RU2540037C2 - Safe vehicle wheel - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: wheel consists of splitting leak-proof rim and pneumatic tubeless tire in the cavity of which resilient inner support is installed which support limits radial tire deformation and consists of segments (e.g., four segments). The segments are interconnected using lock of "puzzle" type. The support is fixed against displacements on splitting rim in pneumatic tire cavity by means of internal stresses occurring during wheel assembling (tying together splitting rim elements).

EFFECT: possibility of inner support mounting in field conditions and keeping vehicle mobility when tires are damaged with sudden drop of positive air pressure in them.

4 dwg

Description

The invention relates to elements of automobile wheels with pneumatic tubeless tires, intended for vehicles and allowing to ensure the possibility of movement with a sharp drop in internal excess air pressure in the tires of the vehicle.

Known elastic internal support company Hutchinson, mounted in the wheel of a vehicle (US patent No. 5246050) with a pneumatic tire 37 × 12,5R16,5 company Goodyear, consisting of two hemispherical parts connected by coupling bolts.

It is also known a vehicle wheel (patent RU No. 2291788) containing a sealed detachable rim and a pneumatic tubeless tire, in the cavity of which an internal collapsible support is installed, consisting of eight split segments fixed to the rim by threaded joints forming cylindrical radial cavities at the joints.

The disadvantages of this design are:

- the complexity of installation (dismantling) of the additional support due to the high complexity of the threaded connection;

- a large number of bolted joints;

- difficult access to the bolt connection of the fastening segments to the rim.

In addition, the presence of open cavities in the rim segments when the vehicle is moving only on the internal support (when the tire treadmill is torn off) leads to the accumulation of dirt, small particles and water in them and, as a result, damage to the threads and the inability to dismantle the support segments.

The closest known technical solutions (prototype) is a vehicle wheel (French patent No. 2695076) with a pneumatic tire 13.00R20 from Michelin (France) and a supporting inner element from Forverk (Germany). The support element of the Forverk company is a massive rubber ring of a special configuration, reinforced at the base with a metal cord.

The disadvantages of this support element are its inseparability and high rigidity, excluding the possibility of assembly (disassembly) of the wheel in the field.

The proposed safe wheel of the vehicle consists of a detachable sealed rim 2 and a pneumatic tubeless tire 3, in the cavity of which an elastic inner support 1 is installed, limiting the radial deformation of the tire and consisting of segments (for example, four) connected to each other by means of a puzzle-type lock.

The outer diameter of the support does not limit the radial deformation of the tire at the minimum permissible internal air pressure in it and, therefore, does not reduce the effectiveness of regulating the air pressure in the tire when the vehicle is moving in difficult road conditions and on soils with low bearing capacity . The support is fixed from displacements on the detachable rim in the cavity of the pneumatic tire by means of internal stresses arising during the assembly (pulling together of the elements) of the detachable rim, therefore the width of its base is greater than the distance between the sides of the detachable rim by an amount sufficient to create the required efforts, excluding mutual rotation of the tire, supports and rims after wheel assembly.

Reliable fixation of the segments is carried out by connecting locks of the "puzzle" type (Fig. 4) and internal stresses created in the assembly of the wheel (pulling together the elements of the detachable rim) in the elastic material of the support segments.

The technical result consists in providing the possibility of mounting (dismounting) the internal support in the field and maintaining the mobility of the vehicle in case of damage to the tires with a sharp drop in internal excess air pressure in them.

The technical result is achieved through the use of a lock of the "puzzle" type for connecting segments of the internal support to each other and its reliable fixation on the wheel rim.

The essence of the invention is illustrated by the drawings: FIG. 1 is a cross-sectional view of an assembled wheel, FIG. 2 is a longitudinal section of a support, FIG. 3 is a section of a support section in a section, FIG. 4 is a description of a connection of segments of a support.

Thus, the proposed design of the safe wheel will not affect the operational properties of the vehicle when it is driven on wheels with a nominal internal air pressure in the tires, it will provide the ability to move in difficult road conditions and on soils with low bearing capacity (it remains possible to regulate the air pressure in the tires) , will allow to maintain the mobility of the vehicle in case of damage to the tires with a sharp drop in internal excess air pressure in them, and will also provide Mounting (dismantling) of the internal support in the field.

Claims (1)

A safe wheel of a vehicle containing a detachable sealed rim and a pneumatic tubeless tire, in the cavity of which an elastic internal support is installed, characterized in that the internal support consists of segments interconnected by a puzzle-type lock and fixed from displacements on the detachable rim in the cavity pneumatic tires through internal stresses arising during the assembly of the wheel.

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