JP3525027B2 - Mattress equipment and wake-up bed equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mattress device suitable for a back-up type bed device and a wake-up type bed device using the mattress device.

[0002]

2. Description of the Related Art In a bed apparatus for a sick person, a so-called wake-up bed apparatus is sometimes used to assist a patient whose physical strength has deteriorated to wake up when eating. In the wake-up type bed device, a floor plate provided on the upper surface of the bed frame is divided into a plurality of floor portions in the longitudinal direction of the bed frame, and the floor portion of the portion corresponding to the upper body of the user is divided. That is, the back floor portion can be driven up and down by a drive mechanism.

Therefore, if the back floor is driven in the upright direction, a patient lying on the floor plate via the mattress can wake up the upper body with little physical force.

Conventionally, the above-mentioned floor board has been
It has a fixed floor portion fixedly provided on the bed frame, and one end portion of the back floor portion is rotatably connected to the fixed floor portion.

Therefore, when the back floor portion is driven in the upright direction by the drive mechanism to raise the upper half of the patient, the back floor portion is pivotally moved upward in the upright direction with the connecting portion with the fixed floor portion serving as a fulcrum. Become.

When the back floor is pivotally raised in the upright direction, the mattress placed on the floor plate is bent while pressing the back surface of the patient. Since the mattress has a predetermined thickness, when it is bent along with the standing of the back floor, a compressive force along the longitudinal direction inward is generated on the upper surface that is the inside of the curve, and on the lower surface that is the outer surface. Generates a tensile force along the outside in the longitudinal direction.

Therefore, the compression force generated on the upper surface of the mattress also acts on the back surface of the patient who is raised by the upper surface of the mattress while the upper half of the body is raised, and the compression force causes the back surface to be pressed downward. The buttocks are pulled backwards (inside the curve), which may result in pressure on the body, especially the abdomen.

It is good if the patient has physical strength and can lift the back surface of the body from the upper surface of the mattress by himself and remove the compressive force acting on the rear surface, but if the patient does not have sufficient physical strength, the compressive force is increased. In some cases, it may not be possible to remove it by itself, and in such a case, the patient may be more distressed.

[0009]

As described above, in the conventional wake-up type bed apparatus, when the back floor is raised in the standing direction, the upper surface of the mattress placed on the floor plate presses the back surface of the patient. While being bent, a compressive force is generated on the upper surface of the mattress from both ends in the longitudinal direction toward the inside in the longitudinal direction, and the compressive force strongly acts on the back surface of the patient.

Therefore, unless the body is lifted from the mattress by itself, the compressive force acting on the back surface of the user cannot be removed, so that the body, especially the abdomen, is pressed when raising the back, which gives the user discomfort. Especially, when the user is a sick person or an old person and the body is lifted from the upper surface of the mattress and the compressive force applied to the body cannot be removed by itself, the pain to the user may be great.

An object of the present invention is to provide a mattress device capable of reducing the compressive force generated on the upper surface when it is bent. An object of the present invention is to provide a wake-up type bed device capable of reducing the discomfort and the pain given to the user by reducing the compressive force acting on the back surface of the user when raising the back.

[0012]

According to a first aspect of the present invention, there is provided a mattress device comprising an interior body and an exterior body covering the interior body, wherein the interior body is divided into a predetermined thickness and laminated. Consisting of a layered member and a second layered member,
The first layered member and the second layered member are configured to slide with each other when the interior body is curved, and the exterior body is formed of a material that expands and contracts according to the curvature of the interior body. It is characterized by

The invention of claim 2 is characterized in that, in the invention of claim 1, the surface of the second layered member is formed of a material having lubricity. According to a third aspect of the present invention, in the first aspect of the present invention, a lubricating sheet is provided between the first layered member and the second layered member so as to allow them to slide relative to each other. Characterize.

According to a fourth aspect of the present invention, in the first aspect, the inner body has a three-layer structure in which the first layered member is laminated on the upper and lower surfaces of the second layered member, respectively. To do.

According to a fifth aspect of the present invention, in a wake-up type bed apparatus for raising the upper half of a user's body, the bed frame is divided into a plurality of floor portions and is rotatably connected to each other. A floor board provided in
The mattress device is provided with a driving means for driving the floor portion of the floor plate up and down, and a mattress device provided on the floor plate member, and the mattress device has the structure described in claim 1.

According to the invention of claim 1, the inner body is divided into a first layered member and a second layered member having a predetermined thickness,
Moreover, when the inner body is bent, the first layered member and the second layered member
Since each of the layered members and the layered member is curved while being slid relative to each other in a state of being thinner than the entire thickness of the inner body, the compressive force generated in each layered member is reduced.

According to the second aspect of the invention, since the surface of the second layered member has lubricity, the first layered member and the second layered member can be reliably secured when the interior body is curved. Can be slid into.

According to the invention of claim 3, since the lubricous sheet is provided between the first layered member and the second layered member, when the interior body is bent, The 1st layered member and the 2nd layered member can be made to slide reliably.

According to the invention of claim 4, the interior body is provided with the second
With the three-layer structure in which the first layered member is laminated on the upper and lower surfaces of the layered member, the first layered member can be thinned even when a sufficient thickness as a mattress device is secured. The compressive force acting on the back surface can be reduced.

According to the invention of claim 5, the mattress device according to claim 1 is used for the wake-up bed device, so that when the user is raised, the compressive force acting on the back surface of the user is reduced. it can.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a wake-up bed apparatus 1, which is equipped with a base 2. The base 2 is formed in a rectangular frame shape, and casters 3 with stoppers are provided at four corners of the lower surface thereof.

A bed frame 4 is provided on the upper surface side of the base 2. A headboard 5a is erected on one end side in the longitudinal direction of the bed frame 4, and a footboard 5b is erected on the other end side.

A floor plate 6 is provided on the upper surface side of the bed frame 4. The floor plate body 6 is divided into five along the longitudinal direction of the bed frame 4, and the center thereof is a fixed floor plate portion 7 fixed to the bed frame 4. A waist floor plate portion 8 and a back floor plate portion 9 are sequentially rotatably connected to the fixed floor plate portion 7 on the side of the headboard 5a.
A first leg floor plate portion 11 and a second leg floor plate portion 12 are sequentially rotatably connected to the fixed floor plate portion 7 on the footboard 6 side.

A drive unit 13 is provided on the bed frame 4. The drive unit 13 has a case 14, and a drive motor 15 is provided on one side of the case 14. A first drive shaft 16 is provided at one end of the case 14 on the headboard 5 side, and a second drive shaft 17 is provided at the other end of the footboard 5b. The first drive shaft 16 and the second drive shaft 17 are rotated in the directions shown by the arrows in the figure when the drive motor 15 operates.

A first arm 18 is attached to the first drive shaft 16.
One end of the second arm 19 is fixed, and one end of the second arm 19 is fixed to the second drive shaft 17. A pair of first rollers 21 is rotatably provided at the other end of the first arm 18, and the first rollers 21 are cross-sections provided on the back surface of the back floor plate portion 9. The U-shaped guide member 22 is rotatably engaged with the guide member 22. A second roller 23 is rotatably provided at the other end of the second arm 19, and the second roller 2 is provided.
4 contacts the lower surface of the first leg floor plate portion 11.

When the first arm 18 is driven in the upright direction by the operation of the drive motor 15, the back floor plate portion 9 is formed.
Is pressed by the first roller 21 to rotate in the standing direction, and the waist floor plate 8 is interlocked with the rotation of the back floor plate 9.

When the second arm 19 is driven in the upright direction by the operation of the drive motor 15, the second roller 2 is driven.
By 3, the first leg floor plate portion 11 rotates in the upward direction with the connecting end with the fixed floor plate portion 7 as a fulcrum. Since the second leg floor plate portion 12 is interlocked with the rise of the first leg floor plate portion 11, the leg floor plate portions 11 and 12 are bent in a substantially V shape.

The mattress device 3 is provided on the upper surface of the floor plate 6.
1 is placed. The mattress device 31 is configured to be bent in response to the undulation drive of each floor plate portion of the floor plate body 6, and the compressive force generated on the upper surface that is the inside of the curve when the bending is performed. The structure is reduced.

That is, the mattress device 31 is shown in FIG.
As shown in (a) and (b), it comprises an inner body 32 and a bag-shaped outer body 33 covering the inner body 32. The inner body 32 is composed of a pair of first layered members 34 that are divided and laminated to have substantially the same thickness, and a second layered member 35 in which the first layered member 34 is joined to the upper and lower surfaces. It has a layered structure.

The first layered member 34 is relatively soft,
A material having cushioning properties, such as hard cotton compressed into a rectangular sheet shape or a sheet-shaped urethane foam formed into a semi-hard sheet, is used.

The second layered member 35 is harder than the first layered member 34, has a smooth surface, and slides with the first layered member 34 joined to the upper and lower surfaces thereof. It is formed into a rectangular sheet by using an easy material such as foamed polyester. Further, in order to make it easier to bend, the second layered member 35 is formed with notches 36 along the width direction on the upper and lower surfaces of the middle portion in the longitudinal direction at predetermined intervals in the longitudinal direction.

The first layered member 34 and the second layered member 35, which are joined together, are bonded and fixed by an adhesive 37 at the center in the longitudinal direction, which is displaced from the place where the notch 36 is formed.

As a result, when the inner body 32 is curved at the midway portion in the longitudinal direction where the notch 36 of the second layered member 35 is formed, the notch 3 is formed more than the connecting portion by the adhesive 37.
The first layered member 34 and the second layered member 35 on the one end side located on the sixth side, that is, on the curved side, are curved while sliding relative to each other due to the difference in curvature.

The exterior body 33 covering the interior body 32
Is formed of a fabric that expands and contracts according to the curvature of the inner body 32. Therefore, the exterior body 32 does not hinder the smooth curve of the interior body 32.

As shown in FIG.
As shown in (a), an elongated slot 38 is formed penetrating in the thickness direction and extending in the longitudinal direction. A string-like member 39 is passed through the elongated hole 38, and both ends thereof are connected to the button 41 on the outer surface of the exterior body 33.

Therefore, the string-like member 39 restricts the first layered member 34 and the second layered member 35 of the inner body 32 from shifting in the width direction, and FIG.
As shown in FIG. 5, when the layered members 34 and 35 slide in the longitudinal direction, the long holes 38 do not hinder the movement.

The mattress device 31 is placed on the floor plate 6 of the wake-up bed device 1. In that case, the mattress device 31 positions the notch 36 formed in the second layered member 35 of the interior body 32 at the waist floor plate portion 8,
The one end side in the longitudinal direction in which the long hole 38 is formed is provided corresponding to the back floor plate portion 9 side.

In the wake-up bed apparatus 1 having the above structure,
When the upper half of the user U lying down on the mattress device 31 is raised, the drive motor 15 is operated to activate the back floor plate portion 9.
Raise. As a result, the waist floor plate portion 8 interlocks with the raising of the back floor plate portion 9, so that the upper half of the user U is raised as shown in FIG.

When the back floor plate portion 9 and the waist floor plate portion 8 are raised, the mattress device 31 is curved by the rise. The inner body 32 of the mattress device 31 has a three-layer structure including a pair of a first layered member 34 and a second layered member 35.

Therefore, at the time of bending, the second layered member 35 located below the first layered member 34 located on the upper surface side is curved with a large curvature, and further the lower side of the second layered member 35 is bent. The first layered member 34 located at is curved with a larger curvature. At that time, since the second layered member 35 is formed of a material having lubricity,
The pair of first layered members 34 joined to the upper and lower surfaces of the layered member 35 of FIG.

When the first layered member 34 and the second layered member 35 slide on each other during bending, the first layered member 34 and the second layered member 35, which are located on the upper side of the thickness of about one-third of the thickness of the inner body 32, are located. Only the compressive force generated in the first layer member 34 acts on the back surface of the user U. The thinner the thickness, the smaller the compressive force generated during bending. Therefore, the compressive force applied to the back surface of the user U is sufficiently smaller than the thickness of the mattress device 31, so that the discomfort and the pain given to the user U are greatly reduced.

Since the exterior body 33 covering the interior body 32 is formed of a stretchable cloth, the mattress device 3
The outer body 33 does not prevent the inner body 32 from being curved when the 1 is curved.

The present invention is not limited to the above-described embodiment, but can be variously modified. For example, the second layered member 3
Instead of forming 5 with a material having lubricity, as shown in FIG. 4, between the first layered member 34 and the second layered member 35, with lubricity, for example, a lubricant such as satin. By interposing the sex sheet 45, the first layered member 34 and the second layered member 35 may be easily slidable. In this embodiment, the lubricous sheet 45 is bonded and fixed to the first layered member 34, but the second layered member 3 is used.
5 may be joined and fixed, or when the lubricous sheet 45 has a relatively high rigidity, it may be simply interposed.

Further, the present invention is directed to the first layered member 34.
Instead of adhering and fixing the second layered member 35 and the second layered member 35 in the longitudinal direction with an adhesive, they may be joined with a connecting thread 46 as shown in FIGS. 5 (a) and 5 (b).

Although not shown, the inner body may have a two-layer structure in which one sheet of the first layered member and one sheet of the second layered member are joined to each other, and the inner body is further bent. In order to reduce the compressive force, it is desirable to make the upper first layered member as thin as possible. For example, in the case of a three-layer structure, by sufficiently thinning the upper first layered member, it is possible to affect the user. Even if the compressive force is reduced, the cushioning performance of the entire interior body can be maintained by the first layered member located on the lower side.

[0046]

According to the invention of claim 1, the inner body is divided into a first layered member and a second layered member having a predetermined thickness, and when the inner body is curved, the first layered member is curved. The layered member and the second layered member are slidable with respect to each other and separately curved in a state of being thinner than the entire thickness of the interior body.

Therefore, the thickness of the layered body on the upper side of the interior body can be made sufficiently smaller than the thickness of the entire interior body. Therefore, when the interior body is curved, it occurs in the layered member on the upper side. The compressive force can be reduced.

According to the second aspect of the invention, since the surface of the second layered member has lubricity, the first layered member and the second layered member slide when the interior body is curved. And then bend separately. Therefore, the compressive force generated on the surface of the first layered member is not affected by the thickness of the second layered member.

According to the third aspect of the invention, since the lubricating sheet is provided between the first layered member and the second layered member, when the interior body is bent, The first layered member and the second layered member slide and bend separately. Therefore, also in this case, the compressive force generated on the surface of the first layered member is not affected by the thickness of the second layered member.

According to the invention of claim 4, the interior body is provided with the second body.
With the three-layer structure in which the first layered member is laminated on both upper and lower surfaces of the layered member, the first layered member can be thinned even when a sufficient thickness as the mattress device is secured. It is possible to reduce the compressive force generated in the first layered member.

According to the fifth aspect of the invention, a mattress device having a small compressive force generated on the surface during bending is used as the wake-up bed device. Therefore, when the floor of the floor plate is raised and the user's upper body is raised, the compressive force that acts on the back surface of the user can be reduced, and thus the discomfort and distress given to the user can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a wake-up bed apparatus in which a mattress apparatus according to an embodiment of the present invention is sectioned.

FIG. 2A is a plan view in which a part of the exterior body of the mattress device is removed, and FIG.

3A is an enlarged cross-sectional view of one longitudinal end of the mattress device, FIG. 3B is an enlarged cross-sectional view of one longitudinal longitudinal end of the mattress device when curved, and FIG. The expanded sectional view of the longitudinal direction middle part of a layered member.

FIG. 4 is an enlarged cross-sectional view of a part of a mattress device showing another embodiment of the present invention.

FIG. 5 (a) is a plan view of a mattress device in which a part of an outer casing is removed according to still another embodiment of the present invention,
(B) is also a side view.

[Explanation of symbols]

4 ... Bed frame 6 ... Floor plate 13 ... Drive device (drive means) 31 ... Mattress device 32 ... Interior body 33 ... Exterior body 34 ... First layered member 35 ... Second layered member 45 ... Smooth seat

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47C 27/15 A47C 17/04

Claims (5)

(57) [Claims] 1. A mattress device comprising an inner body and an outer body covering the inner body, wherein the inner body is composed of a first layered member and a second layered member that are divided and laminated to have a predetermined thickness. The first layered member and the second layered member are configured to slide with each other when the inner body is bent, and the outer body is made of a material that expands and contracts according to the bending of the inner body. Mattress device characterized by being. 2. The surface of the second layered member is formed of a material having lubricity.
Mattress device as described. 3. The mattress according to claim 1, wherein a lubricative sheet is provided between the first layered member and the second layered member to allow them to slide with each other. apparatus. 4. The mattress device according to claim 1, wherein the inner body has a three-layer structure in which the first layered member is laminated on the upper and lower surfaces of the second layered member. 5. A wake-up bed apparatus for raising the upper half of the body of a user, wherein the bed frame is divided into a plurality of floor portions and is rotatably connected to each other. A mattress device provided on the floor plate body; and a drive means for driving the floor portion of the floor plate body up and down, wherein the mattress device has the structure according to claim 1. Wake up bed device.