KR101396908B1 - Electric wheelchair fixing apparatus for vehicle - Google Patents

Abstract

The present invention relates to an electric wheelchair fixing device for a vehicle mounted on a public transportation vehicle, such as a bus or a subway, to stably fix the wheel of an electric wheelchair and to efficiently prevent the electric wheelchair from separating when the safety accidents of the vehicle occur. The electric wheelchair fixing device for a vehicle comprises: a body case having a C-shaped cross section, fixed on the bottom surface of the vehicle, comprising a wheel receiving space opened to enter the wheel of the wheelchair in a specific direction and equipment spaces vertically divided like a duplex structure; a first compression part mounted on the lower equipment space of the body case, and compressing both sides of the lower part of the wheel entered in the wheel receiving space; and a second compression part mounted on the upper equipment space of the body case to be positioned behind the upper part of the first compression part, and compressing both sides of the rear part of the wheel entered in the wheel receiving space.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric wheelchair fixing device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wheelchair fixing device for a vehicle, and more particularly, to an electric wheelchair fixing device for a vehicle, which is mounted on a vehicle, such as a bus or a subway, To an electric wheel chair fixing device for an automobile which can effectively prevent the wheel chair from being damaged.

In general, various types of wheelchairs having a structure in which a person is seated can be used so that the disabled can not move their legs freely, such as the physically disabled, the elderly, and the patient, so that they can independently participate in social life, work, and leisure life . Furthermore, a typical wheelchair is divided into a manual wheelchair, which is moved by turning a wheel handle through a user's muscular strength by an arm, and a motorized electric wheelchair, which can generate and drive power according to its own electricity supply.

However, when the vehicle is in a public transportation system such as a bus, a subway, or a train while sitting on a wheelchair, the wheelchair can not be kept stationary. Therefore, There was a big problem. Accordingly, various types of fixing devices capable of appropriately fixing a wheelchair on a vehicle have been developed.

As a prior art disclosed to solve the above-mentioned problems, Korean Patent Registration No. 839569 (2008.06.12.) Is attached to the bottom surface of a moving means including a bus, a train, and a ship, A base panel for mounting the device parts; First and second pressing rods mounted on the base panel, spaced apart from each other by a predetermined distance and opposed to each other, and rotatably coupled to the base panel by first and second pivots; A movable upper / lower plate attached to the base panel and vertically installed with respect to the first and second pressing rods, a rack gear formed at a lower end thereof, and having one end connected to the second pressing rod by connection pivot ; A pinion gear engaged with the rack gear formed on the moving upper / lower plate and transmitting rotational driving force to the rack gear; A motor coupled to a shaft of the pinion gear to generate a rotational driving force to the pinion gear; A first pressing rod rotatably coupled between the first pressing rod and the moving upper / lower plate, and a second pressing rod rotatably coupled between the first pressing rod and the moving upper / lower plate so that when the moving upper / lower plate is moved so that the second pressing rod is centered, The link-type wheelchair fixing device is mounted on the moving means so that both sides of the wheel can be closely fixed to each other.

As another conventional technology for a wheelchair fixing device, Korean Patent Registration No. 928081 (Nov. 16, 2009) discloses a wheelchair fixing device which is attached to the bottom surface of a moving means including a bus or a train, A panel; An inner wall attached to the base panel for blocking entry of the wheelchair wheel; An inner / outer case mounted on the base panel and spaced apart from each other by a predetermined distance, the inner / outer case being mounted to face each other, and a pressure driver for driving the flow of the inner / outer pressure plate in mutually opposing directions; An inner / outer bracket mounted opposite to the inner side surfaces of the inner / outer case, the inner / outer bracket being coupled to the pressurizing / driving unit to flow in and out; An inner / outer pressure plate attached to a front surface of the inner / outer bracket and made of an elastic material for pressing and fixing the wheel of the wheel chair; A motor that is mounted on the inner / outer case to generate a driving force, a plurality of gears meshed with the motor to reduce the driving force of the motor, and a speed reducer coupled to the driven gear of the speed reducer, A pinion gear, and a pressurizing drive unit that is engaged with the pinion gear and configured to convert a rotational motion into a linear motion, wherein the wheel of the wheelchair is rotated by the mutual pressing of the inner / outer pressing plates coupled to the end of the pressing drive unit A wheel fixing device for a wheelchair provided in the moving means is known, which has an excellent fixation force by fixing it so as to prevent rolling motion.

However, in the case of the above-mentioned conventional technique, in the case of the No. 839569, since the contact is made with respect to the wheel or the wheel, .

In addition, in the case of the above-mentioned Japanese Patent Publication No. 928081, one or two power sources are provided on the left and right sides, respectively, so that the structure is complicated and a manufacturing cost is unnecessarily large.

In addition, in the case of the above-mentioned Patent Publication No. 839569 and No. 928081, both of them can be applied only to a manual wheelchair, so that it is impossible to fix an electric wheelchair and thus it is possible to use only a limited structure. There was a problem with limit.

In addition, even when the size of the electric wheelchair wheel is different according to the size of the registered patent publication No. 839569 and the registered patent publication No. 928081, it is difficult to engage the wheel of the wheel by a large number of pins, It is difficult to maintain the fixed state of the wheelchair only by the contact with the contact, and when the safety accident such as a rollover accident occurs, there is a possibility that the wheel is released from the fixing device, .

Therefore, it is urgently required to develop a fixing device capable of keeping the electric wheelchair in a state of being fixed in the vehicle, which is a public transportation vehicle, in a trend of continuous increase in frequency of use along with economic growth.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a wheelchair for a motorized wheelchair which can secure the convenience and safety of an electric wheelchair user using public transportation means, The present invention provides an electric wheelchair fixing device for a vehicle that can be fixed at the lower portion and the rear portion, thereby greatly improving the fixing performance of holding the wheelchair.

In addition, the present invention can be applied to a single power source so that it can be squeezed at the same time in the left and right direction, so that it has a simple structure, is in surface contact with the wheel of the wheelchair, is pressed with high fixing force, And an object of the present invention is to provide an electric wheelchair fixing device for a vehicle that can effectively prevent a wheelchair from being separated from the wheelchair.

The present invention provides an electric wheel chair fixing device for a vehicle comprising a wheel accommodation space having a "C" -shaped cross section and fixedly attached to a bottom surface of a vehicle, the wheel accommodation space being openable to one side of the wheelchair, A body case formed in a multi-layered structure so as to have a facility space divided and divided; A first pressing part mounted on a lower equipment space of the body case and pressing both sides of a lower portion of the wheel that enters the wheel receiving space; And a second squeeze portion mounted on an upper facility space of the body case to be positioned at an upper rear side of the first squeezed portion and pressing both sides of the rear portion of the wheel that enters the wheel receiving space.

The body case may further include a power sensing unit for sensing the receipt of a wheel that has entered the wheel accommodation space and controlling the operation of the first and second compression units.

The power sensing unit includes a contact switch having a wheel installed in a wheel receiving space of the body case so as to be able to contact the wheel and having a restoring spring for pressing the inside of the body case and a sensing sensor for sensing whether the wheel is in contact with the contact switch .

Wherein the first pressing portion and the second pressing portion have a pair of first pressing means and second pressing means provided symmetrically symmetrically with respect to each other with respect to the wheel receiving space, A first plate and a second plate respectively connected to one side of the two pressing means and rotatably mounted by a hinge shaft, and a first plate and a second plate connected to the first plate and the second plate, Driving means and second driving means.

Wherein the first pressing means and the second pressing means comprise a first pressing plate and a second pressing plate which are formed in a wall surface of the wheel receiving space and are in close contact with the side surface of the wheel and are press- A first support plate and a second support plate rotatably connected to one end of the plate and the second plate and supporting a pressing action of the first press plate and the second press plate, And a second pressing plate disposed between the second pressing plate and the second supporting plate and protruding toward the pin outlets of the first pressing plate and the second pressing plate, And a second detachment pin for securing the first detachment prevention pin and the second detachment prevention pin.

The first compression plate and the second compression plate are respectively installed at left and right distances from a facility space in the body case, and are disposed on the first compression plate and the second compression plate in accordance with a force applied to the first compression plate and the second compression plate. The first tilting means and the second tilting means are formed so that the second press plate can be inclined.

Wherein the first tilting means and the second tilting means comprise a first support block and a second support block fixedly installed in a facility space in the body case in correspondence with one surface of the first presser plate and the second presser plate, And a spring positioned between the first support block and the first compression plate and between the second support block and the second compression plate so as to be in contact with each other.

The second presser plate may have a block shape in which one surface of the second presser plate contacting the wheel has a concave curved surface corresponding to the shape of the wheel.

The first departure prevention pin and the second departure prevention pin constitute a compression spring which is provided at a rear portion so as to protrude forward to contact with the wheel.

The first release prevention pins are formed in pairs in the first compression plate at left and right distances.

Wherein the first driving means and the second driving means are a rack bracket coupled to the rear end of the left plate on the first plate and the second plate and formed to be linearly movable left and right with a rack gear, A pinion bracket having a pinion gear engaged with the bracket so as to be rotatable and coupled to a rear end portion of the right plate on the first plate and the second plate respectively and a pinion bracket mounted on the pinion bracket, Drive motor.

Further, the present invention may further comprise a locking means installed in the second pressing portion and pressing and fixing the rear surface of the rear portion of the wheel that has entered the wheel receiving space.

The locking unit includes a fixed block having a receiving groove formed on one side thereof so as to cover and cover the outer peripheral surface of the wheel, a driving cylinder .

According to the electric wheelchair fixing device for a vehicle according to the present invention, an electric wheelchair can be locked in a vehicle, which is a public transportation means, so that a user with a discomfort can be safely protected and a public transportation means can be conveniently used. The effect that can be achieved is obtained.

In addition, the electric wheelchair fixing device for a vehicle according to the present invention improves the fixation performance of holding the wheelchair by fixing the lower portion and the rear portion of the wheel to the wheel of the electric wheelchair, There is an effect that can be made.

Further, the electric wheel chair fixing device for a vehicle according to the present invention can be constructed in a simple structure for controlling the left and right pressing means from a single driving motor, thereby facilitating the manufacturing process, reducing the number of parts required, .

Further, the electric wheel chair fixing device for a vehicle according to the present invention is fixed to a wheel of an electric wheelchair to fix the wheel portion of the wheel while fixing the wheel, thereby preventing an electric wheelchair from being separated from a safety accident, And the damage of the expensive electric wheelchair can be minimized.

Further, the electric wheel chair fixing device for a vehicle according to the present invention has a locking means in the first pressing portion, so that it is possible to more effectively prevent the electric wheel chair from being separated from the wheel chair and to maximize safety.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a photograph of a sofa that illustratively shows a typical electric wheelchair. FIG.
2 is a perspective view showing an embodiment according to the present invention;
3 is a plan view showing a first squeeze portion according to an embodiment of the present invention.
4 is a side view showing first and second driving means in an embodiment according to the present invention.
5 is a plan view showing a second squeeze unit according to an embodiment of the present invention.
6 is a plan view partially showing another embodiment of the second press plate in one embodiment according to the present invention.
Figure 7 is a side view schematically illustrating the use state of an embodiment according to the present invention.
FIG. 8 is a plan view showing a state of use of the first crimping portion in the embodiment according to the present invention. FIG.
9 is a front sectional view showing a state of use of the first pressing portion in the embodiment according to the present invention.
10 is a plan view showing a state of use of the second crimping portion in the embodiment according to the present invention.
11 is a plan view showing another embodiment according to the present invention.

The present invention relates to a wheelchair having a "C" -shaped cross section and fixedly installed on a floor surface of a vehicle and having a wheel receiving space which is open to allow the wheels of the wheelchair to enter in one direction, A body case formed in a multi-layer structure so as to be provided; A first pressing part mounted on a lower equipment space of the body case and pressing both sides of a lower portion of the wheel that enters the wheel receiving space; And a second squeeze portion mounted on an upper facility space of the body case so as to be located at an upper rear side of the first squeezed portion and pressing both sides of a rear portion of the wheel that has entered the wheel receiving space, As a feature of the technical construction.

The body case further includes a power sensing part for sensing an acceptance of a wheel that has entered the wheel receiving space and controlling the operation of the first and second pressing parts. .

Also, the power sensing unit may include a contact switch having wheels mounted in a wheel receiving space of the body case and having a restoring spring so as to be pushed inward, and a sensor for sensing whether the wheels are in contact with the contact switch The present invention relates to an electric wheelchair fixing device for a vehicle.

The first squeezing unit and the second squeezing unit may include a pair of first squeezing unit and second squeezing unit installed symmetrically with respect to each other with respect to the wheel receiving space, A first plate and a second plate which are respectively connected to one side of the second pressing means and are rotatably installed by a hinge shaft and a second plate which is connected to the first plate and the second plate, 1 driving means and a second driving means, according to the present invention.

The first compression means and the second compression means comprise a first compression plate and a second compression plate forming a wall surface of the wheel accommodation space and being in tight contact with the side surface of the wheel and being provided with pin outlets, A first support plate and a second support plate rotatably connected to one end of the first plate and the second plate and supporting a pressing action of the first press plate and the second press plate, A first pressing plate and a second pressing plate which are installed between the first pressing plate and the second pressing plate and between the second pressing plate and the second supporting plate so as to protrude toward the pin outlets of the first pressing plate and the second pressing plate, And a first detachment pin for securing the part and a second detachment pin for securing a portion of the wheelchair.

The first press plate and the second press plate are respectively provided with a distance to the left and right in a facility space in the body case and are provided with a first pressing plate and a second pressing plate in accordance with a force applied to the first press plate and the second press plate, And a first tilting means and a second tilting means formed so that the second presser plate can be inclined.

The first tilting means and the second tilting means may include a first support block and a second support block fixedly installed in a facility space in the body case in correspondence with one surface of the first presser plate and the second presser plate, And a spring positioned so as to be in contact with each other between the first support block and the first compression plate and between the second support block and the second compression plate, .

And the second presser plate is a block type having a concave curved surface corresponding to the shape of the wheel on one side thereof in contact with the wheel.

And the first detachment pin and the second detachment pin include a pressing spring provided at a rear portion so as to protrude forward to contact with the wheel.

And the first detachment pin is formed of a pair of left and right distances from the first pressing plate.

A rack bracket coupled to a rear end of a left plate of each of the first plate and the second plate and having a rack gear so as to be linearly movable left and right; A pinion bracket having a pinion gear engaged with the rack bracket so as to be rotatable and coupled to the rear end of the right plate on the first plate and the second plate respectively; a pinion bracket mounted on the pinion bracket, The present invention relates to an electric wheel chair fixing device for a vehicle.

Further, the present invention is a technical feature of the present invention, further comprising locking means provided in the second pressing portion and pressing and fixing the rear surface of the rear portion of the wheel that has entered the wheel receiving space.

The locking unit may include a fixed block having a receiving groove formed on one side thereof so as to cover the outer circumferential surface of the wheel so as to be wrapped around the wheel and a drive unit that is connected to one of the fixed blocks, The present invention relates to an electric wheelchair fixing device for a vehicle.

BEST MODE FOR CARRYING OUT THE INVENTION Next, a preferred embodiment of an electric wheelchair fixing device for a vehicle according to the present invention will be described in detail with reference to the drawings.

First, the electric wheelchair fixing device for a vehicle according to the present invention is for fixing an electric wheelchair 1 mounted on a vehicle. Referring to FIG. 1, a general configuration of an electric wheel chair 1 is shown. A rear wheel W having a relatively large diameter provided at the rear so as to move the body frame 3 and a rear wheel W disposed forwardly so as to stably maintain the body frame 3, The front wheels 5 are relatively small.

As shown in FIG. 2, an embodiment of an electric wheelchair fixing device for a vehicle according to the present invention includes a body case 10, a first pressing part 100, and a second pressing part 200.

The body case 10 is installed in a predetermined place in a vehicle and fixedly installed on a bottom surface of the vehicle. That is, the body case 10 is provided with a plurality of bolt holes (not shown) so as to be installed on the bottom surface of the vehicle, and is mounted by bolts.

As shown in FIG. 2, the body case 10 has a "C" -shaped cross section, and a rear wheel (hereinafter, referred to as a wheel W) And a wheel accommodation space 11 opened to have a width larger than the width.

Further, the wheel accommodation space 11 is formed to have a length and a width sufficiently extended in the entering direction so that the auxiliary wheel can be accommodated together with the wheel W and auxiliary wheels (not shown in the drawings) .

The body case 10 is formed as a multi-layered structure having a facility space 13 in the upper and lower parts and a space defined by the upper facility space 13 and the lower facility space 13.

The facility space 13 provided below the facility space 13 of the body case 10 is constructed to be capable of operating the first squeezing unit 100 and the facility space 13 provided at the upper side thereof The second crimping portion 200 can be operated.

The body case 10 has a base plate in contact with the bottom surface of the vehicle and a cover which is formed in the interior space of the body space 10, ) Is made openable.

The body case 10 further includes a power sensing unit 15 for controlling operation of the first compression unit 100 and the second compression unit 200 provided in the facility space 13 .

The power sensing unit 15 senses whether the wheel W received into the wheel accommodation space 11 of the body case 10 is accommodated. The power sensing unit 15 includes a contact switch 16 and a sensor 17 ).

The contact switch 16 is located in the wheel accommodation space 11 of the body case 10 so as to correspond to the direction in which the wheel W enters.

The contact switch 16 may be installed in the body case 10 in which the first crimping portion 100 is located and may be provided in the body case 10 in which the second crimping portion 200 is located It is possible.

The contact switch 16 is hingedly connected to the wheel receiving space 11 so as to be rotated by a predetermined angle.

When the wheel W which is in close contact with the contact switch 16 is separated from the wheel accommodation space 11, the contact switch 16 is restored to its original position by restoring the restoring spring 18 .

The detection sensor 17 senses whether or not the wheel W is contacted by the pressing action of the contact switch 16. That is, when the wheel W is in contact with the contact switch 16, it is positioned so as to be in contact with the contact switch 16, and whether the wheel W is received or not is detected according to whether or not the contact switch 16 is in contact.

The first pressing portion 100 functions to press both side surfaces of the lower portion of the wheel W entering the wheel receiving space 11 of the body case 10.

As shown in FIG. 3, the first pressing part 100 is installed in the lower facility space 13 of the facility space 13 of the body case 10 and includes a first pressing part 110, A first plate 120, and a first driving means 130.

The first pressing unit 110 and the first plate 120 have a pair of left and right symmetrical structures and have the same structure and configuration.

The first pressing unit 110 is installed on the left and right sides of the wheel receiving space 11 symmetrically with respect to the first pressing unit 111 and the first pressing plate 111, And a release prevention pin 115.

The first compression plate 111 is formed in a plate shape having a predetermined thickness and is provided to form both wall surfaces in the wheel accommodation space 11 of the body case 10.

The first compression plate 111 is closely attached toward the side of the wheel W that enters the wheel accommodation space 11 and is pressurizable by a constant force.

The first release prevention pin 115 is positioned in the first compression plate 111 and the pin exit hole H1 which is a space capable of moving toward the wheel W from the installation space 13 of the body case 10, Respectively.

The first pressing plate 111 preferably has a contact pad (not shown) formed of a material having a high elastic force and a high frictional force on one contact surface that contacts the wheel W.

Also, the first pressing plate 111 is configured to have a first tilting means 117 so that the first pressing plate 111 can be tilted according to a position where a force is applied.

The first tilting means 117 is disposed so as to be in contact with one surface (the side of the equipment space 13) of the first compression plate 111 in the facility space 13 in the body case 10, Respectively.

The first tilting means 117 includes a first support block 118 fixed to the facility space 13 in the body case 10 in correspondence with one surface of the first compression plate 111, 1 support block 118 and the first compression plate 111. The spring S1 is disposed between the support block 118 and the first compression plate 111 so as to be in contact with each other.

The first tilting means 117 can prevent the wheel W from entering the wheel receiving space 11 of the body case 10 even if the wheel W enters the state where the wheel W does not enter straight, The surface contact of the first presser plate 111 can be facilitated and the same fixing performance can be achieved.

The first support plate 113 is positioned in the facility space 13 of the body case 10 and supports the pressing action of the first presser plate 111.

The first support plate 113 is rotatably connected to one end of the first plate 120.

The first detent pin 115 protrudes toward the wheel portion of the wheel W that has entered the wheel receiving space 11 and is fixed.

The first release prevention pin 115 is positioned between the first press plate 111 and the first support plate 113 to correspond to the pin access hole H1.

The first departure prevention pin 115 passes through the pin access hole H1 of the first press plate 111 to fix the wheel portion of the wheel W located in the wheel accommodation space 11, As shown in Fig.

It is preferable that the first detachment pin 115 and the pin outlet H1 are positioned at the upper portion of the first press plate 111 so as to fix the wheel portion of the wheel W .

A pressing spring P1 is provided at the rear of the first detent pin 115. In other words, the first detachment pin (115) protrudes toward the wheel and can be projected forward by the compression spring (P1) until it comes into contact with the wheel (W)

The first release prevention pins 115 are formed as a pair at left and right distances from the first compression plate 111. That is, the anti-departure prevention pin 115 is configured to hang and fix the inner surface of the wheel portion of the wheel W so as to prevent the wheels W from being separated from each other.

If the wheel is clogged according to the type of the wheel W, it is possible to prevent the wheel W from being detached by the step provided on the wheel.

In addition, the first release prevention pins 115 may be formed as a plurality of upper and lower layers on the first compression plate 111.

For example, a 14-inch wheel is mainly used depending on the size of the wheel W, but a 16-inch wheel is also commonly used. By configuring the first departure prevention pin 115 in the vertical direction as described above, The first departure prevention pin 115 can be fixed by being in contact with the 14-inch wheel, as well as being fixed by the first departure prevention pin 115 located at the upper side in the case of a 16-inch wheel.

One end of the first plate 120 is connected to one side of the first squeezing means 110 and the other end is connected to the first driving means 130 to drive the first driving means 130 So as to perform a function of applying a force to the first pressing means 110.

The first plate 120 is rotatably installed with a hinge axis C1. That is, the first plate 120 rotates about the hinge axis C1 and one front end of the first pressing unit 110, which is driven by the first driving unit 130, ) Or operate to converge.

The first driving means 130 operatively powers the first compression means 110 located on both sides of the wheel accommodation space 11 and located behind the wheel accommodation space 11 .

The first driving means 130 is operatively connected to a pair of the first plates 120 positioned symmetrically to each other at the same time.

3 and 4, the first driving unit 130 is configured to operate the first plate 120 so that a force can be transmitted to the first pressing unit 110. The first driving unit 130 includes a rack bracket 131, a pinion bracket 133, and a drive motor 135.

The rack bracket 131 is connected to the rear end of the left plate 120a at the first plate 120. [

The rack bracket 131 is formed with a rack gear 132 having a large number of teeth in the longitudinal direction so as to be linearly movable left and right.

A guide groove 137 is formed in the rack bracket 131 in a longitudinal direction on one side of the rack gear 132 so as to maintain a connection relation with the pinion bracket 133.

The pinion bracket 133 is coupled to the rear end of the right plate 120b of the first plate 120 and is rotatably engaged with the rack gear 132 of the rack bracket 131. [ (134).

And a guide protrusion 138 protruding toward the guide groove 137 and configured to be slidable in the longitudinal direction is provided at a lower portion of the pinion bracket 133.

When the guide protrusion 138 is formed as described above, the coupling relationship between the rack gear 132 and the pinion gear 134 can be maintained at all times so that the mutual drive can be smoothly performed.

The drive motor 135 is mounted on the pinion bracket 133 and applies power to the pinion gear 134.

Although not shown in the drawing, a connecting relationship for transmitting power from the driving motor 135 to the pinion gear 134 includes a reduction gear on the axis of the driving motor 135, and the reduction gear and the pinion gear 134 And a bevel gear that interconnects the bevel gears.

The second pressing portion 200 presses and fixes both sides of the rear portion of the wheel W entering the wheel receiving space 11 of the body case 10.

The second crimping portion 200 is mounted on the upper facility space 13 of the body case 10 so as to be positioned at the upper rear of the first crimping portion 100.

As shown in FIG. 2, the second crimping portion 200 is installed in the upper facility space 13 of the facility space 13 of the body case 10.

 As shown in FIG. 5, the second compression unit 200 includes a pair of second compression means 210 installed symmetrically with respect to the wheel accommodation space 11 so as to face each other, A second plate 220 connected to one side of the second pressing means 210 and rotatably mounted by a hinge axis C2 and a second plate 220 connected to the second plate 220 and operatively power- And second driving means (230).

The second pressing means 210 is configured to press both sides of the wheel W entering the wheel receiving space 11 of the body case 10 so as to be able to press the second pressing plate 211 and the second A support plate 213 and a second departure prevention pin 215.

The second presser plate 211 is in the form of a plate and is in direct contact with the side face of the wheel W so as to be directly contactable.

The second release pin 215 is located in the second compression plate 211 and is provided with a pin outlet hole H2 which is a space capable of moving toward the wheel W from the facility space 13 of the body case 10. [ Respectively.

(Not shown) formed of a material having a high elastic force and a high frictional force on one of the contact surfaces contacting with the wheel W is formed on the second presser plate 211. [

The second presser plate 211 is installed at a distance to the left and right in the facility space 13 in the body case 10 and is disposed in the second presser plate 211 in accordance with the force applied to the second presser plate 211, The second tilting means 217 is formed so that the second tilting means 211 can be tilted.

The second tilting means 217 includes a second support block 218 fixed to one side of the second compression plate 211 and fixed to the facility space 13 in the body case 10, 2 support block 218 and the second presser plate 211. The spring S2 is located between the support block 218 and the second presser plate 211 so as to be in contact with each other.

As shown in FIG. 6, the second presser plate 211 may be formed in a block shape having a concave curved surface corresponding to the shape of the wheel W, one surface of which is in contact with the wheel W.

As described above, when the second presser plate 211 is formed in a block shape, it is possible to press and fix the wheel W more strongly, and the wheel portion of the wheel W is caught, Do.

The second support plate 213 is rotatably connected to one end of the second plate 220 and supports the pressing action of the second press plate 211.

The second separation prevention pin 215 presses the wheel W located in the wheel accommodation space 11 and fixes the wheel portion of the wheel W by the second compression plate 211.

The second separation prevention pin 215 is located between the second compression plate 211 and the second support plate 213 and is protruded toward the pin outlet hole H2 of the second compression plate 211 Respectively. The second release prevention pin 215 passes through the pin access hole H2 of the first compression plate 111 to fix the wheel portion of the wheel W located in the wheel accommodation space 11, W).

The second release prevention pin 215 and the pin access hole H2 are formed in the front portion of the second presser plate 211 where the wheel W enters in order to fix the wheel portion of the wheel W .

And a compression spring P2 is provided at the rear of the second departure prevention pin 215. In other words, the second detachment prevention pin 215 protrudes towards the wheel and can be projected forward by the compression spring P2 until it comes into contact with the wheel W when it is compressed.

The second plate 220 has one end connected to one side of the second pressing means 210 and the opposite end connected to the second driving means 230 to drive the second driving means 230 So as to perform a function of applying a force to the second pressing means 210.

The second plate 220 is rotatably installed with a hinge axis C2. That is, the second plate 220 is rotated about the hinge axis C2, and one of the front ends of the second pressing means 210, which is driven by the second driving means 230, ) Or operate to converge.

The second driving unit 230 is connected to the second plate 220 and is configured to apply power to the second plate 220 in an interoperable manner.

The second driving unit 230 includes a rack bracket 231 coupled to the rear end of the left plate 220a of the second plate 220 and having a rack gear 232 and being linearly movable left and right, A pinion bracket 233 having a pinion gear 234 rotatably engaged with the rack bracket 231 and coupled to a rear end of the right plate 220b at the second plate 220, And a driving motor 235 which is mounted on the bracket 233 and applies power to the pinion gear 234.

The rack bracket 231 and the pinion bracket 233 and the drive motor 235 constituting the second drive means 230 are provided with the rack bracket 131 which is the constitution of the first drive means 130, The bracket 133 and the drive motor 135 are implemented by the same structure and configuration, and thus detailed description thereof will be omitted.

The first pressing means 111 and the second pressing means 211 are respectively provided inside the first pressing means 110 and the second pressing means 210 so that the first driving means 130, And a pressure sensing sensor (A) for stopping the driving of the driving motors (135) and (235) of the second driving means (230).

The pressure sensor A is provided at a predetermined distance from the back surface of the first compression plate 111 and the second compression plate 211 (the surface opposite to the surface contacting the wheel W) When a sufficient pressure is applied by a force transmitted from the first driving means 130 and the second driving means 230, the back surface of the first pressing plate 111 and the second pressing plate 211 are pressed The driving of the driving motor 135 (235) is stopped from the sensing signal of the pressure sensor (A) because it contacts the pressure sensing sensor (A).

7 to 10, the wheel W (rear wheel or auxiliary wheel) enters the wheel receiving space 11 of the body case 10 as shown in FIG. 7, The first pressing portion 100 and the second pressing portion 200 simultaneously operate to press both sides of the lower portion and the rear portion of the wheel W respectively, The separation prevention pins 115 and the second separation prevention pins 215 protrude to fix the wheel portion of the wheel W together with the wheel W at the same time.

At this time, the driving of the first pressing part 100 and the second pressing part 200 is driven by receiving the power transmitted from the first driving part 130 and the second driving part 230, respectively.

8 and 9, the power applied by the first driving unit 130 is transmitted to the first plate (not shown) having a symmetrical structure at both sides The first plate 120 is rotated about the hinge axis C1 while the first plate 120 is rotated about the hinge axis C1 and the second plate 120b is rotated about the hinge axis C1, The wheel W is tightly fixed to the wheel supporting space 110 by applying a pushing force to the wheel 110 in an inner direction, that is, toward the wheel W entering the wheel receiving space 11. At this time, in the case of the first pressing means 110, the first press plate 111 is closely attached to both sides of the wheel W and the first departure prevention pin 115 protrudes toward the pin access hole H1, Thereby fixing the wheel portion of the wheel W.

10, the power applied from the second driving unit 230 is transmitted to the left plate 220a and the right plate 220a of the second plate 220, And the second plate 220 is rotated about the hinge axis C2 while the second pressing means 210 is moved in the direction toward the wheel accommodation space 11 So as to fix the side surface of the wheel W while applying pressure to the rear side of the wheel W. At this time, in the case of the second squeezing means 210, the second squeezing plate 211 adheres to both sides of the wheel W and the second slack prevention pin 215 protrudes toward the pin access hole H2, Thereby fixing the wheel portion of the wheel W.

The rack brackets 131 and 231 and the pinion brackets 133 and 233 are connected to the rack gear 132 and the pinion 232 through the pinion brackets 133 and 233, When the pinion gears 134 and 234 are rotated clockwise from the drive motors 135 and 235 with the gears 134 and 234 meshed with each other, the pinion gears 134 and 234 and the rack gear 132 The first and second pressing members 210 and 210 are locked in a locked state by an action of pushing out each other while applying a reaction force between the first and second pressing members 210 and 232, The rack bracket 131 and the pinion brackets 133 and 233 move inward while the rack bracket 131 and the pinion bracket 133 move in the counterclockwise direction of the first and second pressing units 110 and 134, Moves the means (210) to unlock the wheel (W).

That is, according to the present invention, the electric wheelchair can be locked in the vehicle, which is a public transportation means, so that the user who is inconvenient can be safely protected and the public transportation means can be conveniently used It is possible to stabilize the life of the weak.

In addition, the present invention improves the fixing performance of holding the wheelchair by fixing the lower portion and the rear portion of the wheel to the wheel of the electric wheelchair, so that it is possible to prevent the wheelchair from being shaken during the movement of the vehicle and greatly improve the stability.

In addition, the present invention can be constructed in a simple structure to control the left and right squeezing means from one driving motor, so that the manufacturing process is easy and the number of required parts is reduced to reduce the production cost, thereby ensuring cost competitiveness.

In addition, the present invention can prevent damage to the user from being injured to the user and prevent damage to the expensive electric wheel chair by preventing the electric wheelchair from being separated from the safety accident such as the rollover of the vehicle by fixing the wheel portion of the wheel while being fixed to the wheel of the electric wheelchair, Can be minimized.

11, another embodiment of the electric wheel chair fixing device for a vehicle according to the present invention is provided on the second pressing means 210 of the second pressing part 200 and is provided in the wheel accommodation space 11 And locking means 300 for pressing and fixing the rear surface of the rear portion of the wheel W entered.

The locking means 300 includes a fixing block 310 which is in contact with a rear outer circumferential surface of the wheel W at one side and a fixing block 310 which is connected to one side of the fixing block 310 and which is capable of reciprocatingly moving back and forth And a driving cylinder 320 for applying the driving force.

The fixing block 310 has a receiving groove 311 having a width and a shape corresponding to the wheel W and having a predetermined depth so as to partly cover the wheel W.

The locking unit 300 may be provided in only one of the second pressing units 210 located on the left and right sides. The fixing unit 310 may be divided into left and right sides, It is also possible to configure them respectively.

That is, according to the present invention configured as in the above-described other embodiments, it is possible to more effectively prevent the disengagement of the electric wheelchair wheel and to maximize the safety.

In the other embodiments described above, the same configuration as that of the above-described embodiment can be employed, so that detailed description is omitted.

Although the preferred embodiments of the electric wheelchair fixing device for a vehicle according to the present invention have been described above, the present invention is not limited thereto. Are also within the scope of the present invention.

1: electric wheelchair 10: body case 11: wheel receiving space
13: facility space 15: power sensing unit 16: contact switch
17: Detection sensor 18: Restoring spring 100: First pressing part
110: first pressing means 111: first pressing plate 113: first supporting plate
115: first departure prevention pin 117: first tilting means 118: first support block
120: first plate 130: first driving means 200: second pressing portion
210: second pressing means 211: second pressing plate 213: second supporting plate
215: second departure prevention pin 217: second tilting means 218: second support block
220: second plate 230: second driving means 131, 231: rack bracket
132, 232: rack gear 133, 233: pinion bracket 134, 234: pinion gear
135, 235: drive motor 137, 237: guide groove 138, 238:
300: locking means 310: fixing block 311: receiving groove
320: Drive cylinder A: Pressure sensor W: Wheel
C1, C2: Hinge axis H1, H2: Pin entry / exit holes P1, P2,
S1, S2: Spring

Claims (13)

A wheel receiving space which has a cross section of a "C" shape and is fixedly attached to the bottom surface of the vehicle and is open to allow the wheels of the wheelchair to enter in one direction, A body case formed to have a structure;
A first pressing part mounted on a lower equipment space of the body case and pressing both sides of a lower portion of the wheel that enters the wheel receiving space;
And a second squeeze part mounted on an upper facility space of the body case to be located at an upper rear side of the first squeezed part and pressing both sides of the rear part of the wheel that has entered the wheel accommodation space. Electric wheelchair anchors for vehicles.
The method according to claim 1,
Wherein the body case further comprises a power sensing part for sensing the reception of a wheel that has entered the wheel receiving space and controlling the operation of the first and second pressing parts.
The method of claim 2,
The power sensing unit may include a contact switch having a wheel installed in the wheel accommodation space of the body case so as to be able to contact the wheel and having a restoring spring for pressing the inside of the body case and a sensing sensor for sensing whether the wheel is in contact with the contact switch Wherein the wheelchair holding device comprises:
The method according to claim 1,
The first squeezing unit and the second squeezing unit may include a pair of first squeezing unit and second squeezing unit installed symmetrically with respect to each other with respect to the wheel receiving space, A first plate and a second plate respectively connected to one side of the second pressing means and rotatably mounted by a hinge shaft, and a first plate and a second plate which are connected to the first plate and the second plate, respectively, And a first driving means and a second driving means.
The method of claim 4,
The first compression means and the second compression means comprise a first compression plate and a second compression plate forming a wall surface of the wheel accommodation space and being in tight contact with the side surface of the wheel and being provided with pin outlets, A first support plate and a second support plate rotatably connected to one end of the first plate and the second plate and supporting a pressing action of the first press plate and the second press plate, A first pressing plate and a second pressing plate which are installed between the first pressing plate and the second pressing plate and between the second pressing plate and the second supporting plate so as to protrude toward the pin outlets of the first pressing plate and the second pressing plate, And a first release preventing pin and a second release preventing pin for securing a portion of the wheelchair holding member.
The method of claim 5,
The first compression plate and the second compression plate are respectively provided with a distance to the left and right in a facility space in the body case and are provided on the first compression plate and the second compression plate in accordance with a force applied to the first compression plate and the second compression plate. And first tilting means and second tilting means formed so that the second compression plate can be tilted.
The method of claim 6,
The first tilting means and the second tilting means comprise a first support block and a second support block fixedly installed in a facility space in the body case in correspondence with one surface of the first presser plate and the second presser plate, And a spring that is positioned between the first support block and the first compression plate and between the second support block and the second compression plate so as to be in contact with each other.
The method of claim 5,
Wherein the second presser plate is of a block type having a concave curved surface corresponding to the shape of the wheel on one side thereof in contact with the wheel.
The method of claim 5,
Wherein the first detachment pin and the second detachment pin include a compression spring that is provided at a rear portion so as to protrude forward to contact the wheel.
The method of claim 5,
Wherein the first release preventing pins are formed in a pair at left and right distances from the first pressing plate.
The method of claim 4,
Wherein the first driving means and the second driving means are a rack bracket coupled to a rear end of a left plate of the first plate and the second plate respectively and having a rack gear so as to be linearly movable left and right, A pinion bracket having a pinion gear engaged with the rack bracket so as to be rotatable and coupled to the rear end of the right plate on the first plate and the second plate respectively; a pinion bracket mounted on the pinion bracket, And a driving motor for driving the wheelchair body.
The method according to any one of claims 1 to 11,
Further comprising locking means installed in the second pressing portion and pressing and fixing the rear surface of the rear portion of the wheel that has entered the wheel receiving space.
The method of claim 12,
The locking unit includes a fixed block having a receiving groove formed at one side thereof so as to cover the outer circumferential surface of the wheel so as to cover the outer circumferential surface of the wheel, and a driving unit And a cylinder (20).

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