Bed

Abstract

To provide a bed for enabling extending / contracting in a short time.SOLUTION: A bed is extendable / contractable in a longitudinal direction. The bed includes: a plurality of longitudinal plates; a horizontal plate to be connected to upper ends or lower ends of the longitudinal plates; first side plates; second side plates; and connection parts 31 for connecting the first side plates to the second side plates. The connection part includes: grooves or holes formed in one of the first side plate and the second side plate; and fitting parts formed in the other one of the first side plate and the second side plate so as to be fitted to the grooves or the holes. In the horizontal plate, ridge-folding parts to be bent in a ridge-folding shape and valley-folding parts to be bent in a valley-folding shape are alternately formed in a longitudinal direction. The first side plate and the second side plate are respectively changeable at an angle with respective to the longitudinal plate.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a bed.

Background Art

[0002] Patent Document 1 discloses a folding simple bed. The folding simple bed is configured by combining a plurality of units. Each unit is made of reinforced cardboard.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Considerable time is required to assemble the folding simple bed described in Patent Document 1. In one aspect of the present disclosure, it is preferable to provide a bed that can be expanded and contracted in a short time.

Means for Solving the Problems

[0005] One aspect of the present disclosure is a bed that is expandable and contractible in the longitudinal direction. The bed includes a plurality of vertical plates arranged at intervals along the longitudinal direction, a horizontal plate connected to the upper end or the lower end of the vertical plates and extending along the longitudinal direction, a first side plate connected to the end portion of the vertical plates in the lateral direction and extending in one direction with respect to the longitudinal direction, a second side plate connected to the end portion of the vertical plates in the lateral direction and extending in the direction opposite to the one direction with respect to the longitudinal direction, and a connecting portion that connects the first side plate and the second side plate.

[0006] The connecting portion includes a groove or a hole formed in one of the first side plate and the second side plate, and a fitting portion formed in the other of the first side plate and the second side plate and fitted into the groove or the hole. On the horizontal plate, a mountain fold portion capable of mountain folding and a valley fold portion capable of valley folding are alternately formed along the longitudinal direction. The first side plate and the second side plate are each configured to be able to change the angle with respect to the vertical plate.

[0007] A bed according to one aspect of the present disclosure can be expanded and contracted in a short time.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying Out the Invention

[0009] Exemplary embodiments of the present disclosure will be described with reference to the drawings. 1. Configuration of the bed 1 The configuration of the bed 1 will be described based on FIGS. 1 to 7. The bed 1 is made of cardboard. As shown in FIG. 1, the bed 1 includes a main body portion 3 and a top plate 5. The bed 1 is stretchable in the direction L shown in FIGS. 1 to 3. The bed 1 shown in FIG. 1 is in a state of being extended in the direction L (hereinafter referred to as the extended state). When in the extended state, the basic shape of the bed 1 is a rectangular parallelepiped. When in the extended state, the longitudinal direction of the bed 1 coincides with the direction L.

[0010] The main body portion 3 is stretchable in the direction L. FIG. 2 shows the main body portion 3 in the extended state. When in the extended state, the basic shape of the main body portion 3 is a rectangular parallelepiped. When in the extended state, the longitudinal direction of the main body portion 3 coincides with the direction L.

[0011] The top plate 5 is a rectangular plate-like member. When using the bed 1, as shown in FIG. 1, the top plate 5 is placed on the main body portion 3. The top plate 5 is removable from the main body portion 3. As shown in FIGS. 2 to 4, the main body portion 3 includes a plurality of vertical plates 7a, 7b, 7c, 7d, 7e, 7f, 7g (hereinafter sometimes referred to as vertical plates 7a to 7g). The plurality of vertical plates 7a to 7g are arranged at intervals along the direction L. The vertical plates 7a to 7g are each a rectangular plate-like member. The normal lines of the vertical plates 7a to 7g are parallel to the direction L. The vertical plates 7a to 7g have the same shape and size.

[0012] As shown in FIGS. 2 and 3, the main body portion 3 includes a horizontal plate 9. As shown in FIG. 2, the horizontal plate 9 is connected to the upper ends 11 of the vertical plates 7a to 7g. Note that the upper end 11 is the upper end among the ends of the vertical plates 7a to 7g in a state where the bed 1 is placed on a horizontal plane such that the horizontal plate 9 is on the upper side (hereinafter referred to as the standard state). Hereinafter, unless otherwise specified, the state of the bed 1 is the standard state.

[0013] The horizontal plate 9 extends along the direction L. The horizontal plate 9 is a plate-shaped member. The horizontal plate 9 is stretchable in the direction L. When in the extended state and the standard state, the normal line of the horizontal plate 9 is parallel to, for example, the vertical direction. When in the extended state, the shape of the horizontal plate 9 is rectangular.

[0014] As shown in FIGS. 2 and 3, the horizontal plate 9 includes a plurality of mountain-fold portions 12. The mountain-fold portion 12 is a fold line where mountain folding is possible. Mountain folding means that in the standard state, the mountain-fold portion 12 is folded into a mountain shape. The mountain-fold portion 12 extends in a direction orthogonal to the direction L. The plurality of mountain-fold portions 12 are each located in the middle of two adjacent upper ends 11.

[0015] The horizontal plate 9 can be valley-folded at the upper end 11. Valley folding means that in the standard state, the upper end 11 is folded into a valley shape. The upper end 11 corresponds to the valley-fold portion. In the horizontal plate 9, the mountain-fold portion 12 and the upper end 11 are alternately formed along the direction L.

[0016] As shown in FIGS. 2 to 4, the main body portion 3 includes a plurality of first side plates 13 and a plurality of second side plates 15. Both the first side plate 13 and the second side plate 15 are rectangular plate-shaped members. As shown in FIGS. 2 to 4, the first side plate 13 is connected to the end portions 17 of the vertical plates 7a to 7f. The end portion 17 is, in the standard state, the end portion in the lateral direction among the end portions of the vertical plates 7a to 7g. The second side plate 15 is connected to the end portion 17 of the vertical plates 7b to 7f. Therefore, the first side plate 13 and the second side plate 15 are connected to the end portion 17 of the vertical plates 7b to 7f. Only the first side plate 13 is connected to the vertical plate 7a. Only the second side plate 15 is connected to the vertical plate 7f. As shown in FIG. 4, the first side plate 13 and the second side plate 15 are provided on both sides in the width direction of the main body portion 3. The width direction is a horizontal direction orthogonal to the direction L.

[0017] When in the extended state, the first side plate 13 extends from the end 17 in the first direction D1 shown in FIG. 4. In the standard state, the first direction D1 belongs to the horizontal plane. The first direction D1 and the direction L form an acute angle. When in the extended state, the second side plate 15 extends from the end 17 in the second direction D2 shown in FIG. 4. In the standard state, the second direction D2 belongs to the horizontal plane. The second direction D2 and the direction L form an acute angle.

[0018] Among the first direction D1, the component D1L parallel to the direction L and, among the second direction D2, the component D2L parallel to the direction L are in opposite directions. That is, the first direction D1 extends in one direction with respect to the direction L, and the second direction D2 extends in the direction opposite to the said one with respect to the direction L.

[0019] As shown in FIG. 4, let the angle formed by the first side plate 13 and the vertical plates 7a - 7f be α. The first side plate 13 can be bent with respect to the vertical plates 7a - 7f in the direction in which the angle α changes. Also, as shown in FIG. 4, let the angle formed by the second side plate 15 and the vertical plates 7b - 7g be β. The second side plate 15 can be bent with respect to the vertical plates 7b - 7g in the direction in which the angle β changes. That is, the angle α and the angle β can be changed.

[0020] As shown in FIGS. 2 - 4, the main body 3 is configured by arranging a plurality of unit units 19a, 19b, 19c, 19d, 19e, 19f (hereinafter sometimes referred to as unit units 19a - 19f) along the direction L. The unit units 19a - 19f are adhered to each other.

[0021] The unit units 19a - 19f in the unfolded state have the form shown in FIG. 5. The unit units 19a - 19f in the assembled state have the form shown in FIG. 6. The unit units 19a - 19f each include a unit horizontal plate 21, a unit vertical plate 23, a unit vertical plate 25, two first side plates 13, and two second side plates 15.

[0022] When the unit units 19a to 19f are assembled, they have a box-shaped form in which the unit vertical plates 23, the unit vertical plate 25, the first side plate 13, and the second side plate 15 are erected on the four sides of the unit horizontal plate 21. The unit vertical plate 23 and the unit vertical plate 25 face each other. The combination of the first side plate 13 and the second side plate 15 faces the combination of the first side plate 13 and the second side plate 15 on the opposite side. The fold at the boundary between the unit vertical plate 23 and the second side plate 15 is the end 17. The fold at the boundary between the unit vertical plate 25 and the first side plate 13 is the end 17.

[0023] The unit horizontal plate 21 has a valley fold 12. The valley fold 12 is located at a position that bisects the unit horizontal plate 21. The fold at the boundary between the unit horizontal plate 21 and the unit vertical plate 23 is the upper end 11. Also, the fold at the boundary between the unit horizontal plate 21 and the unit vertical plate 25 is the upper end 11.

[0024] The first side plate 13 has a first groove 27. In the standard state, the first groove 27 is a groove that extends downward from the upper end of the first side plate 13. The second side plate 15 has a second groove 29. In the standard state, the second groove 29 is a groove that extends upward from the lower end of the second side plate 15.

[0025] As shown in FIG. 6, when the second side plate 15 is inserted into the first groove 27 and the first side plate 13 is inserted into the second groove 29, the first side plate 13 and the second side plate 15 are connected. The portion where the first side plate 13 and the second side plate 15 are connected is defined as the connecting portion 31. The first groove 27 and the second groove 29 are at the connecting portion 31. The first groove 27 corresponds to the groove formed in the first side plate 13. Among the second side plate 15, the portion inserted into the first groove 27 corresponds to the fitting portion. Note that inserting corresponds to fitting. Also, the second groove 29 corresponds to the groove formed in the second side plate 15. Among the first side plate 13, the portion inserted into the second groove 29 corresponds to the fitting portion.

[0026] As shown in FIG. 4, let the angle formed by the first side plate 13 and the second side plate 15 be γ. The first side plate 13 and the second side plate 15 are rotatable so that the angle γ changes. As shown in FIGS. 4 to 6, the unit vertical plate 23 is provided with two grooves 33. In the standard state, the groove 33 is a groove extending upward from the lower end of the unit vertical plate 23.

[0027] The unit units 19a to 19f are arranged in order along the direction L as unit units 19a, 19b, 19c, 19d, 19e, and 19f. The unit units 19a, 19c, and 19e are arranged such that the unit vertical plate 25 is on the side of the vertical plate 7a and the unit horizontal plate 21 is on the upper side. The unit units 19b, 19d, and 19f are arranged such that the unit vertical plate 25 is on the side of the vertical plate 7g and the unit horizontal plate 21 is on the upper side. The set of the unit horizontal plates 21 in the unit units 19a to 19f constitutes the horizontal plate 9.

[0028] As shown in FIG. 8, the vertical plate 7a is the unit vertical plate 25 of the unit unit 19a. As shown in FIG. 8, the vertical plate 7b is formed by adhering the unit vertical plate 23 of the unit unit 19a and the unit vertical plate 23 of the unit unit 19b. The vertical plate 7b is provided with two grooves 33.

[0029] The vertical plate 7c is formed by adhering the unit vertical plate 25 of the unit unit 19b and the unit vertical plate 25 of the unit unit 19c. The vertical plate 7d is formed by adhering the unit vertical plate 23 of the unit unit 19c and the unit vertical plate 23 of the unit unit 19d. The vertical plate 7d is provided with two grooves 33.

[0030] The vertical plate 7e is formed by adhering the unit vertical plate 25 of the unit unit 19d and the unit vertical plate 25 of the unit unit 19e. The vertical plate 7f is formed by adhering the unit vertical plate 23 of the unit unit 19e and the unit vertical plate 23 of the unit unit 19f. The vertical plate 7f is provided with two grooves 33. The vertical plate 7g is the unit vertical plate 25 of the unit unit 19f.

[0031] As shown in FIGS. 3, 4, and 7, the main body 3 includes a plurality of partition plates 35a, 35b, 35c, 35d, 35e, 35f (hereinafter sometimes referred to as partition plates 35a to 35f). As shown in FIG. 7, the basic form of the partition plates 35a to 35f is a rectangular plate member. The partition plates 35a to 35f are provided with a groove 37 at the center. The groove 37 extends in a direction orthogonal to the longitudinal direction of the partition plates 35a to 35f. In the standard state, the groove 37 is a groove extending downward from the upper end of the partition plates 35a to 35f.

[0032] As shown in FIG. 7, creases 39, 41, 43, 45, 47, 49 are formed in the partition plates 35a to 35f. The creases 39, 41, 43, 45, 47, 49 are each parallel to the groove 37. In the partition plates 35a to 35f, the portion on the end side of the crease 39 is the adhesive margin 51. In the partition plates 35a to 35f, the portion on the end side of the crease 49 is the adhesive margin 53.

[0033] As shown in FIGS. 4 and 8, the partition plates 35a, 35b are respectively inserted into the groove 33 of the vertical plate 7b. The vertical plate 7b is inserted into the groove 37 of the partition plates 35a, 35b. The adhesive margin 51 of the partition plates 35a, 35b is adhered to the vertical plate 7a. The adhesive margin 53 of the partition plates 35a, 35b is adhered to the vertical plate 7c.

[0034] The partition plates 35c to 35f are also attached in the same manner as the partition plates 35a, 35b. That is, as shown in FIG. 4, the partition plates 35c, 35d are respectively inserted into the groove 33 of the vertical plate 7d. The vertical plate 7d is inserted into the groove 37 of the partition plates 35c, 35d. The adhesive margin 51 of the partition plates 35c, 35d is adhered to the vertical plate 7c. The adhesive margin 53 of the partition plates 35c, 35d is adhered to the vertical plate 7e.

[0035] Also, as shown in FIG. 4, the partition plates 35e, 35f are respectively inserted into the groove 33 of the vertical plate 7f. The vertical plate 7f is inserted into the groove 37 of the partition plates 35e, 35f. The adhesive margin 51 of the partition plates 35e, 35f is adhered to the vertical plate 7e. The adhesive margin 53 of the partition plates 35e, 35f is adhered to the vertical plate 7g.

[0036] 2. Functions of the bed 1 The functions of the bed 1 will be described based on FIGS. 2 to 10. When using the bed 1, as shown in FIG. 2, the state of the bed 1 is the extended state. When in the extended state, the angles α and β shown in FIG. 4 are values close to 90 degrees, and the angle γ is a value close to 180 degrees. Also, when in the extended state, as shown in FIGS. 2 and 3, the horizontal plate 9 is in a flat state. That is, the horizontal plate 9 is not mountain-folded at the mountain-fold portion 12 and is not valley-folded at the upper end 11. When in the extended state, the mutual intervals between the vertical plates 7a to 7g are widened.

[0037] Also, when in the extended state, as shown in FIG. 4, the partition plates 35a to 35f are not folded at the folds 41, 43, 45, 47. When storing or transporting the bed 1, as shown in FIGS. 9 to 10, the bed 1 can be set in a state of being contracted in the direction L (hereinafter referred to as the contracted state). When in the contracted state, the mutual intervals between the vertical plates 7a to 7g are reduced.

[0038] When in the contracted state, as shown in FIGS. 9 to 10, the first side plate 13 and the second side plate 15 are folded in a bellows shape. That is, when in the contracted state, the first side plate 13 and the second side plate 15 are valley-folded at the connecting portion 31 and are mountain-folded at the end portion 17. When in the contracted state, the angles α, β, γ shown in FIG. 4 are respectively acute angles.

[0039] Also, when in the contracted state, as shown in FIG. 9, the horizontal plate 9 is folded in a bellows shape. That is, when in the contracted state, the horizontal plate 9 is mountain-folded at the mountain-fold portion 12 and is valley-folded at the upper end 11.

[0040] Also, when in the contracted state, as shown in FIG. 10, the partition plates 35a to 35f are folded in a bellows shape. That is, when in the contracted state, the folds 41, the folds 43 and 45, and the fold 47 are folded in opposite directions alternately.

[0041] If a force in the compressing direction in the direction L is applied to the bed 1 in the extended state, the state of the bed 1 can be changed to the compressed state. Further, if a force in the extending direction in the direction L is applied to the bed 1 in the compressed state, the state of the bed 1 can be changed to the extended state.

[0042] 3. Effects exerted by the bed 1 (3-1) By simply applying a force in the compressing direction in the direction L to the bed 1 in the extended state, the state of the bed 1 can be changed to the compressed state. Further, by simply applying a force in the extending direction in the direction L to the bed 1 in the compressed state, the state of the bed 1 can be changed to the extended state. Therefore, the bed 1 can be expanded and contracted in a short time. (3-2) The bed 1 includes a connecting portion 31 where the first side plate 13 and the second side plate 15 are connected. In the connecting portion 31, the second side plate 15 is inserted into the first groove 27 and the first side plate 13 is inserted into the second groove 29. By providing the connecting portion 31, the first side plate 13 and the second side plate 15 can rotate so that the angle γ changes. As a result, the bed 1 can achieve expansion and contraction with a simple structure.

[0043] (3-3) The bed 1 includes partition plates 35a to 35f. The partition plates 35a to 35f are inserted into the grooves 33 of the vertical plates 7b, 7d, 7f and extend along the direction L. By providing the partition plates 35a to 35f, the bed 1 has even higher compressive strength in the vertical direction.

[0044] (3-4) The bed 1 is made of cardboard. Therefore, it is easy to manufacture the bed 1. 4. Other embodiments As described above, the embodiments of the present disclosure have been described. However, the present disclosure is not limited to the above-described embodiments and can be implemented with various modifications.

[0045] (4-1) The horizontal plate 9 may be connected to the lower ends of the vertical plates 7a to 7g. (4-2) The bed 1 may be made of a material other than cardboard. (4-3) The number of the unit units 19a to 19f provided in one bed 1 may be a number other than 6.

[0046] (4-4) The bed 1 may not be constituted by the unit units 19a to 19f. (4-5) The form of the connecting portion 31 may be other forms. For example, as shown in FIG. 11 or FIG. 12, the first side plate 13 is provided with a slit hole 55. The second side plate 15 is provided with a protrusion 57 that can be inserted into the slit hole 55. By inserting the protrusion 57 into the slit hole 55, the first side plate 13 and the second side plate 15 are connected. The slit hole 55 and the protrusion 57 constitute the connecting portion 31. The slit hole 55 corresponds to a groove or a hole formed in the first side plate 13. The protrusion 57 corresponds to a fitting portion. The slit hole 55 is formed, for example, at the center of the first side plate 13 in the vertical direction. The slit hole 55 does not reach, for example, the end of the first side plate 13. The slit hole 55 extends, for example, in the vertical direction. The protrusion 57 has, for example, a length similar to the length of the slit hole 55. The protrusion 57 has, for example, a groove 59 at its root portion. The groove 59 may be provided on both the upper side and the lower side of the protrusion 57 as shown in FIG. 11, or may be provided on one of the upper side and the lower side of the protrusion 57 as shown in FIG. 12. When the protrusion 57 is inserted into the slit hole 55, at least one of the lower end and the upper end of the slit hole 55 is inserted into the groove 59. In this case, the protrusion 57 is difficult to come out of the slit hole 55. Also, for example, the protrusion 57 has a shape that spreads more on the tip side than on the root side. When the first side plate 13 and the second side plate 15 are connected, the tip-side portion of the protrusion 57 passes through the slit hole 55. By having a shape that spreads more on the tip side than on the root side, the protrusion 57 is difficult to come out of the slit hole 55. Also, the second side plate 15 may be provided with the slit hole 55, and the first side plate 13 may be provided with the protrusion 57. (4-6) In each of the above embodiments, the functions of one component may be shared among a plurality of components, or the functions of a plurality of components may be performed by one component. Also, a part of the configuration of each of the above embodiments may be omitted. Further, at least a part of the configuration of each of the above embodiments may be added to, replaced with, etc., the configuration of other above embodiments.

[0047] (4-7) In addition to the bed 1 described above, the present disclosure can also be realized in various forms such as a system having the bed 1 as a component, a method for manufacturing a bed, a bed making kit, etc.

Explanation of Reference Numerals

[0048] 1... Bed, 3... Main body, 5... Top plate, 7a - 7g... Vertical plates, 9... Horizontal plate, 11... Upper end, 12... Gable fold, 13... First side plate, 15... Second side plate, 17... End, 19a - 19f... Unit units, 21... Unit horizontal plate, 23, 25... Unit vertical plates, 27... First groove, 29... Second groove, 31... Connecting part, 33... Groove, 35a - 35f... Partition plates, 37... Groove, 39, 41, 43, 45, 47, 49... Fold lines, 51, 53... Glue margins

Claims

1. A bed that is stretchable in the longitudinal direction, a plurality of vertical plates arranged at intervals along the longitudinal direction, a horizontal plate connected to the upper end or the lower end of the vertical plate and extending along the longitudinal direction, a first side plate connected to the end of the vertical plate in the lateral direction and extending in one direction with respect to the longitudinal direction, a second side plate connected to the end of the vertical plate in the lateral direction and extending in the direction opposite to the one with respect to the longitudinal direction, a connecting portion connecting the first side plate and the second side plate, comprising: The connecting portion includes a groove or a hole formed in one of the first side plate and the second side plate, and a fitting portion formed in the other of the first side plate and the second side plate and fitted into the groove or the hole. On the horizontal plate, a mountain-foldable mountain-fold portion and a valley-foldable valley-fold portion are alternately formed along the longitudinal direction. The first side plate and the second side plate are each configured to be able to change the angle with respect to the vertical plate. The bed is configured by arranging a plurality of unit units along the longitudinal direction. Each of the unit units includes two of the vertical plates, the horizontal plate connected to the upper end or the lower end of each of the two vertical plates, two of the first side plates respectively connected to both ends of one of the two vertical plates in the lateral direction, and two of the second side plates respectively connected to both ends of the other of the two vertical plates in the lateral direction. Bed.

2. The bed according to claim 1, a first groove extending downward from the upper end of the first side plate, a second groove extending upward from the lower end of the second side plate, further comprising: In the connecting portion, the second side plate is fitted into the first groove and the first side plate is fitted into the second groove, whereby the first side plate and the second side plate are connected. Bed.

3. The bed according to claim 1 or 2, a part of the vertical plate is provided with a groove, further comprising a partition plate inserted into the groove and extending along the longitudinal direction, on the partition plate, a mountain-foldable mountain-fold portion and a valley-foldable valley-fold portion are alternately formed along the longitudinal direction. Bed.

4. The bed according to any one of claims 1 to 3, composed of cardboard. Bed.

Images