| 摘要 |
PCT No. PCT/US96/13107 Sec. 371 Date Feb. 12, 1998 Sec. 102(e) Date Feb. 12, 1998 PCT Filed Aug. 12, 1996 PCT Pub. No. WO97/06707 PCT Pub. Date Feb. 27, 1997An elasticized sock (22) is formed from a cowling of elastomer material which is so limp in the normally relaxed state thereof as to be essentially formless; and the sock is stretched about the outer periphery (18) of a movable boss, i.e., the welt of a shoe sole (2), the flange of a brake pedal, or the tire of a car wheel, and tightly engaged with the boss so as to interpose a portion of the sock between the boss and an interactive surface there opposite. Part of the elasticity with which the sock is stretchable about the boss, arises from the fact that the portion of the sock interposed between the boss and the interactive surface, comprises a network of elongated strands of elastomer material which lends elasticity to the portion. However, the portion also has an exoskeleton of elongated resiliently flexible coils of hard durable traction material loosely helically wound about strands of the network to carapace the network against abrasive action of the footprint of engagement between the boss and the interactive surface, and form a gallery of elongated protective cavities for the strands, i.e., the bores of the coils, within which the network can flex resiliently during the step of stretching the sock about the boss, and during any subsequent movement of the sock in relation to the boss and the interactive surface at the footprint of engagement therebetween. |
