KR100854307B1 - Position adjusting device for electric wheelchair - Google Patents

Abstract

The present invention relates to a position adjusting device of the adjuster mounted on the electric wheelchair.

The present invention, as well as automatically adjust the position of the adjuster by the motor, as well as to prevent the shaking of the adjuster in the position adjustment is made, and also to adjust the adjuster up and down freely to effectively cope with obstacle interference. Of course, it is possible to freely adjust the development length in the front, that is, the longitudinal direction while improving the ease of use.

Electric Wheelchair, Regulator, Positioning Device, Motor, Rotary Link, Joint Link

Description

Positioning System for Power Wheelchair {positioning system of controls for power chairs}

1 is a perspective view of the adjuster position adjusting device in an embodiment of the present invention.

Figure 2 is a plan view showing a state before deployment of the adjuster position adjusting device in an embodiment of the present invention.

Figure 3 is a plan view showing a state after deployment of the adjuster position adjusting device in an embodiment of the present invention.

4 is a cross-sectional view taken along the line A-A of FIG. 3 in an embodiment of the present invention.

5 is a state in which the regulator position adjusting device is applied to the electric wheelchair in an embodiment of the present invention.

Figure 6 is a perspective view of a state in which the joint link to adjust the adjuster to the height and the upper and lower deployment angle in a flow frame in another embodiment of the present invention.

7 is a sectional view of FIG. 6 as another embodiment of the present invention.

Figure 8 is a shake preventing structure of the adjuster position adjusting device made of a manual in another embodiment of the present invention.

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

10; Fixed frame 20; Floating frame

21; First frame 22; 2nd frame

22a; Bracket 23; Regulator

30; Rotary link 31; Hinge shaft

40; Motor 41; driving axle

50; Switch 60; Magnet part

71; Angle adjusting groove 80; Joint link

81; Rocking ball 82; spring

90; Rotating bracket 100; Handrail

200; Regulator 200a; Operation handle

The present invention relates to an apparatus for adjusting the position of an adjuster mounted on an electric wheelchair, and more particularly, to a controller for an electric wheelchair that can prevent interference with external objects while adjusting the position of the manipulator to a position suitable for a user to adjust. It relates to a position adjusting device.

In general, an electric wheel chair that is electrically driven to move to a desired place is widely used. Such an electric wheel chair is provided with a manipulator on the left or right side of a seat that is easy for the user to operate, and a lever mounted on the manipulator. By operating the wheelchair is configured to move in the desired direction.

However, the remote control provided in the wheelchair can not easily adjust its position was a lot of inconvenience in use.

That is, the manipulator is used by the handicapped, the manipulator can be easily operated only when the manipulator is set in the most comfortable and easy to operate position, but the conventional manipulator has many limitations in adjusting the position according to the user's state.

In addition, the remote controller is projected forward when in use, so when working at the desk or working on the computer, the projected controller hits other objects, so interference occurs, but at this time, the remote controller must be backwards, but the conventional controller The operation was inconvenient and also inconvenient because it could not be done in one operation.

Therefore, in the related art, when the position of the controller is displaced, it is fixed to the original position by magnetic force, so that the position adjusting device (registration utility model No. 377933, hereinafter prior art) of an electric wheel chair adjuster which simply adjusts the position of the controller in one operation is disclosed. It became.

That is, the above prior art connects the fixed bracket attached to the body of the wheelchair and the fixed bracket attached to the manipulator with two levers, and combines both ends of the lever with the flow shaft, and a magnet on the flow shaft coupled to the manipulator bracket. Combining the sieve, it is configured by the locking projection on one side of the upper surface of the fixing bracket.

However, the above-described prior art has a disadvantage in that the positional displacement of the adjuster is adjusted in a manual manner by pushing and pulling by the user, and therefore a considerable force is required for the positional displacement.

That is, the above prior art is a structure that protrudes forward when the rotation is made while drawing a predetermined trajectory using the connecting lever, the force to overcome the magnetic force when the regulator returns to the original position under the interference of the obstacle There was a significant inconvenience in making the adjustments, such that the regulator could only be returned to its original position.

In addition, the prior art does not add a function to prevent shaking of the adjuster when the positional displacement of the adjuster is adjusted, and also does not add the vertical angle and length adjustment of the adjuster, so that the position adjustment to the adjuster is limited to the front only. As a result, the use was inconvenient.

Accordingly, an object of the present invention is to provide an adjuster position adjusting device for an electric wheel chair that is made to solve the above-mentioned conventional problems, and to automatically adjust the position of the adjuster by a motor.

In addition, another object of the present invention is to adjust the adjuster freely up and down to effectively cope with obstacle interference.

It is another object of the present invention to improve the ease of use while allowing the adjuster to freely adjust its deployment length in the front, ie, longitudinal direction.

In addition, the present invention is to provide a position adjusting device for an electric wheel chair that can be made to adjust the position of the adjuster manually, as well as to prevent the shaking of the adjuster in the state of the adjustment is made another object. .

Adjusting device position adjustment device for an electric wheelchair for achieving the above object is a fixed frame attached to the armrest body of the wheelchair; A flow frame which is separately installed outside the fixed frame and having an adjuster attached to a front end thereof; A plurality of rotary links connected to the fixed frame and the flow frame at both ends by a hinge axis to guide position adjustment of the flow frame; A motor provided at one end of the fixed frame and connected to a hinge shaft and a drive shaft of one of the rotary links to drive the position of the flow frame to which the adjuster is automatically adjusted; And a switch provided at the other end of the fixed frame and controlling the driving of the motor. It includes.

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

Figure 1 is a perspective view of the adjuster position adjusting device in an embodiment of the present invention, Figure 2 is a plan view showing a state before deployment of the adjuster position adjusting device in an embodiment of the present invention, Figure 3 is an embodiment of the present invention adjuster Figure 4 is a plan view showing a state after the deployment of the position adjusting device, Figure 4 is a cross-sectional view taken along line AA for Figure 3 as an embodiment of the present invention, Figure 5 is a state diagram of the position adjusting device is applied to the electric wheelchair in an embodiment of the present invention to be.

1 to 5, the adjuster position adjusting device for an electric wheelchair according to an embodiment of the present invention is fixed frame 10, the flow frame 20, the rotary link 30, the motor 40, and the motor drive And a switch 50.

The fixed frame 10 is fixed to the armrest body 100 of the wheelchair, the end of the motor 40 is fixed, the other end is the motor drive switch 50 is formed.

The flow frame 20 is the adjuster 200 is attached to the front end, which is connected to the fixed frame 10 through the rotary link 30, the horizontal movement in accordance with the expansion and folding operation of the rotary link 30 It does not protrude forward in this way, it is configured to be deployed or received at the side of the fixed frame 10, and comprises a first and second frames (21) 22 and the adjuster (23).

The first frame 21 is connected to the fixed frame 10 through the rotary link 30 is configured to be deployed in such a way that the horizontal movement is made in accordance with the expansion of the rotary link 30, the first inside The frame part of the longitudinal direction is hold | maintained so that 2 frames 22 may be inserted.

The second frame 22 is provided with a bracket 22a for attaching the adjuster 200 to one end of the second frame 22, and is linearly moved along the length direction in a state accommodated in the space part of the first frame 21. It is configured to be deployed or received operation.

The adjuster 23 fixes the position when the second frame 22 is received or expanded from the first frame 21, and passes through the first frame 21 to the second frame 22. It is configured to be tightened / loosened operation.

The rotary link 30 is connected to the fixed frame 10 and the first frame 21 of the flow frame 20 by both ends of the hinge shaft 31 of the bolt and nut method, depending on whether the first One frame 21 is configured to guide the position adjustment by the horizontal movement, one end of the hinge shaft 31 of any one of the rotary link 30 is connected to the drive shaft 41 of the motor 40 do.

The motor 40 is to be received and fixed to the storage space provided at one end of the fixed frame 10, the drive shaft 41 is connected to one of the hinge shaft 31 of any one of the rotary link (30). Thus, when the rotation of the drive shaft 41 is made from the drive of the motor 40, it is configured to rotate or rotate the rotary link 30 to perform the deployment or receiving operation.

The motor driving switch 50 is provided at the other end of the fixed frame 10, and configured to control the on / off of driving of the motor 40. The power is supplied to 40, and the power supplied is not shown but is mounted on the electric wheelchair as a battery of charge / discharge type.

Hereinafter, reference numeral 200 denotes an adjuster for driving the electric wheelchair, and reference numeral 200a shows an operation handle of the adjuster 200, respectively.

Referring to Figures 1 to 5 attached to the operation according to the embodiment of the present invention configured as described above are as follows.

First, as the user sits in the electric wheelchair to operate the operation handle (200a) of the manipulator 200, the wheelchair wheel is automatically driven to use in the usual way while moving in the desired direction.

At this time, the user to turn on the motor drive switch 50 in the fixed frame 10 to adjust to a comfortable position to use the adjuster 200 is fixed to the armrest body 100 of the electric wheelchair.

Then, power is supplied to the motor 40 electrically connected to the motor driving switch 50 to drive the motor 40, and thus the motor shaft 40 is connected to the drive shaft 41 of the motor 40. One rotary link 30 to which the hinge shaft 31 is connected is extended outward to rotate the first frame 21 of the flow frame 20 connected to the other end of the rotary link 30 in a horizontal direction.

In other words, the drive shaft 41 is installed to be connected to any one of the hinge shaft 31 of the rotary link 30 made of a fastening of the bolt and nut to the first frame 21 of the flow frame 20, Therefore, when the motor shaft 40 is rotated, the selected hinge shaft 31 of the rotary link 30 connected thereto is rotated to operate the rotary links 30 in the extended position or the folded position. When the drive shaft 41 rotates in the clockwise direction, the rotating link 30 is unfolded and the first frame 21 of the floating frame 20 connected to the rotating link 30 is the fixed frame 10. When the drive shaft 41 is rotated counterclockwise in such a deployment state, the rotating link 30 is folded and the floating frame 20 is connected to the rotating link 30. The first frame 21 is the fixed frame (1) Close to 0).
In addition, another rotary link 30 is also rotatably connected to the fixed frame 10 and the first frame 21 of the flow frame 20 through a hinge shaft 31 formed by fastening bolts and nuts. .

The first frame 21 of the floating frame 20 automatically rotates to the side of the fixed frame 10 while drawing a rotational trajectory in a horizontal manner through the plurality of rotary links 30. Will be implemented.

Here, the moving direction of the deployment operation of the first frame 21 is in close contact with the side of the fixed frame 10, drawing a rotational trajectory of the reverse so as not to be interfered by the obstacle, and thus the user is in contact with the flow frame ( The adjuster 200 fixed to the bracket 22a of the second frame 22 included in 20 may be used more comfortably.

In addition, when there is no obstacle in front of the electric wheelchair, and the user wants to protrude the position of the adjuster 200 in front of the electric wheelchair, the user is located on the bottom of the first frame 21 of the flow frame 20 (23) is rotated in the direction of release.

Then, the second frame 22, which is prevented from flowing by the control opening 33, can be slidably moved in the longitudinal direction from the release of the control opening 23, so that the second frame 22 is desired. The protruding length of the adjuster 200 is set by varying the length by the length.

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Then, when the tightening operation to prevent the second frame 22 from flowing again through the adjusting device 33, the adjuster 200 fixed to the bracket 22a of the second frame 22 is desired by the user. As long as the length of the protrusion is made to remain firmly fixed.

On the other hand, Figure 6, 7 is another embodiment of the present invention, which is to adjust the height of the adjuster 200 in the vertical direction, for this purpose, the second frame 22 has a curved surface at the end In the state coupled to the first coupling portion 70 provided with the first angle adjusting groove portion 71 of the multi-stage on the curved surface,

The second coupling part 90 in which the square pipe 22 'extending from the bracket 22a to which the adjuster 200 is coupled is provided with the second angle adjusting groove part 91 of the multi-stage in the curved surface while the curved surface is placed. ),

The first and second coupling parts 70 and 90 having the first and second angle adjusting grooves 71 and 91 are connected to each other through the joint link 80 by the hinge shaft 31, and the joint link ( 80) to adjust the height and the up and down deployment angle of the adjuster 200,

The joint link 80 is inserted into any one of the plurality of first and second angle adjustment grooves 71 and 91 to lock the ball 81 and the fixed position of the height and the up and down deployment angle of the adjuster 200 and The locking part including the spring 82 is comprised.

That is, another embodiment of the present invention, as shown in Figures 6 and 7 attached, the second coupling portion 90 is fixed to the adjuster 200 side through the articulation link 80, the height of course, as well as The up and down unfolding angle can be adjusted freely.

At this time, the height and height of the upper and lower deployment angle adjusted as described above, the locking ball 81, which is a locking part configured in the joint link 80, the first and second coupling parts 70 (by the elastic force of the spring 82) ( 90 is inserted into the first and second angle adjusting grooves 71 and 91 of the curved surface provided at the front end portion thereof to be firmly fixed.

Here, the first and second coupling parts 70 and 90, which are fitted to the square pipe 22 ′ of the second frame 22 and the bracket 22a, are formed by pins 72 and 92. Fixation was made.

On the other hand, Figure 8 is another embodiment of the present invention, which is a structure for manually adjusting the position of the adjuster 200, the first frame 21 of the flow frame 20 to the side of the fixed frame 10 When the operation proceeds in such a manner that it is developed in the horizontal direction, the first frame 21 is configured to further include a magnet portion 60 to be fixed so as not to shake.

That is, the magnet part 60 is fixed to one side of the fixed frame 10, the first frame 21 is made of a metallic material to zoom, by the magnetic force of the magnet part 60 When the position adjustment of the adjuster 200 is manually performed by a user, the first frame 21 is to firmly fix the deployment state of the adjuster 200 to prevent shaking.

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As described above, the present invention not only makes the adjustment of the position of the adjuster automatically by the motor, but also prevents the shaking of the adjuster while the position adjustment is made, and freely adjusts the adjuster freely to effectively prevent obstacle interference. In addition to coping, it is possible to obtain an effect of improving the convenience of use while allowing the adjuster to freely adjust its deployment length in the front, that is, the longitudinal direction.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (6)

Fixed frame attached to the armrest body of the wheelchair; A flow frame which is separately installed outside the fixed frame and having an adjuster attached to a front end thereof; A plurality of rotary links connected to the fixed frame and the flow frame at both ends by a hinge axis to guide position adjustment of the flow frame; A motor provided at one end of the fixed frame and connected to a hinge shaft and a drive shaft of one of the rotary links to drive the position of the flow frame to which the adjuster is automatically adjusted; And, A switch provided at the other end of the fixed frame and controlling driving of the motor; Adjusting device position adjustment device for an electric wheelchair characterized in that comprising a. The method of claim 1, wherein the flow frame, A first frame connected to the fixed frame through a plurality of rotary links and deployed in a horizontal direction; A second frame having an adjuster attached to the tip thereof, the linearly extending operation in the longitudinal direction within the first frame; And, Adjusting means for fixing the position when receiving or deploying the second frame from the first frame; Adjusting device position adjustment device for an electric wheelchair characterized in that comprising a. The method of claim 2, The second frame is configured to combine the first coupling portion provided with a multi-stage first angle adjustment groove in the curved surface in a state where the curved surface at the end, The square pipe extending from the bracket to which the adjuster is coupled comprises a second coupling portion having a second angle adjusting groove portion of the multi-stage on the curved surface with a curved surface, The first and second coupling parts configured with the first and second angle adjusting grooves are connected to each other through a joint link to be rotatable with a hinge axis. And a locking portion inserted into the first and second angle adjusting grooves of the multi-stage and configured to lock the height of the adjuster and the position of the up and down deployment angles at the end of the articulated link. According to claim 3, wherein the first and second coupling portion adjuster position adjusting device for an electric wheel chair, characterized in that fixed by the pin in the state fitted to the square pipe of the second frame and bracket. The method of claim 3, wherein the locking unit, Locking balls protruding to both sides of the joint link to be inserted into any one of the first and second angle adjusting groove portion made of a multi-stage, And a spring for providing a pressure to the locking ball so that the locking ball is inserted into the first and second angle adjusting grooves. Fixed frame attached to the armrest body of the wheelchair; A flow frame which is separately installed outside the fixed frame and having an adjuster attached to a front end thereof; A plurality of rotary links connected to the fixed frame and the flow frame at both ends by a hinge axis to guide position adjustment of the flow frame; Configure the position adjustment device for the electric wheelchair of the manual adjustment method consisting of, The fixed frame is connected to a plurality of rotary links, the position adjustment device for an electric wheel chair, characterized in that to form a magnet portion on the side to prevent shaking of the flow frame spread in the horizontal direction.

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