Title:
PNEUMATIC TYRE FOR FARMING OPERATION
Document Type and Number:
Japanese Patent JPH01257604
Kind Code:
A
Abstract:
PURPOSE:To decrease earthing surface pressure by means of the increase of earthing area of the title tyre and also contrive improvement of running linearity and the restraint of pitching thereof by slanting a tread part in one direction and also making the rigidity of a right/left pair of side wall parts higher or lower from each other. CONSTITUTION:A pneumatic tyre 10 is provided with a right/left pair of bead parts 11, 12, side wall parts 13, 14 and shoulder parts 15, 16 and also respective shoulder parts 15, 16 are connected together by interposing a tread part 17 therebetween. In this case, the pneumatic tyre 10 is formed laterally asymmetrical with respect to the center line thereof, namely a meridian O-O. The tread part 17 is slanted in one direction from one shoulder part 16 toward the other shoulder part 15 and is also formed with the shape along the slant surface 18 of a levee. In respective side wall parts 13, 14, the rigidity of the side 13 on levee side thereof is made low, while the rigidity of the side 14 on the counter levee side thereof is made high. Thereby, the damage of the levee and the stagger to the right and left sides can be prevented and then this tyre is made suitable for a transplanting machine and the like.
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Inventors:
TSUJIMOTO HAYAO
Application Number:
JP8679088A
Publication Date:
October 13, 1989
Filing Date:
April 07, 1988
Export Citation:
Assignee:
OHTSU TIRE & RUBBER CO LTD
International Classes:
B60C3/06; B60C13/00; (IPC1-7): B60C3/06; B60C13/00
Attorney, Agent or Firm:
Toshio Yasuda
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