KR100338788B1 - Wheelchair lift apparatus - Google Patents

Abstract

The present invention relates to a wheelchair lift device configured to move the wheelchair to a desired height by operating the switch of the operation panel in a state where people with disabilities who are inconvenient to walk in a wheelchair.

According to a feature of the present invention, a conventional wheelchair lift device, fixed to the upper end of the base 600, the support body 100 is provided with an installation space portion 110 is opened in the front; A guide rail 200 disposed in parallel to and vertically coupled to an inner surface of the installation space 110 of the support body 100; It is coupled to the guide rail 200 so as to be transported up and down is installed for the safe loading of the wheelchair and on both ends and the back of the guide conveying bar 311 is fixed to the conveying body 420 of the lifting means 400 in the front The slide bar 312 to be transported along the guide rail 200 is vertically fixed, the guide roller 313 is rotatably coupled to both ends of the slide bar 312, the guide bar 311 The front and rear of the lifting frame 310 is coupled to the support bar 314 is fixed; The protective plate 322 is vertically fixed to the front and rear ends of the upper surface of the loading plate 321 fixedly coupled to the connection support bar 314, one side or both sides of the loading plate 321 to the folding means 330 Lifting platform 300 is configured to include a lifting plate 320 is coupled to the hinge 323a rotatably coupled to the safety plate 323; Both ends are rotatably coupled to the upper surface and the base 600 of the installation space 110 of the support main body 100 so as to elevate the lifting platform 300 up and down, and parallel to the guide rail 200. A feed shaft 410 having a threaded portion 411 formed at its periphery; The screw shaft 411 of the transfer shaft 410 is fastened to the transfer shaft 410 and fixedly coupled to the platform 300 so as to elevate the platform 300 according to the rotation of the transport shaft 410. A conveying member 420 having a screw portion 421 fastened therewith; Elevating means (400) configured to include a driving motor (430) driven according to an electrical signal to rotate the transfer shaft (410); There is provided a wheelchair lift apparatus comprising a control means 500 for controlling the elevating means 400.

The inventors of the present invention wheelchair lift device to facilitate the disability of people with disabilities walking by riding the wheelchair after operating the switch of the operation panel to move safely and conveniently to the desired height while riding the wheelchair to facilitate the convenience of the disabled Of course, the elderly and children also have the effect of making it easy and safe to use.

Description

Wheelchair Lift Device {WHEELCHAIR LIFT APPARATUS}

The present invention relates to a wheelchair lift device, and more particularly, to a wheelchair lift device configured to move the wheelchair to a desired height by operating the switch of the operation panel while the disabled person is uncomfortable to ride the wheelchair.

In general, most buildings such as government offices and shopping malls have a stairway to enter the entrance, which is a great inconvenience for the disabled.

In addition, in order to solve the above inconvenience, conventionally, a slope inclined by the side of a stairway allows a disabled person in a wheelchair to use the same to enter the building. However, since the slope is steep, most people ride a wheelchair. In the state, it was difficult and difficult for the disabled to climb the wheel and climb the slope.

The present invention has been proposed in view of the problems described above, the purpose of which is to move the lifted to the desired height in the state of riding the wheelchair by operating the switch of the operation board after a person with a disability who is uncomfortable to ride in a wheelchair It is to provide a wheelchair lift device configured to.

According to a feature of the present invention, a conventional wheelchair lift device, comprising: a support body fixedly coupled to an upper end of a base and having an installation space portion which is opened forwardly therein; A plurality of guide rails disposed in parallel to and vertically coupled to an inner surface of the installation space of the support body; The slide bar vertically coupled to the guide rail to the upper and lower ends of the guide conveying bar is coupled to the guide rail to be transported up and down and installed on the safe loading of the wheelchair and the transfer member of the lifting means is fixed to the front and vertically coupled Guide rollers are rotatably coupled to both ends of the slide bar, and a lifting frame having a connection support bar fixedly coupled to a front surface of the guide transfer bar; The protective plate is vertically fixed to the front and rear ends of the loading plate fixedly coupled to the connection support bar, one side or both sides of the loading plate is configured to include a lifting plate which is hinged to be pivotally coupled to the safety plate folded by the folding means A platform; A transfer shaft installed to elevate the platform up and down, the both ends of which are rotatably coupled to the upper surface and the base of the installation space portion of the support body so as to be parallel to the guide rails, and having a threaded portion at an outer periphery thereof; A conveying body which is fastened to the conveying shaft so as to elevate the platform according to the rotation of the conveying shaft and is fixedly coupled to the elevating platform, and having a threaded portion engaged with the threaded portion of the conveying shaft; Elevating means including a driving motor driven in accordance with an electrical signal to rotate the transfer shaft; There is provided a wheelchair lift apparatus comprising a control means for controlling the lifting means.

1 is a perspective view showing a wheelchair lift apparatus according to an embodiment of the present invention.

Figure 2 is an exploded perspective view showing the lifting means of the main part of the present invention wheelchair lift device.

3 is an assembled view showing a coupled state of the lifting means shown in FIG.

Figure 4 is a side view of the present invention wheelchair lift device.

Figure 5 is a block diagram showing the control means that is the main part of the present invention wheelchair lift device.

Figure 6 is an exploded perspective view showing another example of the lifting means which is the main part of the present invention wheelchair lift device.

7 is an assembled view showing a coupled state of the lifting means shown in FIG.

Figure 8 is an exploded perspective view showing another example of the lifting means which is the main part of the present invention wheelchair lift device.

* Description of the symbols for the main parts of the drawings *

100: support body 110: installation space

120: cover plate 200: guide rail

210: guide groove 211: first guide groove

212: 2nd guide groove 220: Support bracket

300: platform 310: platform

311: guide bar 312: slide bar

312 ': first guide support element 312 ": second guide support element

312a: Pin 312b: Pin Ball

312c: Bolt 313: guide roller

314: connection support bar 315: vertical connection bar

320: lifting plate 321: loading plate

322: protective plate 323: safety plate

323a Hinge 324 Operation panel

330: folding means 331: guide bar

331a: inclined portion 332: rotation bar

333: rotating roller 400: lifting means

410: feed shaft 411: thread

412: bearing 420: conveying body

421: screw portion 430: drive motor

431 drive shaft 440 reducer

441: manual drive shaft 442: pulley

443: belt 444: manual lever

450: hydraulic cylinder 451: piston

460: hydraulic generating means 470: elevating drive bar

471: guide roller 480: drive chain

481: Chain Gear 482: Stopper

482a: Slide Roller 483: Spring

490 pulley 500 control means

510: switch 520: microcomputer

530: detection means 540: display means 600: expectation

Hereinafter, described in detail with reference to the accompanying drawings, the present invention wheelchair lift device.

1 is a perspective view showing a wheelchair lift apparatus according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing the lifting means which is the main part of the present invention wheelchair lift apparatus, Figure 3 is a combined lift of the lifting means shown in Figure 2 Figure 4 is an assembly view showing a state, Figure 4 is a side view showing a wheelchair lift device of the present invention, Figure 5 is a block diagram showing a control means that is the main part of the wheelchair lift device of the present invention.

As shown in the figure, the wheelchair lift apparatus according to the embodiment of the present invention is fixedly coupled to the upper end of the base 600 and has a support main body 100 in which an installation space 110 is opened in the front and the support main body 100. A plurality of guide rails (200) formed in the lengthwise direction of the guide space 210 is formed in the installation space portion 110 inside the both sides and the rear in parallel and vertically coupled to each other and the inner surface of the U-shaped guide grooves 210, The lifting platform 300 coupled to the rail 200 to be transported up and down, and the wheelchair is mounted, the lifting means 400 for elevating the lifting platform 300 up and down, and the control means for controlling the lifting means 400 ( 500).

As shown in FIG. 2, the lifting means 400 is rotatably coupled to both ends of the installation space 110 of the support body 100 and the base 600 so as to be parallel to the guide rail 200. It is fastened to the conveyance shaft 410 and the conveying shaft 410 so as to elevate the platform 300 according to the rotation of the conveying shaft 410 and the conveying shaft 410, the screw shaft 411 is fixed to the platform 300 And a conveying body 420 having a screw portion 421 fastened to the screw portion 411 of the conveying shaft 410 and a drive motor 430 that is driven according to an electrical signal to rotate the conveying shaft 410. And, it is composed of a reducer 440 to transfer the driving force of the drive motor 430 to the transfer shaft 410.

At the upper end of the base 600 and the inner upper surface of the support main body 100 to which the transfer shaft 410 is rotatably coupled, bearings 412 are provided at both ends of the transfer shaft 410, respectively, to be coupled to each other. The rotation of the transport shaft 410 rotated by 430 is configured to be made more smoothly.

The drive motor 430 and the reducer 440 to which the driving force of the drive motor 430 is added and fixed are fixedly coupled to the inner upper surface of the support body 100, and the drive motor 430 is forward or reverse according to an electrical signal. A three-phase drive motor, that is, a forward and reverse drive motor rotated, is used, and the reducer 440 may be manually driven to manually rotate the feed shaft 410 linked with the reducer 440 in some cases. A manual drive shaft 441 into which the lever 444 is fitted is provided.

The lifting platform 300 is a slide bar for transporting along the guide rails 200 at both ends and the rear of the guide transport bar 311 is fixed to the front surface of the transfer body 420 of the lifting means 400 ( 312 is fixedly coupled vertically and the guide roller 313 is rotatably coupled to both ends of the slide bar 312, the connection support bar 314 is fixed to the front of the guide transfer bar 311 horizontally fixed The lifting plate 310 and the protection plate 322 is vertically fixed to the front and rear ends of the upper surface of the mounting plate 321 fixedly coupled to the connection support bar 314 and one side of the mounting plate 321 or The safety plate 323, which is folded by the folding means 330, is formed on both sides of the lifting plate 320 to which the hinge 323a is rotatably coupled.

The slide bar 312 which is coupled to both ends and the rear of the guide transfer bar 311 of the lifting frame 310 and slides along the guide groove 210 of the guide rail 200 is fixed to the guide roller 313 at both ends. A rectangular second guide support element 312 ″ having a centered perforation between the plurality of first guide support elements 312 ′ in which the pin hole 312 b is formed to insert the pin 312 a is integrally formed by the bolt 312 c. Combination is configured, the guide bar 311 is connected to the slide bar 312 of the lifting frame 310 is arranged in two up and down, the connection support bar is integrally coupled to the guide bar (311) ( 314 is also provided with a plurality, the connection support bar 314 is connected to each other by a vertical connection bar 315.

In addition, the mounting plate 321 of the elevating plate 320 is fixed to the lower end of the vertical connection bar 315, located in the rear of the protective plate 322 coupled to the top and back of the top of the mounting plate 321 The protective plate 322 is fixedly coupled to the vertical connection bar 315, the operation panel to be installed on the protective plate 322, a lamp indicating the lifting state of the switch or the lifting platform 300 for operating the drive motor 430 is installed. 324 is provided, the lifting means 400 and the guide rails 200 and the like on the front of the installation space 100 of the support body 100 in which the platform is located, and also of the platform 300 The cover plate 120 is coupled to secure the occupant.

The folding means 330 is vertically fixed to the outer one side of the support body 100 and the guide bar 331, the inclined portion 331a is formed at both ends, and fixedly coupled to the safety plate 323 and L shape Rotating bar 332 formed of a, and the rotating roller 333 is rotatably coupled to the end of the rotating bar 332 to be transported along the guide bar 331, the length of the guide bar 331 The length is determined according to the height at which the platform 300 is elevated.

As shown in FIG. 6, the control unit 500 generates and outputs a signal for driving the driving motor 430, and receives and outputs a signal output from the switch 510. Check the direction of driving the motor 430 is a signal for driving the driving motor 430, the microcomputer 520, and the lifting position of the lifting platform 300 is elevated by the rotation of the drive motor 430 The sensing means 530 for sensing and applying the signal to the microcomputer 520, and the display means 540 indicating the operation signal of the switch 510 and the state of the platform 300, the switch 510 And the display means 540 is installed on the operation panel 324 coupled to the lifting platform (300).

In addition, the sensing means 530 is installed on the upper and lower ends of the guide rail 200, respectively, a signal generating element (not shown) for generating a signal, and the lifting platform 300 to slide along the guide rail 200. Installed on the slide bar 312 is composed of a signal sensing element (not shown) for detecting a signal generated from the signal generating element 531 to be able to detect the position of the platform 300, the As the signal generating element and the signal sensing element, a light emitting element, a light receiving element, a photosensor, a magnet, a hall sensor, a magnetic tape, a magnetic sensor, or the like may be used.

Figure 6 is an exploded perspective view showing another example of the lifting means that is the main part of the present invention wheelchair lift device, Figure 7 is an assembled view showing a combined state of the lifting means shown in FIG.

As shown in the drawing, the elevating means 400, which is a main part of the wheelchair lift apparatus of the present invention, may be configured to operate the platform 300 by hydraulic pressure, and the configuration is expected to be parallel to the guide rail 200 ( 600 is fixedly coupled to the upper end of the vertical hydraulic cylinder 450 to which the piston 451 is transferred by hydraulic pressure, the hydraulic pressure generating means 460 for generating the hydraulic pressure supplied to the hydraulic cylinder 450, and the hydraulic pressure A lift drive bar 470 fixedly coupled to the piston 451 of the cylinder 450 and rotatably coupled to a guide roller 471 rotated along the guide groove 210 of the guide rail 200 at both ends thereof; Drive chains 480 fixed at both ends of the elevating drive bar 470 and the lifting platform 300 so as to elevate the elevating platform 300 according to the movement of the elevating drive bar 470, and the driving chain 480 Fixed to the elevating drive bar 470 to be guided by Consists of a pulley 490 to be engaged.

At this time, the guide groove 210 is formed in the guide rail 200 is the first guide groove 211 is the slide guide bar 470 is slide guide and the second guide groove 212 is the slide guide 300 is guided. It is formed in the longitudinal direction in parallel, when the piston 451 of the hydraulic cylinder 450 by the hydraulic generating means 460 is transferred to the lifting drive bar 470 fixedly coupled to the piston 451 guide rail 200 The lifting platform 300, which is transported along the first guide groove 211 at the same time and connected to the lifting driving bar 470 and the drive chain 480, is elevated along the second guide groove 212 of the guide rail 200. It is configured to be.

In addition, the hydraulic pressure generating means 460 is a hydraulic pressure by allowing the oil stored in the tank (not shown) to be supplied to the hydraulic cylinder 450 or discharged from the hydraulic cylinder 450 in accordance with the operation of the oil pump (not shown) Will be generated.

Figure 8 is an exploded perspective view showing another example of the lifting means which is the main part of the present invention wheelchair lift apparatus.

As shown in the drawing, the elevating means 400, which is a main part of the wheelchair lift apparatus of the present invention, may be configured to operate the platform 300 by the drive chain 480 and the chain gear 481, and its configuration may be electrically operated. A driving motor 430 in which the driving shaft 431 is rotated according to the signal; A speed reducer 440 for outputting by subtracting and outputting a driving force of the drive motor 430; A pulley 442 and a belt 443 for transmitting a driving force of the driving motor 430 to the reduction gear 440; A plurality of chain gears 481 rotatably coupled to the reducer 440 and the support body 100, respectively; A driving chain 480 that is hooked to the plurality of chain gears 481 so as to elevate and elevate the platform 300 according to the driving of the reducer 440, and both ends of which are fixedly coupled to the platform 300; Is rotatably coupled to the support body 100, and consists of a stopper 482 to prevent the lifting platform 300 to be elevated above a specific position.

At this time, the stopper 482 is elastically rotated by the spring 483 to the support bracket 220 coupled to one side of the guide rail 200 which is disposed perpendicularly to the inner middle portion of the support body 100. Rotatingly coupled, the end of the dropper 482, the slide roller 482a for sliding along the drive chain 480 is rotatably coupled, when the lifting platform 300 is elevated above a specific position, that is, lifting platform When the separated portion of the drive chain 480 having both ends coupled to 300 is located at the stopper 482, the stopper 482 is elastically separated from the drive chain 480 by the elastic force of the spring 483. ), And the situation is detected by the sensing means 530 is transmitted to the microcomputer 520 of the control means 500, the microcomputer 520 stops the driving force of the motor to transfer the drive chain 480 To stop.

Referring to the operation of the present invention wheelchair lift device configured as described above with reference to Figures 1 to 5.

First, the handicapped person in a wheelchair rolls the wheel of the wheelchair and rides on the lifting plate 320 of the lifting platform 300, and then turns on the switch 510 of the control means 500 installed on the operation panel 324 on the lifting platform 300. Then, the microcomputer 520 receiving the signal of the switch 510 determines the rotational direction of the driving motor 430 to rotate the driving motor 430 in the forward direction, for example, and then the driving motor 430. The driving speed is changed by the reducer 440 and then transferred to the transfer shaft 410 so that the transfer shaft 410 is rotated, and the transfer body 420 coupled to the transfer shaft 410 during the operation is transferred to the transfer shaft. Ascending upward along the lifting platform 300 is fixed to the conveying body 420 is coupled to the upward direction.

At this time, the rotating roller 333 rotatably coupled to the end of the rotating bar 332 of the folding means 330 is pushed while being moved along the lower inclined portion 331a of the guide bar 331 and the rotating bar 332 is pushed. The safety plate 323 is pivoted about the loading plate 321 horizontally and vertically with respect to the hinge 323a to prevent the wheelchair mounted on the loading plate 321 from being separated from the loading plate 321. Then, when the platform 300 is close to the appropriate ascent height, the rotating roller 333 is moved along the upper inclined portion 331a of the guide bar 331, the rotating bar 332 is a hinge 323a The safety plate 323 is pivoted about the loading plate 321 to be unfolded from vertical to horizontal with respect to the loading plate 321 to allow the wheelchair to exit from the loading plate 321.

In addition, when the lifting platform 300 that is raised in the upward direction is lowered to an appropriate position, the detection means 530 installed on the lower side of the support body 100 detects this and applies the signal to the microcomputer 520, the signal The received microcomputer 520 stops the driving of the driving motor 430 and stops the lifting platform 300, and the above state, for example, the on state of the switch 510 or the driving of the driving motor 430. Whether or not the position of the platform 300 is displayed through the display means 540 installed on the operation panel 324.

On the other hand, if the disabled in a state in a wheelchair on the platform 300 is lifted to the station and then stopped the switch 510 of the control means 500 installed on the operation panel 324 on the platform 300, The microcomputer 520 receiving the signal of the switch 510 determines the rotational direction of the driving motor 430 to rotate the driving motor 430 in the reverse direction, for example, and simultaneously drives the driving motor 430. The speed is transmitted to the transfer shaft 410 after the speed changer 440 is changed, and the transfer shaft 410 is rotated, and the transfer body 420 coupled to the transfer shaft 410 is lowered along the transfer shaft during the operation. While descending in the direction, the lifting platform 300 to which the transfer member 420 is fixedly lowered downward.

At this time, the rotation roller 333 rotatably coupled to the end of the rotation bar 332 of the folding means 330 is pushed while being moved along the upper inclined portion 331a of the guide bar 331 and the rotation bar 332 is pushed. The safety plate 323 is pivoted about the hinge 323a to be folded from a horizontal position to a vertical position with respect to the loading plate 321 to prevent the wheelchair mounted on the loading plate 321 from being separated. When the lifting platform 300 approaches the appropriate lowering height, the rotation roller 333 is moved along the lower inclined portion 331a of the guide bar 331, and the rotation bar 332 is rotated about the hinge 323a. The safety plate 323 is unfolded from the vertical position to the horizontal position with respect to the loading plate 321 so that the wheelchair can exit from the loading plate 321.

In addition, when the lifting platform 300 lowered in the lower direction is lowered to the proper position, the sensing means 530 installed on the upper side of the support main body 100 detects this and applies the signal to the microcomputer 520, the signal The received microcomputer 520 stops the driving of the driving motor 430 and stops the platform 300 that has been lowered. For example, the above state, for example, the off state of the switch 510 or the driving of the driving motor 430. Whether or not the position of the platform 300 is displayed through the display means 540 installed on the operation panel 324.

As described above, the fixed coupling at the upper end of the base includes a support main body, a plurality of guide rails disposed vertically and fixedly coupled to an inner surface of the installation space of the support main body, and a lifting platform coupled to the guide rails so as to be transported vertically. Wheel chair lift device of the present invention comprising a lifting means for elevating the platform up and down, and a control means for controlling the elevating means is operated by a switch of the operation panel after the person with a disability who is uncomfortable to ride in a wheelchair. By allowing them to safely and conveniently move up and down to a desired height in a state of riding, it is effective for the convenience of the handicapped as well as for the elderly and the elderly to use them safely and conveniently.

Claims (8)

In the conventional wheelchair lift device, the support body 100 is fixedly coupled to the upper end of the base 600, the installation space 110 is formed in the front opening therein; A plurality of guide rails 200 which are disposed in parallel to the inner surface of the installation space 110 of the support body 100 and fixedly coupled thereto; It is coupled to the guide rail 200 so as to be transported up and down is installed for the safe loading of the wheelchair and on both ends and the back of the guide conveying bar 311 is fixed to the conveying body 420 of the lifting means 400 in the front The slide bar 312 to be transported along the guide rail 200 is vertically fixed, the guide roller 313 is rotatably coupled to both ends of the slide bar 312, the guide bar 311 The front and rear of the lifting frame 310 is coupled to the support bar 314 is fixed; The protective plate 322 is vertically fixed to the front and rear ends of the upper surface of the loading plate 321 fixedly coupled to the connection support bar 314, one side or both sides of the loading plate 321 to the folding means 330 Lifting platform 300 is configured to include a lifting plate 320 is coupled to the hinge 323a rotatably coupled to the safety plate 323; Both ends are rotatably coupled to the upper surface and the base 600 of the installation space 110 of the support main body 100 so as to elevate the lifting platform 300 up and down, and parallel to the guide rail 200. A feed shaft 410 having a threaded portion 411 formed at its periphery; The screw shaft 411 of the transfer shaft 410 is fastened to the transfer shaft 410 and fixedly coupled to the platform 300 so as to elevate the platform 300 according to the rotation of the transport shaft 410. A conveying member 420 having a screw portion 421 fastened therewith; Elevating means (400) configured to include a driving motor (430) driven according to an electrical signal to rotate the transfer shaft (410); Wheelchair lift device, characterized in that configured to include a control means for controlling the lifting means (400). delete delete delete According to claim 1, The folding means 330 is fixed to the outer side of the support body 100, the guide bar (331) formed with inclined portion (331a) at both ends; A rotation bar 332 fixedly coupled to the safety plate 323 and formed in an L shape; Wheelchair lift device, characterized in that configured to include a rotational roller 333 rotatably coupled to the end of the rotation bar (332) to be transported along the guide bar (331). delete The hydraulic cylinder 450 of claim 1, wherein the lifting means 400 is vertically fixed to an upper end of the base 600 so as to be parallel to the guide rail 200, and the piston 451 is transferred by hydraulic pressure. Wow; Hydraulic pressure generating means (460) for generating hydraulic pressure supplied to the hydraulic cylinder (450); Lifting driving bar is fixedly coupled to the piston 451 of the hydraulic cylinder 450, the guide roller 471 is rotatably coupled along the guide groove 210 of the guide rail 200 rotatably coupled to both ends ( 470); A driving chain 480 having both ends fixedly coupled to the elevating driving bar 470 and the elevating platform 300 so as to elevate the elevating platform 300 according to the transportation of the elevating driving bar 470; The drive chain 480 is a wheelchair lift device, characterized in that configured to include a pulley 490 fixedly coupled to the elevating drive bar (470) so as to pass through. According to claim 1, The lifting means 400 is a drive motor 430 is the drive shaft 431 is rotated in accordance with the electrical signal; Reducer 440 for outputting the driving force of the drive motor 430 is added and subtracted; A pulley 442 and a belt 443 for transmitting a driving force of the driving motor 430 to the reduction gear 440; A plurality of chain gears 481 rotatably coupled to the reducer 440 and the support body 100, respectively; A driving chain 480 that is hooked to the plurality of chain gears 481 to elevate and elevate the platform 300 according to the driving of the reducer 440, and both ends of which are fixedly coupled to the platform 300; Rotatingly coupled to the support body 100, the wheelchair lift device, characterized in that it comprises a stopper (482) to prevent the lifting platform 300 is raised or lowered above a specific position.