JP3122711B2 - 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 wake-up bed apparatus 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 with reduced physical strength to raise his / her upper body when eating. The wake-up type bed device divides a floor plate provided on an upper surface of a bed frame into a plurality of floors in a longitudinal direction of the bed frame, and a floor portion corresponding to an upper body of a user. The back floor portion can be driven up and down by a drive mechanism.

Accordingly, if the back floor is driven in the upright direction, a patient who lies on the floor plate via a mattress can raise the upper body with almost no physical strength.

[0004] Conventionally, the above-mentioned floor plate body is, in addition to the above-mentioned back floor portion,
It has a fixed floor fixed to the bed frame, and one end of the raised floor is rotatably connected to the fixed floor.

[0005] Therefore, when the above-mentioned raised floor is driven by the drive mechanism in the upright direction in order to raise the patient's upper body, the raised floor is pivoted up in the upright direction with the connection with the fixed floor as a fulcrum. Will be.

When the back-raising floor is turned up in the upright direction, the mattress placed on the floor plate is bent while pressing the back of the patient. Since the mattress has a predetermined thickness, when it is bent in accordance with the rising of the raised floor portion, a compressive force inward in the longitudinal direction is generated on the upper surface inside the curve, and the lower surface serving as the outer surface. Generates a tensile force directed outward in the longitudinal direction.

Therefore, a compressive force generated on the upper surface of the mattress also acts on the back surface of the patient whose upper body is raised by the raised floor while being pressed by the upper surface of the mattress. Since the hips and thighs are pressed rearward (toward the back-raised floor), the waist is wrapped in the mattress, and the body, especially the abdomen, may be pressed.

It is good if the patient has physical strength and can lift the back of the body from the upper surface of the mattress by himself and remove the compressive force acting on the back, but if the patient does not have enough physical strength, the compressive force should be reduced. It may not be able to be removed on its own, in which case the patient may suffer more.

[0009]

[0010]

[0011]

[0012]

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

[0013] Therefore, unless the body is lifted from the mattress by itself, the compressive force applied to the back cannot be removed, so that the body, especially the abdomen, is pressed when raising the back,
It may cause discomfort to the user, especially when the user is a sick or elderly person, who can lift the body from the top of the mattress and can not remove the compressive force applied to the body by himself.
The pain given to the user sometimes increased.

[0014]

The present invention has been made based on the above circumstances, and an object of the present invention is to prevent a compressive force generated on an upper surface of a mattress from being applied to a rear surface of a user when the user raises his / her back. It is an object of the present invention to provide a wake-up type bed device capable of reducing discomfort and pain given to a person.

[0016]

According to the first aspect of the present invention, there is provided a rising bed apparatus capable of raising a user's upper body, wherein the bed frame is fixed to the bed frame. A floor plate having a fixed floor portion, a plate-shaped extruding floor portion and a back-raising floor portion each connected to one end side of the fixed floor portion in a rotatable manner, and a leg floor portion provided at the other end side. The body and the raised floor are driven up and down together with the extruded floor, and when the raised floor is driven in the raised direction, the raised floor is moved forward in the raised direction from the extruded floor. Driving means for driving in a bent state, wherein the driving means includes a driving source and a tip
Is provided with a pair of rollers at a predetermined interval.
Guide rollers provided on the lower surface of the above-mentioned raised floor
With the base end as a fulcrum.
An arm pivotally driven by the driving source.
The wake-up type bed device is characterized in that

[0017]

[0018]

According to the first aspect of the present invention, when the raised floor is raised at a predetermined angle, the extruded floor is positioned between the raised floor and the fixed floor. Since the user's buttocks are located at an angle of inclination smaller than that of the upper part and push the user's buttocks forward, the user's buttocks are prevented from sinking deeply into the bent portion of the mattress and being pressed.

[0019]

[0020]

An embodiment of the present invention will be described below with reference to the drawings. The wake-up type bed apparatus shown in FIG. This base 1 is formed in a rectangular frame shape,
Casters 2 with stoppers are provided at 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 are erected at corresponding positions in the width direction.

A bed frame 5 is provided on the base 1 by a vertical drive mechanism 4 so as to be vertically movable. A footboard fence 5a is provided at one longitudinal end of the bed frame 5, and a headboard fence 5b is provided at the other end.

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

In the middle of the mounting shaft 7, one end of a second link 9 is connected to the first link 6 and 90 as shown in FIG.
One end is fixedly provided so as to form a degree angle. The other end of the interlocking rod 11 is pivotally connected to the other end of the pair of second links 9.

In the middle of the interlocking rod 11, a bracket 1
The vertical drive mechanism 4 is attached to the bracket 12.
One end of the operating shaft 13 is pivotally mounted. The vertical drive mechanism 4 includes a drive source 14 composed of a motor, a tubular body 15 attached to the drive source 14, and is inserted into the tubular body 15 and is driven in the axial direction by the drive source 14. And the operating shaft 13. One end of a third link 16 is pivotally connected to the drive source 14. This third link 16
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 the operating shaft 13 is driven in the direction protruding 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 rotated in the direction of the arrow C in conjunction therewith. The bed frame 5 connected to the second link 9 and the second link 9 via the bracket 8 is driven from the lower position shown by the solid line in the same figure to the upward direction shown by the chain line.

As shown in FIGS. 1 and 2, a floor plate 21 is provided on the upper surface of the bed frame 5.
A mattress M is placed on the upper surface of the device. 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 21 has a fixed floor portion 22 fixedly provided at a central portion in the longitudinal direction of the bed frame 5. At one end of the fixed floor portion 22, a first leg floor portion 23 and a second leg floor portion 24 are provided.
And are sequentially connected rotatably.

An extruding floor 25 is rotatably connected to the other end of the fixed floor 22. This extruded floor 25
Is connected to a back-raising floor 26 in a rotatable manner. The fixed floor portion 22 and the extruded floor portion 25 correspond to the buttocks of the user U lying on the mattress M, and the first leg floor portion 23 is provided.
Represents the thigh, the second leg floor 24 corresponds to the shin below the knee, and the raised floor 26 corresponds to the upper body.

Each floor of the floor plate 21 is formed by blow molding synthetic resin. At the time of molding, the ends of the adjacent floors, in this embodiment, the fixed floor 22, the first leg floor 23, the both ends along the longitudinal direction of the bed frame 5 of the extrusion floor 25, and the second end. One end portions of the leg floor portion 24 and the back raising floor portion 26 are formed in an uneven connecting portion 31 as shown in FIG.

That is, the connecting portion 31 formed at the end of the adjacent floor portion is formed by forming a concave portion 31a and a convex portion 31b which fit into each other. A connecting shaft 32 is inserted through the concave portion 31a and the convex portion 31b in which the connecting portion 31 is fitted along the width direction of each floor portion.

That is, a through hole 31c penetrating in the width direction is simultaneously formed in the convex portion 31b of each floor at the time of molding.
Through hole 31 of a pair of floor projections 31b fitted into each other
By inserting the connection shaft 32 into the connection portion c, the connection portions 31 of the respective floor portions are rotatably connected. As described above, the first leg 23 and the second leg 2
4 and the extrusion floor 25 are rotatably connected.

A back-raising drive mechanism 35 for raising and lowering the back-raising floor 26 is provided at the center of the bed frame 5 in the longitudinal direction. This drive mechanism 35 is shown in FIG.
Has an elongated box 36 as shown in FIG. A first drive source 36a is provided on one side of the box 36, and a second drive source 36b is provided on the other side. These drive sources drive a drive mechanism (not shown) provided in the box 36.

When the first drive source 36a is operated, an axis is placed on one end side of the box 36 in the longitudinal direction and a bed frame is formed.
A first drive shaft 37 provided along the width direction of the system 5 is rotatably driven, and the second drive source 36
b operates, the first end of the box 36
The second drive shaft 38 provided with its axis parallel to the drive shaft 37 is driven to rotate. Both ends of the drive shafts 37 and 38 are rotatably supported by bearings 39 on both inner surfaces of the bed frame 5.

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

One end of a first arm 41 is fixed to each end of the first drive shaft 37. At the other end of the arm 41, a first roller 42 is rotatably provided. The first roller 42 comes into contact with 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 floor 2
3 is rotated in the ascending direction with one end connected to the fixed floor portion 22 as a fulcrum.
The leg floor 24 is adapted to be linked with the rotation of the first leg floor 23.

As shown in FIG. 1, the other end of the second leg
As shown in FIGS. 2 and 3, an intermediate 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 rises in conjunction with the first leg floor portion 23, the support lever 44 also moves in conjunction with the second leg floor portion 24. The other end is supported in a substantially U-shape with the one leg floor 23.

One end of a second arm 46, which is longer and stronger than the first arm 41, is fixed to both ends of the second drive shaft 38. At the other end of the second arm 46, as shown in FIG. 3, a pair of second rollers 47 are respectively rotated at predetermined intervals in the longitudinal direction of the second arm 46. It is provided freely.

A pair of second rollers 47 provided on each arm 46 are guide rails having a U-shaped cross section provided at both ends in the width direction of the lower surface of the back raising floor 26 along the longitudinal direction. The roller 48 is rotatably engaged.

Therefore, if the second drive shaft 38 is driven to rotate and the second arm 46 rotates in the upright direction,
The second roller 47 raises the back-raising floor 26 while rolling the guide rail 48.

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 back raising floor 26. Therefore, the back raising floor 26 is pushed up while bending forward in the rising direction at the connection portion with the extrusion floor 25, and the back raising floor 26 is raised compared to the extrusion floor 25. The angle increases. That is, the extruded floor portion 25 rises at a gentler angle between the fixed floor portion 22 and the back-raised floor portion 26 than the back-raised floor portion 26.

In the wake-up type bed apparatus having the above-described configuration, when the upper body of the user who is lying on the mattress M is raised, the second drive source 36b of the back-up drive mechanism 35 is operated. When the second drive source 36b is operated, the second drive shaft 38 is driven to rotate, and as shown in FIG.
Arm 46 is driven in the upright direction. Thereby,
Since the second roller 47 provided on the second arm 46 pushes up the raised floor 26 via the guide rail 48, the raised floor 26 rises.

An extruding floor 25 is provided between the back raising floor 26 and the fixed floor 22, and the second arm 46 is provided.
Pushes up only the back raising floor 26. Therefore, since the back raising floor 26 rises while bending at the connection portion with the extrusion floor 25, the rising angle becomes larger than that of the extrusion floor 25. In other words, the extruded floor portion 25 and the fixed floor portion 22 and the back raised floor portion 26 have a gentler rising angle than the raised floor portion 26.
Located between.

Therefore, the portion corresponding to the buttocks of the user U of the mattress M placed on the floor plate body 21 has a rising angle of the above-mentioned extruded floor 25 which is gentler than that of the raised floor 26. Therefore, the portion corresponding to the above-mentioned extrusion floor portion 25 is hardly bent. That is, the extruded floor 25 of the mattress M
Is pushed forward by the pushing floor portion 25, and the degree of bending is reduced accordingly.

Therefore, when raising the back, the buttocks of the user U who lies on the mattress M are prevented from being wrapped by the portion corresponding to the pushing floor 25, so that the upper surface of the mattress M is bent. The buttocks of the user U are less likely to be pressed by the generated compressive force.

A second arc for raising the back-raising floor 26 is described.
A guide rail 48 on the back of the back raising floor 26 is provided on the arm 46.
Are provided at predetermined intervals.

Therefore, the raised back-raising floor 26 is raised.
Even if a force in the falling direction indicated by the arrow X in FIG. 2 is applied to the upper end of the floor, the back raising floor 26 is prevented from falling backward with the connection end with the pushing 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 leg portion 23 is rotated by the first roller 42 provided on the first arm 41 about the connection 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 U-shape,
The legs of the user U are bent, and the buttocks are displaced forward and are less likely to move.

On the other hand, each floor portion of the floor plate 21 is blow-molded with synthetic resin, and at the time of molding, a concave portion 31a and a convex portion are fitted into the rotatably connected ends of each floor portion. 31b are formed at the same time, and these concave portions 31a and convex portions 31b are connected to the connecting shaft 32.
So as to be rotatably connected.

As a result, the pair of adjacent floor portions can be rotatably connected only by inserting the connection shaft 32 into the through hole 31c of the connection portion 31 fitted into each other. Therefore, the connection operation is easy, and the connection state is hardly damaged by long-term use. Further, the connecting shaft 3 inserted into the connecting portion 31
Since 2 is not exposed to the outside and is not exposed to the outside like a conventional hinge, the appearance is good.

[0049]

As described above, according to the first aspect of the present invention, the floor plate on which the mattress is placed is raised with the fixed floor fixed to the bed frame and the upper body of the user. An extruded floor is provided between the raised floor and the raised floor, and when the driving means drives the raised floor together with the extruded floor in the upright direction, the raised floor is more raised than the extruded floor. It bends forward.

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

[0051]

[0052]

[Brief description of the drawings]

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

FIG. 2 is a side view showing a state in which the back raising floorboard is raised.

FIG. 3 is a plan view of a bed frame and a base from which a floor plate has been removed.

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

FIG. 5 is a side view for explaining the operation of a 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, 25: extrusion floor, 26: back-raising floor, 31: connecting part, 31a: concave, 31b: convex, 3
2. Connection shaft, 35 Drive mechanism for driving back (drive means).

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47C 20/08 A61G 7/015

Claims (1)

(57) [Claims] 1. A wake-up type bed apparatus capable of raising a user's upper body, comprising a bed frame, and a fixed floor fixed to the bed frame. A floor plate having an extruding floor portion and a back raising floor portion sequentially rotatably connected to each other and a leg floor portion provided on the other end side; and raising and lowering the back raising floor portion together with the extruding floor portion; Driving means for driving the raised floor portion in a state of being bent forward in the rising direction relative to the extruded floor portion when driving the raised floor portion in the raising direction, wherein the driving means includes a driving source and , A pair of rollers at the tip
Provided at regular intervals, these pair of rollers
Rollably engaged with guide rails provided on the lower surface of the part
And rotate it with the above drive source with the base end as a fulcrum.
Characterized in that it comprises an arm that is driven
Floor bed equipment.