{
  "$type": "site.standard.document",
  "description": "To provide a pneumatic tire which is improved in on-snow performance, while maintaining steering stability on dry road surface. The pneumatic tire is provided in a tread portion with a pair of shoulder main grooves , a center main groove , shoulder land portions , and middle land portions . The…",
  "path": "/patents/1382871",
  "publishedAt": "2016-05-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/125",
    "Sumitomo Rubber Industries, Ltd."
  ],
  "textContent": "To provide a pneumatic tire which is improved in on-snow performance, while maintaining steering stability on dry road surface. The pneumatic tire is provided in a tread portion with a pair of shoulder main grooves , a center main groove , shoulder land portions , and middle land portions . The middle land portions are provided with middle lateral grooves extending from the shoulder main grooves toward the inside in the tire axial direction, while gradually decreasing the angle with respect to tire circumferential direction. The middle lateral groove is provided with a groove bottom sipe opened in the groove bottom.",
  "title": "PNEUMATIC TIRE"
}