JP2004065315A - Bed-raising type bed unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bed-raising type bed unit which enables a back raising bed part to be easily and accurately stopped at a prescribed angle. <P>SOLUTION: This bed-raising type bed unit is equipped with: a bed frame 4; a bed panel body 11 which is provided in the bed frame 4 and partially formed as the back raising bed part 11a capable of rising and falling; a rise/fall driving mechanism 12 for driving a movable bed part of the panel body 11 in a rising/falling manner; a remote controller 20 for making the panel part 11 rise/fall by operating the mechanism 12; and a control device for stopping the motion of the bed part 11 for a given length of time without reference to the operations of the remote controller 20, when the angle of the rise/fall of the bed part 11 reaches the prescribed angle by the operations of the controller 20. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wake-up type bed device capable of raising and lowering a part of a floor plate.
[0002]
[Prior art]
In a bed apparatus for a sick person, a so-called wake-up bed apparatus is used in order to assist a patient with reduced physical strength to raise his / her upper body when eating. The wake-up type bed device is a floor plate provided on the upper surface of the bed frame, which is divided into a plurality of floors in the longitudinal direction of the bed frame, and a floor corresponding to the upper body of the user. The back raising floor is configured to be able to be driven up and down by an up and down drive mechanism.
[0003]
On the other hand, for a user living in bed for a long period of time, heaviness of the body, for example, the buttocks and the back, is likely to be pressed, so that rash may easily occur in these parts.
[0004]
By the way, in the wake-up type bed apparatus, when the user raises his / her upper body from the supine state by the back-raising floor, the load on the back is gradually reduced. If the raising angle of the upper body becomes too large, the weight of the upper body is applied to the buttocks, so that the burden on the buttocks increases. Conversely, if the angle of elevating the upper body is too small, the load on the upper body is applied to the back, so that the load applied to the back is not reduced.
[0005]
Therefore, if the upper body of the user can be raised and maintained at an angle where the burden on the buttocks and the back of the user is minimized, it is effective in preventing humiliation of the buttocks and the back, and further humiliation has occurred In some cases, pain can be reduced.
[0006]
Conventionally, to raise the upper body so that the burden on the buttocks and the back is at the least angle, the user presses the switch on the operation unit to raise the back and raise the floor, and the angle is intuitively If it is determined that it is just right, the operation of the operation unit is stopped to hold the back raising floor at a predetermined angle.
[0007]
[Problems to be solved by the invention]
However, if the angle of the raised floor is set with the sense of the user, it is not easy to surely set the raised floor to an optimal angle that minimizes the burden on both the buttocks and the back. In some cases, it was difficult to always set the angle at a fixed angle.
[0008]
An object of the present invention is to provide a wake-up type bed device that can reliably and easily position the raised floor portion at an optimum angle that minimizes the burden on both the buttocks and the back of the user. is there.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 includes a bed frame,
A floor plate provided on the bed frame and formed on a movable floor part that can be raised and lowered,
An up-and-down driving mechanism that drives up and down the movable floor portion of the floor plate;
An operating unit for operating the up / down driving mechanism to raise / lower the movable floor unit;
Control means for stopping the movement of the movable floor portion for a predetermined time regardless of the operation of the operation portion when the undulation angle of the movable floor portion becomes a predetermined angle by the operation of the operation portion,
A wake-up type bed device comprising:
[0010]
According to a second aspect of the present invention, the control means includes a detecting section for detecting an undulating angle of the movable floor section, and a detection signal when the detecting section detects that the movable floor section has reached a predetermined angle. A gate circuit that stops a drive signal output from the operation unit to the undulation drive mechanism by a signal from the timer circuit for a time set in the timer circuit;
2. The wake-up type bed apparatus according to claim 1, further comprising:
[0011]
According to a third aspect of the present invention, in the wake-up type bed apparatus according to the first aspect, an angle of the movable floor portion detected by the detection section is about 30 degrees.
[0012]
According to the present invention, when the angle of the movable floor reaches a predetermined angle, the movement of the movable floor stops for a certain period of time. It can be at a predetermined angle.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 shows a wake-up type bed apparatus 1 according to an embodiment of the present invention. The wake-up type bed apparatus 1 includes a base frame 2. Leg members 3 are provided at four corners of the base frame 2, and the leg members 3 hold the base frame 2 at a predetermined height.
[0015]
A bed frame 4 is provided on the base frame 2. The bed frame 4 is driven vertically by a vertical drive mechanism 5. The vertical drive mechanism 5 has a drive source 6 and a plurality of links 7 driven to rotate by the drive source 6. Each link 7 has one end pivotally connected to the base frame 2 and the other end pivotally connected to the bed frame 4.
[0016]
Therefore, when the link 7 is driven by the drive source 6, the bed frame 4 moves up and down on the base frame 2.
[0017]
A floor plate 11 is placed on the upper surface of the bed frame 4. The floor panel 11 includes a raised floor 11a as a movable floor, a first waist floor 11b, a second waist floor 11c, a fixed floor 11d, a first raised floor 11e, and a second leg. It is divided into a raised floor 11f. Adjacent floors are rotatably connected to each other, and the fixed floor 11d is fixed to the bed frame 4.
[0018]
An undulation drive mechanism 12 is provided on the lower surface side of the bed frame 4. The raising / lowering drive mechanism 12 has an elongated box-shaped drive unit 13. A drive source 14 (only one is shown) is provided on one side surface and the other side surface of the drive unit 13.
[0019]
By operating one drive source 14, a back-raising arm (not shown) is driven up and down via one drive shaft (not shown) built in the drive unit 13. As a result, the back-raising floor 11a can be raised as shown by a chain line. When the other drive source 14 is operated, the leg-lifting arm (not shown) is driven up and down via the other drive shaft (not shown), whereby the first and second leg-lifting floor portions 11e and 11f are indicated by chain lines. As shown, it can be raised in a mountain shape.
[0020]
At one end and the other end of the bed frame 4 in the longitudinal direction, mounting portions 14 are provided. A headboard body 15 is detachably provided on one of the attachment portions 14, and a footboard body 16 is also detachably provided on the other attachment portion 14.
[0021]
The raising and lowering drive mechanism 12 can be remotely controlled by a remote controller 20 as an operation unit. The remote controller 20 includes a raising switch 21 for raising the bed frame 4, a lowering switch 22 for lowering the bed frame 4, a raising switch 23 for driving the raising floor 11 a in the raising direction, a lowering switch 24 for driving the lowering direction, The leg-raising switch 25 drives the leg raising floor 11e in the up-and-down direction, the leg-lowering switch 26 drives in the falling direction, and the back-raising switch 23 and the back-lowering switch 24 when the back-raising floor 11a is pressed. There is provided a changeover switch 27 for switching whether or not to link the first leg-raising floor 11e to the ups and downs of the vehicle.
[0022]
When the switch 27 is pressed once, the on state is maintained. When the switch 27 is pressed again, the switch is turned off. The other switches 21 to 26 except this switch are kept on while being pressed, and turned off when the switch is released.
[0023]
When the back raising switch 23 is pressed to drive the back raising floor 11a in the rising direction, and when the back lowering switch 24 is pressed to drive the back raising floor 11a in the rising direction, the back raising floor 11a is moved. When 11a becomes a predetermined angle, for example, an angle of 30 degrees, this is detected by an angle detection sensor 31 such as a limit switch.
[0024]
Experiments have confirmed that when the back raising floor 11a is at an angle of 30 degrees, the load applied to the back of the user whose upper body is raised and the load applied to the buttocks are minimized. Therefore, by raising the back raising floor 11a at an angle of 30 degrees, it is possible to prevent user's rash and reduce the burden on the body.
[0025]
The angle detection sensor 31 may directly detect the back-raised floor portion 11a driven up and down by the limit switch, but indirectly detects the back-up floor portion 11a by the angle of the drive shaft driven by the drive source 14 of the up-down drive mechanism 12. It may be.
[0026]
A detection signal from the angle detection sensor 31 is input to a pulse generation circuit 33 provided in a control device 32 as control means. A pulse signal is output from the pulse generation circuit 33 to which the detection signal has been input, and the pulse signal is input to the timer circuit 34. The timer circuit 34 to which the pulse signal has been input starts operating.
[0027]
The output from the timer circuit 34 is input to the gate circuit 35. The back raising signal by operating the back raising switch 23 and the back lowering signal by operating the back lowering switch 24 are input to the motor drive circuit 36 for operating the drive source 14 via the gate circuit 35.
[0028]
The gate circuit 35 is shut off by a signal from the timer circuit 34 for a predetermined time after the time set in the timer circuit 34 elapses after the timer circuit 34 starts operating.
[0029]
As a result, the signal generated by turning on the back raising switch 23 and the back lowering switch 24 is cut off by the gate circuit 35, so that the operation of the driving source 14 is stopped. The set time of the timer circuit 34 is set to several seconds, for example, about 1 to 2 seconds.
[0030]
That is, when raising or lowering the back-raising floor 11a, if the back-raising floor 11a is at an angle of about 30 degrees, the raising or lowering operation is stopped for 1 to 2 seconds.
[0031]
Note that the control device 32 is provided in the drive unit 13 of the undulation drive mechanism 12.
[0032]
Next, the operation in the case of raising and lowering the back-raising floor 11a by the wake-up type bed apparatus 1 having the above configuration will be described. To drive the raised floor portion 11a of the floor plate body 11 in the lying state in the rising direction, the user raises the back raising switch 23 provided on the remote controller 20. As a result, a drive signal for operating the drive source 14 is input from the remote controller 20 to the drive source 14 via the gate circuit 35 and the motor drive circuit 36. As a result, the drive source 14 is operated, so that the back-raised floor 11a is driven in the rising direction.
[0033]
When the rising angle of the back-raised floor 11a becomes about 30 degrees, this is detected by the angle detection sensor 31. The detection signal from the angle detection sensor 31 is input to the pulse generation circuit 33. As a result, a pulse signal is output from the pulse generation circuit 33 to the timer circuit 34, and the timer circuit 34 starts operating.
[0034]
When the timer circuit 34 starts operating, the gate circuit 35 is shut off for one to two seconds when the timer circuit 34 times out. During that time, a signal by operating the back-up switch 23 is input to the motor drive circuit 36. Will not be. Therefore, the raising of the back raising floor 11a stops.
[0035]
When the user wants to stop the back-raising floor 11a at an angle of about 30 degrees, the movement is temporarily stopped when the back-raising floor 11a is at an angle of 30 degrees. By releasing the operation of the raising switch 23, the back raising floor 11a can be stopped at an angle of approximately 30 degrees.
[0036]
In other words, the user only needs to release the operation of the back-raising switch 23 when he / she senses that the movement of the back-raising floor 11a has stopped, so that the burden of applying the back-raising floor 11a to the back and buttocks of the body is the most. It can be stopped easily and reliably at an angle of about 30 degrees, which is reduced.
[0037]
When the back raising switch 11 is continuously operated when the back raising floor 11a is at an angle of about 30 degrees, the back raising floor 11a can be raised to an angle of 30 degrees or more.
[0038]
When the back raising floor 11a raised to an angle of 30 degrees or more is driven in the falling direction by operating the back lowering switch 24, when the back raising floor 11a is at an angle of approximately 30 degrees, the same as when raising the back. This is detected by the angle detection sensor 31. Therefore, even when the back-raised floor 11a falls down, the timer circuit 34 is activated when the back-raised floor 11a is at an angle of approximately 30 degrees to stop the movement of the back-raised floor 11a for 1-2 seconds. Therefore, if the operation of the back lowering switch 24 is released at that time, the back raising floor 11a can be stopped at an angle of approximately 30 degrees.
[0039]
When the back raising floor 11a falls down at approximately 30 degrees and the operation of the back lowering switch 24 is continued without being released, the back raising floor 11a is driven until it falls down substantially horizontally.
[0040]
As described above, when raising the back-raised floor 11a or falling down from a state where the back-raised floor 11a is raised at an angle of 30 degrees or more, when the angle of approximately 30 degrees is reached, the raising operation or the falling-down operation of the raised floor 11a is 1 to 1. Stop for 2 seconds. Therefore, the user can experience the stop, and by stopping the operation of raising or lowering the back at that time, the back raising floor portion 11a can be easily and reliably moved at an angle that does not exert a burden on the user's body. Can be stopped.
[0041]
Moreover, by performing a normal back-up operation or back-down operation, the back-raising floor 11a can be stopped at an angle of approximately 30 degrees, thereby improving operability.
[0042]
Also, when the first leg raising floor 11e is linked to the movement of the back raising floor 11a by the changeover switch 28, the back raising floor 11a can be similarly stopped at an angle of about 30 degrees. .
[0043]
In the above embodiment, the back raising floor 11a is stopped at an angle of approximately 30 degrees for a predetermined time both when the back raising floor 11a is driven in the upright direction and when the back raising floor 11a is driven in the falling direction. Only when driving in the upright direction, the vehicle may be stopped at an angle of approximately 30 degrees for a predetermined time. In this case, for example, it is possible to directly input the operation signal of the lowering switch 24 to the motor drive circuit 36 without passing through the gate circuit 35.
[0044]
【The invention's effect】
As described above, according to the present invention, when the angle of the movable floor reaches a predetermined angle, the movement of the movable floor is stopped for a fixed time regardless of the operation of the operation unit.
[0045]
Therefore, when the operation of the operation unit is released when the movement of the movable floor unit is stopped for a predetermined time, the movable floor unit can be set to the predetermined angle, so that the movable floor unit can be easily and reliably positioned at the predetermined angle. Can be.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a wake-up type bed apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram of a control device that controls the undulation of the movable floor.
[Explanation of symbols]
4 Bed frame 11 Floor plate 11a Back raising floor (movable floor)
20 Remote controller (operation unit)
32 ... Control device (control means)
31 ... Angle detection sensor (detection unit)
34: timer circuit 35: gate circuit

Claims (3)

A bed frame,
A floor plate provided on the bed frame and formed on a movable floor part that can be raised and lowered,
An up-and-down driving mechanism that drives up and down the movable floor portion of the floor plate;
An operating unit for operating the up / down driving mechanism to raise / lower the movable floor unit;
Control means for stopping the movement of the movable floor portion for a certain time regardless of the operation of the operation portion when the undulation angle of the movable floor portion becomes a predetermined angle by the operation of the operation portion,
A wake-up type bed device comprising: The control means includes: a detection unit that detects an undulation angle of the movable floor unit; and a timer circuit to which a detection signal is input when the detection unit detects that the movable floor unit has reached a predetermined angle. A gate circuit for stopping a drive signal output from the operation unit to the undulation drive mechanism by a signal from the timer circuit for a time set in the timer circuit;
The wake-up type bed apparatus according to claim 1, further comprising: 2. The wake-up type bed apparatus according to claim 1, wherein the angle of the movable floor section detected by the detection section is about 30 degrees.

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