TRACTION CAR (VERSIONS) Russian patent published in 2001 - IPC

FIELD: automotive industry. SUBSTANCE: invention relates to adaptation of passenger car for towing agricultural implements or machines. Proposed traction car is made on base of passenger car and is provided with wheeled chassis with rear driving wheels on pneumatic tyres according to first three design versions. According to first design version, removable ballast weight is arranged in car body or on its frame to increase weight of body rear part. Rear wheel tyres are provided with lugs of trapezoidal shape in form of blades with angular pitch of τ = 10-20^°. on working surface. Angular pitch of blades according to second and third design versions is τ = 10-30^°. Front wheel tyres, according to second and third design versions, are provided with longitudinal riffles located at a distance from each other over width of tyre working surface. Car of second design version is furnished with detachable metal yokes secured to rear wheel and made in form of two pairs of half-disk interconnected by welded-to cross blades and bolted to flanges of wheel axle-shaft. According to third design version, each yoke is made in form of disk or two half-disks with cross blades. Disk or half-disks are fastened to flange of wheel axle- shaft through double-flange extension for arranging the wheels outside the body. According to fourth design version, rear wheels are metal, T-section, and provided with blades mounted over rim at angular pitch of 15-30^° to create sufficiently heavy force owing to complete penetration of blades into soil. EFFECT: increased adhesive forces and traction forces of car for working in the field. 5 cl, 19 dwg