B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
B62D 55/24 (2006.01)
Patent
CA 2721725
The tracks of the present invention utilize cut pieces of reinforcement which are associated with each individual drive lug. By using individual pieces the lugs can be easily built up with multiple layers of rubber and reinforcement. The cut pieces can be strategically shaped and placed to optimize their effect to realize improved performance and durability of the track. Incorporation of such inner fabric reinforcement layers adds stiffness to the lugs and thereby increases the torque capacity of the track. Additional layers also provide increased damage resistance after the outer layers of fabric are worn away, and added layers improve wear resistance on the sides of the lugs due to undercarriage misalignment and track-to-wheel contact when the vehicle turns during normal operations. All embedded inner fabric reinforcement layers are made of individually cut pieces of fabric which do not extend continuously around the entire circumference of the track. The embedded inner fabric reinforcements may be as wide as or narrower then the width of the lug. In the circumferential direction the fabric layers typically both begin and end within the lug without extending into the carcass of the track (under the base of the lugs). The present invention more specifically discloses an endless vehicle track comprising a body formed of an elastomeric material having an outer surface displaying a series of ground engaging profiles longitudinally spaced along said surface and an inner surface displaying a series of longitudinally spaced drive lugs adapted to be engaged by drive sprockets on said vehicle for retaining said track on said vehicle and for driving said vehicle, said drive lugs having a given width and height, said drive lugs having embedded therein at least a first inner fabric reinforcement layer extending into the lugs to a distance inward from the outer surface, wherein the inner fabric reinforcement layer begin at a first point within the lugs and end at a second point within the lugs.
Smart & Biggar
Veyance Technologies Inc.
LandOfFree
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