Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP6388013
Kind Code:
B2
Abstract:
Provided is a pneumatic tire (1) having a designated rotation direction in order to suppress noise while maintaining wet performance. A cross circumferential main groove (11) refers to a circumferential main grooves (10) forming a cross portion (50) in which a lug groove (20) is connected to the circumferential main groove (10) from an inside in a tire lateral direction. A cross lug groove (21) refers to the lug groove (20) forming the cross portion (50). A cross block (31) refers to a block (30) having an inner side in the tire lateral direction, which is defined by the cross circumferential main groove (11). A center line intersection point (33) refers to an intersection point of a cross lug groove center line (24) being a center line of the cross lug groove (21) and an edge portion (32) of the cross block (31) on a side defined by the cross circumferential main groove (11). With those definitions, a distance (Lf) is from the center line intersection point (33) to a center line of the lug groove (20) defining the cross block (31) on a front side in a tire rotation direction, and a distance (Lb) is from the center line intersection point (33) to a center line of the lug groove (20) defining the cross block (31) on a rear side in the tire rotation direction. In this case, a relationship between the distance (Lf) and the distance (Lb) is within a range of 1.0 ≤ (Lb/Lf) ≤ 1.2.
Inventors:
Tamura Shoji
Application Number:
JP2016209787A
Publication Date:
September 12, 2018
Filing Date:
October 26, 2016
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
B60C11/03
Domestic Patent References:
| JP2012051502A | ||||
| JP2010116096A | ||||
| JP2002248906A | ||||
| JP2001322408A | ||||
| JP2003011617A |
Foreign References:
| WO2013014897A1 | ||||
| DE19548733A1 |
Attorney, Agent or Firm:
Sakai International Patent Office