JP2005087367A - Drive control device for electric gatch bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a vertical operation without discomfort when a floor part is vertically moved based on the preset operation pattern from an attitude deviated from a preset operation pattern in a Gatch bed. <P>SOLUTION: This Gatch bed is so constituted that, when the bed floor part 1 is vertically moved from the attitude deviated from a reference set attitude based on the preset operation pattern, a control part 7 performs first and second correcting operation controls in the vertical movement direction based on a command to return the floor part 1 to the reference set attitude, and then performs the drive control based on the set operation control. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention belongs to the technical field of a drive control device for an electric gatch bed that can raise the back and knees.

  Nowadays, electric gatch beds that can be raised and lowered by the electric motor are used to raise and lower the back and knees (raising and lowering). It is frequently used not only in hospitals but also in the field of nursing care because it is easy to operate and because it is easy for people who cannot move away from bedding to perform daily activities and nursing operations.

And in such a gatch bed, in order to improve the operability, by selecting the switch provided on the remote control tool, adjustment of the raising and lowering posture of both back knees, adjustment of the raising and lowering posture of the back, and raising and lowering posture of the knee There are some that can be adjusted and the height of the bed can be adjusted, and in such cases, the raising and lowering operation of both back knees should be performed through an ideal raising and lowering posture set in advance. ing.
JP-A-9-308547 JP 2001-37820 A

  However, the Gatch Bed not only raises and lowers both sides of the back knee, but sometimes the user raises and lowers only the back and knees if necessary. In this case, the bed posture may deviate from the ideal raising / lowering posture set in advance in order to raise and lower the both parts of the back knee. When the adjustment operation is performed, there is a problem that the user feels uncomfortable through an unnatural raising / lowering posture, and there is a problem to be solved by the present invention.

The present invention has been created for the purpose of solving these problems in view of the above circumstances, and the invention of claim 1 corresponds to the back portion and the knee portion constituting the bed floor portion. In the electric gatch bed configured to move up and down based on the control drive by the control unit of the back and knee actuators, the control unit operates the back and knees with the bed floor set in advance. Setting operation means for moving up and down through a posture change based on a pattern is provided, and when the bed floor portion moves up and down from a posture deviating from the predetermined operation pattern, the bed floor portion is operated in the process of up and down operation. Correction control means for correcting the posture of the pattern is provided, and in this way, the bed floor portion is moved up and down in the process of moving up and down. Attributed, it is possible to carry out the move up and down with no discomfort.
According to a second aspect of the present invention, in the first aspect, the correction operation based on the correction control means is set so as not to operate in the direction opposite to the operation direction of the back portion in the operation pattern. Thus, the operation of the bed floor portion can be performed naturally and without any sense of incongruity.
According to a third aspect of the present invention, in the first or second aspect, the correction control means is configured to preferentially drive either one of the actuator for the back portion and the actuator for the knee portion. As a result, the correction operation can be performed quickly and smoothly.
According to a fourth aspect of the present invention, in any one of the first to third aspects, the correction control means is configured to be made based on an operation pattern map divided based on a preset operation pattern. .
According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the correction control means is configured so that each of the actuators for the back portion and the knee portion is based on a drive control method set for each posture region divided in the operation pattern map. In this way, the correction operation can be performed quickly and smoothly, and the operability can be improved.

By setting it as invention of Claim 1, an up-and-down operation | movement which does not give a user a discomfort can be performed.
By setting it as invention of Claim 2, the operation | movement of a bed floor part can perform the operation | movement which is natural and does not feel uncomfortable.
According to the invention of claim 3, the bed floor portion correction operation can be performed quickly and smoothly.
According to the invention of claim 5, the correction operation becomes quick and smooth, and the operability is excellent.

  Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a floor portion of an electric gatch bed, and the floor portion 1 is divided into a back portion 2, a waist portion 3, a knee portion 4 and a leg portion 5, and a known electric drive mechanism (not shown). Thus, raising / lowering the back 2 with respect to the waist 3 (back raising, back-lowering), raising / lowering the knee 4 with respect to the waist 3 (knee raising, knee-lowering), and raising / lowering of the entire floor 1 can be performed. Reference numeral 6 denotes a remote control (remote control) operating tool. The remote control operating tool 6 includes switches for both the back and knees 6a, 6b for raising and lowering both the back part 2 and the knee part 4. Back switches 6c and 6d for raising or lowering only the back 2, knee switches 6e and 6f for raising or lowering only the knee 4, and raising or lowering the entire floor 1 Floor switches 6g and 6h are provided.

On the other hand, reference numeral 7 denotes a control unit (comprising a CPU) to which the remote control tool 6 is connected (either wireless or wired connection). The control unit 7 includes the switches 6 a of the remote control tool 6. , 6b, 6c, 6d, 6e, 6f, 6g, 6h, when the operation commands (raising command, lowering command) are input, the driving commands corresponding to the commands are sent to the back actuator 8, the knee actuator 9, Each output is set to the floor actuator 10. Incidentally, an electric motor is generally employed for each of the actuators 8, 9, and 10.
Further, the control unit 7 includes a back angle sensor 11 for detecting the posture of the back portion 2 of the floor portion 1, that is, the back angle (α) that is the angle of the back portion 2 with respect to the waist portion 3, and the posture of the knee portion 4. In other words, a knee angle sensor 12 for detecting a knee angle (β) that is an angle of the knee 2 with respect to the waist 3 is connected.
Here, as the posture detection means of the back part 2 and the knee part 4, it is possible to use a rotation detection sensor provided for the back part and the knee part actuators 8 and 9 (electric motors) in addition to the angle sensor. It is.

  Then, as shown in the flowchart of FIG. 3, the control unit 7 controls the operation of both the back and knees when the switches for both the back and knees 6a, 6b are operated, and the switches for the back 6c, 6d When operated, the back operation control is performed, when the knee switches 6e, 6f are operated, the knee operation control is performed, and when the floor switches 6g, 6h are operated, the floor operation is performed. It is set to control.

In the present embodiment, the back operation control, the knee operation control, and the floor operation control are controlled based on a general-purpose control procedure. Will be described.
When the switch operation of the back knee both-side switches 6a and 6b is performed and the operation shifts to the back-knee both-side operation control, the control unit 7 raises the operation pattern in which the back 2 and the knee 4 are preset (FIG. 1 ( X)), and setting operation control for appropriately controlling the driving of these actuators 8 and 9 for the back and knees so as to perform the operation based on the lowering operation pattern (in the setting operation means of the present invention). The control unit 7 determines that the reference setting posture of the floor 1 based on the raising and lowering operation patterns is based on the back angle (α) and the knee angle (β). It is remembered.

Here, the raising operation pattern will be described based on the drive control for the back and knee actuators 8 and 9 of the control unit 7. 5 (X) and FIG. 6 (X), the raising operation pattern (ideal straight line) indicated by a solid line is a posture in which the floor portion 1 is flat (sleeping posture: point A, the back angle α ₁ , the knee angle β ₀ ), only the knee actuator 9 is driven up and driven until the knee angle β becomes β ₂ (point B, knee angle β ₂ , back angle α ₁ ), and then for the back, knee The both actuators 8 and 9 for the head are driven up and raised until the back angle α is α ₂ and the knee angle β is β ₃ (point C), while the knee actuator 9 is stopped driving, while the back actuator The back drive 2 is raised (raised) by continuing the raising drive of 8. Then, as the back angle α becomes α ₃ (knee angle β is β ₃ ) (point D), the back actuator 8 continues to be lifted while the knee actuator 9 is driven down to drive the back The angle α is raised to α ₄ and the knee angle β is lowered to β ₁ (point E) to stop driving the knee actuator 9 while driving the back actuator 8 up to drive the back angle α. Is increased to α ₆ (knee angle β is β ₁ ) (point F), the back actuator 8 is driven up and the knee actuator 9 is driven down to lower the knee angle β to be β _0. Then, the back angle α is raised to α ₆ (point G), and then the knee actuator 9 is stopped driving while the back actuator 8 is raised and driven to increase the back angle α to the maximum raising angle (for example, 80). Every time In this case, it is set to stop (point H) after α ₇ ).
On the other hand, the lowering operation pattern (ideal straight line) shown by the solid line in FIGS. 5 (Y) and 6 (Y) is composed of an operation process opposite to the raising operation pattern, and the detailed explanation is as follows. Although omitted, the operation from the point H to the point O (A) via the points I, J, K, L, M, and N, that is, the knee 4 moves up and down while the back 2 It is set so as to perform the operation of lowering.

  Then, when there is an operation on either of the switches for both the back and knees 6a and 6b and the control unit 7 controls the back and knees, the control unit 7 is as shown in the flowchart of FIG. First, based on the detection signals from the back and knee angle sensors 11 and 12, whether or not the current posture of the floor portion 1 (the posture (position) between the back portion 2 and the knee portion 4) is the reference setting posture. If it is determined that the posture is the reference setting posture (the posture on the operation pattern), the control unit 7 executes the setting operation control, which is drive control based on the operation pattern, for the back portion and the knee portion. It is set to output a corresponding drive command to the actuators 8 and 9.

On the other hand, when it is determined that the current posture of the floor portion 1 is a posture deviating from the reference setting posture (an posture other than the reference setting posture), the control unit 7 performs the correction operation control in which the present invention is implemented ( The actuators 8 and 9 for the back and knees are driven and controlled to return the current posture of the floor portion 1 to the reference setting posture (mounting on the working pattern). Is set.
The correction operation control of the present embodiment is set based on the operation pattern map stored in the control unit 7, and the operation pattern map is a change region of the back angle α and the knee angle β. About (the attitude | position area | region of the floor part 1), it is comprised by what was divided | segmented into the some attitude | position area | region on the basis of the bending point of each said raising and lowering operation pattern.
The operating pattern map for raising and lowering is assigned as I → II →... VII in the horizontal direction (back angle α) from left to right and in the vertical direction (knee angle β). Is addressed from the lower side to the upper side, i → ii → iii → iv →..., So that each posture region has a unique address, for example, (I-i), (VI -V)...
And the control part 7 is set so that the attitude | position of the floor part 1 may be correct | amended based on the attitude | position area | region of which address the current attitude | position of the floor part 1 is located. The operation direction of the floor portion 1 (back portion 2) is set to be the same as the direction of the operated switches for both the back and knees 6a and 6b, whereby the operation of the floor portion 1 by the correction operation is used. It is set so that the correction can be performed with a natural operation without giving a strange feeling to the person.

In the correction operation control, the drive speed of one of the back and knee actuators 8 and 9 is reduced to 0 or decelerated, so that the other drive speed is corrected to the reference setting posture based on the operation with priority. Thus, the correction operation is set to be natural and smooth.
Furthermore, in the second correction operation control to be described later, a drive control system that is optimally operated to correct the reference setting posture for each posture region is set in advance in each of the raising and lowering pattern maps, The control unit 7 determines the posture area to which the current posture belongs, and outputs a drive command based on the drive control method of the posture region to which the current posture belongs to the actuators 8 and 9 for the back and knees. Thus, the floor 1 is set to be corrected to the reference setting posture, so that the correction can be made smoothly and promptly.

Next, an example of the procedure of the correction operation control of the present embodiment will be described based on a graph diagram illustrating the operation pattern of the bed floor portion 1 shown in FIGS. 5 and 6 and a flowchart diagram shown in FIGS. .
When the current posture of the floor portion 1 deviates from the reference setting posture and shifts to the correction operation control, the control portion 7 determines that the posture region of the current posture of the floor portion 1 is the back actuator 8 of the operation pattern map. It is determined whether or not it is an interlocking posture region (an interlocking operation region, which is a hatched portion in FIG. 5) in which both of the knee actuators 9 are driven. Then, when it is determined that the current posture is not the interlocking posture region, the process proceeds to the second correction operation control described later, and when it is determined that the current posture is the interlocking posture region, the first correction operation control is set. Has been.

  That is, when shifting to the first correction operation control, the control unit 7 determines whether the operation switches 6a and 6b for both the back and knees are for raising 6a or for lowering 1b (whether it is a raising command or a lowering command), When it is determined that the command is a raising command, it is determined whether the position of the knee 4 in the current posture is a raising action posture region (raising action region) or a lowering action posture region (lowering action region). Then, when it is determined that it is the raising operation region, the raising operation region is the (iii-I) region and (iii-II) region (upper left to lower right of FIG. 5 (X)) of the raising operation pattern map. If the current posture is located in any of these posture areas and it is determined that it is not the reference setting posture, is the knee angle (β) of the current posture higher or lower than the reference setting posture? If it is determined that the position is above, a back raising operation command is output to the back actuator 8 in preference to the knee actuator 9 so that only the back 2 is raised until the reference setting posture is reached. However, if it is determined that the position is lower, a command for raising the knee is given to the knee actuator 9 in preference to the back actuator 8 so that only the knee 4 is raised until the reference setting posture is reached. Set to output It is.

  On the other hand, when the control unit 7 determines that it is the lowering operation region, the lowering operation region is the (iii-IV) region, (ii-IV) region, and (i-VI) of the operation pattern map for raising. Region (the hatched portion from the upper right to the lower left in FIG. 5 (X)), and when it is determined that the position of the knee 4 is located in any of these posture regions and is not the reference setting posture, It is determined whether the knee angle (β) is above or below the reference setting posture. If it is determined that the knee angle (β) is above, the back actuator 8 is operated so that only the knee 4 is lowered until reaching the reference setting posture. When the knee lowering operation command is output to the knee actuator 9 with priority, and it is determined that the knee is lower, the knee actuator 9 is operated so that only the back 2 is raised until the reference setting posture is reached. Priority is given to the back actuator 8 It is set so as to output the back-up operation command Te. In either case, when it is determined that the current posture has become the reference setting posture, the second correction operation control is set.

  On the other hand, when it is determined that the command from the back knee operation switches 6a and 6b is a lowering command, it is determined whether the position of the knee 4 in the current posture is the raising operation region or the lowering operation region. Then, when it is determined that it is the raising operation region, the raising operation region is the (i-VI) region, (ii-VI) region, (iv-IV) region, and (v-IV) of the lowering operation pattern map. ) Region (hatched portion in FIG. 5 (Y)), when it is determined that the position of the knee 4 is located in any of these posture regions and is not the reference setting posture, the knee angle (β ) Is higher or lower than the reference setting posture, and if it is determined that it is above, the back portion has priority over the knee actuator 9 so that only the back portion 2 is lowered until the reference setting posture is reached. When the back lowering operation command is output to the actuator 8 and it is determined that the lower part is lower, the knee part is prioritized over the back actuator 8 so that only the knee part 4 is raised until the reference setting posture is reached. To raise the knee against actuator 9 It is set so as to output a command.

On the other hand, when the control unit 7 determines that it is the lowering operation region, the lowering operation region is the (v-II) region, (iv-II) region, and (iii-II) region of the lowering operation pattern map. (The hatched portion in FIG. 5 (Y)), when it is determined that the position of the knee 4 is located in any of these posture regions and is not the reference setting posture, the knee angle (β) of the current posture is It is determined whether it is above or below the reference setting posture, and if it is determined that it is above, the knee part lowering is performed with respect to the knee actuator 9 so that only the knee part 4 is lowered until the reference setting posture is reached. When the operation command is output and it is determined that it is down, the back lowering operation is performed with respect to the back actuator 8 in preference to the knee actuator 9 so that only the back 2 is lowered until the reference setting posture is reached. Set to output commands
In any case, when it is determined that the current posture has become the reference setting posture, the second correction operation control is set.

Next, the current posture of the floor portion 1 is located in a posture region in which either one of the back actuator 8 and the knee actuator 9 is driven, and the current posture of the floor portion 1 is an interlocked posture. A case will be described where it is determined that the region is not an area, or when the control unit 7 has shifted to the second correction operation control when the first correction operation control returns to the reference setting posture.
In the second correction control, control is performed based on the raising and lowering operation pattern maps shown in FIG. 6. In this case, the raising and lowering action pattern maps are set for each posture region. The drive control method is preset, and the drive control method is indicated by arrows. Here, as the drive control method of the present embodiment, the upward arrow indicates that the back actuator 8 is stopped and the knee lift operation command is issued so that the knee actuator 9 is driven up in preference to the back actuator 8. The right-pointing arrow indicates a drive control system that outputs a back raising operation command to stop driving the knee actuator 9 and drive the back actuator 8 in preference to the knee actuator 9. The left-pointing arrow indicates a drive control system that stops driving the knee actuator 9 and outputs a back lowering operation command to drive the back actuator 8 to be lowered in preference to the knee actuator 9. Thus, in each of these posture regions, the back portion 2 is not operated against the command from the back and knee switches 6a and 6b, and any one of the actuators 8 and 9 for the back portion and the knee portion is used. By setting one drive speed to 0, control is performed such that priority is given to the other drive speed.

  Further, the arrow pointing to the upper right indicates a speed ratio lowering command for reducing the speed ratio of the back actuator 2 by reducing the speed of the knee actuator 9 at each of the raising drive speeds of the back and knee actuators 8 and 9. (Priority is given to the back actuator 8) or the speed of the knee actuator 9 is increased to output a speed ratio increase command (priority to the knee actuator 9) to increase the speed ratio with respect to the back actuator 2. The drive control system is shown, and the arrow pointing downward to the right indicates the speed relative to the back actuator 2 by reducing the speed of the knee actuator 9 in the up drive speed of the back actuator 8 and the down drive speed of each knee actuator 9. Speed ratio lowering command (priority is given to the back actuator 8) or the speed of the knee actuator 9 Hayashi and shows a driving control method for outputting a speed ratio increasing instruction speed ratio back actuator 2 is increased (prioritize knee actuator 9). Furthermore, the left upward arrow indicates that the speed of the knee actuator 9 is reduced between the lower drive speed of the back actuator 8 and the up drive speed of the knee actuator 9, and the speed ratio with respect to the back actuator 2 decreases. Speed ratio decrease command (prior to the back actuator 8) or speed ratio increase command to increase the speed ratio for the back actuator 2 by increasing the speed of the knee actuator 9 (prior to the knee actuator 9) ) Is output, and the arrow pointing downward to the left indicates that the speed of the knee actuator 9 is reduced at each of the lower drive speeds of the back and knee actuators 8 and 9, and the back actuator 2 Speed ratio lowering command (priority is given to the back actuator 8) or the speed of the knee actuator 9 And accelerated shows a driving control method for outputting a speed ratio increasing instruction speed ratio back actuator 2 is increased (prioritize knee actuator 9). In this manner, in the posture region indicated by the tilted arrow, the operation of the back part 2 against the command from the back and knee both-side switches 6a and 6b is not performed, and the actuators 8 and 9 for the back part and the knee part are not operated. It is set in an area (speed ratio correction area) in which control for correcting the speed ratio is performed by giving priority to one of the drive speeds.

  Then, when shifting to the second correction operation control, the control unit 7 determines whether or not the back / knee switch 6a or 6b is in the ON state, and if it is in the OFF state, the control unit 7 returns to the initial setting state. If it is determined that the knee 4 is in the ON state, it is determined whether the position of the knee 4 is in the raising action posture region (raising action region) or the lowering action posture region (lowering action region). Incidentally, the raising operation area is an area surrounded by a broken line in FIGS. 6 (X) and 6 (Y), and when the control unit 7 determines that the current posture is the raising operation area, It is determined whether the drive control method of the posture area corresponding to the posture is the speed ratio correction region (the region where the arrow is a tilted posture), and is the speed ratio correction region, and the current posture becomes the reference setting posture. If it is determined that the knee angle (β) of the current posture is higher or lower than the reference setting posture, and if it is determined that the knee angle (β) is higher, The speed ratio lowering command is output and the driving speed of the knee actuator 9 is reduced (priority is given to the driving of the back actuator 8). On the other hand, if it is determined that the knee angle (β) of the current posture is below the reference setting posture, a speed ratio increase command for the corresponding posture region drive control method is output, and the knee actuator 9 is set so as to increase the driving speed 9 (priority is given to the driving of the knee actuator 9). On the other hand, if it is determined that the drive control method corresponding to the posture region of the current posture is not the speed ratio correction region (the region where the arrow is a tilted posture) and is not the reference setting posture, the drive corresponding to the posture region It is set to output a command, for example, a back raising operation command, a knee raising operation command, etc. In this way, correction operation control corresponding to the current posture is sequentially performed to correct the current posture to the set reference posture. Is set to

On the other hand, when it is determined that the position of the knee 4 in the current posture is the lowering operation region, the control unit 7 determines that the drive control method corresponding to the posture region of the current posture is the speed ratio correction region (the arrow indicates the inclined posture). If it is determined that the current posture is not the reference setting posture, the knee angle (β) of the current posture is the reference setting. If it is determined that it is above or below the posture, and if it is determined to be above, a speed ratio increase command is output from the drive control method of the corresponding posture region, and the drive speed of the knee actuator 9 is increased. (Priority is given to driving of the knee actuator 9). In contrast, if it is determined that the knee angle (β) of the current posture is below the reference setting posture, a speed ratio reduction command is output from the corresponding posture region drive control method, and The driving speed of the actuator 9 is set to be lowered (priority is given to the driving of the back actuator 8). On the other hand, if the drive control method corresponding to the posture region of the current posture is not the speed ratio correction region (the region where the arrow is a tilted posture) and it is determined that the current posture is not the reference setting posture, It is set to output a back raising operation command or back lowering operation command, which is a corresponding drive command, and in this way, correction operation control corresponding to the current posture is sequentially performed to correct the current posture to the set reference posture. It is set to be.
In this way, when the correction corresponding to the posture region where the current posture is located is repeated and the bed floor portion 1 changes from the current posture to the reference setting posture, the control unit 7 shifts to the setting operation control and changes to the operation pattern. It is set so that the drive control of the actuators 8 and 9 for the back portion and the knee portion based on each other is performed.

  In the embodiment of the present invention configured as described above, when any one of the switches for both the back and knees 6a and 6b is turned on, the control unit 7 controls the actuators 8 and 9 for the back and knees. The set operation control, which is a predetermined drive control, is performed, and thereby the bed floor 1 is operated based on a predetermined operation pattern. In this case, the switches for both the back and knees 6a and 6b are used. If the current posture of the bed floor portion 1 is not a reference setting posture which is a posture on a preset operation pattern when the operation from is performed, the posture of the floor portion 1 is set as a reference setting posture in the process of moving up and down. The operation pattern is corrected and returned to the operation pattern, and thereafter, the operation based on the operation pattern is performed. As a result, the floor portion 1 moves up and down with the position shifted, and there is no problem that the operation becomes unnatural and uncomfortable to the user, and the floor portion 1 is corrected in a natural operating state. can do.

  In addition, in the embodiment of the present invention, the operation of the floor portion 1 by the correction operation control is performed in the direction based on the operation of the back knee both-side switches 6a and 6b, that is, when the back portion 2 is moved up. It is a correction operation based on moving 2 upward, so that the back 2 does not move down and does not go against the will of the operator (user), and the movement is natural and uncomfortable. It can be a good product.

  Further, in this case, both the first and second correction operation controls are performed based on the operation pattern map. However, in either control, priority is given to one of the back and knee actuators 8 and 9. Therefore, the influence on the user's body can be reduced, and the movement from the current posture onto the operation pattern can be promptly performed.

  In addition, this is configured so as to undergo the first and second correction operation control, and by the first correction operation control in advance, both of the actuators 8 and 9 for the back portion and the knee portion are presently positioned. Corrections are made when in the driving posture area, followed by corrections when in other parts, so that the correction operation is quick and smooth, and has excellent operability. it can.

FIGS. 1 (X) and 1 (Y) are a schematic diagram for explaining the raised / lowered state of the bed floor, and a front view of the remote control operation tool. It is a block diagram explaining the control state in a control part. It is a flowchart figure explaining the control procedure in a control part. It is a flowchart figure explaining the control procedure of back knee both part operation control. FIGS. 5X and 5Y are an operation pattern map for raising and an operation pattern map for lowering, respectively, in the first correction operation control. 6 (X) and 6 (Y) are an operation pattern map for raising and an operation pattern map for lowering in the second correction operation control, respectively. It is a flowchart figure explaining the control procedure of correction | amendment action control. It is a flowchart figure explaining the control procedure of the 2nd correction operation control.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor part 2 Back part 4 Knee part 6 Remote control tool 7 Control part 8 Actuator for back part 9 Actuator for knee part 10 Angle sensor for back part 11 Angle sensor for knee part

Claims (5)

  In the electric gatch bed configured to move up and down based on the control drive by the control unit of the corresponding back portion and knee portion actuator, the back portion and the knee portion constituting the bed floor portion, Setting operation means for moving the bed floor up and down through a posture change based on a preset operation pattern of the back and knees is provided, and the bed floor is moved up and down from a posture deviating from the predetermined operation pattern. In this case, there is provided a drive control device for an electric gatch bed provided with a correction control means for correcting the bed floor to the posture of the operation pattern in the process of vertical operation.   2. The drive control device for an electric gatch bed according to claim 1, wherein the correction operation based on the correction control means is set so as not to operate in the direction opposite to the operation direction of the back portion in the operation pattern.   3. The drive control device for an electric gait bed according to claim 1 or 2, wherein the correction control means is configured to preferentially drive either one of the actuator for the back part and the actuator for the knee part.   4. The drive control device for an electric gatch bed according to any one of claims 1 to 3, wherein the correction control means is configured to be made based on an operation pattern map divided based on a preset operation pattern.   5. The correction control means according to claim 4, wherein the correction control means is configured to drive and control each of the back and knee actuators based on a drive control method set for each posture region divided in the operation pattern map. The drive control device of the electric gacha bed.

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