{
  "$type": "site.standard.document",
  "description": "A pneumatic tire (1) includes a tread portion (2) provided with at least one zigzag main groove extending continuously in a circumferential direction of the tire with a plurality of zigzag corners. The main groove includes a groove bottom (8) and a pair of groove edges (9). The groove bottom…",
  "path": "/patents/947963",
  "publishedAt": "2015-12-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/11",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A pneumatic tire (1) includes a tread portion (2) provided with at least one zigzag main groove extending continuously in a circumferential direction of the tire with a plurality of zigzag corners. The main groove includes a groove bottom (8) and a pair of groove edges (9). The groove bottom extends in a zigzag manner in the circumferential direction of the tire with a first amplitude (V1). The groove bottom has a width (W) varying periodically so that a maximum width portion (12) and a minimum width portion (13) appear in turn at the zigzag corners. Each of the groove edges extends in a zigzag manner in the circumferential direction of the tire with a second amplitude (V2), wherein the first amplitude is greater than the second amplitude.",
  "title": "PNEUMATIC TIRE"
}