bed

Abstract

This invention provides a bed designed to improve work efficiency when adjusting the height of the bed base. [Solution] The bed 1 comprises a bed base 2, L-shaped support legs 30 that support the four corners of the bed base, and a switching member 4 that can switch between a first form 1A in which the bed base 2 is supported at a first height 2A, and a second form in which the bed base 2 is supported at a second height Z2 below the first height. The switching member comprises a switching unit body and a rotating unit 61 that is continuous with the switching unit body and has an axial hole. The switching unit body comprises a first plate 62, a second plate, and a third The switching unit body is rotatably supported relative to the support legs, with a plate 64 and a rotating shaft portion B1 inserted through an axial hole as the rotation center S, and the first and second forms are switchable. In the first form, the first plate extends in the vertical direction Z, the second plate is fixed to the floor base, and the third plate is fixed to the support legs. In the second form, the first plate extends in the horizontal direction XY, and the third plate is fixed to the floor base.

Description

Technical Field

[0001] The present invention relates to a bed.

Background Art

[0002] Conventionally, in the living quarters of a ship, a multi-stage bed that can be mutually switched between a form used as a two-stage bed and a form used as a three-stage bed has been considered (see, for example, Patent Document 1).

[0003] The conventional multi-stage bed disclosed in Patent Document 1 includes four support legs fixed to an installation space, an upper bed section, a middle bed section, and a lower bed section arranged at intervals in the vertical direction, and four fittings for supporting each bed section on the support legs. In each support leg, at a position where each bed section is locked (hereinafter sometimes referred to as a locking position), a slit-shaped fitting hole into which each fitting is inserted and fitted is formed, and the four corners of each bed section are locked to the support legs via the fittings inserted into the fitting holes.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the conventional multi-stage bed, the fittings are inserted and fitted into the fitting holes provided in each support leg. Therefore, when changing the height positions of the upper bed section (bed base) and the middle bed section (bed base) and performing the switching operation between the form used as a two-stage bed and the form used as a three-stage bed, there is a concern that the fittings may fall off by pulling the fittings out of the fitting holes, and the workability is poor.

[0006] The objective of the present invention is to provide a bed that improves work efficiency when switching the height position of the bed base. [Means for solving the problem]

[0007] To solve the aforementioned problems and achieve the objective, the present invention as described in claim 1 comprises a floor base, L-shaped support legs erected from the installation surface and supporting the four corners of the floor base, and a switching member that can switch between a first form in which the floor base is supported at a first height and a second form in which the floor base is supported at a second height lower than the first height, wherein the switching member comprises a switching unit body and a rotating unit continuous with the switching unit body and having an axial hole, wherein the switching unit body comprises a first plate continuous with the rotating unit and extending away from the rotating unit, and an end of the first plate in the extending direction away from the rotating unit The bed comprises a second plate rising from a section and a third plate rising from an end of the first plate in a direction perpendicular to the extension direction, and the switching section body is rotatably supported with respect to the support legs, with a rotating shaft inserted through the shaft hole as the center of rotation, and the first and second forms are switchable, characterized in that in the first form the first plate extends in the vertical direction and the second plate and the bed base are fixed, and the third plate and the support legs are fixed, and in the second form the first plate extends in the horizontal direction and the third plate and the bed base are fixed. [Effects of the Invention]

[0008] According to the present invention, it is possible to improve work efficiency when switching the height position of the floor platform. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing a three-tiered bunk bed configuration (first embodiment) of a bed according to an embodiment of the present invention. [Figure 2] This is a perspective view showing the aforementioned bed in the form of a two-tiered bed (second form). [Figure 3]The diagram shows the downward switching member that constitutes the bed, where (A) is a cross-sectional view along line II in Figure 1, and (B) is a cross-sectional view along line II-II in Figure 2. [Figure 4] The diagram shows the upper switching member that constitutes the bed, where (A) is a cross-sectional view along the line III-III in Figure 1, and (B) is a cross-sectional view along the line IV-IV in Figure 2. [Figure 5] This is a perspective view showing the downward switching member. [Figure 6] This is a perspective view showing the aforementioned upward switching member. [Modes for carrying out the invention]

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of a bed 1 according to an embodiment of the present invention, showing a three-tiered bed configuration 1A. Figure 2 is a bed 1, Figure 3 is a perspective view showing configuration 1B of a two-tiered bunk bed. Figure 3 shows the lower switching member 4 that constitutes the bunk bed 1, where (A) is a cross-sectional view along line II in Figure 1, and (B) is a cross-sectional view along line II-II in Figure 2. Figure 4 shows the upper switching member 5 that constitutes the bunk bed 1, where (A) is a cross-sectional view along line III-III in Figure 1, and (B) is a cross-sectional view along line IV-IV in Figure 2. Figure 5 is a perspective view showing the lower switching member 4, and Figure 6 is a perspective view showing the upper switching member 5.

[0011] As shown in Figures 1 and 2, the bed 1 according to this embodiment comprises a bed base 2 formed in a rectangular shape in plan view, a support frame member 3 including support legs 30 that support the four corners of the bed base 2, a lower switching member 4 (switching member), and an upper switching member 5 (switching member), and is configured to be switchable between a 3-tier bed configuration 1A (shown in Figure 1) and a 2-tier bed configuration 1B (shown in Figure 2).

[0012] In this embodiment, the longitudinal direction of the base 2 is assigned the symbol Y, the width direction of the base 2 is assigned the symbol X, and the thickness direction of the base 2 is assigned the symbol Z, and this may be referred to as "height direction Z" or "up and down direction Z". In addition, one of the height directions Z may be referred to as "upward Z1" and the other as "downward Z2".

[0013] As shown in Figures 1 and 2, the floor platform 2 comprises a first floor platform 21, a second floor platform 22 (lower floor platform), and a third floor platform 23 (upper floor platform). The first floor platform 21 is located closest to the installation surface F, the second floor platform 22 is located above the first floor platform 21 Z1, and the third floor platform 23 is located above the second floor platform 22 Z1. These three floor platforms 21, 22, and 23 are supported by support legs 30, which will be described later, and are installed facing each other in the height direction Z.

[0014] Each floor platform 2, as shown in Figures 1 and 3, is formed in a rectangular shape in plan view and comprises a rectangular support plate 24 (shown in Figure 3), a peripheral plate 25 that rises from the periphery of the support plate 24, and a floor plate 26 that is installed on the upper surface of the support plate 24. In this embodiment, the support plate 24 has a cutout in the center and is configured in a frame shape with a peripheral edge that is continuous with the lower end of the peripheral plate 25. Hereinafter, the support plate 24 and the floor plate 26 may be referred to as the "bottom surface portion 27 (shown in Figure 3)".

[0015] The first bed base 21 is supported at a predetermined position on the support legs 30. The second bed base 22 is supported on the support legs 30 and is also supported so as to be switchable between a lower first position 2A (first height) and a lower second position 2B (second height) by a lower switching member 4, which will be described later. The third bed base 23 is supported on the support legs 30 and is also supported so as to be switchable between an upper first position 3A (first height) and an upper second position 3B (second height) by an upper switching member 5, which will be described later.

[0016] When such a first bed base 21, a second bed base 22, and a third bed base 23 are used in the form 1A of a three-tiered bed, the first bed base 21 is in a predetermined position, the second bed base 22 is supported at the lower first position 2A, and the third bed base 23 is supported at the upper first position 3A. Further, when used in the form 1B of a two-tiered bed, the first bed base 21 is in a predetermined position, the second bed base 22 is supported at the lower second position 2B, and the third bed base 23 is supported at the upper second position 3B.

[0017] As shown in FIGS. 1 and 2, the support frame member 3 is composed of four support legs 30 and a girder 31 spanned across the four support legs 30. Each support leg 30 is formed by bending a substantially rectangular sheet metal so that the ends in the short side direction are brought close to each other to form an L shape (L-shaped cross section). Hereinafter, in each support leg 30, one side sandwiching the fold line 30a (shown in FIG. 1) may be referred to as the "first member 32", and the other side may be referred to as the "second member 33".

[0018] In each support leg 30, the first member 32 is provided along the longitudinal direction Y of the bed base 2, and the second member 33 is provided along the width direction X of the bed base 2. Further, each support leg 30 is provided upright from the installation surface F and overlaps with the corner of the bed base 2.

[0019] Four lower switching members 4 are provided. As shown in FIGS. 1 and 2, each lower switching member 4 is supported by each support leg 30 and is configured to be able to switch the installation height of the second bed base 22 between the lower first position 2A (the first height, shown in FIG. 1) and the lower second position 2B (the second height, shown in FIG. 2) lower than the lower first position 2A. The lower first position 2A is the height position of the second bed base 22 when used in the form 1A of a three-tiered bed, and the lower second position 2B is the height position of the second bed base 22 when used in the form 1B of a two-tiered bed.

[0020] As shown in FIG. 5, the lower switching member 4 includes a switching portion main body 60A extending in a predetermined one direction, and a plate-shaped rotating plate portion 61 (rotating portion) continuously provided on the switching portion main body 60A. The rotating plate portion 61 is provided to extend from an end portion in the longitudinal direction (predetermined one direction, extending direction) of the switching portion main body 60A.

[0021] In the present embodiment, as shown in FIGS. 3 and 4, the length L1 (shown in FIG. 4) in the longitudinal direction of the first plate 62, which will be described later, of the lower switching member 4 is configured to be longer than the length L2 (shown in FIG. 5) in the longitudinal direction of the first plate 62 of the switching portion main body 60B of the upper switching member 5, which will be described later (L1 > L2).

[0022] As shown in FIG. 5, the switching portion main body 60A integrally includes a strip-shaped first plate 62 continuous with the rotating plate portion 61 in the same plane, a second plate 63 rising from an end portion in the longitudinal direction of the first plate 62 and away from the rotating plate portion 61, and a third plate 64 rising from an end portion in the width direction of the first plate 62. In the present embodiment, one bolt hole 63a is provided in the second plate 63, and two bolt holes 64a and 64b are provided in the third plate 64.

[0023] The rotating plate portion 61 has a shaft hole 61a through which a pin B1 (rotating shaft portion) is inserted. With the pin B1 inserted through the shaft hole 61a as a shaft S (rotation center), the switching portion main body 60A is supported rotatably with respect to the support leg 30. At an end portion of the rotating plate portion 61 away from the switching portion main body 60A, a corner portion on the side of the third plate 64 is cut out to form an R shape.

[0024] Four upper switching members 5 are provided. As shown in FIGS. 1 and 2, each upper switching member 5 is supported by each support leg 30 and is configured to be able to switch the installation height of the third bed base 23 between an upper first position 3A (first height, shown in FIG. 1) and an upper second position 3B (second height, shown in FIG. 2) lower than the upper first position 3A. The upper first position 3A is the height position of the third bed base 23 when used in the form 1A of the three-tier bed, and the upper second position 3B is the height position of the third bed base 23 when used in the form 1B of the two-tier bed.

[0025] As shown in Figure 6, the upper switching member 5 comprises a switching section body 60B extending in a predetermined one direction, and a plate-shaped rotating plate portion 61 (rotating portion) that is continuously provided with the switching section body 60B and rotates the switching section body 60B relative to the support leg 30. The rotating plate portion 61 is provided extending from the end of the switching section body 60B in the longitudinal direction (a predetermined one direction, the extending direction).

[0026] Furthermore, for the upper switching member 5, parts having the same configuration or shape as the lower switching member 4 are given the same reference numerals, and their descriptions are omitted. The upper switching member 5 and the lower switching member 4 differ only in the length of the first plate 62 in the longitudinal direction.

[0027] The switching unit body 60B integrally comprises a strip-shaped first plate 62 that is continuous on the same plane as the rotating plate portion 61, a second plate 63 that rises from the end of the first plate 62 that is away from the rotating plate portion 61 in the longitudinal direction, and a third plate 64 that rises from the end of the first plate 62 in the width direction. In this embodiment, one bolt hole 63a is provided in the second plate 63, and two bolt holes 64a and 64b are provided in the third plate 64.

[0028] Next, the procedure for switching the installation height of the second floor platform 22 from the lower first position 2A (shown in Figures 1 and 3(A)) to the lower second position 2B (shown in Figures 2 and 3(B)) using the lower switching member 4 will be explained below.

[0029] As shown in Figure 3(A), the second floor platform 22, located at the lower first position 2A, has the rotating plate portion 61 and the first plate 62 overlapping the first member 32 of the support leg 30, the second plate 63 overlapping the bottom surface portion 27 of the second floor platform 22, and the third plate 64 overlapping the second member 33 of the support leg 30.

[0030] Furthermore, pin B1 is inserted through the shaft hole 61a and a pin hole provided in the first material 32, and the switching unit body 60A is rotatably supported with respect to the support leg 30 with pin B1 as the axis S (center of rotation). In addition, the second bolt B2 is inserted through a bolt hole provided in the bottom surface 27 of the second base 22 and a bolt hole 63a of the second plate 63 and fastened with a nut N, thereby bolting the second plate 63 and the bottom surface 27 of the second base 22. In addition, the third bolt B3 is inserted through a bolt hole provided in the second material 33 of the support leg 30 and a bolt hole 64a (64b) of the third plate 64 and fastened with a third nut N3, thereby bolting the third plate 64 and the second material 33 of the support leg 30. In this embodiment, the third nut N3 is fixed to the outer surface of the second material 33 of each support leg 30. According to this, the work can be performed only by accessing it from inside the bed.

[0031] When switching the installation height of the second bed base 22 from the lower first position 2A to the lower second position 2B, first release the bolt fixing using the second bolt B2, and then release the bolt fixing using the third bolt B3. Do not pull out the pin B1 from the shaft hole 61a of the rotating plate portion 61, etc. Perform this operation sequentially at the four locations located at the four corners of the second bed base 22.

[0032] Next, the second bed base 22 is lifted. While maintaining the lifted position, the switching unit body 60A is rotated 90 degrees around pin B1 as the rotation center S. This aligns the longitudinal direction of the switching unit body 60A with the longitudinal direction Y (horizontal direction). The second bed base 22 is then moved downward to Z2. The third plate 64 of the switching unit body 60A is placed on top of the bottom surface 27 of the second bed base 22. After this, the third bolt B3 is inserted through the bolt hole provided in the bottom surface 27 of the second bed base 22 and the bolt hole 64a (64b) of the third plate 64, and fastened with a nut N. In this way, the third plate 64 of the switching unit body 60A is bolted to the bottom surface 27 of the second bed base 22. Thus, the second bed base 22 is positioned at the lower second position 2B.

[0033] In this way, the switching of the installation height of the second bed base 22 from the lower first position 2A to the lower second position 2B is completed.

[0034] Next, when switching the installation height of the second bed base 22 from the lower second position 2B (shown in Figures 1 and 3(B)) to the lower first position 2A (shown in Figures 1 and 3(A)), first release the bolt fixing using the third bolt B3. Do not pull out the pin B1 from the shaft hole 61a of the rotating plate portion 61, etc. Perform this operation sequentially at the four locations located at the four corners of the second bed base 22.

[0035] Next, the second bed base 22 is moved upward Z1, and the switching unit body 60A is rotated 90 degrees with pin B1 as the rotation center S. As a result, the longitudinal direction of the switching unit body 60A aligns with the vertical direction Z.

[0036] Subsequently, as shown in Figure 3(A), the rotating plate portion 61 and the first plate 62 are placed on the first member 32 of the support leg 30, the second plate 63 is placed on the bottom surface portion 27 of the second floor base 22, and the third plate 64 is placed on the second member 33 of the support leg 30. In this state, the second plate 63 and the bottom surface portion 27 of the second floor base 22 are bolted together, and the third plate 64 and the second member 33 of the support leg 30 are bolted together. In this way, the second floor base 22 is positioned at the lower first position 2A.

[0037] According to this, the second platform 22 can be displaced between the lower first position 2A and the lower second position 2B without moving it from the internal space of the four support legs 30 that constitute the support frame member 3 to the outside. This allows the installation height of the second platform 22 to be switched between the lower first position 2A and the lower second position 2B within the limited space of a ship.

[0038] In this way, the switching of the installation height of the second bed base 22 from the lower second position 2B to the lower first position 2A is completed.

[0039] Next, the procedure for switching the installation height of the third floor platform 23 from the upper first position 3A (shown in Figures 1 and 4(A)) to the upper second position 3B (shown in Figures 2 and 4(B)) using the upper switching member 5 will be explained below.

[0040] As shown in Figure 4(A), the third floor platform 23, located at the upper first position 3A, has its rotating plate portion 61 and first plate 62 overlapping the second member 33 of the support leg 30, the second plate 63 overlapping the bottom surface portion 27 of the third floor platform 23, and the third plate 64 overlapping the first member 32 of the support leg 30.

[0041] Furthermore, pin B1 is inserted through the shaft hole 61a and a pin hole provided in the second material 33, and the switching unit body 60B is rotatably supported with respect to the support leg 30 with pin B1 as the axis S (center of rotation). In addition, the second bolt B2 is inserted through the bolt hole provided in the bottom surface 27 of the third base 23 and the bolt hole 63a of the second plate 63 and fastened with a nut N, thereby bolting the second plate 63 and the bottom surface 27 of the third base 23. In addition, the third bolt B3 is inserted through the bolt hole provided in the first material 32 of the support leg 30 and the bolt hole 64a (64b) of the third plate 64 and fastened with a third nut N3, thereby bolting the third plate 64 and the first material 32 of the support leg 30. In this embodiment, the third nut N3 is fixed to the outer surface of the first material 32 of each support leg 30. According to this, the work can be performed only by accessing it from inside the bed.

[0042] When switching the installation height of the third bed base 23 from the upper first position 3A to the upper second position 3B, first release the bolt fixing using the second bolt B2, and then release the bolt fixing using the third bolt B3. Do not pull out the pin B1 from the shaft hole 61a of the rotating plate portion 61, etc. Perform this operation sequentially at the four locations located at the four corners of the third bed base 23.

[0043] Next, the third bed base 23 is lifted. While maintaining the lifted position, the switching unit body 60B is rotated 90 degrees with pin B1 as the rotation center S. This causes the longitudinal direction of the switching unit body 60B to align with the longitudinal direction Y (horizontal direction). The third bed base 23 is then moved downward to Z2. The third plate 64 of the switching unit body 60B is placed on top of the bottom surface 27 of the third bed base 23. In this state, the third bolt B3 is inserted through the bolt hole provided in the bottom surface 27 of the third bed base 23 and the bolt hole 64a (64b) of the third plate 64, and fastened with a nut N, thereby bolting the third plate 64 of the switching unit body 60B to the bottom surface 27 of the third bed base 23. In this way, the third bed base 23 is positioned at the upper second position 3B.

[0044] In this way, the switching of the installation height of the third floor platform 23 from the upper first position 3A to the upper second position 3B is completed.

[0045] Next, when switching the installation height of the third bed base 23 from the upper second position 3B (shown in Figures 1 and 4(B)) to the upper first position 3A (shown in Figures 1 and 4(A)), first release the bolt fixing using the third bolt B3. Do not pull out the pin B1 from the shaft hole 61a of the rotating plate portion 61, etc. Perform this operation sequentially at the four locations located at the four corners of the third bed base 23.

[0046] Next, the third bed base 23 is moved upward Z1, and the switching unit body 60B is rotated 90 degrees with pin B1 as the rotation center S. As a result, the longitudinal direction of the switching unit body 60B aligns with the vertical direction Z.

[0047] Subsequently, as shown in Figure 4(A), the rotating plate portion 61 and the first plate 62 are placed on the second member 33 of the support leg 30, the second plate 63 is placed on the bottom surface portion 27 of the third floor base 23, and the third plate 64 is placed on the first member 32 of the support leg 30. In this state, the second plate 63 and the bottom surface portion 27 of the third floor base 23 are bolted together, and the third plate 64 and the first member 32 of the support leg 30 are bolted together. In this way, the third floor base 23 is positioned at the upper first position 3A.

[0048] According to this, the third platform 23 can be displaced between the upper first position 3A and the upper second position 3B without moving it from the internal space of the four support legs 30 that constitute the support frame member 3 to the outside. This allows the installation height of the third platform 23 to be switched between the upper first position 3A and the upper second position 3B within the limited space of a ship.

[0049] In this way, the switching of the installation height of the third floor platform 23 from the upper second position 3B to the upper first position 3A is completed.

[0050] Such a bed 1 can be used as a three-tiered bed in configuration 1A when the second bed base 22 is at the lower first position 2A (first height) and the third bed base 23 is at the upper first position 3A (first height), or as a two-tiered bed in configuration 1B when the second bed base 22 is at the lower second position 2B (second height) and the third bed base 23 is at the upper second position 3B (second height).

[0051] According to the embodiment described above, the switching member 4(5) comprises a switching unit body 60A(60B) and a rotating plate portion 61 (rotating portion) that is continuous with the switching unit body 60A(60B) and has an axial hole 61a. With the rotating plate portion 61 (rotating portion) of the switching member 4(5) rotatably supported with respect to the support leg 30, the switching unit body 60A(60B) can be rotated to switch between a three-tiered bed configuration 1A (first configuration) in which the bed bases 21, 22, and 23 are supported at a first height, and a two-tiered bed configuration 1B (second configuration) in which the bed bases 21, 22, and 23 are supported at a second height. According to this, the switching member 4(5) can be switched between the three-tiered bed configuration 1A and the two-tiered bed configuration 1B while remaining supported by the support leg 30. This reduces the concern of parts falling off, as in the conventional technology, and improves the work efficiency when switching the installation height of the bed base 2.

[0052] Furthermore, in this embodiment, the lower switching member 4 and the second floor base 22 are bolted together, and the upper switching member 5 and the third floor base 23 are bolted together, resulting in a structure that is less prone to generating noise due to ship vibrations and shocks. In addition, unlike the conventional technology, the switching member 4 (5) and the floor base 22 (23) can be fixed together without forming slit-shaped fitting holes in the support legs, resulting in a structure that is less likely to experience a reduction in strength.

[0053] Furthermore, in the three-tiered bed configuration 1A (first configuration), the third plate 64 and the support legs 30 are fixed using a third bolt B3 and a third nut N3, with the third nut N3 fixed to the outer surface of the support legs 30, that is, to the outer surfaces of the first member 32 and the second member 33 that constitute the support legs 30. This allows work to be performed only by accessing from inside the bed, and even if there are other structures around the bed 1, the installation height of the bed bases 22 and 23 can be changed without moving the other structures.

[0054] Furthermore, the rotation axis direction (width direction X) of the rotating plate portion 61 in the lower switching member 4 and the rotation axis direction (longitudinal direction Y) of the rotating plate portion 61 in the upper switching member 5 are perpendicular to each other. As a result, the lower switching member 4 and the upper switching member 5 are spanned across the support leg 30 in directions perpendicular to each other, and the load acting on the support leg 30 is distributed, thereby suppressing the bending of the support leg 30.

[0055] Furthermore, the longitudinal dimension L1 of the first plate 62 of the lower switching member 4 is configured to be longer than the longitudinal dimension L2 of the first plate 62 of the upper switching member 5. This configuration allows the bed 1 to be used as a three-tiered bed in form 1A (first form) when the second bed base 22 is at the lower first position 2A (first height) and the third bed base 23 is at the upper first position 3A (first height), and to be used as a two-tiered bed in form 1B (second form) when the second bed base 22 is at the lower second position 2B (second height) and the third bed base 23 is at the upper second position 3B (second height).

[0056] Furthermore, while the best configurations and methods for carrying out the present invention are disclosed in the above description, the present invention is not limited thereto. That is, although the present invention is particularly illustrated and described with respect to specific embodiments, those skilled in the art can make various modifications to the embodiments described above in terms of shape, material, quantity, and other detailed configurations without departing from the scope of the technical idea and objectives of the present invention. Therefore, the descriptions of shapes, materials, etc. disclosed above are illustrative to facilitate understanding of the present invention and do not limit the present invention. Accordingly, descriptions of components with some or all of these limitations removed are included in the present invention. [Explanation of Symbols]

[0057] 1 bed 30 Support legs 1A 3-tier bunk bed (first form) 1B Bunk Bed (Second Form) 22 Second floor stand (lower floor stand, floor stand) 23 Third floor stand (upper floor stand, floor stand) 2A Lower first position (first height) 2B Lower second position (second height) 3A Upper first position (first height) 3B Upper second position (second height) 4. Downward switching member (switching member) 5. Upward switching member (switching member) 60A switching unit body 60B Switching Unit 61 Rotating part 61a Axial hole 62 1st board 63 2nd board 64 3rd board B1 Pin (rotating shaft part) S is the center of rotation. F Installation surface L1 Longitudinal dimension of the first plate of the downward switching member Longitudinal dimension of the first plate of the L2 upper switching member X Width direction of the platform (rotation axis direction of the rotating part in the downward switching member) Y Longitudinal direction of the floor platform (rotation axis direction of the rotating part in the upper switching member) Z1 upper Z2 downward

Claims

1. Floor stand and, Support legs with an L-shaped cross-section are erected from the mounting surface and support the four corners of the floor base, The system includes a switching member that can switch between a first configuration in which the floor base is supported at a first height, and a second configuration in which the floor base is supported at a second height lower than the first height. The switching member comprises a switching section body and a rotating section that is continuous with the switching section body and has an axial hole. The switching unit body integrally comprises a first plate that is continuous with the rotating part and extends away from the rotating part, a second plate that rises from the end of the first plate that is away from the rotating part in the extending direction, and a third plate that rises from the end of the first plate in a direction perpendicular to the extending direction. The first and second forms are switchable, with the switching unit body rotatably supported relative to the support leg, with the rotating shaft portion inserted through the aforementioned shaft hole as the center of rotation. In the first embodiment, the first plate extends vertically, the second plate and the floor base are fixed together, and the third plate and the support legs are fixed together. The second embodiment is a bed characterized in that the first plate extends horizontally and the third plate and the bed base are fixed together.

2. In the first embodiment, the third plate and the support leg are fixed using a third bolt and a third nut. The bed according to claim 1, characterized in that the third nut is fixed to the outer surface of the support leg.

3. The aforementioned floor platform comprises a lower floor platform and an upper floor platform located above the lower floor platform. The switching member comprises a lower switching member fixed to the lower floor base and an upper switching member fixed to the upper floor base. The bed according to claim 1 or 2, characterized in that the rotation axis direction of the rotating part in the downward switching member and the rotation axis direction of the rotating part in the upward switching member are in mutually orthogonal directions.

4. The aforementioned floor platform is provided in a rectangular shape when viewed from above. The downward switching member is rotatably mounted on the support leg such that the width direction of the lower floor platform is the axis of rotation, The upper switching member is rotatably mounted on the support leg such that the longitudinal direction of the upper floor platform is the axis of rotation, The bed according to claim 3, characterized in that the longitudinal dimension of the first plate of the downward switching member is longer than the longitudinal dimension of the first plate of the upward switching member.

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