DEVICE FOR INCREASING TIRE TRACTION Russian patent published in 2018 - IPC B60C27/04 

FIELD: motor industry.

SUBSTANCE: invention relates to motor transport. Device for increasing the traction of tread (11) of vehicle wheel (10) comprises base (2) with suitable means for fastening to rim of said wheel (10) in accordance with the front surface, and a plurality of movable spokes (4) whose ends are connected to spurs (55) elastically connected to each other to form belt (5), the diameter of which gradually increases during placement. These movable spokes (4), suitable for switching by command of said belt (5) from a retracted rest configuration having the form of an annular gap, in which said spurs (55) are substantially disposed within the perimeter represented by said base (2) into an elongated working configuration, so that its expansion gradually increases to position the belt around tread (11), and said spurs (55) came into contact with the roadway. Devices for positioning said moving spokes (4) comprise a plate with grooves along special spiral (6) connected rotatably to said base (2) and supporting the initial and final development along the arc of the circle. Said movable spokes (4) comprising respective protruding pins (7) are inserted into said special spiral (6) so as to allow movement in the radial direction in accordance with rotation of said plate (6) relative to said base (2).

EFFECT: improved anti-slip function of the device with automatic control.

24 cl, 12 dwg