초록

Traction devices for an automobile tire include an adherent elongate expanse and a studded layer sandwiched between the adherent layer and the surface of a tire.

대표청구항 ▼

1. A traction device for mounting on a vehicular tire comprisinga flexible sheet-like expanse having first and second sides, studs protruding from the first side, and adhesive on the second side for adhering the expanse to the tire with a long-axis of the expanse alligned with the circumference of t

1. A traction device for mounting on a vehicular tire comprisinga flexible sheet-like expanse having first and second sides, studs protruding from the first side, and adhesive on the second side for adhering the expanse to the tire with a long-axis of the expanse alligned with the circumference of the tire, wherein the expanse is comprised of at least two layers, a first elongate flexible layer and a second layer having studs formed thereon, the two layers being bound together, and wherein the studs on the second layer impinge on the first layer. 2. A traction device for mounting on a vehicular tire comprisinga flexible sheet-like expanse having first and second sides, studs protruding from the first side, and adhesive on the second side for adhering the expanse to the tire with a long-axis of the expanse aligned with the circumference of the tire, wherein the expanse is comprised of at least two layers, a first elongate flexible layer and a second layer having studs formed thereon, the two layers being bound together, and wherein the studs pierce the first layer. 3. A traction device for mounting on a vehicular tire comprisinga flexible sheet-like expanse having first and second sides, studs protruding from the first side, and adhesive on the second side for adhering the expanse to the tire with a long-axis of the expanse aligned with the circumference of the tire, wherein the expanse is comprised of at least two layers, a first elongate flexible layer and a second layer having studs formed thereon, the two layers being bound together, and wherein each of the layers has rounded ends. 4. A traction device for mounting on a vehicular tire comprisinga flexible sheet-like expanse having first and second sides, studs protruding from the first side, and adhesive on the second side for adhering the expanse to the tire with a long-axis of the expanse aligned with the circumference of the tire, wherein the expanse is comprised of at least two layers, a first elongate flexible layer and a second layer having studs formed thereon, the two layers being bound together, and wherein the area of the first layer is substantially greater than the area of the second layer. 5. A traction device for mounting on a vehicular tire comprisinga flexible sheet-like expanse having first and second sides, studs protruding from the first side, and adhesive on the second side for adhering the expanse to the tire with a long-axis of the expanse aligned with the circumference of the tire, and removable protective sheets on the first and second sides of the expanse. 6. A traction device for mounting on a vehicular tire comprisinga first sheet having adhesive on at least a first side, a second sheet bound to the first side of the first sheet, wherein the second sheet has a plurality of stud structures with tips contacting the first side of the first sheet, the first and second sheets being configured so that the stud structures remain substantially covered by the first sheet until the weight of an automobile causes the stud structures to puncture through the first sheet. 7. The traction device of claim 6, wherein the first sheet has a central region aligned with a long-axis, the stud structures being concentrated in the central region of the expanse.8. The traction device of claim 6, wherein the first sheet has a corner-less shape.9. The traction device of claim 6, wherein the second sheet has a continuous edge that is completely covered by the first sheet when the traction device is mounted on the tire.10. The traction device of claim 6, wherein each of the first and second sheets has a width, the width of the first sheet being substantially greater than the width of the second sheet.11. A traction tire assembly comprisinga vehicular tire, an elongate patch adhesively bound to the tire, the patch including a first sheet having adhesive on a first side adhering the first sheet to the tire, and a second sheet sandwiched between the tire and the first side of the first sheet, wherein the second sheet has a plurality of stud structures protruding through the first sheet. 12. The traction device of claim 11, wherein the first sheet has a central region aligned with a long-axis, the stud structures being concentrated in the central region of the expanse.13. The traction device of claim 11, further comprisinga second elongate patch, the patches being bound in series around the circumference of the tire. 14. The traction device of claim 11, wherein the patch does not extend on to the sidewalls of the tire.