Bed and bed set

Abstract

To provide a bed having a space secured wide so as to be usable by a user on the bed even when a space on the bed is closed.SOLUTION: This bed comprises: a floor plate rectangular in a plan view; a plurality of columns erected at at least four corners of the floor plate; a first wall erected on one side of the floor plate in a longitudinal direction; a second wall erected on the other side of the floor plate in the longitudinal direction; a ceiling wall provided in parallel with the floor plate; an opening provided between the floor plate and the ceiling wall on one side of the floor plate in a width direction; a guide rail provided along the inner wall surface of at least one of the first wall, the second wall, and the ceiling wall inside the first wall, the second wall, and the ceiling wall; and a shutter curtain that slides as a whole along the guide rail to open / close the opening.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a bed and a bed set equipped with an openable / closable shutter. [Background technology]

[0002] Patent Document 1 discloses a bedding auxiliary device in which a bellows-shaped shutter is provided around the space where bedding is placed so as to surround the space. In the bedding auxiliary device of Patent Document 1, one end of the shutter is fixed to a wall panel of the bedding auxiliary device, and the other end of the shutter moves relative to the one end of the shutter, thereby closing the shutter and forming a private room. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3120474 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration disclosed in Patent Document 1, the shutter is accordion-shaped and one end is fixed to the wall panel, so when the shutter is opened to allow the user to enter and exit the space where the bedding is placed, the contracted shutter is folded and protrudes inward, reducing the space available for the user, which may impair the usability of the bedding assistance device.

[0005] Therefore, one aspect of the present disclosure aims to provide a bed and a bed set that ensures a large space inside the shutter even when the space above the bed is opened. [Means for solving the problem]

[0006] The bed of the present disclosure comprises a floor board that is rectangular in plan view, a plurality of pillars erected at at least four corners of the floor board, a first wall erected on one longitudinal side of the floor board, a second wall erected on the other longitudinal side of the floor board, a ceiling wall that is arranged above the floor board and parallel to the floor board, an opening that is arranged on one widthwise side of the floor board and between the floor board and the ceiling wall, guide rails that are arranged inside the first wall, the second wall, and the ceiling wall and along the inner wall surface of at least one of the first wall, the second wall, and the ceiling wall, and a shutter curtain that opens and closes the opening by sliding entirely along the guide rails. [Effects of the Invention]

[0007] According to the present disclosure, the shutter curtain opens and closes the opening by sliding entirely along the guide rail, so the shutter curtain itself does not expand or contract when opening or closing. Therefore, even when the shutter curtain is open, the volume occupied by the shutter curtain is kept small, ensuring a large space available for the user. This makes it possible to provide a user-friendly bed and bed set. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a bed set 1 according to a first embodiment. [Figure 2] FIG. 2 is a perspective view of one bed in the bed set of FIG. 1. [Figure 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] 3 is an explanatory diagram for explaining a shutter member that constitutes the shutter of FIG. 2.

[0023] FIG. [Figure 6] FIG. 3 is a perspective view of a modified example of the bed of FIG. 2. [Figure 7] FIG. 10 is a perspective view of a bed according to a second embodiment. [Figure 8] FIG. 8 is a cross-sectional view taken along line VII-VII in FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment will be described with reference to the drawings. In the following description, the direction from the side where the head of the bedding placed inside the bed to the side where the foot is placed will be referred to as the longitudinal direction. The direction toward the outside of the width direction of the bedding, which is perpendicular to the longitudinal direction, will be referred to as the lateral direction. The direction in which the beds are stacked will be referred to as the up-down direction.

[0010] (First embodiment) 1 is a perspective view of a bed set 1 according to the first embodiment. In this embodiment, the bed set 1 is configured by three beds 2, namely, beds 2a, 2b, and 2c, stacked one on top of the other in the vertical direction.

[0011] As shown in FIG. 1 , the bed set 1 includes pillars 6 as support columns supporting three beds 2, and each pillar 6 is connected to one of the three beds 2. The term "connected" includes mechanical connections such as screws, welding, and adhesive bonding. In this embodiment, the pillars 6 are composed of four pillars 6a, 6b, 6c, and 6d, each of which connects the three beds 2 as a single pillar shared by all three beds 2. Note that multiple pillars 6 may be provided independently for each bed. In this case, the four pillars 6a, 6b, 6c, and 6d of the upper and lower beds 2 may be connected to each other in the vertical direction. A tabletop 5 is provided at the top ends of the four pillars 6a, 6b, 6c, and 6d to cover the pillars 6a, 6b, 6c, and 6d. The tabletop 5 and pillars 6a, 6b, 6c, and 6d form a rectangular parallelepiped outer frame of the bed set 1. The three bunks 2 stacked on top of each other in the bunk set 1 have walls 3 that connect to the pillars 6a, 6b, 6c, and 6d and the outer periphery, and the walls 3 surround the bunks 2, forming a private space as a separate room.

[0012] FIG. 2 is an enlarged perspective view of one of the three beds 2a, 2b, and 2c, 2b, which is located at an intermediate height. As shown in FIG. 2, the bed 2b has a floor panel 8 that is rectangular in plan view. Four pillars 6a, 6b, 6c, and 6d are erected at at least the four corners of the floor panel and are connected to and support the floor panel 8. For example, the pillars 6 are L-shaped steel angle members with an L-shaped cross section, and the floor panel 8 is attached to the pillars 6 via the angles with fastening members such as bolts and nuts, thereby connecting the pillars 6 to each other via the floor panel 8. The floor panel 8 of the bed 2b supports the bedding 4, such as a mattress, placed on top of it.

[0013] In this embodiment and other modified examples, the side of the floorboard 8 where the opening 7 is formed is referred to as "one side" in the width direction, and the side opposite the one side in the width direction is referred to as "the other side." Also, the head side in the longitudinal direction of the floorboard 8 is referred to as "one side," and the foot side opposite the one side is referred to as "the other side." In Figures 1 and 2, the left side of the paper is the head side, and the right side is the foot side.

[0014] A space surrounded by walls 3 is provided above the bedding 4, and for example, a user can sleep within the space inside the walls 3. In this case, the space above the bedding 4 is surrounded by walls 3 on all sides except for an opening 7. The walls 3 include a third wall 3a arranged on the other side of the width direction of the floorboard 8, a first wall 3b erected on one side of the length direction on the head side of the floorboard 8, a second wall 3c erected on the other side of the length direction on the foot side of the floorboard 8, and a ceiling wall 3d arranged above the floorboard 8 and approximately parallel to the floorboard 8. There is no wall on one side of the width direction of the floorboard 8, and an opening 7 is formed between the floorboard 8 and the ceiling wall 3d. The first wall 3b, the second wall 3c, and the third wall 3a are erected outside the pillars 6. In this embodiment, the third wall 3a is connected to the bed set 1, but the third wall 3a may be a wall of the room in which the bed set 1 is installed, and by installing the bed set 1 next to the wall, the space above the floor board 8 may be formed as a private room.

[0015] When the beds 2a, 2b, and 2c are stacked vertically to form the bed set 1, the floor board 8 of the upper bed may be used as the ceiling wall 3d of the lower bed. For example, the underside of the floor board 8 of the bed 2a may be used as the ceiling wall 3d of the bed 2b. In this embodiment, the underside of the floor board 8 of the bed 2a also serves as the ceiling wall 3d of the bed 2b.

[0016] The bed 2b is equipped with a shutter curtain 11 that can open and close an opening 7. When the shutter curtain 11 is closed, the space above the bedding 4 is enclosed by the wall 3 and the shutter curtain 11, allowing the user to secure a private space in the space above the bedding 4. When the shutter curtain 11 is moved from the closed state to open the opening 7, the space above the bedding 4 is connected to the outside by the opening 7, and the user can enter and exit through the opening 7.

[0017] FIG. 3 shows a cross-sectional view of the bed 2b in FIG. 2 taken along line III-III, and FIG. 4 shows a cross-sectional view taken along line IV-IV in FIG. 3. The bed 2b is equipped with a guide rail 13 that guides the movement of the shutter curtain 11 when the shutter curtain 11 opens and closes. The guide rail 13 is provided inside the first wall 3b, the second wall 3c, and the ceiling wall 3d, along the inner wall surface of at least one of the first wall 3b, the second wall 3c, and the ceiling wall 3d. The guide rail 13 is provided in a position suitable for guiding the movement of the shutter curtain 11 and is provided inside the pillars 6. In this embodiment, the first rail 13a refers to the portion of the guide rail 13 that is located inside the opening 7 in the width direction and extends in the vertical direction, i.e., the direction in which the pillars 6 are erected, in the region between the end 8a on one side in the width direction of the floorboard 8 and the end 18a on one side in the width direction of the placement portion 18 on the upper surface of the floorboard 8 on which the bedding 4 is placed. Furthermore, the portion of guide rail 13 that is provided along the inner side surface of ceiling wall 3d and extends in the width direction of floorboard 8 is referred to as second rail 13b. Furthermore, the portion of guide rail 13 that is on the other side in the width direction, in the region between end 8b on the other side of floorboard 8 and end 18b on the other side in the width direction of placement section 18 on the upper surface of floorboard 8 where bedding is placed, is referred to as fourth rail 13c. In this embodiment, fourth rail 13c is provided to guide the vertical movement of shutter curtain 11 along third wall 3a.

[0018] As shown in FIG. 4, protrusions 11e are provided at both longitudinal ends of the shutter curtain 11. The guide rail 13 has a U-shaped cross section and a recess 21 that opens toward the shutter curtain 11. The guide rail 13 sandwiches the protrusion 11e of the shutter curtain 11, thereby holding the shutter curtain 11 movably along the guide rail 13. The protrusion 11e may be formed as a convex portion smaller than the shutter curtain 11 as shown in FIG. 4, or the shutter curtain 11 may not be formed as a convex portion, and the protrusion 11e may point to both longitudinal ends of the shutter curtain 11 itself. The protrusion 11e, which has the same length and thickness as the central portion of the shutter curtain 11 in the longitudinal direction, may be sandwiched between the recesses 21, and the shutter curtain 11 itself may be held movably along the guide rail 13 at both longitudinal ends.

[0019] In this embodiment, when the shutter curtain 11 opens or closes, the shutter curtain 11 moves in the vertical direction to open or close the opening 7, and the first rail 13a of the guide rails 13 is arranged to extend in the vertical direction around the opening 7 in the bed 2b at the head end 15 and the foot end 16 of the bed board 8. At this time, in order to prevent interference between the shutter curtain 11 and the bedding 4, the first rail 13a is arranged outside on one side in the width direction from the end 4a of the bedding 4 so that there is at least a gap between the shutter curtain 11 and the bedding 4.

[0020] The second rail 13b is arranged to extend in the width direction along the underside of the ceiling wall 3d at the head-side end 15 and foot-side end 16 of the floorboard 8 in the longitudinal direction to guide the movement of the shutter curtain 11. The fourth rail 13c is arranged to extend in the vertical direction along the third wall 3a at the head-side end 15 and foot-side end 16 of the floorboard 8 in the longitudinal direction to guide the movement of the shutter curtain 11. With this arrangement, when the shutter curtain 11 is opened, the shutter curtain 11 first moves upward along the arrow D1, as shown in Figures 2 and 3, and then moves from one side to the other in the width direction along the arrow D2. When the shutter curtain 11 reaches the other end of the second rail 13b in the width direction, the direction of movement of the shutter curtain 11 changes from the direction of arrow D2 to the direction of arrow D3, and then moves downward along the side of the third wall 3a.

[0021] When the shutter curtain 11 is closed, it moves upward in the opposite direction of the arrow D3, moves from the other side to one side in the width direction of the bedding 4 in the opposite direction of the arrow D2, and then moves downward in the opposite direction of the arrow D1.

[0022] The bed 2b is provided along the wall 3 and includes a storage space 17 for storing the shutter curtain 11 when the shutter curtain 11 is opened. The storage space 17 includes a portion 17a of the wall 3 that is provided along the ceiling wall 3d and is located within a certain distance L1 from the underside of the ceiling wall 3d, and a portion 17b that is provided along the third wall 3a and is located within a certain distance L2 from the inner surface of the third wall 3a. The storage space 17 may or may not be defined by a plate-like member. It is sufficient that the storage space 17 is secured as a space for the shutter curtain 11 to move along the wall 3 when the shutter curtain 11 moves along the wall 3. Note that if it is not necessary for a portion of the shutter curtain 11 to be stored in the area inside the third wall 3a when the shutter curtain 11 is opened, the storage space 17b and the fourth rail 13c may not be provided.

[0023] The shutter curtain 11 has handles 19 on both the outer and inner surfaces that can be held by hand, and is configured to be able to be opened and closed manually. Note that the handles 19 are attached to both the outer and inner surfaces of the shutter curtain 11, so the shutter curtain can be easily opened and closed not only from the outside but also from inside the bed.

[0024] FIG. 5 shows an enlarged view of a portion of the shutter curtain 11. As shown in FIG. 5, the shutter curtain 11 is configured by assembling multiple shutter members 14 together. Therefore, a user can easily destroy the shutter curtain 11 from inside the shutter curtain 11. In this embodiment, the shutter member 14 has a protrusion 14a that protrudes downward and a recess 14b that receives the protrusion 14a. The shutter members 14 are connected to each other by fitting the protrusion 14a into the recess 14b, and the shutter curtain 11 is configured by assembling multiple shutter members 14. Therefore, for example, in the event of an emergency such as a fire while a user is on the bedding 4, the user can destroy the shutter curtain 11 and escape to the outside of the bed 2b. This allows the user on the bedding 4 to escape to the outside of the bed 2b more quickly than by opening or closing the shutter curtain 11, thereby more reliably protecting themselves from fires and the like. Normally, when the shutter curtain 11 is closed and a user on the bedding 4 pushes the shutter curtain 11 from the inside outward, the pushed portion of the shutter curtain 11 protrudes outward. At this time, since the shutter curtain 11 is attached to the bed 2b by rails 13 at both ends of the floorboard 8 in the longitudinal direction, a pulling force acts on the shutter curtain 11 in the longitudinal direction when the shutter curtain 11 is pushed from the inside. This pulling force releases the engagement between the convex portion 14a and the concave portion 14b of the shutter member 14, and the shutter members 14 separate. This allows the shutter curtain 11 to be easily destroyed.

[0025] According to the configuration of the present disclosure, the bed 2b is provided with a shutter curtain 11 that covers the opening 7 when closed and opens the opening 7 when open, and the shutter curtain 11 opens and closes the opening 7 by sliding entirely along the guide rail 13, so that the shape of the shutter curtain 11 is not bulky whether the shutter curtain 11 is closed or opened. Therefore, even when the shutter curtain 11 is open, the shutter curtain 11 is maintained in a state that is aligned with the surface of the wall 3. Therefore, a person using the bed 2b can efficiently use the space above the bedding 4 without the shutter curtain 11 taking up space above the bedding 4. This ensures a large space for a person using the bed 2b, making it possible to provide a user-friendly bed 2b.

[0026] When the shutter curtain 11 opens or closes, the entire shutter curtain 11 moves relative to the bed 2b along the guide rails 13. At this time, both the front and rear ends of the shutter curtain 11 in the moving direction are not constrained and move freely along the guide rails 13. Therefore, when the shutter curtain 11 moves, the shutter curtain 11 is neither folded nor rolled up. Therefore, the shutter curtain 11 can move without being bulky in the vertical direction.

[0027] Furthermore, according to the configuration of the present disclosure, the storage space 17 is provided along the ceiling wall 3d above the floorboard 8 of the wall 3, so that when the shutter curtain 11 is opened, the shutter curtain 11 is positioned along the underside of the ceiling wall 3d, thereby preventing the shutter curtain 11 from becoming bulky in the vertical direction.

[0028] Furthermore, according to the configuration of the present disclosure, a portion of the storage space 17 is provided along the third wall 3a of the wall 3 on the other side of the floor board 8 in the width direction, so that when the shutter curtain 11 is opened, the shutter curtain 11 is positioned along the inner side of the third wall 3a, thereby preventing the shutter curtain 11 from becoming bulky in the width direction.

[0029] In this embodiment, a berth set 1 including berths 2a, 2b, and 2c is installed on a ship. When a ship has many crew members on board, the space occupied by each crew member is generally limited to the space above the bedding 4 in the berth 2. When the shutter curtain 11 is closed, the space above the bedding 4 is enclosed by the wall 3 and the shutter curtain 11, making it impossible to see inside the space above the bedding 4 in the berth 2 from the surrounding area. Since the private space above the bedding 4 is secured, usability for the crew can be improved.

[0030] Furthermore, in general, since there is a large amount of equipment required on board a ship, the space for the berths 2 tends to be limited. Therefore, the size of the private space above the bedding 4 in the berth 2 may be limited. In this embodiment, the shutter curtain 11 is not folded or rolled up when opening or closing. Therefore, the space occupied by the shutter curtain 11 in the private space above the bedding 4 in the berth 2 can be kept small. This allows users to use the private space above the bedding 4 in the berth 2 more efficiently, further improving usability for the crew.

[0031] Furthermore, according to the present disclosure, the guide rail 13 extends in the vertical direction around the opening 7, extends in a direction transverse to the floorboard 8 in the width direction at a position along the ceiling wall 3d above the floorboard 8, and extends in the vertical direction at a position along the third wall 3a. Accordingly, the shutter curtain 11 moves in the vertical direction around the opening 7, moves in a direction transverse to the width direction of the bedding 4 on the wall 3d above the bedding 4, and moves in the vertical direction at a position along the third wall 3a to open and close. Therefore, the shutter curtain 11 moves in the vertical direction around the opening 7 to open and close the opening 7. Therefore, when the shutter curtain 11 is partially opened, the opening 7 can be opened with the opening 7 extended in the longitudinal direction. As a result, a user can enter and exit the space above the bedding 4 by sliding their body through the opening 7 even when the shutter curtain 11 is only slightly opened. Therefore, in an emergency, a user can quickly access the space above the bedding 4 by partially opening and closing the shutter curtain 11.

[0032] In the above embodiment, the wall 3 is not present on one side of the bedding 4 in the width direction, and the entire space on one side of the bedding 4 is the opening 7, but this is not limited to the above embodiment. The opening 7 does not have to be provided on the entire surface on one side of the bed in the width direction.

[0033] Using Figure 6, we will explain an embodiment in which an opening 7a is provided only in a part of the wall 3. Figure 6 shows a perspective view of a bed 2d in which the opening 7a is formed only partially on one widthwise surface of the bed 2d and a shutter curtain 11a covers the opening 7a formed partially on one widthwise surface of the bed 2d. The opening 7a may be formed only partially on one widthwise surface of the bedding 4 of the bed 2d, and a wall 3e may be provided in a portion other than the opening 7a. Furthermore, the shutter curtain 11a may be configured to cover the opening 7a formed partially on one widthwise surface of the bed 2d when closed. In the bed 2d in Figure 6, the opening 7a is provided in only approximately half of the area on the foot side.

[0034] Since the opening 7a is provided only in a part on the foot side of one side surface of the bedding 4 of the bed 2d in the width direction, the area of ​​the part of the opening 7a facing outward in the width direction is formed small. Therefore, the shutter curtain 11a covering the opening 7a can be made small, and the shutter curtain 11a can be made lighter. Therefore, the user can manually operate the shutter curtain 11a with less force. This makes it easier to operate the shutter curtain 11a. In this way, even if the opening 7a is made small, as long as a sufficient area can be secured for the user to enter and exit the space above the bedding 4, the opening 7a may be made small, and the shutter curtain 11a may be made small in order to reduce the weight of the shutter curtain 11a.

[0035] In the above embodiment, the bed board 8 is described as being configured from a single plate-like member, but is not limited to the above embodiment. The bed board 8 may include a box-shaped storage section capable of storing items therein, and a lid section disposed above the storage section for covering the storage section. By including the bed board 8 in the storage section and the lid section, it is possible to provide a more user-friendly bed 2b by opening the lid section and storing items inside the storage section.

[0036] In the above embodiment, as shown in FIG. 1, a configuration has been described in which multiple floor panels 8 are connected to four pillars 6 at different heights, and the first wall 3b and the second wall 3c are erected in common with the multiple floor panels 8. However, this is not limited to the above embodiment. A configuration in which multiple floor panels 8 are connected to one pillar 6 and the pillar 6 is not necessarily used in common with the multiple floor panels 8. A pillar having a height equivalent to that of one bed 2 may be attached to the floor panel 8, and the beds 2 may be constructed separately. The bed set 1 may be constructed by stacking the respective beds 2 vertically. In this case, the first wall 3b, the second wall 3c, and the third wall 3a may be replaced by separate first walls, second walls, and third walls that are separated for each bed 2.

[0037] (Second embodiment) Next, a bed according to a second embodiment will be described. Fig. 7 shows a perspective view of a bed 2e according to the second embodiment. Fig. 8 shows a cross-sectional view taken along line VIII-VIII in Fig. 7. Note that parts common to the first embodiment are given the same reference numerals and will not be described again. The second embodiment differs from the first embodiment in that when the shutter curtain 11b opens or closes, it moves along the longitudinal direction of the floorboard 8 around the opening 7, and that the shutter curtain 11b is divided longitudinally into a first shutter 11c and a second shutter 11d.

[0038] In the second embodiment, the shutter curtain 11b includes a first shutter 11c that moves on the head side in the longitudinal direction of the floorboard 8, and a second shutter 11d that moves on the foot side in the longitudinal direction of the floorboard 8. When opening and closing, the first shutter 11c and the second shutter 11d each move along the longitudinal direction of the floorboard 8 around the opening 7. When the first shutter 11c opens, the entire first shutter 11c moves toward the head side in the longitudinal direction of the floorboard 8. When the second shutter 11d opens, the entire second shutter 11d moves toward the foot side in the longitudinal direction of the floorboard 8.

[0039] When the first shutter 11c and the second shutter 11d reach the head-side end 7b and the foot-side end 7c of the opening 7 around the periphery of the opening 7, the first shutter 11c and the second shutter 11d move from one side to the other in the width direction along the first wall 3b and the second wall 3c, respectively. When the first shutter 11c and the second shutter 11d reach the third wall 3a, the first shutter 11c and the second shutter 11d move toward the inside in the longitudinal direction of the floorboard 8 at a position along the third wall 3a.

[0040] 7 and 8, when the shutter curtain 11b is opened, the first shutter 11c and the second shutter 11d first move along the arrows D4 and D5, then move along the arrows D6 and D7, and then move along the arrows D8 and D9 toward the inside in the longitudinal direction of the floor board 8. When the shutter curtain 11b is closed, the first shutter 11c and the second shutter 11d first move toward the outside in the longitudinal direction of the floor board 8 in the opposite direction of the arrows D8 and D9, and then move from the other side to one side in the width direction in the opposite direction of the arrows D6 and D7, and then move toward the inside in the longitudinal direction of the floor board 8 in the opposite direction of the arrows D4 and D5.

[0041] In this embodiment, the guide rail 13 that guides the movement of the shutter curtain 11b includes a first rail 13d that extends in the longitudinal direction of the floorboard 8 in an area that is inside the opening 7 in the width direction and between one end 8a of the floorboard 8 in the width direction and one end 18a of the placement portion 18 on the upper surface of the floorboard 8 where the bedding 4 is placed; a second rail 13e that is provided along the inner side surface of the first wall 3b and extends in the width direction of the floorboard 8; and a third rail 13f that is provided along the inner side surface of the second wall 3c and extends in the width direction of the floorboard 8. In this case, the shutter curtain 11b includes a first shutter 11c that slides entirely along the first rail 13d and the second rail 13e, and a second shutter 11d that slides entirely along the first rail 13d and the third rail 13f. When opening or closing the shutter curtain 11b, the first shutter 11c and the second shutter 11d are moved to open or close the opening 7.

[0042] 9 shows a cross-sectional view taken along line IX-IX in FIG. 8. In this embodiment, the first rail 13d arranged around the opening 7 includes an upper first rail 13g provided along the lower surface of the ceiling wall 3d and a lower first rail 13h provided along the upper surface of the floorboard 8. The shutter curtain 11b, which includes the first shutter 11c and the second shutter 11d, has its upper end 11f guided in movement by the upper first rail 13g and its lower end 11g guided in movement by the lower first rail 13h. In this embodiment, the upper end 11f and the lower end 11g of the shutter curtain 11b protrude outward in the vertical direction from the main body 11h, and are configured so that their lengths in the width direction of the floorboard 8 are shorter than those of the main body 11h. The upper end 11f and the lower end 11g are sandwiched in the width direction by the first rail 13d from one side and the other side in the width direction. Thus, the first rail 13d includes two first rails 13g and 13h, which are upper and lower first rails 13g and 13h, respectively, arranged substantially parallel to each other. Similarly, the second rail 13e, which guides the movement of the first shutter 11c when the first shutter 11c moves along the first wall 3b, also includes an upper second rail 13k and a lower second rail 13m, which are provided along the underside of the ceiling wall 3d. Specifically, the second rail 13e includes two second rails 13k and 13m, which are upper and lower second rails 13k and 13m, respectively, arranged substantially parallel to each other. Similarly, the third rail 13f, which guides the movement of the second shutter 11d when the second shutter 11d moves along the second wall 3c, also includes an upper third rail and a lower third rail. In this embodiment, shutter curtain 11b is provided between two first rails 13g, 13h, between two second rails 13k, 13m, and between two third rails, and slides entirely along the rails. In the second embodiment, the upper end 11f and lower end 11g of shutter curtain 11b, which are shorter in length in the width direction of floorboard 8 than main body 11h, protrude outward in the vertical direction from main body 11h, and the upper end 11f is guided in movement by upper first rail 13g, and the lower end 11g is guided in movement by lower first rail 13h.However, the present invention is not limited to the above configuration. The upper end 11f and the lower end 11g may be the same length as the main body 11h in the width direction of the floorboard 8, and the upper end 11f and the lower end 11g of the shutter curtain 11b having the same thickness as the main body 11h may be sandwiched between the guide rails 13, and the shutter curtain 11b may be held movably along the guide rails 13. In other words, the thickness of the shutter curtain 11b may not change at the upper and lower ends, and the shutter curtain 11b itself may be sandwiched between the guide rails 13 at the upper and lower ends.

[0043] In the second embodiment as well, the bed 2e has a fourth rail 13n on the other widthwise side of the guide rails 13, which guides the movement of the shutter curtain 11 in the region between the other end 8b of the floorboard 8 and the other widthwise end 18b of the placement section 18 on the upper surface of the floorboard 8 where the bedding is placed. In this embodiment, the fourth rail 13n is provided to guide the longitudinal movement of the floorboard 8 along the third wall 3a by the shutter curtain 11. The fourth rail 13n has an upper fourth rail 13p and a lower fourth rail 13q provided along the underside of the ceiling wall 3d.

[0044] The bed 2e includes a first shutter storage space 17c for storing the first shutter 11c when the first shutter 11c and the second shutter 11d are open, and a second shutter storage space 17d for storing the second shutter 11d. The first shutter storage space 17c includes a portion 17e provided along the first wall 3b on the head side of the bedding 4 and a portion 17f provided along the third wall 3a on the other side in the width direction. Similarly, the second shutter storage space 17d includes a portion 17g provided along the second wall 3c on the foot side of the bedding 4 and a portion 17h provided along the third wall 3a on the other side in the width direction. The portion 17e of the first shutter storage space 17c provided along the first wall 3b on the head side in the longitudinal direction of the bed board 8 is a space at a certain distance L3 from the inner side surface of the first wall 3b. In the first shutter storage space 17c, a portion 17f provided along the third wall 3a on the other side in the width direction of the floor board 8 is a space that is a fixed distance L4 from the inner side surface of the third wall 3a in the width direction of the floor board 8. In the second shutter storage space 17d, a portion 17g provided along the second wall 3c on the foot side in the longitudinal direction of the floor board 8 is a space that is a fixed distance L5 from the inner side surface of the second wall 3c in the longitudinal direction of the floor board 8. In the second shutter storage space 17d, a portion 17h provided along the third wall 3a on the other side in the width direction of the floor board 8 is a space that is a fixed distance L6 from the inner side surface of the third wall 3a in the width direction of the floor board 8.

[0045] The guide rail 13 that guides the shutter curtain 11b extends along the longitudinal direction of the floorboard 8 around the periphery of the opening 7, and changes direction at an end 7b on the head side of the opening 7 and an end 7c on the foot side of the opening 7 in the longitudinal direction of the floorboard 8. The guide rail 13 extends from there along the width direction of the floorboard 8, extends along the width direction of the floorboard 8 on the inner surfaces of the first wall 3b and the second wall 3c, changes direction at a position along the third wall 3a, and then extends from there along the inside of the floorboard 8 in the longitudinal direction.

[0046] The first shutter 11c and the second shutter 11d move in the longitudinal direction of the floorboard 8 around the opening 7, and therefore the first rail 13d is arranged extending in the longitudinal direction of the floorboard 8 at the positions of the upper end 7d and the lower end 7e in the up-down direction around the opening 7. In other words, the first rail 13d is arranged on the underside of the ceiling wall 3d and on the upper surface of the floorboard 8. As a result, when the bed 2e is viewed from above, the first rail 13d is arranged so that the shutter curtain 11b guides the longitudinal movement of the floorboard 8 at a position between the end 8a on one side in the width direction of the floorboard 8 and the end 18a on one side in the width direction of the placement section 18.

[0047] The first shutter 11c and the second shutter 11d move along the longitudinal direction of the floorboard 8 around the opening 7, and when they reach the head-side end 7b and foot-side end 7c of the floorboard 8 in the longitudinal direction, they move from there along the first wall 3b or the second wall 3c from one side to the other in the width direction of the floorboard 8. Therefore, the guide rails 13 extend and guide the shutter curtain 11b in the longitudinal direction of the floorboard 8 at the positions of the upper end 7d and the lower end 7e in the up-down direction around the opening 7, and then guide the movement of the shutter curtain 11b as it moves from one side to the other in the width direction of the floorboard 8 on the upper surface of the floorboard 8 and the lower surface of the ceiling wall 3d. When the shutter curtain 11b reaches the end of the second rail 13e or the third rail 13f on the other side in the width direction of the floorboard 8, they guide the movement of the shutter curtain 11b from there toward the inside in the longitudinal direction of the floorboard 8 on the upper surface of the floorboard 8 and the lower surface of the ceiling wall 3d.

[0048] When the first shutter 11c and the second shutter 11d open or close, the first shutter 11c and the second shutter 11d move in the longitudinal direction of the floorboard 8 around the opening 7 in the bed 2e, and therefore the guide rail 13 is arranged around the opening 7 in the bed 2e, at the position of the lower surface of the ceiling wall 3d and the upper surface of the floorboard 8, extending in the longitudinal direction of the floorboard 8. As a result, the first rail 13d is arranged to guide the movement of the shutter curtain 11b in the longitudinal direction of the floorboard 8 around the opening 7, at a position between one end 8a on the outer side in the width direction of the floorboard 8 and one end 18a in the width direction of the placement portion 18. Furthermore, the guide rails 13 are arranged along the first wall 3b and the second wall 3c at the positions of the lower surface of the ceiling wall 3d and the upper surface of the floor board 8 so as to guide the movement of the first shutter 11c and the second shutter 11d when they move from one side to the other in the width direction of the floor board 8. Furthermore, the guide rails 13 are arranged along the third wall 3a at the positions of the lower surface of the ceiling wall 3d and the upper surface of the floor board 8 so as to guide the movement of the first shutter 11c and the second shutter 11d when they move along the third wall 3a.

[0049] When the first shutter 11c and the second shutter 11d are opened, if the leading ends of the first shutter 11c and the second shutter 11d in the movement direction during the opening operation of the first shutter 11c and the second shutter 11d fit inside the first wall 3b and the second wall 3c, and if there is no need for a portion of the first shutter 11c and the second shutter 11d to be stored in the area inside the third wall 3a in the width direction of the floor board 8, then the portion 17f of the first shutter storage space 17c along the third wall 3a and the portion 17h of the second shutter storage space 17d along the third wall 3a may not be provided. In that case, the fourth rail 13n extending in the longitudinal direction of the floor board 8 at a position on the guide rail 13 along the third wall 3a may also not be provided.

[0050] According to the configuration of the present disclosure, the bed 2e includes the first shutter 11c and the second shutter 11d that cover the opening 7 when closed and open the opening 7 when opened, and the first shutter 11c and the second shutter 11d open and close the opening 7 by sliding along the guide rail 13 as a whole. Therefore, the shapes of the first shutter 11c and the second shutter 11d are not bulky whether the first shutter 11c and the second shutter 11d are closed or opened. Therefore, even when the first shutter 11c and the second shutter 11d are opened, the first shutter 11c and the second shutter 11d are maintained in a state along the wall surface of the wall 3. Therefore, a person using the bed 2e can efficiently use the space above the bedding 4 without the space above the bedding 4 being taken up by the first shutter 11c and the second shutter 11d.

[0051] Furthermore, when the first shutter 11c and the second shutter 11d open or close, the first shutter 11c and the second shutter 11d move as a whole along the guide rails 13 relative to the bed 2e. At this time, both the front and rear ends of the first shutter 11c and the second shutter 11d in the direction of movement are not constrained and move freely along the guide rails 13. Therefore, when the first shutter 11c and the second shutter 11d move, the first shutter 11c and the second shutter 11d are not folded or rolled up. Therefore, the first shutter 11c and the second shutter 11d can move without taking up too much space in the space above the bedding 4 (in the longitudinal and transverse directions of the bed board 8).

[0052] The first shutter storage space 17c and the second shutter storage space 17d are provided along both the first wall 3b and the second wall 3c of the wall 3, so that the spaces for storing the first shutter storage space 17c and the second shutter storage space 17d are secured in positions along the first wall 3b and the second wall 3c. Therefore, the shapes of the first shutter storage space 17c and the second shutter storage space 17d are not bulky at either end of the floorboard 8 in the longitudinal direction.

[0053] Furthermore, according to the configuration of the present disclosure, the guide rails 13 are provided on both the upper surface of the floor board 8 and the lower surface of the ceiling wall 3d, so that the shutter curtain 11b can slide more stably when it moves.

[0054] Furthermore, according to the configuration of the present disclosure, the handle members 19 are provided on both the outer and inner surfaces of the shutter curtain 11, so that the user can open and close the shutter curtain 11 from outside the bed 2e. Also, the user can open and close the shutter curtain 11 from the space above the floorboard 8 inside the bed 2e. Therefore, a more user-friendly bed 2e can be provided.

[0055] In the second embodiment, the shutter curtain 11b includes the first shutter 11c and the second shutter 11d, and when the shutter curtain 11b opens, the first shutter 11c moves toward the head side and the second shutter 11d moves toward the foot side around the opening 7. However, this is not limited to the above embodiment. When the shutter curtain 11b opens or closes, the shutter curtain 11b may move in its entirety even if it moves along the longitudinal direction of the floorboard 8. In other words, instead of the shutter curtain 11b being divided into the first shutter 11c and the second shutter 11d around the opening 7 as shown in FIGS. 6 and 7, the shutter curtain 11b may be opened or closed by moving the entire unitary shutter curtain 11b along the longitudinal direction of the floorboard 8 around the opening 7.

[0056] In this case, storage space 17 may be provided along either the first wall 3b or the second wall 3c of the wall 3. Since storage space 17 is provided along either the first wall 3b or the second wall 3c of the wall 3, storage space 17 is provided only on one side in the longitudinal direction of floorboard 8, allowing the user to secure a larger space above bedding 4 in the longitudinal direction.

[0057] Furthermore, in the second embodiment, a configuration has been described in which, when the shutter curtain 11b opens and closes, the shutter curtain 11b moves along the longitudinal direction of the floorboard 8 around the opening 7, there is no wall on one side of the width direction of the bedding 4, and the opening 7 is formed over the entire surface on one side of the space above the bedding 4. However, this is not limited to the above embodiment. Even in a configuration in which, when the shutter curtain 11b opens and closes, the shutter curtain 11b moves along the longitudinal direction of the floorboard 8 around the opening 7, the opening 7 may be provided only in a portion of the surface of the bed 2e on one side of the width direction of the bedding 4, and the shutter curtain 11b may be configured to cover the opening 7 that is partially formed on the surface of the bed 2e on one side of the width direction of the bedding 4. Furthermore, a wall 3 may be formed in a portion of the surface of the bed 2e on the other side of the width direction of the bedding 4 where the opening 7 is not formed.

[0058] In the above embodiment, the berth 2 and the berth set 1 are described as being installed on a ship. However, this is not limited to the above embodiment. The berth 2 and the berth set 1 may be installed on other vehicles. Furthermore, the berth 2 and the berth set 1 may be installed on vehicles other than marine vehicles. For example, the berth 2 and the berth set 1 may be applied to land-based facilities.

[0059] Furthermore, in the above first and second embodiments, a configuration has been described in which the shutter curtains 11, 11a, and 11b have end portions that protrude from the main body portion and are thinner than the main body portion, and the end portions are sandwiched by the guide rails 13 to movably hold the shutter curtains. Also, a configuration has been described in which the shutter curtains 11, 11a, and 11b have end portions that are the same thickness as the main body portion and are sandwiched by the guide rails 13 to movably hold the shutter curtains. However, this is not limited to the above first and second embodiments. The cross sections of the end portions of the shutter curtains 11, 11a, and 11b may be U-shaped, and the guide rails 13 may be provided with protruding portions, and the protruding portions of the guide rails may be sandwiched by the U-shaped end portions of the shutter curtains 11, 11a, and 11b, so that the shutter curtains 11, 11a, and 11b are movably attached to the guide rails 13.

[0060] Furthermore, in the above embodiment, the first wall 3b, the second wall 3c, and the third wall 3a are each formed by a single plate attached to the outer surface of the pillar 6 across multiple floorboards 8 so as to form the first wall 3b and the second wall 3c common to multiple floorboards 8. However, this is not limited to the above embodiment. The first wall 3b, the second wall 3c, and the third wall 3a do not necessarily have to be provided. If a wall is provided in advance in the environment where the bed set 1 is placed and can function as the first wall 3b, the second wall 3c, or the third wall 3a by being arranged around the bed, the first wall 3b, the second wall 3c, or the third wall 3a may not be required. In this case, guide rails may be provided on the upper and lower surfaces of the floorboards 8, and the shutter curtain may slide entirely along the guide rails provided on the upper and lower surfaces of the floorboards 8 to open and close the opening. In this case, the floorboards 8 themselves may function as partitions to divide the spaces on the floorboards 8 for each bed 2.

[0061] As described above, the above-described embodiments have been described as examples of the technology disclosed in this application. However, the technology of the present disclosure is not limited to these embodiments and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made as appropriate. Furthermore, the components described in the above-described embodiments can be combined to create new embodiments. For example, some configurations or methods in one embodiment may be applied to other embodiments, and some configurations in one embodiment may be separated from other configurations in that embodiment and extracted as desired. Furthermore, the components described in the accompanying drawings and detailed description include not only components essential for solving the problem, but also components that are not essential for solving the problem, and are used to illustrate the technology.

[0062] Each of the following sections is a disclosure of a preferred embodiment.

[0063] [Item 1] A floorboard having a rectangular shape in plan view; A plurality of pillars erected at at least four corners of the floorboard; a first wall erected on one side of the floorboard in the longitudinal direction; a second wall erected on the other side of the floorboard in the longitudinal direction; A ceiling wall provided above the floor board and parallel to the floor board; an opening provided on one side of the floor board in the width direction between the floor board and the ceiling wall; a guide rail provided inside the first wall, the second wall, and the ceiling wall along an inner wall surface of at least one of the first wall, the second wall, and the ceiling wall; a shutter curtain that opens and closes the opening by sliding entirely along the guide rail.

[0064] According to the above configuration, the shutter curtain opens and closes the opening by sliding entirely along the guide rail, so the shutter curtain does not take up much space whether it is closed or open, and therefore the shutter curtain is kept contained in a small space whether it is closed or open.

[0065] [Item 2] The guide rail is a first rail extending in a direction in which the plurality of pillars are erected, the first rail being located inside the opening in the width direction; a second rail provided along the inner side surface of the ceiling wall and extending in the width direction of the floorboard; Item 1. The sleeper according to item 1,

[0066] According to the above configuration, the guide rail has a first rail that extends in the direction in which the pillars are erected, on the inside in the width direction of the opening, so that the shutter curtain moves up and down around the opening to open and close it, and when the shutter curtain is partially opened, the opening can be opened with the opening extended in the longitudinal direction. This allows the user to enter and exit the space on the mat by sliding their body through the opening even when the shutter curtain is only slightly opened. Therefore, the user can quickly access the space on the mat by partially opening and closing the shutter curtain.

[0067] [Item 3] The guide rail is a first rail extending in the longitudinal direction of the floorboard, the first rail being located inside the opening in the width direction; a second rail provided along the inner side surface of the first wall and extending in the width direction of the floorboard; Item 1. The sleeper according to item 1,

[0068] [Item 4] the first rail includes an upper first rail provided along the lower surface of the ceiling wall and a lower first rail provided along the upper surface of the floor board, The bed described in item 3, wherein the shutter curtain has an upper end guided for movement by the upper first rail and a lower end guided for movement by the lower first rail.

[0069] According to the above configuration, the first rail includes an upper first rail provided along the underside of the ceiling wall and a lower first rail provided along the upper surface of the floorboard, so the shutter curtain moves while being guided by both the upper first rail and the lower first rail, allowing the shutter curtain to slide stably.

[0070] [Item 5] The guide rail further includes a third rail provided along the inner side surface of the second wall and extending in the width direction of the floorboard, The bed described in item 3 or 4, wherein the shutter curtain has a first shutter that slides entirely along the first rail and the second rail, and a second shutter that slides entirely along the first rail and the third rail.

[0071] [Item 6] The first rail includes two first rails arranged substantially parallel to each other, The second rail includes two second rails arranged substantially parallel to each other, The bed described in any one of items 2 to 5, wherein the shutter curtain is provided between the two first rails and between the two second rails, and slides entirely along the rails.

[0072] According to the above configuration, the shutter curtain is provided between two first rails and two second rails, and the shutter curtain slides along the first rail or the second rail as a whole, so the shutter curtain moves while being guided by the two rails, allowing the shutter curtain to slide stably.

[0073] [Item 7] A bed described in any of items 2 to 6, wherein the guide rail includes a fourth rail on the other side opposite the one side in the width direction, which guides the movement of the shutter curtain in the area between the other end of the floorboard and the other end of the width direction of the placement section on the upper surface of the floorboard where bedding is placed.

[0074] According to the above configuration, the guide rail includes a fourth rail that guides the movement of the shutter curtain in the area between the other end of the floorboard and the other end in the width direction of the placement section on the upper surface of the floorboard where the bedding is placed, ensuring a sufficient length of the guide rail, thereby enabling the guide rail to more reliably guide the movement of the shutter curtain.

[0075] [Item 8] 8. A bed according to any one of items 1 to 7, wherein the shutter curtain has handles on both the outer and inner surfaces that can be held by hand.

[0076] [Item 9] The pillar is an L-shaped angle having an L-shaped cross section, the first wall and the second wall are erected on the outer sides of the pillars, The bed described in any one of items 1 to 8, wherein the guide rail is provided inside the pillar.

[0077] According to the above configuration, the first and second walls are erected on the outside of the pillars, and the guide rails are provided on the inside of the pillars, so the pillars do not protrude inside the first and second walls. Therefore, a large space above the floorboard is secured, and a user-friendly bed can be provided.

[0078] [Item 10] The bed according to any one of items 1 to 9, wherein the shutter is made up of a plurality of shutter members assembled together.

[0079] According to the above configuration, the shutter is made up of multiple shutter members assembled together, so the user can easily destroy the shutter from the inside. This allows the user to destroy the shutter and escape to the outside of the bed in the event of an emergency while on the mattress, for example. This allows the user to more reliably protect themselves.

[0080] [Item 11] A berth according to any one of items 1 to 10, installed on a ship.

[0081] According to the above configuration, since the berth is mounted on the ship, the space occupied by the shutter can be kept small inside the ship where available space is limited, allowing users to use the space above the mattress in the berth more efficiently.

[0082] [Item 12] A bed set comprising a plurality of beds according to any one of items 1 to 11, the plurality of beds being assembled in a vertical direction.

[0083] According to the above configuration, the bunk set includes a plurality of the above-mentioned berths, which are assembled vertically, so that the bunk set can be used by a plurality of crew members. Therefore, it is possible to provide a user-friendly bunk set that can accommodate a large number of crew members.

[0084] [Item 13] A plurality of floorboards each having a rectangular shape in plan view; the plurality of floorboards are connected at positions of different heights, and a plurality of pillars are erected at at least four corners of each of the plurality of floorboards; In each of the plurality of floorboards, a plurality of openings are provided on one side in the width direction, through which the space above the floorboard is opened to the outside; A plurality of guide rails are provided along each of the floor panels; A bed set comprising a plurality of shutter curtains provided for each of the floorboards, the curtains sliding as a whole along the guide rails to open and close the opening.

[0085] According to the above configuration, the shutter curtain opens and closes the opening by sliding entirely along the guide rail, so the shutter curtain does not take up much space whether it is closed or open, and therefore the shutter curtain is kept contained in a small space whether it is closed or open. [Explanation of symbols]

[0086] 1 sleeping set 2, 2a, 2b, 2c, 2d, 2e sleeper 3. Wall 3a 3rd wall 3b 1st wall 3c 2nd wall 4. Bedding 7, 7a opening 8 Floorboards 11, 11a, 11b Shutter Curtain 11c First shutter 11d Second shutter 13 Guide rail 13a, 13d, 13g, 13h 1st rail 13b, 13e, 13k, 13m 2nd rail 13F 3rd Rail 13c, 13n, 13p, 13q 4th rail 14 Shutter parts

Claims

1. A floorboard having a rectangular shape in plan view; A plurality of pillars erected at at least four corners of the floorboard; a first wall erected on one side of the floorboard in the longitudinal direction; a second wall erected on the other side of the floorboard in the longitudinal direction; A ceiling wall provided above the floor board and parallel to the floor board; an opening provided on one side of the floor board in the width direction between the floor board and the ceiling wall; a guide rail provided inside the first wall, the second wall, and the ceiling wall along an inner wall surface of at least one of the first wall, the second wall, and the ceiling wall; a shutter curtain that opens and closes the opening by sliding entirely along the guide rail.

2. The guide rail is a first rail extending in a direction in which the plurality of pillars are erected, the first rail being located inside the opening in the width direction of the floorboard; a second rail provided along the inner side surface of the ceiling wall and extending in the width direction of the floorboard; 10. The sleeper of claim 1, comprising:

3. The guide rail is a first rail extending in a longitudinal direction of the floorboard, the first rail being located inside the opening in the width direction of the floorboard; a second rail provided along the inner side surface of the first wall and extending in the width direction of the floorboard; 10. The sleeper of claim 1, comprising:

4. the first rail includes an upper first rail provided along the lower surface of the ceiling wall and a lower first rail provided along the upper surface of the floor board, The bed according to claim 3 , wherein the shutter curtain has an upper end whose movement is guided by the upper first rail and a lower end whose movement is guided by the lower first rail.

5. The guide rail further includes a third rail provided along an inner side surface of the second wall and extending in a width direction of the floorboard, The bed of claim 3, wherein the shutter curtain has a first shutter that slides entirely along the first rail and the second rail, and a second shutter that slides entirely along the first rail and the third rail.

6. The first rail includes two first rails arranged substantially parallel to each other, The second rail includes two second rails arranged substantially parallel to each other, 4. The bed according to claim 2, wherein the shutter curtain is provided between the two first rails and between the two second rails, and slides entirely along the rails.

7. A bed as described in claim 2 or 3, wherein the guide rail includes a fourth rail on the other side opposite the one side in the width direction, which guides the movement of the shutter curtain in the area between the other end of the floor board and the other end of the width direction of the placement section on the upper surface of the floor board on which bedding is placed.

8. The bed according to claim 1 , wherein the shutter curtain has handholds on both the outer and inner surfaces thereof that can be held by hand.

9. The pillar is an L-shaped angle having an L-shaped cross section, the first wall and the second wall are erected on the outer sides of the pillars, The bed according to claim 1 , wherein the guide rails are provided inside the pillars.

10. The bed according to claim 1 , wherein the shutter is formed by assembling a plurality of shutter members together.

11. 10. The berth of claim 1 installed on a ship.

12. A bed set comprising a plurality of beds according to any one of claims 1 to 5, the plurality of beds being assembled in a vertical direction.

13. A plurality of floorboards each having a rectangular shape in plan view; the plurality of floorboards are connected at positions of different heights, and a plurality of pillars are erected at at least four corners of each of the plurality of floorboards; In each of the plurality of floorboards, a plurality of openings are provided on one side in the width direction, through which the space above the floorboard is opened to the outside; A plurality of guide rails are provided along each of the floor panels; A bed set comprising a plurality of shutter curtains provided for each of the floorboards, the curtains sliding as a whole along the guide rails to open and close the opening.

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