JP2003235680A - Bed skirt device with lifting mechanism and bed with lifting mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constantly and appropriately cover a space between a main frame to be raised/lowered and a base frame in a bed from a side, giving a beautiful external appearance. <P>SOLUTION: This skirt device 2 covers the space 12 between the base frame 11 and the main frame 10 of the bed 1 from its side, which is so constituted as to raise/lower the main frame 10 relative to the base frame 11. This device is provided with a bellows body 20 and a support body 27 of the bellows body 20 constituted to be vertically and elastically extended. The bellows body 20 is provided with a lower part attachment part 22 to the base frame 11 and an upper part attachment part 23 to the main frame 10. The support body 27 has its lower end part 27a to be attached to the lower part attachment part 22 of the bellows body 20 and its upper end part 27b to be attached to the upper part attachment part 23 of the bellows body 20. A through-hole 25 for the support part 27 is formed between the upper part attachment part 23 and the lower part attachment part 22 of the bellows body 20. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a skirt device used to laterally cover a space between a base frame and a main frame in a bed with a lifting function, and a bed with a lifting function equipped with this skirt device. Regarding

[0002]

2. Description of the Related Art A main frame for supporting a floor plate on which a mattress or the like is placed is provided on a base frame, and a bed (a bed with an elevating function) is constructed so that the main frame moves up and down with respect to the base frame. is there.

[0003]

However, in such a bed, the higher the main frame rises,
The space between the main frame and the base frame will be wider, but since a jack device and a drive motor for moving the main frame up and down are arranged in this space, that is, below the main frame. From the viewpoint of improving the appearance of the bed, it is desired to close this space from the side.

As a method of laterally closing this space, it is conceivable that an elastically extendable rubber sheet or the like is placed between the main frame and the base frame. It is assumed that the elastic deformation characteristics tend to deteriorate with time, and that it becomes difficult to return to the desired shape after repeated expansion and contraction.

It is also possible to squeeze a bellows-like skirt between the main frame and the base frame. However, if such a skirt is simply squeezed in, the skirt will have the above space when the main frame descends. It is expected that a part of the skirt will be projected to the outside or a part of the skirt will be recessed to the inside of the space, and there is no guarantee that such a skirt will always be folded regularly.

Therefore, the main object of the present invention is to make it possible to always cover the space between the main frame and the base frame, which is moved up and down, appropriately and aesthetically from the side in this type of bed.

[0007]

In order to achieve the above object, in the invention according to claim 1, a bed skirt device with a lifting function has the following configurations (1) to (6). I made it. (1) A main frame that supports a floor plate on which a mattress or the like is placed is provided on a base frame, and the main frame and the main frame in a bed configured such that the main frame moves up and down relative to the base frame. A skirt device for laterally covering a space between (2) a bellows body configured to extend and spread in the vertical direction, and (3) a bellows body configured to elastically stretch in the vertical direction, and And (4) the bellows body has a lower mounting portion for the base frame and an upper mounting portion for the main frame, and (5) the support body has a lower end. The part is attached to the lower mounting portion of the bellows body, and the upper end of the portion is mounted to the upper mounting portion of the bellows body.
(6) Moreover, the bellows-constituting pieces that are adjacent to each other in a state in which a bent edge is formed at a connecting portion between the bellows-constituting pieces that are adjacent to each other so as to form the bellows body between the upper mounting portion and the lower-screw mounting portion of the bellows body. In each of the bellows-constituting pieces connected to each other, a through hole for the support is formed between a bending edge facing the outside of the space and a bending edge facing the inside of the space.

According to this structure, the space between the base frame and the main frame can be always covered from the side with the bellows body attached as described above. That is, when the main frame rises, the bellows body can be extended and expanded by the amount of the rise, and the space between the main frame and the base frame thus raised can be laterally covered by the bellows body.

Further, when the main frame rises, the support is elastically stretched by the amount of the rise, and at each moving position of the main frame, the bellows body which expands and spreads in response to the rise of the main frame is supported by the respective supports. It can be supported by the body.

Further, when the main frame descends, the supporting body elastically returns and contracts by the descending amount. By the lowering of the main frame, the bellows body also narrows the vertical dimension in a foldable manner, but the bellows body thus folded is guided by the support body that contracts as described above in the state of being passed through the through holes. The folding is done regularly. That is, the bellows body will not be folded with a part of the bellows body protruding to the outside of the space, and the bellows body will not be folded with a part of the bellows body being depressed inside the space. .

Further, since the support body is composed of an elastic body which can be elastically stretched, the support body is a bellows body which is fitted so as to laterally cover the space between the main frame and the base frame. Even if an external force is applied from the outside, the support member once bends inside the space by this external force and then returns to the original position. Therefore, the action of such an external force does not impair the support state of the bellows body by the support body.

Further, since the bellows body can be properly supported by the guide of the support body and the folding can be performed regularly, the bellows body itself does not need to be made of an elastic body.

Further, since the support body is made of an elastic body and is not solid, it is possible to provide the skirt device between the main frame and the base frame so that the support body is obliquely stretched. be able to. For example, even if the frame frame of the base frame is arranged inside the frame frame of the main frame, and vice versa, the frame frame of the base frame is arranged outside the frame frame of the main frame, The space between the base frame and the base frame can always be properly covered from the side by the bellows body.

The invention according to claim 2 is characterized in that the support in the bed skirt device with a lifting function according to claim 1 is a tension coil spring.

According to this structure, the outer peripheral surface of the spring is used as a guide surface, and the bellows body that is expanded and folded by the movement of the main frame can be smoothly expanded and folded. Further, the elastic deformation characteristics of the support can be maintained for a long period of time.

Further, in the invention according to claim 3, the bellows body in the bed skirt device with the lifting function according to claim 1 has a substantially equal interval between the mat body and the adjacent slits. A plurality of slits, one of the adjacent slits is formed from one surface side of the mat body toward the other surface side, and the other of the adjacent slits is formed from the other surface side of the mat body toward the one surface side. The mat body is provided as described above, and the mat body is folded at the slit forming position in the direction in which the slits are opened so that the space between the adjacent slits becomes a bellows forming piece. It is characterized by being formed from.

With this structure, it is possible to easily form the bellows body, and it is also possible to inexpensively provide the skirt device including the bellows body.

Further, in the invention according to claim 4, the upper mounting portion and the lower mounting portion of the bellows body which constitute the bed skirt device with the lifting function according to claim 1, claim 2 or claim 3 One or both of them is characterized in that it is attached to the base frame or the main frame via a hook and a ring on which the hook is hooked.

According to this structure, when it is necessary to open the space between the main frame and the base frame, the engagement between the ring and the hook is released,
The state in which this space is laterally covered with the bellows body can be easily released.

Further, in the invention according to claim 5, the bed with the lifting function has at least four skirt devices according to any one of claims 1 to 4, and these skirt devices are provided. Some of the skirt devices cover the space between the base frame and the main frame from the side on the length side of the bed, and the remaining part of these skirt devices form the base frame on the width side of the bed. It is characterized in that these skirt devices are provided so as to cover the space with the main frame from the side.

With this structure, the space between the base frame and the main frame can be appropriately covered from the side by the bellows body on each side of the bed.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION A typical embodiment of the present invention will be described below with reference to FIGS.

1 to 4 respectively show the skirt device 2, and in particular, FIG. 4 shows a state in which the bellows body 20 constituting the skirt device 2 is folded. Further, FIG. 5 shows a state in which the mat body 21 is viewed from one side end face side in the length direction thereof so that it is easy to understand how to form the slits 21a in the mat body 21 that constitutes the bellows body 20. Shows. 6 to 8 respectively show the bed 1 with the lifting function. 6 and 7 show a state in which the bed 1 and the skirt device 2 are separated, and FIG. 8 shows a state in which the skirt device 2 is attached to the bed 1. In contrast to FIG. 6, FIG. 7 shows the bed 1 as viewed from the side opposite to that in FIG.

The bed skirt device 2 with a lifting function according to this embodiment is provided with a main frame 10 on a base frame 11 for supporting a bed 1 with a lifting function, that is, a floor plate 10a on which a mattress or the like is placed. At the same time, it is used to laterally cover the space 12 between the base frame 11 and the main frame 10 in the bed 1 configured such that the main frame 10 moves up and down with respect to the base frame 11.

Further, the bed 1 with the lifting function according to this embodiment has a floor board 10a on which a mattress or the like is placed.
The main frame 10 for supporting the base frame 1
1. A skirt that is provided on the first frame 1 and is configured so that the main frame 10 moves up and down with respect to the base frame 11 and that covers a space 12 between the base frame 11 and the main frame 10 from the side. Device 2
The skirt device 2 provides the space 12 at each moving position of the main frame 10.
Is configured to cover the side from the side.

(Skirt Device 2) The skirt device 2 includes a bellows body 20 and a support body 27 for the bellows body 20.

The bellows body 20 is constructed so as to extend and spread in the vertical direction. Specifically, the bellows body 20 is configured to have groove-shaped portions extending in the lateral direction in a multi-stepped manner and mountain-shaped portions extending in the lateral direction between the groove-shaped portions. That is, the groove-shaped portion on the one surface side of the bellows body 20 forms a mountain-shaped portion on the other surface side of the bellows body 20, and the groove-shaped portion on the other surface side of the bellows body 20 is the bellows body 20.
A mountain-shaped portion is formed on one surface side, and the bellows body 20 is configured to have a substantially zigzag shape in the vertical cross-sectional shape. The groove width of the groove-shaped portion is expanded so that the groove-shaped portion extends in the vertical direction. Further, by narrowing the groove width of the groove-shaped portion, it is configured to narrow the vertical dimension in a folded shape.

In the illustrated example, the bellows body 20 is composed of a mat body 21 made of foamed plastic such as foamed polyethylene.

Specifically, for such a mat body 21, first, a plurality of slits 21a, 21a, ... Are formed at a substantially equal interval between the adjacent slits 21a and one of the adjacent slits 21a, 21a. But this mat body 21
The slits 21a are formed so as to be formed from one surface side to the other surface side, and the other of the adjacent slits 21a, 21a is formed so as to be formed from the other surface side of the mat body 21 to the one surface side. (Fig. 5)

In the illustrated example, the slit 21a formed from one surface side to the other surface side of the mat body 21 is cut from this one surface, and a little is formed between the bottom of the slit 21a and the other surface. It is provided to leave meat. Further, the slit 21a formed from the other surface side of the mat body 21 toward the one surface side is cut from the other surface,
The slit 21a is provided so as to leave some meat between the bottom and one surface.

Next, at the position where the slit 21a is formed, the mat body 21 is folded in such a direction as to open the slit 21a.
From 1, the bellows body 20 is formed with the bellows forming pieces 24 between the slits 21a, 21a adjacent to each other. (Figure 3)

In this case, the bellows body 20 can be easily formed, and the skirt device 2 constituted by the bellows body 20 can be provided at low cost.

The bellows body 20 only needs to have the above-described structure capable of expanding and spreading in the vertical direction, and may be made of, for example, a non-woven fabric or the like, unlike the illustrated example.

When the bellows body 20 is formed of a non-woven fabric, typically, the non-woven fabric is folded in a bellows shape, and the non-woven fabric thus folded is heated to impart the fold to the non-woven fabric. It can be done by things.

The bellows body 20 has a lower mounting portion 22 for the base frame 11 and the main frame 10.
And an upper mounting portion 23 for the.

In the illustrated example, between the bellows forming piece 24 in the uppermost stage of the bellows body 20 and the bellows forming piece 24 in the next order of the bellows forming piece 24 in the uppermost stage, the bellows in the uppermost stage is formed. By sticking the upper surface to the lower surface of the constituent piece 24 by adhesion or the like, the rod-shaped body 2 elongated in the lateral direction is formed.
3b is provided, and the upper mounting portion 23 is configured to include the uppermost part of the bellows body 20 which is shaped by the rod-shaped body 23b.

Further, between the bellows constituting piece 24 in the lowermost stage of the bellows body 20 and the bellows constituting piece 24 in the next order of the bellows constituting piece 24 in the lowermost stage, the bellows constituting piece 24 in the lowermost stage. A rod-shaped body 22a elongated in the lateral direction is provided by fixing the lower surface to the upper surface of the body by adhesion or the like, and the lower attachment portion 22 including the lowermost portion of the bellows body 20 retained by the rod-shaped body 22a. It is configured.

In the illustrated example, the lower mounting portion 22 is a bolt 1 formed on a plate-shaped bracket 13 mounted on the lower surface of the frame 11a of the base frame 11.
4 is provided with a downwardly opened screw hole 22b into which a bolt 14 to be inserted into the through hole 13a of 4 is screwed. By screwing the bolt 14 into the screw hole 22b, the frame of the base frame 11 is provided. Frame 1
The lowermost part of the bellows body 20 is arranged along the 1a so that the lowermost part is attached to the base frame 11.

In the illustrated example, the upper mounting portion 23 is
Ring 2 protruding upward from the uppermost surface of the bellows body 20
3a is further provided, and by hooking the ring 23a on the hook 15 provided on the frame frame 10b constituting the main frame 10, the uppermost part of the bellows body 20 is aligned with the frame frame 10b of the main frame 10. Thus, the uppermost part is attached to the main frame 10.

In the illustrated example, a plurality of the brackets 13 are provided at the lowermost portion of the bellows body 20 at a substantially equal interval between the brackets 13 and 13 adjacent to each other. The lower part is attached to the frame frame 11a of the base frame 11 at a plurality of points.

A plurality of the rings 23a are provided in the uppermost portion of the bellows body 20 at a substantially equal interval between the adjacent rings 23a, 23a, and
Corresponding to this, the frame frame 10b of the main frame 10
To protrude downward from the lower surface of the frame 10b,
In addition, a plurality of hooks 15 whose tip ends are directed upward are provided at substantially equal intervals between the adjacent hooks 15 and 15, and the uppermost part of the bellows body 20 is also the frame frame 10b of the main frame 10. It can be attached at multiple locations.

As a result, according to the skirt device 2 of this embodiment, the space 12 between the base frame 11 and the main frame 10 can be always covered from the side by the bellows body 20 attached as described above. it can. That is, when the main frame 10 rises, the bellows body 20 is extended and expanded by the rise amount, and the space 12 between the main frame 10 and the base frame 11 thus raised is laterally moved by the bellows body 20. Can be covered.

When it is necessary to open the space 12 between the main frame 10 and the base frame 11, the ring 23a is disengaged from the hook 15 so that the space 12 can be seen from the side. The state covered with the bellows body 20 can be easily released.

Unlike the illustrated example, the lowermost part of the bellows body 20 may be detachably attached to the frame frame 11a of the base frame 11 by the hook 15 and the ring 23a.

Further, both the uppermost portion and the lowermost portion of the bellows body 20 are detachably attached to the base frame 11 or the frame frames 11a and 10b of the main frame 10 by the hook 15 and the ring 23a. Is also good.

Further, the ring 23a is attached to the base frame 11
Alternatively, the hooks 15 may be provided on the frame frames 11a, 10b side of the main frame 10 and the hooks 15 may be provided on the bellows body 20 side.

A bent edge 24a is formed between the upper mounting portion 23 and the lower mounting portion 22 of the bellows body 20 at the connecting portion between the bellows-constituting pieces 24, 24 adjacent to each other so as to form the bellows body 20. The bellows-constituting pieces 24 and 2 connected to the adjacent bellows-constituting pieces 24 in the closed state, respectively.
4 ... Each of the bent edges 2 faces the outside of the space 12.
A through hole 25 for the support body 27 is formed between 4a and a bent edge 24a facing the inside of the space 12.

In the illustrated example, each of the bellows-constituting pieces 24, 24 ... Constituting the bellows body 20 is formed in the shape of an elongated plate having a substantially equal width. Curved edges 24a, 24 facing the outside of the
a are arranged so as to contact substantially the same virtual vertical plane, and each bent edge 24 facing the inside of the space 12 is a.
All of a, 24a, ... Are arranged so as to contact substantially the same virtual vertical plane.

In the illustrated example, the through holes 25 are formed in a penetrating state at positions approximately in the width direction of the bellows constituting pieces 24, 24 ...

In the illustrated example, the through hole 25 is formed in a long hole shape that is long in the inner and outer directions of the bellows body 20. Further, the through hole 25 is configured to have a slightly wider hole width on the shorter side than the outer diameter of the support body 27.

Then, each through hole 2 formed in this way
The support body 27 is incorporated into the bellows body 20 so as to support the bellows body 20 by passing through 5, 5, ...

In the illustrated example, the support 27 is the bellows body 20.
In the left-right direction, a plurality of the support bodies 27, 27 are installed in the bellows body 20 at substantially equal intervals.

Each of the supports 27, 27 ... Has its lower end portion 27a attached to the lower mounting portion 22 of the bellows body 20 and its upper end portion 27b attached to the upper mounting portion 23 of the bellows body 20. ing.

In the illustrated example, each support 27, 27 ...
An end portion of the rod-shaped body 23b is fixed to a surface opposite to a surface of the rod-shaped body 23b which is fixed to the bellows body 20.

As a result, first of all, the supports 27, 27 ...
When the main frame 10 rises, the main body 10 is elastically stretched by the amount of the rise, and the bellows body 20 that expands and spreads according to the rise of the main frame 10 at each moving position of the main frame 10 is supported by the respective support bodies 27. Can be supported.

Further, when the main frame 10 is lowered, each of the supports 27, 27 ... The bellows body 20 also narrows the vertical dimension in a folding manner by the lowering of the main frame 10, but is folded in this way by the support body 27 that contracts as described above while being passed through the through holes 25, 25 ... The bellows body 20 is guided and this folding is done regularly. That is,
The bellows body 20 is folded with a part of the bellows body 20 protruding to the outside of the space 12, or the bellows body 20 is folded with a part of the bellows body 20 recessed inside the space 12. There is nothing to do.

Further, since each support 27 is made of an elastic material which can be elastically stretched, the space 12 between the main frame 10 and the base frame 11 is formed.
Even if an external force is applied from the outside to the bellows body 20 that is fitted so as to cover the sideways, the support body 27 once bends inside the space 12 by this external force and then returns to the original position. To do. Therefore, the action of the external force does not impair the support state of the bellows body 20 by the support body 27.

Further, since the bellows body 20 can be properly supported by the guide of the support body 27 and the folding can be performed regularly, the bellows body 20 itself does not need to be made of an elastic body. .

Further, since the support body 27 is made of an elastic body and is not solid, the skirt device 2 is attached to the main frame 1 so that the support body 27 is slanted.
It can also be provided between 0 and the base frame 11 without any trouble. For example, the frame frame 11a of the base frame 11 is arranged inside the frame frame 10b of the main frame 10, and vice versa.
Even when the frame frame 11a of the base frame 11 is arranged outside the frame frame 10b of 0, the space 12 between the main frame 10 and the base frame 11 is always properly laterally provided by the bellows body 20. It can be covered.

In the illustrated example, the support 27 is
It is used as a tension coil spring 27c. In the illustrated example, the lower end of the spring 27c is attached to the lower portion of the bellows body 20 by driving the tacker 26 hooked on the ring portion formed at the end of the spring 27c into the rod-shaped body. The upper end of the spring 27c is attached to the upper attachment portion 23 of the bellows body 20.

When the support 27 is such a spring 27c, the outer peripheral surface of the spring 27c is used as a guide surface to be expanded and expanded by the movement of the main frame 10, and the expansion and the folding of the bellows body 20 to be folded. It can be done smoothly. Further, the elastic deformation characteristics of the support 27 can be maintained for a long period of time.

As the support member 27, a spring 27c as shown in the figure may be used, or, for example, rubber or the like formed in the shape of a round cord may be used.

(Bed 1) FIGS. 6 to 8 show a bed 1 having a lifting function and having four skirt devices 2 described above.

In the illustrated example, the bed 1 is provided with a main frame 10 above a base frame 11 for supporting a floor plate 10a on which a mattress or the like is placed.
Further, in the illustrated example, the main frame 10 can be moved upward to a desired position by a pantograph type jack device 16.

In the bed 1, two of the four skirt devices 2, 2, ... Are provided in the space 1 between the base frame 11 and the main frame 10 on the length side of the bed 1.
2 from the side so that the remaining two of the four skirt devices 2, 2 ... Cover the space 12 between the base frame 11 and the main frame 10 on the width side of the bed 1 from the side, The four skirt devices 2, 2 ... Are provided.

Specifically, the four skirt devices 2,
Two of the two skirt devices 2, 2, ... Are configured to have a bellows body 20 having a length substantially equal to the length dimension of the bed 1, and the remaining two of the four skirt devices 2, 2 ,. It is configured to have a bellows body 20 having a length substantially equal to the width dimension of the bed 1.

As a result, in the bed 1, the base frame 1 is provided on each of the four side portions thereof.
The space 12 between the main frame 10 and the main frame 10 can be appropriately covered from the side by the bellows body 20.

When the space 12 needs to be opened, for example, when the jack device needs maintenance, the four skirt devices 2, 2, ... The whole bed 1
It is possible to open the space 12 between the base frame 11 and the main frame 10 at a necessary place among the four side portions of the bed 1 without removing it from the side. That is, in the illustrated example, the four skirt devices 2,
2 ... In each of the upper parts 23 of the bellows body 20.
By releasing the engagement between the ring 23a of the main frame 10 and the hook 15 of the main frame 10, the cover 12 of the space 12 between the base frame 11 and the main frame 10 on the side of the bed 1 covered by the bellows body 20 is opened. It can be canceled.

Different from the illustrated example, two or more skirt devices 2 may be provided on any one or more side portions of the bed 1. For example, two skirt devices 2 and 2 having a size in the left-right direction which is approximately half the length of the bed 1 are provided adjacent to the side portion on the length side of the bed 1 by the two skirt devices 2 and 2. It is also possible to cover the space 12 between the base frame 11 and the main frame 10 from the side by the bellows body 20 on the side portion on the length side of the bed 1.

[0070]

According to the bed skirt device with the raising / lowering function of the present invention, the space between the main frame and the base frame to be raised / lowered by guiding the bellows body which constitutes this device by the support body. , It is possible to cover from the side always and properly and in good looks.

Further, according to the bed with the raising / lowering function of the present invention, the spaces between the main frame and the base frame to be raised / lowered on the four side portions of the bed are always appropriate and attractive from the side. Can be covered.

[Brief description of drawings]

FIG. 1 is a perspective view of a skirt device 2.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view of the same.

FIG. 4 is a sectional view of the same.

FIG. 5 is a configuration diagram of a mat body 21 that constitutes the bellows body 20.

FIG. 6 is a perspective view showing a state in which the bed 1 side and the skirt device 2 are separated.

FIG. 7 is a perspective view showing a state in which the bed 1 side and the skirt device 2 are separated.

FIG. 8 is a perspective view of the bed 1 to which the skirt device 2 is attached.

[Explanation of symbols]

1 bed 10 mainframe 10a floor board 11 base frame 12 spaces 2 skirt device 20 bellows 22 Lower mounting part 23 Upper part 24 Bellows configuration piece 24a bent edge 25 through holes 27 Support

Claims (5)

[Claims] 1. A main frame for supporting a floor plate or the like on which a mattress or the like is mounted is provided on a base frame, and the main frame and the main frame in a bed configured such that the main frame moves up and down with respect to the base frame. A skirt device that laterally covers the space between the bellows body and the bellows body that is vertically expandable and expandable, and a bellows body that is elastically stretchable in the vertical direction and that is long in the vertical direction. The bellows body has a lower mounting portion for the base frame and the upper mounting portion for the main frame, and the supporting body has its lower end attached to the lower mounting portion of the bellows body. And the upper end of the bellows body is attached to the upper attachment portion of the bellows body. Between each of the bellows-constituting pieces adjacent to each other in a state where a bent edge is formed at a joint portion between the bellows-constituting pieces adjacent to each other so as to form the bellows body between the lower mounting portion and each of the bellows-constituting pieces. A bed skirt device with a lifting function, wherein a through hole of the support is formed between a bending edge facing the outside of the space and a bending edge facing the inside of the space. 2. A bed skirt device with a lifting function according to claim 1, wherein the support is a tension coil spring. 3. A mat body, wherein a plurality of slits are formed at substantially equal intervals between adjacent slits, and one of the adjacent slits is formed from one surface side to the other surface side of the mat body. In addition, the other of the adjacent slits is formed so as to be formed from the other surface side of the mat body toward the one surface side, and the mat body is oriented so as to open the slits at the slit forming positions. The bed skirt device with a lifting function according to claim 1, wherein the mat body is formed with bellows bodies having bellows constituting pieces between adjacent slits. 4. The bellows body is configured such that one or both of an upper attachment portion and a lower attachment portion are attached to a base frame or a main frame via a hook and a ring on which the hook is hooked. The bed skirt device with a lifting function according to claim 1, claim 2 or claim 3. 5. At least four skirt devices according to any one of claims 1 to 4 are provided, and a part of these skirt devices serves as a base frame on the length side of the bed. The space between the main frame and the main frame is covered laterally, and the remaining part of these skirt devices covers the space between the base frame and the main frame laterally on the width side of the bed. A bed with a lifting function, which is equipped with a skirt device.