公开(公告)号：US20210138839A1

公开(公告)日：2021-05-13

申请号：US16778236

申请日：2020-01-31

Applicant: Apollo Tyres Global R&D B. V.

Inventor： Mark TEN DAM ,  Bert KREGMEIER ,  Dally GOPINATH

IPC: B60C11/03

Abstract: It is provided a pneumatic tyre having an equatorial plane for an agricultural machine, comprising: a tread having a first and a second lateral tread edge, the axial distance between the first and second lateral tread edges being the width of the tread, wherein the tread comprises a plurality of lugs extending radially between an inner surface of the tread and a tread surface to come into contact with the ground; and first lugs extending from the first lateral tread edge toward the inner equatorial plane, having a shoulder portion extending from the first lateral tread edge and a nose portion at the inner equatorial plane, and each of the first lugs having: an arcuate leading edge that arcs from the first lateral tread edge to an axial leading nose edge next to a substantially circumferential inner nose edge, and an arcuate trailing edge that arcs from the first lateral tread edge to the substantially circumferential inner nose edge; and second lugs extending from the second lateral tread edge toward the inner equatorial plane, having a shoulder portion extending from the second lateral tread edge and a nose portion at the inner equatorial plane, and each of the second lugs having: an arcuate leading edge that arcs from the second lateral tread edge to an axial leading nose edge next to a substantially circumferential inner nose edge, and an arcuate trailing edge that arcs from the second lateral tread edge to the substantially circumferential inner nose edge, wherein for each lug the length of the substantially circumferential inner nose edge is longer than the length of the axial inner nose edge and the width of said lug increases from the corresponding shoulder portion to the nose portion of said lug.