EP 1021305 A1 20000726 - ASYMMETRIC DIRECTIONAL PNEUMATIC AGRICULTURAL TIRE
Title (en)
ASYMMETRIC DIRECTIONAL PNEUMATIC AGRICULTURAL TIRE
Title (de)
UNSYMMETRISCHER RICHTUNGVERBUNDENER LANDWIRTSCHAFTSREIFEN
Title (fr)
PNEU TRACTEUR DIRECTIONNEL ASYMETRIQUE
Publication
Application
Priority
US 9707008 W 19970425
Abstract (en)
[origin: WO9849021A1] A pneumatic agricultural tire (20) has an asymmetric directional tread (32) with lugs (50A, 50B, 50C) arranged in a chevron type pattern (70, 72). The chevron pattern (70, 72) is asymmetric having the apex or point (74) lying entirely on one-half (32A or 32B) of the tread (32) thus creating soil discharge channels (80, 82) that are greater on one tread half (32A or 32B) relative to the other tread half (32A or 32B). This tread pattern permits the employment of lugs (50A, 50B) of substantially equal lug length l>1< insuring more uniform wear characteristics.
IPC 1-7
IPC 8 full level
B60C 11/11 (2006.01); B60C 11/03 (2006.01)
CPC (source: EP)
B60C 11/0304 (2013.01); B60C 11/0311 (2013.01); B60C 2011/0313 (2013.01)
Citation (search report)
See references of WO 9849021A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
WO 9849021 A1 19981105; AU 2743997 A 19981124; CA 2285006 A1 19981105; EP 1021305 A1 20000726; ID 20216 A 19981029; JP 2001522333 A 20011113
DOCDB simple family (application)
US 9707008 W 19970425; AU 2743997 A 19970425; CA 2285006 A 19970425; EP 97921394 A 19970425; ID 980511 A 19980406; JP 54691498 A 19970425