KR20010093178A - Self-propelled drive wheel - Google Patents

Abstract

The invention relates to a vehicle comprising a motor (5; 12; 20, 21; 32, 33) and one or more rotating elements (1, 2; 15; 18, 19; 30, 31) moving along the ground . To propel the vehicle, the motors 5; 12; 20, 21; 32, 33 are adapted to influence the instantaneous position of the vehicle's center of gravity with respect to the ground, in this way the rotating elements 1, 2 15; 18, 19; 30, 31) rotate under the influence of gravity. The vehicle is compact and has a simple drive mechanism.

Description

Self-propelled drive wheels {SELF-PROPELLED DRIVE WHEEL}

In general, vehicles are known in a wide variety of structures.

The invention relates to a vehicle according to the preamble of claim 1.

1 is a schematic perspective view of an embodiment of a vehicle according to the invention,

2 is a schematic cross-sectional view of a portion of the vehicle shown in FIG. 1,

3 is a schematic side view of the vehicle viewed from the direction of the arrow of FIG.

4 is a schematic cross-sectional view of a portion of another embodiment of a vehicle according to the invention,

5 is a schematic side view of the vehicle as viewed in the direction of the arrow of FIG. 4,

6 is a schematic perspective view of another embodiment of a vehicle according to the invention,

7 is a schematic front view of another embodiment of a vehicle according to the invention,

8 is a schematic front view of another embodiment of a vehicle according to the invention.

It is an object of the present invention to provide a compact vehicle with a simple steering mechanism. According to the invention this object is achieved by means mentioned in the characterizing part of claim 1.

The invention will be explained in more detail with reference to the accompanying drawings.

1 to 3 are schematic perspective, sectional and side views, respectively, of a first embodiment of a vehicle according to the invention. The vehicle comprises two wheels 1, 2 interconnected by a frame member 3. The middle part of the frame 3 is connected at both sides to a cover disc 4 (shown in FIG. 2), which cover disc 4 is arranged along the inner side of the corresponding wheels 1, 2. However, it is not connected to the wheels 1 and 2. Each disc 4 itself is connected to a drive unit arranged in the corresponding wheels 1, 2, which drive motor 5, drive wheel 6 and a capacitor 7 (accumulator). (Shown in FIGS. 2 and 3). It is also possible to make the drive unit heavier by providing additional weight to each drive unit if necessary. Each motor 5 is adapted to drive the drive wheel 6 by means of, for example, a worm wheel configuration, with the drive wheel 8 being on the inner side of the wheels 1, 2. The tooth part which cooperates with is provided.

The drive unit connected to the frame 3 is suspended freely from the axis of the wheel through the bearing. Thus, by being suspended in the physical axis of rotation of the wheels 1 and 2, a rigid component part is provided. The drive wheel 6 driven by the motor 5 ensures that the drive unit loses its equilibrium position so that the center of gravity of the vehicle is displaced and the wheels 1 and 2 are rotated by the action of gravity. The vehicle tends to lower its center of gravity. However, the motor 5 continuously raises the center of gravity of the vehicle, whereby the wheels 1 and 2 continue to rotate and the vehicle moves forward almost linearly.

The motors 5 can work together to drive the two wheels 1, 2. When the direction of rotation of one of the motors 5 is changed, the wheels 1 and 2 will rotate in opposite directions and the vehicle will rotate about the vertical center axis. Therefore, it can affect the direction of movement of the vehicle. In addition, a control system in which the motor 5 does not drive both wheels, drives one of the two wheels 1, 2 or selectively drives both the wheels 1, 2 is transported. Can be provided in the sieve.

The wheels 1 and 2 are made of at least one of synthetic material and metal, the diameter of which is determined by the application and function of the vehicle. An outer disk 9 with one or more of spokes and openings may be provided on the outer surface of the wheels 1, 2. It is also possible to use one or both of one or more rollers and one or more blades (or outer rings) in place of the wheels.

In another embodiment, not shown, the vehicle comprises only one motor 5 which is installed on one of the wheels 1, 2 or in the center of the frame 3. Thus, this single motor 5 can drive either one of the two wheels 1, 2 or both wheels 1, 2. The vehicle can be steered by adjusting the driving ratio between the two wheels 1 and 2.

In another embodiment, not shown, the frame 3 is not connected to the drive unit. In this case, together with the middle part of the frame 3, the cover disc 4 is suspended on the axis of the wheels 1, 2 via a bearing, which is freely rotatable and not restrained from the drive unit. An advantage of this embodiment is that the fully independent drive unit can steer the vehicle more directly. However, when the vehicle moves, it is more difficult to keep the frame 3 stable in a fixed position with respect to the ground.

This vehicle has excellent operability and can be steered accurately. In addition, vehicles can easily ride small obstacles without causing harmful consequences. This vehicle can be remotely controlled by a computer (not shown) associated with the vehicle, for example via a transmitting and receiving unit.

According to the above, the motor (s) 5 are caused to cause the drive weight portion (for example constituted by the motor 5 with its energy source) to rotate about the axis of rotation of the wheels 1, 2. The center of gravity of the vehicle is displaced, but is displaced by other means, for example by means of a motor (s) 5 and using a slidable outward element (not shown: for example, a telescopic element). By doing so, the center of gravity of the vehicle may be displaced.

4 and 5 are cross-sectional and side views of another embodiment of the vehicle according to the invention. For simplicity, only one wheel 10 of the two wheels is shown. A motor 12 for driving the worm element 13 which cooperates with the worm wheel 14 with respect to the axis of the wheel 10 is provided in the frame 11 connecting the two wheels. Capacitors (not shown) and additional weights (if any) constitute drive weights, which are rotated about the axis of wheel 10 by worm wheel features 13, 14 and motor 12. When driven, the drive weight causes the wheel 10 to move. Other arrangements with either or both of the gear wheels and gear rings are also possible. Either or both of the gear wheel component and the worm wheel component are preferably disposed in a closed casing. Thus, the driving is prevented from being adversely affected.

6 is a schematic perspective view of another embodiment of a vehicle according to the invention. In this case, the roller or cylinder 15 in which the motor and the driving weight are disposed therein is used as the rotating element. The drive operates according to the same principle as described above, ie as the drive weight portion is displaced by the motor and in this way the center of gravity of the vehicle is raised. The roller 15 is provided with a steering mechanism 16 that affects the direction of movement thereof. The steering mechanism 16 comprises means for adjusting the instantaneous distance from the axis of rotation of the part of the roller 15 to the ground.

The distance adjusting means (not shown) mentioned in this embodiment is made up of an element (eg an inflatable ring) having a variable volume. In addition, optional elements not shown are elements that can be folded in and out or that can slide in and out (eg, stretchable elements). The steering mechanism also includes means for adjusting the instantaneous coefficient of friction of at least a portion of the roller 15. In addition, the vehicle further comprises two wheels or rollers interconnected by fixed axes. The vehicle may for example be used as a pressure roller.

7 is a schematic front view of another embodiment of a vehicle according to the invention. In this case, the vehicle is provided with a frame 17 suitable for fastening the device there. The wheels 18, 19 are also interconnected via the frame 17. Motors 20 and 21 and capacitors 22 and 23 constituting the drive weight portion are provided on the lower side of the frame 17. Gear wheels 24 and 25, which interlock with gear rings on the inner surfaces of wheels 18 and 19, are driven by motors 20 and 21.

A rail 26 which is rotatably fastened to the frame 17 (by the motor 27) is further provided on the frame 17, for example a device such as a camera 28 is movable along the rail. . The camera 28 is slidable along the rail 26. Thus, the vehicle can be used to observe objects that are not easily accessible.

8 is a schematic front view of another embodiment of a vehicle according to the invention. Even in this case, the vehicle is provided with a frame 29 suitable for fastening the device there. The wheels 30, 31 are interconnected via a frame 29. Motors 32 and 22 with energy sources (not shown) are provided on the lower side of the frame 29. Gear wheels that cooperate with gear rings on the inner surfaces of the wheels 30 and 31 are also driven by the motors 32 and 33. The frame 29 further includes two storage spaces 34 and 35, in which a load can be transported. In the center a larger rod 36 can be fastened.

The frame 29 comprises a parallelogram structure 37, by which the axes of rotation 38, 39 of the wheels 30, 31 are substantially displaceable in a direction perpendicular to one another. In this way, the vehicle is suitable for use on sloped ground. As a result, the portions of the frame 29 provided with the storage spaces 34 and 35 and the rod 36 are kept almost vertically oriented.

Claims (28)

Motors 5; 12; 20, 21; 32, 33, A vehicle comprising at least one rotating element (1, 2; 15; 18, 19; 30, 31) in contact with the ground during movement of the vehicle, To propel the vehicle, the motors 5; 12; 20, 21; 32, 33 are adapted to influence the instantaneous position of the vehicle's center of gravity with respect to the ground, in this way the rotating elements 1, 2 15; 18, 19; 30, 31), characterized in that the vehicle rotates under the influence of gravity. 2. The motor of claim 1, wherein the motors 5; 12; 20, 21; 32, 33 displace the drive weights 5, 7; 12; 20-25; 32-36 to influence the position of the center of gravity. Carrier characterized in that. 3. An element (e.g.) according to claim 2, wherein the motor (5; 12; 20, 21; 32, 33) is slidable outward and connected to the drive weights (5, 7; 12; 20-25; 32-36) For example, a telescopic element). Motor 5 (7) according to claim 2, wherein the motor (5; 12; 20, 21; 32, 33) has a drive weight (5, 7) about the axis of rotation of the rotating elements (1, 2; 15; 18, 19; 30, 31). 12; 20-25; 32-36) to influence the position of the center of gravity. The rotational axis of the rotating element (1, 2; 15; 18, 19; 30, 31) is a physical axis and the drive weights (5, 7; 12; 20-25; 32-36). Is a vehicle suspended on this axis. The contact surface of the vehicle with respect to the ground during movement is substantially in line, the straight line extending perpendicular to the ground and rotating elements (1, 2; 15; 18). 19, 30, 31, characterized in that the vehicle is located in the plane passing through the axis of rotation. The rotating element (1, 2; 15; 18, 19; 30, 31) is constituted by a roller (15), in which the motor (5; 12; 20, 21; 32, 33) and a drive weight part (5, 7; 12; 20-25; 32-36). 8. The vehicle according to any one of claims 1 to 7, wherein the vehicle is provided with a steering mechanism (16) that affects the direction of movement thereof. The at least one rotating element (1, 2; 15; 18, 19; 30, 31) has a corresponding rotating element (1, 2; 15; 18, 19) in order to influence the direction of movement of the vehicle. Means for adjusting the instantaneous distance from the axis of rotation of at least a portion of 30, 31 to the ground, characterized in that the vehicle is provided. 10. The vehicle according to any one of the preceding claims, wherein the vehicle is provided with two contact tracks which are passed once and which are substantially parallel and in contact with the ground, and which are two driveable rotating elements (1, 2; 15; 18). 19, 30, 31) characterized in that the vehicle. 11. Motor according to claim 10, wherein the motors 5; 12; 20, 21; 32, 33 do not drive both of the two rotating elements 1, 2; 15; 18, 19; 30, 31, or two rotating elements. Control system adapted to drive one of (1, 2; 15; 18, 19; 30, 31) or to selectively drive both two rotating elements (1, 2; 15; 18, 19; 30, 31) A vehicle provided in this vehicle. 12. The motor (5; 12; 20, 21; 32, 33) is provided with each of the rotating elements (1, 2; 15; 18, 19; 30, 31). Vehicle. 13. Each of the rotating elements (1, 2; 15; 18, 19; 30, 31) has a drive weight (5, 7; 12; 20-25; 32-36). A vehicle characterized by having a). 14. A motor according to claim 13, wherein the drive weights (5.7; 12; 20-25; 32-36) comprise a capacitor (7; 22; 23) and a source of energy such as at least one of a solar cell and a fuel can. (5; 12; 20, 21; 32, 33). The drive weights 5, 7; 12; 20-25; 32-36 are arranged substantially in the rotating elements 1, 2; 15; 18, 19; 30, 31. Characterized in that the vehicle. The motor according to any one of claims 12 to 15, wherein each of the two motors (5; 12; 20, 21; 32, 33) is a rotating element (1, 2; 15; 18, 19; 30, 31). A vehicle substantially arranged in one of the following. 17. Vehicle according to claim 10 or 16, characterized in that the axis of rotation of the rotating elements (1, 2; 15; 18, 19; 30, 31) is substantially aligned. 18. The motor according to any one of the preceding claims, wherein at least one of the motor (5; 12; 20, 21; 32, 33) and the drive weights (5, 7; 12; 20-25; 32-36). Is connected to the gear wheels 6; 24, 25, which can be driven by motors 5; 12; 20, 21; 32, 33, and also rotating elements 1, 2; 15; 18 19, characterized in that it is adapted to interlock with a gear ring (8) connected to 30, 31. 18. The motor according to any one of the preceding claims, wherein at least one of the motor (5; 12; 20, 21; 32, 33) and the drive weights (5, 7; 12; 20-25; 32-36). Is connected to gear ring 8, which can be driven by motors 5; 12; 20, 21; 32, 33, and also rotating elements 1, 2; 15; 18, 19; 30 And a gear wheel (6; 24, 25) connected to (31). 20. Vehicle according to claim 18 or 19, characterized in that the gear wheels (6; 24, 25) and the gear rings (8) are arranged in a substantially closed casing. 18. The motor according to any one of the preceding claims, wherein at least one of the motor (5; 12; 20, 21; 32, 33) and the drive weights (5, 7; 12; 20-25; 32-36). Is connected to the worm element 13, which can be driven by motors 5; 12; 20, 21; 32, 33, and also rotating elements 1, 2; 15; 18, 19; 30 Vehicle 31, characterized in that it is interlocked with the worm wheel (14) connected to. 18. The motor according to any one of the preceding claims, wherein at least one of the motor (5; 12; 20, 21; 32, 33) and the drive weights (5, 7; 12; 20-25; 32-36). Is connected to the worm wheel 14, which can be driven by motors 5; 12; 20, 21; 32, 33, and also rotating elements 1, 2; 15; 18, 19; 30 , 31) interlocked with a worm element (13) connected to the vehicle. 23. Vehicle according to claim 21 or 22, characterized in that the worm element (13) and the worm wheel (14) are arranged in a substantially closed casing. 24. The vehicle according to any one of the preceding claims, characterized in that the vehicle is provided with a frame (3; 11; 17; 29) suitable for fastening the devices (26-28; 34-36) thereto. Vehicle. The vehicle according to claim 24, wherein the frame (3; 11; 17; 29) comprises a connecting element between the rotating elements (1, 2; 15; 18, 19; 30, 31). 27. Vehicle according to claim 25, characterized in that the frame (3; 11; 17; 29) is connected to a drive weight part (5, 7; 12; 20-25; 32-36). The frame (3; 11; 17; 29) is supported by a bearing so as to be freely rotatable about the axis of rotation of the rotating elements (1, 2; 15; 18, 19; 30, 31) and drive weight (5, 7; 12; 20-25; 32-36). 28. The frame (3) according to any one of claims 25 to 27, wherein the frames (3; 11; 17; 29) comprise a parallelogram structure (37), by means of which the rotation elements (1, 2; 15; 18, 19; 30, 31, characterized in that the axes of rotation (38, 39) are substantially displaceable in a direction perpendicular to one another.