JP3740743B2 - Lift control device for electric lift bed - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric lift table that can move a floor portion to a desired posture by a driving force, can store the desired posture, and can quickly move to the desired posture. About.
[0002]
[Prior art]
The electric elevating bed is configured so that the floor can be easily moved to a desired posture using the driving force of the driving device.
[0003]
By the way, in order to achieve the desired posture, for example, the floor is raised to a height at which a television or the like can be easily seen, and the back frame is swung up and down to an optimum angle in order to get the upper body up to a comfortable posture. Also, the leg frame is raised to raise the foot slightly. Each time such a change in the posture of the floor is performed by the patient or by the nurse, the driving devices are driven, but as the driving device approaches the desired posture during the driving operation, the driving device is changed. Since it is necessary to avoid overrun by intermittent driving, it is troublesome to move to a desired posture. In particular, when a large number of drive devices must be driven as described above, a large number of drive devices must be driven one by one, which makes the inconvenience even more remarkable. In this case, in order to return the floor, back frame, and leg frame to the original posture after being moved to the desired posture, it is necessary to drive and operate a large number of drive devices for them. It was a heavy burden.
[0004]
[Problems to be solved by the invention]
In view of the above-described situation, the present invention intends to solve the problem by providing an electric lift bed that can easily and quickly move a floor portion to a desired posture.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides an electric lift bed having a drive device for changing the posture of the floor and an operation unit for outputting a drive signal or a stop signal to the drive device. A detecting means for detecting the posture of the floor portion, a storing means for storing detection information from the detecting means, and a change operation of the floor portion to the posture stored in the storing means; A control means for driving or stopping the driving device, and the driving device swings the first driving device for raising and lowering the floor portion and the back frame constituting the floor portion. And a third drive device that operates to raise and lower a leg frame that constitutes the floor portion, and the detection means detects first elevation means for detecting the elevation position of the floor portion, and swings the back frame. A second detection means for detecting the position and a third detection means for detecting the raising and lowering position of the leg frame, wherein the storage means stores detection information from the three detection means, respectively. The control means is configured to drive or stop driving the three drive devices so that the posture of the floor, back frame, and leg frame is changed to the posture stored in the storage means. A lifting / lowering control device for a bed was constructed.
First, in order to change the posture of the floor portion to a desired posture, a driving device for the floor portion is driven. When the posture of the floor is changed to a desired posture, the posture of the floor is stored by the storage means. Therefore, when changing the posture of the floor to the desired posture from the next time, the driving device can be driven based on the stored information stored in the storage means, and the posture change to the desired posture can be performed without overrun. Can be done quickly in the state. In addition, even when the floor portion is returned from the desired posture to the original posture, that is, the initial posture where the floor portion can be used as a bed, if the initial posture is stored in the storage means, the driving is performed based on the stored information. The device can be driven to quickly move to the initial posture. Since the initial posture of the floor is merely to drive the driving device in the reverse direction so as to move to the end position, it may not be stored in the storage means as described above.
In addition, the drive device moves up and down the first drive device that raises and lowers the floor portion, the second drive device that swings the back frame that constitutes the floor portion, and the leg frame that constitutes the floor portion. A third driving device, wherein the detecting means detects first raising / lowering position of the floor, second detecting means for detecting swinging position of the back frame, and raising / lowering of the leg frame. Third detection means for detecting a position, wherein the storage means stores detection information from the three detection means, respectively, and the control means is in the attitude stored in the storage means. When the three drive devices are configured to be driven or stopped so as to change the posture of the floor, back frame, and leg frame, first the posture of the floor is changed to a desired posture. And the Floor for, back frame, driving operating the driving device of the leg frame. When the floor portion, the back frame, and the leg frame are changed to the desired posture, the posture of the floor portion is stored in the storage means. Therefore, when changing the floor portion to the desired posture from the next time, it is possible to drive the corresponding floor portion, back frame, leg frame drive device based on the stored information stored in the storage means, It is possible to quickly change the posture to the desired posture without overrun. In addition, when returning the floor portion from the desired posture to the original posture, that is, returning to the initial posture in which the floor portion can be used as a bed, if the initial posture is stored in the storage means, the corresponding information is based on the stored information. It is possible to quickly move to the initial posture by driving the floor, back frame, and leg frame drive devices. Since the initial posture of the floor portion is to simply drive the drive devices in the opposite directions so as to move to the end positions of the floor portion, the back frame, and the leg frame, the storage means as described above. You may not memorize.
[0007]
The operation unit is configured by a remote controller for outputting a drive signal or a drive stop signal to the drive unit to the control means, and the third controller for driving each of the three drive devices to the remote controller. A first push button, three second push buttons for storing each of the three storage patterns in the storage means, and a storage start button for starting the storage of the storage patterns. A cover body covering the push button and the storage start button is provided on the case of the remote controller so as to be freely opened and closed. By storing the desired posture of the floor in three memory patterns, simply pressing any second push button of the three second push buttons is based on the memory pattern stored in the second push button. At least one of the floor, the back frame, and the leg frame is operated to change the posture. And since the 1st push button and the memory start button are covered with the cover body, the memory pattern memorize | stored by pushing a memory start button accidentally is not changed, and the 1st push button is mistakenly made. The floor, back frame, and leg frame are not accidentally driven by pressing. In addition to storing the desired posture of the floor portion as a memory pattern, in order to return the floor portion to an initial posture that can be used as a bed, the posture is such that the floor portion is in the lowest position and the floor surface is flat. By storing it, the posture can be quickly changed to the initial posture.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show a bed. This bed is formed by connecting the front end portions and the rear end portions of a pair of left and right first frames 1, 1 constituting the lower portion with front and rear second frames 2, 2. The boss is connected to and placed on the first frame 1, 1 and the floor 3 is fixed to the front and rear ends of the third frames 4, 4 fixed to the first frame 1, 1. A caster C is attached to each portion 4a to constitute a movable bed.
[0009]
The floor portion 3 is composed of a back frame 5 positioned on the front side of the bed, a waist frame 6 pivotally connected to the rear side thereof, and a leg frame 7 pivotally connected to the rear side thereof. ing. The leg frame 7 is composed of a knee frame 8 and a leg frame 9 pivotally connected to the right side thereof.
[0010]
The floor 3 is placed and supported on the first frames 1 and 1 as described above, and the first frames 1 and 1 are connected to the front and rear of the floor 3 via a pair of left and right brackets 10 and 10, respectively. The first arms 11A and 11A attached to the third frames 4 and 4 are supported by support cylinders 12 and 12, respectively. Each of the first arms 11A is supported by a support member 13 fixed to the third frame 4 with a roller 14 so as to be swingable and allowed to move in the front-rear direction. A pair of front and rear second arms 11B, 11B, to which are fixed, are connected by a connecting member 15, and a motor of a first electric motor 17 serving as a first driving device is connected to a support cylinder 12 positioned on the front side via a bracket 16. The shaft 17A is connected, and when the first electric motor 17 is driven, the connecting member 15 is moved in the front-rear direction. Accordingly, the first arms 11A, 11A and the second arms 11B, 11B are moved. The floor 3 is moved up and down by integrally swinging upward around the rotation axis of the roller 14.
[0011]
A motor shaft 18A of a second electric motor 18 as a second drive device is connected to an arm 21 fixed to a support pipe 20B installed on a pair of left and right brackets 20A and 20A attached to the lower surface of the back frame 5. The back frame 5 is swung around the horizontal axis X by driving the second electric motor 18. That is, the back frame 5 can be swung by the second electric motor 18 from the posture in which the upper surface of the back frame 5 is parallel to the horizontal as shown by the solid line in FIG. 1 to the maximum inclined posture shown by the two-dot chain line in the drawing. I have to.
[0012]
A motor shaft 19A of a third electric motor 19 serving as a third driving device is attached to an arm 22C fixed to a support pipe 22B installed on a pair of left and right brackets 22A and 22A fixed to the lower surface of the knee frame 8 of the leg frame 7. The knee portion 8 is pivoted around the horizontal axis Y by driving the third electric motor 19 and the leg portion pivotally connected to the knee portion frame 8 is operated. The frame 9 can be moved to the upper position, and the knee frame 8 and the leg frame 9 can be raised and changed to the posture shown by the two-dot chain line in FIG. As a result, the legs are placed along the upper surfaces of the knee frame 8 and the leg frame 9 so that a comfortable posture can be obtained. Reference numeral 23 shown in FIG. 1 is a support member for supporting the leg frame 9 in an upper position. One end of the support member 23 is pivotally connected to the rear end of the leg frame 9, and the other end is The plate-like body 24 fixed on the first frame 1 is locked in a locking groove 24A located in front of a plurality of locking grooves 24A formed in the longitudinal direction. By changing the support member 23 to have a different length so that the end of the support member 23 can be locked to the locking groove 24A excluding the locking groove 24A located in the front, the knee frame 8 It is possible to change the posture of the leg frame 9 when it is swung.
[0013]
As shown in FIG. 3, each of the three electric motors 17, 18, and 19 is provided with a potentiometer 25 that detects the positions of the motor shafts 17A, 18A, and 19A, and detection information from these potentiometers 25. Based on the above, the posture of the floor 3 is detected. The potentiometer 25 of the electric motor 17 is referred to as first detection means for detecting the raising / lowering position of the floor 3, and the potentiometer 25 of the electric motor 18 is referred to as second detection means for detecting the swing position of the back frame 5, The potentiometer 25 of the electric motor 19 is referred to as third detection means for detecting the lift position of the leg frame 7. The detection means includes a rotary disk with a slit attached to the motor shafts 17A, 18A, and 19A of the electric motors 17, 18, and 19 in an integrally rotated state, and an issue diode that irradiates the disk with light. The optical rotary encoder that detects the number of times of light shielding per unit time that is shielded by the rotation of the rotating disk may be used, and the specific configuration as the detecting means is not limited to these. In addition to providing the electric motors 17, 18, and 19 themselves with detecting means, the posture of the floor 3, that is, the raising / lowering position of the floor 3, the swinging position of the back frame 5, and the raising / lowering position of the leg frame 7 are directly detected. It may be configured.
[0014]
While the detection information from the potentiometers 25, 25, 25 is input, the posture of the floor 3 is changed to the posture stored in the storage unit 26 as storage means capable of storing three types of detection information therein. Thus, a control device 27 is shown as a control means for driving or stopping the electric motors 17, 18, 19. A remote controller 28 as an operation unit that outputs a drive signal or a stop signal to the electric motors 17, 18, 19 is connected to the control device 27. Although the wired remote controller 28 is used as the operation unit, a wireless remote controller may be used, and the specific configuration as the operation unit is not limited to these. The storage unit 26 may be configured to store three types of detection information, and may be configured to store one type or four or more types of detection information. In the figure, reference numeral 36 denotes a power cord.
[0015]
The remote controller 28 includes three first push buttons 29, 30, and 31 for driving the three electric motors 17, 18, and 19 to rotate forward and backward, respectively, and three storage patterns in the storage unit 26. Three second push buttons 32, 33, and 34 for storing and a storage start button 35 for starting storage of the storage pattern are provided. Therefore, by pressing the first push buttons 29, 30, and 31, the posture of the floor portion 3, that is, the raising / lowering position of the floor portion 3, the swinging position of the back frame 5, and the raising / lowering position of the leg frame 7 are brought into a desired posture. After the movement, the storage start button 35 is pressed and then, for example, the second push button 32 is pressed, so that the storage unit 26 corresponding to the second push button 32 is moved to the lift position of the floor 3, the swing position of the back frame 5, The lift position of the leg frame 7 is stored. Then, after being stored in the storage unit 26, by pressing the second push button 32, the corresponding electric motors 17, 18, 19 are continuously driven to the stored position at the same time. The electric motors 17, 18, and 19 may be driven one by one. In the same manner as described above, the storage unit 26 corresponding to the second push buttons 33 and 34 stores the lift position of the floor 3, the swing position of the back frame 5, and the lift position of the leg frame 7, which are different from the stored positions. In this case, the floor 3 can be changed to three desired postures simply by pressing the second push buttons 32, 33, 34. Even when the floor 3 is returned from the desired posture to the original posture, that is, when the floor 3 is returned to the initial posture that can be used as a bed, if the initial posture is stored in the storage unit 26, the stored information is based on the stored information. The electric motors 17, 18 and 19 of the floor 3, the back frame 5 and the leg frame 7 may be driven to be moved quickly to the initial posture.
[0016]
In FIG. 4, a cover body 37 for covering the first push buttons 29, 30, 31 and the storage start button 35 is attached to the case 28 </ b> A of the remote controller 28 so as to be able to open and close. Therefore, as shown in the figure, since the buttons 29, 30, 31, and 35 cannot be pressed unless the cover body 37 is opened, the stored memory pattern is changed by pressing the storage start button 35 by mistake. There is no possibility that the floor 3, the back frame 5, and the leg frame 7 are unexpectedly driven by pressing the first push buttons 29, 30, and 31 by mistake.
[0017]
【The invention's effect】
According to the first aspect, since the desired posture of the floor portion can be stored, if the desired posture of the floor portion is stored, the posture change to the desired posture of the floor portion can be performed by continuous driving of the driving device and It can be done quickly without overruns. Moreover, when driving the dynamic system is in three, as compared the conventional manner these three drive device to which the driving operation, respectively, the desired orientation only easily and quickly floor elicit storage information stored It is easy to use for nurses and patients.
[0018]
According to claim 2 , since the first push button and the storage start button are covered with the cover body, the cover body can be opened and stored only when it is desired to start storing the memory pattern. Not only is the stored information unintentionally changed, but by accidentally pressing the first push button, the floor, back frame, and leg frame are not accidentally driven, reducing the occurrence of erroneous operations. can do.
[Brief description of the drawings]
FIG. 1 is a partially omitted side view of an electric lift bed. FIG. 2 is a partially omitted plan view of an electric lift bed. FIG. 3 is a control block diagram. FIG. 4 is a plan view showing another embodiment of a remote controller. Explanation of symbols]
1 First frame 2 Second frame 3 Floor 4 Third frame 5 Back frame 6 Lumbar frame 7 Leg frame 8 Knee frame 9 Leg frame
10 Bracket
11A 1st arm
11B 2nd arm
12 Support tube
13 Support member
14 Laura
15 Connecting member
16 Bracket
17 1st electric motor (drive device)
18 Second electric motor (drive device)
19 Third electric motor (drive device)
17A, 18A, 19A motor shaft
20A bracket
20B Support pipe
21 arm
22A bracket
22B Support pipe
22C arm
23 Support member
24 Plate
24A Locking groove
25 Potentiometer (detection means)
26 Storage unit (storage means)
27 Control device (control means)
28 Remote controller (operation unit)
29,30,31 1st push button
32,33,34 Second push button
35 Memory start button
36 Power cord
37 Cover body C Caster
X, Y horizontal axis

Claims (2)

In the electric lift bed provided with a drive device for changing the posture of the floor and an operation unit for outputting a drive signal or a stop signal to the drive device, a detecting means for detecting the posture of the floor And a storage means for storing detection information from the detection means, and a drive operation or a drive stop operation of the drive device to change the floor portion to the posture stored in the storage means. There is provided a control means, wherein the drive device includes a first drive device that moves the floor portion up and down, a second drive device that swings and operates a back frame that constitutes the floor portion, and a leg frame that constitutes the floor portion. A third driving device that moves up and down, wherein the detecting means detects first raising and lowering position of the floor, second detecting means that detects a swing position of the back frame, and A third detecting means for detecting the raising / lowering position of the frame, wherein the storage means stores detection information from the three detecting means, and the control means is stored in the storage means. A lift control device for an electric lift bed that is configured to drive or stop driving the three drive devices so that the posture of the floor, back frame, and leg frame is changed in posture . The operation unit is configured by a remote controller for outputting a drive signal or a drive stop signal to the drive unit to the control means, and the third controller for driving each of the three drive devices to the remote controller. A first push button, three second push buttons for storing each of the three storage patterns in the storage means, and a storage start button for starting the storage of the storage patterns. pushbutton storage start button and an electric elevating bed lifting control device of the cover member remote controller openably formed by providing claim 1, wherein in case covering the.

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