RU25999U1 - TRANSFORMABLE PERSONAL VEHICLE - Google Patents

Description

llliilPlllpilFPPP ™ A61G5 / 04

TRANSFORMABLE PERSONAL VEHICLE

The utility model relates to highly maneuverable vehicles and can be used to move people with limited mobility on horizontal, inclined and stepped surfaces.

Known stroller for the disabled Patent of the Russian Federation 2043097, MKI A61G 5/04, publ. 09/10/1995. The stroller has a seat and electric wheel blocks connected to the frame, the wheels of each of which are equipped with rollers mounted on longitudinally located axles around the perimeter of the wheel. Each wheel is equipped with an autonomous drive. The rollers of each wheel are connected by an annular closed flexible shaft connected to the corresponding drive. The wheel blocks are closed by casings and are connected by a transverse rotary axis, on which a seat is mounted with the possibility of rotation in a longitudinal vertical plane. A battery is attached under the seat. The stroller allows the disabled person to move forward and backward, turn around in place around the center of symmetry, move right or left in the direction perpendicular to the plane of the wheels, and also move up and down stairs. However, the constant wheelbase allows you to move only along the stairs, the parameters of which (the height and length of the steps) correlate with the parameters of the wheels and rollers. Another disadvantage of the design is that it allows you to turn only "on-board way. Thus, the tool has limited mobility. Known three-wheeled vehicle for the disabled Patent of the Russian Federation

2128035, MKI A61G 5/04, publ. 03/27/1999. The device comprises a chair, a frame with cruciform and round wheels placed on the axis, mounted on springs. The round wheels are suspended on the springs in such a way that when hitting the edge of the steps, they go up to the side, giving the vehicle the opportunity to step along the steps due to the cross-shaped wheels. After the vehicle climbs onto a horizontal platform, the cones mounted on the axles are introduced into the wheel couplings using a mobile Y-shaped device connected by a traction to a lever, on the handle of which there is an electric motor switch. Like the analogue described above, a three-wheeled vehicle has limited mobility, which is primarily a consequence of a fixed wheelbase.

Famous vehicles, the design of which provides original mechanisms for moving along staircases, regardless of the ratio of the parameters of the steps of the stairs. So the vehicle is known Patent of the Russian Federation 2153868, MKI A61G 5/04, publ. 08/10/2000, the embodiment illustrated by FIG. 1- Fig. 3 of the patent, which has a seat mounted on a structure comprising two vertical supports "legs installed transversely to the longitudinal axis. Each of the legs is made with the possibility of changing the height. Moving on horizontal or inclined surfaces is carried out using wheels mounted on the "legs of the device. To move along the stairs, additional supporting platforms are attached, attached to the “legs of the device from below.

SHZ. 1Sh,

2 Moving up the stairs as follows. Armchair

rotates in a horizontal plane by 90 ° in relation to the suspension system, including “legs with supporting platforms (wheels retract upward to the inoperative position). A rotary device in combination with the ability to extend and remove each “leg” allows the vehicle to move up and down the stairs in a manner similar to the movement of a person on a ladder. Each "leg, when it serves as a support, holding the weight, provides the ability to rotate the rest of the vehicle around the vertical axis" legs during the execution of the rotation. The front position of the chair is maintained. The device has a complex control system and control the position of individual elements, but it does not have sufficient stability. When moving up the stairs, stability is ensured by using the hand of a seated person to grab the railing or with the help of an assistant.

As a prototype, the device described in the aforementioned patent, the second embodiment of the invention, Patent RF 2153868, MKI A61G 5/04, publ. 08/10. 2000, the embodiment illustrated in FIG. 9- FIG. 10 patents. In this device, the chair is mounted on a supporting structure mounted on a wheel base. The supporting structure is a lever mechanism, two levers of which are equipped with actuators, providing a change in their angle of inclination to the horizon, and, consequently, a change in the height of the chair. The wheelbase consists of two two-wheeled groups. Each group has its own separately controlled engine for joint rotation of the wheels of a pair around a common axis. In addition, each wheel

3 is equipped with its own engine, providing rotation of the wheel around

own axis. When moving along a horizontal or inclined surface, the most stable position is ensured in the position at which the levers of the supporting structure are in the folded position, and all four wheels touch the supporting surface. Changing the level of the seat is achieved not only by changing the angle of inclination of the levers to the horizon, but also by lifting one of the wheels of each wheelset to an inoperative position. In this case, the vehicle relies on two support points on one of the wheels of each wheelset, which reduces its stability. Stability can be ensured only through the use of a control system, the operation of which maintains the dynamic stability of the vehicle. To move along the stairs, the links of the levers are in a vertically elongated position in order to ensure maximum height. Climbing the stairs is performed by rotating both groups of wheels around the common axis of each group and coordinated rotation of the wheels. The prototype has a simpler construction than the one described above. However, this vehicle also needs a complex control system to maintain dynamic stability, and when moving up the stairs it is recommended to use a handrail or to resort to the help of an assistant.

The utility model is based on the task of expanding the arsenal of individual vehicles for people with reduced mobility, namely the creation of a highly maneuverable vehicle with

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increased stability and maneuverability with a relatively simple design and control system.

The problem is solved in that in a convertible personal vehicle containing a seat, mounted on a supporting lever structure mounted on a wheel base, including a wheel pair equipped with a drive that allows the wheels to rotate together around a common axis, while the tool is equipped with drive systems that provide the change in the relative position of its elements, as well as the autonomous power system and the control and monitoring system, new, according to the utility model, is the fact that the supporting linkage structure comprises a supporting frame and a rear axle pivotally connected by at least one lever, the supporting frame includes a front support post, a rear support post pivotally connected by an upper and lower cross member, said wheel pair with a drive is fixed to the front post, providing the possibility of joint rotation of the wheels around a common axis, as well as an additionally mounted steering column designed to rotate the said pair of wheels, the supporting frame is equipped with a drive, In order to change the angle of inclination of the said cross-pieces to the horizon, a chair is fixed on the upper part of the rear support post, the rear axle has a longitudinally oriented support and connecting element and a transverse axis or a transverse beam with a transverse axis or with two half shafts, directly on which or by means of balancers two drive wheels.

In this case, the rear axle can be additionally equipped with two telescopic stops mounted on the said axis or half shafts in planes parallel to the planes of the wheels, while the working end of each of the stops protrudes beyond the outer circumference of the corresponding wheel, the telescopic stops are equipped with at least one drive that allows them to rotate and independent of the drive rotation of the wheels, and the axis of rotation of the stops can coincide with the axis of rotation of the wheels. The longitudinally oriented support and connecting element may be a longitudinal beam or frame structure.

The chair is pivotally mounted, equipped with a drive, the back and seat of the chair are also pivotally interconnected with the possibility of changing the angle of inclination, including the position at which they are in one plane common to them, including the vertical one.

The utility model is illustrated by drawings, in which: FIG. 1 is a general view of a vehicle; FIG. 2 is a construction of a supporting frame. FIG. 3 - design of the rear axle, FIG. 4 - means in the standing position. FIG. 5 - means in the "standing position while resting only on the rear wheels, Fig.6 means when moving up the stairs in the standing position, Fig.7 means when moving up the stairs in the" sitting position, Fig.8 means when moving down the stairs in the position "Sitting. FIG. 9 means in the sitting position while resting on four wheels.

The transformed personal vehicle has a seat 1, the back 2 of which is connected to the seat 4 by means of a hinge 3. The seat is mounted on a supporting lever structure, which includes a supporting frame and a rear axle. The supporting frame has a front support post 5, a rear support post 6, pivotally connected by the upper and lower crossbars 7, 8. To give greater stability, each of the crossbars 7 or 8 can be

made in the form of a pair of interconnected levers parallel to each other and symmetrical with respect to the longitudinal axis of the frame. Thus, the supporting frame is a four-link articulated mechanism. One of the crossbars (pairs of crossbars), preferably the upper one, is equipped with a drive 9 mounted on the rear support column 6 and providing for the rotation of the crossbars in the vertical plane, and, consequently, a change in their angle of inclination to the horizontal and a change in the relative position (approach and distance) of the front and back support racks 5,6. A wheel pair (cluster) is attached to the front support post 5, for example, on a fork, the drive 10 of which, by means of an endless transmission AND, allows the wheels 12,13 of the wheel pair (front wheels) to rotate together around the common axis 14. The wheels 12, 13 of the wheel pair in one plane. Each of the wheels 12, 13 may have its own rotation drive. Each of the wheels 12, 13 may have its own brake. In the upper part of the support strut 5, a steering column 15 is fixed, designed to rotate the wheelset. On the head 16 of the steering column 15 there are handles and a vehicle control panel with controls, controls and indications. The steering column 15 can be made telescopic with the appropriate drive, and installed with the possibility of changing the angle of inclination. The vehicle is equipped with steps 17, which are advisable to fix in the lower part of the rear support post 6. In the upper part of the rear support post 6 (at the level of the knee of the person sitting in the stroller)

7 there is at least one actuator 18, designed to change the angle

chair tilt 1.

The supporting frame by means of at least one pivotally mounted and provided with a drive 19, a lever 20, is connected to the rear axle. The rear axle has a longitudinally oriented support and connecting element, which may be in the form of a longitudinal beam 21, as shown in the drawings, or the shape of a V-shaped frame or any other suitable shape. The connection unit of the rear drive wheels 22,23 can be made in various ways, one of which is presented in the Figures. Thus, a transverse beam 24 is attached to the support connecting element, on which, with the help of balancers 25, wheels 22.23 are equipped with rotation drives 26. Wheels 22, 23 can be mounted directly on the half shafts mounted on the transverse beam. Balancers can be equipped with drives. The device may not have a transverse beam and balancers, and the wheels can be mounted directly on the transverse axis. However, the use of balancers enhances the maneuverability and stability of the vehicle.

In order to facilitate movement along the steps, the device can be additionally equipped with two telescopic stops 27. The stops can be mounted on axles or half shafts near the wheels in planes parallel to the planes of the wheels (ie perpendicular to the axis). The stops 27 may have a curved working end. The length of the stops is selected so that the working end protrudes beyond the outer circumference of the wheel, i.e. the distance from the point of fixing the stop on the axis to the reference point of the stop exceeds the radius of the wheel. Each of the stops is equipped with a drive 28, providing its rotation, independent of

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wheel rotation. It is possible to provide both stops 27 with a common drive ensuring their rotation, independent of the rotation of the wheels.

Chair 2, or rather its seat 4, is mounted in the upper part of the rear support pillar, and, as already mentioned above, is equipped with at least one drive 18, designed to change the angle of inclination of chair 1 (seat). In addition, the chair may have a separate drive 29, providing a change in the angle of the backrest with respect to the seat. Both drives 18 and 29 provide transformation of the chair from the sitting position to the lying and standing position.

Batteries 30 may be located under the seat of the chair.

The tool is equipped with a control system, the gyroscopic elements of which are designed to ensure the stability of the structure when moving along uneven, inclined surfaces, when moving along flights of stairs and in other positions, including when the bearing base is minimized (when the front and rear wheels come closer together) and when “Standing when the seat and back of the chair are in a position close to vertical.

A personal vehicle operates as follows.

When moving the tool on horizontal surfaces, it is in the position shown in Figure 1: one of the front wheels 13 of the wheelset is raised to the idle upper position, the lever system of the support linkage structure is in a position in which the front end of the longitudinal beam 21 of the rear axle is under seat. The stops 27 are relatively stationary (do not rotate) and are oriented so that the protruding end does not interfere with the movement of the rear wheels 22,23. A man sitting in a chair, using the steering column 15 and the remote control located on her

i (steering head 16, controls the movement of funds. Raising or lowering

seat 1 to the height necessary for a seated person by adjusting the angle of inclination of the cross-beams 7.8 (bringing the front 5 and rear 6 support posts closer or apart from each other) and lowering or raising one of the wheels 12 or 13 of the front wheelset. In the lowest possible state, both wheels 12.13 of the wheelset are in contact with the abutment surface (Fig. 9). In the standing position (Fig. 5), the device’s design and control system allows maintaining a stable position when both wheels 12, 13 of the wheel pair are separated from the supporting surface and the back and seat of the chair are in the same plane, with a balance close to the vertical position.

To move the vehicle up the flights of stairs (Fig. 6, Fig. 7), the distance between the front and rear wheels changes in order to set the necessary wheelbase corresponding to the parameters of the stairs. This is achieved by changing the position of the cross members 7.8 and the lever 20 by means of appropriate drives. The steps are raised by means of the joint rotation of the wheels 12.13 around the axis 14 under the influence of the drive 10 and with the simultaneous operation of the drive wheels 22, 23. In this way, low steps are overcome. To climb the high steps, telescopic stops 27 are used. Their rotation drive is turned on and when the working ends of the stops (protruding beyond the outer circumference of the corresponding wheel) contact the surface of the step, the load is transferred to the stops. After the rear wheels 22, 23, based on telescopic stops 27, will occupy a position above the next step, and the stops themselves under

, / 2 CM

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the actuators 28 will take a vertical position, under the influence of the vehicle’s gravity, the telescopic stops of the stops are folded (the inner tube enters) and the support passes to the rear wheels, which roll along the horizontal surface of the step. At the same time, the stops turn, the telescopic tubes of which are again in the extended position, in which their working ends protrude beyond the outer circumference of the wheel. When the stops contact the next step, the process repeats. This “combined movement combining rolling and walking movement allows you to easily overcome flights of stairs, regardless of the width of the steps and their height.

It should also be noted that the inventive device when moving along stairs always has a support of at least three points that do not lie on one straight line. This provides increased stability compared to the prototype, which when climbing the stairs periodically there is a situation based on two points. Thus, when mixing the inventive device does not require the assistance of an assistant and does not need to resort to additional support on the railing.

The presence of balancers allows you to call on the curbs at an angle when one of the wheels begins to rise earlier than the other. In addition, the balancers allow the device to move more smoothly on uneven surfaces when the wheels are at different levels, and at the same time overcome obstacles, maintaining the position of the chair as if moving on horizontal surfaces. Moving a vehicle down the flights of stairs (Fig. 8)

also carried out with the joint rotation of the wheels of 12.13 wheelset. In this case, the stops 27 may be inoperative, relatively stationary position.

The control system allows you to maintain the horizontal position of the seat when moving along a horizontal or inclined supporting surface, smooth or uneven, as well as when climbing / descending stairs, regardless of the steepness of the tilt. However, if necessary, you can change the tilt of the seat, as well as the height of the steering column.

Thus, an individual vehicle for people with reduced mobility has high maneuverability, increased stability and maneuverability with a relatively simple design and control system. The vehicle allows you to move up and down stairs, while maintaining stability without resting on the railing.

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Claims (5)

1. Transformable personal vehicle containing a seat, mounted on a supporting lever structure mounted on a wheel base, including a wheel pair, equipped with a drive that allows the wheels to rotate together around a common axis, while the tool is equipped with drive systems that provide a change in the relative position of its elements , as well as an autonomous power supply system and a control and monitoring system, characterized in that the supporting linkage structure comprises a supporting frame and the rear axle pivotally connected by at least one lever, the supporting frame includes a front support post, a rear support post, pivotally connected by an upper and a lower cross member, said wheelset is mounted on a front post with a drive enabling the wheels to rotate together about a common axis, and an additionally mounted steering column designed to rotate the said pair of wheels, the supporting frame is equipped with a drive that provides changes in the angle of inclination to the horizon of the said crossbars, n and a chair is fixed to the upper part of the rear support post, the rear axle has a longitudinally oriented support and connecting element and a transverse axis or a transverse beam with a transverse axis or with two semi-axes, directly on which or with the help of balancers two drive wheels are fixed.  2. The device according to claim 1, characterized in that the rear axle is additionally equipped with two telescopic stops mounted on the said axis or half shafts in planes parallel to the planes of the wheels, while the working end of each of the stops protrudes beyond the outer circumference of the corresponding wheel, the telescopic stops are provided at least one drive that ensures their rotation and is independent of the wheel rotation drive, and the axes of rotation of the stops coincide with the axes of rotation of the wheels.  3. The device according to claims 1 and 2, characterized in that the longitudinally oriented support and connecting element is a longitudinal beam or frame structure.  4. The device according to claims 1, 2 or 3, characterized in that the chair is pivotally mounted, equipped with a drive, the back and seat of the chair are also pivotally interconnected with the possibility of changing the angle of inclination, including the position at which they are in one, common for them the plane, including the vertical. 5. The device according to claims 1 to 3 or 4, characterized in that each of the said cross-pieces is a pair of levers parallel to each other.