KR101382633B1 - Electric walking aid vehicle - Google Patents

Abstract

The present invention relates to an electric walking assistance vehicle driven by electric power.
To this end, the main wheel is coupled to the lower portion, the main frame is formed perpendicular to the ground and the handle is formed on the upper end; An auxiliary frame coupled in parallel to the ground from one lower side of the main frame and having a driven wheel mounted at one end thereof; A power unit formed under the main frame to provide electric power for driving the main wheel; And a control unit formed at one side of the handle to control driving and stopping of the power unit.
According to this, by applying the electric drive device can be easily used by users with weak energy, the speed can be adjusted even on the step or slope can walk without effort, it is convenient and easy to use and the safety can be guaranteed have.

Description

Electric walking assistance vehicle {ELECTRIC WALKING AID VEHICLE}

The present invention relates to an electric pedestrian assistance vehicle that can walk with a patient or elderly person unstable walking, and more particularly, can be driven by the electric power, so that it is easy to use and easy to cross over a slope or a barrier. The present invention relates to an electric pedestrian assistance vehicle capable of instantaneous rapid acceleration and maintaining a constant speed on an upward or downward slope.

In general, the walker is popular for patients or elderly people who are difficult to walk independently due to uncomfortable movement. In the most basic configuration, the steel pipe is bent to a suitable size and shape to produce a frame, and a handle is formed on the upper part.

Therefore, when the user moves forward, the walker lifts and moves forward, and then walks forward while relying on the body.

The improved walker is equipped with wheels on the lower part of the frame to make it easier to move when pushing forward or pulled, and a cushion on the upper part to provide a safe cushioning feeling when the body is relied on. have.

In addition, the conventional walker has been provided with an auxiliary chair so that the user can sit and relax.

Prior arts related to this have been disclosed in the Korean Registered Room No. 0362325 "Foldable Patient Walker."

Looking at the prior art briefly, since a separate chair is mounted on the walker, the patient can rest for a while, and the height of the chair can be adjusted freely so that the chair can be adjusted to the length of the patient's leg.

However, since the walker according to the prior art has to be pushed or pulled forward by the user's manpower, it is difficult to use a weak patient or the elderly.

In addition, the wheel is too small to go over the shallow step of the sidewalk block while walking, and people who are difficult to use the driving force to go over the shallow step, there was a problem that even easy to use.

And there was a risk that the speed is accelerated on the down ramp, it was too difficult to walk while pushing on the up ramp.

Korean Registered Room No. 0362325.

The present invention has been made to solve the above-mentioned problems of the prior art, by applying an electric drive device can be easily used by users with weak energy, can be walking without effort because the speed can be adjusted even in step or slope. An object of the present invention is to provide an electric pedestrian assistance vehicle that is very convenient, easy to use, and safety can be guaranteed.

The above object of the present invention, the main wheel is coupled to the lower wheel, is formed perpendicular to the ground and the handle is formed on the upper end; An auxiliary frame coupled in parallel to the ground from one lower side of the main frame and having a driven wheel mounted at one end thereof; A power unit formed under the main frame to provide electric power for driving the main wheel; It is formed on one side of the handle can be achieved by an electric pedestrian vehicle comprising a; control unit for controlling the driving and stop of the power unit.

The power unit is mounted on a bed formed at the lower end of the main frame and the first and second electric motors respectively connected to the main driving wheels; A battery pack for supplying power to the first and second electric motors; A charger for charging the battery pack; It characterized in that it comprises a motor controller for controlling the rotational force of the driving wheel by controlling the drive of the first and second electric motor.

The motor controller is characterized in that it comprises a tilt sensor unit to detect the inclination angle to control the increase or decrease of the rotational speed of the electric motor.

The main wheels are respectively coupled to the first and second electric motors, the first and second electric motors are connected to the first and second brake switches respectively connected to the hand brakes formed on the handles, respectively. And by the operation of the braking means connected to the second brake switch is characterized in that to enable individual braking for the first and second electric motor.

The main wheels are respectively coupled to the first and second electric motors, the first and second electric motors are connected to the first and second brake switches respectively connected to the hand brakes formed on the handles, respectively. And by the operation of the braking means connected to the second brake switch is characterized in that to enable individual braking for the first and second electric motor.

The main wheel is coupled to the drive shaft so as to be rotatable separately, the drive shaft is characterized in that the serration coupled to the shaft of the reducer connected to the first and second electric motor.

A middle part of the main frame includes a chair that a user can sit on, and the chair comprises: a chair frame coupled to the main frame and having a handle bar formed at an upper end thereof; And a lower plate coupled to the lower end of the chair frame and mounted horizontally to the main frame; and a saddle attached to the upper surface of the lower plate.

According to the present invention, by applying the electric drive device can be easily used even for users with weak energy, by applying the instantaneous acceleration mode has the effect that the torque and power is rapidly increased can be easily moved on the barrier or slope.

In addition, since the acceleration or deceleration is automatically performed by the inclination sensor on the downhill or hill road, it is possible to prevent the risk of an accident and to correct the speed.

In addition, since the individual braking of both the driving wheels and the first and second electric motors is possible, the turning radius is short, so that the turning operation can be performed quickly.

And when sitting on a chair, the braking state can be maintained by the operation of pulling the hand brake downward, so it is convenient to use and the brake operation is easy in the sitting state.

1 is a perspective view showing an electric walking assistance vehicle according to an embodiment of the present invention,
Figure 2 is a side view showing an electric walking assistance vehicle according to an embodiment of the present invention,
3 is a circuit diagram showing a main circuit configuration of an electric walker according to an embodiment of the present invention;
Figure 4 is a plan view showing a 'power unit' of the electric walking assistance vehicle according to an embodiment of the present invention,
5 is a plan view schematically showing a turning radius of the electric pedestrian assistance vehicle according to an embodiment of the present invention in comparison with the related art;
Figure 6 is a perspective view of the 'control unit' of the electric walking assistance vehicle according to an embodiment of the present invention.

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

In the accompanying drawings, Figure 1 is a perspective view of an electric walking aid vehicle according to an embodiment of the present invention, Figure 2 is a side view showing an electric walking assistance vehicle according to an embodiment of the present invention, Figure 3 is a view of the present invention 4 is a circuit diagram illustrating a main circuit configuration of an electric walker according to an embodiment of the present invention. FIG. 4 is a plan view showing a 'power unit' of the electric pedestrian assistance vehicle according to an embodiment of the present invention. FIG. 5 is an embodiment of the present invention. FIG. 6 is a plan view schematically showing the turning radius of the electric walker according to the related art, and FIG. 6 is a perspective view illustrating a 'control unit' of the electric walker according to an embodiment of the present invention.

As shown in FIGS. 1 to 6, the motorized walking assistance vehicle A according to an embodiment of the present invention includes a main frame 1, an auxiliary frame 2, a power unit 3, The control unit 4 is configured.

The main frame 1 is formed to be substantially perpendicular to the ground, the driving wheel 5 is coupled to the bottom, the handle 16 is formed at the upper end.

The cradle 10 is formed on the upper portion of the main frame 1 to mount the navigation or smartphone.

The auxiliary frame 2 is coupled in parallel to the ground from the lower one side of the main frame 1, the driven wheel 6 is mounted at one end.

The driven wheel 6 is a kind of caster coupled with a pin shaft to the auxiliary frame 2 to enable autonomous rotation.

The power unit 3 is formed under the main frame 1 to provide electric power for driving the main wheel 5.

The control unit 4 is formed on one side of the handle 16 to control the driving and stopping of the power unit (3).

Each structure mentioned above is demonstrated in detail.

The power unit 3 includes a bed (not shown) formed at the bottom of the main frame 1; First and second electric motors 341 and 342 seated on the bed and respectively connected to the both driving wheels 5; A battery pack 35 for supplying power to the first and second electric motors 341 and 342; A charger 36 for charging the battery pack 35; It comprises a motor controller 38 for controlling the rotational force of the driving wheel (5) by controlling the driving of the first and second electric motors (341, 342).

The charger 36 is usually supplied with AC220V power to charge the battery pack 35 so that power can be exerted for a predetermined time without an external power supply.

In addition, the inclination sensor unit 39 is attached to the motor controller 38 to detect the inclination angle and control the increase or the decrease of the rotation speed of the first and second electric motors 341 and 342.

Preferably, the inclination angle θ detected by the inclination sensor unit 39 is ± 10 to 13 °, and the inclination sensor unit 39 detects this when entering the inclined road to control the speed.

The tilt sensor 39 includes an upward tilt sensor 391 and an acceleration setting variable resistor R1 for detecting an upward angle, a downward tilt sensor 392 and a deceleration setting variable resistor R2 for detecting a downward angle. Is connected to 38.

An on / off button 41 of the controller to be described later; A momentary acceleration button 42; Forward and backward control switches 43; The speed control switch 44 is connected to the motor controller 38.

Accordingly, the speed is changed by the inclination sensor unit 39 and the acceleration and deceleration setting variable resistors R1 and R2.

Using the speed control volume (Min ↔ Max) to accelerate the acceleration and deceleration system by connecting the upper part in parallel with the center and accelerating the lower part in parallel.

The operation principle of the tilt sensor unit 39 is designed to operate in the same way by applying to a system connected in parallel to the variable resistors R1 and R2 so as to accelerate on the uphill and decelerate on the downhill.

The driving wheels 5 are respectively coupled to both ends of the bed formed at the lower end of the main frame 1, and each driving wheel 5 is coupled to the drive shaft 51 so as to be rotatable individually, and each drive shaft 51 is formed in a first manner. And a shaft 54 and a serration 52 of the reducer connected to the second electric motors 341 and 342.

Of course, besides serration bonds, spline bonds can be applied.

In addition, the driving wheel (5) preferably uses an alloy wheel (alloy wheel [Al 6061]) has a rigidity and excellent durability, it is formed in a somewhat larger diameter 30 ~ 40cm to provide a sense of stability during driving (movement) can do.

As shown in FIG. 3, the first and second electric motors 341 and 342 have first and second brake switches B1 and B2 respectively connected to the hand brakes 8 formed on the handle 16, respectively. Connected.

Accordingly, since braking of the first and second electric motors 341 and 342 is possible by the operation of the braking means connected to the first and second brake switches B1 and B2, as shown in FIG. In the present invention, the minimum turning radius can be realized by the independent brake control method.

On the other hand, as shown in (b) of FIG. 5, the conventional turning type drive (four-wheeled vehicle) has a large turning radius (rotation radius) distance at the time of rotation depending on the structure or characteristics of the product or speed. You lose.

On the contrary, the present invention has a turning radius close to 0 ° due to the driven wheel 5 and the driven wheel 6 capable of autonomous rotation, in which the braking means are individually operated.

That is, the turning radius can be minimized by manipulating the hand brake 8 in the direction to be rotated to exert an individual braking force to stop one electric motor and drive the other electric motor.

To this end, the driving wheel (5) is provided with first and second brake switches (B1, B2) which are turned on and off by pulling the wire when the lever of the hand brake (8) is operated. Braking means for providing a braking force by the brake switches B1 and B2 is provided.

In addition, the rear driven wheel 6 can minimize the turning radius by applying a caster system that is autonomously rotated.

Accordingly, when the first and second brake switches B1 and B2 are simultaneously turned on by pulling the levers of the hand brakes 8 on both sides, the brakes may be in a braking state.

In addition, by turning only one lever of the hand brakes 8 on both sides to allow only one of the first and second brake switches B1 and B2 to be turned on, the turning drive can be performed with a minimum turning radius.

The lever of the hand brake 8 is formed in a hook shape, and the first and second brake switches B1 and B2 are operated to be in a braking state during up and down rotation.

Therefore, the user grasps the handle 16 and pulls the levers of both hand brakes 8 upward while braking.

In addition, when the user rests on the chair 7, the braking state can be maintained by pulling the lever of the hand brake 8 downward.

Meanwhile, referring back to FIG. 1, a case 200 is mounted to cover the power unit 3, and a headlamp 210 and a fog lamp 220 are formed in the case 200. And the rear lamp 230 is formed at the rear end of the auxiliary frame (2).

The flashing of the headlamp 210, the fog lamp 220, and the taillight 230 is performed by the operation of the controller 4.

Meanwhile, the middle part of the main frame 1 is equipped with a chair 7 on which the user can sit.

The chair 7 is coupled to the main frame 1 and the "X" shape and the chair frame 72 is formed with a cushion bar 71 at the top; A lower plate 73 coupled to a lower end of the chair frame 72 and horizontally mounted to the main frame 1; The saddle 74 attached to the upper surface of the lower plate 73; is configured to include.

Therefore, if the user is hard while walking, the user can sit on the chair 7 and rest.

In addition, when it is necessary to maintain the braking state for safety while sitting on the chair 7, the first and second brake switches B1 and B2 are turned on to keep the braking state by pulling the lever of the hand brake 8 downward. Can be.

On the other hand, the electric walking assistance vehicle A according to the present invention can be implemented by the operation of the control unit 4, the forward, backward, rapid acceleration operation mode.

As shown in FIG. 6, the controller 4 includes a control panel 40 attached to one side of the handle 16; It consists of a plurality of operation mode switches formed on the control panel 40.

The plurality of operation mode switches include an on / off button (41); A momentary acceleration button 42; Forward and backward control switches 43; A speed control switch 44; It is comprised by the headlight switch 45, the fog light switch 46, and the tail light switch 47.

The instantaneous acceleration mode is an additional function that allows the momentary increase of torque and power so that it can be easily moved on a barrier or a slope.

Press the momentary acceleration button 42 in the form of a push button on the control panel 40 to perform a momentary acceleration operation, the momentary acceleration speed is set to increase by about 30% by a fixed ratio on the basis of the current moving speed.

Hereinafter, the operation of the present invention will be described.

When the on / off button 41 is pressed and operated once, the first and second electric motors 341 and 342 are simultaneously driven to move forward or backward.

At this time, the forward and reverse speed is adjusted by turning the speed control switch (44).

On the other hand, if you meet the bump while driving, because the momentary acceleration must be crossed over by pressing the momentary acceleration button 42 to momentarily accelerate.

When the instantaneous acceleration signal is given, the motor controller 38 speeds up the rotational speeds of the first and second electric motors 341 and 342 to produce the speed.

On the other hand, when the hill length or the downhill road while driving, the tilt sensor unit 39 transmits a detection signal for the inclination to the motor controller 38 by the operation of the first and the control of the motor controller 38 received this. The speeds of the second electric motors 341 and 342 are corrected.

That is, the downhill road decelerates the first and second electric motors 341 and 342, and the hill road accelerates the first and second electric motors 341 and 342.

On the other hand, when changing the direction, the handbrake 8 corresponding to the direction to be rotated is operated, and accordingly, any one of the first and second brake switches B1 and B2 is turned on to operate the corresponding first and second parts. As the electric motors 341 and 342 are stopped, the turning drive is possible with a minimum turning radius.

On the other hand, at night or on a cloudy day with poor visibility, the headlight switch 45, the fog light switch 46, the tail light switch 47 may be appropriately selected to turn on the headlight, the fog light, the tail light, and the safety may be further improved.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that the claims fall within the scope of the claims.

1: main frame 2: auxiliary frame
3; Power unit 4; The control unit
5: driving wheel 6: driven wheel
35: battery pack 36: charger
38: motor controller 39: inclination sensor
341: first electric motor 342: second electric motor
391 upward tilt sensor 392 downward tilt sensor
R1: Acceleration setting variable resistor R2: Deceleration setting variable resistor

Claims (7)

A main frame (1) coupled to the driving wheel (5) at a lower portion thereof, perpendicular to the ground, and having a handle (16) formed at an upper end thereof;
An auxiliary frame (2) coupled in parallel to the ground from one lower side of the main frame (1) and having a driven wheel (6) mounted at one end thereof;
A power unit (3) formed at a lower portion of the main frame (1) to provide electric power for driving the main wheel (5);
A control unit (4) formed at one side of the handle (16) to control driving and stopping of the power unit (3);
And,
The power unit 3 is
First and second electric motors 341 and 342 mounted on a bed formed at a lower end of the main frame 1 and respectively connected to both main driving wheels 5;
A battery pack 35 for supplying power to the first and second electric motors 341 and 342;
A charger 36 for charging the battery pack 35;
A motor controller 38 for controlling the rotational force of the driving wheel 5 by controlling the driving of the first and second electric motors 341 and 342;
And,
The motor controller 38 includes an inclination sensor unit 39 which detects an inclination angle and controls the increase or the decrease of the rotation speed of the first and second electric motors 341 and 342.
The inclination sensor unit 39,
An upward tilt sensor 391 and an acceleration setting variable resistor R1 for detecting an upward angle;
A downward inclination sensor 392 and a deceleration setting variable resistor R2 for detecting a downward angle;
Electric walking assistance vehicle comprising a. delete delete The method according to claim 1,
The main wheel 5 is coupled to the first and second electric motors 341,342, respectively,
The first and second electric motors 341 and 342 are connected to the first and second brake switches B1 and B2 which are respectively connected to the hand brakes 8 formed on the handle 16, respectively. An electric pedestrian assistance vehicle, characterized in that separate braking of the first and second electric motors (341,342) is enabled by the operation of the braking means connected to the brake switches (B1, B2). 5. The method of claim 4,
The driving wheel 5 is coupled to the drive shaft 51 so as to be rotatable separately, the drive shaft 51 is the shaft 54 and the serration 52 of the reduction gear connected to the first and second electric motors 341,342. Electric walking assistance vehicle, characterized in that coupled. 5. The method of claim 4,
The hand brake (8) is an electric pedestrian assistance vehicle, characterized in that the first and second brake switches (B1, B2) to be in a braking state when rotated up or down. The method according to claim 1,
The middle portion of the main frame 1 is to include a chair 7 which the user can sit,
The chair 7
A chair frame 72 coupled to the main frame 1 and having a cushion bar 71 formed thereon;
A lower plate 73 coupled to a lower end of the chair frame 72 and horizontally mounted to the main frame 1;
A saddle 74 attached to an upper surface of the lower plate 73;
Electric walking assistance vehicle comprising a.

Images