JP3215781U - Corrugated bed - Google Patents

Abstract

To provide a cardboard bed that can secure a space for storing luggage and can be easily assembled. A corrugated cardboard bed 1 is formed of corrugated cardboard, and is formed in a cylindrical shape and spanned between four leg portions 10 arranged at intervals in the longitudinal direction and the upper portions of the four leg portions. The three rail portions 30 connected to each other and the floor portion 40 supported by the three rail portions, and a range surrounded by the rail portion 30 or the floor portion 40 between the leg portions 10 adjacent to each other. Is formed with accommodation spaces S1, S2 capable of accommodating the packages B1, B2. [Selection] Figure 1

Description

  The present invention relates to a cardboard bed.

  Corrugated beds that can be easily assembled are known.

  For example, the cardboard bed described in Patent Document 1 is configured by arranging two box-shaped structures and one sofa-shaped structure. The box-shaped structure is formed in a substantially rectangular parallelepiped shape, and the sofa-shaped structure is formed in a substantially L shape in which a rising portion is continuous with one end of a rectangular portion. Each structure includes a plurality of reinforcing plates arranged in a vertical state at predetermined intervals, and an outer surface plate wound around the periphery of each reinforcing plate. Both end portions of the outer surface plate are inserted into the first and second mounting grooves of the reinforcing plate in a state of being bent at an obtuse angle, and when a load is applied during use, the outer surface plate bites into the first and second mounting portions.

Utility Model Registration No. 3074390

  The above-mentioned corrugated cardboard bed did not have legs and the like, and each structure was simply placed directly on the installation surface. Therefore, the corrugated cardboard bed cannot be provided with a space for storing luggage under the floor surface on which a person lies. For this reason, a space for placing luggage in the room where the cardboard bed is installed is required, and the room space cannot be used effectively. Further, it is not easy to wind the outer plate while holding the plurality of reinforcing plates in a vertical posture, and there is a problem that it takes a lot of skill and time to assemble each structure.

  In order to solve the above-mentioned problems, the present invention provides a cardboard bed that can secure a space for storing luggage and can be easily assembled.

  In order to achieve the above-mentioned object, the present invention is a corrugated bed made of corrugated cardboard, which is formed into a cylindrical shape and has a plurality of legs arranged at intervals in the longitudinal direction, and the plurality of legs. A plurality of rail portions that are bridged and connected to an upper portion of the portion, and a floor portion that is supported by the plurality of rail portions, between the adjacent leg portions, and the rail portion or the floor portion A storage space capable of storing luggage is formed in a range surrounded by.

  In this case, it is preferable that the leg portion includes a peripheral wall formed in a rectangular tube shape, and a flap that is connected to a lower end portion of the peripheral wall and closes a lower end surface of the peripheral wall.

  In this case, it is preferable that an insertion piece to be inserted inside the peripheral wall in a state where the lower end surface of the peripheral wall is closed by the flap is connected to the front end of the flap.

  In this case, the leg portion has a first engagement groove cut downward from the upper end, and the rail portion is cut upward from the lower end and engaged with the first engagement groove. It is preferable to have an engaging groove.

  In this case, the floor portion is formed in an inner plate portion placed on the upper surfaces of the plurality of rail portions, a floor surface plate overlapping the inner plate portion, and a state extending downward from a peripheral edge portion of the floor surface plate. And a floor tray having a floor peripheral wall fitted to the upper portions of the plurality of legs.

  Further, in this case, the inner plate portion is connected to the plate main body placed on the upper surface of the plurality of rail portions and both longitudinal ends of the plate main body, and is bent downward to be the plurality of rails. It is preferable that the lower inner board which has a pair of floor flaps which overlap with the end surface of a part, and the upper inner board arrange | positioned on the upper surface of the said plate main body of the said lower inner board are included.

  In this case, it is preferable to further include a headboard that is inserted into the leg portion disposed at the outermost end in the longitudinal direction and extends above the upper surface of the floor portion.

  In this case, two or more of the plurality of leg portions are arranged at a first interval from one longitudinal direction to the other, and the first leg with respect to the other end surface of the other leg portion in the longitudinal direction is the first. One spacer arranged at a second interval shorter than the interval, and a spacer including a support groove for inserting the lower portion of the headboard inside the leg portion arranged at the other end in the longitudinal direction It is preferable that the rail portion and the floor portion are disposed at a position avoiding the support groove of the spacer in order to allow insertion of the headboard.

  In this case, three or more of the plurality of leg portions are arranged, the rail portion includes a plurality of divided rail portions arranged in a line in the longitudinal direction, and the floor portion corresponds to the plurality of divided rail portions. It is preferable that a plurality of divided floor portions arranged in a line in the longitudinal direction are included, and the divided rail portions are constructed on at least two adjacent leg portions.

  According to the present invention, it is possible to secure a space for storing luggage on a cardboard bed. Further, the cardboard bed can be easily assembled.

It is a perspective view which shows the cardboard bed etc. which concern on 1st Embodiment of this invention. It is a top view which shows the blank of the leg part of the cardboard bed which concerns on 1st Embodiment of this invention. It is a top view which shows the blank of the spacer of the cardboard bed which concerns on 1st Embodiment of this invention. It is a top view which shows the blank of the rail part of the cardboard bed which concerns on 1st Embodiment of this invention. It is a top view which shows the blank of the lower inner board of the cardboard beds which concerns on 1st Embodiment of this invention. It is a top view which shows the blank of the upper inner board of the cardboard beds which concerns on 1st Embodiment of this invention. It is a top view which shows the blank of the floor tray of the cardboard bed which concerns on 1st Embodiment of this invention. It is a top view which shows the blank of the headboard of the cardboard bed which concerns on 1st Embodiment of this invention. It is a disassembled perspective view which shows the leg part, spacer, and rail part of the cardboard bed which concern on 1st Embodiment of this invention. It is a disassembled perspective view which shows an inner-plate part and floor trays, such as a leg part of the cardboard bed which concerns on 1st Embodiment of this invention. It is a disassembled perspective view which shows a floor part, such as a leg part of the cardboard bed which concerns on 1st Embodiment of this invention, and a headboard. It is the perspective view which looked at the leg part of the cardboard bed which concerns on 1st Embodiment of this invention from the bottom side. It is XIII-XIII sectional drawing of FIG. It is a perspective view which shows the middle of the assembly of the spacer of the cardboard bed which concerns on 1st Embodiment of this invention. It is the perspective view which looked at the floor tray of the cardboard bed which concerns on 1st Embodiment of this invention from the bottom side. It is XVI-XVI sectional drawing of FIG. It is a perspective view which shows the middle of the assembly of the headboard of the cardboard bed which concerns on 1st Embodiment of this invention. It is a disassembled perspective view which shows the cardboard bed which concerns on 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawing, “Fr” indicates “front”, “Rr” indicates “rear”, “L” indicates “left”, “R” indicates “right”, and “U” indicates “ “Up” indicates “D” indicates “Down”. The front-rear direction is orthogonal (intersect) to the left-right direction (longitudinal direction), and the upper-lower direction is orthogonal (intersect) to the front-rear direction and the left-right direction. In the present specification, terms indicating directions and positions are used, but these terms are used for convenience of explanation, and do not limit the technical scope of the present invention.

[First Embodiment]
A cardboard bed 1 according to the first embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing a cardboard bed 1 and the like. FIG. 2 is a plan view showing the blank 10 </ b> A of the leg 10. FIG. 3 is a plan view showing the blank 20 </ b> A of the spacer 20. FIG. 4 is a plan view showing a blank 30 </ b> A of the rail portion 30. 5 is a plan view showing a blank 42A of the lower inner plate 42 of the floor 40, and FIG. 6 is a plan view showing a blank 43A of the upper inner plate 43 of the floor 40. As shown in FIG. FIG. 7 is a plan view showing a blank 44 </ b> A of the floor tray 44 of the floor portion 40. FIG. 8 is a plan view showing a blank 50 </ b> A of the headboard 50.

[Outline of cardboard bed]
As shown in FIG. 1, the cardboard bed 1 is made of paper cardboard. The cardboard bed 1 can be used for several days to several months, such as use in an evacuation center at the time of a disaster or use in an accommodation in an event. Under the corrugated cardboard bed 1, two storage spaces S1 for storing a luggage B1 such as a trunk are secured, and a storage space S2 for storing a small (thin) luggage B2 is secured in one place. ing.

  The cardboard bed 1 includes four leg portions 10, a spacer 20 (see FIG. 9), three rail portions 30, a floor portion 40, and a head board 50. The four leg portions 10 are so-called semi-A type cardboard boxes, and are arranged at intervals in the left-right direction (longitudinal direction). The three rail portions 30 are bridged and connected to the upper portions of the four leg portions 10. The spacer 20 is provided in the leg portion 10 disposed at the left end (the other end in the first direction). The floor portion 40 is supported by the three rail portions 30. The headboard 50 is inserted into the inside of the leg portion 10 disposed at the left end and extends upward from the upper surface of the floor portion 40. Since the four leg portions 10 have the same shape, only one leg portion 10 will be described below. For the same reason, one rail portion 30 will be described.

  The leg portion 10, the spacer 20, the rail portion 30, the floor portion 40, and the head board 50 are formed by bending the blanks 10A, 20A, 30A, 42A, 43A, 44A, 50A shown in FIGS. Has been. The blank 10A and the like are formed by punching a paper cardboard sheet with a punching die or the like. A part of the spacer 20, the rail portion 30, and the floor portion 40 is formed of, for example, a double-sided corrugated cardboard sheet in which a front liner 9B and a back liner 9C (see FIG. 9) are bonded to the front and back of a corrugated center 9A. . Further, the leg 10, part of the floor 40 and the headboard 50 may be composed of, for example, a double-sided corrugated sheet with a single-sided cardboard sheet pasted on a single-sided surface of the center shin 9 </ b> A. It is formed of a double-sided cardboard sheet. 2 to 8 show the front liner 9B side. In the present specification, the direction parallel to the center 9A of the corrugated cardboard sheet is referred to as the “step direction”, and the direction orthogonal to the step direction is referred to as the “flow direction”. In the drawing, “X” indicates “stage direction”, and “Y” indicates “flow direction”. Further, in the present specification, “upper (top)”, “lower (bottom)” and the like terms mean the upper (top), the lower (bottom) and the bottom in the state where the cardboard bed 1 is assembled (assembled state). It refers to a similar concept.

[leg]
As shown in FIG. 2, the blank 10 </ b> A of the leg portion 10 includes a pair of end walls 11, a pair of side walls 12, a passage piece 13, a pair of lower inner flaps 14, a pair of lower outer flaps 15, Is included.

<End wall, side wall, passage piece>
The pair of end walls 11 and the pair of side walls 12 are alternately connected via a vertical folding line L11 extending in the step direction, and are arranged in a line in the flow direction. The end wall 11 and the side wall 12 are formed in a substantially rectangular shape having substantially the same dimension in the step direction. The end wall 11 is formed narrower in the flow direction than the side wall 12. The passage piece 13 is connected to the end of the side wall 12 in the flow direction via a vertical folding line L11.

  A pair of floor engaging grooves 11 </ b> A are formed on the upper portions of the pair of end walls 11 at positions close to the vertical folding curve L <b> 11 sandwiching one side wall 12. The floor engaging groove 11A is cut in parallel to the longitudinal folding line L11 from the upper end of the end wall 11 downward. Three pairs of first engaging grooves 12A are formed in the pair of side walls 12 at substantially equal intervals. 12 A of 1st engagement grooves are cut | disconnected in parallel with the vertical fold curve L11 toward the downward direction from the upper end of the side wall 12. As shown in FIG. The first engagement grooves 12A at both ends in the flow direction are formed on the vertical folding curve L11. Each first engagement groove 12A is formed slightly shorter than the floor engagement groove 11A. A first engagement piece 12B is formed between each pair of first engagement grooves 12A.

<Lower inner flap>
The pair of lower inner flaps 14 are connected to the lower end portions of the pair of end walls 11 via a horizontal folding curve L12 extending in the flow direction. The lower inner flap 14 is formed in a substantially rectangular shape having substantially the same width as the dimension of the end wall 11 in the flow direction. The dimension in the step direction (extension dimension) of the lower inner flap 14 is set to be longer than half of the dimension in the flow direction of the end wall 11. An insertion fold curve L13 extends in the flow direction on the tip side of the lower inner flap 14 from the center in the step direction. An insertion groove 14 </ b> A extending in the step direction is formed at a substantially center in the flow direction of the lower inner flap 14. The insertion groove 14A is cut from the tip of the lower inner flap 14 to the lateral folding curve L12 so as to bisect the lower inner flap 14 in the flow direction. The groove width of the insertion groove 14A is set to about twice the thickness of the blank 10A (corrugated cardboard sheet).

<Lower outer flap>
The pair of lower and outer flaps 15 are connected to the lower ends of the pair of side walls 12 via a lateral folding curve L12. Further, an insertion piece 16 is continuously provided at the tip of the lower outer flap 15 via an insertion folding curve L13. The lower outer flap 15 and the insertion piece 16 are formed in a substantially rectangular shape having substantially the same width as the dimension of the side wall 12 in the flow direction. The extension dimension of the lower outer flap 15 and the insertion piece 16 is substantially the same as the extension dimension of the lower inner flap 14. The extension dimension of the lower outer flap 15 is set to approximately half the dimension of the end wall 11 in the flow direction.

  The vertical folding curve L11, the horizontal folding curve L12, and the insertion folding curve L13 are general-purpose ruled lines formed by crushing a corrugated cardboard sheet linearly in the thickness direction from the back liner 9C side. These folding lines L11 to L13 have a function of bending the cardboard sheet so that the back liner 9C faces inward. Further, the leg portion 10 is folded along a longitudinal folding line L11 so that the end wall 11 and the side wall 12 overlap, and the passage piece 13 is bonded to the inner surface of the end wall 11 and folded.

[Spacer]
As shown in FIG. 3, the blank 20 </ b> A of the spacer 20 includes first to seventh winding walls 21 to 27. The first to seventh winding walls 21 to 27 are continuously provided via a winding folding line L2 extending in the flow direction, and are arranged in a line in the order of the steps. The winding fold line L2 is a general ruled line.

  The first to seventh winding walls 21 to 27 are each formed in a substantially rectangular shape that is slightly narrower in the flow direction than the side wall 12. The stepwise dimension of the first winding wall 21 is set slightly shorter than the shortest distance from the lower end of the end wall 11 of the leg portion 10 to the lower end of the floor engaging groove 11A. The dimension in the step direction of the second winding wall 22 is set to be half or less of the extension dimension of the lower outer flap 15 of the leg portion 10. The third winding wall 23 is set slightly longer in the step direction than the first winding wall 21, and the fourth winding wall 24 is set slightly longer in the step direction than the second winding wall 22. The winding wall 25 is set to be slightly longer in the step direction than the third winding wall 23. The stepwise dimension of the sixth winding wall 26 is set to be sufficiently longer than the stepwise dimension of the fourth winding wall 24, specifically, the extension dimension of the lower outer flap 15 of the leg 10. Is set slightly shorter. The dimension in the step direction of the seventh winding wall 27 is set slightly shorter than the dimension in the step direction of the side wall 12 of the leg portion 10.

  The third entraining wall 23 has a pair of substantially rectangular locking holes 23A. The pair of locking holes 23 </ b> A are formed at intervals along the winding fold line L <b> 2 between the second winding wall 22 and the third winding wall 23 with a gap in the flow direction. The sixth winding wall 26 is formed with a pair of substantially trapezoidal locking pieces 26A. The pair of locking pieces 26A are cut at intervals corresponding to the pair of locking holes 23A at positions along the winding folding line L2 between the sixth winding wall 26 and the seventh winding wall 27. Yes.

[Rail part]
As shown in FIG. 4, the blank 30 </ b> A of the rail portion 30 includes a support wall 31 and a pair of hanging walls 32.

<Support wall>
The support wall 31 is formed in a substantially rectangular shape elongated in the flow direction. The overall length of the support wall 31 is set slightly shorter than the overall length of the cardboard bed 1. The width (length) in the step direction of the support wall 31 is set to be slightly wider (larger) than the width of the first engagement piece 12 </ b> B of the side wall 12.

<Vertical wall>
The pair of hanging walls 32 are connected to both ends of the supporting wall 31 in the step direction via rail folding lines L3 extending in the flow direction. The pair of suspended walls 32 are formed in a substantially rectangular shape that is symmetrical with respect to the support wall 31. The rail folding line L3 is a general ruled line.

  Four second engaging pieces 32 </ b> B are formed at the distal end portion of the hanging wall 32 so as to protrude outward in the step direction. The second engagement piece 32B arranged at one end (left end) in the flow direction is formed narrower in the flow direction than the other three second engagement pieces 32B. Further, the three second engagement pieces 32B excluding the second engagement piece 32B disposed at one end in the flow direction are formed with a first interval D1. The second engagement piece 32B disposed at one end in the flow direction is formed with a second interval D2 shorter (narrower) than the first interval D1 from the adjacent second engagement piece 32B. The first distance D1 corresponds to the left-right width of the luggage B1, and is set to about 510 mm, for example. The second interval D2 corresponds to the left-right width of the luggage B2, and is set sufficiently narrower than the first interval D1.

  A pair of second engagement grooves 32A are formed at both ends in the flow direction of the two second engagement pieces 32B disposed in the intermediate portion in the flow direction. Further, one second engagement groove 32A is formed on the inner side in the flow direction of the two second engagement pieces 32B arranged at both ends in the flow direction, and a substantially rectangular notch 32C is formed on the outer side in the flow direction. Is formed. The second engagement groove 32A is cut from the distal end of the hanging wall 32 toward the proximal end.

[Floor]
The floor portion 40 includes an inner plate portion 41 and a floor tray 44 (see FIG. 10). Further, the inner plate portion 41 includes a lower inner plate 42 and an upper inner plate 43 (see FIG. 10). The inner plate portion 41 (the lower inner plate 42 and the upper inner plate 43) is formed of a double-sided cardboard sheet, and the floor tray 44 is formed of a double-sided cardboard sheet.

<Lower inner plate>
As shown in FIG. 5, the blank 42 </ b> A of the lower inner plate 42 includes a plate body 42 </ b> B and a pair of floor flaps 42 </ b> C. The plate body 42B is formed in a rectangular shape that is long in the flow direction. The plate body 42 </ b> B is formed to have substantially the same length as the entire length of the rail portion 30. The pair of floor flaps 42C are connected to both ends in the flow direction (longitudinal direction) of the plate body 42B via an inner plate folding curve L40 extending in the step direction. The floor flap 42C is formed in a substantially rectangular shape having substantially the same width as the dimension of the plate body 42B in the step direction. The dimension (extension dimension) in the flow direction of the floor flap 42 </ b> C is set to be approximately the same as the length (height) of the floor engaging groove 11 </ b> A of the end wall 11. The inner plate folding curve L40 is a general ruled line.

<Upper inner plate>
As shown in FIG. 6, the blank 43A of the upper inner plate 43 is formed in a rectangular shape that is long in the step direction. The blank 43A is formed to have substantially the same size as the plate body 42B of the lower inner plate 42.

<Floor tray>
As shown in FIG. 7, the blank 44 </ b> A of the floor tray 44 includes a floor plate 45, a pair of floor side walls 46, a pair of floor end walls 47, and four floor folded plates 48.

(Floor board)
The floor plate 45 is formed in a substantially rectangular shape that is long in the flow direction. At both ends of the floor surface plate 45 in the step direction, four substantially square floor surface holes 45A are opened (total of 8 holes).

(Floor side wall)
The pair of floor side walls 46 are connected to both ends in the step direction of the floor plate 45 via a first floor folding curve L41 extending in the flow direction. The pair of floor side walls 46 are formed substantially symmetrically in the step direction with the floor plate 45 interposed therebetween. The floor side wall 46 is formed in a substantially rectangular shape having substantially the same dimension as the floor surface plate 45 in the flow direction.

  Each floor side wall 46 includes an outer surface plate 46A, a floor edge 46B, and an inner surface plate 46C.

  The pair of outer surface plates 46A are connected to both ends of the floor surface plate 45 in the step direction via the first floor folding curve L41. The pair of floor edge portions 46B are connected to the distal end portions of the pair of outer surface plates 46A via a floor fold line L44. The pair of inner surface plates 46C are connected to the front end portions of the pair of floor edge portions 46B via the floor fold line L44. That is, the inner surface plate 46C is connected to the outer surface plate 46A via the two floor folding lines L44, and the floor edge 46B is formed between the two floor folding lines L44. The first floor fold curve L41 and the floor fold line L44 are general ruled lines.

  The dimension (extension dimension) in the step direction of the outer surface plate 46A and the inner surface plate 46C is slightly longer than the extension dimension of the floor flap 42C of the lower inner plate 42. The dimension (extension dimension) in the step direction of the floor edge 46B is set slightly longer than the thickness of the corrugated cardboard sheet. Four floor engaging protrusions 46D protrude from the tip of each inner surface plate 46C. The four floor engaging protrusions 46D are formed so as to correspond to the four floor surface holes 45A opened in the floor surface plate 45 along the first floor folding curve L41.

(Floor end wall)
The pair of floor end walls 47 are connected to both ends in the flow direction of the floor plate 45 via a second floor folding curve L42 extending in the step direction. The pair of floor end walls 47 are formed symmetrically in the flow direction with the floor plate 45 interposed therebetween. The floor end wall 47 is formed in a substantially rectangular shape having substantially the same dimensions as the floor plate 45 in the step direction. The dimension (extension dimension) in the step direction of the floor end wall 47 is set to be substantially the same as the extension dimension of the outer surface plate 46A. The second floor fold curve L42 is a general ruled line.

(Folded floor board)
The four folded floor plates 48 are connected to both ends in the step direction of the pair of floor end walls 47 via a third floor folding curve L43 extending in the flow direction. The folded floor plate 48 extends from the end of the floor end wall 47 to a position aligned with the tip of the floor side wall 46. That is, the four folded floor plates 48 are arranged at the four corners of the blank 44A. The third floor fold curve L43 is a general ruled line.

[Headboard]
As shown in FIG. 8, the blank 50 </ b> A of the headboard 50 includes a first main body wall 51, a second main body wall 52, a pair of first folding walls 53, and a pair of second folding walls 54. Yes.

<First body wall, second body wall>
The first main body wall 51 is connected to the stepwise end of the second main body wall 52 via two main body folding lines L51 extending in the flow direction. Between the two main body fold lines L51, a substantially rectangular upper edge 55 elongated in the flow direction is formed. The first main body wall 51 and the second main body wall 52 are formed in a substantially rectangular shape that is long in the flow direction. In each main body wall 51, 52, the dimension in the approximately half flow direction on the upper edge 55 side is set longer than the dimension in the flow direction of the side wall 12 of the leg 10, and approximately half the flow direction on both sides in the step direction. The dimension is set slightly shorter than the dimension of the side wall 12 in the flow direction.

<First folding wall, second folding wall>
The pair of first folding walls 53 are connected to both ends in the flow direction of the first main body wall 51 via two side folding lines L52, and the pair of second folding walls 54 are composed of two side folding lines L52. Through the both ends of the second body wall 52 in the flow direction. The side fold line L52 is formed in approximately half of the upper edge 55 side (upper side) of the main body walls 51, 52, and is not formed in approximately half of the main body walls 51, 52 at both ends in the step direction. Accordingly, the folded walls 53 and 54 are connected to substantially the upper half of the main body walls 51 and 52. Between the two side fold lines L52, side edges 56 and 57 having a substantially rectangular shape elongated in the step direction are formed. Further, wider side grooves G are formed in the flow direction than the side edges 56 and 57 between the main body walls 51 and 52 and the folded walls 53 and 54 on both sides in the step direction than the side edges 56 and 57. Has been.

  The first folding wall 53 and the second folding wall 54 are formed in a substantially rectangular shape that is long in the step direction. The dimension in the step direction of each folding wall 53, 54 is substantially the same as the dimension in the step direction of each body wall 51, 52, and the dimension in the flow direction of each folding wall 53, 54 is the flow direction of each body wall 51, 52. It is set to about half of the dimension. Three concave portions 53A and 54A are provided in the flow direction front ends of one first folded wall 53 and one second folded wall 54. The three recesses 53A and 54A are arranged at substantially equal intervals in the step direction, and are recessed in a substantially trapezoidal shape that becomes wider in the step direction toward the inside in the flow direction. Three convex portions 53 </ b> B and 54 </ b> B are convexly provided at the flow direction front ends of the other first folded wall 53 and the other second folded wall 54. The three convex portions 53B and 54B are formed in a substantially trapezoidal shape that can be fitted into the concave portions 53A and 54A at positions corresponding to the concave portions 53A and 54A.

[Assembly of cardboard beds]
Next, the assembly process of the corrugated board bed 1 will be described with reference to FIGS. FIG. 9 is an exploded perspective view showing the leg portion 10, the spacer 20, and the rail portion 30. FIG. 10 is an exploded perspective view showing the leg portion 10 and the like, the inner plate portion 41 and the floor tray 44. FIG. 11 is an exploded perspective view showing the leg portion 10 and the like, the floor portion 40 and the head board 50. FIG. 12 is a perspective view of the leg 10 viewed from the bottom side. 13 is a cross-sectional view taken along line XIII-XIII in FIG. FIG. 14 is a perspective view showing the spacer 20 during assembly. FIG. 15 is a perspective view of the floor tray 44 as viewed from the bottom side. 16 is a cross-sectional view taken along the line XVI-XVI of FIG. FIG. 17 is a perspective view showing the head board 50 during assembly.

<Assembling legs>
The operator spreads the folded leg portion 10 and assembles the substantially rectangular parallelepiped leg portion 10. Specifically, as shown in FIG. 9 and FIG. 12, the operator bends the pair of end walls 11 and the pair of side walls 12 at a substantially right angle along a vertical folding curve L11, and opens both upper and lower end faces. The peripheral wall 10W is formed. The pair of end walls 11 face in the front-rear direction, and the pair of side walls 12 face in the left-right direction.

  Next, as shown in FIG. 12, the operator bends the pair of lower inner flaps 14 along the lateral folding curve L12 to the inside of the peripheral wall 10W. Further, the operator bends the pair of insertion pieces 16 along the insertion folding curve L13 so that the back liner 9C faces inward. Then, as shown in FIG. 13, the operator folds the pair of lower and outer flaps 15 along the lateral folding curve L12 to the inside of the peripheral wall 10W, and moves the distal ends of the pair of insertion pieces 16 to the pair of lower and inner flaps. It is inserted into 14 insertion grooves 14A. Then, the lower outer flap 15 connected to the lower end portion of the peripheral wall 10W is in a state of closing the lower end surface of the peripheral wall 10W, and the insertion piece 16 is inserted into the inner side of the peripheral wall 10W.

  Thus, the assembly of the leg portion 10 is completed. An upper surface opening 10U is opened at the upper end surface of the leg 10. In addition, the operator assembles the four leg portions 10 in the same procedure as described above.

  As shown in FIG. 9, the worker places the assembled four legs 10 with the upper surface opening 10 </ b> U facing upward and the floor engaging groove 11 </ b> A facing the left side so that the side walls 12 face each other. Arrange them in the left-right direction. Three four leg portions 10 are arranged with a first distance D1 from the right to the left, and a second distance D2 with respect to the left end surface (side wall 12) of the left leg 10. One is arranged with a gap.

<Assembly of spacer>
Next, the operator assembles the spacer 20 from the blank 20A. Specifically, as shown in FIG. 13 and FIG. 14, the operator bends the first to seventh winding walls 21 to 27 along the winding folding curve L2 in this order at a substantially right angle. The first to seventh winding walls 21 to 27 are wound into a rectangular tube shape in this order. The operator raises the pair of locking pieces 26 </ b> A of the sixth winding wall 26 and pushes them into the pair of locking holes 23 </ b> A of the third winding wall 23 before bending the seventh winding wall 27. Thereby, the state which wound in the 1st-6th winding walls 21-26 is hold | maintained, and it can prevent that the 1st-6th winding walls 21-26 are rewound. Finally, the operator bends the seventh winding wall 27 so as to face the third winding wall 23 (see FIGS. 9 and 13).

  Thus, the assembly of the spacer 20 is completed. Since the sixth winding wall 26 is sufficiently wider than the fourth winding wall 24, there is a gap (hereinafter referred to as “support groove 28”) between the third winding wall 23 and the seventh winding wall 27. (Also referred to as FIG. 9 and FIG. 13). Although details will be described later, the support groove 28 is a groove for inserting a lower portion of the head board 50.

  As shown in FIG. 9 and FIG. 13, the operator fits the assembled spacer 20 into the inside of the leg portion 10 arranged on the leftmost side. Specifically, the operator fits the lower part of the spacer 20 between the left side wall 12 and the insertion piece 16 of the left lower outer flap 15 while keeping the seventh winding wall 27 along the left side wall 12. Combine. The spacer 20 is placed on the pair of lower inner flaps 14.

<Rail assembly>
Next, an operator assembles the rail part 30 from the blank 30A. Specifically, as shown in FIG. 9, the operator bends the pair of suspended walls 32 along the rail folding line L3 at a substantially right angle. The pair of hanging walls 32 hang down from both end portions of the support wall 31, and the rail portion 30 is formed in a substantially U shape with the top and bottom reversed when viewed from the side.

  Thus, the assembly of the rail portion 30 is completed. The worker assembles three rail portions 30 in the same procedure as described above.

  As shown in FIG. 9 and FIG. 10, the operator arranges the assembled three rail portions 30 so as to span the upper portions of the four leg portions 10. Specifically, the operator arranges the three rail portions 30 at the front and rear end portions and the central portion of the four leg portions 10. The operator engages the second engagement groove 32A of the rail portion 30 with the first engagement groove 12A of the leg portion 10 while inserting the second engagement piece 32B of the rail portion 30 into the upper surface opening 10U of the leg portion 10. In this state, the first engagement piece 12B of the side wall 12 enters the inside of the inverted U-shaped rail portion 30. Further, the notch 32C at the right end of the rail portion 30 is engaged with the first engagement groove 12A of the leg 10 at the right end (see FIG. 10). The notch 32C at the left end of the rail portion 30 is in contact with a corner portion formed by the fourth winding wall 24 and the fifth winding wall 25 of the spacer 20 included in the leg portion 10. (See FIG. 13). The rail part 30 is arrange | positioned in the position which avoided the support groove | channel 28 of the spacer 20 (refer FIG. 13). As described above, the three rail portions 30 are connected to the four leg portions 10, and the four leg portions 10 are held at a predetermined interval (see FIG. 10).

<Assembling the floor>
Next, the operator assembles the inner plate portion 41 from the blanks 42A and 43A, and assembles the floor tray 44 from the blank 44A. Further, the operator assembles the floor portion 40 from the inner plate portion 41 and the floor tray 44.

(Assembly of inner plate)
As shown in FIG. 10, the operator attaches the upper inner plate 43 to the plate body 42B of the lower inner plate 42 through an adhesive. Further, the operator bends the pair of floor flaps 42C of the lower inner plate 42 downward along the inner plate folding curve L40. Thus, the assembly of the inner plate portion 41 is completed. In this state, the middle chin 9A of the upper inner plate 43 and the middle chin 9A of the lower inner plate 42 are orthogonal to each other. As the adhesive, for example, a hot melt adhesive, a synthetic resin emulsion adhesive, a double-sided tape, or the like can be used.

  As shown in FIGS. 10 and 13, the worker arranges the inner plate portion 41 on the three rail portions 30. Specifically, the operator places the inner plate portion 41 on the three rail portions 30 while inserting the left floor flap 42 </ b> C into the floor engaging groove 11 </ b> A of the left end leg portion 10. Then, the plate body 42 </ b> B of the lower inner plate 42 is placed on the upper surfaces (support walls 31) of the three rail portions 30. The floor flap 42C on the left side makes its tip end abut against the fourth winding wall 24 of the spacer 20 and overlaps the left end surface of each rail portion 30 (see FIG. 13). Further, the right floor flap 42 </ b> C overlaps the upper portion of the leg portion 10 at the right end and the right end surface of each rail portion 30.

(Assembling the floor tray)
As shown in FIG. 15, the worker bends the pair of floor end walls 47 along the second floor folding curve L42 at a substantially right angle. Further, the worker bends the four floor folded plates 48 inward along the third floor folding curve L43 at a substantially right angle.

  Subsequently, the operator bends the pair of outer surface plates 46 </ b> A upward along the first floor folding curve L <b> 41 and overlaps the outer surface plate 46 </ b> A on the outer surface of the floor folding plate 48. The operator bends the pair of floor edge portions 46B inward along the floor fold line L44, and bends the pair of inner surface plates 46C downward along the floor fold line L44. The floor edge 46 </ b> B straddles the folded floor plate 48 from the outside to the inside, and the inner surface plate 46 </ b> C overlaps the inner surface of the folded floor plate 48. That is, the outer surface plate 46A, the floor edge portion 46B, and the inner surface plate 46C are bent so as to enclose the floor folded plate 48. Further, the operator fits each floor engagement protrusion 46 </ b> D of the pair of outer surface plates 46 </ b> A into the floor surface hole 45 </ b> A of the floor surface plate 45.

  Thus, the assembly of the floor tray 44 is completed. In this state, the pair of floor side walls 46 and the pair of floor end walls 47 constitute a floor peripheral wall 44 </ b> W formed to extend downward from the peripheral edge of the floor plate 45. The floor side wall 46 is formed in a double wall structure in which the outer surface plate 46A and the inner surface plate 46C are opposed to each other with the floor folded plate 48 interposed therebetween.

  As shown in FIGS. 10, 11, and 16, the worker arranges the floor tray 44 so as to cover the inner plate portion 41. Specifically, the operator pushes the three rail portions 30 and the inner plate portion 41 into the floor peripheral wall 44W while inserting the left floor end wall 47 into the floor engagement groove 11A of the left end leg portion 10. Then, the floor surface plate 45 of the floor tray 44 overlaps the upper inner plate 43 of the inner plate portion 41, and the floor peripheral wall 44W of the floor tray 44 is fitted to the upper portions of the four leg portions 10 (see FIG. 11). Further, the floor portion 40 (the inner plate portion 41 and the floor tray 44) is disposed at a position avoiding the support groove 28 of the spacer 20 (see FIG. 16). Thus, the inner plate portion 41 is sandwiched and fixed between the rail portion 30 and the floor tray 44, and the rail portion 30 is sandwiched and fixed between the inner plate portion 41 and the leg portion 10 (FIG. 16). reference). In this state, the center chin 9A of the floor tray 44 (floor surface plate 45) is orthogonal to the center chin 9A of the upper inner plate 43 and extends parallel to the center chin 9A of the lower inner plate 42.

<Assembly of headboard>
Next, the operator assembles the head board 50 from the blank 50A. Specifically, as shown in FIGS. 11 and 17, the operator overlaps the first main body wall 51 with the pair of first folding walls 53 and the pair of side edge portions 56 along the side folding lines L52. Wrap like so. The convex portion 53 </ b> B of one first folding wall 53 is fitted into the concave portion 53 </ b> A of the other first folding wall 53. Similarly, the operator folds the pair of second folded walls 54 and the pair of side edge portions 57 so as to overlap the second main body wall 52 along the side fold line L52, and the convex portion 54B. Fit into the recess 54A. Next, the worker places the first body wall 51 (or the second body wall 52) and the upper edge 55 along the body folding line L51 so that the first folding wall 53 and the second folding wall 54 overlap each other. Wrap around. Thus, the assembly of the head board 50 is completed (see FIG. 11).

  As shown in FIGS. 11 and 16, the operator encloses the lower half of the head board 50 (the portion where the side groove G is formed) in the leg portion 10 with the first body wall 51 facing the right side. And inserted into the support groove 28 of the spacer 20. The head board 50 is supported in a standing posture through the spacer 20. The headboard 50 may be supported by the spacer 20 with the second main body wall 52 facing right.

  Thus, the cardboard bed 1 is completed (see FIG. 1). In the cardboard bed 1, for example, a mat or the like (not shown) is laid on the upper surface of the floor tray 44 (floor plate 45), and the user can lie on the mat.

  As shown in FIG. 1, in this corrugated board bed 1, two accommodation spaces S1 are formed between the three leg portions 10 arranged at the first interval D1. Precisely, an accommodation space S1 capable of accommodating the luggage B1 is formed in a range surrounded by the leg portions 10 adjacent to each other at the first interval D1 and the rail portion 30 or the floor portion 40. . Similarly, an accommodation space S2 narrower than the accommodation space S1 is formed between the leg portions 10 adjacent to each other at the second interval D2.

  In the corrugated cardboard bed 1 according to the present embodiment described above, the four leg portions 10 are arranged at predetermined intervals in the left-right direction (longitudinal direction), and the floor is placed on the three rail portions 30 installed on the four leg portions 10. By supporting the portion 40, the floor portion 40 is provided at a position away from the installation surface of the room. According to this configuration, the packages B1 and B2 can be taken in and out from the front-rear direction (short direction) with respect to the accommodation spaces S1 and S2 formed between the adjacent leg portions 10. Thus, since the luggage B1 and the like can be accommodated in the accommodation space S1 and the like, the space of the room in which the cardboard bed 1 is installed can be used effectively.

  Further, the corrugated cardboard bed 1 is assembled by bridging the rail portion 30 on the four leg portions 10 and supporting the floor portion 40 on the rail portion 30. According to this configuration, the cardboard bed 1 can be easily assembled by an intuitive process (work) in which the legs 10, the rails 30, and the floor 40 are assembled in this order.

  Further, in the corrugated cardboard bed 1 according to the present embodiment, the leg portion 10 is constituted by a so-called semi-A type cardboard box having an upper end surface opened. According to this structure, the leg part 10 with high compressive strength can be manufactured cheaply.

  Moreover, in the corrugated board bed 1 which concerns on this embodiment, it was set as the structure which maintains the lower outer flap 15 in the closed state by the insertion piece 16 being inserted inside the surrounding wall 10W. According to this structure, the adhesive tape etc. for fixing the lower outer flap 15 to the surrounding wall 10W can be omitted. Thereby, since the lower end surface of the surrounding wall 10W can be easily obstruct | occluded with the lower outer flap 15, the ease of an assembly operation | work of the cardboard bed 1 can further be improved.

  Further, according to the corrugated bed 1 according to the present embodiment, the second engagement groove 32A cut upward from the lower end of the rail portion 30 meshes with the first engagement groove 12A of the leg portion 10, so that the rail The part 30 can be securely connected to the leg part 10.

  In the corrugated cardboard bed 1 according to the present embodiment, the floor tray 44 covers the inner plate portion 41 and is fitted to the upper portions of the four leg portions 10. According to this structure, since the rail part 30 and the inner-plate part 41 are arrange | positioned inside the floor tray 44 (floor peripheral wall 44W), it can prevent that the inner-plate part 41 falls off from the rail part 30 top. . Moreover, it can prevent that the rail part 30 isolate | separates from the leg part 10, and can suppress the rattling of the leg part 10. FIG. Further, since the floor plate 45 of the floor tray 44 overlaps the inner plate portion 41, the strength of the floor portion 40 can be improved.

  Further, according to the cardboard bed 1 according to the present embodiment, the upper inner plate 43 is disposed so as to overlap the upper surface of the plate body 42B of the lower inner plate 42, and the floor tray 44 (floor surface plate 45) is disposed on the inner plate portion 41 ( By covering the upper inner plate 43), the floor portion 40 having a triple wall structure can be formed. Thereby, the intensity | strength of the floor part 40 where a user lies can be improved.

  Further, according to the cardboard bed 1 according to the present embodiment, since the leg portion 10 has a structure into which the headboard 50 can be inserted, the headboard 50 can be attached and detached as required by the user.

  Further, in the corrugated cardboard bed 1 according to the present embodiment, the rail portion 30 and the floor portion 40 are arranged at positions avoiding the support grooves 28 of the spacer 20 in order to allow insertion of the head board 50. The head board 50 is supported by the leg 10 via the spacer 20. According to this configuration, for example, even if the shape of the headboard 50 (or the leg portion 10) is changed, the design of the spacer 20 may be changed according to the change, and the design up to the leg portion 10 (or the headboard 50) is also possible. There is no need to change. That is, it is possible to flexibly cope with a design change of the headboard 50, the leg 10 and the like at a low cost.

  In the corrugated cardboard bed 1 according to the first embodiment, the four legs 10 are arranged, but the present invention is not limited to this. The number of leg portions 10 may be two, three, or four or more. That is, it is sufficient that at least two or more leg portions 10 are arranged at intervals.

[Second Embodiment: Cardboard Bed]
Next, with reference to FIG. 18, the cardboard bed 2 according to the second embodiment will be described. FIG. 18 is an exploded perspective view showing the cardboard bed 2. In the following description, the same or corresponding components as those of the corrugated cardboard bed 1 according to the first embodiment are denoted by the same reference numerals, and descriptions similar to or corresponding to those of the corrugated cardboard bed 1 are omitted.

  In the corrugated cardboard bed 1 according to the first embodiment, the rail part 30 and the floor part 40 are integrally formed in the left-right direction (longitudinal direction), but in the corrugated cardboard bed 2 according to the second embodiment, the rail part 60 is provided. And the floor portion 70 is different in that it is divided in the longitudinal direction.

  The rail portion 60 includes two divided rail portions 65 arranged in a line in the left-right direction. The right split rail 65 is installed between the two legs 10, and the left split rail 65 is extended over the three legs 10. The floor portion 70 (inner plate portion 71 (lower inner plate 72, upper inner plate 73) and floor tray 74 (floor surface plate 75, floor peripheral wall 74W)) is arranged in a line in the left-right direction corresponding to the plurality of divided rail portions 65. It includes two divided floor portions 76 arranged side by side.

  Even with the corrugated cardboard bed 2 according to the second embodiment described above, the same actions and effects as the corrugated cardboard bed 1 according to the first embodiment can be obtained. In addition, the divided rail portion 65 and the divided floor portion 76 are shorter in the longitudinal direction than the non-divided rail portion 30 and the floor portion 40, so that the corrugated cardboard sheets constituting the divided rail portion 65 and the divided floor portion 76 are made. The area can be reduced. Thereby, the transportation cost of the rail part 60 or the floor part 70 can be reduced. Moreover, since the rail part 60 and the floor part 70 are divided and become easy to carry, the assembling work of the cardboard bed 2 in a narrow room can also be performed efficiently.

  In the corrugated cardboard bed 2 according to the second embodiment, the rail portion 60 is divided into two divided rail portions 65 and the floor portion 70 is divided into two divided floor portions 76. It is not limited. The rail part 60 may be divided into three or more divided rail parts 65, and the floor part 70 may be divided into three or more divided floor parts 76. In the corrugated cardboard bed 2, it is necessary that three or more leg portions 10 be arranged.

  Further, in the corrugated cardboard bed 2 according to the second embodiment, the joints of the two split rail portions 65 and the like are set to the second leg portion 10 from the right, but the present invention is not limited to this. For example, the joint of the two divided rail portions 65 and the like may be set to the third leg portion 10 from the right. That is, the split rail part 65 etc. should just be constructed by the at least two leg part 10 adjacent.

  In the corrugated boards 1 and 2 according to the first and second embodiments, the three leg portions 10 are arranged at the first interval D1, and the left end leg portion 10 is arranged at the second interval D2. However, the present invention is not limited to this. For example, all the leg portions 10 may be arranged at the first interval D1, or only two adjacent leg portions 10 may be arranged at the first interval D1. Moreover, the adjacent leg part 10 may be arrange | positioned by the space | interval more than 1st space | interval D1. That is, the arrangement interval of the leg portions 10 can be freely set according to the size of the luggage to be accommodated.

  Moreover, in the cardboard beds 1 and 2 according to the first and second embodiments, the lower outer flap 15 is closed by the insertion piece 16 being inserted inside the peripheral wall 10W, but the present invention is not limited to this. . For example, the insertion piece 16 may be omitted, and an adhesive tape may be attached to the butted portion of the pair of lower and outer flaps 15, or the pair of lower and outer flaps 15 may be bonded to the pair of lower and inner flaps 14 with an adhesive. May be.

  Moreover, in the corrugated cardboard beds 1 and 2 according to the first and second embodiments, the three rail portions 30 and 60 are provided, but the present invention is not limited to this. Two or more rail parts 30 and 60 should just be provided.

  Moreover, in the corrugated cardboard beds 1 and 2 according to the first and second embodiments, the floor portions 40 and 70 have a triple wall structure, but the present invention is not limited to this. For example, the inner plate portions 41 and 71 may be omitted from the floor portions 40 and 70. For example, the lower inner plates 42 and 72 or the upper inner plates 43 and 73 may be omitted from the inner plate portion 41.

  Further, in the corrugated beds 1 and 2 according to the first and second embodiments, the pair of floor flaps 42C are connected to the lower inner plate 42 of the inner plate portion 41. However, the present invention is not limited to this, and the floor flap 42C is not limited thereto. May be omitted. Further, although the lower inner plate 42 and the upper inner plate 43 are bonded, the upper inner plate 43 may be simply stacked on the lower inner plate 42 without bonding.

  Moreover, in the corrugated cardboard beds 1 and 2 according to the first and second embodiments, the headboard 50 is provided, but the present invention is not limited to this. The head board 50 may be omitted. In this case, the spacer 20 is also omitted, and the rail portion 30 and the floor portion 40 are preferably spanned over the entire area of all the leg portions 10.

  Further, in the cardboard beds 1 and 2 according to the first and second embodiments, the spacer 20, the rail portion 30, and the floor tray 44 are formed of double-sided cardboard sheets, and the leg portion 10, the inner plate portion 41, and the headboard 50 are provided. Although formed with a double-sided cardboard sheet, the present invention is not limited to this. The type and thickness of the corrugated cardboard sheets constituting the plurality of parts may be appropriately changed according to various conditions such as load bearing performance and use environment.

  In addition, description of the said embodiment shows the one aspect | mode of the cardboard bed concerning this invention, Comprising: The technical scope of this invention is not limited to the said embodiment.

1, 2 Corrugated bed 10 Leg 10W Peripheral wall 12A First engagement groove 15 Lower outer flap (flap)
16 Insertion piece 20 Spacer 28 Support groove 30, 60 Rail portion 32A Second engagement groove 40, 70 Floor portion 41, 71 Inner plate portion 42, 72 Lower inner plate 42B Plate body 42C Floor flap 43, 73 Upper inner plate 44 , 74 Floor tray 44W, 74W Floor peripheral wall 45, 75 Floor plate 50 Headboard 65 Dividing rail section 76 Dividing floor section B1, B2 Luggage S1, S2 Storage space

Claims (9)

A cardboard bed (1, 2) made of cardboard,
A plurality of legs (10) formed in a cylindrical shape and spaced apart in the longitudinal direction;
A plurality of rail portions (30, 60) that are bridged and connected to the upper portions of the plurality of leg portions;
A floor portion (40, 70) supported by the plurality of rail portions,
Storage spaces (S1, S2) capable of storing luggage (B1, B2) are formed in a range surrounded by the leg portions adjacent to each other and the rail portion or the floor portion. Corrugated cardboard bed. The legs are
A peripheral wall (10 W) formed in a rectangular tube shape;
The cardboard bed according to claim 1, further comprising: a flap (15) provided continuously to a lower end portion of the peripheral wall and closing a lower end surface of the peripheral wall.   The insertion piece (14A) inserted in the inside of the said surrounding wall in the state which closed the lower end surface of the said surrounding wall with the said flap is connected with the front-end | tip part of the said flap. Cardboard beds. The leg portion has a first engagement groove (12A) cut downward from the upper end,
The said rail part has a 2nd engagement groove | channel (32A) cut into the upper direction from a lower end, and meshes | engages with a said 1st engagement groove | channel, The Claim 1 thru | or 3 characterized by the above-mentioned. Corrugated bed. The floor is
Inner plate portions (41, 71) placed on the upper surfaces of the plurality of rail portions;
Floor plates (45, 75) that overlap the inner plate portion, and floor peripheral walls (44W, 74W) that are formed to extend downward from the peripheral portion of the floor plate and fit to the upper portions of the plurality of legs. 5. A corrugated cardboard bed according to any one of claims 1 to 4, characterized in that it comprises a floor tray (44, 74) having The inner plate portion is
A plate main body (42B) placed on the upper surfaces of the plurality of rail portions, and a pair of floors that are connected to both longitudinal ends of the plate main body and bent downward to overlap the end surfaces of the plurality of rail portions. A lower inner plate (42, 72) having a flap (42C);
The cardboard bed according to claim 5, further comprising an upper inner plate (43, 73) disposed on the upper surface of the plate body of the lower inner plate.   The headboard (50) further inserted in the inside of the said leg part arrange | positioned at the outermost end of a longitudinal direction and extended upwards from the upper surface of the said floor part is characterized by the above-mentioned. A cardboard bed according to any one of 6 to 6. Two or more of the plurality of legs are arranged at a first interval from one longitudinal direction to the other, and are shorter than the first spacing with respect to the other end surface of the other leg in the longitudinal direction. One is arranged with an interval of 2,
A spacer (20) including a support groove (28) for inserting a lower portion of the headboard is fitted inside the leg portion arranged at the other end in the longitudinal direction,
The cardboard bed according to claim 7, wherein the rail portion and the floor portion are disposed at a position avoiding the support groove of the spacer to allow insertion of the headboard. Three or more legs are arranged,
The rail part (60) includes a plurality of divided rail parts (65) arranged in a line in the longitudinal direction,
The floor portion (70) includes a plurality of divided floor portions (76) arranged in a line in a longitudinal direction corresponding to the plurality of divided rail portions,
The cardboard bed according to any one of claims 1 to 8, wherein the divided rail portion is constructed on at least two adjacent leg portions.

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