SK7616Y1 - Antiskid device for automobile wheels with disk arranged close to internal lateral plane of wheel - Google Patents

Abstract

On a carrier unit (4), connectable from the outside of a disc (3) of the wheel, is mounted an extension element (8), displaceable in the axial direction of the wheel. In it are placed the arms (9), rotatable about an axis parallel to the axis of the wheel and at ends with the interaction surfaces (10). Those in the working position seal on the peripheral surface of a tire (1). The extension element (8) is mounted in a guide formed of the pipes (6). On each pipe (6) is adjustably positioned one outer pipe (5) connected to the extension element (8). With him are connected the tension springs (7), arranged in the pipes (6). The other ends of the tension springs (7) are fixed to the carrier unit (4). The device comprises a pneumatic drive with a source (13) of pressure air and a bellow (15) for the movement the extension element (8). The swivelling of the arms (9) with the surfaces of action (10) support pneumatics engines (16). The control of the drive is electric, remote by the control members (14).

Description

The technical solution relates to the field of anti-skid devices, namely anti-skid devices for automobile wheels with a disc arranged at the inner lateral plane of the wheel.

BACKGROUND OF THE INVENTION

Anti-skid devices for automobile wheels are known which are mounted on the automobile wheel. The anti-skid elements are generally formed in the form of adjustable arms that are provided with engagement surfaces. If necessary, these arms are brought into the working position in which the engagement surfaces abut the peripheral surface of the tire. The arms are brought into working position either manually or by means of systems which are mechanical or pneumatic, resp. electric. Pneumatic control systems are mostly used in commercial vehicles.

Known anti-skid devices for commercial vehicle wheels are complex due to the construction of commercial vehicle wheels, have a large number of moving parts and have a high space requirement. In addition, the various types of known solutions have different properties, differing in reliability, price, and real usability.

The essence of the technical solution

The object of the invention is to provide an anti-skid device for automobile wheels with discs arranged at the inner lateral plane of the wheel so that the device does not protrude substantially beyond the outer lateral plane of the wheel, beyond its outer and outer working plane. .

This object is achieved by an anti-skid device for automobile wheels with discs arranged at the inner lateral plane of the wheel, having a support member attachable externally to the wheel disc according to a technical solution, the principle being that a retractable body in which arms mounted at the ends are rotatable about axes parallel to the axis of the wheel and engaging surfaces at the ends of which engage the peripheral surface of the tire in the working position.

The anti-skid device is mounted on a support member in a guide, which is preferably formed by at least two tubes mounted on the support member, each of which tubes displaceably supported by an outer tube attached to the telescopic body.

In the tubes mounted on the support member, tension springs are provided with one end attached to the support member and the other ends to the extension body.

The anti-skid device is equipped with a drive for sliding the telescopic body and for pivoting the arms with the engagement surfaces. The drive, which is pneumatic, comprises a source of compressed air, a bellows for moving the telescopic body, pneumatic motors for pivoting the arms with engagement surfaces and control members. The control elements are equipped with remotely electrically operated control elements.

The arms are rotatably supported on beams which are radially displaceably and sprung mounted in the telescopic body. In this way, the engagement surfaces are contacted with the circumferential surface of the tire while driving.

BRIEF DESCRIPTION OF THE DRAWINGS

One possible embodiment of the anti-skid device according to the invention is shown in the accompanying drawings, in which Figure 1 is an oblique view of the anti-skid device in assembled condition prior to mounting on a wheel; Figure 2 the anti-skid device according to Figure 1 without a slide; Figure 4 shows a wheel-mounted anti-skid device in an oblique view, Figure 5 a wheel with the anti-skid device mounted in the direction of travel of the vehicle; 1 without wheel, fig. 8 in oblique view wheel with anti-skid device with turned arms, fig. 9 cross-section of wheel with anti-skid device in position according to fig. 8, fig. 10 in oblique view wheel with anti-skid glow 11 shows a section through the wheel with the anti-skid device in the position shown in FIG. 10.

SK 7616 Yl

Example

The anti-skid device has a support member 4, which is mounted externally to the wheel disc 3 of the tire 1 in a conventional manner, e.g. through screws and nuts. The disc 3 is located closer to the inner lateral plane of the wheel where it is connected to the rim 2. Thus, the anti-skid device practically does not protrude above the outer lateral plane of the wheel when mounted on the wheel or in the working position. This type of wheels have e.g. trucks, trucks, etc.

A guide is mounted on the support member 4, on which a sliding body 8 is displaceably mounted in a direction parallel to the wheel axis. The guide is in the embodiment described formed by two tubes 6 with axes parallel to the wheel axis. The tubes 6 are fastened to the support member 4 and the outer tubes 5 are slidably mounted thereon fastened to the withdrawable body 8.

Inside the tubes 6, tension springs 7 are positioned between the support member 4 and the extension body 8, which attract the extension body 8 to the support part 4.

In the telescopic body 8, the arms 9 are rotatable about axes parallel to the wheel axis and are provided at the outer ends with engagement surfaces W that are substantially perpendicular to the arms 9.

For the displacement of the telescopic body 8 and for the rotation of the arms 9, the device is provided with a drive which in this case is pneumatic. The drive comprises a compressed air source 13 arranged on the support member 4. The compressed air source 13 is connected via control members 14 to a bellows 15 for extending the telescopic body 8 and to pneumatic motors 16 for pivoting the arms 9 with the engagement surfaces 10). The control members 14 have electrically operated control elements for remote control from the car cabin. The connection between the components of the pneumatic circuit may be made by pressure hoses (not shown).

In the mounted position, the device is attached to the disc 3 by means of the support member 4 and the tension springs 7 attract the extension body 8 to the support member 4. The arms 9 with engagement surfaces 10 are pivoted to the basic position in which they do not project radially above the periphery of the extension body 8.

If it is necessary to bring the anti-skid device into working position, i. j. when the engagement surfaces 10 engage the circumferential surface of the tire 1, the electric control source 14 connects the compressed air source 13 to the inner space of the bellows 15 on the basis of an electrical signal issued remotely from the car cabin.

By extending the bellows 15, the extension body 8 is pushed out of the wheel against the force of the tension springs 7. Another electrical signal received by the respective control member 14 connects the compressed air source 13 to the pneumatic motors 16, which rotate the arms 9 to the engagement surfaces 10. In this state, the compressed air is released from the bellows 15 and the tension springs 7 pull the slide 8 to the support 4. In this movement, the engagement surfaces 10 move to a position just above the peripheral surface of the tire 1. The anti-skid device is in the working position. The engagement of the engagement surfaces 10 of the arms 9 on the circumferential surface of the tire 11 during travel makes it possible that the arms 9 are rotatably supported on beams 11 which are spring-loaded and displaceable in the radial direction in the slide-out body 8. The springs 12.

In order to return the anti-skid device to the home position, the slide body 8 is first extended from the wheel as described above, the engagement surfaces 10 thus coming out of contact with the peripheral surface of the tire. In this position, on the basis of the electrical signal, the respective control member 14 is brought into a position in which compressed air is released from the pneumatic motors 16 and brought into their second compartments, whereby the arms 9 turn back to their home position via transmission. In this state, after the compressed air has been released from the moss 15, the pull-out body 8 is retracted by the tension springs 7 into the basic position.

The arms 9 are four in the exemplary embodiment. Their number may be different according to spatial conditions.

PROTECTION REQUIREMENTS

Claims (8)

Anti-skid device for automobile wheels with discs (3) arranged at the inner lateral plane of the wheel, the support member (4) of which can be attached from the outside to the wheel disc (3), characterized in that the support member (4) is a sliding body (8) mounted in a sliding direction parallel to the wheel axis, in which the arms (9) rotatable about the axes parallel to the wheel axis are provided at the ends with engagement surfaces (10) which engage the circumferential surface of the tire (D) Anti-skid device according to claim 1, characterized in that the telescopic body (8) is mounted on a support part (4) in a guide. Anti-skid device according to claim 2, characterized in that the guide is formed by at least two tubes (6), on each of which there is a slidingly mounted outer tube (5) fixed to the extension body (8). SK 7616 Υ1 Anti-skid device according to claim 3, characterized in that the tension springs (7) are fixed in the tubes (6) with one end attached to the support member (4) and the other ends to the extension body (8). Anti-skid device according to claim 1, characterized in that it is equipped with a drive for moving the telescopic body (8) and for pivoting the arms (9) with the engagement surfaces (10). Anti-skid device according to claim 5, characterized in that the drive, which is pneumatic, comprises a compressed air source (13), a bellows (15) for sliding the telescopic body (8), pneumatic motors (16) for pivoting the arms (9) with engagement surfaces (10) and control members (14). Anti-skid device according to claim 5, characterized in that the control members (14) 10 are provided with electrically remote control elements. Anti-skid device according to claim 1, characterized in that the arms (9) are rotatably supported on beams (11) which are radially displaceably and sprung mounted in the sliding body (8). 15 3 drawings