 shows the first stage, FIG. 9 shows the second stage, FIG. 10 shows the third stage, and FIG. 11 shows the fourth stage.

FIG. 8 shows the first stage of assembly. The first bending lines 12a and 12b and the second bending line 13 of the end member are mountain-folded to form a plane plate portion 14, a vertical plate portion 15, a vertical folded portion and a horizontal folded portion 17, and a vertical slit 18 is formed. Assemble the longitudinal members 4 . As shown in FIG. 8a, this operation can be easily carried out by turning the plane plate portion 14 downward and inserting the vertical member 4 from above. The vertical slit 21a closest to the horizontal slit 22 of the vertical member 4 is engaged with the vertical slit 18 of the end member 3, and the horizontal slit 19 of the end member 3 and the horizontal slit 22 of the vertical member 4 are engaged. Engage. In this way, one end member 3 and six longitudinal members 4 can be rigidly combined, as shown in FIG. 8b. In particular, by engaging the horizontal slit 19 of the end member 3 with the horizontal slit 22 of the vertical member 4, the distal end of the vertical member 4 is restricted from moving in the vertical direction, and in addition, it can be moved within a plane. Since shaking is also regulated, deformation of the bed body is prevented. This results in the situation shown in FIG. 8b.

FIG. 9 shows the second stage of assembly. It is convenient to perform the work from here on with the plane plate portion 14 facing upward. Width member 2 is mounted adjacent to end member 3 . One of the vertical plate portions 6 of the width direction member 2 is inserted into the first vertical slit 21a of the longitudinal member 4, and the other is inserted into the next vertical slit 21b. The vertical plate portion 15 of the end member 3 has already been inserted into the first vertical slit 21a, but the vertical slit 21 of the vertical member 4 has a width that allows the two vertical plate portions 6 and 15 to be inserted. do not have. In the present case, this completes the second stage and results in the situation shown in FIG. 9b. When more width direction members 2 are used, the third and subsequent vertical slits remain, so more width direction members 2 are attached.

For the other end member 3 as well, the first and second stages of assembly are performed. In this way, two members are formed which constitute the halves of the bed body as shown in FIG. 8b.

FIG. 10 shows the third stage of assembly. After completing the second step, the two members in the state shown in FIG. 8b are put together so that the end members 3 face opposite to each other. At this time, rows are formed in which two longitudinal members 4 are arranged back to back, and six rows are formed in this example. At the end where the longitudinal members 4 are arranged, only one vertical plate portion 7 of the width direction member 2 is inserted into the vertical slit 21b farthest from the end member 3 . Finally, the vertical plate portion 7 of the remaining width direction member 2 is inserted into the vertical slit 21b and attached. Two longitudinal members are coupled by engaging one of the vertical plate portions of the same width member with the vertical slits 21b at the extreme ends of two adjacent longitudinal members in each row. The members constituting the halves of the bed body are firmly joined together, and a single bed body is assembled as shown in FIG. 10b.

The end member 3 and the width direction member 2 are arranged adjacent to each other without a gap. The vertical plates 7 and 15 of the end member 3 and the width direction member 2 and the vertical direction member 4 support the entire bed as legs. In particular, the vertical plate portions 7 and 15 of the end member 3 and the width direction member 2 are inserted into each of the vertical slits 22 of the vertical direction member 4 in close contact with each other. It is strong against loads in the vertical direction, and is less prone to deflection and buckling. In addition, in the end member 3, the vertical plate portions 7 and 15 of the width direction member 2, and the vertical direction member 4, corrugated cardboard corrugations extend in the vertical direction, so that they have a high load capacity.

The horizontal plate portions 6 and 14 of the end member 3 and the width direction member 2 are arranged substantially on the same plane to form a bed surface. Therefore, even in this state, it can be used as a bed. Although it is conceivable that the heights of the horizontal plate portions 6 and 14 are different due to dimensional errors of the end member 3 and the width direction member 2, a step on the bed surface is caused along the width direction of the bed. Therefore, only a part of the body of the user lying on the bed is touched, and the discomfort caused by the step is alleviated.

Since the corrugated cardboard bed of this embodiment has the top plate 24, the height difference caused by the uneven heights of the horizontal plate portions 6 and 14 of the end member 3 and the width direction member 2 is hardly felt. FIG. 11 shows the fourth stage of assembly. Since the top plate 24 is provided with a cut line 26, a tongue-like folded portion is formed by pressing a region 27 inside the cut line 26.例文帳に追加The top plate 24 is spread out and placed on the upper surface of the bed body formed by the end member 3 and the horizontal plate portions 6 and 14 of the width direction member 2 . Then, the folded portion 27 is inserted into the top plate fixing slit 20 of the end member 3 . As a result, the four corners of the top plate 24 are joined to the end members 3, and the separation of the top plate 24 from the bed body is prevented. Thus, the assembly work is completed and the cardboard bed is completed (Fig. 11b). The double structure of the horizontal plate portions 6 and 14 and the top plate 24 can increase the strength of the upper surface. In this example, the corrugated cardboard tiers are along the length of the bed on the horizontal plate portions 6 and 14 and along the width direction on the top plate 24 . By making the steps perpendicular to each other in this way, the strength is increased and deformation and breakage in all directions are prevented.

As mentioned above, you can easily assemble a cardboard bed. The members constituting the bed are only 3 width direction members, 2 end members, 12 length direction members and 1 top board, and the types and number of the members are small. There are no small parts that could get lost. Moreover, no special tools are required for assembly. Disassembly is also easy, and the above operations can be reversed. Therefore, even if there are not sufficient tools or a working place, such as in a disaster shelter, the assembly can be done easily and in a short period of time, and evacuation life can be made comfortable.

This corrugated board bed can be made strong using relatively thin corrugated boards. Therefore, it can be made light and inexpensive. Due to its structural strength, a bed with a height of 30 cm can be realized, and the user's body is kept at a sufficient distance from the floor, which is hygienic. In addition, since there is no part protruding outside from the bed surface, it does not get in the way even when walking nearby, and it is excellent in design.

Each part is made smaller by folding along the fold lines, making it suitable for storage and transportation. When a set of parts is packed in a box, it becomes a compact box with a weight of about 10 kg, a length of 92.5 cm, a width of 51 cm, and a height of 16.5 cm.

Another embodiment of a cardboard bed is described. Although there were three width direction members in the previous example, the number can be increased more than that. By increasing the number of plates, the number of vertical plate portions that become legs when assembled into a bed increases, and a greater load capacity can be achieved. On the other hand, if the number of width direction members is increased too much, the number of parts will increase, and the total amount of corrugated board used will also increase, resulting in an increase in weight and cost. Moreover, it is preferable that the number of width direction members is an odd number. This is because, if the number is odd, two longitudinal members arranged in a row can be formed in the same shape and connected by the width member. Among them, it is preferable that the number is 3 or 5. At this time, it is the most suitable choice because the strength of the bed is high and the number of parts and the amount of corrugated board used are reduced.

FIG. 12 is a perspective view showing another example of a cardboard bed. The corrugated cardboard bed 1 also has a main body made up of widthwise members 2 , end members 3 , and vertical members 4 . A top plate may also be provided, but since the cardboard bed in this example is stronger, no top plate is provided here.

In this example, five width direction members 4 are provided. The horizontal plate portions 6 and 14 of the width direction member 2 and the end member 3 have a shape obtained by roughly dividing the upper surface of the bed into seven equal parts. In this example, the length of the horizontal plate portions 6, 14 along the longitudinal direction of the bed is approximately 29 cm.

On the other hand, the longitudinal members 4 can be less than in the previous example. In this example, 10 wires are arranged in 5 rows and used. Therefore, there are five vertical slits in the width direction member 2, vertical slits in the end members, and five horizontal slits. There are three vertical slits in the longitudinal member 4 . Moreover, when the top plate is not provided, it is not necessary to provide the top plate fixing slit in the end member.

The corrugated cardboard bed of this example is assembled in the same manner as in the previous examples, and the first to third steps are performed.

1. Cardboard bed2. Width direction member 3 . end member 4 . longitudinal member5. fold line6. horizontal plate 7 . vertical plate 8 . edge 9 . vertical slit 10 . first edge 11 . second edge 12 . first fold line 13 . second fold line 14 . horizontal plate portion 15 . vertical plate 16 . vertical fold 17 . horizontal folding section 18 . vertical slits 19 . horizontal slits 20 . Top plate fixing slit 21 . vertical slits 22 . horizontal slit 23 . fold line 24 . top plate 25 . fold line 26 . score line 27 . folding part

Claims (4)

A rectangular horizontal plate portion extending in the width direction of the bed, a vertical plate portion extending downward from both side ends of the horizontal plate portion, and a plurality of vertical slits provided on the lower end side of the vertical plate portion. a plurality of width direction members formed of corrugated cardboard plates;
A rectangular horizontal plate portion extending in the width direction of the bed, a vertical plate portion extending downward from a first end of the horizontal plate portion, and a vertical folding portion extending downward from a second end of the horizontal plate portion. Two end members formed of corrugated cardboard with horizontal slits provided horizontally from the tip of the horizontal folded part and the horizontal folded part horizontally facing the vertical plate part following the vertical folded part. When,
A vertical plate portion extending in a belt shape in the length direction of the bed, a plurality of vertical slits provided on the upper end side of the vertical plate portion, and horizontal slits provided horizontally from either side end portion of the vertical plate portion a plurality of longitudinal members formed of corrugated board comprising
The steps of the horizontal plate portions of the width direction member and the end member are along the length direction of the bed,
The vertical slits of the width direction member and the end member are wide enough to engage one longitudinal member,
The vertical slit of the longitudinal member has a width such that two vertical plates of the width direction member or the end member can be engaged,
The horizontal slit of the longitudinal member has a width that allows one horizontally folded portion of the end member to engage,
In each row, two vertical members are arranged with the side on which the horizontal slit is provided facing opposite to each other, and these are arranged in parallel in multiple rows,
End members are arranged at the front and rear end portions, respectively, and width direction members are arranged between them, and two vertical plate portions of the width direction members or the end members are inserted into each vertical slit of the vertical direction member. engaged with a vertical slit in the width member or the end member;
A cardboard bed in which the horizontal slits in the longitudinal members engage the horizontal slits in the horizontal folds in the end members. The aligned longitudinal members in each row are separated from each other, the ends opposite to the side of the horizontal slits are adjacent to each other, and the endmost vertical slits of the adjacent longitudinal members are the same. 2. A corrugated board bed according to claim 1, wherein the two longitudinal members are connected by engaging one of the vertical plates of the width members. 3. The corrugated board bed according to claim 2, wherein the number of width direction members is 3 or 5. A top plate made of corrugated board is provided on the horizontal plate portions of the width direction member and the end member, and the steps are along the width direction of the bed. A folding part is provided,
4. The cardboard bed according to any one of claims 1 to 3, wherein the horizontal plate portion of the end member is provided with a top plate fixing slit into which the folded portion of the top plate is inserted.

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