Skidproof traction mat for automotive vehicles

Claim 1

A traction pad for an automotive vehicle having pneumatic tires, comprising a flat, flexible mat made of elastic, resilient material, said mat having flat top and bottom surfaces with a multiplicity of staggered, blind holes formed in the bottom of the mat, said mat being formed with integral, resilient, transverse, parallel ridges on the top surface for frictionally engaging a tire; a multiplicity of rigid studs partially embedded in the holes respectively in the bottom of the mat, each stud having an axial length less than the thickness of the mat for seating in a hole therein, each stud having a head at one end, a cylindrical body integral with the head, and an integral pin portion of reduced diameter extending axially outward of the cylindrical body, said studs being partially inserted in said holes with the heads and bodies removably engaged in the holes and with the ends of the pin portions extending out of the bottom surface of the mat for digging into and gripping the ground under the weight of the vehicle on the mat; and a plurality of other integral, resilient, transverse parallel ridges on the bottom surface of the mat between said pin portions of the studs, ends of the pin portions being substantially coplanar with said other ridges for cooperation therewith in holding the mat stationary on slipper ground, said ridges being compressible so that the flat bottom surface of the mat between the studs grips the ground by suction when the weight of the vehicle rests on the mat.