RU2674218C2 - Car tire with removable protector - Google Patents

Abstract

FIELD: vehicle equipment and accessories.SUBSTANCE: car tire with a removable tread includes a tread with seats for installation of removable inserts with tread surfaces, having for each road situation the corresponding coefficient of friction. Each of the removable inserts contains a continuous additional locking plate located above the steel cord of the insert, having a protrusion around the perimeter for additional fixation in the tread and the side of the tire. Seat for the insert has a sharp inner corner, as well as narrow pockets for the fixing insert plate along the entire perimeter of the seat for additional fixation in the tread and its side part.EFFECT: technical result is an increase in the level of safe movement of the vehicle by preventing the wheels from slipping when starting to move from a standstill and braking.2 cl, 3 dwg

Description

Car tire with removable tread.

The present invention relates to the field of automotive engineering, and more specifically to the design of automobile tires designed to increase the adhesion force of the wheels to the road surface.

From the prior art, tire designs with a removable tread made on the basis of type P tires with a removable tread (type PC bus) are known. The tire consists of individual parts: a housing having a textile carcass with a meridional arrangement of cord threads and rigid tread rings reinforced with steel cord and spaced around the circumference of the tire (VL Biderman. Car tires (design, calculation, testing, operation), M. , 1963, p. 23, Fig. 19). The disadvantages of this technical solution are:

- unprotected tread rings on the carcass with meridional filaments do not provide the necessary stiffness of the tire when it perceives lateral forces;

- increases the total thickness of the tire on the treadmill;

- reduced contact pressure between the tire and the tread rings;

- reduced level of safe movement of the car, due to the likelihood of slipping of the tread rings from the seats.

The problem to which the invention is directed, is to increase the adhesion force of the wheels to the road surface, to prevent wheel slippage during braking, and to improve operational characteristics.

This problem is solved due to the fact that the claimed design of a car tire is a design made on the basis of a type P tire, containing on the cushion layer (breaker) a tread with seats for installing removable inserts with tread surfaces having the required for each traffic situation, corresponding coefficient of friction (roughness). The inserts in their cross section have sharp corners (internal) around the perimeter for tight fit into their seat on the tread surface, in addition, the insert contains a continuous additional fixing plate located above the metal cord of the insert, and having a protrusion around the perimeter for additional fixation in tread and side of the tire. The place for installation of the insert on the tread should have a sharp internal angle, as well as narrow pockets, for the fixing plate of the insert, around the perimeter of the seat for additional fixation in the tread and its side.

The technical result achieved is the use of removable inserts of different roughness, with their rigid fastening along the treadmill and the side surface of the tread, to ensure the level of safe movement of the car and prevent wheel slippage when starting to move and braking.

The invention is illustrated by drawings, which do not cover and, moreover, do not limit the entire scope of the claims of this technical solution, but are only illustrative materials of a particular case of execution. The drawings show:

In FIG. 1 - plot (fragment) of the radial section of the tire;

In FIG. 2 - section (fragment) of the cross section of the tire;

In FIG. 3 - insert with a fixing plate (with a slit).

A car tire 1 with a removable tread comprises removable inserts 2 mounted in their seats along the circumference of the tire rolling surface. The insert 2 is equipped with a mounting plate 3 mounted in the body of the removable insert 2 and located above the steel cord 4. The mounting plate 3 has protruding edges for mounting the removable insert 2 in the body of the tire tread. In the tire seats, along the inner perimeter, there are recesses 5 for the mounting plate 3. The surface 6 of the removable insert may have any desired degree of roughness depending on the characteristics of the road situation.

Claims (2)

 1. A car tire with a removable tread, including a tread with seats for installing removable inserts with tread surfaces having a corresponding friction coefficient for each traffic situation, characterized in that each of the removable inserts contains a continuous additional fixing plate located above the metal cord of the insert and having protrusion around the entire perimeter for additional fixation in the tread and side of the tire. 2. A seat for installing an insert of a car tire according to claim 1, characterized in that it has a sharp internal angle, as well as narrow pockets for the fixing plate of the insert around the entire perimeter of the seat for additional fixation in the tread and its side.

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