JP2000262564A - Bed apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a comfortable bed apparatus by which there exists no feeling of sense of incongruity such as compression when raising the head end or the like is performed. SOLUTION: A mattress 10 consisting of an elastic mat core material 15 and a over member 16 covering the mat core material 15 is placed on a frame F whose raising of the head end or the like can be performed is provided and a sliding member 17 is disposed between the cover member 15 and the mat core material 15 of the mattress 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus which is most suitable for a person who has been using a bed for a long period of time, such as a bedridden person or a remedy patient.

[0002]

2. Description of the Related Art A conventional bed apparatus has a function of raising a backrest and elevating the upper body of a bed user, that is, a so-called gatch-up function. There are types.

FIG. 6 is a schematic perspective view showing a conventional bed apparatus, and FIG. 7 is a sectional view taken along line 7-7 in FIG. For example, the bed apparatus shown in FIGS. 6 and 7 has a bed 1 on which a mattress 10 on which a person is laid is placed, a support leg 2 is provided at a lower portion of the bed 1, and a drop-down prevention device is provided at an upper portion. A guard 3 is provided.

The bed 1 has a rectangular main frame F composed of an upper frame F1, a central frame F2 and a lower frame F3, and a central frame F of the main frame F.
2 has a backrest frame F4 rotatably attached to the distal end portion of the backrest frame F4 by a pin 4.
A wire or the like (not shown) is stretched in a portion surrounded by the central frame F2 and the lower frame F3 to form a flat surface, and the mattress 10 is placed thereon. In addition,
Reference numeral "5" in the figure denotes a fastener for closing the cover member.

[0005] By operating a handle or the like (not shown), the backrest frame F4 is tilted about the pin 4 and is gatched up together with the mattress 10, so that the bed user can take an upright posture. I have to.

[0006]

However, when the gatch-up is performed, the mattress 10 is in a compressed and deformed state, and the bed user may feel uncomfortable.

The compression deformation will be described in more detail. First, in order to obtain an ideal state in which the mattress 10 is not compressed and deformed at the time of gatch-up, as shown in FIG. 7, the mattress 10 is deformed so that the points a, b, c and d of the back portion 11 become parallelograms. The points e, f, g, and h of the central portion 12 and the lower portion 13 of the back portion 10 are also deformed so as to form a parallelogram. It is necessary to extend the point h which is a part so as to protrude. That is, since the pin 4 which is the center of rotation of the backrest frame F1 and the mattress upper surface 10a are separated by a distance of the thickness t of the mattress 10, when the backrest frame F1 is gatched up, the points a and h are changed. If the mattress 10 is not deformed so as to shift, the mattress 10 will be compressed and deformed.

However, in the actual mattress 10, the core material (hereinafter referred to as mat core material) 15 of the mattress 10 is made of a material having a high frictional resistance such as urethane, and the mat core material 15 is entirely formed. Since it is covered by the cover member 16, neither the upper surface 15a nor the lower surface 15b of the mat core 15 can be extended, and as a result, the mat core 15 is more compressed as being away from the backrest frame F1.

As a result, when the bed user lies up on his / her back, the compressive deformation of the upper surface 15a of the mat core 15 is transmitted to the back, and the user feels uncomfortable.

[0010] The present invention has been made in view of such problems of the prior art, and an object of the present invention is to provide a comfortable bed apparatus which does not give a feeling of strangeness such as compression at the time of gatch-up.

[0011]

The object of the present invention is achieved by the following means.

(1) A mattress comprising an elastic mat core material and a cover member covering the mat core material,
A bed device placed on a frame that can be raised up, wherein a sheet-like sliding member having low frictional resistance is provided between the cover member and a mat core material.

(2) The bed device, wherein the mattress is provided with sliding members on both upper and lower surfaces of the mat core material.

(3) The bed device, wherein the mat core has a soft structure in which the top of the back is easily deformed.

(4) The bed device, wherein the mat core material has a structure that can be bent at both sides when gatched up and is harder than a central portion where a person sleeps.

(5) The bed device, wherein the lower end of the lower part of the mat core material which abuts on the guard portion of the frame has a rigid structure so that it is not easily deformed even if it hits the guard portion.

(6) The bed device, wherein the cover member is configured to be longer than the length of the mat core material by 5 mm or more.

(7) The bed device, wherein the sliding member provided between the cover member and the lower surface of the mat core is made of a rigid material.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Embodiment 1 FIG. 1 is a schematic sectional view showing a bed apparatus according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of a mattress placed on the bed apparatus, and FIG. It is a schematic perspective view which shows the mattress in the state which removed the cover member in the modification, and the member same as the member shown in FIGS. 6 and 7 is attached | subjected with the same code | symbol, and a part description is abbreviate | omitted.

First, the bed apparatus according to the present embodiment
As shown in FIG. 1, the backrest frame F4 has a gatch-up function.
The mattress 10 placed on the center frame F2 and the lower frame F3 is configured as shown in FIG.

The mattress 10 of the present embodiment includes a mat core 15 and a cover member 16 covering the mat core 15.
And a sliding member 17 provided between the mat core material 15 and the cover member 16.

First, the cover member 16 will be described. The cover member 16 may be any cover member that covers the mat core material 15, but preferably covers the entire mat core material 15. The upper half 16u and the lower half 16d are connected by a fastener 5 or the like so that the mat core 15 can be separated from the mat core 15, and even if the bed user turns over, he / she slides. Not made of cloth,
For example, a material having hygroscopicity such as cotton is preferable.

More preferably, the mat core 15 is covered with a surplus allowance. Cover member 16
If the cover covers the mat core material 15 without any excess, the cover member 16 becomes a resistance when the mat core material 15 is going to deform, and it is not preferable. It is easy to change the direction of the body above, and it also helps prevent bedsores.

Next, the sliding member 17 will be described. In the present embodiment, a sliding member 17 is interposed between the lower half 16 d of the cover member 16 and the lower surface 15 b of the mat core 15. By providing the sliding member 17 in this portion, the frictional resistance between the mat core material 15 and the cover member 16 is reduced,
Cover member 1 despite compression deformation of mat core material 15
Since 6 moves freely upward with the body, the uncomfortable feeling acting on the body is greatly reduced.

The sliding member 17 may be made of any material as long as it is a sheet-like material having a small frictional resistance, but is preferably a relatively thin plastic cardboard as shown in FIG. It is. The plastic corrugated cardboard is extremely preferable because it has not only low frictional resistance but also rigidity, prevents deformation of the mat core material 15, and is lightweight and heat insulating.

The mat core 15 is made of an elastic material having a high frictional resistance, for example, urethane.
a and the lower surface 10b are flat surfaces, have a rectangular shape that is long in the height direction of the bed user M, and are placed on the backrest frame F1 in order from the top in the height direction. It comprises a back portion 11, a central portion 12 mounted on the central frame F2, and a lower portion 13 mounted on the lower frame F3.

A cut k extending from the lower surface 15b to the vicinity of the upper surface 15a is formed between the back portion 11 and the center portion 12 along the boundary between the back portion 11 and the center portion 12,
The boundary between the back portion 11 and the center portion 12 is bent at the time of gatch-up.

In general, the mat core material 15 may have a uniform softness as a whole, but more preferably has a structure in which the hardness is partially different. For example, as shown in FIG. 3, the top 11u of the back portion 11 has a softer structure than other portions. By doing so, it is preferable that the point a of the upper surface 15a of the mat core material 15 protrudes and extends as described above at the time of gatch-up, but if the top 11u itself is configured to be deformed, the top 11u itself is deformed. Since 11u is a so-called crushing allowance, compression deformation hardly occurs. The top 11u exists in the entire width direction and has a length L
1 is preferably about 0.5 to 1.0 times the thickness t. With such a length, the function of the bed is not affected.

On the other hand, the lower end 13d of the lower part 13 is provided at
It is preferable that it is hard enough not to be easily deformed even if it hits the guard portion 3.

If the lower end portion 13d is softened, the soft lower end portion 13d hits the guard portion 3 and deforms when the entire mattress 10 shifts downward not only at the time of gatch-up but also during normal use, which may further promote the shift. However, if it is hard, displacement due to deformation can be prevented.

Therefore, in the present embodiment, the lower end 13
d is hardened so that the lower end portion 13d is not deformed when it hits the guard portion 3 so as to prevent the entire mattress 10 from shifting downward. The lower end portion 13d is present over the whole in the width direction, and the length L2 is preferably about 1/10 of the entire length L. With this length, the function of the bed is not affected.

Further, both sides 10 of the mat core 15
In other words, it is preferable that the mat core material 15 between the top 11u and the lower end 13d has a structure that can be bent when the gatch-up is performed and is harder than the central part 12 where the person sleeps. In this way, even if the mat core material 15 is entirely soft, a solid core material portion is formed on both sides of the bed user, the body is held firmly, and the overall deformation is reduced. There will be little lateral displacement.

The width L3 of each side portion 10s is preferably set to be about 1/5 of the total width B. However, the width L3 of each side portion 10s may be different from each other.

Embodiment 2 FIG. 4 is a schematic sectional view showing a bed apparatus according to a second embodiment of the present invention, and FIG. 5 is a sectional view showing another modification of the mattress placed on the bed apparatus. The same reference numerals are given to members common to the members illustrated in FIGS.

As shown in FIGS. 4 and 5, the mattress 10 placed on the bed apparatus according to the present embodiment is provided between the upper surface 15a of the mat core 15 and the upper half 16u of the cover member 16. Sliding member 17a made of a material having low frictional resistance
In particular, the sliding member 17a of the present embodiment is a film-like member. In FIGS. 4 and 5, the film is exaggerated to a large thickness.

The sliding member 17a is not limited to the above-mentioned film-like member, but may be any thin-film sheet-like member having a small frictional resistance. Is preferred.

By doing so, at the time of the gatch-up,
The frictional resistance between the upper surface 15a of the mat core 15 and the cover member 16 is reduced, and the above-described deformation or compression can be prevented from being transmitted to the bed user.

In the present embodiment, the sliding member 17a is formed of the upper surface 15a of the mat core 15 and the upper half 1 of the cover member 16.
6u, the sliding member 17a may cover the upper and lower end portions and / or both side end portions of the mat core 15 as shown in FIG. .

With this arrangement, the slipperiness between the mat core material 15 and the cover member 16 is improved, so that the compression deformation can be further prevented.
In a case such as when the mat core 15 is covered with a surplus allowance, the comfort is further enhanced by the improvement of the slipperiness with the mat core 15.

The sliding member 17a may be attached to the inner surface of the cover member 16.

The present invention is not limited to the above-described embodiment, but can be variously modified within the scope of the claims. For example, in the first embodiment described above,
2, the sliding member 17 or 17a for reducing the frictional resistance is provided on the upper surface 15a or the lower surface 15b of the mat core material 15. However, the present invention is not limited thereto. 15b, sliding members 17
Alternatively, 17a may be provided.

[0043]

As described above, in the first aspect of the present invention, the sliding member is provided between the cover member and the mat core material.
The mat core material is not compressed and deformed at the time of gatch-up, and the bed user can have a comfortable bed apparatus that does not feel uncomfortable due to the compressed deformation.

According to the second aspect of the present invention, since the sliding members are provided on the upper and lower surfaces of the mat core material, the mat core material is not further compressed and deformed at the time of the gatch-up.

According to the third aspect of the present invention, since the top of the back portion of the mat core material has a soft structure that is easily deformed, the top itself is easily deformed, and compression deformation is less likely to occur.

According to the fourth aspect of the present invention, since both sides of the mat core material have a rigid structure, the holding state of the body is firm, and the overall deformation is small and the lateral displacement is small.

According to the fifth aspect of the present invention, since the lower end of the lower portion of the mat core material has a rigid structure, the lower end does not deform when hitting the guard portion, so that the entire mattress can be prevented from shifting downward.

According to the sixth aspect of the present invention, since the cover member is made of a material longer than the length of the mat core material by 5 mm or more, the mat core material can be easily deformed, the bed user can easily change the body direction, and the bed slippage It will also prevent it.

According to the seventh aspect of the present invention, the sliding member between the cover member and the lower surface of the mat core material is made of a rigid material. The deformation of the elastic mat core material can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing Embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view of a mattress placed on the bed device.

FIG. 3 is a schematic perspective view showing a modified example of the mattress.

FIG. 4 is a schematic sectional view showing a second embodiment of the present invention.

FIG. 5 is a sectional view showing another modification of the mattress placed on the bed device.

FIG. 6 is a schematic perspective view showing a conventional bed device.

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6;

[Description of Signs] 3 ... Guard part, 10 ... Mattress, 10s ... Side of mat core, 11 ... Back of mat core, 11u ... Top of back of mat core, 12 ... Central part of mat core, 13: Lower part of the mat core material, 13d: Lower end of the lower part of the mat core material, 15: Mat core material, 15a: Upper surface of mat core material, 15b: Lower surface of mat core material, 16: Cover member, 17, 17a ... Sliding member, F: Frame.

Claims (7)

[Claims] 1. A mattress (10) comprising a mat core material (15) having elasticity and a cover member (16) covering the mat core material (15) is placed on a frame (F) that can be raised up. A bed device comprising: a sheet-like sliding member (17, 17a) having a low frictional resistance between the cover member (16) and the mat core (15). 2. The mattress (10) includes the mat core material.
The bed device according to claim 1, wherein the sliding members (17, 17a) are provided on both upper and lower surfaces of (15). 3. The mat core (15) is provided at the top of a back (11).
3. The bed apparatus according to claim 1, wherein (11u) has a soft structure that is easily deformed. 4. The mat core (15) has both sides (10s).
The bed device according to any one of claims 1 to 3, wherein the bed device has a structure that can be bent when gatched up and is harder than a portion of the central portion (12) where a person sleeps. 5. The frame according to claim 5, wherein the mat core is provided with the frame.
Lower end (13d) of lower part (13) that hits guard part (3) of (F)
The bed device according to any one of claims 1 to 4, wherein the bed device has a rigid structure so as not to be easily deformed even when hitting the guard portion (3). 6. The mat member, wherein the cover member (16) is
(15) The bed device according to any one of claims 1 to 5, wherein the bed device is configured to be longer than the length by 5 mm or more. 7. The sliding member (17, 17a) provided between the cover member (16) and the lower surface (15b) of the mat core (15) is made of a rigid material. Claim 1
A bed apparatus according to any one of claims 1 to 5.