Bottom device

Abstract

To provide a convenient bottom device and bed device.SOLUTION: A bottom device comprises a first bottom including a first part and a second part. The second part is connected to the first part via a first connection part. The second part can be overlapped with the first part. The first part or the second part has holes. A lower part of each one of projection members can be fixed to the hole.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to a bottom device. [Background technology]

[0002] In the bed apparatus, a bottom device is provided on a frame. A more convenient bottom device and bed apparatus are desired. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-166697 Summary of the Invention [Problem to be solved by the invention]

[0004] Embodiments of the present invention provide a more convenient bottom device. [Means for solving the problem]

[0005] According to an embodiment, the bottom device includes a first bottom including a first portion and a second portion, the second portion being connected to the first portion via a first connecting portion, and the second portion overlapping the first portion. [Effects of the Invention]

[0006] Embodiments of the present invention can provide a more convenient bottom device. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic perspective view illustrating a bottom device and a bed device according to the first embodiment. [Figure 2] 2(a) and 2(b) are schematic side views illustrating the bottom device and the bed device according to the first embodiment. [Figure 3]FIG. 3 is a schematic perspective view illustrating a part of the bottom device according to the first embodiment. [Figure 4] 4(a) and 4(b) are schematic cross-sectional views illustrating the bottom device and the bed device according to the first embodiment. [Figure 5] 5A and 5B are schematic cross-sectional views illustrating a part of the bottom device according to the first embodiment. [Figure 6] FIG. 6 is a schematic perspective view illustrating a part of the bottom device according to the first embodiment. [Figure 7] 7(a) and 7(b) are schematic cross-sectional views illustrating the bottom device and the bed device according to the first embodiment. [Figure 8] 8A and 8B are schematic cross-sectional views illustrating a part of the bottom device according to the first embodiment. [Figure 9] 9(a) to 9(e) are schematic views illustrating a part of the bottom device according to the first embodiment. [Figure 10] 10(a) to 10(c) are schematic views illustrating a part of the bottom device according to the first embodiment. [Figure 11] 11(a) to 11(c) are schematic views illustrating a part of the bottom device according to the first embodiment. [Figure 12] 12(a) to 12(d) are schematic views illustrating a part of the bottom device according to the first embodiment. [Figure 13] 13A and 13B are schematic views illustrating a part of the bottom device according to the first embodiment. [Figure 14] 14A and 14B are schematic perspective views illustrating a part of the bottom device according to the first embodiment. [Figure 15] 15(a) to 15(c) are schematic perspective views illustrating a part of the bottom device according to the first embodiment. [Figure 16] 16(a) and 16(b) are schematic side views illustrating a part of the bottom device according to the first embodiment. [Figure 17]FIG. 17 is a schematic side view illustrating a part of the bottom device according to the first embodiment. [Figure 18] FIG. 18 is a schematic side view illustrating a part of the bottom device according to the first embodiment. [Figure 19] FIG. 19 is a schematic perspective view illustrating a part of the bottom device according to the first embodiment. [Figure 20] 20(a) and 20(b) are schematic views illustrating a part of the bottom device according to the first embodiment. [Figure 21] FIG. 21 is a schematic view illustrating a part of the bottom device according to the first embodiment. [Figure 22] FIG. 22 is a schematic view illustrating a part of the bottom device according to the first embodiment. [Figure 23] FIG. 23 is a schematic view illustrating a part of the bottom device according to the first embodiment. [Figure 24] FIG. 24 is a schematic perspective view illustrating the bed apparatus according to the second embodiment. [Figure 25] FIG. 25 is a schematic perspective view illustrating the bed apparatus according to the second embodiment. [Figure 26] FIG. 26 is a schematic side view illustrating the bed apparatus according to the second embodiment. [Figure 27] FIG. 27 is a schematic side view illustrating the bed apparatus according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The drawings are schematic or conceptual. In the present specification and the drawings, elements similar to those described above with reference to the previous drawings are designated by the same reference numerals, and detailed descriptions thereof will be omitted where appropriate.

[0009] (First embodiment) FIG. 1 is a schematic perspective view illustrating a bottom device and a bed device according to the first embodiment. 1, the bottom device 170 according to the embodiment is used in a bed device 310. For example, the bed device 310 includes the bottom device 170 and a frame 70F.

[0010] For example, the bottom device 170 is provided on the frame 70F. The bottom device 170 is fixed to the frame 70F.

[0011] The bottom device 170 includes, for example, a first bottom 10. The bottom device 170 may include a second bottom 20. The first bottom 10 and the second bottom 20 are fixed to the frame 70F.

[0012] The first bottom 10 is, for example, at least a part of a back bottom. The second bottom 20 is at least a part of a leg bottom. The second bottom 20 may further include, for example, a knee bottom. The second bottom 20 may further include, for example, a waist bottom.

[0013] The second bottom 20 can be connected to the first bottom 10. In this example, the deformable portion 25 of the second bottom 20 is provided on top of a portion of the first bottom 10. The portion of the first bottom 10 and the deformable portion 25 are connected to each other.

[0014] The direction from the head to the foot of the bed 70B is the X-axis direction. The left-right direction of the bed 70B is the Y-axis direction. The height direction of the bed 70B is the Z-axis direction. For example, the direction from the first bottom part 10 to the second bottom part 20 is along the X-axis direction.

[0015] 1, the first bottom 10 includes a first portion 11 and a second portion 12. The second bottom 20 includes a third portion 23 and a fourth portion 24.

[0016] In one state, the direction from the second portion 12 to the first portion 11 is along the first direction. The first direction corresponds to the X-axis direction. For example, the first direction is along the up-and-down direction of the bed 70B. In one state, the direction from the third portion 23 to the fourth portion 24 is along the first direction (X-axis direction).

[0017] As will be explained below, the first bottom 10 has a number of states. In different states, the relative positions of the first portion 11 and the second portion 12 change, thereby changing the length of the first bottom 10. The second bottom 20 has a number of states. In different states, the relative positions of the third portion 23 and the fourth portion 24 change, thereby changing the length of the second bottom 20. Examples of these states will be explained below.

[0018] 2(a) and 2(b) are schematic side views illustrating the bottom device and the bed device according to the first embodiment. As shown in FIG. 2(a), the first bottom 10 is in a first state ST1. As shown in FIG. 2(b), the first bottom 10 is in a second state ST2. As shown in FIG. 2(a), the second bottom 20 is in a third state ST3. As shown in FIG. 2(b), the second bottom 20 is in a fourth state ST4.

[0019] In the first state ST1, the direction from the second portion 12 to the first portion 11 is along the X-axis direction. In the first state ST1, the first portion 11 is between the second portion 12 and the second bottom 20 in the first direction (X-axis direction).

[0020] 2(b), in the second state ST2, the direction from the first portion 11 to the second portion 12 is along the Z-axis direction. The length of the first bottom 10 in the second state ST2 is shorter than the length of the first bottom 10 in the first state ST1.

[0021] In the third state ST3, the direction from the third portion 23 to the fourth portion 24 is along the X-axis direction. As shown in FIG. 2(b), in the fourth state ST4, the direction from the third portion 23 to the fourth portion 24 is along the Z-axis direction. The length of the second bottom 20 in the fourth state ST4 is shorter than the length of the second bottom 20 in the third state ST3.

[0022] The bottom device 170 has a long state ST01 and a short state ST02. For example, in the long state ST01, the first bottom 10 is in the first state ST1, and the second bottom 20 is in the third state ST3. In the short state ST02, the first bottom 10 is in the second state ST2, and the second bottom 20 is in the fourth state ST4.

[0023] The length of the bottom device 170 changes in accordance with the change in the length of the first bottom device 10 and the length of the second bottom device 20. For example, the length L01 of the bottom device 170 in the long state ST01 is longer than the length L02 of the bottom device 170 in the short state ST02. These lengths are, for example, lengths along the X-axis direction.

[0024] According to the embodiment, a bottom device whose length can be easily changed can be provided. The appropriate size (length) of the bottom device depends on the height of the user of the bed 70B, etc. The appropriate size (length) of the bottom device may also depend on the size of the room. In the embodiment, the length of the bottom device can be easily changed depending on the usage situation. According to the embodiment, a more convenient bottom device and bed device can be provided.

[0025] An example of the first bottom 10 will be described below. FIG. 3 is a schematic perspective view illustrating a part of the bottom device according to the first embodiment. 4(a) and 4(b) are schematic cross-sectional views illustrating the bottom device and the bed device according to the first embodiment. 4(a) and 4(b) are cross-sectional views along the XZ plane.

[0026] 3 illustrates the first bottom portion 10 in a first state ST1. In the first state ST1, the second portion 12 is aligned with the first portion 11 in the X-axis direction. In this state, the length of the first bottom portion 10 (first length L1) corresponds to the length along the X-axis direction between both ends (ends 10E and 10F) of the first bottom portion 10. The direction from end 10F to end 10E is along the X-axis direction.

[0027] In this example, the second portion 12 is connected to the first portion 11 by the first connecting portion 10c. The second portion 12 is rotatable around the first connecting portion 10c as a substantial axis. By rotating the second portion 12, the second portion 12 is positioned above the first portion 11. This state corresponds to the second state ST2.

[0028] As shown in FIG. 4(a), the first portion 11 includes a first surface 11a and a second surface 11b. The first surface 11a is, for example, the bottom surface. The second surface 11b is the top surface. The second portion 12 includes a third surface 12c and a fourth surface 12d. In the first state ST1, the third surface 12c corresponds to, for example, the bottom surface. In the first state ST1, the fourth surface 12d corresponds to the top surface.

[0029] For example, in the first state ST1, the first surface 11a faces the first frame portion 70Fa of the frame 70F. The first surface 11a is located between the first frame portion 70Fa and the second surface 11b.

[0030] In the first state ST1, the third surface 12c faces the second frame portion 70Fb of the frame 70F. The third surface 12c is located between the second frame portion 70Fb and the fourth surface 12d.

[0031] As shown in Figure 4(b), in the second state ST2, the first surface 11a is between the frame 70F and the third surface 12c. The second surface 11b is between the first surface 11a and the third surface 12c. The fourth surface 12d is between the second surface 11b and the third surface 12c. In the second state ST2, the third surface 12c is the upper surface, and the fourth surface 12d is the lower surface.

[0032] In the first state ST1, the direction from the second portion 12 to the first portion 11 is along the first direction (X-axis direction). A first length L1 of the first bottom 10 along the first direction in the first state ST1 is longer than a second length L2 of the first bottom 10 in the second state ST2.

[0033] By folding the second portion 12, the second portion 12 is positioned above the first portion 11. This allows for easy transition from the first state ST1 to the second state ST2. By rotating the second portion 12, the second portion 12 moves from a position above the first portion 11. This allows for easy transition from the second state ST2 to the first state ST1. The length can be easily changed.

[0034] Thus, in the first state ST1 of the first bottom 10, the direction from the second portion 12 to the first portion 11 is along the first direction. In the first state ST1, the direction from the third surface 12c to the first surface 11a is along the first direction. In the first state ST1, the direction from the fourth surface 12d to the second surface 11b is along the first direction. For example, the first direction is the X-axis direction.

[0035] The direction from the third surface 12c to the fourth surface 12d in the first state ST1 is along a second direction that intersects with the first direction. For example, the second direction is perpendicular to the first direction. For example, the second direction is the Z-axis direction. For example, the second direction is the height direction of the bed 70B. The direction from the first surface 11a to the second surface 11b in the first state ST1 is along the second direction.

[0036] In the second state ST2 of the first bottom 10, the second surface 11b is located between the first surface 11a and the third surface 12c. In the second state ST2, the fourth surface 12d is located between the second surface 11b and the third surface 12c.

[0037] For example, the second portion 12 is continuous with the first portion 11. In this example, the first portion 11 and the second portion 12 are connected to each other by the first connecting portion 10c. The first connecting portion 10c may be considered to be part of the first portion 11. The first connecting portion 10c may be considered to be part of the second portion 12. The first portion 11, the second portion 12, and the first connecting portion 10c may be formed by integral molding.

[0038] For example, in the second state ST2, the second portion 12 overlaps with the first portion 11 in the second direction (the height direction of the bed 70B, that is, the Z-axis direction). In the first state ST1, the second portion 12 does not overlap with the first portion 11 in the second direction. The relative positional relationship between the first portion 11 and the second portion 12 changes due to rotation. The length of the first bottom portion 10 can be easily changed.

[0039] 4(a) and 4(b), the length of the frame 70F in the first direction (X-axis direction) may be changeable. For example, the second frame portion 70Fb is slidable relative to the first frame portion 70Fb. This changes the position of the second frame portion 70Fb relative to the first frame portion 70Fa.

[0040] For example, the second frame portion 70Fb has an elongated hole 70Fh. The elongated hole 70Fh extends in the X-axis direction. The second frame portion 70Fb is fixed to the first frame portion 70Fa by a pin 70Fp via the elongated hole 70Fh. The length of the frame 70F along the X-axis direction can be changed by changing the position of the elongated hole 70Fh into which the pin 70Fp is inserted. The elongated hole 70Fh may be provided in the first frame portion 70Fa, and the first frame portion 70Fa and the second frame portion 70Fb may be fixed to each other by the pin 70Fp via the elongated hole 70Fh.

[0041] 3, in the first state ST1, the width W12 of the second portion 12 decreases in the direction from the first portion 11 to the second portion 12. The width W12 corresponds to the length of the second portion 12 in the third direction. The third direction intersects with a plane including the first direction and the second direction. The third direction is, for example, the Y-axis direction.

[0042] For example, in the first state ST1, the width W12 decreases from the first portion 11 toward the end of the second portion 12. As a result, the sides of the end of the first bottom portion 10 are inclined in the XY plane. With this shape, the corners of the first bottom portion 10 in the first state ST1 are inclined. This prevents the user of the bed apparatus 310 or a caregiver from hitting the corners.

[0043] 5A and 5B are schematic cross-sectional views illustrating a part of the bottom device according to the first embodiment. These figures are cross-sectional views along the XZ plane, and illustrate cross sections different from those in Figures 4(a) and 4(b).

[0044] 5(a) and 3, for example, the first portion 11 may include a recessed region 11D. The second portion 12 may include a protruding region 12P. As shown in FIG. 5(b), in the second state ST2, the protruding region 12P enters the recessed region 11D. For example, the second portion 12 is stably fitted into the first portion 11.

[0045] 5(a), a first thickness d1 along the second direction (height direction, Z-axis direction) of at least a part of the first portion 11 may be thinner than a second thickness d2 along the second direction (height direction, Z-axis direction) of at least a part of the second portion 12. For example, in the first state ST2, the thinner portion of the first portion 11 may overlap the thicker portion of the second portion 12.

[0046] For example, in the first state ST1, by providing the convex region 12P in the second portion 12, when a mattress is placed on the second portion 12, the mattress is supported by the convex region 12P, making it easier for the mattress to become flat.

[0047] 5(a), the first portion 11 includes a first concave-convex portion 11A. The second portion 12 includes a second concave-convex portion 12A. In this example, the first concave-convex portion 11A is a convex portion, and the second concave-convex portion 12A is a concave portion.

[0048] 5(b), in the second state ST2, the first concave-convex portion 11A and the second concave-convex portion 12A are interlocked with each other. This stabilizes the position of the second portion 12 relative to the first portion 11 in the second state ST2. For example, in the second state ST2, the state in which the height of the upper surface (third surface 12c) of the second portion 12 is substantially the same as the height of the upper surface of the first portion 11 is stable. This makes it easier to obtain a flat upper surface.

[0049] An example of the second bottom 20 will be described below. FIG. 6 is a schematic perspective view illustrating a part of the bottom device according to the first embodiment. 7(a) and 7(b) are schematic cross-sectional views illustrating the bottom device and the bed device according to the first embodiment. 7(a) and 7(b) are cross-sectional views along the XZ plane.

[0050] 6 illustrates the second bottom portion 20 in the fourth state ST4. In the fourth state ST4, the fourth portion 24 is aligned with the third portion 23 in the X-axis direction. In this state, the length of the second bottom portion 20 (fourth length L4) corresponds to the length along the X-axis direction between both ends (end 20E and end 20F) of the second bottom portion 20. The direction from end 20E to end 20F is along the X-axis direction.

[0051] In this example, the fourth portion 24 is connected to the third portion 23 by the second connecting portion 20c (see FIGS. 7(a) and 7(b)). The fourth portion 24 is rotatable around the second connecting portion 20c as a substantial axis. By rotating the fourth portion 24, the fourth portion 24 is positioned above the third portion 23. This state corresponds to the fourth state ST4.

[0052] As shown in FIG. 7(a), the third portion 23 includes a fifth surface 23e and a sixth surface 23f. The fifth surface 23e is, for example, the bottom surface. The sixth surface 23f is the top surface. The fourth portion 24 includes a seventh surface 24g and an eighth surface 24h. In the third state ST3, the seventh surface 24g corresponds to, for example, the bottom surface. In the third state ST3, the eighth surface 24h corresponds to the top surface.

[0053] For example, in the third state ST3, the fifth surface 23e faces the third frame portion 70Fc of the frame 70F. In the third state ST3, the fifth surface 23e is between the third frame portion 70Fc and the sixth surface 23f.

[0054] In the third state ST3, the seventh surface 24g faces the fourth frame portion 70Fd of the frame 70F. In the third state ST3, the seventh surface 24g is located between the fourth frame portion 70Fd and the eighth surface 24h.

[0055] As shown in Figure 7(b), in the fourth state ST4, the fifth surface 23e is between the frame 70F and the seventh surface 24g. The sixth surface 23f is between the fifth surface 23e and the seventh surface 24g. The eighth surface 24h is between the sixth surface 23f and the seventh surface 24g. In the fourth state ST4, the seventh surface 24g is the upper surface, and the eighth surface 24h is the lower surface.

[0056] In the third state ST3, the direction from the third portion 23 to the fourth portion 24 is along the first direction (X-axis direction). A third length L3 of the second bottom 20 along the first direction (X-axis direction) in the third state ST3 is longer than a fourth length L4 of the second bottom 20 in the fourth state ST4.

[0057] For example, by folding the fourth portion 24, the fourth portion 24 is positioned above the third portion 23. This allows for easy transition from the third state ST3 to the fourth state ST4. By rotating the fourth portion 24, the fourth portion 24 moves from its position above the third portion 23. This allows for easy transition from the fourth state ST4 to the third state ST3. The length can be easily changed.

[0058] As described above, in the third state ST3 of the second bottom 20, the direction from the third portion 23 to the fourth portion 24 is along the first direction (e.g., the X-axis direction). The direction from the fifth surface 23e to the seventh surface 24g in the third state ST3 and the direction from the sixth surface 23f to the eighth surface 24h in the third state ST3 are along the first direction. The direction from the fifth surface 23e to the sixth surface 23f in the third state ST3 and the direction from the seventh surface 24g to the eighth surface 24h in the third state ST3 are along the second direction (e.g., the Z-axis direction). In the fourth state ST4 of the second bottom 20, the direction from the third portion 23 to the fourth portion 24 is along the second direction. In the fourth state ST4, the sixth surface 23f is between the fifth surface 23e and the seventh surface 24g. In the fourth state ST4, the eighth surface 24h is located between the sixth surface 23f and the seventh surface 24g.

[0059] For example, the fourth portion 24 is continuous with the third portion 23. In this example, the third portion 23 and the fourth portion 24 are connected to each other by the second connecting portion 20c (see FIGS. 7(a) and 7(b)). The second connecting portion 20c may be considered to be part of the third portion 23. The second connecting portion 20c may be considered to be part of the fourth portion 24. The third portion 23, the fourth portion 24, and the second connecting portion 20c may be formed by integral molding.

[0060] 7(b), in the fourth state ST4, the fourth portion 24 overlaps with the third portion 23 in the second direction (the height direction, that is, the Z-axis direction). As shown in FIG. 7(a), in the third state ST3, the fourth portion 24 does not overlap with the third portion 23 in the second direction.

[0061] For example, the fourth frame portion 70Fd is slidable relative to the third frame portion 70Fc, thereby changing the position of the fourth frame portion 70Fd relative to the third frame portion 70Fc.

[0062] For example, the fourth frame portion 70Fd has an elongated hole 70Fi. The elongated hole 70Fi extends in the X-axis direction. The fourth frame portion 70Fd is fixed to the third frame portion 70Fc by a pin 70Fq via the elongated hole 70Fi. The length of the frame 70F along the X-axis direction can be changed by changing the position of the elongated hole 70Fi into which the pin 70Fq is inserted. The third frame portion 70Fc may be provided with an elongated hole 70Fi, and the third frame portion 70Fc and the fourth frame portion 70Fd may be fixed to each other by the pin 70Fq via the elongated hole 70Fi.

[0063] As shown in FIGS. 6, 7(a), and 7(b), the third portion 23 may include a retracted portion 23R. The retracted portion 23R retracts along the first direction (X-axis direction). As shown in FIG. 7(b), in the fourth state ST4, a gap 23G is formed between the retracted portion 23R and the fourth portion 24. The length of the gap 23G along the first direction (X-axis direction) is, for example, 2 mm or more. By inserting a tool or the like into the gap 23G and operating it, the fourth portion 24 can be easily rotated from a position overlapping with the third portion 23. The length of the gap 23G along the first direction (X-axis direction) may be 8 mm or more. For example, by providing such a gap 23G, a worker or the like can easily insert their hand into the gap 23G and rotate the fourth portion 24 from a position overlapping with the third portion 23. This makes it easier to transition from the fourth state ST4 to the third state ST3. The first bottom 10 (for example, at least a part of the back bottom) may have a recessed portion, similar to the second bottom 20 (for example, at least a part of the leg bottom).

[0064] 8A and 8B are schematic cross-sectional views illustrating a part of the bottom device according to the first embodiment. Figures 8(a) and 8(b) are cross-sectional views taken along the XZ plane, illustrating cross sections different from those of Figures 7(a) and 7(b).

[0065] As shown in FIG. 8(a), for example, the third portion 23 may include a recessed region 23D. The fourth portion 24 may include a protruding region 24P. As shown in FIG. 8(b), in the fourth state ST4, the protruding region 24P fits into the recessed region 23D. For example, the fourth portion 24 is stably fitted into the third portion 23.

[0066] 8(a), the third portion 23 includes a third uneven portion 23A. The fourth portion 24 includes a fourth uneven portion 24A. In this example, the third uneven portion 23A is a convex portion, and the fourth uneven portion 24A is a concave portion.

[0067] 8(b), in the fourth state ST4, the third concave-convex portion 23A and the fourth concave-convex portion 24A are engaged with each other. This stabilizes the position of the fourth portion 24 relative to the third portion 23 in the fourth state ST4. For example, in the fourth state ST4, the height of the upper surface (seventh surface 24g) of the fourth portion 24 is stable, becoming substantially the same as the height of the upper surface of the third portion 23. This makes it easier to obtain a flat upper surface.

[0068] 9(a) to 9(e) are schematic views illustrating a part of the bottom device according to the first embodiment. 9(a) to 9(d) are perspective views of the first bottom 10 as viewed from the back surface side (for example, the side of the first surface 11a).

[0069] As shown in FIG. 9(b), the first bottom 10 may include a fixing member 15. In the first state ST1, the fixing member 15 fixes the first portion 11 and the second portion 12 together. For example, the fixing member 15 fixes the first portion 11 and the second portion 12 from the back surface side. In this example, one end of the fixing member 15 is fixed to the first portion 11 by a first screw member 15a. The other end of the fixing member 15 is fixed to the second portion 12 by a second screw member 15b. The fixing member 15 fixes the relative positions of the first portion 11 and the second portion 12. As a result, in the first state ST1, the first portion 11 and the second portion 12 are flat.

[0070] As shown in FIG. 9(c), in the second state ST2, the two ends of the fixing member 15 are fixed to the first portion 11.

[0071] 9(d), the fixing position of the second screw member 15b is different between the first state ST1 and the second state ST2. In the second state ST2, the second screw member 15b is inserted into the hole 11h of the first portion 11. In the first state ST1, the second screw member 15b is inserted into the hole 12h of the second portion 12.

[0072] As shown in FIG. 9( e ), the angle between the first portion 11 and the second portion 12 can be fixed by a fixing member 15 .

[0073] In this embodiment, a mattress is placed on the bottom device 170. A member for fixing the position of the mattress when the mattress is placed on the bottom device 170 may be provided. Examples of such a member will be described below.

[0074] 1 and 6, the second bottom 20 may include a protruding member 20M. The protruding member 20M protrudes upward from the third portion 23 or the fourth portion 24. The protruding member 20M is inserted into a hole provided in the third portion 23 or the fourth portion 24 and fixed to the third portion 23 or the fourth portion 24. For example, the protruding member 20M can be used commonly on both the side and foot sides.

[0075] 10(a) to 10(c) are schematic views illustrating a part of the bottom device according to the first embodiment. 11(a) to 11(c) are schematic views illustrating a part of the bottom device according to the first embodiment. 10(a) and 11(a), the third portion 23 includes a third hole 23H. The fourth portion 24 includes a fourth hole 24H. As shown in FIGS. 10(b) and 11(a), in the third state ST3, the lower portion of the protruding member 20M is inserted into and fixed in the fourth hole 24H.

[0076] 10(c), in the fourth state ST4, the lower portion of the protruding member 20M reaches the third hole 23H through the fourth hole 24H. For example, in the fourth state ST4, at least a portion of the third hole 23H overlaps with the fourth hole 24H. In the fourth state ST4, the protruding member 20M can be inserted through the fourth hole 24H and inserted into the third hole 23H to be fixed to the third portion 23 and the fourth portion 24.

[0077] 10(b) and 11(a), in the third state ST3, the protruding member 20M can be inserted into the fourth hole 24H and fixed to the fourth portion 24. One protruding member 20M can be applied to both the third state ST3 and the fourth state ST4.

[0078] 11(b), in the third state ST3, the fourth hole 24H does not overlap with the third portion 23. As shown in FIG. 10(c), in the fourth state ST4, the fourth hole 24H overlaps with the third portion 23, and at least a portion of the fourth hole 24H overlaps with the third hole 23H.

[0079] As shown in FIG. 11(c), the seventh surface 24g of the fourth portion 24 may include a protrusion 24gp. By providing the protrusion 24gp, the length of the protrusion member 20M inserted into the hole in the fourth state ST4 becomes substantially the same as the length of the protrusion member 20M inserted into the hole in the third state ST3 (see FIGS. 10(b) and 10(c)). The foot-side mattress stopper attachment hole can be inserted from either the top or bottom (front or back). Because the foot-side mattress stopper attachment hole is a molded resin product, one side may be tighter or looser due to the draft angle. By setting the mattress stopper attachment hole slope to 0 degrees, a stable fixed state can be achieved regardless of whether the protrusion member is inserted from the front or back. The 0-degree slope may be provided in only a portion of the mattress stopper attachment hole. A rib may be provided on a portion of the side of the protrusion member 20M inserted into the mattress stopper attachment hole.

[0080] 12(a) to 12(d) are schematic views illustrating a part of the bottom device according to the first embodiment. 13A and 13B are schematic perspective views illustrating a part of the bottom device according to the first embodiment. FIG. 13(b) is a cross-sectional view taken along line A1-A2 in FIG. 13(a).

[0081] As shown in FIG. 12(a), the third portion 23 and the fourth portion 24 may be formed parallel (horizontally) to each other. In this case, the distance between the third portion 23 and the fourth portion 24 becomes longer, which may cause the fourth portion 24 to rotate excessively downward. This may result in tilting in the opposite direction. In this case, as shown in FIG. 12(d), the insertion member 20X may limit the rotation of the fourth portion 24.

[0082] For example, as shown in Fig. 12(b), a gap 20G is provided between a part of the third portion 23 and a part of the fourth portion 24. As shown in Fig. 12(c), Fig. 13(a), and Fig. 13(b), in the third state ST3, an insertion member 20X is inserted into the gap 20G.

[0083] 12(d) and 13(b), the insertion member 20X is fixed so as to engage with the gap 20G. The insertion member 20X limits the rotation of the fourth portion 24, and prevents the fourth portion 24 from tilting in the opposite direction.

[0084] 14A and 14B are schematic perspective views illustrating a part of the bottom device according to the first embodiment. As shown in FIG. 14(a), a mark 23M may be provided on the sixth surface 23f of the third portion 23. In this example, the mark 23M is the letter "R." The letter "R" means, for example, "regular." In the third state ST3, the sixth surface 23f is exposed. By providing the mark 23M on the exposed surface, it is easy to see that the sixth surface 23f is in the "regular" state.

[0085] As shown in FIG. 14(b), a mark 24M may be provided on the seventh surface 24g of the fourth portion 24. In this example, the mark 24M is the letter "M." The letter "M" may mean, for example, "mini." In the fourth state ST4, the seventh surface 24g is the upper surface. By providing the mark 24M on the upper surface, it is easy to see that the state is the "mini."

[0086] 15(a) to 15(c) are schematic perspective views illustrating a part of the bottom device according to the first embodiment. 15(a), a contactable portion 10X is provided in a portion of the first bottom 10 where the first portion 11 and the second portion 12 face each other. In the contactable portion 10X, for example, a side surface of the first portion 11 and a side surface of the second portion 12 come into contact with each other.

[0087] As shown in FIG. 15(b), the first portion 11 includes a first side surface 11s. The second portion 12 includes a second side surface 12s. The first side surface 11s intersects with the first direction (X-axis direction). For example, at least a portion of the first side surface 11s extends in the Y-axis direction. The second side surface 12s intersects with the first direction (X-axis direction). For example, at least a portion of the second side surface 12s extends in the Y-axis direction.

[0088] As shown in FIG. 15(c), in the first state ST1, at least a portion of the second side surface 12s is in contact with the first side surface 11s.

[0089] For example, as shown in Figures 15(b) and 15(c), the second portion 12 is rotatable. As shown in Figure 15(c), in one state (first state ST1), at least a portion of the second side surface 12s abuts against the first side surface 11s. This prevents the second portion 12 from rotating excessively. As a result, for example, in the first state ST1, the fourth surface 12d of the second portion 12 is substantially parallel to the second surface 11b of the first portion 11. This prevents the second portion 12 from tilting in the opposite direction.

[0090] When the second portion 12 is not folded and the first bottom 10 (e.g., the back bottom) is flat (see FIG. 4(a)), the load applied to the second portion 12 is applied to, for example, the frame 70F (e.g., the second frame portion 70F). In the state illustrated in FIG. 4(a), the second portion 12 is supported by the frame 70F (e.g., the second frame portion 70F).

[0091] When the second portion 12 is not folded and the first bottom 10 (e.g., the back bottom) is in the upright position, the load applied to the second portion 12 is applied to the first portion 11, for example, by the first side surface 11s and the second side surface 12s coming into contact with each other (see FIG. 15(c)). The load applied to the second portion 12 may also be applied to the fixing member 15.

[0092] 16(a) and 16(b) are schematic side views illustrating a part of the bottom device according to the first embodiment. These figures illustrate one state of the second bottom 20 (e.g., foot bottom). In one example, the second bottom 20 includes a knee bottom 20A and a foot bottom 20B. In this example, the second bottom 20 includes a waist bottom 20C and a foot-side curved bottom 20D (lower curved bottom). The knee bottom 20A is located between the waist bottom 20C and the foot bottom 20B. The foot-side curved bottom 20D is located between the knee bottom 20A and the foot bottom 20B. The angles of these bottoms relative to each other are variable. The third portion 23 and the fourth portion 24 are included in the foot bottom 20B.

[0093] The state shown in Figure 16(a) is the leg-up state. In this state, the third portion 23 and the fourth portion 24 are separated from the frame 70F. In this state, the load applied to the fourth portion 24 is applied to the third portion 23, for example, via the insert member 20X (see Figure 16(b)).

[0094] FIG. 17 is a schematic side view illustrating a part of the bottom device according to the first embodiment. 17 illustrates one state of the second bottom 20 (e.g., foot bottom). In the state shown in FIG. 17, the knee is raised, and at least a part of the foot (fourth portion 24) is in contact with the frame 70F. In this state, the load applied to the fourth portion 24 is applied to, for example, the frame 70F.

[0095] FIG. 18 is a schematic side view illustrating a part of the bottom device according to the first embodiment. 18 illustrates one state of the second bottom 20 (e.g., a foot bottom). In the state shown in FIG. 18, the second bottom 20 is flat. In this state, the load applied to the fourth portion 24 is applied to, for example, the frame 70F (e.g., the fourth frame portion 70Fd).

[0096] FIG. 19 is a schematic perspective view illustrating a part of the bottom device according to the first embodiment. The bottom device 170 according to the embodiment may include an extension member 35 as illustrated in Fig. 19. For example, ends 35a and 35b of the extension member 35 are connected to two portions of the frame 70F. A portion of the mattress is placed on the extension member 35. By providing the extension member 35, the bottom device 170 can be made even longer.

[0097] For example, recesses (or holes) into which the ends 35a and 35b of the extension member 35 are inserted are provided on the back surface of at least one of the first bottom 10 and the second bottom 20. The extension member 35 is fixed by inserting the ends 35a and 35b into the recesses (or holes).

[0098] 20(a) and 20(b) are schematic views illustrating a part of the bottom device according to the first embodiment. As shown in FIG. 20(a), for example, a wiring fixing portion 10P may be provided on the back surface of the first bottom portion 10. As shown in FIG. 20(b), the wiring fixing portion 10P includes a recess 10PD. Various wirings (such as a power cable or a sensor signal line) can be fixed in the recess 10PD. A recess in which various wirings and components can be fixed may be provided on the back surface of the second bottom portion 20.

[0099] Various types of projections and recesses may be provided on the back surface of the first bottom 10. A sensor for detecting biological information of the user of the bed 70B may be provided. For example, wiring for the sensor may be fixed to various types of projections and recesses provided on the back surface of the first bottom 10.

[0100] FIG. 21 is a schematic view illustrating a part of the bottom device according to the first embodiment. 21, for example, a fixing member 10J may be provided on the back surface of the first bottom 10. The fixing member 10J fixes the relative positions of the first bottom 10 and the frame 70F. The fixing member 10J is made of, for example, metal.

[0101] FIG. 22 is a schematic view illustrating a part of the bottom device according to the first embodiment. As shown in FIG. 22, for example, a hole 10H may be formed in the first bottom 10. For example, a fixing member (e.g., a fastening member) passes through the hole 10H and is fixed to the frame 70F. This fixes the first bottom 10 to the frame 70F. The first bottom 10 is located above the frame 70F, and the work of inserting the fixing member (e.g., a fastening member) into the hole 10H and fixing it can be done from above. This makes the work easier. The fixing member (e.g., a fastening member) includes, for example, a screw member, a rivet, etc.

[0102] FIG. 23 is a schematic view illustrating a part of the bottom device according to the first embodiment. 23, for example, a protrusion 20P may be provided on the rear surface of the second bottom 20. When carrying the second bottom 20, the protrusion 20P can be used to carry the second bottom 20 safely and stably.

[0103] (Second embodiment) The second embodiment relates to a bed apparatus. The bed apparatus includes any bottom apparatus according to the first embodiment and a frame 70F.

[0104] FIG. 24 is a schematic perspective view illustrating the bed apparatus according to the second embodiment. As shown in FIG. 24, a bed apparatus 310 according to the second embodiment includes the bottom apparatus 170 according to the first embodiment. The bed apparatus 310 includes, for example, a frame 70F. The bottom apparatus 170 is provided on the frame 70F. The frame 70F supports the first bottom 10 and the second bottom 20. In this example, the bed apparatus 310 includes a base frame 70BF. The base frame 70BF supports the frame 70F. In this example, a headboard 78H and a footboard 78F are provided on the frame 70F.

[0105] FIG. 25 is a schematic perspective view illustrating the bed apparatus according to the second embodiment. 26 and 27 are schematic side views illustrating the bed apparatus according to the second embodiment. As shown in Figures 25 to 27, the bed apparatus 320 according to the second embodiment also includes a bottom apparatus 170 and a frame 70F. As shown in Figure 26, the bed apparatus 320 includes a drive mechanism 70v. The drive mechanism 70v is capable of changing the angle of the first bottom 10. The drive mechanism 70v is driven by, for example, an actuator 70ac.

[0106] According to the second embodiment, a more convenient bed apparatus can be provided.

[0107] According to the embodiment, a more convenient bottom device and bed device can be provided.

[0108] The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. For example, the specific configurations of the elements, such as the bottom and frame included in the bottom device and bed device, are within the scope of the present invention as long as a person skilled in the art can implement the present invention in a similar manner and obtain similar effects by appropriately selecting them from within the known range.

[0109] Any combination of two or more elements of each embodiment to the extent technically possible is also included within the scope of the present invention as long as it encompasses the gist of the present invention.

[0110] In addition, all bottom devices and bed devices that can be implemented by a person skilled in the art by making appropriate design modifications based on the bottom device and bed device described above as embodiments of the present invention also fall within the scope of the present invention as long as they include the gist of the present invention.

[0111] In addition, within the scope of the concept of the present invention, a person skilled in the art may come up with various modifications and alterations, and it will be understood that these modifications and alterations also fall within the scope of the present invention.

[0112] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention described in the claims and their equivalents. [Explanation of symbols]

[0113] 10...first bottom, 10E, 10F...edge, 10H...hole, 10J...fixing member, 10P...wiring fixing portion, 10PD...recess, 10X...contactable portion, 10c...first connection portion, 11...first portion, 11A...first uneven portion, 11D...recessed area, 11a, 11b...first and second surfaces, 11h...hole, 11s...first side surface, 12...second portion, 12A...second uneven portion, 12P...convex area, 12c, 12d...third and fourth surfaces, 12h...hole, 12s...second side surface, 15...fixing member, 15a, 15b...first and second screw members, 20...second bottom, 20A...knee bottom, 20B...foot bottom, 20C...waist bottom, 20D...foot side curved bottom, 20E, 20F...end, 20G...gap, 20M...protruding member, 20P...convex portion, 20X...insertion member, 20c...second connection portion, 23...third portion, 23A...third uneven portion, 23D...concave region, 23G...gap, 23H...third hole, 23M...mark, 23R...setback portion, 23e, 23f...fifth and sixth surfaces, 24...fourth portion, 24A...fourth uneven portion, 24H...fourth hole, 24M...mark, 24P...convex region, 24g, 24h...seventh and eighth surfaces, 24gp...convex portion, 25...deformable portion, 35...extension member, 35a, 35b...end, 70B...bed, 70BF...Base frame, 70F...Frame, 70Fa-70Fd...1st to 4th frame parts, 70Fh, 70Fi...Olong holes, 70Fp, 70Fq...Pins, 70ac...Actuators, 70v...Drive mechanisms, 78F...Footboard, 78H...Headboard, 170...Bottom devices, 310, 320...Bed devices, L01, L02...Length, L1-L4...1st to 4th lengths, ST01...Long state, ST02...Shorter state, ST1-ST4...1st to 4th states, W12...Width, d1, d2...1st and 2nd thicknesses

Claims

1. a first bottom including a first portion and a second portion; the second portion is connected to the first portion via a first connection portion; the second portion is capable of overlapping the first portion; A hole is provided in the first part or the second part, and a bottom device in which a lower part of a protruding member can be fixed.

2. the first portion includes a first uneven portion, the second portion includes a second uneven portion, The bottom device according to claim 1 , wherein in the second state, the first concave-convex portion and the second concave-convex portion engage with each other.

3. 3. The bottom device according to claim 1, wherein the protruding member is a member for fixing the position of a mattress that can be placed on the bottom device.

Images