Patent ID: 6101746
Filing Date: 2000-08-15
Classification: A43B,A43C

Abstract:
A boot having a plurality of studs for penetrating a penetrable surface, said studs depending from the base of the boot, the studs being in the form of an arcuate body having, when viewed in underneath plan, a first axis and a second axis transverse to the first axis, the body providing at each end of the first axis a ramp surface which leads in an inclined manner substantially from a surface of the boot base substantially to a crown surface of the stud body and the body having a concave barrier surface provided at one of the ends of the second axis, the stud being asymmetric about the first axis in the plane of the second axis, so that when the stud penetrates a penetrable surface, a force tending to cause movement of the stud along the second axis in one direction is resisted and said stud grips the surface, and a force tending to cause movement of the stud along the first axis is not substantially resisted, the stud performing movement relative to the surface tending to wipe any accumulated surface material from its surfaces at the ends of the second axis and wherein at least some of the studs are disposed in a pattern which includes one or more partial or complete rings, the studs being arranged such that the barrier surface of the stud is located at the inside of the ring and the outer stud surface, that is, the surface located at the outside of the ring, is, at least in part, convex, characterized in that the barrier surface of the stud is more steep than the outer stud surface, and wherein said ramp surface has a convex portion adjacent to said crown surface.