KR20110093053A - The multi-functional electric chair - Google Patents

Abstract

PURPOSE: A multifunctional electronic chair is provided to control the angle of a chair and to help a user to stand up. CONSTITUTION: A multifunctional electronic chair includes a base plate, a driving unit, a chair unit(200), and elevating unit. The base plate faces a floor. The driving unit moves wheels which are installed in the front and rear side of the base plate. The chair unit controls the motion direction of a base plate. The elevating unit includes a bending unit.

Description

Multifunctional Electric Chair {THE MULTI-FUNCTIONAL ELECTRIC CHAIR}

The present invention relates to an electric chair that can move the wheeled chair by electric movement to move the discomfort to the desired, in particular, the height of the chair is adjusted, can lie down while adjusting the angle of the backrest, can climb the stairs It relates to a multifunctional electric chair.

Korean Registered Utility Model Publication No. 20-0330118, "Wheelchair with electric motor for detaching and attaching", Korean Laid-Open Patent Publication No. 10-2007-0102767 "Spherical joint structure contactless electronic joystick using single hole lifting control sensor" The electric wheel chair known in this document makes it possible to move remotely without difficulty by moving the wheeled chair to the desired position by electric movement.

However, since such a conventional electric wheelchair has a function only to drive, there is a limit of the function that can only rest in a sitting position when the back hurts or tired while driving, and it is difficult to stand up, and it is difficult to stand up the stairs. Can't go up and down.

In particular, people with disabilities (disabled) have a lot of inconvenience when they have to stand up or sit on the floor when they do their daily work or work.

Korea Utility Model Publication No. 20-0330118 "Wheelchair with removable motor Korean Patent Application Publication No. 10-2007-0102767 "Spherical joint structure contactless electronic joystick using single hole lifting control sensor"

An object of the present invention is to provide a multi-functional electric chair that is easy to use because the height of the chair is adjusted, can lie down while adjusting the angle of the backrest, not only can greatly help to stand up and up and down the stairs.

The present invention for achieving the above object is a base plate facing the bottom; Driving means for moving the wheels mounted on the front and rear sides of the base plate body to move the base plate body forward, backward, left and right and stop; Chair means positioned on the base plate body, the movement impaired sitting and operating the traveling means to control the direction of movement of the base plate body; Link members are provided between the chair means and the base plate body at left and right sides below the chair means, and have folding means linked in bellows shape to drive the first driving motor mounted on the base plate body to fold the folding means. Elevating means configured to elevate the chair means from the base plate body by spreading or unfolding; And a power supply means installed on the base plate to supply power.

By the above solution, the height of the chair can be adjusted, it can lie down while adjusting the angle of the backrest, can provide a great help to stand up as well as can move up and down the stairs provides a convenient electric chair.

1 is a perspective view showing a multifunctional electric chair of the present invention.
Figure 2 is a perspective view showing the case of the multi-function electric chair of the present invention separately.
Figure 3 is a perspective view of the lifting means in the present invention.
Figure 4 is a perspective view showing the tilting means in the present invention.
Figure 5 is a plan view showing after separating the chair means in the present invention.
6 is a schematic rear view of FIG. 5.
7 is a view showing the basic position of the multifunctional electric chair of the present invention.
8 is a view showing a high position rising from the basic position of the multi-function electric chair of the present invention.
9 is a view showing the recline (RECLINE) posture of the multi-function electric chair of the present invention.
10 is a view showing a tilt (TILT) position of the multi-function electric chair of the present invention.
11 is a view showing a standing position of the multifunctional electric chair of the present invention.
12A is a view showing a lowered posture (low position) of the multifunctional electric chair of the present invention.
12B is a view illustrating a state in which the inclination angle of the backrest part is adjusted in the posture of FIG. 12A.
13a and 13b is a view showing the operation of the longitudinal stretching means in the present invention.
Figure 14a and 14b is a view showing a state of the armrest portion in the present invention.
15 is a view showing a state in which the multifunctional electric chair of the present invention climbs the stairs.
16 is a view showing a multi-functional electric chair descending the stairs of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in the figure, the multi-function electric chair of the present invention includes a base plate body 10 that faces the floor, and the base plate body 10 is provided with a traveling means 100.

The traveling means 100 moves the wheels 101 mounted on the front and rear sides of the base plate body 10 to move the base plate body 10 forward, backward, left and right and stops, as is well known, the base plate body 10 Power is obtained by connecting the motors 103 to the wheels 101 mounted at the rear of each, and controlling the power by mounting a clutch, a reducer, a brake, etc. between the motor 103 and the wheels 101.

The traveling means 100 is controlled by a traveling controller 111 having a joystick installed in the armrest portion 240 of the chair means 200 to move and stop the base plate body 10 before, after, left and right.

Chair means 200 is located on the base plate body 10, so that the impaired person sitting comfortably to operate the traveling means 100 to control the direction of movement of the base plate body (10).

An elevating means 300 is provided between the chair means 200 and the base plate body 10 for elevating the chair means 200 up and down from the base plate body 10.

The elevating means 300 includes a folding means 310 in which link members 311 are linked in a bellows shape, and drives the first driving motor 303 mounted on the base plate 10 to fold the folding means 310. By folding or unfolding, the chair means 200 is lifted from the base plate body 10.

The elevating means 300 is provided with the first screw rod member 321 installed on the base plate body 10 so as to correspond to the folding means 310 and rotated by the driving of the first driving motor 303. ) Is one of the link member 311 forming the lower portion is engaged to move along the length when rotating on the first screw rod member 321 and the link member 311 forming the upper portion of the seat means of the chair means 200 210, that is, the chair means 200 is lifted by slidingly contacting the seat support frame 213.

In the folding means 310, a sheet support frame 213 for supporting the seat 211 by attaching a roller or the like 312 at one end of the link member 311 constituting the upper portion, that is, the link member 311 located in front of the upper portion ) And other ones of the link members 311 constituting the upper and lower parts, that is, end portions of the link members 311 located from the top to the rear, are brackets 313 installed under the seat support frame 213. ), The end of the link member 311 located at the rear of the lower part is rotatably connected to one bracket 314 installed on the base plate body 10 to support the first screw rod member 321 to be rotated.

In addition, it is preferable to provide a roller or the like that comes into contact with the base plate body 10 at the end portion of the link member 311 engaged with the first screw rod member 321.

The first driving motor 303 is driven by a pulley (not shown) and a belt 336 connecting the pulleys which are respectively arranged on the rod of the first driving motor 303 and the first screw rod member 321. Transfer to the first screw rod member 321.

The driving of the first driving motor 303 is controlled by the operation controller 372 installed on the armrest portion 240 of the chair means 200, the operation controller 372 is the second driving motor 541, The three drive motor 831 is also controlled.

Accordingly, one of the link members 311 forming the lower portion of the first screw rod member 321 moves forward and backward of the first screw rod member 321 due to the forward and reverse rotation of the first screw rod member 321 by the driving of the first driving motor 303. The means 310 are folded or unfolded so that the chair means 200 moves up and down as shown in FIG. 8 (high posture).

Between the chair means 200 and the base plate body 10, that is, between the seat support frame 213 of the seat portion 210 and the base plate body 10, the chair means 200 in a form in which a small diameter part is fitted to the large diameter part. The support member 331, the length of which is adjusted according to the elevation of the installed, is to support the lifting of the chair means (200).

In addition, the base plate body 10 generates a signal for controlling the driving of the first driving motor 303, thereby limiting the movement range of the link member 311 moving along the first screw rod member 321. Lift control sensors 341, such as a limit switch to control the lift height of 200, are disposed along the length of the first screw rod member 321 at regular intervals.

For example, when the end of the link member 311 moving along the length of the first screw rod member 321 is in contact with the lifting control sensor 341 located in the center, the first driving motor 303 may be stopped. The height of the chair means 200 is adjusted to achieve the same basic posture.

On the other hand, the chair means 200 is extended at one end of the front leg portion 220 and the rear leg portion 230 is connected to rotate from the armrest portion 240, the middle of the front leg portion 220 of the left and right sides of the seat portion 210 Rotating to the middle, the middle of the frame 251 constituting the backrest portion 250 is connected to the inner surface of the armrest portion 240 is rotated and the end is connected to the left and right sides of the seat portion 210, thereby tilting means Due to the end of the rear leg 230 is moved forward and backward by the 500, the front leg 220 is rotated forward and protrudes, the seat portion 210 from the armrest portion 240 between the rear end down It descends inclined and the backrest 250 rotates to incline.

The tilting means 500 is mounted on the base plate body 10 toward the front wheel 101 and has a first support 503 having a first elastic spring (not shown) therein and a rear wheel corresponding to the first support 503. The second support 505 installed in the base plate body 10 toward the 101 and one end is rotatably connected to the second support 505 and the other end passes through the first support 503 to elasticity of the first elastic spring The bar rail 507 is installed to be inclined across the first support 503 and the second support 505 so as to receive the end, the end of the rear leg 230 is installed to be movable on the bar rail 507 A first movable member 510 protruding to form a pair of first protrusions 513 having a first long hole 511 to be coupled with the second screw rod member 531 and installed to be movable A second moving member 520 and a second moving member 520 protruding from a pair of second protrusions 523 having a second long hole 521 engaged with a lower portion of the first moving member 510. Through The second screw rod member 531 is installed to be rotated across the first support 503 and the second support 505, and is provided on the base plate body 10 to impart rotational force to the second screw rod member 531. It consists of a second drive motor 541.

The second driving motor 541 is driven by a pulley (not shown) and a belt 543 connecting the pulleys respectively arranged on the rod of the second driving motor 541 and the second screw rod member 531. Transfer to the second screw rod member 531.

Therefore, in the posture (basic posture) of the chair means 200 of FIG. 7, the first and second moving members 510 and 520 are rotated due to the rotation of the second screw rod member 531 by the driving of the second driving motor 541. When the rear leg portion 230 rotates from the armrest portion 240 by moving forward of the second screw rod member 531 and the end moves forward of the second screw rod member 531 (at this time, the first support 503 End of the bar rail 507 penetrating elastically and the bar rail 507 is almost horizontal), the front leg 220 is rotated forward to protrude, and the backrest 250 is rotated and inclined. It becomes the posture (recline posture) of FIG.

Subsequently, when the chair means 200 is lowered by driving the first driving motor 303 and folding the folding means 310, the seat 211 of the hip tailbone part is tilted and lowered and the front leg 220 and the backrest part are lowered. 250 is tilted to the posture (tilt position) of FIG. 10 to sit back and relax.

A U-shaped first leaf spring member 551 is installed between the first protrusions 513 of the first moving member 510 to elastically support the end of the rear leg 230 which moves the first long hole 511. This reduces the looseness and offsets the noise (noise) that can occur when moving.

In addition, the base plate body 10 generates a signal for controlling the driving of the second driving motor 541 to limit the movement range of the end of the rear leg 230 moving along the second screw rod member 531. Deformation control (tilting control) sensors 911, such as a limit switch for controlling deformation of the chair means 200, are disposed along the length of the second screw rod member 531 at regular intervals.

For example, when the end of the rear leg 230 moving along the length of the second screw rod member 531 is in contact with the deformation control sensor 911 located in front, the second driving motor 541 is stopped and the chair is stopped. The means 200 may be modified in the postures of FIGS. 9, 10, and 11.

Meanwhile, the front leg 220 is fixed from the base plate body 10, the rear end of the sheet 211 is separated from the sheet support frame 213, and the bar rail 507 is fixed from the first support 503. By driving the two-drive motor 241 to move the end of the rear leg portion 230 to the front of the second screw rod member 531, the rear end of the seat portion 210 is lifted as the improper behavior rises, as shown in FIG. You will stand up.

A length-expansion means 560 is installed to extend and contract the length of the chair means 200 while obliquely crossing the end of the frame 251 of the backrest part 250 and the rear leg 230.

The length-expanding means 560 is connected to the end of the frame 251 of the backrest part 250 in the middle and the tubular body 561 and the tubular body 561 having the third long hole 562 formed on the left and right opposite the middle. (563a) is inserted into the inside of the center is connected to the rear leg 230 through the third long hole 562 is rotated so that when the chair means 200 descends and descends from the tubular body 561 It consists of one insertion member (563), the second elastic spring for canceling the noise (noise) that can occur during the movement by smoothly supporting the first insertion member (563) inside the tubular body (561) ( 264 is installed.

A third elastic spring 565 is installed between the end of the tubular body 561 on the opposite side of the end where the first insertion member 563 is drawn out and the armrest portion 240 to provide elasticity to the chair means 200 in a standing position. to provide.

As shown in FIGS. 13A and 13B, the length-expansion means 560 includes a first insertion member 563 from the tube body 561 so that the chair means 200 is in a down position as shown in FIG. 12A. Stick out and adjust the length.

Triangularly formed at the end of the first inserting member 563 by rotating the intermediate triangular projection (571) through the end of the tubular body (561) elastically rotated to the end of the tubular body (561) in which the first inserting member (563) The first locking means 570 is installed to be locked by the groove 567 to lock the length-expanding means 560, and the first locking means 570 is deformed in a posture in which the chair means 200 sits down as shown in FIG. 12A. The time is released so that the length of the length stretching means 560 is adjusted.

The second insertion member 581 is inserted into the armrest part 240 toward the end portion 241 corresponding to the backrest part 250, and the middle of the frame 251 of the backrest part 250 is the end thereof. It is connected to the second insertion member (581) through the long groove 242 is formed along the length of the armrest portion 240 from the 241, the second back when the back portion 250 is inclined or down Insertion member 581 is released from the armrest portion 240.

An air spring 582 for providing elasticity to the second insertion member 581 is installed in the armrest part 240.

As shown in FIGS. 14A and 14B, when the hole formed in the armrest part 240 coincides with one of the holes formed in the second insertion member 581, the armrest part 240 has a corresponding hole. The second locking means 290 is elastically inserted to lock the second insertion member 581 so as to adjust its salvage length, so that the inclination angle of the backrest part 250 as shown in FIG. Adjust the control so that the impaired person can rest in the position he wants.

The posture of the chair means 200 as shown in FIG. 12A is made by the folding means 310 being driven down by the driving of the first driving motor 303, and the second insertion member 581 protrudes from the armrest part 240. In addition, the first insertion member 563 protrudes from the tube body 561.

In this case, a stopper is installed to block the backrest 250 from being folded toward the seat 210. The stopper may be, for example, a frame of the backrest 250 on the side of the seat 211 of the seat 210. 251 may be installed in the form of a projection to be caught.

On the other hand, between the end of the front leg 220 and the base plate body 10, the elevating guide means 260 for guiding this when the chair means 200 is provided, the elevating guide means 260 is a base plate body ( 10 and a lifting member 265 which is rotatably connected to the end of the front leg 220 with an axial rod 261 protruding from the 10, and an insertion groove 263 into which the axial rod 261 can be inserted. During the lifting of the part 220, the lifting member 265 moves up and down the shaft 261 to guide the lifting of the front leg 220 (see FIG. 7).

In addition, between the front leg portion 220 and the elevating guide means 260 is fixed to the fixed link 271 protruding in the middle of the front leg portion 220, the fixed link 271 and the elevating member 265 Lead means 270 made of a rotary link (273) to be rotated to the end is installed to lead the protruding leg 220, which protrudes as shown in Figure 9 and 10 in place.

In addition, a third lock means 700 (hereinafter referred to as 'fore leg lock') is provided between the front leg 220 and the elevating member 265 (see FIG. 7), and the seat 211 and the seat support frame A third locking means 700 (hereinafter referred to as a 'sheet lock') is provided between the 213 and the third locking means 700 between the first support 503 and the bar rail 507 in the tilting means 500. The locking means 700 (hereinafter referred to as 'tilting lock') is installed and deformed and unlocked when the chair means 200 is deformed, the shape of which is the lock pin 701 in the lock hole 703 as shown in FIG. With the help of springs, elastically plugged in and take the way of hanging. For example, after connecting the wire 705 to the lock pin 701, a lever capable of pulling the wire 705 may be installed in the armrest unit 240 to operate the lock pin 701.

As shown in FIG. 7, the seat lock is determined in the basic position, the fore leg and the tilting lock are released, and in the standing position as shown in FIG. 11, the seat lock is released and the fore leg and the tilting lock are determined.

In addition, the armrest portion 240 is installed to be folded to hold the gripping member 281, the gripping member 281 is folded to the armrest portion 240 to form an armrest in the usual manner while holding the behavior impaired in the posture of FIG. Used for standing gripping.

The holding member 281 is rotatably installed in the holding member 281 so as not to fall down by blocking the stomach or chest when the impaired person stands up (see FIGS. 14A and 14B).

In addition, a support plate 284 for supporting the calf is installed at the front lower portion of the seat portion 210. The supporting plate 284 is formed to be detachably coupled to each of the protrusions 284a and the grooves corresponding to each other with respect to the front leg portion 220, and is detached from the front leg portion 220, and then the protrusions 284a are armrest portions ( It is sandwiched between the 240 and the holding member 281 and placed horizontally in front of the chair means 200 to provide a place for placing food, objects, books, etc. (see Fig. 14b).

In addition, the base plate body 10 is provided with a foot support plate 285, which is mounted in front of the base plate body 10 so as to slide on the rail to support the foot.

In addition, the step elevating means 800 is installed on the base plate body 10.

Stair lifting means 800 is a four foot member (821, 823, 825, 827) is bent one end and a plurality of projections radially protruding foot piece 810 is installed at the bent one end foot 810 is a step and step surface ( 2 foot members 821 and 823 positioned at the front of the base plate body 10 by the driving of the third driving motor 831 and installed at the base plate body 10 adjacent to the wheel 101. The two foot members 825 and 827 are rotated so that the base plate 10 is stepped up and down.

The first rotary gear 852 and the second rotary gear 853 are provided at a distance on the left and right sides of the base plate body 10, and the endless track 851 is wound around the first and second rotary gears 852 and 853 to physically When the first rotary gear 852 is rotated by the driving of the third drive motor 831, the endless track 851 rotates to raise and lower the base plate body 10 along the stairs.

As shown in FIG. 5, the third drive motor 831 rotates the foot member by rotating the shafts 861 integrated with the foot members 825 and 827 located at the rear of the base plate body 10 using the worm and the worm gear. Rotate (825,827).

The first rotary gear 852 is endlessly received by the power of the third drive motor 831 by placing the belt 865 between the pulleys after the pulleys corresponding to the pulleys installed on the shaft 861 on the rotating shaft. The foot members 821 and 823 located at the front of the base plate body 10 while rotating the orbit 851 are arranged to have the pulleys arranged on the shaft 868 integrated with the foot members 825 and 827, and then the first rotary gear 852 The belt 871 is engaged with the pulley to rotate by receiving the power of the third driving motor 831 through the first rotary gear 852.

As shown in Figure 15 and 16, the chair means 200 is preferably made in the down position of Figure 12 for safety when climbing the stairs, as shown in Figure 12a when climbing the stairs It is good to put the backrest 250 like a posture to bring the center of gravity forward. When going down the stairs, as shown in FIG. 16B, it is preferable to lay the back portion 250 on the back of the center of gravity as shown in FIG. 12B.

When the foot pieces 810 of the front and rear foot members 821, 823, 825, and 827 do not touch the stairs, one point of the caterpillar 851 may reach the stairs, thereby sufficiently climbing the stairs.

As shown in Fig. 15, the front foot members 821 and 823 move over the stairs, and the rear foot members 825 and 827 support the base plate body 10 not to be pushed out.

On the other hand, the base plate body 10 is provided with a power supply means 401 for supplying power.

As described above, according to the present invention, the height of the chair is adjusted, the user can lie down while adjusting the angle of the backrest, not only can greatly help to stand up, but can also lift and move the stairs, thereby providing a convenient electric chair. .

10: base plate 100: driving means
101: wheel 103: motor
111: driving controller 200: chair means
210: seat part 211: seat
213: seat support frame 220: front leg
230: rear leg 240: armrest
241: end 242: long groove
250: Back part 251: Frame
260: lifting guide means 261: shaft
263: insertion groove 265: elevating member
270: lead means 271: fixed link
273: rotary link 281: holding member
283: blocking member 284: support plate
284a: protrusion 285: footrest plate
290: second locking means 300: lifting means
303: first driving motor 310: folding means
311: link member 312: roller
313,314: Bracket 321: First threaded rod member
331: support member 336,543,865,871: belt
341: lift control sensor 372: operation controller
401: power supply means 500: tilting means
503: first support 505: second support
507: bar rail 510: the first moving member
511: The first chapter 513: The first stone
520: second moving member 521: second hole
523: second protrusion 531: second screw rod member
541: second drive motor 551: first leaf spring member
560: length extension means 561: tube
562: Chapter 3 hole 563: First insertion member
563a: middle 564 of the first insertion member: second elastic spring
565: third elastic spring 567: triangular groove
570: first locking means 571: triangular protrusion
581: second insertion member 582: air spring
700: third lock 701: lock pin
703: lockhole 705: wire
800: step climbing 810: foot
821,823,825,827: Foot member 831: Third drive motor
851: Infinite Orbit 852: First Rotary Gear
853: 2nd rotary gear 861,868: shaft
911: deformation control sensor

Claims (24)

A base plate body facing the bottom;
Traveling means (100) for moving the wheels (101) mounted in front and rear of the base plate body (10) to move the base plate body (10) forward, backward, left and right and stop;
Chair means (200) positioned on the base plate body (10) to allow the impaired person to sit and manipulate the traveling means (100) to control the direction of movement of the base plate body (10);
Link members 311 installed between the chair means 200 and the base plate body 10 at the lower left and right sides of the chair means 200 are provided with folding means 310 linked in a bellows shape. Elevating means (300) for driving the first drive motor (303) mounted on the plate (10) to raise or lower the chair means (200) from the base plate (10) by folding or unfolding the folding means (310); And
Installed on the base plate body 10 and configured to include a power supply means for supplying power, 401,
Multifunctional electric chair. According to claim 1, The lifting means 300 is installed on the base plate body 10 to correspond to the folding means 310 to rotate the first screw rod member 321 to be driven by the drive of the first drive motor (303). The folding means 310 is engaged so that one link member 311 constituting the lower portion moves along the length when the link member 311 constituting the lower portion rotates on the first screw rod member 321, and one link member 311 forms the upper chair. Multifunctional electric chair, characterized in that for lifting the chair means 200 by sliding in contact with the seat portion 210 of the means (200). According to claim 2, Between the chair means 200 and the base plate body 10 is adjusted to the length of the chair means 200 in accordance with the lifting and lowering of the chair means 200 in the form of the small diameter portion is fitted to the large diameter portion to lift the chair means 200. Multifunctional electric chair, characterized in that the support member 331 is further installed to support the. The lift control sensors 341 and the deformation control sensors 911 are further disposed on the base plate 10, and the lift control sensors 341 are formed of the first screw rod member 321. Arranged along the length to generate a signal for controlling the drive of the first drive motor 303 to limit the movement range of the link member 311 moving along the first screw rod member 321, deformation control sensors 911 is disposed along the length of the second screw rod member 531 to generate a signal for controlling the driving of the second drive motor 541 to move along the second screw rod member 531 ( Multi-function electric chair characterized by limiting the movement range of the end of 230). According to claim 2, The chair means 200 is the front leg portion 220 and the rear leg portion 230 is connected to extend from the armrest portion 240 is rotated, the middle is connected to the left and right sides of the seat portion 210 And, the middle of the frame 251 constituting the backrest part 250 is connected to the inner surface of the armrest portion 240 is rotated and the end is connected to the left and right sides of the seat portion 210, thereby tilting means 500 Due to the end of the rear leg 230 is moved forward and backward to rotate the front leg 220, the front portion rotates to come out, the seat 210 is lowered from the armrest portion 240 inclined downward to the back and back Multi-function electric chair, characterized in that the unit 250 is rotated inclined. According to claim 5, The tilting means 500 is installed in the base plate body 10 toward the front wheel 101, the first support 503 having a first elastic spring therein, and corresponding to the first support 503 The second support 505 which is installed in the base plate body 10 toward the rear wheel 101 and one end is rotatably connected to the second support 505 and the other end penetrates through the first support 503 to be first elastic. The bar rail 507 is installed to be inclined across the first support 503 and the second support 505 so as to receive the elasticity of the spring, and is installed on the bar rail 507 so as to be movable and the rear leg 230 at the top. The first moving member 510 and the second screw rod member 531 which are formed to protrude from the pair of first protrusions 513 having the first long hole 511 engaging with the end of A second moving member 520 installed and protruding a pair of second protrusions 523 having a second long hole 521 coupled to a lower portion of the first moving member 510, and a second moving member (520) A second screw rod member 531 which is installed to rotate between the first support 503 and the second support 505, and is installed on the base plate body 10 to the second screw rod member 531. Multifunctional electric chair, characterized in that consisting of a second drive motor 541 to give a rotational force to. The U-shaped first plate spring member 551 is further provided between the first protrusions 513 of the first moving member 510 to elastically support the end of the rear leg 230. Multifunctional electric chair characterized in that. The method of claim 6, wherein the length of the chair means 200 is expanded and contracted by the left and right movement of the rear leg 230 across the end of the frame 251 of the backrest part 250 and the rear leg 230 inclined The length-expansion means 560 is further installed, and the length-expansion means 560 is connected to the middle of the frame 251 of the backrest part 250 so as to be rotated, and the third long hole 562 is disposed on the left and right sides of the middle. The formed tubular body 561 and the middle portion 563a are inserted into the tubular body 561 so as to be rotatably connected to the rear leg 230 through the third long hole 562 so that the chair means 200 descends and descends. Multi-function electric chair, characterized in that made of a first insertion member (563) to protrude from the tubular body (561) when sitting. The multifunctional electric chair according to claim 8, wherein a second elastic spring (264) for elastically supporting the first inserting member (563) is further installed in the tubular body (561). The multifunctional spring according to claim 8, wherein a third elastic spring 565 is further installed between the end of the tube 561 opposite to the end where the first inserting member 563 is placed and the armrest portion 240. Electric chair. The first insertion member 563 of claim 8, wherein the first insertion member 563 is elastically rotated at an end portion of the tubular body 561 on which the first insertion member 563 is placed, and the intermediate triangular protrusion 571 passes through the end portion of the tubular body 561. Multi-function electric chair, characterized in that the first locking means 570 is further installed to lock the length-expansion means 560 is bitten by a triangular groove (567) formed at the end of the). The method of claim 8, wherein the second insert member 581 is inserted into the armrest portion 240 toward the end portion 241 corresponding to the backrest portion 250, the frame of the backrest portion (250) When the middle of the 251 is connected to the second insertion member 581 rotatably from the end 241 through the long groove 242 formed along the length of the armrest portion 240, when the backrest 250 is inclined Multifunctional electric chair, characterized in that the second insertion member (581) is released from the armrest portion (240). The method according to claim 12, wherein if the hole formed in the armrest portion 240 coincides with one of the holes formed in the second insertion member 581, the armrest portion 240 is elastically inserted into the corresponding holes. Multi-function electric chair characterized in that the second locking means (290) is further provided to adjust the inclination angle of the backrest part 250 by locking the second insertion member (581). The multifunctional electric chair according to claim 12, wherein an air spring (582) is further provided inside the armrest part (240) to impart elasticity to the second insertion member (581). The multifunctional electric chair according to claim 8, wherein a stopper is further installed on the seat 211 of the seat 210 to prevent the backrest 250 from being folded toward the seat 210. According to claim 5, the lifting guide means 260 is further provided between the end of the front leg portion 220 and the base plate body 10, the lifting guide means 260 is formed to protrude from the base plate body 10 A shaft member 261 and the lifting member 265 having an insertion groove 263 into which the shaft rod 261 can be inserted and rotatably connected to the end of the front leg portion 220, the elevating of the front leg portion 220 Multi-function electric chair, characterized in that the elevating member 265 to lift the shaft 261 to guide the lifting of the front leg 220. 17. The method of claim 16, between the front leg 220 and the elevating guide means 260 is fixed in the middle of the front leg 220, the fixed link 271 and the fixed link 271 and the elevating member Multifunctional electric chair, characterized in that the lead means 270 made of a rotary link (273) connected to both ends to be rotated to (265). The method according to claim 16, wherein the front leg portion 220 and the elevating member 265 of the elevating guide means 260, between the seat 211 and the seat support frame 213 in the seat portion 210, and Multifunctional electric chair, characterized in that the third locking means 700 is further installed between the first support 503 and the bar rail 507 in the tilting means (500). 19. The multifunctional electric chair according to claim 18, wherein the third locking means (700) forms a lock pin (701) which is elastically moved back and forth by an external force to be inserted into the lock hole (703). The multifunctional electric chair according to claim 5, wherein the armrest part (240) is further provided with a holding member (281) having a blocking member (283) to be folded. The multifunctional electric chair according to claim 5, wherein a supporting plate (284) is further installed on the front lower portion of the seat portion (210) to support the calf. According to claim 1, wherein the base plate body 10 is a multi-function characterized in that the foot support plate 285 is further installed to support the foot to stand in front of the base plate body 10 to slide on the rail (11) Electric chair. According to claim 1, The base plate body 10 is further provided with a step elevating means 800, the step elevating means 800 is bent one end and a plurality of protrusions radially protruding in the bent end ( Four foot members 821, 823, 825, and 827 which are installed to rotate 810 are installed to be adjacent to the wheel 101 on the base plate body 10 so that the foot piece 81 faces the stairs, and the base is driven by the third driving motor 831. Multi-functional electric chair characterized in that the base plate body 10 is stepped up and down by rotating two foot members (821, 823) located in front of the plate body 10 and two foot members (825, 827) located in the rear. The multifunctional electric chair according to claim 23, wherein the base plate body (10) is further provided with an endless track (851) which rotates by driving of the third driving motor (831).

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