Directional interlocking sipe and/or slot with chamfer
AssigneeBridgestone Americas Tire Operations, LLC
InventorsPaul J. Wischt, JR., David M. Severyn
Life of this patent
Estimating the term…
Abstract
In one aspect, a tire is provided, the tire comprising: a tread portion comprising at least one of a tread rib or a tread block, a sipe included in the tread rib or the tread block, the sipe including: a key portion including: a key edge portion angled in a first circumferential direction at an angle KA, and a chamfer portion angled in the first circumferential direction at an angle CA, an upper parallel portion radially inward of and directly connected to the key portion, a central parallel portion radially inward of and directly connected to the upper parallel portion, and a base portion radially inward of and directly connected to the central parallel portion.
Claims20
A tire comprising:
- a tread portion comprising at least one of a tread rib or a tread block,
- a sipe included in the tread rib or the tread block, the sipe including:
- a key portion including:
- a key edge portion angled in a first circumferential direction at an angle KA, and a chamfer portion angled in the first circumferential direction at an angle CA,
- an upper parallel portion radially inward of and directly connected to the key portion,
- a central parallel portion radially inward of and directly connected to the upper parallel portion,
- and a base portion radially inward of and directly connected to the central parallel portion.
A tire comprising:
- a tread portion comprising at least one of a tread rib or a tread block,
- a sipe included in the tread rib or the tread block, the sipe including:
- a key portion including:
- a key edge portion angled in a first circumferential direction at an angle KA, and a chamfer portion angled in the first circumferential direction at an angle CA, and
- wherein the difference between the angle KA and the angle CA is 15 degrees.
A tire sipe blade comprising:
- an upper mold insertion portion,
- a lower sipe forming portion including:
- a key portion radially inward of and directed connected to the upper mold insertion portion, the key portion including a key edge portion angled in a first circumferential direction at an angle KA, and a chamfer portion angled in the first circumferential direction at an angle CA,
- an upper parallel portion radially inward of and directly connected to the key portion,
- a central parallel portion radially inward of and directly connected to the upper parallel portion,
- and a base portion radially inward of and directly connected to the central parallel portion.
Dependencies are inferred from the claim text.