JPH08280484A - Wake-up bed equipment - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a wake-up bed apparatus in which the back surface of a user, particularly the buttocks, is less likely to be pressed when raising the back. A wake-up type bed device capable of raising the upper half of the body of a user, having a bed frame 5 and a fixed floor portion 22 fixed to the bed frame, and an extruding floor on one end side of the fixed floor portion. A floor plate 21 having a floor portion 21 and leg back portions 23 and 24 provided at the other end thereof and a back raised floor portion, which is rotatably driven together with the push floor portion. Along with this, when driving the back-raising floor portion in the rising direction, the back-raising floor driving portion 35 means for driving the back-raising floor portion in a state in which the back-raising floor portion is bent forward in the raising direction with respect to the push-out floor portion. It is characterized by

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wake-up bed apparatus which is particularly suitable for sick people.

[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
There is a fixed floor portion fixedly provided on the bed frame, and one end portion of the back raising floor portion is rotatably connected to the fixed floor portion.

Therefore, when the back raising floor is driven in the standing direction by the drive mechanism in order to raise the upper half of the patient, the back raising floor is pivotally raised in the standing direction with the connecting portion with the fixed floor as a fulcrum. It will be.

When the back-raised 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 rising of the back raising floor, a compressive force inward in the longitudinal direction is generated on the upper surface that is the inside of the curve, and the lower surface that is the outer surface. A tensile force outward in the longitudinal direction is generated at.

Therefore, since the compression force generated on the upper surface of the mattress acts on the back surface of the patient whose upper body is raised by the back raised floor while being pressed by the upper surface of the mattress, the back surface is compressed by the compression force. Since the lower part is pressed and the buttocks and thighs are pressed backward (toward the back raised floor part), the lumbar part may be wrapped in the mattress, and the body, particularly the abdomen, may be pressed.

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.

Further, in the wake-up type bed apparatus, among the plurality of divided floor portions constituting the floor plate body, at least the floor portion which is driven to rise and fall in order to raise the user's upper body,
It must be pivotally connected to another floor adjacent to that floor.

Conventionally, when a pair of adjacent floor portions of a floor plate is rotatably connected, adjacent end portions of the floor portions are connected by a plurality of hinges. Since the floor has a large width, it may not be possible to obtain sufficient connection strength unless both the widthwise end portions and the middle portion are connected by the hinges. Therefore, the floors are usually connected by three or more hinges.

By the way, when the floors are connected by the hinges, the hinges are attached to a pair of adjacent floors by screws. Therefore, it often takes a lot of work to attach the hinge. Moreover, the screwed hinge may loosen the screw due to long-term use and lose the connection state.

[0012]

As described above, in the conventional wake-up type bed apparatus, when the back-raising floor portion is raised in the standing direction, the upper surface of the mattress placed on the floor plate moves the back surface of the patient. By being bent while being pressed, the compressive force generated inward in the longitudinal direction on the upper surface of the mattress strongly acts on the back surface of the patient.

Therefore, the compression force acting on the back surface cannot be removed unless the body is lifted from the mattress by itself, so that the body, particularly the abdomen, is pressed when raising the back,
It may cause discomfort to the user, especially when the user is sick or elderly and can not remove the compression force applied to the body by lifting the body from the upper surface of the mattress.
There has been a case where the user's pain is increased.

Further, in order to make the floor of the floor plate rotatable, if adjacent floors are connected by a hinge, it takes a lot of time and labor to attach the hinge with a screw, or the screw is loose due to long-term use. There were some cases where the connection was lost.

The present invention has been made in view of the above circumstances. An object of the present invention is to prevent the compressive force generated on the upper surface of the mattress when raising the back from acting on the rear surface of the user. An object of the present invention is to provide a wake-up type bed device capable of reducing the discomfort and pain caused to the person. Another object of the present invention is to provide a wake-up type bed device in which the floor portion can be reliably and rotatably connected by a simple operation.

[0016]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention as set forth in claim 1 is a bed frame and a bed frame in a rising bed apparatus capable of raising the upper half of the body of a user. A floor plate body having a fixed floor portion fixed to, an extruding floor portion and a back raising floor portion are sequentially rotatably connected to one end side of the fixed floor portion, and a leg floor portion is provided on the other end side. , While raising and lowering the back raising floor together with the extrusion floor, when driving the back raising floor in the rising direction, the back raising floor is bent forward in the rising direction with respect to the pushing floor. And driving means for driving in a state.

The invention according to claim 2 has a bed frame, and the bed frame includes a floor plate body which is divided into a plurality of floor portions and is rotatably connected to each floor portion. In a wake-up type bed device provided with the rotatable floor portion of the floor plate undulatingly driven by a driving means, the concavo-convex connecting portions are fitted into the respective end portions of the adjacent floor portions. Correspondingly formed, these connecting portions are rotatably connected by a connecting shaft provided along the width direction of the floor portion.

[0018]

According to the invention of claim 1, when the back raising floor is erected at a predetermined angle, the push-out floor portion is located between the back raising floor portion and the fixed floor portion. Since the user's buttocks are pushed forward with an inclination angle smaller than that of the lower part, the user's buttocks are prevented from being deeply depressed and pressed by the bent portion of the mattress.

According to the second aspect of the present invention, the adjacent end portions of the plurality of divided floor portions are formed by fitting them into the concavo-convex connecting portions, and are rotatably connected through the connecting shafts. , Connection work is easy, and high connection strength is obtained.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The wake-up type bed apparatus shown in FIG. 1 is equipped with a base 1. This base 1 is formed in a rectangular frame shape,
Casters 2 with stoppers are provided at the four corners of the lower surface. At both ends in the longitudinal direction on both sides of the base 1,
A pair of columns 3 is provided upright at corresponding positions in the width direction.

A bed frame 5 is vertically movable on the base 1 by a vertical drive mechanism 4. A footboard fence 5a is provided on one end side of the bed frame 5 in the longitudinal direction, and a headboard fence 5b is provided on the other end side.

As shown in FIG. 3, the vertical drive mechanism 4 has a first link 6 whose one end is rotatably supported by the upper ends of the columns 3. The other ends of the pair of first links 6 located at one end side and the other end side in the longitudinal direction of the bed frame 5 are connected and fixed to both ends of the mounting shaft 7, respectively. Both ends of the mounting shaft 7 are fixed to a pair of brackets 8 vertically extending from both widthwise inner surfaces of both longitudinal ends of the bed frame 5.

As shown in FIG. 5, one end of a second link 9 is provided in the middle of the mounting shaft 7 so that the first link 6 and the first link 90 are connected to each other.
One end is fixedly attached so as to form an angle of degrees. The ends of the interlocking rods 11 are pivotally attached to the other ends of the pair of second links 9.

A bracket 1 is provided in the middle of the interlocking rod 11.
2 is fixed, and the vertical drive mechanism 4 is attached to the bracket 12.
One end of the operating shaft 13 of the above is pivotally attached. The vertical drive mechanism 4 includes a drive source 14 composed of a motor, a cylindrical body 15 attached to the drive source 14, a cylindrical body 15 inserted into the cylindrical body 15 and driven forward and backward in the axial direction by the drive source 14. It is composed of the operating shaft 13. One end of a third link 16 is pivotally attached to the drive source 14. This third link 16
The other end of is fixed to the middle of one mounting shaft 7.

Therefore, if the drive source 14 of the vertical drive mechanism 4 is actuated and driven in the direction in which the operating shaft 13 projects from the cylindrical body 15, the interlocking rod 11 moves in the direction of arrow A as shown in FIG. By being driven, the second link 9 is rotationally driven in the ascending direction shown by the arrow B, and the first link 6 is interlocked and rotated in the direction of the arrow C. The bed frame 5, which is connected to the first link 6 and the second link 9 via the bracket 8, is driven from the lower position shown by the solid line in the figure to the upward direction shown by the chain line.

A floor board 21 is provided on the upper surface of the bed frame 5 as shown in FIGS. 1 and 2, and the floor board 21 is provided.
A mattress M is placed on the upper surface of the. The floor plate 21 is divided into a plurality of floor portions formed in a hollow plate shape, in this embodiment, five floor portions. That is, the floor plate body 21 has a fixed floor portion 22 fixedly provided at the central portion in the longitudinal direction of the bed frame 5. A first leg floor portion 23 and a second leg floor portion 24 are provided on one end side of the fixed floor portion 22.
And are sequentially rotatably connected.

An extruding floor portion 25 is rotatably connected to the other end of the fixed floor portion 22. This extrusion floor 25
A back raised floor portion 26 is rotatably connected to the. The fixed floor portion 22 and the push-out floor portion 25 correspond to the buttocks of the user U lying on the mattress M, and the first leg floor portion 23.
Is the thigh, the second leg floor 24 corresponds to the shin below the knee, and the back raised floor 26 corresponds to the upper body.

Each floor of the floor plate 21 is formed by blow molding a synthetic resin. At the time of molding, the end portions of the adjacent floor portions, in the case of this embodiment, the fixed floor portion 22, the first leg floor portion 23, both ends of the extruded floor portion 25 along the longitudinal direction of the bed frame 5 and the second portion. As shown in FIG. 4, one end of the leg floor 24 and one end of the back-raised floor 26 are formed in an uneven connection portion 31.

That is, the connecting portions 31 formed at the ends of the adjacent floor portions are formed with the concave portions 31a and the convex portions 31b which fit into each other in a corresponding manner. A connecting shaft 32 is inserted into the recessed portion 31a and the protruding portion 31b of the connecting portion 31 which are fitted therein, along the width direction of each floor portion.

That is, a through hole 31c penetrating in the width direction is formed at the same time at the time of molding in the convex portion 31b of each floor,
Through-holes 31 of a pair of floor projections 31b fitted in each other
By inserting the connecting shaft 32 into c, the connecting portions 31 of the respective floors are rotatably connected. As described above, the first leg 23 and the second leg 2 are provided with respect to the fixed floor 22.
4 and the push-out floor portion 25 are rotatably connected.

At the center of the bed frame 5 in the longitudinal direction, there is provided a back raising drive mechanism 35 for driving the back raising floor 26 up and down. This drive mechanism 35 is shown in FIG.
As shown in FIG. A first drive source 36a is provided on one side surface of the box 36, and a second drive source 36b is provided on the other side surface thereof. These drive sources drive a drive mechanism (not shown) provided in the box 36.

When the first drive source 36a is activated, the axis line is moved to the bed frame at one end of the box 36 in the longitudinal direction.
A first drive shaft 37 provided along the width direction of the frame 5 is driven to rotate, and the second drive source 36 is provided.
When b is actuated, the first end is attached to the other end of the box 36.
The second drive shaft 38, which is provided with its axis parallel to the drive shaft 37, is rotationally driven. Both ends of the drive shafts 37 and 38 are rotatably supported by bearings 39 on both inner surfaces of the bed frame 5, respectively.

The operation of the first drive source 36a and the second drive source 36b can be selected by a remote controller (not shown) regardless of whether they are operating separately or simultaneously. .

One end of a first arm 41 is fixed to both ends of the first drive shaft 37. A first roller 42 is rotatably provided at the other end of these arms 41. The first roller 42 abuts on a rail 43 provided on the lower surface of the first leg floor 23. Therefore, if the first arm 41 is driven in the upright direction by the first drive shaft 37, the first leg part 2
Since 3 is rotated in the ascending direction with one end connected to the fixed floor portion 22 as a fulcrum, the second end having one end connected to the other end
The leg floor 24 is adapted to interlock with the rotation of the first leg floor 23.

On the other end side of the second leg floor 24, as shown in FIG.
As shown in FIGS. 2 and 3, a middle portion of the support lever 44 bent in a U shape is rotatably connected. Both ends of the support lever 44 are pivotally attached to both inner surfaces of the bed frame 5. Therefore, when the second leg floor portion 24 moves up in conjunction with the first leg floor portion 23, the support lever 44 also interlocks, and thus the support lever 44 causes the second leg floor portion 24 to move to the first position. The other end is supported in a state of being substantially V-shaped with the leg floor 23 of No. 1.

At one end of the second drive shaft 38, one end of a second arm 46, which is longer than the first arm 41 and has a high strength, is fixed. At the other end of the second arm 46, as shown in FIG. 3, a pair of second rollers 47 respectively rotate in the longitudinal direction of the second arm 46 at a predetermined interval. It is provided freely.

A pair of second rollers 47 provided on each arm 46 is a guide rail having a U-shaped cross section provided along the longitudinal direction at both widthwise ends of the lower surface of the back raising floor 26. -Rotably engaged with the lever 48.

Therefore, if the second drive shaft 38 is rotationally driven and the second arm 46 rotates in the standing direction,
The second roller 47 rolls up the guide rail 48 to raise the back raising floor portion 26.

An extruding floor portion 25 is provided between the back raising floor portion 26 and the fixed floor portion 22, and the second roller 47 is provided.
Pushes up only the raised floor 26. Therefore, the back raising floor portion 26 is pushed up while bending forward in the raising direction at the connecting portion with the pushing floor portion 25, so that the back raising floor portion 26 is raised more than the pushing floor portion 25. The angle increases. That is, the push-out floor portion 25 rises between the fixed floor portion 22 and the back-raised floor portion 26 at a gentler angle than the back-raised floor portion 26.

In the wake-up bed apparatus having the above structure, when the upper half of the body of the user lying on the mattress M is raised, the second drive source 36b of the back raising drive mechanism 35 is operated. When the second drive source 36b is operated, the second drive shaft 38 is rotationally driven, so that the second drive shaft 38 is driven as shown in FIG.
The arm 46 is driven in the standing direction. Thereby,
Since the second roller 47 provided on the second arm 46 pushes up the back raising floor portion 26 via the guide rail 48, the back raising floor portion 26 rises.

An extruding floor portion 25 is provided between the back raising floor portion 26 and the fixed floor portion 22, and the second arm 46 is provided.
Pushes up only the raised floor 26. Therefore, since the back raising floor portion 26 is bent and rises at the connecting portion with the extrusion floor portion 25, the rising angle is larger than that of the extrusion floor portion 25. That is, the push-out floor portion 25 and the back-raised floor portion 26 have a gentler rising angle than the back-raised floor portion 26.
Located between.

Therefore, in the portion corresponding to the buttocks of the user U of the mattress M placed on the floor plate 21, the extruding floor portion 25 has a rising angle that is gentler than that of the back raising floor portion 26. The portion corresponding to the extrusion floor portion 25 is hard to be bent. That is, the extrusion floor portion 25 of the mattress M
The portion corresponding to is pushed forward by the push-out floor portion 25, and the degree of bending is reduced accordingly.

Therefore, when the back is raised, the buttocks of the user U lying on the mattress M are prevented from being wrapped up by the portion corresponding to the push-out floor portion 25, so that the upper surface of the bent mattress M is prevented. The generated compressive force makes it difficult for the buttocks of the user U to be pressed.

A second arm for raising the back raising floor 26.
The guide rail 48 on the back of the back raised floor 26
Two second rollers 47 that engage with are provided at predetermined intervals.

Therefore, the raised back floor 26 is raised.
Even if a force in the fall direction indicated by the arrow X in FIG. 2 is applied to the upper end side of the above, the back-raised floor 26 is prevented from falling backward with the connecting end with the push-out floor 25 as a fulcrum.

When the first drive source 36a is operated together with the second drive source 36b to rotate the first drive shaft 37, the first arm 41 is driven in the upright direction. Therefore, the first roller 42 provided on the first arm 41 causes the first leg floor portion 23 to rotate about the connecting end with the fixed floor portion 22 as a fulcrum. Since the two leg floors 24 are interlocked and these leg floors bend in a substantially V shape,
The legs of the user U are bent, and the buttocks are displaced forward and become difficult to move.

On the other hand, each floor portion of the floor plate 21 is blow-molded with a synthetic resin, and at the time of molding, the concave portions 31a and the convex portions fitted into the rotatably connected ends of the floor portions are mutually fitted. 31b is formed at the same time, and the concave portion 31a and the convex portion 31b are connected to each other by the connecting shaft 32.
It was designed to be connected so that it can rotate freely.

Therefore, the pair of adjacent floor portions can be rotatably connected only by inserting the connecting shaft 32 into the through hole 31c of the connecting portion 31 fitted into each other, so that it can be connected by a hinge as compared with the conventional structure. Therefore, the connection work is easy, and there is almost no possibility that the connection state will be lost due to long-term use. Further, the connecting shaft 3 inserted through the connecting portion 31
Since 2 is not exposed to the outside and is not exposed to the outside like a conventional hinge, it is good in appearance.

[0049]

As described above, according to the invention described in claim 1, the floor plate body on which the mattress is placed, the fixed floor portion fixed to the bed frame, and the upper body of the user are raised. When an extruding floor is provided between the back raising floor and the back raising floor is driven by the drive means together with the pushing floor in the standing direction, the back raising floor rises more than the pushing floor. I tried to bend forward.

Therefore, the extruded floor portion and the back-raised floor portion are sequentially bent with respect to the fixed floor portion, so that the rising angle of the extruded floor portion is larger than that of the back-raised floor portion. As a result, the degree of bending of the portion of the mattress corresponding to the extruded floor portion can be reduced. As a result, the user's buttocks corresponding to the push-out floor portion are pushed forward and are less likely to be wrapped up by the bending mattress, so that it is possible to reduce the feeling of pressure given to the user when raising the back.

According to the second aspect of the present invention, the concavo-convex connecting portions that fit into each other are formed at the mutually matching ends of the floor portion of the floor plate body, and the connecting shaft is inserted through the connecting portions. ,
The pair of adjacent floor portions are rotatably connected.

Therefore, compared with the conventional connecting structure using the hinge, not only the workability can be improved, but also the connected state can be maintained in a good state for a long period of time.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention in a state where a back raising floorboard is laid down.

FIG. 2 is a side view showing a state in which the back raising floor plate is also raised.

FIG. 3 is a plan view of a bed frame and a base in which the floor plate is also removed.

FIG. 4 is a plan view of the floor plate.

FIG. 5 is a side view for explaining the operation of the vertical drive mechanism for moving the bed frame up and down.

[Explanation of symbols]

5 ... Bed frame, 21 ... Floor plate, 22 ... Fixed floor,
23, 24 ... Leg floor part, 25 ... Extrusion floor part, 26 ... Back raising floor part, 31 ... Connection part, 31a ... Recessed part, 31b ... Convex part, 3
2 ... connecting shaft, 35 ... drive mechanism (drive means) for raising the back.

Claims (2)

[Claims] 1. A wake-up type bed device capable of raising the upper body of a user, comprising a bed frame and a fixed floor portion fixed to the bed frame, and an extruding floor on one end side of the fixed floor portion. And a back raised floor are sequentially rotatably connected and a leg floor is provided on the other end side, and the back raised floor is driven up and down together with the extruded floor, and the back raised floor is also driven. 1. A wake-up type bed apparatus, comprising: a drive unit that drives the back-raising floor portion in a state where the back-raised floor portion is bent forward in the rising direction with respect to the push-out floor portion when the portion is driven in the rising direction. 2. A bed frame, which is provided with a floor plate body which is divided into a plurality of floor parts and which is rotatably connected to each other. The floor plate body is rotatable. In a wake-up type bed device in which different floors are driven up and down by a drive means, concavo-convex connecting portions are formed at the respective ends of adjacent floor portions so as to fit into each other. Is a wake-up type bed device, which is rotatably connected by a connecting shaft provided along the width direction of the floor portion.