KR101491926B1 - Safety stair lift device for patients, disabled or toddler - Google Patents

Abstract

The present invention relates to multistage stairs. According to necessity, a safety stair lift device for patients, the disabled, or toddlers is proposed for the patients, the disabled, or the toddlers to conveniently use the stairs. The multistage stairs maintains a flat and horizontal plane as the steps automatically ascends and descends; thereby the patient, the disabled, or the toddlers can always move around conveniently and safely using the multistage stairs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety stair lift device for a patient,

More particularly, the present invention relates to a step-and-staple lifting device, and more particularly, to a stair-step lift device which is capable of automatically raising a stepped staircase formed in a multistage shape to achieve a flat horizontal surface state, The safety stair lift device for the patient, the handicapped or the infant to allow the stairs to be moved up and down.

As is well known, the stairs are made up of a building or a slab, which is made up of a building or a slope, to be raised or lowered by a person, and a vertical wall plate and a horizontal plate are repeatedly formed. In the tread plate, Is fixed to the front end face or the upper face, and a rail with a railing handle is formed at the side end to prevent the passenger from falling.

However, the stairs of such a structure have a problem that the handicapped person with a wheelchair or an infant with a small stride can not pass through, which is inconvenient for a disabled person or an infant.

In order to solve such a problem, an elevator is provided around the stairs in the building separately from the stairs to induce the elderly or the disabled to use the elevator. However, there is a disadvantage in that a financial burden is incurred, , There is a problem that an elevator can not be used as a place to evacuate in an emergency such as a fire.

In order to solve these problems, Patent Documents 1 to 4 are presented below. For example, Patent Document 1 proposes a constructional staircase structure for a disabled person and an infant.

The constructional staircase structure for the disabled and the infant includes a fixed railing frame fixed to the stair rail by fixing the stair stair plate to the hanger, Wherein the fixed railed frame is formed with a railing support, which is a rectangular tube fixed to the railing of the stairway, and the lower end is formed with a horizontal surface and a ladder And a fastening ring having upper and lower insertion bars projecting obliquely to the right and left sides in accordance with the inclination of the stairs at an intermediate portion of the railing support and at an upper portion thereof, And the upper and lower insertion bars are fixedly connected to each other by means of interference fingers, And a vertical insertion bar extending downward is formed at a lower end of the engaging bent portion, and a pulling lever is provided at an outer side of the upper end portion of the elastic fixing bar, And a fixed cap is fixedly mounted on the upper end of the railing support to prevent the release of the spring while raising and lowering the elastic fixing bar; Wherein the inclined step plate is a plate having a plurality of perforations and is fixed on the upper surface of the step, and has a connecting bar which is fastened and fixed in accordance with the degree of inclination of the step on the railing support of the fixed parapet, And the other end is fixed to the body to form a hinge for rotating the body. When the vertical fixing bar is vertically stored by the hinge, an insertion fixing groove into which the vertical insertion bar of the elastic fixing bar is inserted is formed in the inner front end surface, And has a knob groove and is seated and fixed by its own weight on the upper surface of the step by a hinge as necessary.

However, the constructional staircase structure for the handicapped and infant presented in the above-described Patent Document 1 has the following problems.

The slope stair plate is rotated at the railing when necessary so that the wheelchair and the infant aboard the wheelchair can easily ascend and descend the staircase. However, the inclination of the slope staircase can slide the wheelchair and the infant, There is a problem that you have to hold the handrail with a great force in order not to slip when getting off, and there is a force in the ankle part. In addition, since the bottom surface of the inclined step plate is supported at the corner of the step, warpage of the inclined step plate occurs and the cosmetic is not good.

Registered Patent Publication No. 10-0883313 (Title: Structural staircase structure for handicapped persons and infants) Date of announcement: Feb. 11, 2009 Patent Document 1: Registration No. 10-1220161 (Title of the invention: Moving method of a hybrid assistant and a hybrid assistant for a disabled person and a baby using the same) Published date: May 25, 2012 Registered Patent Publication No. 10-0937044 (Title of the Invention: Architectural Safety Stair Device for Patients, Disabled Persons or Infants) Date of Publication: January 15, 2010 Registered Patent Publication No. 10-0648887 (Title of the invention: Railing structure of a building safety stair for a visually impaired person. Date of announcement: November 24, 2006)

The present invention provides a patient with uncomfortable mobility by automatically raising the steps formed in a multistage shape to form a flat horizontal surface. It is an object of the present invention to provide a safety stair lift device for a patient, a disabled person or an infant, which enables a disabled person or a small infant to conveniently and safely ascend and descend a staircase.

The present invention relates to a safety stair lift device for a patient, a disabled person or an infant, which enables a stairway installed in a multistage shape to maintain a flat horizontal surface while rising as needed, comprising: a driving motor; A plurality of sprockets and chains for receiving a driving force from the driving motor; A plurality of drive shafts installed on the respective sprockets to receive driving force; A screw shaft connected to the drive shaft and installed on both sides thereof and having threads formed in opposite directions along an outer circumferential surface thereof; A rotating body assembled to each of the screw shafts and threaded along the inner circumferential surface so as to rotate with the screw shaft; A plurality of rotating bars that move in conjunction with the operation of the rotating body, rollers mounted on both ends thereof, and move up / down about a hinge axis; The driving shaft, the screw shaft, the rotating body, and the rotating bar are individually provided at the respective steps, and the stepped portions of the drive shaft, the screw shaft, the rotating body, and the rotating bar are stepped up or down by receiving the driving force of the driving motor.

In the present invention, when a disabled person or an elderly person uses a stairway to move up or down a stairway using a movement assist device such as a wheelchair or a baby carriage, or when an infant (child) So that the patient, the disabled, and the infant can be moved safely, easily, and conveniently through the steps.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing the configuration of a safety stair lift device for a patient, a disabled person or a child according to a preferred embodiment of the present invention; FIG.
Fig. 2 is a plan view showing the configuration of the safety stair lift device shown in Fig. 1 for a patient, a disabled person or an infant. Fig.
Fig. 3 is a side view showing the configuration of the safety stair lift device shown in Fig. 1 for a patient, a disabled person or an infant. Fig.
Fig. 4 is a block diagram showing the configuration of a safety stair lift device for a patient, a disabled person or a child shown in Fig. 1. Fig.
5 is a flow chart illustrating the operational status of a safety stair lift device for a patient, a disabled person, or an infant according to the present invention.
6A to 6C are schematic views showing the operational states of a safety stair lift apparatus for a patient, a disabled person or a child according to the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

In the present invention, a plurality of steps are automatically raised or lowered so that a step formed in a multi-stage shape is used as needed, preferably a patient, a disabled person or an infant can conveniently use the step, And to implement a safety stair lift device for the patient, the handicapped or the infant to be able to move safely through the stairs.

To this end, in the present invention, lifting means are provided at a plurality of steps constituted in a multi-stage shape. Specifically, it is preferable to provide lifting means so that each step can be raised or lowered individually.

The lifting means operates as one driving motor, and the driving force of the driving motor is transmitted to a lifting means provided at each step by a plurality of sprockets and a chain. In other words, a rotary bar is installed in a cross shape in each of the steps, and the rotary bar is operated up and down by a connecting shaft, a screw shaft and a rotating body, to which the driving force of the driving motor is transmitted. Further, the lifting means is provided with a separate electromagnetic clutch for interrupting the ascending or descending operation of each step. More specifically, a driving shaft is installed on a screw shaft provided on each of the stairs, an electromagnetic clutch is provided on the driving shaft, And the step is raised or lowered step by step according to the operation of the electromagnetic clutch. This operation will be described concretely by the first embodiment which will be described later.

In the lifting means of the present invention, the range of movement of the up / down movement is set by the plurality of roller sensors, the descent sensor and the ascension sensor, which will be described in detail in Embodiment 1 described below.

As described above, the lifting means of the present invention serves to move the stairs in a horizontal direction by moving the stairs up / down step by step, and the technical structure for performing such operations, for example, sprocket, drive shaft, , The rotating body, the connecting shaft, the hinge shaft, the rotating bar, the roller, the guide rail, and the like are provided equally in each step.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention, but the present invention is not limited thereto.

{Example 1}

1 to 4 are views showing a configuration of a safety stair lift device for a patient, a disabled person or a child according to a preferred embodiment of the present invention.

The safety stair lift apparatus according to the present invention is installed in a multi-stage staircase. For example, as shown in FIG. 1, the safety stair lift apparatus is installed at the bottom of the stairs 100, 200 and 300, respectively. In addition, a touch screen type display unit 400 and an alarm light 500 are installed at the start and end points of the steps 100, 200, and 300, respectively. At this time, the display unit 400 is provided with an operation switch 400a for controlling the operation of the lifting means provided to the steps 100, 200, and 300, specifically, for switching the operation of the driving motor 10. [ The hinge shafts 32, 56 and 78 are installed at the central portions of the rotary bars 34, 58 and 80, respectively. The hinge shafts 32, Rotating bars 34, 58 and 80 are installed in a cross shape around the hinge shafts 32, 56 and 78, respectively.

Hereinafter, the technical configuration of the safety step-and-step lift apparatus according to the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

The above-described drive motor 10 is turned on / off according to the switching of the operation switch 400a, and the sprocket 12 is assembled to the axis of the drive motor 10 as shown in FIG. A chain 14 is connected to the sprocket 12, and the chain 14 is connected to another sprocket 16. Another chain 40 is connected to the sprocket 18 formed integrally with the sprocket 16, and the chain 40 is connected to the sprocket 42. A chain 64 is connected to a sprocket 44 integrally formed with the sprocket 42, and the chain 64 is connected to a sprocket 66.

In accordance with the power transmission means thus configured, the safety step-lift device of the present invention performs an operation of raising or lowering the stairs 100, 200, 300. In conjunction with the power transmission means, the stairs 100, 200, The technical constructions for operating the stairs 100, 200 and 300 are respectively installed on the bottom and both sides of the stairs 100, 200 and 300, respectively.

1. Technical configuration to raise or lower stair 100

Sprockets 16 and 18 provided at one side of the step 100 (right side in FIG. 2) are formed as one body, a drive shaft 22 is assembled in the center, and a bearing 20 is mounted therebetween. An electromagnetic clutch 24 is provided on the outer peripheral surface of the drive shaft 22, and the electromagnetic clutch 24 serves to stop or rotate the rotation of the drive shaft 22 in accordance with the control operation of the control unit 600 shown in FIG. A screw shaft 26 is provided at one end of the drive shaft 22, and the screw shaft 26 receives driving force from the drive shaft 22 and rotates. At this time, the drive shaft 22 and the screw shaft 26 may be integrally formed.

The screw shaft 26 is installed to face the both sides as shown in FIG. 2, and a connecting shaft 30 is installed therebetween. This configuration is for the above-described rotation bar 34 to move up and down. A rotating body 28 is assembled to one end of a screw shaft 26 connected to both sides of the connecting shaft 30, and the rotating body 28 is threaded on the inner circumferential surface so as to be engaged with the screw shaft 26. At this time, the screw shafts 26 disposed on both sides are threaded in opposite directions, and the rotating body 28 assembled with the screw shaft 26 is also formed with threads in opposite directions. Accordingly, as the screw shaft 26 rotates, the rotating body 28 moves toward the connection shaft 30.

As shown in FIGS. 1 and 2, on both sides of the position where the rotary body 28 is located, a rotary bar 34 is installed around the hinge shaft 32, and the rotary body 28 is rotated in the left / right direction The left / right direction), the rotary bar 34 moves up and down about the hinge axis 32. [0051] At this time, in order to allow the rotary bar 34 to move up and down naturally, rollers 36 are assembled to both ends of the rotary bar 34 as shown in FIGS. 1 and 2, respectively, and the rollers 36 are moved along the guide rails 38 . This operation will be easily understood by the detailed description of FIG. 5 and FIGS. 6A to 6C to be described later.

2. Technical configuration of raising or lowering stair 200

The sprockets 42 and 44 provided at one end of the step 200 (refer to the right end in FIG. 2) are made of one body, the drive shaft 48 is assembled in the center, and the bearings 46 are mounted therebetween. An electromagnetic clutch 49 is provided on the outer circumferential surface of the drive shaft 48. The electromagnetic clutch 49 serves to stop or rotate the rotation of the drive shaft 48 according to a control operation of the control unit 600. [ A screw shaft 50 is provided at one end of the drive shaft 48, and the screw shaft 50 receives driving force from the drive shaft 48 and rotates. At this time, the drive shaft 48 and the screw shaft 50 may be integrally formed.

The screw shaft 50 is installed to face the both sides as shown in FIG. 2, and a connecting shaft 54 is installed therebetween. This configuration is for allowing the above-described rotation bar 58 to move up and down. A rotating body 52 is assembled to one end of a screw shaft 50 connected to both sides of the connecting shaft 54, and the rotating body 52 is formed with threads on the inner circumferential surface so as to be engaged with the screw shaft 50. At this time, the screw shafts 50 arranged on both sides are formed with threads in opposite directions, and the rotors 52 assembled with the screw shaft 50 are also formed with threads in opposite directions. Accordingly, as the screw shaft 50 rotates, the rotating body 52 moves to the connection shaft 54 side.

As shown in FIGS. 1 and 2, the rotary bar 58 is installed around the hinge shaft 56 at both sides of the point where the rotary body 52 is located. The rotary body 52 is rotated in the left / right direction Right direction), the rotation bar 58 moves upward and downward about the hinge shaft 56. The rotation bar 58 moves up and down with respect to the hinge shaft 56 as shown in FIG. In order to allow the rotary bar 58 to move up and down naturally, the rollers 60 are assembled to both ends of the rotary bar 58 as shown in FIGS. 1 and 2. The roller 60 moves along the guide rail 62, A rotary bar 58 can be raised or lowered around the hinge shaft 56. [

3. Technical configuration to raise or lower stairs 300

A drive shaft 70 is assembled to the center of a sprocket 66 provided at one end of the step 300 (right side in FIG. 2), and a bearing 68 is mounted therebetween. The electromagnetic clutch 71 serves to stop or rotate the rotation of the drive shaft 70 according to a control operation of the control unit 600. A screw shaft 72 is provided at one end of the drive shaft 70, and the screw shaft 72 receives driving force from the drive shaft 70 and rotates. At this time, the drive shaft 70 and the screw shaft 72 may be integrally formed.

The screw shaft 72 is installed to face the both sides as shown in FIG. 2, and a connection shaft 76 is provided therebetween. This configuration is for the above-described rotation bar 80 to move up and down. A rotating body 74 is assembled to one end of a screw shaft 72 connected to both sides of the connecting shaft 76, and a screw thread is formed on the inner circumferential surface of the rotating body 74 so as to be engaged with the screw shaft 72. At this time, the screw shafts 72 disposed on both sides are formed in opposite directions, and the rotating body 74 assembled with the screw shaft 72 is also formed with threads in opposite directions. Accordingly, as the screw shaft 72 rotates, the rotating body 74 moves to the connection shaft 76 side.

As shown in FIGS. 1 and 2, the rotary bar 80 is installed around the hinge shaft 78 at both sides of the point where the rotary body 74 is positioned. The rotary body 74 is rotated in the left / right direction Right direction), the rotary bar 80 moves upward and downward about the hinge axis 78. In this case, as shown in FIG. In order to allow the rotary bar 80 to naturally move upward and downward, the rollers 82 are assembled to both ends of the rotary bar 80 as shown in FIGS. 1 and 2. The roller 82 moves along the guide rail 84, A rotary bar 80 can be raised or lowered around the hinge shaft 78. [

As shown in FIG. 1, roller sensors 90, 92 and 94 are mounted on the respective centers of the rollers 36, 60 and 82. When the roller sensors 90, 92 and 94 are close to each other, , 49, and 71 to control the driving force transmitted to the drive shafts 22, 48, and 70, respectively. 4, the control unit 600 controls the operation of the electromagnetic clutches 24, 49, and 71 in response to a sensing signal transmitted from the falling sensor 96 and the rising sensor 98 .

Hereinafter, the operational state of the safety step-and-step lift apparatus for a patient, a disabled person or an infant according to the present invention constructed as described above will be described in detail with reference to FIGS. 5 and 6A to 6C. Hereinafter, the present invention will be described with reference to FIGS.

First, as shown in FIG. 6A, when the disabled person wants to climb the stairs 100, 200, and 300, he switches on the operation switch 400a built in the touch screen type display unit 400 shown in FIG. That is, as shown in FIG. 5, when the operation switch 400a is turned on in step S1, the controller 600 determines whether a sensing signal is inputted from the falling sensor 96 in step S2.

1 and 2, when the operating switch 400a is turned on, the driving motor 10 generates a driving force, and the driving force is transmitted to the sprockets 12, 16, 18, 42, 44, 66 and And is transmitted to the drive shafts 22, 48 and 70 by the chains 14, 40 and 64, respectively. Subsequently, the screw shafts 26 and 50 connected to the driving shafts 22 and 48 rotate, respectively, so that the rotors 28 and 52 move away from the connecting shafts 30 and 54 along the threads of the screw shafts 26 and 50. That is, the rotating bodies 28 and 52 move outward as shown in FIG. At this time, the drive shaft 70 is stopped by the intermittent rotation of the electromagnetic clutch 71, so that the step 300 maintains its initial state as shown in FIGS. 6A and 6B. Here, the electromagnetic clutch 71 interrupts the drive shaft 70 because the roller sensor 94 attached to the center of the roller 82 is close to the fall detection sensor 96, so that the fall detection sensor 96 transmits a detection signal to the control unit 600, The control unit 600 operates the electromagnetic clutch 71 in response to the detection signal, so that the electromagnetic clutch 71 interrupts the driving force of the driving shaft 70.

2 by the driving force transmitted from the driving shafts 22 and 48. Accordingly, the rollers 36 and 60 assembled at both ends of the rotating bars 34 and 58 are rotated in the opposite directions 2, and the roller sensors 90 and 92 mounted on the center of the rollers 36 and 60 sequentially approach the descent sensor 96, the descent sensor 96 outputs a detection signal to the controller 600 . Then, the control unit 600 operates the electromagnetic clutches 24 and 49 so that the electromagnetic clutches 24 and 49 intermittently drive the driving shafts 22 and 48. Thus, as shown in FIG. 6B, the steps 100 and 200 are maintained in a planar state with the step 300.

If it is determined that the sensing signal is inputted from the falling sensor 96 in step S2 shown in FIG. 5, the controller 600 descends the steps 100 and 200 in step S3 to maintain the planar state with the step 300 as described above . Then, as shown in FIG. 6B, when the steps 100, 200, and 300 are maintained in a planar state, the disabled person moves forward along the steps 100, 200, and 300 in a planar state as shown in FIG. 6C.

On the other hand, if it is determined in step S2 that the detection signal is not inputted from the falling sensor 96, the controller 600 performs step S4. In this case, the step S4 may be in various forms. For example, when the disabled person moves through a stepped state as shown in FIG. 6C, the steps 100, 200, and 300 return to their original state, 92, 94 and the elevation sensor 98, which are mounted at the center of the elevation sensors 60, 82, respectively.

That is, in step S4, the controller 600 determines whether a detection signal is inputted from the rising sensor 98. Preferably, the roller sensors 90, 92, and 94 are operated by the rollers 36, 60, The rising sensor 98 sequentially transmits a detection signal to the controller 600. The controller 600 controls the electromagnetic clutches 24, 49, and 71 in a stepwise manner so that the driving force transmitted from the driving motor 10 is sequentially interrupted . As a result, the stairs 100, 200, and 300 are maintained in the initial state as shown in FIG. 6A.

10: drive motor 22, 48, 70:
24, 49, 71: electromagnetic clutches 26, 50, 72:
28, 52, 74: rotating body 30, 54, 76: connecting shaft
32, 56, 78: a hinge shaft 34, 58, 80: a rotating bar
36, 60, 82: rollers 38, 62, 84: guide rails
90, 92, 94: Roller sensor 96: Falling sensor
98: elevation sensor 100, 200, 300: stairs

Claims (2)

A safety stair lift apparatus for a patient, a disabled person or an infant, in which a staircase installed in a multi-stage shape can maintain a flat horizontal surface state while rising as needed,
A drive motor;
A plurality of sprockets and chains for receiving a driving force from the driving motor;
A plurality of drive shafts installed on the respective sprockets to receive driving force;
A screw shaft connected to the drive shaft and installed on both sides thereof and having threads formed in opposite directions along an outer circumferential surface thereof;
A rotating body assembled to each of the screw shafts and threaded along the inner circumferential surface so as to rotate with the screw shaft;
A plurality of rotating bars that move in conjunction with the operation of the rotating body, rollers mounted on both ends thereof, and move up / down about a hinge axis;
The driving shaft, the screw shaft, the rotating body, and the rotary bar are individually provided at the respective steps, and the driving force of the driving motor is received to stepwise raise or lower the respective steps. Safety stair lift equipment for. The method according to claim 1,
Wherein the plurality of driving shafts are provided with an electromagnetic clutch for interrupting the driving force of the driving motor.

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