Patent ID: 11970225
Assignee: POLARIS INDUSTRIES INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. An endless track for use in propelling a snowmobile, comprising:
an inner drive surface extending between a first lateral side and a second lateral side, the inner drive surface having a plurality of inner drive lugs to drive and rotate the endless track;
an outer ground-engaging surface extending between the first lateral side and the second lateral side, the outer ground-engaging surface having a plurality of treads extending from the outer ground-engaging surface, at least one tread extending continuous and uninterrupted from the first lateral side to the second lateral side a full width of the endless track; and
a reinforcing rod extending laterally between the first lateral side and the second lateral side at each pitch of the endless track;
wherein the at least one tread defines three cup-shaped front concave surfaces extending between the first lateral side and the second lateral side, the three cup-shaped front concave surfaces each having an arcuate concave contour with a center cup centered along a longitudinal axis of the endless track and a first cup on one side of the center cup and a second cup on an opposite side of the center cup;
wherein each tread of the plurality of treads is longitudinally spaced at every other pitch of the endless track.