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Title:
VEHICLE WHEELS SLIDING PREVENTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2001/058706
Kind Code:
A1
Abstract:
The invention concerns the devices, which have hard elements, involving the separate parts of wheel protector and interacting with soil. The device, containing the frame (1), fixed on the external side of wheel tyre (2), is parallel to it; set in the frame expanding in the radial direction tenons and tenons expanding and folding mechanism, according to the invention, is provided, in addition, by the governing system (25), which is set on the beam (26) of a vehicle back shaft, the tenons mechanism of expanding and folding is connected with tenons by flexible cables (19), which by one ends are fixed to the tenons, while by the tips (20) of the second ends successively interact with the governing system. The tenons are made three-sectioned (5, 6, 7); the sections are connected with each other jointly and are sprung relatively one another. The governing system is provided by two telescopic elements (27) and (28), governed from a vehicle saloon.

Inventors:
Harutyunyan, Hrachya (Vardanants str. 73, 0 Yerevan, 37507, AM)
Application Number:
PCT/AM2001/000004
Publication Date:
August 16, 2001
Filing Date:
February 08, 2001
Export Citation:
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Assignee:
Harutyunyan, Hrachya (Vardanants str. 73, 0 Yerevan, 37507, AM)
International Classes:
B60C27/10; B60C27/12; B60C27/14; (IPC1-7): B60C27/10; B60C27/12; B60C27/14
Domestic Patent References:
WO1998025778A11998-06-18
WO1997000056A11997-01-03
WO1997000335A11997-01-03
Foreign References:
US3016079A1962-01-09
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Claims:
CLAIMS
1. The vehicle wheels sliding prevention device contains the frame, fixed on the external side of wheel tyre parallel to it, set in the frame, expanding in the radial direction, tenons, which include joint folding sections, the last ones of them involve the separate parts of tyre protector and interact with soil, as well as the tenons expanding and folding mechanism and is characterized in that it is provided, in addition, by governing system, set on the vehicle back shaft beam and governed from the vehicle saloon ; moreover, the mechanism of tenons expanding and folding is connected with tenons by flexible cables, which by one ends are fixed to the tenons, while by the tips of the other ends successively interact with governing system.
2. The device of claim I iv characterized in that each tenon consists of three successive joint sections ; moreover, the first section is sprung relatively to the frame, the second section is sprung relatively to the first one, and the third section is sprung relatively to the second one.
3. The device of claims 1 and 2 is c7zaracterizerl in that there are radial slots in the frame for tenons section placing in the clubbed shape, there is set a pair of guides with linear slots in each radial slot ; there is set in slots the axis joint of the first sections with transferring possibility, sprung from both ends by a spiral springs, involving guides.
4. The device of claim 1 is characterized in that tenons expanding and folding mechanism is made in the shape of circular element, which is fixed on the internal side of wheel tyre parallel to it and flexible cables; there are tips on one ends of the cables, and there are arched slots corresponding to the tenons number on the circular element ; moreover, slots width is less than a ball diameter, while there are cuttings on one ends of slots corresponding to the ball diameter, as well as a rotating clamp, for ball's fixation and forcing out, which interacts with governing system.
5. The device of claims 1 and 4 is characterized in that the governing system is provided by two telescopic elements, one of them interacts with ball tips of the flexible cables, while another interacts with rotating clamps.
6. The device of claim 5 is characterized in that the telescopic elements are made in the shape of sprung fingers, their not exploited ends are jointly connected with the arms of two armed rotating lever, one of the arms of the latter is connected with driving gear.
Description:
VEHICLE WHEELS SLIDING PREVENTION DEVICE TECHNICAL FIELD OF THE INVENTION The invention concerns the devices for wheels sliding prevention, they have hard elements, enclosing the separate parts of wheel protector, and can interact with soil.

BACKGROUND OF THE INVENTION It is known a device for the vehicle wheels sliding prevention containing a frame, which is fastened on the external side of the tyre parallel to it, set in the frame expanding in the radial direction tenons, one ends of which involve the separate parts of tyre protector and interact with soil, as well as the mechanism of tenons expanding and folding. (International application PCT/HU97/00056, dated 01.10.97, IPC: B600C 27/12) Setting and removal of known device is fulfilled by hand, separately for each wheel.

It is known, taken as a prototype of the same destination, a device, which contains a frame, fastened on the external wheel tyre side parallel to it; set in the frame expanding in the radial direction tenons, including joint folded sections, the last ones of which involve the separate parts of tyre protector and interact with soil, as well as the mechanism of expanding and folding tenons. (International application PCT/NO 97/00335, dated 15.12.97, IPC: B60C 27/24).

The device has the same above-mentioned defects.

SUMMARY OF THE INVENTION The invention task is to govern the tenons expanding and folding from the vehicle saloon.

The invention essence is that the vehicle wheels sliding prevention device, containing a frame, fixed on the wheel tyre external side parallel to it, set in the frame expanding in the radial direction tenons, which include joint folding sections, the last ones of them enclose the separate parts of tyre protector and interact with soil, as well as a mechanism of tenons expanding and folding, correspondingly to the invention, is furnished, in addition, with governing system, which is set on the vehicle back shaft beam and is governed from the

vehicle saloon ; moreover, the tenons expanding and folding mechanism is connected with tenons by means of the flexible cable, which by one ends are fastened on the tenons, and by the tips of the other ends consecutively interact with the governing device.

In figure 1 the general air of the vehicle wheel is displayed with fastened on its external side suggested device in its initial position (the tenons are folded), as well as tenons expanding and folding mechanism's rim, fixed from the wheel internal side. For more clearness the rim is conventionally displayed on the definite distance from the wheel tyre.

In figure 2 the tenon in expanding shape is displayed.

In figure 3 the wheel's transverse cutting with the folded tenon is scematically viewed, and in figure 4, corresponding to this position, tenons of ball tip position are pictured.

In figure 5 the transverse cutting of wheel with the disclosed tenon is schematically displayed, and in figure 6 corresponding to this position tenons of ball tip position are viewed.

In figure 7 the assembly of rotating clamp is displayed.

In figure 8 the version of governing system exploitation is pictured.

The frame (1) is parallel fixed on the wheel tyre (2) from its external side (see fig. 1).

In the frame (1) of the device there are radial slots (3) in which the tenons (4) are set, the tenons in the initial position are folded, as it is displayed in figure 1. The tenons (4) are fixed, on the central part of frame (1) from its internal side and are movable to the radial direction.

In figure 1 there is displayed the version with four tenons, though the tenons number can be other, i. e. odd and even. Each tenon (4) consists of three successive jointly folded sections (5), (6), (7), the last one (7) of them involves the part of tyre (8) protector (9) and interacts with soil in the time of a vehicle moving.

In each radial slot (3) of the frame (1) there are fastened a pair of guides HO), which have linear slots (11). The axis (12) of joint's first section (5) of tenon is set in slots (11) with transferring possibility.

The axis (12) from both ends is provided by spiral springs (13), which involve the guides (10).

To the first section (5) by means of axis (14), the second section (6) is jointly connected, while to the section (6) by means of axis (15) is jointly connected the third one, i. e. the last section (7).

The first section (5) by springs (13) is sprung relatively to the frame, the second section (6) by springs (16) is sprung relatively to the first section (5), and the last section (7) by springs (17) is sprung relatively to the second section (6). The first section (5) has the

possibility to move along slots (1). The second slot (6), the arms of the latter are fixed on the axis (14), has the possibility of turn together with axis (14).

Its turn in the direction to tyre is made under the influence of springs (16), while to the reverse direction under the influence of flexible cable (19), the end of the latter in the place of fastening to the axis (14) forms spire around it, as it is displayed in figure 2. The section position (6) relatively to the tyre is defined by the ratio of these two influences. The third section (7) has the possibility of rotation around axis (15) and in the neutral position is placed under the angle of 100° to the section (6). Due to fixing of one end of spring (7) to the section (6), while another to the section (7), section (7) is sprung both in the direction of turn to the tyre and in the reverse direction.

The same result can be reached by using of two springs, one of them will spring the turn to the tyre, while the other from the tyre. The version of execution by means of one spring is displayed in figure 2.

The mechanism of tenons expanding and folding consists of a rim (18), which is parallel attached to the tyre from its internal side and from the cables (19), correspondingly to the tenons number. One end of the cable (19) is fastened to the joint of the second section (6), and another end of the cable has tip (20) in the shape of a ball. There are arched slots (21) on the rim (18) correspondingly to the tenons number. Slots width is less than ball diameter (20), there is a little cutting (22) on one of the slot's ends, which corresponds to the ball (20) diameter. In the cutting (22) there is set the rotating clamp (23) for fixation and forcing out the ball (20). The clamp (23) has a lever (24), orientated perpendicular to the axis of clamp turn. The governing system (25) is set on the vehicle beam (26) of back shaft. The system has two mobile elements (27) and (28), made, for example, in the shape of fingers with the possibility of axis transferring. The element's position (27) corresponds to the arched slots (21) radius, while the element's (28) position corresponds to the levers (24) distance from the wheel axis. The elements (27) and (28) positions are governed from a vehicle saloon.

Governing can be realised both by mechanic manner, for example, by cables, and otherwise, for example, hydraulic, pneumatic, electromechanic, etc. In the execution version, demonstrated in figure 8, the elements (27) and (28) are made in the shape of sprung fingers, while their not exploited ends are jointly connected with the arms of two-armed rotating lever (29). Demonstrated fingers (27) and (28) position in the draught corresponds to the initial position. The lever's end (29) is connected with drive as it is shown by arrow in the draught.

In one of the execution versions the drive is made handy in the shape of a lever, like the lever drive of handy brake.

The device is exploited in the following manner.

In the initial position the tenons (4) are in the slots-nests (3), the cables (19) are strained and hold the springs (13) in the compact state, ball tips (20) of cables are situated in the cuttings (22) of arched slots (21), the clamps (23) are situated in such a position that their levers (24) are perpendicular to the rim's (18) plane, an element (28) of governing device is taken in and under the vehicle moving does not interact with levers (24).

For device exploitation an element (28) is moved out, while an element (27) is taken in, by their governing from the vehicle saloon. This action is executed by a vehicle slow motion. The element (28), being transferred into advanced position, correspondingly interacts with all the levers (24) and turns the clamps (23) ; that brings to the, taken in turn, forcing out of the ball tips (20) from the cuttings (22). Under the influence of strained cable (19), the ball tip (20) slides along the external rim ( 8) surface till getting the slot (21) end. This tip (20) transferring corresponding to the slot (21) length size is enough for springs (13) freeing and forcing out the clubbed sections of tenons from slot-nest.

Due to fixing the governing block (25) on the upper surface of a vehicle back shaft of beam, i. e. the maximum remoteness from the soil, the disclosing process of tenons is fulfilled within the time of a vehicle wheel turn per a half-turn, while the tenon manages to take working position before contact with the soil. Under the springs (16) and (17) influences, the sections (6) and (7) of the tenon are pressed to the corresponding tyre surfaces.

The process of tenons folding is made under the influence of forcing out the element (27) from the vehicle saloon, simultaneously taking in an element (28). This process is also executed under the slow motion of a vehicle.

The advanced element (27) successively interacts with ball tips (20), transferring them along rim (18) surface up to the other end of the slot, where the cutting (22) is set, and taking in them into these cuttings. Simultaneously the second ends of cables, pressing the springs (13), take in sections (5) into the slots-nests. With it sections (6) turn, as the cable end forms the spire around axis (14). Tenons expanding-folding can be fulfilled both in advance version of a vehicle motion, and in the back version of a vehicle motion. The constructive difference between these versions of execution is in the rim (18) attaching to the tyre by its one or another surface




 
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